@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&family=Inter:wght@400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Modern React-inspired Color Palette (Tailwind-like) */
    --primary-blue: #3b82f6;
    /* Blue 500 */
    --primary-blue-hover: #2563eb;
    /* Blue 600 */
    --primary-blue-light: #eff6ff;
    /* Blue 50 */
    --google-red: #ef4444;
    /* Red 500 */
    --google-yellow: #f59e0b;
    /* Amber 500 */
    --google-green: #10b981;
    /* Emerald 500 */
    --google-blue: #3b82f6;
    /* Blue 500 */

    /* Backgrounds */
    --bg-primary: #ffffff;
    --bg-secondary: #f4f4f5;
    /* Zinc 100 */
    --bg-tertiary: #e4e4e7;
    /* Zinc 200 */
    --bg-hover: #f4f4f5;

    /* Text Colors - Higher Contrast */
    --text-primary: #000000;
    --text-secondary: #333333;
    --text-muted: #555555;
    --text-link: #1d4ed8;
    --text-link-visited: #6d28d9;

    /* Borders - Sharper */
    --border-color: #d1d5db;
    --border-light: #e5e7eb;

    /* Shadows (Tailwind style) */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-focus: 0 0 0 2px var(--bg-primary), 0 0 0 4px rgba(59, 130, 246, 0.5);

    /* Spacing */
    --header-height: 72px;
    /* Cleaner, slightly smaller header */
    --nav-height: 48px;
    --sidebar-width: 280px;

    /* Border Radius - More rounded for modern feel */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --footer-height: 60px;
}

/* Custom Premium Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border: 2px solid var(--bg-primary);
}


/* Dark Theme - Modern React/Vercel styling */
[data-theme="dark"] {
    --bg-primary: #09090b;
    /* Zinc 950 */
    --bg-secondary: #18181b;
    /* Zinc 900 */
    --bg-tertiary: #27272a;
    /* Zinc 800 */
    --bg-hover: #27272a;
    /* Zinc 800 */

    --text-primary: #ffffff;
    --text-secondary: #e5e7eb;
    --text-muted: #9ca3af;
    --text-link: #60a5fa;
    --text-link-visited: #c084fc;

    --border-color: #3f3f46;
    --border-light: #52525b;

    --primary-blue-light: rgba(59, 130, 246, 0.15);
}

body {
    font-family: 'Inter', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 17px;
    /* Increased from default 16px */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 120px;
    /* Space for fixed footer */
}

body.chat-mode {
    overflow: hidden;
    padding-bottom: 0;
}

body.chat-mode .scholar-footer {
    display: none;
}

/* Skeleton Loader */
#skeleton-loader {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

#skeleton-loader.hidden {
    display: none;
}

.skeleton-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.skeleton-card::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg,
            transparent 0,
            rgba(255, 255, 255, 0.4) 20%,
            rgba(255, 255, 255, 0.4) 60%,
            transparent 100%);
    animation: shimmer 1.5s infinite;
}

.dark-theme .skeleton-card::after {
    background: linear-gradient(90deg,
            transparent 0,
            rgba(255, 255, 255, 0.05) 20%,
            rgba(255, 255, 255, 0.05) 60%,
            transparent 100%);
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

/* Chat Source Card Styles */
.insight-source-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
    margin-bottom: 12px;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.insight-source-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.source-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.source-card-confidence {
    font-size: 11px;
    font-weight: 600;
    color: var(--google-green);
    background: rgba(52, 168, 83, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.source-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-blue);
    line-height: 1.4;
    margin-bottom: 6px;
}

.source-card-snippet {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    font-style: italic;
    border-left: 2px solid var(--primary-blue-light);
    padding-left: 8px;
}

.skeleton-title {
    width: 60%;
    height: 20px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    margin-bottom: 12px;
}

.skeleton-meta {
    width: 40%;
    height: 14px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    margin-bottom: 20px;
}

.skeleton-text {
    width: 100%;
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    margin-bottom: 8px;
}

.skeleton-text.short {
    width: 70%;
}

/* Search Loader & Spinner */
.search-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 8px;
}

.spinner {
    animation: rotate 2s linear infinite;
    width: 20px;
    height: 20px;
}

.spinner .path {
    stroke: var(--primary-blue);
    stroke-linecap: round;
    animation: dash 1.5s ease-in-out infinite;
}

@keyframes rotate {
    100% {
        transform: rotate(360deg);
    }
}

@keyframes dash {
    0% {
        stroke-dasharray: 1, 150;
        stroke-dashoffset: 0;
    }

    50% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -35;
    }

    100% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -124;
    }
}

.search-loader.hidden {
    display: none;
}

/* ==========================================
   HEADER STYLES
   ========================================== */
.scholar-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(228, 228, 231, 0.6);
    display: flex;
    align-items: center;
    padding: 0 16px;
    z-index: 1200;
    gap: 16px;
}

[data-theme="dark"] .scholar-header {
    background: rgba(9, 9, 11, 0.75);
    border-bottom: 1px solid rgba(39, 39, 42, 0.6);
}

.header-left {
    flex-shrink: 0;
}

.scholar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-dna {
    transition: transform var(--transition-normal);
}

@keyframes logo-pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
        filter: brightness(1.1);
    }

    100% {
        transform: scale(1);
    }
}

.scholar-logo:hover .logo-dna {
    animation: logo-pulse 1s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.sync-text {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.logo-text {
    font-size: 22px;
    font-weight: 500;
    letter-spacing: -0.5px;
}

.logo-scholar {
    color: var(--primary-blue);
}

.beta-badge {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #1e40af 100%);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 12px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    margin-left: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 24px;
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
    opacity: 1;
    transition: all 0.3s ease;
    animation: beta-pulse 2s infinite;
}

@keyframes beta-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }

    70% {
        box-shadow: 0 0 0 6px rgba(59, 130, 246, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

.header-search {
    flex: 1;
    max-width: 1000px !important;
    /* Increased from 800px */
    margin: 0 auto;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    /* Reduced gap */
}

/* Ensure Search Wrapper doesn't overflow */
.search-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    padding: 0 4px 0 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    height: 54px;
    /* Increased from 46px */
}

.search-input-wrapper:hover {
    box-shadow: var(--shadow-md);
    background: var(--bg-primary);
    border-color: var(--text-muted);
}

.search-input-wrapper:focus-within {
    background: var(--bg-primary);
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.search-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-input-wrapper input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0 12px;
    height: 100%;
    font-size: 16px;
    font-family: inherit;
    color: var(--text-primary);
    outline: none;
}

.search-input-wrapper input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 4px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    position: relative;
    pointer-events: auto;
    box-shadow: var(--shadow-sm);
}

#advanced-search-btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    border-radius: var(--radius-full);
    width: 38px;
    height: 38px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 4px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 20;
    position: relative;
    pointer-events: auto;
    padding: 0;
}

#advanced-search-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.search-btn:hover {
    background: var(--primary-blue-hover);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transform: scale(1.05);
}

.search-btn:disabled,
.search-btn.loading {
    opacity: 0.7;
    cursor: not-allowed;
    pointer-events: none;
}

.clear-input-btn,
.stop-input-btn {
    position: absolute;
    right: 86px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-hover);
    border: none;
    font-size: 18px;
    line-height: 1;
    width: 24px;
    height: 24px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.clear-input-btn {
    color: var(--google-red);
}

.stop-input-btn {
    background: #d93025;
    /* Solid red */
    color: white;
    /* White icon */
    width: 30px;
    height: 30px;
    right: 84px;
    box-shadow: 0 4px 8px rgba(217, 48, 37, 0.3);
    border: none;
    animation: stop-pulse-intense 1.5s infinite;
}

@keyframes stop-pulse-intense {
    0% {
        box-shadow: 0 0 0 0 rgba(217, 48, 37, 0.7);
        transform: translateY(-50%) scale(1);
    }

    50% {
        transform: translateY(-50%) scale(1.1);
    }

    100% {
        box-shadow: 0 0 0 10px rgba(217, 48, 37, 0);
        transform: translateY(-50%) scale(1);
    }
}

.clear-input-btn:hover {
    color: #c62828;
    background: var(--bg-tertiary);
    transform: translateY(-50%) scale(1.1);
}

.stop-input-btn:hover {
    background: #c62828;
    color: white;
    transform: translateY(-50%) scale(1.2) !important;
}

.stop-input-btn.hidden {
    display: none;
}

.search-icon-btn {
    background: transparent;
    border: none;
    padding: 8px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
}

.search-icon-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.quick-filter-clear {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.2);
    color: #ff6b6b;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.quick-filter-clear:hover {
    background: #ff6b6b;
    color: white;
    border-color: #ff6b6b;
}

.quick-stats-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.quick-stats-badge .badge-label {
    color: var(--text-muted);
    text-transform: uppercase;
}

.quick-stats-badge .badge-value {
    color: var(--primary-blue);
}

.clear-input-btn.hidden {
    display: none;
}


/* Autocomplete Dropdown */
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    margin-top: 4px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 1001;
}

.autocomplete-dropdown.hidden {
    display: none;
}

.autocomplete-section {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}

.autocomplete-section:last-child {
    border-bottom: none;
}

.autocomplete-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.clear-history-btn {
    margin-left: auto;
    background: transparent;
    border: none;
    color: var(--primary-blue);
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
}

.clear-history-btn:hover {
    text-decoration: underline;
}

.autocomplete-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.autocomplete-item:hover {
    background: var(--bg-hover);
}

.autocomplete-item svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.autocomplete-item span {
    color: var(--text-primary);
    font-size: 14px;
}

/* Header Right - Actions */
.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.header-stats {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 6px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 13px;
    margin-right: 12px;
    overflow-x: auto;
    max-width: 300px;
    scrollbar-width: none;
}

.header-stats::-webkit-scrollbar {
    display: none;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.stats-count {
    font-weight: 700;
    color: var(--primary-blue);
}

.stats-label {
    color: var(--text-secondary);
}

.header-icon-btn {
    background: transparent;
    border: none;
    padding: 8px;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    width: 40px;
    height: 40px;
}

/* Sync Indicator */
.sync-indicator-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
    border: 1px solid transparent;
    user-select: none;
}

[data-theme="dark"] .sync-indicator-wrapper {
    background: var(--bg-tertiary);
    border-color: rgba(255, 255, 255, 0.05);
}

.sync-indicator-wrapper:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.sync-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
    position: relative;
}

.sync-dot.synced {
    background: var(--google-green);
    box-shadow: 0 0 8px var(--google-green);
}

.sync-dot.syncing {
    background: #f59e0b;
    box-shadow: 0 0 8px #f59e0b;
    animation: sync-pulse 1s infinite;
}

.sync-dot.offline {
    background: var(--google-red);
    box-shadow: 0 0 8px var(--google-red);
}

@keyframes sync-pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.3);
        opacity: 0.6;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}



.header-icon-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.login-btn {
    width: auto !important;
    padding: 0 16px !important;
    gap: 8px;
    background: var(--primary-blue);
    color: white !important;
    font-weight: 500;
}

.login-btn:hover {
    background: var(--primary-blue-hover) !important;
}

.login-btn svg {
    color: white !important;
}


/* Reading List Badge */
.reading-list-btn .reading-list-count {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--google-red);
    color: white;
    font-size: 10px;
    font-weight: 600;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.reading-list-count:empty,
.reading-list-count[data-count="0"] {
    display: none;
}

/* Notification Styles (Fixed Layout) */
.notification-container {
    position: relative;
}

.notification-count {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--google-red);
    color: white;
    font-size: 10px;
    font-weight: 600;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    z-index: 10;
}

.notification-count.hidden {
    display: none;
}

.notification-dropdown {
    position: absolute;
    top: 120%;
    /* Push it down */
    right: 0;
    width: 320px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    overflow: hidden;
    animation: fadeIn 0.1s ease;
}

.notification-dropdown.hidden {
    display: none;
}

.notification-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-secondary);
}

.notification-header h3 {
    font-size: 14px;
    font-weight: 700;
    margin: 0;
}

.header-main {
    display: flex;
    align-items: center;
    gap: 8px;
}

.settings-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    /* Increased padding */
    margin-left: 4px;
    border-radius: 50%;
    /* Rounder hover */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    position: relative;
    z-index: 5;
    outline: none;
}

.settings-btn:hover {
    color: var(--primary-blue);
    background: var(--bg-hover);
    transform: rotate(45deg);
    /* Slightly more rotation */
}

.settings-btn:active {
    transform: rotate(45deg) scale(0.9);
}

.settings-btn svg {
    pointer-events: none;
    /* Let clicks pass to button */
}

.mark-read-btn {
    background: transparent;
    border: none;
    color: var(--primary-blue);
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.mark-read-btn:hover {
    background: var(--primary-blue-light);
}

.notification-filters {
    display: flex;
    padding: 8px 12px;
    gap: 4px;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-primary);
    overflow-x: auto;
}

.notif-filter-tab {
    padding: 5px 12px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.notif-filter-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.notif-filter-tab.active {
    background: var(--primary-blue);
    color: white;
}

.notification-list {
    max-height: 300px;
    overflow-y: auto;
}

.notification-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    gap: 12px;
    cursor: pointer;
    transition: background 0.1s;
}

.notification-item:hover {
    background: var(--bg-hover);
}

.notification-item.unread {
    background: var(--primary-blue-light);
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 2px;
    display: block;
}

.notification-body {
    font-size: 12px;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 4px;
}

.notification-time {
    font-size: 10px;
    color: var(--text-muted);
}

.empty-state {
    padding: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

/* Advanced Notification Features */
.notification-date-group {
    margin-bottom: 16px;
}

.notification-date-header {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-light);
}

.notification-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 4px;
}

.priority-badge {
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.priority-low {
    background: rgba(52, 168, 83, 0.1);
    color: #34a853;
}

.priority-medium {
    background: rgba(251, 188, 5, 0.1);
    color: #fbbc05;
}

.priority-high {
    background: rgba(234, 67, 53, 0.1);
    color: #ea4335;
}

.priority-urgent {
    background: rgba(234, 67, 53, 0.2);
    color: #ea4335;
    animation: urgent-pulse 2s ease-in-out infinite;
}

@keyframes urgent-pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.notification-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.notification-action-btn {
    background: var(--primary-blue);
    color: white;
    border: none;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}


.notification-action-btn:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-1px);
}

.notification-dismiss {
    position: absolute;
    top: 12px;
    right: 12px;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    opacity: 0;
    transition: all var(--transition-fast);
}

.notification-item:hover .notification-dismiss {
    opacity: 1;
}

.notification-item.priority-urgent {
    border-left: 3px solid #ea4335;
}

.notification-item.priority-high {
    border-left: 3px solid #fbbc05;
}

.notification-btn {
    position: relative;
}

@keyframes notification-pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.notification-count:not(.hidden)~svg {
    animation: notification-pulse 2s ease-in-out infinite;
}



/* ==========================================
   NAVIGATION STYLES
   ========================================== */
.scholar-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: 56px;
    /* Slightly taller for better breathing space */
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    /* Soft shadow */
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-tabs {
    display: flex;
    gap: 12px;
    height: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    /* Firefox */
    -ms-overflow-style: none;
    /* IE/Edge */
}

.nav-tabs::-webkit-scrollbar {
    display: none;
    /* Hide scrollbar for tabs but keep functionality */
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px;
    height: 40px;
    margin: 8px 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    position: relative;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    outline: none;
    user-select: none;
    letter-spacing: 0.2px;
}

.nav-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-tab.active {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
}

.nav-tab.active svg {
    color: var(--primary-blue);
}

.nav-tab svg {
    color: var(--text-muted);
    transition: color 0.2s;
}

.nav-tab:hover {
    color: var(--text-primary);
}

.nav-tab:hover svg {
    color: var(--text-secondary);
}

.nav-tab.active {
    color: var(--primary-blue);
}

.nav-tab.active svg {
    color: var(--primary-blue);
}

/* Rounded Bottom Indicator */
.nav-tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    /* Align with nav border */
    left: 12px;
    right: 12px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 3px 3px 0 0;
    transform: scaleX(0);
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-tab.active::after {
    transform: scaleX(1);
}

.nav-tab:active {
    transform: translateY(1px);
    /* Micro-interaction */
}

.nav-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.view-toggle {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.view-btn {
    padding: 6px 8px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
}

.view-btn:hover {
    color: var(--text-primary);
}

.view-btn.active {
    background: var(--bg-primary);
    color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.ai-avatar-small {
    background: linear-gradient(135deg, var(--primary-blue), #0d47a1);
    color: white;
    box-shadow: 0 3px 8px rgba(0, 86, 210, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.beta-tag {
    background: linear-gradient(135deg, #FF4B2B, #FF416C);
    color: white;
    font-size: 11px;
    font-weight: 900;
    padding: 3px 12px;
    border-radius: var(--radius-full);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(255, 75, 43, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 22px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    cursor: default;
    transition: all 0.3s ease;
}

.beta-tag:hover {
    transform: translateY(-1px) scale(1.05);
    box-shadow: 0 6px 20px rgba(255, 75, 43, 0.4);
}

.ready-tag {
    background: linear-gradient(135deg, #00c853, #00d2ff);
    color: white;
    font-size: 9px;
    font-weight: 800;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    letter-spacing: 0.5px;
    box-shadow: 0 0 10px rgba(0, 200, 83, 0.3);
    animation: ready-pulse 2s infinite;
    text-transform: uppercase;
}

@keyframes ready-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.4);
    }

    70% {
        box-shadow: 0 0 0 6px rgba(0, 200, 83, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 200, 83, 0);
    }
}

/* ==========================================
   READING LIST PANEL
   ========================================== */
.reading-list-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--bg-primary);
    border-left: 1px solid var(--border-color);
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    transition: right var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.reading-list-panel.open {
    right: 0;
}

.reading-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.reading-list-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
}

.close-panel-btn {
    background: transparent;
    border: none;
    padding: 8px;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.close-panel-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.reading-list-actions {
    display: flex;
    gap: 8px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-light);
}

.export-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.export-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.reading-list-items {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.reading-list-item {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.reading-list-item:hover {
    border-color: var(--primary-blue-light);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.reading-list-item-title {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 15px;
    line-height: 1.4;
    text-decoration: none;
    transition: color var(--transition-fast);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.reading-list-item-title:hover {
    color: var(--primary-blue);
}

.reading-list-item-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
}

.meta-date {
    display: flex;
    align-items: center;
    gap: 4px;
}

.meta-source-pill {
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.source-pubmed {
    background: #e3f2fd;
    color: #1976d2;
}

.source-clinical {
    background: #f1f8e9;
    color: #558b2f;
}

.reading-list-item-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    text-decoration: none;
}

.action-btn svg {
    opacity: 0.7;
}

.action-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.action-btn.remove:hover {
    background: #fff5f5;
    color: #e53935;
    border-color: #ffcdd2;
}

.action-btn.details:hover {
    background: #e3f2fd;
    color: #1976d2;
    border-color: #bbdefb;
}

/* Related Tags Styling */
.related-searches {
    margin-top: 32px;
    padding: 24px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
}

.related-searches h3 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.related-tags-container {
    display: flex;
    flex-wrap: nowrap;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
}

.related-tags-container::-webkit-scrollbar {
    height: 6px;
}

.related-tags-container::-webkit-scrollbar-track {
    background: transparent;
}

.related-tags-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.related-tags-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.related-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.related-tag svg {
    opacity: 0.5;
    transition: transform var(--transition-normal);
}

.related-tag:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    background: var(--primary-blue-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.related-tag:hover svg {
    opacity: 1;
    transform: scale(1.1);
}


.empty-reading-list {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-reading-list svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-reading-list p {
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-reading-list span {
    font-size: 13px;
}

/* ==========================================
   MAIN CONTENT STYLES
   ========================================== */
.scholar-main {
    flex: 1;
    margin-top: calc(var(--header-height) + var(--nav-height));
    padding: 24px 16px;
}

.scholar-main.no-padding {
    padding: 0;
}

.tab-content {
    display: none;
    height: 100%;
    width: 100%;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

.main-container {
    max-width: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-normal);
}

.main-container.full-width {
    max-width: 100% !important;
    padding: 0 !important;
    gap: 0;
}

.main-container.full-width .results-area {
    width: 100%;
    margin: 0;
}

#articles-tab {
    width: 100%;
    margin: 0;
    padding: 32px 0;
}

#chat-tab,
#trends-tab {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 0 32px;
    /* Restore side padding since main-container lost it */
}

#chat-tab {
    height: calc(100vh - var(--header-height) - var(--nav-height) - var(--footer-height));
    overflow: hidden;
}

/* ==========================================
   TRENDS DASHBOARD UI
   ========================================== */
.trends-dashboard {
    padding: 24px;
    background: var(--bg-secondary);
    min-height: calc(100vh - var(--header-height) - var(--nav-height));
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.trends-header-new {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.trends-header-new h2 {
    font-size: 24px;
    margin-bottom: 4px;
}

.stats-mini {
    display: flex;
    gap: 24px;
}

.stat-mini-item {
    display: flex;
    flex-direction: column;
}

.stat-mini-item .label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 700;
}

.stat-mini-item .value {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-mini-item .value.positive {
    color: var(--google-green);
}

/* ================================================
   MODERNIZED RESEARCH TRENDS TAB - Vibrant Gradients
   ================================================ */

.trends-container {
    padding: 24px !important;
    min-height: calc(100vh - var(--header-height) - var(--nav-height));
}

.trends-wrapper {
    max-width: 1200px;
    margin: 0 auto;
}

.trends-header {
    margin-bottom: 32px;
    animation: fadeInDown 0.6s ease-out;
}

.trends-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.trends-header p {
    font-size: 15px;
    color: var(--text-secondary);
}

/* Responsive Grid */
.trends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

@media (max-width: 768px) {
    .trends-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* Base Card Styling */
.trends-card {
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.trends-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Primary Card - Blue to Purple Gradient */
.trends-card-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    color: white;
}

.trends-card-primary:hover {
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
}

/* Secondary Card - Green to Teal Gradient */
.trends-card-secondary {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
    color: white;
}

.trends-card-secondary:hover {
    background: linear-gradient(135deg, #059669 0%, #0891b2 100%);
}

/* Card Header */
.trends-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.trends-card-header span {
    font-size: 24px;
    line-height: 1;
}

.trends-card-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
    color: inherit;
}

/* Trends List */
.trends-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.trends-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-fast);
    cursor: pointer;
    user-select: none;
}

.trends-list-item:last-child {
    border-bottom: none;
}

.trends-list-item:hover {
    padding-left: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding-right: 8px;
}

.trends-list-item-label {
    font-weight: 500;
    font-size: 15px;
    color: inherit;
    transition: all var(--transition-fast);
}

.trends-list-item:hover .trends-list-item-label {
    font-weight: 600;
}

.trends-list-item-growth {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition-fast);
    display: inline-block;
}

.trends-list-item:hover .trends-list-item-growth {
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* Trends Tags */
.trends-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 0;
}

.trends-tag {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    user-select: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: inline-block;
}

.trends-tag:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.trends-tag:active {
    transform: scale(0.98);
}

/* Chart Section */
.trends-chart-section {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.trends-chart-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 24px 0;
    color: var(--text-primary);
}

.trends-chart-container {
    height: 350px;
    position: relative;
}

@media (max-width: 768px) {
    .trends-chart-container {
        height: 300px;
    }
}

/* Dark Mode Adjustments */
[data-theme="dark"] .trends-list-item-growth {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
}

[data-theme="dark"] .trends-tags {
    gap: 12px;
}

[data-theme="dark"] .trends-chart-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger animation for cards */
.trends-card {
    animation: fadeInUp 0.6s ease-out;
}

.trends-card:nth-child(1) {
    animation-delay: 0s;
}

.trends-card:nth-child(2) {
    animation-delay: 0.1s;
}

/* Mobile Responsive Adjustments */
@media (max-width: 640px) {
    .trends-container {
        padding: 16px !important;
    }

    .trends-header h2 {
        font-size: 24px;
    }

    .trends-card {
        padding: 20px;
    }

    .trends-card-header {
        gap: 10px;
    }

    .trends-card-header span {
        font-size: 20px;
    }

    .trends-card-header h3 {
        font-size: 16px;
    }

    .trends-list-item-label {
        font-size: 14px;
    }

    .trends-tag {
        font-size: 13px;
        padding: 6px 12px;
    }

    .trends-chart-section {
        padding: 20px;
    }
}

.analytics-row {
    display: grid;
    gap: 24px;
}

.top-metrics {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.metric-card {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.metric-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-icon.blue {
    background: rgba(26, 115, 232, 0.1);
    color: #1a73e8;
}

.metric-icon.green {
    background: rgba(52, 168, 83, 0.1);
    color: #34a853;
}

.metric-icon.purple {
    background: rgba(161, 66, 244, 0.1);
    color: #a142f4;
}

.metric-icon.orange {
    background: rgba(244, 180, 0, 0.1);
    color: #f4b400;
}

.metric-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
}

.metric-value {
    display: block;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.charts-grid {
    grid-template-columns: 2fr 1fr;
}

@media (max-width: 1100px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    background: var(--bg-primary);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-actions button {
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: transparent;
    cursor: pointer;
}

.card-actions button.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
}

.chart-wrapper {
    flex: 1;
    min-height: 300px;
    position: relative;
}

.meta-grid {
    grid-template-columns: 1fr 1fr;
}

.meta-card {
    background: var(--bg-primary);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.topics-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px 0;
}

.topic-tag {
    padding: 6px 14px;
    background: var(--bg-tertiary);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
    cursor: pointer;
}

.topic-tag:hover {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.journal-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.journal-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.journal-name {
    font-size: 13px;
    font-weight: 500;
}

.journal-count {
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-blue);
    background: var(--primary-blue-light);
    padding: 2px 8px;
    border-radius: 4px;
}

.empty-state {
    color: var(--text-muted);
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

.filters-sidebar {
    display: none !important;
    /* Hidden from left */
}

.filters-sidebar::before {
    content: "QUICK FILTERS";
    display: block;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-blue);
    letter-spacing: 1px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-blue-light);
}

.filter-section {
    padding: 16px 0;
    margin-bottom: 0;
    border-bottom: 1px solid var(--border-light);
}

.filter-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.filter-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.filter-title svg {
    color: var(--text-muted);
}

.filter-chips {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
}

.filter-chips::-webkit-scrollbar {
    height: 4px;
}

.filter-chips::-webkit-scrollbar-track {
    background: transparent;
}

.filter-chips::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.filter-chip {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-chip:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.filter-chip.active {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

/* Sidebar Search */
.sidebar-search {
    margin-bottom: 24px;
}

.sidebar-search input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    transition: all 0.2s;
}

.sidebar-search input:focus {
    background: var(--bg-primary);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-focus);
    outline: none;
}

/* Custom Checkbox/Radio Styles */
.checkbox-filters,
.date-filter-options,
.advanced-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checkbox-filter,
.radio-option,
.checkbox-option {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: color 0.15s;
}

.checkbox-filter:hover,
.radio-option:hover,
.checkbox-option:hover {
    color: var(--primary-blue);
}

.checkbox-filter input,
.radio-option input,
.checkbox-option input {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary-blue);
}

.filter-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    outline: none;
}

.filter-select:focus {
    border-color: var(--primary-blue);
}

/* Advanced Options Specials */
.option-badge {
    margin-left: auto;
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    background: #e6fffa;
    color: #008767;
    border-radius: 4px;
    text-transform: uppercase;
}

.slider-option {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.slider-option label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.slider-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
}

.slider-label {
    font-size: 11px;
    color: var(--text-muted);
    min-width: 50px;
}

.slider-wrapper input[type="range"] {
    flex: 1;
    height: 4px;
    accent-color: var(--primary-blue);
}

.slider-value {
    font-size: 11px;
    color: var(--primary-blue);
    font-weight: 600;
    text-align: center;
}

/* Index Statistics */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.stat-icon {
    font-size: 20px;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Coming Soon Section */
.coming-soon-section {
    opacity: 0.9;
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    margin-left: auto;
    padding: 3px 10px;
    background: linear-gradient(135deg, var(--google-yellow), #f59e0b);
    color: #1a1a1a;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-full);
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.85;
        transform: scale(1.02);
    }
}

.coming-soon-content {
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border-color);
}

/* Results Area */
.results-area {
    min-width: 0;
    /* Prevent overflow */
}

.tab-content {
    /* display controlled by .tab-content at line 1803 and switchTab() */
    animation: fadeIn 0.3s ease;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
    gap: 40px;
    width: 100%;
}

.results-header::-webkit-scrollbar {
    height: 4px;
}

.results-info {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Result Card */
.result-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
    position: relative;
    border: 1px solid var(--border-color);
    margin-bottom: 28px;
    display: flex;
    gap: 20px;
}

.result-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue-light);
    transform: translateY(-2px);
}

.result-selection {
    display: flex;
    align-items: flex-start;
    padding-top: 4px;
}

.result-main {
    flex: 1;
    min-width: 0;
}

.result-title {
    font-size: 20px;
    color: var(--text-link);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 8px;
    display: block;
    line-height: 1.4;
    transition: color 0.2s;
}

.result-title:hover {
    text-decoration: underline;
    color: var(--primary-blue-hover);
}

.result-meta {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    line-height: 1;
}

.meta-source {
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-source.pubmed {
    background: #e1f5fe;
    color: #0288d1;
}

.meta-source.clinical-trial {
    background: #e8f5e9;
    color: #2e7d32;
}

.meta-source.google {
    background: #fff9c4;
    color: #fbc02d;
}

.meta-authors {
    color: var(--text-primary);
    font-weight: 500;
}

.meta-date {
    color: var(--text-muted);
}

.meta-type {
    color: #ef6c00;
    background: #fff3e0;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
}

.recent-badge {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-left: 8px;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.meta-separator {
    color: var(--border-color);
    font-size: 10px;
}

.result-snippet {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.result-action-btn,
.results-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.result-action-btn:hover,
.results-action-btn:hover {
    background: var(--bg-hover);
    border-color: var(--primary-blue-light);
    color: var(--primary-blue);
    transform: translateY(-1px);
}

.result-action-btn:active,
.results-action-btn:active {
    transform: translateY(0);
}

.results-save-all {
    background: var(--primary-blue-light) !important;
    border-color: var(--primary-blue) !important;
    color: var(--primary-blue) !important;
}

.results-save-all:hover {
    background: var(--primary-blue) !important;
    color: white !important;
}

.results-action-btn {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}

.header-icon-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary-blue);
}

.header-icon-btn:active {
    transform: scale(0.95);
}

.search-icon-btn {
    background: transparent;
    border: none;
    padding: 8px;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
}

.search-icon-btn:hover {
    background: var(--bg-secondary);
    color: var(--primary-blue);
}

.result-action-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.result-action-btn.primary {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
    border-color: transparent;
}

.result-action-btn.primary:hover {
    background: var(--primary-blue);
    color: white;
}

.result-action-btn.active {
    background: #fdf2f2;
    color: #d32f2f;
    border-color: #ffcdd2;
}

.result-score-badge {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
}

.result-score-badge svg {
    color: var(--primary-blue);
}

.results-actions-header {
    display: flex;
    gap: 12px;
}

mark {
    background: #fff9c4;
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

.dark-theme mark {
    background: rgba(255, 249, 196, 0.2);
    color: #ffd54f;
}

/* Sidebar Layout for Articles */
.articles-layout {
    display: flex;
    gap: 0;
    align-items: flex-start;
    min-height: calc(100vh - var(--header-height) - var(--nav-height));
}

.articles-main {
    flex: 1;
    min-width: 0;
    padding: 32px 48px;
    margin-left: 320px;
    /* Offset for the fixed sidebar */
}

/* Sidebar Quick Filters (Persistent Left Sidebar) */
.quick-filters {
    position: fixed !important;
    top: calc(var(--header-height) + var(--nav-height));
    left: 0;
    bottom: 0;
    width: 320px;
    flex-shrink: 0;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 0 !important;
    background: var(--bg-secondary) !important;
    /* Slightly distinct background */
    padding: 32px 24px !important;
    border-radius: 0;
    border-right: 2px solid var(--border-color);
    /* Thicker border */
    box-shadow: 4px 0 15px rgba(0, 0, 0, 0.05);
    /* Soft right shadow for depth */
    z-index: 100 !important;
    transition: all 0.3s ease;
    overflow-y: auto;
    cursor: default !important;
    user-select: auto !important;
}

.quick-filters.hidden {
    display: none !important;
}

.quick-filters.hidden+.articles-main {
    margin-left: 0;
}

.quick-filters.grabbing {
    cursor: default !important;
}

.show-sidebar-btn {
    position: fixed;
    left: 20px;
    top: calc(var(--header-height) + var(--nav-height) + 20px);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-secondary);
}

.show-sidebar-btn:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.show-sidebar-btn.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-20px);
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.sidebar-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 8px;
    border-radius: var(--radius-md);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle-btn:hover {
    background: var(--bg-tertiary);
    color: var(--google-red);
}

.quick-filter-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 8px 0;
}

.quick-filters-label {
    font-size: 15px;
    font-weight: 800;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 3px solid var(--primary-blue);
    /* Stronger indicator */
    display: flex;
    align-items: center;
    gap: 10px;
}

.quick-filters-label::before {
    content: '🔍';
    font-size: 18px;
}

.quick-filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    /* Slightly more gap */
}

.quick-filter-sublabel {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
    /* Higher contrast */
    text-transform: uppercase;
    letter-spacing: 0.8px;
    display: block !important;
    margin-bottom: 4px;
}

.quick-filter-divider {
    height: 1.5px;
    background: var(--border-color);
    margin: 16px 0;
    width: 100%;
    opacity: 0.6;
}

.quick-alpha-container {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-tertiary);
    padding: 10px;
    border-radius: var(--radius-md);
}

.quick-alpha-text {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
}

#quick-alpha-slider {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    border-radius: var(--radius-full);
    outline: none;
    width: auto !important;
}

.quick-stats-badge {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 6px;
    font-size: 12px;
}

.badge-label {
    color: var(--text-muted);
    font-weight: 500;
}

.badge-value {
    color: var(--primary-blue);
    font-weight: 700;
}

.quick-filter-clear {
    margin-top: 12px;
    width: 100%;
    padding: 10px;
    background: rgba(255, 75, 43, 0.1);
    color: #FF4B2B;
    border: 1px solid rgba(255, 75, 43, 0.2);
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.quick-filter-clear:hover {
    background: #FF4B2B;
    color: white;
}

.dark-theme .quick-filters {
    background: rgba(30, 41, 59, 0.85);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

#quick-alpha-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--primary-blue);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border: 2px solid white;
    transition: all 0.2s;
}

#quick-alpha-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background: var(--primary-blue-dark);
}

.dark-theme #quick-alpha-slider {
    background: rgba(255, 255, 255, 0.1);
}

.quick-filter-chip {
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    /* Slightly thicker border */
    border-radius: var(--radius-md);
    /* Modern rounded-rect instead of pill */
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    box-shadow: var(--shadow-sm);
}

.quick-filter-chip:hover {
    background: var(--primary-blue-light);
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.quick-filter-chip.active {
    background: var(--primary-blue);
    color: white;
    border-color: var(--primary-blue);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transform: translateY(0);
}



.helper-classes {
    display: none;
}

.hidden {
    display: none !important;
}

.text-muted {
    color: var(--text-muted);
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 1fr;
        padding: 0 24px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
        --nav-height: 100px;
        /* Stacked tabs */
    }

    .scholar-header {
        padding: 0 12px;
    }

    .logo-text {
        display: none;
    }

    .header-search {
        margin: 0 8px;
    }

    .quick-filters {
        display: none;
        /* Hide quick filters on mobile to save space */
    }

    .scholar-nav {
        height: auto;
        padding-bottom: 8px;
    }

    .nav-tabs {
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-container {
        grid-template-columns: 1fr;
        padding: 0;
        margin-top: 140px;
    }

    .filters-sidebar {
        position: fixed;
        top: 0;
        left: -300px;
        width: 280px;
        height: 100vh;
        z-index: 2000;
        transition: left var(--transition-normal);
        border-radius: 0;
        box-shadow: var(--shadow-xl);
    }

    .filters-sidebar.show-mobile {
        left: 0;
    }

    .results-area {
        padding: 0 16px;
    }

    /* Mobile Filter Toggle Button */
    .mobile-filter-toggle {
        display: flex;
        position: fixed;
        bottom: 24px;
        left: 50%;
        transform: translateX(-50%);
        background: var(--text-primary);
        color: var(--bg-primary);
        padding: 12px 24px;
        border-radius: var(--radius-full);
        box-shadow: var(--shadow-lg);
        z-index: 1000;
        border: none;
        font-weight: 500;
        align-items: center;
        gap: 8px;
        cursor: pointer;
    }
}

/* Ensure mobile toggle is hidden on desktop */
.mobile-filter-toggle {
    display: none;
}

/* ==========================================
   UPDATED FOOTER STYLES (Professional)
   ========================================== */
.scholar-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    margin-top: auto;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 16px 0;
    /* Reduced padding for fixed footer */
    font-size: 13px;
    color: var(--text-secondary);
    backdrop-filter: blur(8px);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    /* Left - Center - Right */
    align-items: center;
    gap: 32px;
}

/* Left: Logo */
.footer-left {
    display: flex;
    justify-content: flex-start;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
    text-decoration: none;
}

.footer-logo svg {
    width: 24px;
    height: 24px;
}

/* Center: Tech Stack */
.footer-center {
    text-align: center;
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* Right: Status & Credit */
.footer-right {
    display: flex;
    flex-direction: row;
    /* Horizontal alignment */
    align-items: center;
    gap: 16px;
    /* Space between status and credit */
    justify-content: flex-end;
}

/* Status Indicator Pill */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
    /* Prevent wrapping */
}

.status-indicator:hover {
    border-color: var(--text-muted);
    box-shadow: var(--shadow-md);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.status-dot.online {
    background-color: var(--google-green);
    box-shadow: 0 0 6px rgba(52, 168, 83, 0.4);
}

.status-dot.offline {
    background-color: var(--google-red);
}

.creator-credit {
    font-size: 13px;
    color: var(--text-secondary);
}

.creator-credit strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Responsive Footer */
@media (max-width: 900px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 24px;
        text-align: center;
        padding: 0 16px;
    }

    .footer-left,
    .footer-center,
    .footer-right {
        justify-content: center;
        align-items: center;
        text-align: center;
    }

    .footer-right {
        align-items: center;
    }
}

/* ==========================================
   MODAL STYLES (Restored)
   ========================================== */
.modal {
    display: none;
    /* Hidden by default */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.modal.open {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--bg-primary);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    /* Prevent overflow on small screens */
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalSlideUp 0.3s ease-out;
}

.modal-content.modal-large {
    max-width: 900px;
}

.modal-content.modal-small {
    max-width: 400px;
}

@keyframes modalSlideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ==========================================
   SUGGESTED QUERIES UI
   ========================================== */
.suggested-queries {
    display: grid;
    grid-template-columns: repeat(2, minmax(320px, 380px));
    /* Larger query cards */
    justify-content: center;
    gap: 32px;
    width: fit-content;
    margin: 48px auto 0;
    padding: 0 32px;
}

.query-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 24px;
    width: 100%;
    /* Fill grid cell */
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
}

.query-card:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    background: var(--bg-hover);
}

.query-card-icon {
    width: 44px;
    height: 44px;
    background: rgba(var(--google-blue-rgb), 0.1);
    color: var(--primary-blue);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: transform var(--transition-normal);
}

.query-card:hover .query-card-icon {
    transform: scale(1.1);
}

.query-card-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.query-card-tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: fit-content;
}

.query-card-desc {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@media (max-width: 768px) {
    .suggested-queries {
        grid-template-columns: 1fr;
        width: 100%;
        padding: 0 16px;
    }

    .query-card {
        padding: 16px;
    }
}

/* Zen Mode (Focus Mode) */
body.zen-mode .scholar-header,
body.zen-mode .scholar-nav,
body.zen-mode .quick-filters,
body.zen-mode .scholar-footer {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-20px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body.zen-mode .scholar-main {
    margin-top: 0;
    padding-top: 40px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

body.zen-mode .zen-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 5000;
    opacity: 1 !important;
    pointer-events: auto !important;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transform: none !important;
}

body.zen-mode .main-container {
    max-width: 900px;
    margin: 0 auto;
}

/* Publication Trends Chart */
.chart-section {
    padding: 60px 40px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-light);
}

.chart-section h3 {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.chart-container {
    max-width: 1000px;
    margin: 0 auto;
    background: var(--bg-primary);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.chart-bar-container {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 300px;
    gap: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.chart-bar {
    flex: 1;
    background: linear-gradient(to top, var(--primary-blue), #64b5f6);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    height: var(--height);
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
}

.chart-bar:hover {
    filter: brightness(1.1);
    transform: scaleX(1.05);
}

.chart-bar.active {
    background: linear-gradient(to top, #1565c0, var(--primary-blue));
    box-shadow: 0 0 20px rgba(26, 115, 232, 0.3);
}

.chart-bar::after {
    content: attr(data-count);
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    opacity: 0;
    transition: opacity 0.2s;
}

.chart-bar:hover::after {
    opacity: 1;
}

.chart-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 16px;
    padding: 0 5px;
}

.chart-labels span {
    flex: 1;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.modal-header h2 {
    font-size: 18px;
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Form Styles inside Modals */
.form-group,
.filter-group {
    margin-bottom: 16px;
}

.form-group label,
.filter-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.filter-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
}

.form-row,
.filter-row {
    display: flex;
    gap: 16px;
}

.checkbox-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Modal Buttons */
.modal-btn {
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.modal-btn.primary,
.modal-btn-primary {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.2);
}

.modal-btn.primary:hover,
.modal-btn-primary:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(26, 115, 232, 0.3);
}

.modal-btn.secondary,
.modal-btn-secondary {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.modal-btn.secondary:hover,
.modal-btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--primary-blue);
}

.full-width {
    width: 100%;
}

.google-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 500;
    padding: 12px;
    width: 100%;
    transition: all 0.2s;
}

.google-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--text-muted);
    box-shadow: var(--shadow-sm);
}

.google-btn img {
    width: 20px;
}

.auth-divider {
    text-align: center;
    margin: 16px 0;
    position: relative;
    color: var(--text-muted);
    font-size: 12px;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--border-light);
}

.auth-divider::before {
    left: 0;
}

.auth-divider::after {
    right: 0;
}

/* Help Modal Specifics */
.help-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-secondary);
    padding: 0 24px;
    gap: 16px;
    overflow-x: auto;
}

.help-tab {
    padding: 12px 0;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
}

.help-tab.active {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}

.help-content {
    margin-top: 16px;
}

.help-section {
    display: none;
}

.help-section.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

.help-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 16px;
}

.help-card h4 {
    margin-bottom: 12px;
    color: var(--text-primary);
    font-size: 14px;
}

.help-card ol,
.help-card ul {
    padding-left: 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.help-card li {
    margin-bottom: 6px;
}

/* Shortcuts Grid */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 13px;
}

kbd {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 11px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.1);
}

/* Article Modal special override */
.article-modal-overlay {
    display: none;
    /* Hidden by default */
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.article-modal-overlay.open {
    display: flex;
}

.article-modal {
    background: var(--bg-primary);
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.article-modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
}

.article-modal-title {
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
    line-height: 1.4;
    max-width: 90%;
}

.article-modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    transition: all var(--transition-fast);
}

.article-modal-close:hover {
    background: var(--bg-hover);
    color: var(--google-red);
}

.article-modal-share {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    transition: all var(--transition-fast);
    margin-left: auto;
    margin-right: 8px;
}

.article-modal-share:hover {
    background: var(--bg-hover);
    color: var(--primary-blue);
}

.article-modal-body {
    flex: 1;
    overflow-y: auto;
    background: var(--bg-primary);
}

.modal-tabs {
    display: flex;
    gap: 12px;
    padding: 16px 24px;
    background: var(--bg-secondary);
    border-bottom: 3px solid var(--border-light);
}

.modal-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.modal-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.modal-tab.active {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.25);
}

.modal-tab svg {
    opacity: 0.9;
}

.modal-tab-content {
    display: none;
    padding: 30px;
    animation: fadeIn 0.3s ease;
}

.modal-tab-content.active {
    display: block;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-title svg {
    color: var(--primary-blue);
}

.article-abstract {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

/* Metadata Grid Improvements */
.article-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--primary-blue-light);
    border-radius: var(--radius-lg);
    border-left: 5px solid var(--primary-blue);
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.meta-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-secondary);
    font-weight: 700;
}

.meta-label svg {
    color: var(--primary-blue);
}

.meta-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
}

.meta-value.source-pill {
    display: inline-flex;
    padding: 4px 12px;
    background: white;
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
    border-radius: var(--radius-full);
    font-size: 12px;
    width: fit-content;
    text-transform: uppercase;
    font-weight: 800;
}

[data-theme="dark"] .meta-value.source-pill {
    background: var(--bg-tertiary);
}

.article-modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: var(--bg-primary);
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.fulltext-placeholder {
    padding: 40px;
    text-align: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border-color);
}

.fulltext-header h3 {
    margin-bottom: 8px;
    color: var(--text-primary);
}

.fulltext-cta {
    margin-top: 24px;
}

.welcome-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    margin: 80px auto;
    /* Increased margin */
    max-width: 1200px;
    /* Increased from 1000px */
    padding: 40px 20px;
    animation: fadeIn 0.5s ease;
}

.welcome-icon {
    color: var(--primary-blue);
    margin-bottom: 24px;
    opacity: 0.8;
}

.welcome-state h2 {
    font-size: 28px;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.welcome-state p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.keyboard-hint {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--text-muted);
}

.keyboard-hint kbd {
    margin: 0 4px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    font-family: inherit;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.15);
}

/* Selection Toolbar */
.selection-toolbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 24px;
    background: var(--primary-blue);
    color: white;
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease;
}

.selection-toolbar.hidden {
    display: none !important;
}

.selection-count {
    font-weight: 600;
    font-size: 14px;
}

.selection-actions {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.selection-actions button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    color: white;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.selection-actions button:hover {
    background: rgba(255, 255, 255, 0.3);
}

.selection-actions button.cancel-btn {
    background: transparent;
    border-color: transparent;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-top: 40px;
    padding: 20px;
}

.page-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.page-btn:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--text-muted);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-info {
    font-size: 14px;
    color: var(--text-secondary);
}

#current-page {
    font-weight: 700;
    color: var(--primary-blue);
}

/* Reveal Animation */
.reveal-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal-item.revealed {
    opacity: 1;
    transform: translateY(0);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ==========================================
   ENHANCED ARTICLES TAB FEATURES
   ========================================== */

/* Compact View Styles */
.results-list.compact .result-card {
    padding: 8px 16px;
    margin-bottom: 4px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 16px;
}

.results-list.compact .result-selection {
    align-self: center;
    margin-top: 0;
}

.results-list.compact .result-snippet,
.results-list.compact .result-score-badge {
    display: none;
}

.results-list.compact .result-title {
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60%;
}

.results-list.compact .result-meta {
    margin-bottom: 0;
    font-size: 12px;
}

.results-list.compact .result-actions {
    margin-top: 0;
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.2s;
}

.results-list.compact .result-card:hover .result-actions {
    opacity: 1;
}

/* Results Toolbar */
.results-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding: 4px 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
}

.results-toolbar::-webkit-scrollbar {
    height: 4px;
}

.results-filter-wrapper {
    position: relative;
    flex: 1;
}

.results-filter-input {
    width: 100%;
    height: 38px;
    padding: 0 12px 0 36px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
    color: var(--text-primary);
    outline: none;
    transition: all 0.2s;
}

.results-filter-input:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--primary-blue-light);
}

.results-filter-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.toolbar-btn {
    height: 38px;
    padding: 0 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.toolbar-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.toolbar-btn.active {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.toolbar-btn svg {
    flex-shrink: 0;
}

/* Results Toggle (Grid/List style buttons) */
.view-toggle-group {
    display: flex;
    background: var(--bg-tertiary);
    padding: 3px;
    border-radius: 8px;
    gap: 2px;
}

.view-btn {
    padding: 6px 10px;
    border: none;
    background: transparent;
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.view-btn:hover {
    color: var(--text-primary);
}

.view-btn.active {
    background: var(--bg-primary);
    color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

/* History Modal / Popup */
.history-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 300px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    margin-top: 8px;
    overflow: hidden;
    animation: fadeIn 0.15s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   CITATION MODAL
   ========================================== */
.citation-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
    padding: 4px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.citation-tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.3px;
}

.citation-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.citation-tab.active {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 2px 8px rgba(26, 115, 232, 0.25);
}

.citation-content {
    position: relative;
}

.citation-content pre,
#citation-text {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-wrap: break-word;
    margin-bottom: 16px;
    max-height: 200px;
    overflow-y: auto;
}

.copy-citation-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--primary-blue);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(26, 115, 232, 0.2);
}

.copy-citation-btn:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.copy-citation-btn:active {
    transform: translateY(0);
}

/* ==========================================
   KEYBOARD SHORTCUTS MODAL
   ========================================== */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.shortcut-item:hover {
    border-color: var(--primary-blue);
    background: var(--bg-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(26, 115, 232, 0.08);
}

.shortcut-item span {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 2px 8px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-bottom-width: 2px;
    border-radius: 6px;
    font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-primary);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    white-space: nowrap;
}

.shortcut-category {
    grid-column: 1 / -1;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-blue);
    padding: 8px 0 4px;
    border-bottom: 1px solid var(--border-light);
    margin-top: 8px;
}

.shortcut-category:first-child {
    margin-top: 0;
}

/* ==========================================
   HELP MODAL
   ========================================== */
.help-tabs {
    display: flex;
    gap: 8px;
    padding: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    position: relative;
    z-index: 10;
}

.help-tab {
    padding: 10px 20px;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    position: relative;
    z-index: 11;
    pointer-events: auto;
    user-select: none;
}

.help-tab:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.help-tab.active {
    background: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.help-content {
    min-height: 300px;
}

.help-section {
    display: none;
    animation: fadeIn 0.2s ease;
}

.help-section.active {
    display: block;
}

.help-section h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.help-section>p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.help-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: 16px;
    transition: all var(--transition-fast);
}

.help-card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 2px 12px rgba(26, 115, 232, 0.08);
}

.help-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.help-card ol,
.help-card ul {
    padding-left: 20px;
    margin: 0;
}

.help-card li {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.8;
    padding-left: 4px;
}

.help-card li strong {
    color: var(--text-primary);
}

.help-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 8px;
}

.help-card code {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SFMono-Regular', 'Consolas', 'Liberation Mono', monospace;
    font-size: 12px;
    color: var(--primary-blue);
}

/* FAQ Items */
.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: 12px;
    transition: all var(--transition-fast);
}

.faq-item:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 2px 12px rgba(26, 115, 232, 0.08);
}

.faq-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.faq-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================
   CITATION MODAL STYLES
   ========================================== */
.citation-modal-container {
    max-width: 700px;
    width: 90%;
}

.citation-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 0;
}

.citation-tab {
    background: transparent;
    border: none;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
    position: relative;
}

.citation-tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.citation-tab.active {
    color: var(--primary-blue);
    border-bottom-color: var(--primary-blue);
}

.citation-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.citation-text {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-primary);
    min-height: 120px;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.citation-text:empty::before {
    content: 'Select an article to generate citation...';
    color: var(--text-muted);
    font-style: italic;
}

/* Dark theme adjustments */
[data-theme="dark"] .citation-text {
    background: var(--bg-tertiary);
}

/* Responsive */
@media (max-width: 768px) {
    .citation-modal-container {
        width: 95%;
        max-width: none;
    }

    .citation-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .citation-tab {
        padding: 10px 16px;
        font-size: 13px;
        white-space: nowrap;
    }

    .citation-text {
        font-size: 13px;
        padding: 16px;
    }
}


/* ==========================================
   KEYBOARD SHORTCUTS MODAL STYLES
   ========================================== */
.shortcuts-modal-container {
    max-width: 800px;
    width: 90%;
}

.shortcuts-modal-body {
    padding: 24px;
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.shortcut-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.shortcut-category h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.shortcut-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

.shortcut-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.shortcut-keys {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.shortcut-item kbd {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 4px 8px;
    font-family: 'SFMono-Regular', 'Consolas', monospace;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 2px 0 var(--border-color);
    min-width: 28px;
    text-align: center;
}

.shortcut-item span {
    font-size: 14px;
    color: var(--text-secondary);
    margin-left: 12px;
}

/* Dark theme adjustments */
[data-theme="dark"] .help-card,
[data-theme="dark"] .shortcut-category {
    background: var(--bg-tertiary);
}

[data-theme="dark"] kbd {
    box-shadow: 0 2px 0 var(--border-light);
}

/* Responsive */
@media (max-width: 768px) {

    .help-modal-container,
    .shortcuts-modal-container {
        width: 95%;
        max-width: none;
    }

    .help-modal-body,
    .shortcuts-modal-body {
        padding: 16px;
    }

    .shortcuts-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .shortcut-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .shortcut-item span {
        margin-left: 0;
    }
}

/* ==========================================
   NOTIFICATION ENHANCEMENTS
   ========================================== */
.notification-icon {
    font-size: 18px;
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: 50%;
}



/* ==========================================
   GITHUB BUTTON STYLING
   ========================================== */
.github-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.github-btn:hover {
    transform: translateY(-2px);
    background: var(--bg-hover);
}

.github-btn svg {
    transition: all var(--transition-fast);
}

.github-btn:hover svg {
    transform: scale(1.1);
}

/* Dark theme GitHub icon */
[data-theme="dark"] .github-btn svg {
    fill: var(--text-primary);
}

.github-btn:active {
    transform: translateY(0);
}

/* ==========================================
   FOOTER STYLING
   ========================================== */
.scholar-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    margin-top: auto;
    font-weight: 700;
    font-family: 'Google Sans', 'Product Sans', 'Roboto', sans-serif;
    font-size: 16px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 16px;
    font-weight: 700;
}

.footer-center {
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    font-size: 16px;
    grid-column: 2;
    justify-self: center;
    white-space: nowrap;
}

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
    justify-self: start;
}

.footer-right {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-self: end;
}

.footer-brand-container {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-brand-top {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 16px;
    color: var(--primary-blue);
}

.footer-brand-tagline {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-left: 28px;
    /* Aligns with text above (icon width + gap) */
}

.footer-text {
    font-size: 16px;
    color: var(--text-primary);
    margin: 0;
}

.footer-text strong {
    color: var(--primary-blue);
    font-weight: 700;
}

.footer-subtext {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
}



.footer-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition-fast);
    padding: 6px 12px;
    border-radius: var(--radius-md);
}

.footer-link:hover {
    color: var(--primary-blue);
    background: var(--bg-hover);
}

.footer-link.github-link {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.footer-link.github-link:hover {
    border-color: var(--primary-blue);
    background: var(--bg-hover);
}

.footer-link svg {
    transition: transform var(--transition-fast);
}

.footer-link:hover svg {
    transform: scale(1.1);
}

.footer-divider {
    color: var(--border-color);
    font-size: 14px;
}

/* New Footer Styles replacing inline styles */
.footer-attribution {
    margin-right: 20px;
    font-weight: 700;
    font-size: 15px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.attribution-name {
    color: var(--primary-blue);
}

.footer-feedback-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: #25d366;
    color: white !important;
    border-radius: 24px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    margin-right: 20px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.footer-feedback-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 14px;
    color: var(--text-secondary);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--google-yellow);
    display: inline-block;
}

.status-dot.connected {
    background-color: #34A853;
    box-shadow: 0 0 0 2px rgba(52, 168, 83, 0.2);
}

.status-dot.error {
    background-color: #EA4335;
}

/* Dark theme footer */
[data-theme="dark"] .scholar-footer {
    background: var(--bg-primary);
    border-top-color: var(--border-light);
}

[data-theme="dark"] .footer-link.github-link {
    background: var(--bg-secondary);
}

/* Responsive footer */
@media (max-width: 768px) {
    .footer-container {
        display: flex;
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .footer-center {
        white-space: normal;
    }

    .footer-left {
        align-items: center;
    }

    .footer-right {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* ==========================================
   NOTIFICATION SETTINGS & TOGGLES
   ========================================== */
.settings-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.settings-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toggle-container {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.toggle-slider {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 20px;
    background-color: var(--border-color);
    border-radius: 20px;
    transition: .4s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: .4s;
}

input:checked+.toggle-slider {
    background-color: var(--primary-blue);
}

input:checked+.toggle-slider:before {
    transform: translateX(20px);
}

input[type="checkbox"] {
    display: none;
}

.settings-divider {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin: 20px 0 12px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-light);
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
    display: block;
    width: 16px;
    height: 16px;
}

/* Toast Container Enhancement */
.toast-container {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column-reverse;
    gap: 10px;
}

.toast {
    padding: 12px 18px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
    border-left: 4px solid var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    min-width: 250px;
    max-width: 400px;
    animation: slideInLeft 0.3s ease;
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left-color: #34a853;
}

.toast.error {
    border-left-color: #ea4335;
}

.toast.warning {
    border-left-color: #fbbc05;
}

.toast.info {
    border-left-color: var(--primary-blue);
}

/* Ensure body has flex layout for footer to stick to bottom */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
}

/* ==========================================
   RESEARCH PLATFORM ENHANCEMENTS
   ========================================== */

.welcome-header {
    margin-bottom: 40px;
    text-align: center;
}

.welcome-header h2 {
    font-size: 42px;
    /* Increased from 32px */
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 20px;
    letter-spacing: -1px;
}

.welcome-header p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 12px auto 0;
    line-height: 1.6;
}




.suggested-queries-wrapper {
    max-width: 1000px;
    margin: 0 auto 32px;
    padding: 0 20px;
    text-align: center;
}

.suggested-queries-wrapper h3 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.keyboard-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 13px;
    background: var(--bg-tertiary);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    width: fit-content;
    margin: 0 auto;
}

.keyboard-hint kbd {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 1px 6px;
    font-family: inherit;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-primary);
}

.keyboard-hint .dot {
    opacity: 0.3;
}

/* Nav Tab Enhancement */
.nav-tab .tab-badge {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 6px;
    font-weight: 800;
    text-transform: uppercase;
    margin-left: 8px;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.tab-badge-beta {
    background: linear-gradient(135deg, #FF4B2B, #FF416C);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
}

.tab-badge-testing {
    background: #fff3e0;
    color: #e65100;
    border: 1px solid rgba(230, 81, 0, 0.2);
}



.app-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 24px 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-powered-by {
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.footer-divider {
    margin: 0 8px;
    color: var(--border-color);
    opacity: 0.5;
}

.attribution-name {
    font-weight: 600;
    color: var(--primary-blue);
}

/* ==========================================
   RESPONSIVENESS & BUG FIXES
   ========================================== */

/* Fix sidebar filter wrapping & add scroll */
.filter-chips,
.quick-filter-group {
    display: flex !important;
    flex-wrap: nowrap !important;
    overflow-x: auto !important;
    gap: 10px !important;
    padding-bottom: 8px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
}

.filter-chip,
.quick-filter-chip {
    flex-shrink: 0 !important;
    white-space: nowrap !important;
}

/* Header Responsiveness */
@media (max-width: 1350px) {
    .header-beta-tag {
        display: none !important;
    }
}

@media (max-width: 1100px) {
    .header-stats {
        display: none !important;
    }
}

@media (max-width: 900px) {
    .header-search {
        max-width: none !important;
    }

    .logo-text {
        display: none !important;
    }
}

@media (max-width: 600px) {
    .scholar-header {
        padding: 0 8px;
        gap: 8px;
    }

    .header-icon-btn:not(.notification-btn):not(.reading-list-btn) {
        display: none !important;
    }
}

/* ==========================================
   MAVERICK INSIGHT STYLES
   ========================================== */
.maverick-insight-container {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--primary-blue-light) 100%);
    border: 1px solid var(--primary-blue);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-xl), 0 0 20px rgba(26, 115, 232, 0.15);
    position: relative;
    overflow: hidden;
    animation: slideInDown 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.maverick-insight-container::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(26, 115, 232, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.insight-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(26, 115, 232, 0.1);
    position: relative;
    z-index: 1;
}

.insight-logo {
    font-size: 24px;
    background: white;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--primary-blue-light);
}

.insight-title-area {
    display: flex;
    flex-direction: column;
}

.insight-label {
    font-size: 11px;
    font-weight: 800;
    color: var(--primary-blue);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.insight-badge {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.insight-controls {
    margin-left: auto;
}

.insight-close-btn {
    background: transparent;
    border: none;
    font-size: 24px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.insight-close-btn:hover {
    color: var(--google-red);
}

.insight-body {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
    margin-bottom: 16px;
}

.insight-body strong {
    color: var(--primary-blue);
}

.insight-sources-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-color);
}

.insight-source-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    text-decoration: none;
    transition: all 0.2s;
}

.insight-source-chip:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.maverick-insight-container.hidden {
    display: none;
}

/* ==========================================
   MODERNIZED HEADER ACTIONS & MENUS
   ========================================== */
.header-action-menu {
    position: relative;
    display: inline-block;
}

.menu-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 220px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 0 4px 12px rgba(0, 0, 0, 0.1);
    padding: 8px;
    z-index: 2000;
    animation: menuFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] .menu-dropdown {
    border-color: rgba(255, 255, 255, 0.15);
    background: #2d2e30;
}

@keyframes menuFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.menu-dropdown.hidden {
    display: none !important;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 10px 12px;
    background: transparent !important;
    border: none !important;
    border-radius: var(--radius-md) !important;
    color: var(--text-primary) !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    text-decoration: none !important;
    transition: all 0.2s !important;
    text-align: left !important;
}

.menu-item:hover {
    background: var(--bg-hover) !important;
    color: var(--primary-blue) !important;
}

.menu-item svg {
    color: var(--text-muted);
}

.menu-item:hover svg {
    color: var(--primary-blue);
}

.menu-divider {
    height: 1px;
    background: var(--border-light);
    margin: 6px 0;
}

/* Glassmorphism Enhancement */
.glass-panel {
    background: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
}

[data-theme="dark"] .glass-panel {
    background: rgba(32, 33, 36, 0.8) !important;
}

/* Visible BETA badge */
.tab-badge-beta {
    display: inline-flex !important;
}

.header-beta-tag {
    display: inline-flex !important;
}

/* Insight Loading State */
.insight-loading {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.insight-loading-line {
    height: 14px;
    background: rgba(26, 115, 232, 0.05);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.insight-loading-line::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(90deg, transparent, rgba(26, 115, 232, 0.1), transparent);
    animation: insight-shimmer 1.5s infinite;
}

@keyframes insight-shimmer {
    0% {
        transform: translateX(-100%);
    }

    100% {
        transform: translateX(100%);
    }
}

/* Maverick Insight Markdown Styling */
.insight-body {
    line-height: 1.7;
    color: var(--text-primary);
}

.insight-body strong {
    font-weight: 700;
    color: var(--primary-blue);
}

.insight-body em {
    font-style: italic;
    color: var(--text-secondary);
}

.insight-body code.inline-code {
    background: var(--bg-secondary);
    padding: 2px 5px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
    border: 1px solid var(--border-light);
}

.insight-body ul {
    margin: 12px 0 12px 20px;
    padding: 0;
    list-style-type: square;
}

.insight-body li {
    margin-bottom: 8px;
}

.insight-body hr {
    margin: 16px 0;
    border: none;
    border-top: 1px solid var(--border-light);
}

/* Intelligence Modal */
.intelligence-modal {
    max-width: 800px !important;
}

.intelligence-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 10px 0;
}

.intel-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.intel-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
    background: var(--bg-primary);
}

.intel-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.intel-text h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.intel-text p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

@media (max-width: 600px) {
    .intelligence-grid {
        grid-template-columns: 1fr;
    }
}



/* ==========================================
   MAVERICK FLOATING CHAT RESIZER
   ========================================== */
.chat-resizer {
    position: absolute;
    width: 20px;
    height: 20px;
    top: -5px;
    left: -5px;
    cursor: nwse-resize;
    z-index: 10001;
    background: transparent;
}

.chat-resizer::after {
    content: '';
    position: absolute;
    top: 5px;
    left: 5px;
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--primary-blue);
    border-left: 2px solid var(--primary-blue);
    opacity: 0.3;
    transition: opacity 0.2s;
}

.maverick-floating-chat:hover .chat-resizer::after {
    opacity: 1;
}

.maverick-floating-chat.resizing {
    transition: none !important;
}

/* ==========================================
   FLOATING TELEGRAM CHAT BUTTON
   ========================================== */
.floating-chat-button {
    position: fixed;
    bottom: 80px;
    right: 24px;
    z-index: 999;
    display: none;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: linear-gradient(135deg, #0088cc 0%, #006ba3 100%);
    color: white;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 136, 204, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    font-size: 14px;
    user-select: none;
    border: none;
    outline: none;
    pointer-events: auto;
}

.floating-chat-button.visible {
    display: flex;
}

.floating-chat-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 136, 204, 0.6);
}

.floating-chat-button:active {
    transform: translateY(-2px);
}

.floating-chat-button:focus {
    outline: 2px solid rgba(255, 255, 255, 0.5);
    outline-offset: 2px;
}

.floating-chat-button svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.chat-button-label {
    white-space: nowrap;
}

/* Mobile responsive */
@media (max-width: 640px) {
    .floating-chat-button {
        bottom: 70px;
        right: 16px;
        padding: 10px 12px;
        font-size: 12px;
    }

    .chat-button-label {
        display: none;
    }

    .floating-chat-button svg {
        width: 20px;
        height: 20px;
    }
}
/* Scheduled Actions Styles */
.scheduler-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.scheduler-list {
    max-height: 250px;
    overflow-y: auto;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
}

.scheduler-item {
    padding: 12px;
    border-bottom: 1px solid var(--border-light);
    transition: background 0.2s;
}

.scheduler-item:last-child {
    border-bottom: none;
}

.scheduler-item:hover {
    background: var(--bg-secondary);
}

.scheduler-add-form .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.scheduler-add-form input,
.scheduler-add-form select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
}

.scheduler-add-form input:focus {
    border-color: var(--primary-blue);
    outline: none;
    box-shadow: 0 0 0 2px var(--primary-blue-light);
}

.empty-state {
    padding: 20px;
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    font-size: 14px;
}