:root {
    /* -------------------------------------------------------------------------
       DESIGN TOKENS - MATERIAL DESIGN 3 (Dark Mode Default)
       Theme: Technical Luxury (Black & Gold)
       ------------------------------------------------------------------------- */

    /* Primary Palette - Gold/Amber */
    --md-sys-color-primary: #E6C275;
    /* Richer Gold */
    --md-sys-color-on-primary: #422F0E;
    --md-sys-color-primary-container: #5C451E;
    /* Warm Brown (No Olive) */
    --md-sys-color-on-primary-container: #FFE1A8;

    /* Secondary Palette - Silver/Platinum */
    --md-sys-color-secondary: #CCC6B6;
    --md-sys-color-on-secondary: #333026;
    --md-sys-color-secondary-container: #4A463B;
    --md-sys-color-on-secondary-container: #E8E2D2;

    /* Tertiary Palette - Bronze/Tech Accent */
    --md-sys-color-tertiary: #A6C8FF;
    /* Tech Blue for accents */
    --md-sys-color-on-tertiary: #003061;
    --md-sys-color-tertiary-container: #004689;
    --md-sys-color-on-tertiary-container: #D5E3FF;

    /* Error */
    --md-sys-color-error: #FFB4AB;
    --md-sys-color-on-error: #690005;
    --md-sys-color-error-container: #93000A;
    --md-sys-color-on-error-container: #FFDAD6;

    /* Surfaces - Warm Dark Brown */
    --md-sys-color-background: #12100E;
    --md-sys-color-on-background: #EAE1D9;

    --md-sys-color-surface: #12100E;
    --md-sys-color-on-surface: #EAE1D9;
    --md-sys-color-on-surface-variant: #C9C0B5;
    /* Warm taupe text */

    /* Surface Containers (Elevation replacement) - Brown tinted */
    --md-sys-color-surface-container-lowest: #0D0B09;
    --md-sys-color-surface-container-low: #1C1915;
    --md-sys-color-surface-container: #231F1B;
    --md-sys-color-surface-container-high: #2E2822;
    --md-sys-color-surface-container-highest: #3A332B;

    /* Gradients */
    --gradient-surface: radial-gradient(circle at top right, #3E3224, var(--md-sys-color-background) 70%);

    /* Outlines - Warm */
    --md-sys-color-outline: #998F82;
    --md-sys-color-outline-variant: #4A433A;

    /* Typography - Google Sans / Outfit */
    --font-family-base: 'Google Sans', 'Outfit', sans-serif;
    --font-family-mono: 'Share Tech Mono', monospace;

    /* Layout & Shapes - Expressive */
    --sidebar-width: 320px;
    /* Wider for expressive feel */
    --header-height: 80px;
    /* Taller header */

    --shape-corner-xs: 4px;
    --shape-corner-s: 8px;
    --shape-corner-m: 12px;
    --shape-corner-l: 16px;
    --shape-corner-xl: 18px;
    /* Standard MD3 Container */
    --shape-corner-full: 1000px;
    /* Pill */

    --specs-width: 180px;

    /* Animation & Motion - MD3 Expressive */
    --motion-duration-short: 150ms;
    --motion-duration-medium: 300ms;
    --motion-duration-long: 500ms;
    --motion-easing-standard: cubic-bezier(0.2, 0.0, 0, 1.0);
    --motion-easing-emphasized: cubic-bezier(0.2, 0.0, 0, 1.0);
    --motion-easing-decelerate: cubic-bezier(0.0, 0.0, 0.2, 1.0);

    /* Spacing Scale */
    --spacing-xs: 4px;
    --spacing-s: 8px;
    --spacing-m: 16px;
    --spacing-l: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Mobile handling */
    -webkit-tap-highlight-color: transparent;
}

body.light-mode {
    /* -------------------------------------------------------------------------
       Theme: Technical Elegance (Cream & Deep Navy)
       ------------------------------------------------------------------------- */

    /* Primary - Deep Copper/Bronze */
    --md-sys-color-primary: #8F4E00;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #FFE0C4;
    --md-sys-color-on-primary-container: #2E1500;

    /* Secondary - Steel Blue */
    --md-sys-color-secondary: #535F70;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-secondary-container: #D7E3F7;
    --md-sys-color-on-secondary-container: #101C2B;

    /* Tertiary - Deep Blue */
    --md-sys-color-tertiary: #0061A4;
    --md-sys-color-on-tertiary: #FFFFFF;
    --md-sys-color-tertiary-container: #D1E4FF;
    --md-sys-color-on-tertiary-container: #001D36;

    /* Surfaces - Clean Soft White */
    --md-sys-color-background: #FDFBFF;
    --md-sys-color-on-background: #1A1C1E;

    --md-sys-color-surface: #FDFBFF;
    --md-sys-color-on-surface: #1A1C1E;
    --md-sys-color-on-surface-variant: #44474E;

    /* Surface Containers - Better definition */
    --md-sys-color-surface-container-lowest: #FFFFFF;
    --md-sys-color-surface-container-low: #F6F8FC;
    --md-sys-color-surface-container: #EEF1F6;
    --md-sys-color-surface-container-high: #E8EBF1;
    --md-sys-color-surface-container-highest: #E2E5EB;

    /* Outlines */
    --md-sys-color-outline: #74777F;
    --md-sys-color-outline-variant: #C4C7D0;

    /* Gradient for light mode - Soft and subtle */
    --gradient-surface: radial-gradient(circle at top right, #EBF0F8, var(--md-sys-color-background) 70%);

    /* Force native UI (like select dropdowns) to light mode */
    color-scheme: light;
}

/* -------------------------------------------------------------------------
   MATERIAL YOU / DYNAMIC COLOR SUPPORT
   (Handled safely via JavaScript in script.js to avoid black-screen issues)
   ------------------------------------------------------------------------- */

/* -------------------------------------------------------------------------
   LIGHT MODE COMPONENT OVERRIDES
   Fix hardcoded dark colors that don't switch with CSS variables
   ------------------------------------------------------------------------- */

/* Sidebar - Tinted with Primary */
body.light-mode .sidebar {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 3%, #F6F8FC);
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.05);
}

body.light-mode .logo-area h2 {
    color: #1A1C1E;
}

/* Breadcrumbs */
body.light-mode .breadcrumbs {
    background: color-mix(in srgb, var(--md-sys-color-primary) 5%, #FFFFFF);
    border-color: rgba(0, 0, 0, 0.08);
    color: #1A1C1E;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

body.light-mode .breadcrumbs a {
    color: #44474E;
}

body.light-mode .breadcrumbs .current {
    color: #1A1C1E;
}

/* Search Box */
body.light-mode .search-box {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, rgba(0, 0, 0, 0.02));
}

body.light-mode .search-box:focus-within {
    background-color: #FFFFFF;
}

/* Tables */
body.light-mode .chip-table {
    background: rgba(255, 255, 255, 0.95);
    border-color: color-mix(in srgb, var(--md-sys-color-primary) 20%, #C4C7D0);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

body.light-mode .chip-table thead th {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 6%, #F0F4F9);
}

body.light-mode .chip-table .row-header {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 4%, #F6F8FC);
}

/* Welcome Cards */
body.light-mode .welcome-card {
    background-color: #FFFFFF;
    border-color: rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

body.light-mode .welcome-card::before {
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.01) 0%, transparent 100%);
}

body.light-mode .welcome-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--md-sys-color-primary);
}

/* Comparison Page */
body.light-mode .compare-header h1 {
    background: linear-gradient(135deg, #1A1C1E 0%, var(--md-sys-color-primary) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    text-shadow: none;
}

body.light-mode .selector-card {
    background-color: rgba(255, 255, 255, 0.9);
    border-color: rgba(0, 0, 0, 0.08);
}

body.light-mode .selector-card:hover {
    background-color: #FFFFFF;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--md-sys-color-primary);
}

body.light-mode .autocomplete-results {
    background: #FFFFFF;
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

body.light-mode .result-item {
    border-bottom-color: rgba(0, 0, 0, 0.05);
}

body.light-mode .result-item:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

body.light-mode .result-item strong {
    color: #1A1C1E;
}

/* Selected Chip Display */
body.light-mode .selected-chip-icon {
    background: #F6F8FC;
    border-color: rgba(0, 0, 0, 0.06);
}

body.light-mode .selected-chip-name {
    color: #1A1C1E;
}

body.light-mode .selected-chip-detail {
    background: #EEF1F6;
    color: #44474E;
}

/* Comparison Table */
body.light-mode #comparison-table-wrapper {
    background-color: #FFFFFF;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    border-color: #C4C7D0;
}

body.light-mode .comparison-category {
    background-color: #F0F4F9;
    color: #44474E;
}

/* Modals */
body.light-mode .modal-content {
    background-color: #FFFFFF;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.15);
}

body.light-mode .modal-header {
    background-color: #F8F9FB;
}

body.light-mode .setting-control select {
    background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%238F4E00' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") no-repeat right 8px center / 16px;
    border-color: #E2E5EB;
    color: #1A1C1E;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

body.light-mode .setting-control select:hover {
    border-color: var(--md-sys-color-primary);
}

/* Changelog Modal */
body.light-mode .changelog-content {
    background-color: #FFFFFF;
}

/* Scrollbar for light mode */
body.light-mode .modal-body::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.1);
}

body.light-mode .modal-body::-webkit-scrollbar-thumb:hover {
    background-color: rgba(0, 0, 0, 0.2);
}

/* Nav Back Home Button */
body.light-mode .nav-back-home {
    background: #FFFFFF !important;
    border-color: #E2E5EB !important;
    color: #44474E !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

body.light-mode .nav-back-home:hover {
    background: var(--md-sys-color-primary) !important;
    color: #FFFFFF !important;
    border-color: var(--md-sys-color-primary) !important;
    box-shadow: 0 4px 15px rgba(143, 78, 0, 0.2);
}

/* Invert Apple logo in light mode */
body.light-mode .brand-logo-apple {
    filter: invert(1);
}

/* Light mode chip-card styling for all screens */
body.light-mode .chip-card {
    background-color: #FFFFFF;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border-color: rgba(0, 0, 0, 0.06);
}

/* Mobile sidebar shadow in light mode */
@media (max-width: 768px) {
    body.light-mode .sidebar {
        background-color: #FFFFFF;
        box-shadow: 8px 0 32px rgba(0, 0, 0, 0.1);
    }
}


/* -------------------------------------------------------------------------
   RESET & BASE
   ------------------------------------------------------------------------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family-base);
    background-color: var(--md-sys-color-background);
    background-image: var(--gradient-surface);
    color: var(--md-sys-color-on-background);
    height: 100dvh;
    overflow: hidden;
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* -------------------------------------------------------------------------
   APP LAYOUT
   ------------------------------------------------------------------------- */
.app-container {
    display: flex;
    height: 100%;
    width: 100%;
}

/* -------------------------------------------------------------------------
   SIDEBAR (Navigation Drawer)
   ------------------------------------------------------------------------- */
.sidebar {
    width: var(--sidebar-width);
    background-color: color-mix(in srgb, var(--md-sys-color-surface-container) 85%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    /* Standard Modal/Drawer logic: usually no border in MD3 if distinct bg */
    /* using container-low gives subtle separation from pure black bg */
    display: flex;
    flex-direction: column;
    padding: 16px;

    /* Expressive Rounded Corner on the right */
    border-top-right-radius: var(--shape-corner-xl);
    border-bottom-right-radius: var(--shape-corner-xl);

    margin-right: 0;
    z-index: 100;
    transition: transform 0.3s cubic-bezier(0.2, 0.0, 0, 1.0);
    /* Emphasized easing */
}

.logo-area {
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 16px;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 24px;
    cursor: pointer;
    user-select: none;
}

.logo-area .material-icons-round {
    font-size: 28px;
    color: var(--md-sys-color-primary);
}

.logo-area h2 {
    font-size: 24px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.5px;
    margin: 0;
    background: none;
    -webkit-text-fill-color: initial;
}



/* Navigation List */
.nav-menu {
    flex: 1;
    overflow-y: auto;
    /* Hide scrollbar visually but allow scroll */
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    padding: 0 8px;
}

.nav-back-home {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent) !important;
    border: 1px solid var(--md-sys-color-primary) !important;
    color: var(--md-sys-color-primary) !important;
    margin: 8px 16px 16px 16px !important;
    height: 48px !important;
    border-radius: var(--shape-corner-m) !important;
    padding: 0 16px !important;
    justify-content: flex-start !important;
    gap: 12px !important;
    transition: all 0.3s ease !important;
}

.nav-back-home:hover {
    background-color: var(--md-sys-color-primary) !important;
    color: var(--md-sys-color-on-primary) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(230, 194, 117, 0.3);
}

.nav-back-home .material-icons-round {
    color: inherit !important;
}


.nav-group {
    margin-bottom: 8px;
}

.nav-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    cursor: pointer;
    border-radius: var(--shape-corner-full);
    margin: 4px 0;
    transition: background-color 0.2s ease;
    user-select: none;
}

.nav-group-header:hover {
    background-color: var(--md-sys-color-surface-container-highest);
}

.nav-group h3 {
    font-size: 14px;
    font-weight: 600;
    /* Bold like Unisoc */
    letter-spacing: 0.1px;
}

.nav-back-home {
    background: color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent) !important;
    border: 1px solid color-mix(in srgb, var(--md-sys-color-primary) 40%, transparent) !important;
    color: var(--md-sys-color-primary) !important;
    margin: 12px 16px 20px 16px !important;
    height: 48px !important;
    border-radius: 12px !important;
    padding: 0 16px !important;
    justify-content: flex-start !important;
    gap: 12px !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.nav-back-home:hover {
    background: var(--md-sys-color-primary) !important;
    color: var(--md-sys-color-on-primary) !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(230, 194, 117, 0.3);
    border-color: var(--md-sys-color-primary) !important;
}

.nav-back-home .material-icons-round {
    color: inherit !important;
    font-size: 20px !important;
}


.expand-icon {
    font-size: 24px;
    color: var(--md-sys-color-on-surface-variant);
    transition: transform 0.4s cubic-bezier(0.2, 0, 0, 1);
}

.nav-group.expanded .expand-icon {
    transform: rotate(180deg);
}

.nav-group-items {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.4s cubic-bezier(0.2, 0, 0, 1);
}

.nav-group.expanded .nav-group-items {
    grid-template-rows: 1fr;
    margin-bottom: 8px;
}

.nav-group-items-inner {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Top Level Items (Unisoc, Xiaomi, Tensor) */
.nav-item.nav-top-level {
    padding: 0 24px;
    font-weight: 600 !important;
    /* Bold with priority */
    height: 56px;
    /* Match standard items */
    margin: 4px 0;
    color: var(--md-sys-color-on-surface) !important;
    /* Bright white with priority */
    letter-spacing: 0.1px;
    /* Slight spacing for headers */
    font-size: 14px;
    /* Match nav group header size */
}

/* Nav Items - Pills */
.nav-item {
    display: flex;
    align-items: center;
    height: 56px;
    /* MD3 Standard for active destinations */
    padding: 0 24px 0 32px;
    /* Indented deeper */
    text-decoration: none;
    color: var(--md-sys-color-on-surface-variant);
    border-radius: var(--shape-corner-full);
    margin: 0 0 4px 0;
    font-size: 15px;
    font-weight: 500;
    transition: background-color var(--motion-duration-medium) var(--motion-easing-standard),
        color var(--motion-duration-medium) var(--motion-easing-standard),
        transform var(--motion-duration-short) var(--motion-easing-standard);
    position: relative;
    overflow: hidden;
}

/* Touch ripple simulation */
.nav-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--md-sys-color-on-surface);
    opacity: 0;
    transition: opacity 0.2s;
}

.nav-item:hover::after {
    opacity: 0.08;
}

.nav-item:active::after {
    opacity: 0.12;
}

/* Active State */
.nav-item.active {
    background-color: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
    font-weight: 600;
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-s);
    /* Further reduced padding (8px) */
    border-top: 1px solid var(--md-sys-color-outline-variant);
    display: flex;
    flex-direction: column;
    gap: 2px;
    /* Minimal gap */
}

/* Compact Footer Items */
.sidebar-footer .nav-item {
    height: 36px;
    /* Ultra compact (36px) */
    margin: 0;
    font-size: 13px;
    /* Smaller text */
    padding: 0 16px;
    /* Align with other primary items if needed, or stick to standard */
}

.sidebar-footer .nav-item .material-icons-round {
    font-size: 18px;
    margin-right: 10px;
    opacity: 0.8;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    /* Scrim */
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* -------------------------------------------------------------------------
   MAIN CONTENT AREA
   ------------------------------------------------------------------------- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--md-sys-color-background);
    position: relative;
    border-top-left-radius: var(--shape-corner-xl);
    /* If we want the "Page" look where main content is on top */
    /* Actually for double-pane, sidebar usually rounded r-side, content flat */
    border-top-left-radius: 0;
}

/* Header / Top Bar */
.top-bar {
    height: var(--header-height);
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    margin: 8px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px;
    gap: 16px;
    flex-shrink: 0;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: transparent;
    color: var(--md-sys-color-on-surface);
    width: 48px;
    height: 48px;
    border-radius: var(--shape-corner-full);
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* Breadcrumbs / Page Title */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #FFFFFF;
    font-size: 13.5px;
    font-weight: 500;
    white-space: nowrap;
    background: color-mix(in srgb, var(--md-sys-color-surface-container) 90%, transparent);
    padding: 8px 18px;
    border-radius: 100px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.breadcrumbs a {
    color: #EAE1D9;
    text-decoration: none;
    opacity: 0.9;
    transition: color 0.2s;
}

.breadcrumbs a:hover {
    color: var(--md-sys-color-primary);
}

.breadcrumbs .separator {
    opacity: 0.3;
    font-size: 16px;
    margin: 0 -1px;
}

.breadcrumbs .current {
    font-weight: 500;
    color: #FFFFFF;
}

/* Search Box - Floating Style */
.actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: var(--md-sys-color-surface-container-high);
    border-radius: var(--shape-corner-full);
    padding: 0 16px;
    height: 48px;
    /* Taller touch target */
    width: 260px;
    transition: background-color 0.2s, box-shadow 0.2s, width 0.3s;
}

.search-box:focus-within {
    background-color: var(--md-sys-color-surface-container-highest);
    box-shadow: 0 0 0 2px var(--md-sys-color-primary);
    width: 300px;
}

.search-box .search-icon {
    font-size: 24px;
    color: var(--md-sys-color-on-surface-variant);
    margin-right: 12px;
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    font-size: 16px;
    width: 100%;
    outline: none;
}

.search-box input::placeholder {
    color: var(--md-sys-color-on-surface-variant);
}

/* Buttons */
button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    padding: 0 var(--spacing-l);
    height: 40px;
    border-radius: var(--shape-corner-xl);
    transition: all var(--motion-duration-medium) var(--motion-easing-standard);
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.1px;
}

button:active {
    transform: scale(0.96);
}

/* Text Button */
.btn-text {
    background: transparent;
    color: var(--md-sys-color-primary);
    padding: 0 16px;
}

.btn-text:hover {
    background-color: rgba(var(--md-sys-color-primary), 0.08);
    /* Needs RBG helper ideally, relying on opacity here */
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
}

/* Filled Button */
.btn-contained {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-weight: 600;
}

.btn-contained:hover {
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    background-color: color-mix(in srgb, var(--md-sys-color-on-primary) 8%, var(--md-sys-color-primary));
}

.btn-icon {
    padding: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--shape-corner-full);
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
}

.btn-icon:hover {
    background-color: var(--md-sys-color-surface-container-highest);
    color: var(--md-sys-color-on-surface);
}

/* -------------------------------------------------------------------------
   CONTENT SCROLL AREA & TABLES
   ------------------------------------------------------------------------- */
.content-scroll-area {
    flex: 1;
    overflow: auto;
    padding: 16px;
    background-color: var(--md-sys-color-surface);
    /* Match table surface to eliminate visual gaps */
}

/* Table Container - Card-like styling */
/* Table Container - Card-like styling */
.table-container {
    width: 100%;
    background-color: transparent;
    /* Remove background, let cards float */
    border-radius: 0;
    /* Remove border radius constraint */
    overflow: visible;
    /* Allow shadows to pop out */
}

.chip-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 14px;
    background: rgba(35, 31, 27, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--shape-corner-xl);
    overflow: hidden;
    border: 1px solid var(--md-sys-color-outline-variant);
}

.chip-table th,
.chip-table td {
    padding: var(--spacing-m) var(--spacing-l);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    text-align: left;
    white-space: nowrap;
    vertical-align: middle;
    transition: background-color var(--motion-duration-short) var(--motion-easing-standard);
}

.chip-table tbody tr:hover td {
    background-color: var(--md-sys-color-surface-container-low);
}

.category-header-row td {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, var(--md-sys-color-surface-container));
    color: var(--md-sys-color-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    font-size: 13px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    border-top: 1px solid var(--md-sys-color-outline-variant);
    text-align: left;
    pointer-events: none;
    /* No hover effect needed */
}

/* Ensure sticky column doesn't break uniformity */
.category-header-row td.row-header {
    background-color: inherit;
}

/* Row Headers (Sticky Left) */
.chip-table .row-header {
    position: sticky;
    left: 0;
    background-color: var(--md-sys-color-surface-container);
    /* Slightly warmer/elevated */
    z-index: 20;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    border-right: 1px solid var(--md-sys-color-outline-variant);
    min-width: var(--specs-width);
    width: var(--specs-width);
}

/* Column Headers (Sticky Top) */
.chip-table thead th {
    position: sticky;
    top: 0;
    background-color: var(--md-sys-color-surface-container-high);
    z-index: 30;
    color: var(--md-sys-color-on-surface);
    font-size: 1.1em;
    font-weight: 500;
    text-align: center;
    border-bottom: 1px solid var(--md-sys-color-outline);
    padding: 24px;
}

/* Chip Image/Avatar Cell inside Header */
.chip-image-placeholder {
    width: 80px;
    height: 80px;
    background-color: var(--md-sys-color-surface-container-highest);
    color: var(--md-sys-color-on-surface);
    margin: 0 auto 16px auto;
    border-radius: var(--shape-corner-xl);
    /* Squircle */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.chip-name {
    display: block;
    font-family: var(--font-family-base);
    font-weight: 500;
    font-size: 20px;
    margin-bottom: 4px;
    overflow-wrap: anywhere;
    word-break: break-word;
}

/* Row Hover */
.chip-table tbody tr:hover td {
    background-color: var(--md-sys-color-surface-container-highest);
}

/* FAB */
.fab {
    position: fixed;
    bottom: 32px;
    /* Bottom right standard */
    right: 32px;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    /* MD3 FAB is somewhat squareish */
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    border: none;
    box-shadow: 0 4px 8px 3px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.3);
    display: none;
    /* toggleable */
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.2, 0.0, 0, 1.0);
}

.fab:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 12px 4px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* Specs Hidden Mode */
.specs-hidden {
    --specs-width: 0px !important;
}

.specs-hidden .row-header,
.specs-hidden .chip-table thead th:first-child {
    display: none !important;
}

/* View Toggling - Two Column Grid on Desktop */
.chip-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-m);
    padding: var(--spacing-m);
    padding-bottom: 128px;
    background-color: var(--md-sys-color-background);
    width: 100%;
    max-width: 1000px;
    margin-inline: auto;
    perspective: 1000px;
    /* For potential 3D entrance effects */
    align-items: start;
    justify-items: center;
}

.chip-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-m);
    align-items: center;
    width: 100%;
}

/* Base Card Styles - Unified (same as mobile) */
.chip-card {
    background-color: var(--md-sys-color-surface-container);
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--shape-corner-xl);
    /* More rounded for expressive feel */
    overflow: hidden;
    margin: 0;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.1);
    /* MD3 Elevation Level 2-ish */
    transition: transform var(--motion-duration-medium) var(--motion-easing-emphasized),
        box-shadow var(--motion-duration-medium) var(--motion-easing-emphasized),
        background-color var(--motion-duration-medium) var(--motion-easing-standard);

    /* Staggered Entrance Animation Base */
    opacity: 0;
    transform: translateY(24px);
    animation: cardEntrance var(--motion-duration-long) var(--motion-easing-emphasized) forwards;

    /* Limit card width for centered appearance */
    width: 100%;
    max-width: 420px;
}

.chip-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    border-color: var(--md-sys-color-primary);
    background-color: var(--md-sys-color-surface-container-high);
}

.chip-card:active {
    transform: scale(0.96);
    /* More pronounced click effect */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

@keyframes cardEntrance {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

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

.chip-card-header {
    padding: 20px 28px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 20px;
    cursor: pointer;
    transition: background-color var(--motion-duration-short) var(--motion-easing-standard);
    user-select: none;
}

.chip-card-header:hover {
    background-color: var(--md-sys-color-surface-container-high);
}

.chip-card-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--shape-corner-xl);
    background-color: var(--md-sys-color-surface-container-highest);
    color: var(--md-sys-color-on-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--motion-duration-medium) var(--motion-easing-emphasized);
}

.chip-card-title-group {
    flex: 1;
}

.chip-card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
    overflow-wrap: anywhere;
    word-break: break-word;
}

.chip-card-subtitle {
    font-size: 14px;
    color: color-mix(in srgb, var(--md-sys-color-primary) 70%, var(--md-sys-color-on-surface-variant));
    font-family: var(--font-family-mono);
    font-weight: 500;
}

.chip-card-body {
    position: static;
    padding: 0 var(--spacing-l) var(--spacing-l);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-m);
    transition: all 0.4s cubic-bezier(0.2, 0.0, 0, 1.0);
    background-color: rgba(0, 0, 0, 0.1);
}

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

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

.chip-card.expanded .chip-card-body {
    max-height: 2000px;
    opacity: 1;
    padding: var(--spacing-l);
    border-top: 1px solid var(--md-sys-color-outline-variant);
    animation: fadeSlideIn var(--motion-duration-medium) var(--motion-easing-decelerate);
}

.chip-card.expanded .expand-icon {
    transform: rotate(180deg);
}

/* Spec item styling for card body */
.spec-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-s);
}

.spec-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    letter-spacing: 0.8px;
}

.spec-value {
    font-size: 14px;
    color: var(--md-sys-color-on-surface);
    font-weight: 500;
}


.desktop-view,
.mobile-view {
    display: contents;
}


/* -------------------------------------------------------------------------
   WELCOME PAGE STYLES
   ------------------------------------------------------------------------- */
.welcome-container {
    padding: 48px 24px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 48px;
    align-items: center;
}

.welcome-hero {
    text-align: center;
    max-width: 800px;
}

.welcome-title {
    font-size: 64px;
    /* Display Large */
    line-height: 72px;
    background: linear-gradient(135deg, var(--md-sys-color-on-surface) 0%, var(--md-sys-color-primary) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 24px;
    font-weight: 400;
    font-family: var(--font-family-brand);
    letter-spacing: -1px;
}

.welcome-subtitle {
    font-size: 22px;
    /* Headline Small */
    line-height: 28px;
    color: var(--md-sys-color-on-surface-variant);
}

.welcome-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    width: 100%;
}

.welcome-card {
    background-color: color-mix(in srgb, var(--md-sys-color-surface-container) 60%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--shape-corner-xl);
    padding: 32px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.2, 0.0, 0, 1.0);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.welcome-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.welcome-card:hover::before {
    opacity: 1;
}

.welcome-card:hover {
    background-color: color-mix(in srgb, var(--md-sys-color-surface-container-high) 70%, transparent);
    transform: translateY(-6px);
    box-shadow: 0 12px 24px 8px rgba(0, 0, 0, 0.15);
    border-color: rgba(255, 255, 255, 0.1);
}

.welcome-card:active {
    transform: scale(0.98);
    background-color: var(--md-sys-color-surface-container-highest);
}

.welcome-card-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
}

.welcome-card-icon {
    font-size: 32px !important;
    /* Override material icons default size if needed */
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    padding: 16px;
    border-radius: var(--shape-corner-xl);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
}

.welcome-card h3 {
    font-size: 24px;
    /* Headline Small */
    color: var(--md-sys-color-on-surface);
    margin: 0;
    font-weight: 500;
}

.welcome-card p {
    font-size: 16px;
    /* Body Large */
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
    line-height: 1.5;
}

/* -------------------------------------------------------------------------
   COMPARISON PAGE STYLES
   ------------------------------------------------------------------------- */
.compare-container {
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-anchor: none;
    /* Prevent browser from jumping scroll position when cards resize */
}

.compare-header {
    text-align: center;
    margin-bottom: 16px;
}

.compare-header h1 {
    font-size: 48px;
    background: linear-gradient(135deg, #FFF 0%, var(--md-sys-color-primary) 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
    font-weight: 400;
    letter-spacing: -1px;
}

.compare-header p {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 16px;
}

.selectors-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.selector-card {
    background-color: color-mix(in srgb, var(--md-sys-color-surface-container-high) 60%, transparent);
    border-radius: var(--shape-corner-xl);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    border: 1px solid color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(0);
    /* Force GPU layer */
    backface-visibility: hidden;
    /* Prevent micro-shaking */

}

.selector-card:hover {
    transform: translateY(-4px);
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px color-mix(in srgb, var(--md-sys-color-primary) 10%, transparent);
    background-color: color-mix(in srgb, var(--md-sys-color-surface-container-highest) 70%, transparent);
}

.selector-search-box {
    display: flex;
    align-items: center;
    background-color: var(--md-sys-color-surface-container-highest);
    border-radius: var(--shape-corner-full);
    /* Pill */
    padding: 0 16px;
    height: 56px;
    transition: box-shadow 0.2s;
}

.selector-search-box:focus-within {
    box-shadow: 0 0 0 2px var(--md-sys-color-primary);
}

.selector-search-box input {
    background: transparent;
    border: none;
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    font-size: 16px;
    width: 100%;
    outline: none;
    height: 100%;
}

.selector-search-box input::placeholder {
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.7;
}

.autocomplete-results {
    position: absolute;
    top: 88px;
    left: 24px;
    right: 24px;
    background: color-mix(in srgb, var(--md-sys-color-surface-container) 95%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid rgba(230, 194, 117, 0.2);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    display: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.autocomplete-results.active {
    display: block;
    animation: fadeInDropdown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInDropdown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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


.result-item {
    padding: 14px 20px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: all 0.2s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.result-item:hover {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 15%, transparent);
    padding-left: 24px;
}

.result-item strong {
    color: #FFF;
    font-size: 15px;
    font-weight: 500;
}

.result-item small {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 12px;
    opacity: 0.8;
}


.selected-chip-display {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 16px;
    padding: 32px 24px;
    height: 100%;
    animation: fadeInScale 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.selected-chip-display.active {
    display: flex;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }

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


.selected-chip-icon {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.2);
}

.selected-chip-name {
    font-size: 26px;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.5px;
    overflow-wrap: anywhere;
    word-break: break-word;
    max-width: 100%;
}

.selected-chip-detail {
    font-size: 14px;
    color: var(--md-sys-color-on-surface-variant);
    font-family: var(--font-family-base);
    font-weight: 500;
    opacity: 0.9;
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 16px;
    border-radius: 100px;
    letter-spacing: 0.5px;
}



.remove-chip-btn {
    margin-top: 8px;
    background-color: transparent;
    color: var(--md-sys-color-error);
    border: 1px solid var(--md-sys-color-error);
    border-radius: var(--shape-corner-full);
}

.remove-chip-btn:hover {
    background-color: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
    border-color: transparent;
}

/* Comparison Table Wrapper */
#comparison-table-wrapper {
    margin-top: 24px;
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 5%, var(--md-sys-color-surface-container));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid color-mix(in srgb, var(--md-sys-color-primary) 20%, var(--md-sys-color-outline-variant));
    border-radius: var(--shape-corner-xl);
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    contain: content;
    /* Isolate this area's layout calculations */
}

/* Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    /* Eliminate column width recalculation jitter */
}

.comparison-table th,
.comparison-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.comparison-table th {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, var(--md-sys-color-surface-container));
    color: var(--md-sys-color-on-surface);
    font-weight: 600;
    font-family: var(--font-family-base);
    position: sticky;
    top: 0;
}


.comparison-category {
    background-color: color-mix(in srgb, var(--md-sys-color-primary) 15%, var(--md-sys-color-surface-container));
    backdrop-filter: blur(4px);
    color: var(--md-sys-color-on-secondary-container);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 1px;
    padding: 24px 16px 8px 16px;
}

.feature-label {
    width: 30%;
    color: var(--md-sys-color-primary);
    font-size: 14px;
    font-weight: 600;
}

.val-col {
    width: 35%;
    font-size: 14px;
    color: var(--md-sys-color-on-surface);
    font-family: var(--font-family-base);
    font-weight: 500;
}


/* Benchmark Comparison Styles */
.benchmark-comparison {
    background-color: var(--md-sys-color-surface-container);
    padding: 24px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.benchmark-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.benchmark-header {
    display: flex;
    align-items: center;
}

.benchmark-header h3 {
    margin: 0;
    font-size: 18px;
    color: var(--md-sys-color-on-surface);
}

.benchmark-desc {
    margin: 0;
    font-size: 14px;
    color: var(--md-sys-color-on-surface-variant);
}

.benchmark-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.benchmark-grid.single {
    grid-template-columns: 1fr;
}

.benchmark-column h4 {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--md-sys-color-primary);
}

.benchmark-bar-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.benchmark-bar-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    font-size: 13px;
    gap: 8px;
}

.benchmark-bar-label {
    color: var(--md-sys-color-on-surface);
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-family-base);
    flex: 1;
    min-width: 0;
    flex-wrap: wrap;
}

.chip-name-text {
    overflow-wrap: anywhere;
    word-break: break-word;
}


.benchmark-diff {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.benchmark-diff.positive {
    background-color: var(--md-sys-color-success-container);
    color: #000000;
    box-shadow: 0 0 10px rgba(0, 255, 127, 0.2);
}


/* Fallback if success colors missing */
:root {
    --md-sys-color-success-container: #4cd964;
    --md-sys-color-on-success-container: #07210e;
}

[data-theme="dark"] {
    --md-sys-color-success-container: #4cd964;
    /* Pure Neon Green */
    --md-sys-color-on-success-container: #000000;
}



.benchmark-bar-value {
    font-family: var(--font-family-base);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}


.benchmark-bar-container {
    height: 8px;
    background-color: var(--md-sys-color-surface-container-highest);
    border-radius: 4px;
    overflow: hidden;
    width: 100%;
}

.benchmark-bar {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s cubic-bezier(0.2, 0.0, 0, 1.0);
}

/* -------------------------------------------------------------------------
   RESPONSIVE DESIGN (Mobile)
   ------------------------------------------------------------------------- */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 300px;
        --header-height: 64px;
        /* Full screen sheets on mobile often lose corner radius or set to top only */
        --specs-width: 120px;
    }

    /* Layout Stack */
    .app-container {
        flex-direction: column;
    }

    /* Mobile Sidebar is Modal Drawer */
    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        border-radius: 0 var(--shape-corner-l) var(--shape-corner-l) 0;
        background-color: var(--md-sys-color-surface-container-low);
        transform: translateX(-105%);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
        margin: 0;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .mobile-menu-btn {
        display: flex;
    }

    /* Header adjustments */
    .top-bar {
        margin: 0;
        border-radius: 0;
        background-color: var(--md-sys-color-background);
        border-bottom: 1px solid var(--md-sys-color-outline-variant);
        padding: 0 8px;
        gap: 8px;
    }

    .breadcrumbs {
        display: none;
    }

    .actions {
        flex: 1;
        width: 100%;
    }

    .search-box {
        flex: 1;
        width: auto;
        margin: 0;
    }

    .search-box:focus-within {
        width: auto;
    }

    .btn-text,
    .btn-contained {
        display: none;
    }

    #theme-toggle {
        display: flex;
    }

    /* Content Area */
    .content-scroll-area {
        padding: 0;
        /* Flush on mobile */
    }

    .table-container {
        border-radius: 0;
    }

    /* Table Font Sizing */
    .chip-table th,
    .chip-table td {
        padding: 16px 12px;
        font-size: 14px;
    }

    .chip-name {
        font-size: 16px;
    }

    /* Sticky headers adjustment */
    .chip-table thead th:first-child,
    .chip-table tbody td.row-header {
        left: 0 !important;
        width: var(--specs-width);
        min-width: var(--specs-width);
        max-width: var(--specs-width);
        white-space: normal;
        font-size: 13px;
        line-height: 1.3;
    }

    /* View Toggling for Mobile */
    .desktop-view {
        display: none !important;
    }

    .mobile-view {
        display: block;
    }

    /* Card View - Mobile styles extend global card styles */
    /* Single column on mobile */
    .chip-grid {
        grid-template-columns: 1fr;
        padding: var(--spacing-m) 0;
        justify-items: stretch;
    }

    .chip-card {
        max-width: none;
        margin: 0 var(--spacing-m);
    }

    /* Smaller card sizing on mobile */
    .chip-card-header {
        padding: var(--spacing-l);
        gap: var(--spacing-m);
    }

    .chip-card-icon {
        width: 56px;
        height: 56px;
    }

    .chip-card-title {
        font-size: 18px;
    }

    .chip-card-subtitle {
        font-size: 13px;
    }


    .mobile-back-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-s);
        margin-right: var(--spacing-s);
        color: var(--md-sys-color-on-surface);
        transition: background-color var(--motion-duration-short) var(--motion-easing-standard);
        border-radius: var(--shape-corner-full);
    }

    .mobile-back-btn:hover {
        background-color: var(--md-sys-color-surface-container-highest);
    }

    /* Mobile Comparison Styles */
    .compare-container {
        padding: var(--spacing-m);
    }

    .selectors-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-m);
    }

    .selector-card {
        padding: var(--spacing-m);
        border-radius: var(--shape-corner-l);
        transition: transform var(--motion-duration-medium) var(--motion-easing-standard);
    }

    /* Mobile Card Expansion Styles */
    .chip-details-expand {
        width: 100%;
        background-color: transparent;
        color: var(--md-sys-color-primary);
        border-top: 1px solid var(--md-sys-color-outline-variant);
        border-radius: 0;
        height: 48px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 16px;
        font-size: 14px;
        font-weight: 500;
        margin-top: auto;
    }

    .chip-details-expand:hover {
        background-color: var(--md-sys-color-surface-container-highest);
    }

    .chip-details-content {
        display: none;
        /* js toggles to grid/block */
        border-top: 1px solid var(--md-sys-color-outline-variant);
        background-color: var(--md-sys-color-surface-container-low);
    }

    .chip-details-inner {
        padding: 16px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
}

/* -------------------------------------------------------------------------
   MODAL STYLES (Settings, Changelog)
   ------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--motion-duration-medium) var(--motion-easing-standard);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--md-sys-color-surface-container-high);
    border: 1px solid var(--md-sys-color-outline-variant);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
    border-radius: var(--shape-corner-xl);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9);
    transition: transform var(--motion-duration-medium) var(--motion-easing-emphasized);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-l);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    background-color: color-mix(in srgb, var(--md-sys-color-surface-container) 50%, transparent);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin: 0;
}

.modal-close-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--md-sys-color-on-surface-variant);
    padding: 8px;
    border-radius: var(--shape-corner-full);
    transition: background-color var(--motion-duration-short) var(--motion-easing-standard);
}

.modal-close-btn:hover {
    background-color: var(--md-sys-color-surface-container-highest);
}

.modal-body {
    padding: var(--spacing-l);
    overflow-y: auto;
    flex: 1;
}

/* Settings Modal Specific */
.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-m) 0;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

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

.setting-item {
    transition: background-color 0.2s;
    padding: 16px;
    border-radius: var(--shape-corner-m);
}

.setting-item:hover {
    background-color: var(--md-sys-color-surface-container-highest);
}

.setting-info h3 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin: 0 0 4px 0;
}

.setting-info p {
    font-size: 0.875rem;
    color: var(--md-sys-color-on-surface-variant);
    margin: 0;
}

.setting-control {
    position: relative;
}

.setting-control select {
    padding: 8px 36px 8px 16px;
    border-radius: var(--shape-corner-m);
    border: 1px solid var(--md-sys-color-outline);
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-size: 0.875rem;
    font-family: inherit;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.setting-control:has(select)::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid var(--md-sys-color-primary);
    pointer-events: none;
    transition: border-color 0.2s;
}

.setting-control select:hover {
    border-color: var(--md-sys-color-primary);
}

.setting-control select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--md-sys-color-primary) 25%, transparent);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--md-sys-color-surface-container-highest);
    border: 2px solid var(--md-sys-color-outline);
    transition: 0.3s;
    border-radius: 28px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--md-sys-color-outline);
    transition: 0.3s;
    border-radius: 50%;
}

.toggle-switch input:checked+.toggle-slider {
    background-color: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
}

.toggle-switch input:checked+.toggle-slider:before {
    transform: translateX(24px);
    background-color: var(--md-sys-color-on-primary);
}

/* Accent Color Control */
.accent-control {
    display: flex;
    align-items: center;
    gap: 12px;
}

.setting-desc {
    font-size: 0.8rem;
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 4px;
}

/* Custom Color Picker UI */
.custom-color-picker {
    position: relative;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    /* Squircle */
    cursor: pointer;
    overflow: hidden;
    box-shadow: 0 0 0 1px var(--md-sys-color-outline);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.custom-color-picker:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 2px var(--md-sys-color-primary);
}

#accent-preview {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
}

#accent-picker {
    position: absolute;
    top: -10px;
    left: -10px;
    width: 200%;
    height: 200%;
    opacity: 0;
    cursor: pointer;
    z-index: 2;
}

.picker-icon {
    position: relative;
    z-index: 1;
    color: #fff;
    font-size: 20px;
    opacity: 0.8;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 4px;
    pointer-events: none;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* Accent Presets */
.accent-preset {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 12px;
    /* Squircle */
    border: 3px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.accent-preset:hover {
    transform: translateY(-2px) scale(1.1);
    border-color: var(--md-sys-color-on-surface);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.accent-preset:active {
    transform: scale(0.95);
}

/* Ripple effect hint */
.accent-preset::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

.accent-preset:hover::after {
    opacity: 1;
}

/* Changelog Modal Specific */
.changelog-content {
    max-width: 600px;
    background-color: rgba(28, 25, 21, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.changelog-entry,
.changelog-item {
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.changelog-entry:last-child,
.changelog-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.changelog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.changelog-version {
    font-family: var(--font-family-mono);
    font-size: 1.1rem;
    color: var(--md-sys-color-primary);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.changelog-date {
    font-size: 0.85rem;
    color: var(--md-sys-color-on-surface-variant);
    font-family: var(--font-family-mono);
    opacity: 0.8;
}

.changelog-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.changelog-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--md-sys-color-on-surface);
}

.changelog-list li::before {
    content: "•";
    color: var(--md-sys-color-secondary);
    position: absolute;
    left: 4px;
    top: 0;
}

/* Custom Scrollbar for Modal Body */
.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: transparent;
}

.modal-body::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.modal-body::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.2);
}



.changelog-version {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    margin: 0 0 4px 0;
}

.changelog-date {
    font-size: 0.8rem;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: var(--spacing-s);
}

.changelog-changes {
    list-style: disc;
    padding-left: var(--spacing-l);
    margin: 0;
}

.changelog-changes li {
    font-size: 0.9rem;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 4px;
}

/* Animations */
@keyframes expandSection {
    from {
        grid-template-rows: 0fr;
        opacity: 0;
        padding-top: 0;
        padding-bottom: 0;
    }

    to {
        grid-template-rows: 1fr;
        opacity: 1;
        padding-top: 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

/* -------------------------------------------------------------------------
   FIREFOX OPTIMIZATIONS
   Disable backdrop-filter in Firefox to prevent significant performance lag
   ------------------------------------------------------------------------- */
@-moz-document url-prefix() {

    .sidebar,
    .chip-table,
    .welcome-card,
    .selector-card,
    .autocomplete-results,
    #comparison-table-wrapper,
    .comparison-category {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    /* Adjust backgrounds to be more opaque since blur is gone */
    .sidebar {
        background-color: var(--md-sys-color-surface-container);
    }

    .chip-table {
        background-color: var(--md-sys-color-surface-container);
    }

    .welcome-card {
        background-color: var(--md-sys-color-surface-container);
    }

    .selector-card {
        background-color: var(--md-sys-color-surface-container-high);
    }

    .autocomplete-results {
        background-color: var(--md-sys-color-surface-container-high);
    }

    #comparison-table-wrapper {
        background-color: var(--md-sys-color-surface-container);
    }

    .comparison-category {
        background-color: var(--md-sys-color-surface-container-high);
    }

    .selected-chip-display {
        animation: none !important;
    }
}