/* Material Design 3 with Karolinska Institutet Colors */

:root {
    /* KI Brand Colors (constant) */
    --ki-brand-plum: #870052;
    --ki-brand-dark-plum: #4F0433;
    --ki-brand-orange: #FF876F;

    /* Typography Scale */
    --md-sys-typescale-display-large: 57px;
    --md-sys-typescale-headline-large: 32px;
    --md-sys-typescale-title-large: 22px;
    --md-sys-typescale-body-large: 16px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;

    /* Semantic Status Colors */
    --status-error-bg: #FFEBEE;
    --status-error-text: #C62828;
    --status-error-border: #E53935;
    
    --status-success-bg: #E8F5E9;
    --status-success-text: #2E7D32;
    --status-success-border: #4CAF50;

    --status-warning-bg: #FFF3E0;
    --status-warning-text: #E65100;
    --status-warning-border: #FFB74D;
}

/* ===== DARK THEME (DEFAULT) ===== */
[data-theme="dark"] {
    /* Core Colors - Midnight Plum Aesthetic */
    --ki-dark-plum: #F5EDF3;
    --ki-plum: #C066A0;
    --ki-orange: #FF876F;
    --ki-light-orange: #240820;
    --ki-light-blue: #1F1030;
    --ki-plum-light: #D088B8;
    --ki-orange-dark: #E56550;
    --ki-grey: #A08898;
    --ki-grey-light: #1A0118;

    /* Material Design System */
    --md-sys-color-primary: #C066A0;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #240820;
    --md-sys-color-secondary: #FF876F;
    --md-sys-color-surface: #1A0118;
    --md-sys-color-surface-variant: #1F1030;
    --md-sys-color-background: #12010F;

    /* Section backgrounds */
    --section-white: #1A0118;
    --section-orange: #240820;
    --section-blue: #1F1030;
    --section-dark: #0E000C;

    /* Border */
    --border-color: rgba(255,135,111,0.1);

    --md-sys-elevation-1: 0 1px 2px rgba(0,0,0,0.3), 0 1px 3px rgba(0,0,0,0.4);
    --md-sys-elevation-2: 0 2px 4px rgba(0,0,0,0.35), 0 4px 8px rgba(0,0,0,0.45);
    --md-sys-elevation-3: 0 4px 8px rgba(0,0,0,0.4), 0 8px 16px rgba(0,0,0,0.5);

    color-scheme: dark;

    /* Semantic Aliases for Components */
    --navbar-bg: var(--section-dark);
    --card-bg: var(--md-sys-color-surface-variant);
    --dropdown-bg: var(--md-sys-color-surface);
    --footer-bg: var(--section-dark);

    /* Status Overrides for Dark Mode */
    --status-error-bg: #2A0A0A;
    --status-error-text: #EF9A9A;
    --status-success-bg: #0A2A0A;
    --status-success-text: #A5D6A7;
    --status-warning-bg: #2A200A;
    --status-warning-text: #FFCC80;
}

/* ===== LIGHT THEME ===== */
[data-theme="light"] {
    /* Core Colors - Warm Plum/Orange */
    --ki-dark-plum: #000000;
    --ki-plum: #870052;
    --ki-orange: #FF876F;
    --ki-light-orange: #FEEEEB;
    --ki-light-blue: #EDF4F4;
    --ki-plum-light: #B3407A;
    --ki-orange-dark: #E56550;
    --ki-grey: #666666;
    --ki-grey-light: #FFFFFF;

    /* Material Design System */
    --md-sys-color-primary: #870052;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #FEEEEB;
    --md-sys-color-secondary: #FF876F;
    --md-sys-color-surface: #FFFFFF;
    --md-sys-color-surface-variant: #EDF4F4;
    --md-sys-color-background: #FEEEEB;

    /* Section backgrounds */
    --section-white: #FFFFFF;
    --section-orange: #FEEEEB;
    --section-blue: #EDF4F4;
    --section-dark: #4F0433;

    /* Border */
    --border-color: #EDDBE4;

    --md-sys-elevation-1: 0 1px 2px rgba(0,0,0,0.05), 0 1px 3px rgba(0,0,0,0.08);
    --md-sys-elevation-2: 0 2px 4px rgba(0,0,0,0.06), 0 4px 8px rgba(0,0,0,0.10);
    --md-sys-elevation-3: 0 4px 8px rgba(0,0,0,0.08), 0 8px 16px rgba(0,0,0,0.12);

    color-scheme: light;

    /* Semantic Aliases for Components */
    --navbar-bg: var(--ki-brand-plum);
    --card-bg: var(--md-sys-color-surface);
    --dropdown-bg: var(--md-sys-color-surface);
    --footer-bg: var(--ki-brand-dark-plum);
}

/* Theme-specific visibility utilities */
[data-theme="dark"] .light-only { display: none !important; }
[data-theme="light"] .dark-only { display: none !important; }

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 1px solid var(--ki-grey);
    border-radius: 20px;
    padding: 4px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--ki-dark-plum);
    font-size: 14px;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    border-color: var(--ki-plum);
    color: var(--ki-plum);
}

.theme-toggle .material-icons {
    font-size: 18px;
}

/* Navbar Theme Overrides */
.navbar {
    background-color: var(--navbar-bg);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .navbar {
    background-color: var(--ki-brand-plum);
}

[data-theme="light"] .nav-menu > li > a {
    color: rgba(255, 255, 255, 0.9);
}

[data-theme="light"] .nav-menu > li > a:hover,
[data-theme="light"] .nav-menu > li > a.active {
    color: #FFFFFF;
}

/* Dropdown Theme Overrides - Ensure visibility in light mode */
.dropdown-menu {
    background: var(--dropdown-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--md-sys-elevation-3);
}

[data-theme="light"] .dropdown-menu a {
    color: var(--ki-plum);
}

[data-theme="light"] .dropdown-menu a:hover {
    background: var(--md-sys-color-surface-variant);
    color: var(--ki-brand-dark-plum);
}

/* Mobile Menu Overrides for Light Mode */
@media (max-width: 768px) {
    [data-theme="light"] .nav-menu {
        background: var(--md-sys-color-surface);
    }
    
    [data-theme="light"] .nav-menu a {
        color: var(--ki-plum);
        border-bottom: 1px solid var(--md-sys-color-surface-variant);
    }
    
    [data-theme="light"] .nav-menu a:hover {
        background: var(--md-sys-color-surface-variant);
        color: var(--ki-brand-dark-plum);
    }

    [data-theme="light"] .nav-toggle {
        color: white;
    }
}

/* Card Theme Overrides */
.option-card,
.feature-card,
.info-card,
.notebook-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
}

.nav-github {
    background-color: var(--ki-plum);
    color: var(--section-dark) !important;
}
}

[data-theme="dark"] .nav-github:hover {
    background-color: #D088B8;
}

[data-theme="dark"] .nav-pypi {
    background-color: #FF876F;
    color: #0E000C !important;
}

[data-theme="dark"] .code-example {
    background: #0E000C;
    border: 1px solid rgba(255,135,111,0.1);
}

[data-theme="dark"] .install-command {
    background: #0E000C;
    border: 1px solid rgba(255,135,111,0.15);
    box-shadow: 0 4px 16px rgba(0,0,0,0.5);
}

[data-theme="dark"] .footer {
    background-color: #0E000C;
    border-top: 1px solid rgba(255,135,111,0.1);
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #0E000C 0%, #1A0118 50%, #1F1030 100%);
}

[data-theme="dark"] .btn-primary {
    background-color: #C066A0;
    color: #0E000C;
}

[data-theme="dark"] .btn-primary:hover {
    background-color: #D088B8;
}

[data-theme="dark"] .btn-secondary {
    border-color: #C066A0;
    color: #C066A0;
}

[data-theme="dark"] .btn-secondary:hover {
    background-color: rgba(192, 102, 160, 0.1);
}

[data-theme="dark"] .page-header {
    background: linear-gradient(135deg, #0E000C 0%, #1F1030 100%);
}

[data-theme="dark"] .badge {
    background: rgba(192, 102, 160, 0.15);
    color: #C066A0;
}

[data-theme="dark"] .features {
    background-color: #1F1030;
}

[data-theme="dark"] .install-extra-item {
    background: #1F1030;
    border: 1px solid rgba(255,135,111,0.1);
}

[data-theme="dark"] .install-extra-item code {
    color: #C066A0;
}

[data-theme="dark"] .methods-category-card {
    background: #1F1030;
    border: 1px solid rgba(255,135,111,0.1);
}

[data-theme="dark"] .code-compare-wrong .code-compare-label {
    background: #2A0A0A;
    color: #EF9A9A;
}

[data-theme="dark"] .code-compare-correct .code-compare-label {
    background: #0A2A0A;
    color: #A5D6A7;
}

/* Section background classes */
.section-white { background-color: var(--section-white); }
.section-orange { background-color: var(--section-orange); }
.section-blue { background-color: var(--section-blue); }
.section-dark { background-color: var(--section-dark); color: white; }

@media (max-width: 768px) {
    [data-theme="dark"] .nav-menu {
        background: #1A0118;
    }
    [data-theme="dark"] .dropdown-menu {
        background: #1F1030;
    }
}

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

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--md-sys-color-background);
    color: var(--ki-dark-plum);
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background-color: var(--md-sys-color-surface);
    box-shadow: var(--md-sys-elevation-1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.brand-logo {
    font-size: var(--md-sys-typescale-title-large);
    font-weight: 700;
    color: var(--ki-plum);
}

.brand-tagline {
    font-size: 14px;
    color: var(--ki-grey);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-menu > li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: var(--ki-dark-plum);
    font-weight: 500;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-menu a:hover {
    color: var(--ki-plum);
}

/* Dropdown Menu */
.nav-dropdown {
    position: relative;
}

.nav-dropdown > a::after {
    content: "arrow_drop_down";
    font-family: 'Material Icons';
    font-size: 20px;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover > a::after {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--md-sys-color-surface);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: var(--spacing-sm) 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 10px;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--ki-dark-plum);
    font-weight: 400;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background: var(--md-sys-color-surface-variant);
    color: var(--ki-plum);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--ki-plum);
    font-size: 28px;
    cursor: pointer;
}

/* Responsive Navigation */
@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-md);
    }
    
    .brand-tagline {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 60px);
        background: var(--md-sys-color-surface);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-lg);
        box-shadow: -2px 0 8px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        overflow-y: auto;
        display: flex; /* Ensure it is flex when not hidden */
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-menu > li {
        width: 100%;
    }
    
    .nav-menu a {
        padding: var(--spacing-sm) 0;
        width: 100%;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 0;
        visibility: hidden;
        display: none;
        transform: none;
        box-shadow: none;
        background: var(--md-sys-color-surface-variant);
        margin-left: var(--spacing-md);
        margin-top: 0;
        min-width: unset;
        width: calc(100% - var(--spacing-md));
        transition: none;
    }

    .nav-dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        display: block;
    }

    .nav-dropdown > a::after {
        margin-left: auto;
    }

    .nav-dropdown.active > a::after {
        transform: rotate(180deg);
    }
}

.nav-github {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--ki-plum);
    color: white !important;
    border-radius: 24px;
}

.nav-github:hover {
    background-color: var(--ki-dark-plum);
    color: white !important;
}

/* Page Headers - Add spacing from navigation */
.page-header {
    padding-top: calc(var(--spacing-xxl) + 20px);
    padding-bottom: var(--spacing-xxl);
    background: linear-gradient(135deg, var(--section-blue) 0%, var(--section-orange) 100%);
}

.page-title {
    font-size: var(--md-sys-typescale-display-medium);
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-md);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--section-blue) 0%, var(--section-orange) 100%);
    padding: var(--spacing-xxl) var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-title {
    font-size: var(--md-sys-typescale-display-large);
    font-weight: 300;
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--md-sys-typescale-body-large);
    color: var(--ki-grey);
    margin-bottom: var(--spacing-xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Buttons - Material Design 3 */
.btn-primary, .btn-secondary {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--ki-plum);
    color: white;
    box-shadow: var(--md-sys-elevation-1);
}

.btn-primary:hover {
    background-color: var(--ki-dark-plum);
    box-shadow: var(--md-sys-elevation-2);
}

.btn-secondary {
    background-color: var(--md-sys-color-surface);
    color: var(--ki-plum);
    border: 1px solid var(--ki-plum);
}

.btn-secondary:hover {
    background-color: var(--ki-light-orange);
}

/* Method Selector */
.method-selector {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--md-sys-color-surface);
}

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

h2 {
    font-size: var(--md-sys-typescale-headline-large);
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.decision-tree {
    margin-top: var(--spacing-xl);
}

.decision-card {
    background: var(--md-sys-color-surface-variant);
    border-radius: 16px;
    padding: var(--spacing-xl);
    box-shadow: var(--md-sys-elevation-1);
}

.decision-card h3 {
    color: var(--ki-plum);
    margin-bottom: var(--spacing-lg);
}

.decision-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.option-card {
    background: var(--md-sys-color-surface);
    border-radius: 12px;
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    border: 2px solid transparent;
}

.option-card:hover {
    border-color: var(--ki-orange);
    box-shadow: var(--md-sys-elevation-2);
    transform: translateY(-2px);
}

.option-card .material-icons {
    font-size: 48px;
    color: var(--ki-plum);
    margin-bottom: var(--spacing-sm);
}

.option-card h4 {
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-xs);
}

.option-card p {
    color: var(--ki-grey);
    font-size: 14px;
}

/* Features Grid */
.features {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--section-blue);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--md-sys-color-surface);
    border-radius: 16px;
    padding: var(--spacing-xl);
    box-shadow: var(--md-sys-elevation-1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-sys-elevation-2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--ki-light-orange);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon .material-icons {
    font-size: 32px;
    color: var(--ki-plum);
}

.feature-card h3 {
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--ki-grey);
    font-size: 14px;
}

/* Quick Start Section */
.quick-start {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--md-sys-color-surface);
}

.code-example {
    background: var(--section-dark);
    color: white;
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    overflow-x: auto;
}

.code-example pre {
    margin: 0;
}

.code-example code {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
}

.quick-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.btn-colab img {
    height: 32px;
}

/* Notebooks Section */
.notebooks {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--ki-light-orange);
}

.notebooks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.notebook-card {
    background: var(--md-sys-color-surface);
    border-radius: 12px;
    padding: var(--spacing-lg);
    box-shadow: var(--md-sys-elevation-1);
    transition: all 0.3s ease;
}

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

.notebook-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.notebook-badge {
    background: var(--ki-orange);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.notebook-link {
    color: var(--ki-plum);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    margin-top: var(--spacing-md);
}

.notebook-link:hover {
    color: var(--ki-dark-plum);
}

/* Visualization Section */
.visualization-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--section-white);
}

.vis-controls {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.vis-controls select {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--md-sys-color-surface);
    color: var(--ki-dark-plum);
    font-size: 14px;
}

#cv-visualization {
    min-height: 400px;
    background: var(--ki-light-blue);
    border-radius: 12px;
    padding: var(--spacing-lg);
}

/* Footer */
.footer {
    background-color: var(--section-dark);
    color: white;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--ki-orange);
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.footer-section a:hover {
    opacity: 1;
}

/* PyPI Nav Button */
.nav-pypi {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--ki-orange);
    color: white !important;
    border-radius: 24px;
    font-weight: 500;
    font-size: 14px;
}

.nav-pypi:hover {
    background-color: var(--ki-orange-dark);
    color: white !important;
}

/* Install Section */
.install-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background-color: var(--md-sys-color-surface);
}

.install-hero {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.install-command {
    background: var(--section-dark);
    color: #FF876F;
    border-radius: 16px;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-family: 'Courier New', monospace;
    font-size: 20px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    box-shadow: var(--md-sys-elevation-3);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.install-command:hover {
    transform: scale(1.02);
}

.install-command .copy-icon {
    color: rgba(255,255,255,0.6);
    font-size: 20px;
    cursor: pointer;
}

.install-command .copy-icon:hover {
    color: white;
}

.install-extras {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.install-extra-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--ki-grey-light);
    border-radius: 8px;
    font-size: 14px;
}

.install-extra-item code {
    font-family: 'Courier New', monospace;
    color: var(--ki-plum);
    font-weight: 500;
}

.install-extra-item span.extra-desc {
    color: var(--ki-grey);
    font-size: 13px;
}

/* Hero Badges */
.hero-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.hero-badges img {
    height: 22px;
}

/* Page Header Badges */
.header-badges {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.badge {
    background: rgba(135, 0, 82, 0.1);
    color: var(--ki-plum);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 500;
}

/* Page Subtitle */
.page-subtitle {
    font-size: var(--md-sys-typescale-body-large);
    color: var(--ki-grey);
    max-width: 800px;
}

.section-subtitle {
    text-align: center;
    color: var(--ki-grey);
    font-size: var(--md-sys-typescale-body-large);
    margin-top: calc(-1 * var(--spacing-md));
    margin-bottom: var(--spacing-xl);
}

/* Content Section (for new doc pages) */
.content-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
}

.content-section:nth-child(even) {
    background-color: var(--ki-grey-light);
}

.content-section h2 {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.content-section h3 {
    color: var(--ki-plum);
    margin-bottom: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.content-section p {
    color: var(--ki-grey);
    margin-bottom: var(--spacing-md);
    max-width: 800px;
}

/* Prism.js Override for KI theme */
.content-section pre[class*="language-"],
.code-block pre[class*="language-"] {
    border-radius: 12px;
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

/* Code Comparison (Wrong vs Correct) */
.code-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.code-compare-wrong {
    border: 2px solid var(--status-error-border);
    border-radius: 12px;
    overflow: hidden;
}

.code-compare-correct {
    border: 2px solid var(--status-success-border);
    border-radius: 12px;
    overflow: hidden;
}

.code-compare-label {
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
    font-size: 13px;
}

.code-compare-wrong .code-compare-label {
    background: var(--status-error-bg);
    color: var(--status-error-text);
}

.code-compare-correct .code-compare-label {
    background: var(--status-success-bg);
    color: var(--status-success-text);
}

.code-compare pre {
    margin: 0 !important;
    border-radius: 0 !important;
}

@media (max-width: 768px) {
    .code-compare {
        grid-template-columns: 1fr;
    }
}

/* Info Cards Grid */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.info-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: var(--spacing-xl);
    box-shadow: var(--md-sys-elevation-1);
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-sys-elevation-2);
}

.info-card h4 {
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.info-card h4 .material-icons {
    color: var(--ki-plum);
}

.info-card p {
    color: var(--ki-grey);
    font-size: 14px;
}

/* Severity badges */
.severity-critical { background: var(--status-error-bg); color: var(--status-error-text); padding: 2px 8px; border-radius: 8px; font-size: 11px; font-weight: 600; }
.severity-high { background: var(--status-warning-bg); color: var(--status-warning-text); padding: 2px 8px; border-radius: 8px; font-size: 11px; font-weight: 600; }
.severity-medium { background: var(--status-warning-bg); color: var(--status-warning-text); padding: 2px 8px; border-radius: 8px; font-size: 11px; font-weight: 600; opacity: 0.8; }

/* Code block copy button */
pre {
    position: relative;
}

.copy-button {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--md-sys-color-surface-variant);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px;
    cursor: pointer;
    color: var(--ki-grey);
    opacity: 0;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

pre:hover .copy-button {
    opacity: 1;
}

.copy-button:hover {
    background: var(--ki-plum);
    color: white;
}

.copy-button.copied {
    color: #4CAF50;
    border-color: #4CAF50;
}

.copy-button .material-icons {
    font-size: 16px;
}

/* Tooltips */
.tooltip-trigger {
    border-bottom: 1px dotted var(--ki-plum);
    cursor: help;
    position: relative;
    display: inline-block;
}

.tooltip-content {
    visibility: hidden;
    width: 240px;
    background-color: var(--ki-brand-dark-plum);
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 12px;
    position: absolute;
    z-index: 100;
    bottom: 125%;
    left: 50%;
    margin-left: -120px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 13px;
    font-weight: 400;
    line-height: 1.4;
    box-shadow: var(--md-sys-elevation-3);
    pointer-events: none;
}

[data-theme="light"] .tooltip-content {
    background-color: var(--ki-brand-plum);
}

.tooltip-trigger:hover .tooltip-content {
    visibility: visible;
    opacity: 1;
}

.tooltip-content::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--ki-brand-dark-plum) transparent transparent transparent;
}

[data-theme="light"] .tooltip-content::after {
    border-color: var(--ki-brand-plum) transparent transparent transparent;
}

.demo-header-inline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

/* Breadcrumbs */
.breadcrumbs {
    padding: var(--spacing-md) 0;
    font-size: 14px;
    color: var(--ki-grey);
}

.breadcrumbs-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.breadcrumbs a {
    color: var(--ki-plum);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumbs a:hover {
    color: var(--ki-brand-plum);
    text-decoration: underline;
}

.breadcrumbs .separator {
    margin: 0 var(--spacing-xs);
    color: var(--border-color);
}

.breadcrumbs .current {
    color: var(--ki-dark-plum);
    font-weight: 500;
}

.btn-code-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--md-sys-color-surface-variant);
    border: 1px solid var(--ki-plum);
    border-radius: 8px;
    color: var(--ki-plum) !important;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-code-link:hover {
    background: var(--ki-plum);
    color: white !important;
    box-shadow: var(--md-sys-elevation-2);
}

/* Visualization Method Description Box */
.method-description {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
    box-shadow: var(--md-sys-elevation-1);
    color: var(--ki-dark-plum);
}

.method-description h3 {
    color: var(--ki-plum);
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.method-description p {
    color: var(--ki-dark-plum);
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.method-description ul {
    list-style: none;
    padding: 0;
}

.method-description li {
    padding: var(--spacing-xs) 0;
    font-size: 0.95rem;
    color: var(--ki-grey);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Podcast Section */
.podcast-section {
    padding: var(--spacing-xxl) var(--spacing-lg);
    background: linear-gradient(135deg, var(--ki-brand-plum) 0%, var(--ki-brand-dark-plum) 100%);
    color: white;
    text-align: center;
}

.podcast-section h2 {
    color: var(--ki-brand-orange);
    margin-bottom: var(--spacing-md);
}

.podcast-container {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xl);
    border-radius: 24px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--md-sys-elevation-3);
}

.podcast-description {
    font-size: var(--md-sys-typescale-body-large);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.podcast-player {
    width: 100%;
    height: 50px;
    border-radius: 25px;
    outline: none;
}

/* Customizing audio player for webkit if possible, but standard is fine */
.podcast-player::-webkit-media-controls-panel {
    background-color: var(--ki-light-blue);
}

.podcast-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 14px;
    opacity: 0.8;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    /* Remove conflicting nav-menu display none */
    .nav-menu {
        /* display: none; */ /* REMOVED */
    }
    
    .decision-options {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}