/*
 * Workshop Agents IA — Theme CSS
 * Adservio | 2026
 *
 * Features:
 * - Light/Dark mode with CSS custom properties
 * - Print-optimized styles
 * - Responsive layout
 * - Accessible color contrast
 */

/* === CSS VARIABLES === */
:root {
    /* Light theme (default) */
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-bg-code: #f4f4f5;
    --color-text: #1a1a2e;
    --color-text-muted: #64748b;
    --color-text-heading: #0f172a;
    --color-link: #2563eb;
    --color-link-hover: #1d4ed8;
    --color-border: #e2e8f0;
    --color-border-strong: #cbd5e1;
    --color-accent: #3b82f6;
    --color-accent-light: #dbeafe;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Track Colors - Pastel */
    --color-track-a: #fef3c7;      /* Warm amber pastel */
    --color-track-a-border: #f59e0b;
    --color-track-a-accent: #d97706;
    --color-track-b: #dbeafe;      /* Cool blue pastel */
    --color-track-b-border: #3b82f6;
    --color-track-b-accent: #2563eb;
    --color-track-c: #dcfce7;      /* Fresh green pastel */
    --color-track-c-border: #22c55e;
    --color-track-c-accent: #16a34a;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "JetBrains Mono", "Fira Code", Consolas, Monaco, "Courier New", monospace;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Layout */
    --sidebar-width: 280px;
    --content-max-width: 900px;
    --header-height: 70px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Dark theme */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-alt: #1e293b;
    --color-bg-code: #1e293b;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-heading: #f1f5f9;
    --color-link: #60a5fa;
    --color-link-hover: #93c5fd;
    --color-border: #334155;
    --color-border-strong: #475569;
    --color-accent: #3b82f6;
    --color-accent-light: #1e3a5f;

    /* Track Colors - Dark mode */
    --color-track-a: #422006;
    --color-track-a-border: #f59e0b;
    --color-track-a-accent: #fbbf24;
    --color-track-b: #1e3a5f;
    --color-track-b-border: #60a5fa;
    --color-track-b-accent: #93c5fd;
    --color-track-c: #14532d;
    --color-track-c-border: #4ade80;
    --color-track-c-accent: #86efac;
}

/* === SYNTAX HIGHLIGHTING - DARK MODE === */
[data-theme="dark"] code span.al { color: #ff6b6b; } /* Alert - bright red */
[data-theme="dark"] code span.an { color: #7ec8e3; font-style: italic; } /* Annotation */
[data-theme="dark"] code span.at { color: #c9d1d9; } /* Attribute */
[data-theme="dark"] code span.bn { color: #79c0ff; } /* BaseN - bright blue */
[data-theme="dark"] code span.bu { color: #7ee787; } /* BuiltIn - green */
[data-theme="dark"] code span.cf { color: #ff7b72; font-weight: bold; } /* ControlFlow - coral */
[data-theme="dark"] code span.ch { color: #a5d6ff; } /* Char - light blue */
[data-theme="dark"] code span.cn { color: #ffa657; } /* Constant - orange */
[data-theme="dark"] code span.co { color: #8b949e; font-style: italic; } /* Comment - gray */
[data-theme="dark"] code span.cv { color: #8b949e; font-style: italic; } /* CommentVar */
[data-theme="dark"] code span.do { color: #8b949e; font-style: italic; } /* Documentation */
[data-theme="dark"] code span.dt { color: #ff7b72; } /* DataType - coral */
[data-theme="dark"] code span.dv { color: #79c0ff; } /* DecVal - blue */
[data-theme="dark"] code span.er { color: #ff6b6b; font-weight: bold; } /* Error */
[data-theme="dark"] code span.ex { color: #d2a8ff; } /* Extension - purple */
[data-theme="dark"] code span.fl { color: #79c0ff; } /* Float - blue */
[data-theme="dark"] code span.fu { color: #d2a8ff; } /* Function - purple */
[data-theme="dark"] code span.im { color: #ff7b72; } /* Import - coral */
[data-theme="dark"] code span.in { color: #7ec8e3; font-style: italic; } /* Information */
[data-theme="dark"] code span.kw { color: #ff7b72; font-weight: bold; } /* Keyword - coral */
[data-theme="dark"] code span.op { color: #c9d1d9; } /* Operator - light gray */
[data-theme="dark"] code span.ot { color: #79c0ff; } /* Other - blue */
[data-theme="dark"] code span.pp { color: #ffa657; } /* Preprocessor - orange */
[data-theme="dark"] code span.sc { color: #a5d6ff; } /* SpecialChar - light blue */
[data-theme="dark"] code span.ss { color: #a5d6ff; } /* SpecialString */
[data-theme="dark"] code span.st { color: #a5d6ff; } /* String - light blue */
[data-theme="dark"] code span.va { color: #ffa657; } /* Variable - orange */
[data-theme="dark"] code span.vs { color: #a5d6ff; } /* VerbatimString */
[data-theme="dark"] code span.wa { color: #f0883e; font-style: italic; } /* Warning - amber */

/* Dark mode code block base text */
[data-theme="dark"] pre.sourceCode,
[data-theme="dark"] code.sourceCode {
    color: #e6edf3;
}

[data-theme="dark"] .article-body pre {
    background-color: #161b22;
    border-color: #30363d;
}

[data-theme="dark"] .article-body code {
    background-color: #21262d;
    color: #e6edf3;
}

/* === RESET & BASE === */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* === HEADER === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo {
    height: 40px;
    width: auto;
}

.header-title h1,
.site-header h1 {
    margin: 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-heading);
}

.subtitle {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--color-link);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-link-hover);
}

/* Home button with icon */
.home-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.home-link:hover {
    background-color: var(--color-bg-alt);
    transform: scale(1.05);
}

.home-icon {
    width: 28px;
    height: 28px;
    transition: transform var(--transition-fast);
}

.home-link:hover .home-icon {
    transform: translateX(-2px);
}

.home-text {
    font-weight: 500;
}

@media (max-width: 768px) {
    .home-text {
        display: none;
    }
}

/* === SEARCH === */
.search-container {
    position: relative;
}

#search-input {
    width: 250px;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

#search-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-light);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: var(--spacing-xs);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    max-height: 400px;
    overflow-y: auto;
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    transition: background-color var(--transition-fast);
}

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

.search-result-item:hover {
    background-color: var(--color-bg-alt);
}

.search-result-item .title {
    font-weight: 500;
    color: var(--color-text-heading);
}

.search-result-item .subject {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* === THEME TOGGLE === */
.theme-toggle,
.print-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    background-color: var(--color-bg-alt);
    cursor: pointer;
    font-size: 1.2rem;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.theme-toggle:hover,
.print-btn:hover {
    background-color: var(--color-border);
}

.theme-toggle .icon-dark,
[data-theme="dark"] .theme-toggle .icon-light {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-dark {
    display: inline;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-accent);
    color: white;
    border: none;
}

.btn-primary:hover {
    background-color: var(--color-link-hover);
}

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

.btn-secondary:hover {
    background-color: var(--color-border);
}

/* === LAYOUT === */
.page-layout {
    display: flex;
    min-height: calc(100vh - var(--header-height) - 100px);
}

/* === SIDEBAR / TOC === */
.sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-md));
    width: var(--sidebar-width);
    height: fit-content;
    max-height: calc(100vh - var(--header-height) - var(--spacing-xl));
    padding: var(--spacing-lg);
    overflow-y: auto;
    border-right: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
}

.toc h2 {
    margin: 0 0 var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.toc ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.toc li {
    margin-bottom: var(--spacing-xs);
}

.toc a {
    display: block;
    padding: var(--spacing-xs) 0;
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.toc a:hover {
    color: var(--color-link);
}

/* TOC Active State - Highlight current section */
.toc a.active {
    color: var(--color-accent);
    font-weight: 600;
    border-left: 3px solid var(--color-accent);
    padding-left: var(--spacing-sm);
    margin-left: calc(-1 * var(--spacing-sm) - 3px);
    background-color: var(--color-accent-light);
    border-radius: 0 4px 4px 0;
}

.toc ul ul {
    padding-left: var(--spacing-md);
}

.toc ul ul a {
    font-size: 0.8125rem;
}

.toc ul ul a.active {
    margin-left: calc(-1 * var(--spacing-md) - var(--spacing-sm) - 3px);
    padding-left: calc(var(--spacing-md) + var(--spacing-sm));
}

/* === MAIN CONTENT === */
.content {
    flex: 1;
    max-width: var(--content-max-width);
    padding: var(--spacing-xl) var(--spacing-2xl);
}

.article-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.article-header h1 {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-heading);
    line-height: 1.2;
}

.article-header .meta {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* === TYPOGRAPHY === */
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
    margin: var(--spacing-2xl) 0 var(--spacing-md);
    color: var(--color-text-heading);
    font-weight: 600;
    line-height: 1.3;
}

.article-body h1 { font-size: var(--font-size-2xl); }
.article-body h2 { font-size: var(--font-size-xl); border-bottom: 1px solid var(--color-border); padding-bottom: var(--spacing-sm); }
.article-body h3 { font-size: var(--font-size-lg); }
.article-body h4 { font-size: var(--font-size-base); }

.article-body p {
    margin: 0 0 var(--spacing-md);
}

.article-body a {
    color: var(--color-link);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-fast);
}

.article-body a:hover {
    border-bottom-color: var(--color-link);
}

/* === LISTS === */
.article-body ul,
.article-body ol {
    margin: 0 0 var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.article-body li {
    margin-bottom: var(--spacing-xs);
}

.article-body li > ul,
.article-body li > ol {
    margin-top: var(--spacing-xs);
    margin-bottom: 0;
}

/* === TABLES === */
.article-body table {
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.article-body th,
.article-body td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border: 1px solid var(--color-border);
}

.article-body th {
    background-color: var(--color-bg-alt);
    font-weight: 600;
    color: var(--color-text-heading);
}

.article-body tr:nth-child(even) {
    background-color: var(--color-bg-alt);
}

/* === CODE === */
.article-body code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    padding: 0.1em 0.3em;
    background-color: var(--color-bg-code);
    border-radius: 4px;
}

.article-body pre {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    overflow-x: auto;
    background-color: var(--color-bg-code);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.article-body pre code {
    padding: 0;
    background-color: transparent;
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

/* === COPY CODE BUTTON === */
.copy-code-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-family: var(--font-sans);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast), background-color var(--transition-fast);
    z-index: 10;
}

pre:hover .copy-code-btn {
    opacity: 1;
}

.copy-code-btn:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

.copy-code-btn.copied {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
    opacity: 1;
}

[data-theme="dark"] .copy-code-btn {
    background: #374151;
    border-color: #4b5563;
    color: #e5e7eb;
}

[data-theme="dark"] .copy-code-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

/* === BLOCKQUOTES === */
.article-body blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    border-left: 4px solid var(--color-accent);
    background-color: var(--color-accent-light);
    border-radius: 0 8px 8px 0;
}

.article-body blockquote p:last-child {
    margin-bottom: 0;
}

/* === INDEX PAGE === */
.index-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-2xl);
}

.intro {
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background-color: var(--color-bg-alt);
    border-radius: 12px;
}

.intro-header {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--spacing-md);
}

.version-status {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 20px;
    border: 2px solid;
}

.version-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    font-family: var(--font-mono);
    color: var(--color-text-muted);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.intro p {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-lg);
}

.intro .meta {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.doc-section {
    margin-bottom: var(--spacing-2xl);
}

.doc-section h2 {
    margin: 0 0 var(--spacing-lg);
    font-size: var(--font-size-xl);
    color: var(--color-text-heading);
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: var(--spacing-sm);
}

.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.doc-card {
    padding: var(--spacing-lg);
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

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

.doc-card h3 {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-base);
}

.doc-card h3 a {
    color: var(--color-text-heading);
    text-decoration: none;
}

.doc-card h3 a:hover {
    color: var(--color-link);
}

/* Track-specific card colors */
.doc-card.track-a {
    background-color: var(--color-track-a);
    border-color: var(--color-track-a-border);
    border-left: 4px solid var(--color-track-a-border);
}

.doc-card.track-a h3 a {
    color: var(--color-track-a-accent);
}

.doc-card.track-a:hover {
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.doc-card.track-b {
    background-color: var(--color-track-b);
    border-color: var(--color-track-b-border);
    border-left: 4px solid var(--color-track-b-border);
}

.doc-card.track-b h3 a {
    color: var(--color-track-b-accent);
}

.doc-card.track-b:hover {
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.doc-card.track-c {
    background-color: var(--color-track-c);
    border-color: var(--color-track-c-border);
    border-left: 4px solid var(--color-track-c-border);
}

.doc-card.track-c h3 a {
    color: var(--color-track-c-accent);
}

.doc-card.track-c:hover {
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.2);
}

/* Track badges */
.track-badge {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 4px;
    margin-bottom: var(--spacing-sm);
}

.track-badge.track-a {
    background-color: var(--color-track-a-border);
    color: white;
}

.track-badge.track-b {
    background-color: var(--color-track-b-border);
    color: white;
}

.track-badge.track-c {
    background-color: var(--color-track-c-border);
    color: white;
}

.doc-subject {
    margin: 0 0 var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.doc-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* === FOOTER === */
.site-footer {
    padding: var(--spacing-xl) var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.site-footer p {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.site-footer a {
    color: var(--color-link);
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

.footer-note {
    font-size: 0.75rem;
    opacity: 0.8;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .sidebar {
        display: none;
    }

    .content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .site-header {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .header-controls {
        width: 100%;
        justify-content: space-between;
    }

    #search-input {
        width: 150px;
    }

    .index-main {
        padding: var(--spacing-lg);
    }

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

/* === PRINT STYLES === */
@media print {
    :root {
        --color-bg: white;
        --color-text: black;
        --color-text-heading: black;
        --color-link: black;
    }

    body {
        font-size: 11pt;
        line-height: 1.5;
    }

    .site-header,
    .sidebar,
    .header-controls,
    .theme-toggle,
    .print-btn,
    .search-container,
    .doc-actions .btn-secondary {
        display: none !important;
    }

    .page-layout {
        display: block;
    }

    .content {
        max-width: 100%;
        padding: 0;
    }

    .article-body h1,
    .article-body h2,
    .article-body h3 {
        page-break-after: avoid;
    }

    .article-body pre,
    .article-body blockquote,
    .article-body table {
        page-break-inside: avoid;
    }

    .article-body a {
        text-decoration: underline;
    }

    .article-body a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }

    .site-footer {
        margin-top: var(--spacing-xl);
        padding: var(--spacing-md);
        border-top: 1px solid #ccc;
    }

    @page {
        margin: 2cm;
    }
}