/* ================================================================
   sandpit docs — National Treasure theme
   "I'm gonna sandbox the Declaration of Independence."
   ================================================================ */

:root {
    /* Parchment palette */
    --parchment:       #f5f0e1;
    --parchment-dark:  #e8dfc8;
    --parchment-edge:  #d4c9a8;
    --ink:             #2c1810;
    --ink-light:       #4a3728;
    --ink-muted:       #7a6652;
    --gold:            #b8860b;
    --gold-light:      #d4a843;
    --gold-dark:       #8b6508;
    --seal-red:        #8b1a1a;
    --seal-red-light:  #a52a2a;
    --vault-blue:      #1a3a5c;
    --vault-blue-light:#2a5a8c;
    --success:         #2d5016;
    --danger:          #8b1a1a;
    --code-bg:         #2c1810;
    --code-fg:         #e8dfc8;

    /* Typography */
    --font-display:    'Cinzel', serif;
    --font-body:       'Crimson Text', serif;
    --font-mono:       'JetBrains Mono', monospace;

    /* Sizing */
    --container-max:   1100px;
    --section-padding: 5rem 0;
}

/* ── Reset ──────────────────────────────────────────────────────── */

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

html {
    scroll-behavior: smooth;
    font-size: 18px;
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: var(--parchment);
    line-height: 1.7;
    position: relative;
    overflow-x: hidden;
}

/* ── Parchment texture ──────────────────────────────────────────── */

.parchment-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(139,107,60,0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139,107,60,0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, rgba(139,107,60,0.05) 0%, transparent 50%);
}

/* ── Container ──────────────────────────────────────────────────── */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

/* ── Navigation ─────────────────────────────────────────────────── */

.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--ink);
    border-bottom: 3px solid var(--gold);
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    height: 60px;
    gap: 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--gold-light);
    flex-shrink: 0;
}

.nav-logo .seal {
    font-size: 1.4rem;
}

.nav-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.2em;
    color: var(--parchment);
}

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

.nav-links a {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--parchment-edge);
    text-decoration: none;
    padding: 0.3rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--gold-light);
    border-bottom-color: var(--gold);
}

.nav-github {
    color: var(--parchment-edge);
    margin-left: 1rem;
    transition: color 0.2s;
    flex-shrink: 0;
}

.nav-github:hover {
    color: var(--gold-light);
}

/* ── Hero ───────────────────────────────────────────────────────── */

.hero {
    background:
        linear-gradient(180deg,
            var(--ink) 0%,
            #3a2818 40%,
            var(--ink-light) 100%);
    padding: 5rem 2rem 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 20%, rgba(184,134,11,0.08) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(184,134,11,0.05) 0%, transparent 40%);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-seal {
    margin-bottom: 2rem;
}

.seal-outer {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    padding: 1.2rem 2rem;
    border: 2px solid var(--gold-dark);
    border-radius: 50%;
    width: 140px;
    height: 140px;
    justify-content: center;
}

.seal-text-top, .seal-text-bottom {
    font-family: var(--font-display);
    font-size: 0.45rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
}

.seal-icon {
    font-size: 2.5rem;
    line-height: 1;
}

.hero-title {
    font-family: var(--font-display);
    color: var(--parchment);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-the, .hero-of {
    display: block;
    font-size: 1rem;
    font-weight: 400;
    color: var(--gold);
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.hero-declaration {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    background: linear-gradient(180deg, var(--parchment) 0%, var(--gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-rest {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--parchment);
    letter-spacing: 0.05em;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-style: italic;
    color: var(--parchment-edge);
    font-size: 1.1rem;
    line-height: 1.6;
}

.hero-attribution {
    font-size: 0.85rem;
    color: var(--ink-muted);
}

.hero-scroll-ornament {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2.5rem;
    justify-content: center;
}

.ornament-line {
    height: 1px;
    width: 80px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.ornament-diamond {
    color: var(--gold);
    font-size: 0.7rem;
}

/* ── Section headers ────────────────────────────────────────────── */

.section-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    justify-content: center;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--ink);
    text-align: center;
    white-space: nowrap;
}

.section-header .ornament-line {
    flex: 1;
    max-width: 120px;
}

.section-intro {
    text-align: center;
    font-style: italic;
    color: var(--ink-muted);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* ── Preamble ───────────────────────────────────────────────────── */

.preamble {
    padding: var(--section-padding);
    background: var(--parchment);
}

.preamble-text {
    max-width: 750px;
    margin: 0 auto 3rem;
    text-align: center;
    font-size: 1.15rem;
}

.dropcap::first-letter {
    float: left;
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 0.8;
    padding: 0.1rem 0.5rem 0 0;
    color: var(--seal-red);
}

.quick-start {
    max-width: 600px;
    margin: 0 auto;
    background: var(--code-bg);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--gold-dark);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.quick-start-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    background: rgba(184,134,11,0.15);
    border-bottom: 1px solid var(--gold-dark);
}

.quick-start-header h3 {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold-light);
}

.quick-start pre {
    padding: 1.2rem 1.5rem;
    margin: 0;
}

.quick-start code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--code-fg);
    line-height: 1.8;
}

.cmd-comment {
    color: var(--ink-muted);
}

/* ── Articles (features) ────────────────────────────────────────── */

.articles {
    padding: var(--section-padding);
    background: var(--parchment-dark);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.article-card {
    background: var(--parchment);
    border: 1px solid var(--parchment-edge);
    border-radius: 6px;
    padding: 2rem;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.article-numeral {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: var(--gold);
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    opacity: 0.3;
}

.article-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    margin-bottom: 0.6rem;
    color: var(--ink);
}

.article-card p {
    color: var(--ink-light);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.article-mechanism {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-muted);
    border-top: 1px solid var(--parchment-edge);
    padding-top: 0.7rem;
}

/* ── Treasure Map (architecture) ────────────────────────────────── */

.treasure-map {
    padding: var(--section-padding);
    background: var(--parchment);
}

.map-layers {
    max-width: 700px;
    margin: 0 auto 3rem;
}

.map-layer {
    padding: 1.5rem 2rem;
    border-radius: 8px;
    border: 2px solid;
    position: relative;
}

.layer-dyld {
    border-color: var(--gold);
    background: linear-gradient(135deg, rgba(184,134,11,0.06), rgba(184,134,11,0.02));
}

.layer-seatbelt {
    border-color: var(--vault-blue);
    background: linear-gradient(135deg, rgba(26,58,92,0.06), rgba(26,58,92,0.02));
}

.layer-adversary {
    border-color: var(--seal-red);
    background: linear-gradient(135deg, rgba(139,26,26,0.06), rgba(139,26,26,0.02));
}

.layer-badge {
    font-family: var(--font-display);
    font-size: 0.6rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.15rem 0.6rem;
    border-radius: 3px;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.layer-dyld .layer-badge {
    background: var(--gold);
    color: white;
}

.layer-seatbelt .layer-badge {
    background: var(--vault-blue);
    color: white;
}

.layer-adversary .layer-badge {
    background: var(--seal-red);
    color: white;
}

.map-layer h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.map-layer p {
    color: var(--ink-light);
    font-size: 0.95rem;
    margin-bottom: 0.7rem;
}

.layer-covers {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--ink-muted);
}

.map-connector {
    text-align: center;
    color: var(--ink-muted);
    font-size: 1.2rem;
    padding: 0.3rem 0;
}

.map-auto-detect {
    max-width: 700px;
    margin: 0 auto;
    background: var(--code-bg);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    border: 1px solid var(--gold-dark);
}

.map-auto-detect h4 {
    font-family: var(--font-display);
    color: var(--gold-light);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.map-auto-detect p {
    color: var(--parchment-edge);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.map-auto-detect pre {
    margin: 0;
}

.map-auto-detect code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--code-fg);
    line-height: 1.7;
}

/* ── Keepers (agents) ───────────────────────────────────────────── */

.keepers {
    padding: var(--section-padding);
    background: var(--parchment-dark);
}

.keepers-table-wrapper {
    overflow-x: auto;
}

.keepers-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.keepers-table thead {
    background: var(--ink);
    color: var(--parchment);
}

.keepers-table th {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.8rem 1rem;
    text-align: left;
}

.keepers-table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--parchment-edge);
}

.keepers-table tbody tr:hover {
    background: rgba(184,134,11,0.06);
}

.keepers-table .row-muted td {
    color: var(--ink-muted);
    font-style: italic;
}

/* ── Heist (performance) ────────────────────────────────────────── */

.heist {
    padding: var(--section-padding);
    background: var(--parchment);
}

.heist-results {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.heist-card {
    background: var(--parchment-dark);
    border: 1px solid var(--parchment-edge);
    border-radius: 8px;
    padding: 1.5rem;
}

.heist-agent {
    font-family: var(--font-display);
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.heist-bar-container {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 0.7rem;
}

.heist-bar {
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding: 0 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    min-width: 60px;
}

.heist-bar-with {
    background: linear-gradient(90deg, var(--seal-red), var(--seal-red-light));
}

.heist-bar-without {
    background: linear-gradient(90deg, var(--vault-blue), var(--vault-blue-light));
}

.heist-stats {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-muted);
}

.heist-note {
    text-align: center;
    color: var(--ink-muted);
    font-size: 0.85rem;
    margin-top: 1.5rem;
    font-style: italic;
}

/* ── Cipher (config) ────────────────────────────────────────────── */

.cipher {
    padding: var(--section-padding);
    background: var(--parchment-dark);
}

.cipher-code {
    max-width: 650px;
    margin: 0 auto 2.5rem;
    background: var(--code-bg);
    border: 1px solid var(--gold-dark);
    border-radius: 8px;
    padding: 1.5rem 2rem;
    overflow-x: auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.cipher-code code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.8;
    color: var(--code-fg);
}

.toml-section { color: var(--gold-light); }
.toml-key { color: #a5c7e0; }
.toml-string { color: #a8c97a; }

.cipher-sections {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 700px;
    margin: 0 auto;
}

.cipher-item {
    padding: 1rem 1.2rem;
    background: var(--parchment);
    border: 1px solid var(--parchment-edge);
    border-radius: 6px;
}

.cipher-item h4 {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--gold-dark);
    margin-bottom: 0.3rem;
}

.cipher-item p {
    font-size: 0.9rem;
    color: var(--ink-light);
}

/* ── Matrix ─────────────────────────────────────────────────────── */

.matrix {
    padding: var(--section-padding);
    background: var(--parchment);
}

.matrix-table-wrapper {
    overflow-x: auto;
    max-width: 800px;
    margin: 0 auto;
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.matrix-table thead {
    background: var(--ink);
    color: var(--parchment);
}

.matrix-table th {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.8rem 1rem;
    text-align: left;
}

.matrix-table td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--parchment-edge);
}

.matrix-table .check {
    color: var(--success);
}

.matrix-table .cross {
    color: var(--danger);
}

/* ── Commands ───────────────────────────────────────────────────── */

.commands {
    padding: var(--section-padding);
    background: var(--parchment-dark);
}

.commands-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}

.command-card {
    background: var(--parchment);
    border: 1px solid var(--parchment-edge);
    border-radius: 6px;
    padding: 1.2rem 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.command-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.command-name {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gold-dark);
    display: block;
    margin-bottom: 0.5rem;
}

.command-card p {
    font-size: 0.9rem;
    color: var(--ink-light);
}

/* ── Footer ─────────────────────────────────────────────────────── */

.footer {
    background: var(--ink);
    color: var(--parchment-edge);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-seal {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.footer-text p {
    font-style: italic;
    font-size: 1rem;
    margin-bottom: 0.8rem;
    color: var(--parchment-edge);
}

.footer-links {
    font-style: normal !important;
    font-size: 0.85rem !important;
}

.footer-links a {
    color: var(--gold);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--gold-light);
    text-decoration: underline;
}

.footer-copy {
    font-size: 0.8rem !important;
    color: var(--ink-muted) !important;
    font-style: normal !important;
}

/* ── Inline code ────────────────────────────────────────────────── */

:not(pre) > code {
    font-family: var(--font-mono);
    font-size: 0.82em;
    background: rgba(44,24,16,0.08);
    padding: 0.1em 0.35em;
    border-radius: 3px;
    color: var(--ink);
}

/* ── Sub-page styling ───────────────────────────────────────────── */

.page-content {
    padding: var(--section-padding);
    min-height: calc(100vh - 60px - 200px);
}

.page-content h1 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.page-content .page-subtitle {
    text-align: center;
    font-style: italic;
    color: var(--ink-muted);
    margin-bottom: 3rem;
    font-size: 1.05rem;
}

.page-content h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    margin: 2.5rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--parchment-edge);
    color: var(--ink);
}

.page-content h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    margin: 1.5rem 0 0.8rem;
    color: var(--ink);
}

.page-content p {
    margin-bottom: 1rem;
    color: var(--ink-light);
}

.page-content ul, .page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    color: var(--ink-light);
}

.page-content li {
    margin-bottom: 0.3rem;
}

.page-content pre {
    background: var(--code-bg);
    border: 1px solid var(--gold-dark);
    border-radius: 8px;
    padding: 1.2rem 1.5rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

.page-content pre code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--code-fg);
    line-height: 1.7;
}

.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.page-content thead {
    background: var(--ink);
    color: var(--parchment);
}

.page-content th {
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.7rem 1rem;
    text-align: left;
}

.page-content td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--parchment-edge);
}

.page-content blockquote {
    border-left: 3px solid var(--gold);
    padding: 0.5rem 1.5rem;
    margin: 1.5rem 0;
    background: rgba(184,134,11,0.06);
    border-radius: 0 6px 6px 0;
    font-style: italic;
}

/* ── FAQ specific ───────────────────────────────────────────────── */

.faq-item {
    background: var(--parchment-dark);
    border: 1px solid var(--parchment-edge);
    border-radius: 8px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.2rem 1.5rem;
    text-align: left;
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--ink);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.faq-question:hover {
    background: rgba(184,134,11,0.06);
}

.faq-arrow {
    transition: transform 0.3s;
    color: var(--gold);
}

.faq-item.open .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 1000px;
}

.faq-answer-inner {
    padding: 0 1.5rem 1.5rem;
}

/* ── Responsive ─────────────────────────────────────────────────── */

@media (max-width: 768px) {
    html { font-size: 16px; }

    .hero-declaration { font-size: 2rem; }
    .hero-rest { font-size: 1.3rem; }

    .articles-grid,
    .cipher-sections {
        grid-template-columns: 1fr;
    }

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

    .nav-links {
        gap: 0.8rem;
    }

    .nav-links a {
        font-size: 0.6rem;
    }

    .section-header h2 {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .commands-grid {
        grid-template-columns: 1fr;
    }

    .nav-inner {
        padding: 0 1rem;
    }

    .nav-links {
        gap: 0.5rem;
    }

    .seal-outer {
        width: 110px;
        height: 110px;
    }
}