/* Beepscript WASM Documentation Stylesheet
   Dark theme default, with light theme via data-theme="light" */

/* ==========================================================================
   Theme variables
   ========================================================================== */

:root {
    /* Dark theme (default) */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #1c2128;
    --bg-toolbar: #161b22;
    --bg-editor: #1c2128;
    --bg-editor-lines: #161b22;
    --bg-editor-toolbar: #1c2128;
    --bg-nav: #161b22;
    --bg-card: #161b22;
    --bg-code: #1c2128;
    --bg-toc: #161b22;
    --bg-hover: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --text-editor: #e6edf3;
    --border-primary: #21262d;
    --border-secondary: #30363d;
    --link-color: #58a6ff;
    --link-hover: #79c0ff;
    --accent-color: #3b82f6;
    --accent-range: #58a6ff;
    --btn-play-bg: #1a3a2a;
    --btn-play-border: #2d6a4f;
    --btn-play-text: #52c41a;
    --btn-stop-bg: #3a1a1a;
    --btn-stop-border: #6a2d2d;
    --btn-stop-text: #ff6b6b;
    --btn-reset-bg: #1a1a2a;
    --btn-reset-border: #2d2d4f;
    --btn-reset-text: #8b949e;
    --btn-download-bg: #1a2a3a;
    --btn-download-border: #2d4f6a;
    --btn-download-text: #58a6ff;
    --error-bg: #3a1a1a;
    --error-border: #6a2d2d;
    --error-text: #ff6b6b;
    --success-bg: #1a3a2a;
    --success-border: #2d6a4f;
    --success-text: #52c41a;
    --table-header-bg: #161b22;
    --table-stripe-bg: #1c2128;
    --blockquote-border: #30363d;
    --blockquote-text: #8b949e;
    --active-nav-bg: #3b82f6;
    --active-nav-text: #fff;
    --logo-beep: #58a6ff;
    --logo-script: #e6edf3;
}

[data-theme="light"] {
    --bg-primary: #fdfdff;
    --bg-secondary: #f8f9fc;
    --bg-tertiary: #f0f2f7;
    --bg-toolbar: #f0f2f8;
    --bg-editor: #f0f2f7;
    --bg-editor-lines: #e8ebf4;
    --bg-editor-toolbar: #eceef6;
    --bg-nav: #f2f4fa;
    --bg-card: #f8f9fc;
    --bg-code: #eef0f7;
    --bg-toc: #f4f5fb;
    --bg-hover: #e4e8f2;
    --text-primary: #333;
    --text-secondary: #555;
    --text-muted: #999;
    --text-editor: #333;
    --border-primary: #d8dce8;
    --border-secondary: #e0e4ee;
    --link-color: #0066cc;
    --link-hover: #0052a3;
    --accent-color: #3366cc;
    --accent-range: #3366cc;
    --btn-play-bg: #e8f5e9;
    --btn-play-border: #a5d6a7;
    --btn-play-text: #2e7d32;
    --btn-stop-bg: #fce4ec;
    --btn-stop-border: #ef9a9a;
    --btn-stop-text: #c62828;
    --btn-reset-bg: #e8eaf6;
    --btn-reset-border: #c5cae9;
    --btn-reset-text: #555;
    --btn-download-bg: #e3f2fd;
    --btn-download-border: #90caf9;
    --btn-download-text: #1565c0;
    --error-bg: #fce4ec;
    --error-border: #ef9a9a;
    --error-text: #c00;
    --success-bg: #e8f5e9;
    --success-border: #a5d6a7;
    --success-text: #2e7d32;
    --table-header-bg: #eef0f7;
    --table-stripe-bg: #f8f9fc;
    --blockquote-border: #c5cae9;
    --blockquote-text: #666;
    --active-nav-bg: #3366cc;
    --active-nav-text: white;
    --logo-beep: #1a3a6a;
    --logo-script: #333;
}

/* ==========================================================================
   Base
   ========================================================================== */

* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    margin: 0;
    padding: 0;
}

main {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

/* ==========================================================================
   Logo
   ========================================================================== */

.nav-brand-logo .beep { font-weight: 800; color: var(--logo-beep); }
.nav-brand-logo .script { font-weight: 400; color: var(--logo-script); }

/* ==========================================================================
   Theme switcher
   ========================================================================== */

.theme-switcher {
    background: none;
    border: 1px solid var(--border-primary);
    border-radius: 20px;
    padding: 0.25rem 0.6rem;
    cursor: pointer;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-family: inherit;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap;
    vertical-align: middle;
}

.theme-switcher:hover {
    background: var(--bg-hover);
    border-color: var(--border-secondary);
    color: var(--text-primary);
}

.theme-switcher .theme-icon { font-size: 0.9rem; }

/* ==========================================================================
   Site-wide navigation bar (canonical, injected into all pages)
   ========================================================================== */

.landing-nav {
    display: flex;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    position: sticky;
    top: 0;
    z-index: 100;
}

.landing-nav .nav-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 0.02em;
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
}

.landing-nav .nav-brand .beep {
    font-weight: 800;
    color: var(--logo-beep);
}

.landing-nav .nav-brand .script {
    font-weight: 400;
    color: var(--logo-script);
}

.landing-nav .nav-links {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.landing-nav .nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.15s;
}

.landing-nav .nav-links a:hover {
    color: var(--text-primary);
}

.landing-nav .nav-links a.active {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================================================
   Global toolbar (volume, panic, status)
   ========================================================================== */

.global-toolbar {
    background: var(--bg-toolbar);
    border-bottom: 1px solid var(--border-primary);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toolbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.global-toolbar .volume-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.global-toolbar .volume-group label { white-space: nowrap; }

.global-toolbar input[type="range"] {
    width: 120px;
    accent-color: var(--accent-range);
}

.global-toolbar .volume-value {
    min-width: 2.5em;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.panic-btn {
    background: #d32f2f;
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 0.35rem 1rem;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.05em;
    transition: opacity 0.15s;
}

.panic-btn:hover { opacity: 0.85; }

.init-status { font-size: 0.8rem; color: var(--text-muted); }
.init-status.ready { color: var(--success-text); }
.init-status.error { color: var(--error-text); }

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2rem; border-bottom: 1px solid var(--border-secondary); padding-bottom: 0.5rem; }
h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border-secondary); padding-bottom: 0.3rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

p { margin: 1rem 0; }

a { color: var(--link-color); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--link-hover); }

code {
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.9em;
    background: var(--bg-code);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    color: var(--text-primary);
}

pre {
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.875rem;
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    margin: 1rem 0;
    color: var(--text-primary);
}

pre code { background: none; padding: 0; }

/* ==========================================================================
   Beepscript interactive example blocks
   ========================================================================== */

.beepscript-example {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    padding: 0;
    margin: 1.5rem 0;
    overflow: hidden;
}

.code-wrap { position: relative; }

.editor-container {
    display: flex;
    background: var(--bg-editor);
    border-bottom: 1px solid var(--border-secondary);
    overflow: hidden;
}

.line-numbers {
    flex-shrink: 0;
    padding: 1rem 0.5rem 1rem 0.75rem;
    background: var(--bg-editor-lines);
    color: var(--text-muted);
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    text-align: right;
    user-select: none;
    white-space: pre;
    border-right: 1px solid var(--border-primary);
    overflow: hidden;
    min-width: 2.5em;
}

.beepscript-editor {
    display: block;
    width: 100%;
    min-height: 80px;
    padding: 1rem 1rem 1rem 0.75rem;
    background: var(--bg-editor);
    color: var(--text-editor);
    border: none;
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    resize: vertical;
    tab-size: 2;
    outline: none;
    white-space: pre;
    overflow-x: auto;
}

.beepscript-editor:focus { box-shadow: inset 0 0 0 1px var(--accent-color); }

.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--bg-editor-toolbar);
    border-bottom: 1px solid var(--border-secondary);
}

.toolbar-left-group { display: flex; gap: 0.5rem; }

.editor-toolbar button {
    border: 1px solid;
    border-radius: 4px;
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
    cursor: pointer;
    font-family: inherit;
    transition: opacity 0.15s;
}

.editor-toolbar button:hover { opacity: 0.8; }

.btn-play { background: var(--btn-play-bg); border-color: var(--btn-play-border); color: var(--btn-play-text); }
.btn-stop { background: var(--btn-stop-bg); border-color: var(--btn-stop-border); color: var(--btn-stop-text); }
.btn-reset { background: var(--btn-reset-bg); border-color: var(--btn-reset-border); color: var(--btn-reset-text); }
.btn-download { background: var(--btn-download-bg); border-color: var(--btn-download-border); color: var(--btn-download-text); }

.error-area {
    padding: 0;
    font-family: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.8rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.error-area:not(:empty) {
    padding: 0.75rem 1rem;
    background: var(--error-bg);
    border-top: 1px solid var(--error-border);
    color: var(--error-text);
}

.error-area.success:not(:empty) {
    background: var(--success-bg);
    border-top-color: var(--success-border);
    color: var(--success-text);
}

/* ==========================================================================
   Tables
   ========================================================================== */

table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
th, td { padding: 0.5rem 1rem; text-align: left; border: 1px solid var(--border-primary); color: var(--text-primary); }
th { background: var(--table-header-bg); font-weight: 600; }
tr:nth-child(even) { background: var(--table-stripe-bg); }

/* Blockquotes */
blockquote { border-left: 3px solid var(--blockquote-border); margin: 1.5rem 0; padding: 0.5rem 1rem; color: var(--blockquote-text); }
blockquote p { margin: 0.5rem 0; }

hr { border: none; border-top: 1px solid var(--border-secondary); margin: 2rem 0; }

ul, ol { padding-left: 2rem; margin: 1rem 0; }
li { margin: 0.25rem 0; }

/* Table of contents */
#TOC { background: var(--bg-toc); padding: 1rem; border-radius: 4px; margin-bottom: 2rem; border: 1px solid var(--border-secondary); }
#TOC ul { list-style-type: none; padding-left: 1rem; margin: 0; }
#TOC > ul { padding-left: 0; }
#TOC li { margin: 0.25rem 0; }
#TOC a { color: var(--text-secondary); }
#TOC a:hover { color: var(--link-color); }

/* Inline TOC sections */
.toc-section { background: var(--bg-toc); border: 1px solid var(--border-primary); border-left: 3px solid var(--accent-color); border-radius: 4px; padding: 0.75rem 1rem; margin: 1rem 0 1.5rem; }
.toc-section h2 { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); margin: 0 0 0.5rem; padding: 0; border: none; text-transform: uppercase; letter-spacing: 0.05em; }

/* Two-column TOC */
.toc-inline { list-style: none; padding: 0; margin: 0; column-count: 2; column-gap: 2rem; }
.toc-inline > li { margin: 0; padding: 0.1rem 0; break-inside: avoid; }
.toc-inline > li > a { color: var(--text-primary); font-size: 0.85rem; font-weight: 600; text-decoration: none; display: block; padding: 0.2rem 0 0.1rem; }
.toc-inline > li > a:hover { color: var(--link-color); }
.toc-inline ul { list-style: none; padding: 0 0 0.3rem 0.75rem; margin: 0; border-left: 1px solid var(--border-primary); }
.toc-inline ul li { margin: 0; padding: 0; }
.toc-inline ul a { color: var(--link-color); font-size: 0.8rem; font-weight: 400; text-decoration: none; display: block; padding: 0.05rem 0; line-height: 1.3; }
.toc-inline ul a:hover { text-decoration: underline; }

@media (max-width: 700px) { .toc-inline { column-count: 1; } }

/* Index page TOC */
.toc-list { list-style: none; padding: 0; margin: 0.5rem 0 1.5rem; }
.toc-list li { margin: 0.25rem 0; }
.toc-list a { display: inline-block; padding: 0.3rem 0; color: var(--link-color); font-size: 1rem; }
.toc-list a:hover { text-decoration: underline; }

/* ==========================================================================
   Navigation (multi-page documentation site)
   ========================================================================== */

.doc-container { display: flex; min-height: 100vh; }

.doc-nav {
    width: 260px;
    flex-shrink: 0;
    background: var(--bg-nav);
    border-right: 1px solid var(--border-primary);
    padding: 1rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.doc-nav .nav-header {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    padding: 0.5rem 0.75rem 1rem;
    border-bottom: 1px solid var(--border-primary);
    margin-bottom: 0.5rem;
}

.doc-nav .nav-header a { color: var(--text-primary); text-decoration: none; }
.doc-nav .nav-header a:hover { color: var(--link-color); text-decoration: none; }

.doc-nav .nav-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin: 1.25rem 0 0.5rem;
    padding: 0 0.75rem;
    font-weight: 700;
}

.doc-nav .nav-section:first-of-type h3 { margin-top: 0.5rem; }

.doc-nav ul { list-style: none; padding: 0; margin: 0; }
.doc-nav li { margin: 0; }

.doc-nav a {
    display: block;
    padding: 0.4rem 0.75rem;
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 0.9rem;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.doc-nav a:hover { background: var(--bg-hover); color: var(--text-primary); text-decoration: none; }
.doc-nav a.active { background: var(--active-nav-bg); color: var(--active-nav-text); }

.doc-content { flex: 1; max-width: 800px; padding: 2rem; min-width: 0; }
.doc-container .doc-content { margin: 0; }

/* Responsive: collapse nav */
@media (max-width: 900px) {
    .doc-container { flex-direction: column; }
    .doc-nav { width: 100%; height: auto; max-height: none; position: static; border-right: none; border-bottom: 1px solid var(--border-primary); padding: 1rem; }
    .doc-nav .nav-section { display: inline-block; vertical-align: top; margin-right: 2rem; }
    .doc-content { padding: 1.5rem; }
}

@media (max-width: 768px) {
    main { padding: 1rem; }
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.35rem; }
    pre { padding: 0.75rem; font-size: 0.8rem; }
    .global-toolbar { flex-wrap: wrap; }
    .landing-nav { padding: 0.75rem 1rem; }
    .landing-nav .nav-links { gap: 1rem; }
}

@media print {
    .landing-nav, .doc-nav, .global-toolbar, .editor-toolbar, .theme-switcher { display: none; }
    .doc-container { display: block; }
    .beepscript-editor { border: 1px solid #999; }
}