/* DVeProto — dark standalone, without the usual AI landing tricks */
:root {
    --bg: #12140f;
    --bg-2: #1a1d16;
    --text: #ebe6d9;
    --muted: #9a9588;
    --line: #2e3228;
    --accent: #c4a35a;
    --accent-2: #8fbc8f;
    --code-bg: #0c0d0a;
    --font-display: 'Bricolage Grotesque', Georgia, serif;
    --font: 'IBM Plex Sans', system-ui, sans-serif;
    --mono: 'IBM Plex Mono', ui-monospace, monospace;
    --max: 920px;
    --pad: max(18px, env(safe-area-inset-left));
    --padr: max(18px, env(safe-area-inset-right));
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text);
    background:
        linear-gradient(180deg, #161912 0%, var(--bg) 40%, #10120d 100%);
    line-height: 1.6;
    min-height: 100dvh;
    font-size: 1.02rem;
}

a { color: var(--accent-2); }
a:hover { color: #b5d6b5; }

code {
    font-family: var(--mono);
    font-size: 0.88em;
    color: #d8d0bc;
    background: rgba(255, 255, 255, 0.04);
    padding: 0.05em 0.28em;
    border-radius: 3px;
}

.top {
    max-width: var(--max);
    margin: 0 auto;
    padding: 16px var(--padr) 16px var(--pad);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 24px;
    border-bottom: 1px solid var(--line);
}

.top-brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: -0.02em;
    color: var(--text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.top-brand:hover { color: var(--accent); }

.brand-mark {
    display: block;
    flex-shrink: 0;
    border-radius: 4px;
}

.brand-mark-lg {
    width: 56px;
    height: 56px;
}

.brand-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 8px;
}

.brand {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 8vw, 3.75rem);
    font-weight: 700;
    letter-spacing: -0.045em;
    line-height: 0.95;
    color: var(--text);
    margin-bottom: 0;
}

.aff {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
    margin-bottom: 16px;
}

.about {
    color: var(--text);
    max-width: 38em;
    margin-bottom: 22px;
    font-size: 1.05rem;
    line-height: 1.55;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.top-right {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px 20px;
}

.top-nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.top-nav a {
    font-size: 0.92rem;
    color: var(--muted);
    text-decoration: none;
}

.top-nav a:hover { color: var(--text); }

.lang-switch {
    display: inline-flex;
    border: 1px solid var(--line);
    background: var(--bg-2);
}

.lang-btn {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    padding: 7px 11px;
    cursor: pointer;
    line-height: 1;
}

.lang-btn:hover { color: var(--text); }

.lang-btn.is-active,
.lang-btn[aria-pressed='true'] {
    background: var(--accent);
    color: #1a160c;
}

.hero {
    max-width: var(--max);
    margin: 0 auto;
    padding: clamp(36px, 7vh, 64px) var(--padr) 28px var(--pad);
    display: grid;
    gap: 32px;
}

@media (min-width: 820px) {
    .hero {
        grid-template-columns: 1.35fr 0.75fr;
        align-items: end;
        gap: 40px;
    }
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.8vw, 1.45rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.3;
    max-width: 16em;
    margin-bottom: 12px;
    color: #f2eee4;
}

.lede {
    color: var(--muted);
    max-width: 36em;
    margin-bottom: 22px;
    font-size: 1.02rem;
}

.cta {
    font-family: var(--mono);
    font-size: 0.88rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px 4px;
}

.cta a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
}

.cta a:hover { color: #dfc787; }

.cta .sep {
    color: var(--line);
    margin: 0 6px;
    user-select: none;
}

.hero-aside {
    border-left: 3px solid var(--accent);
    padding: 4px 0 4px 18px;
    align-self: start;
}

@media (max-width: 819px) {
    .hero-aside {
        border-left: none;
        border-top: 3px solid var(--accent);
        padding: 16px 0 0;
    }
}

.aside-k {
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
}

.aside-list {
    list-style: none;
    font-family: var(--mono);
    font-size: 0.86rem;
    color: var(--text);
    line-height: 1.85;
}

.aside-list code {
    background: none;
    color: var(--accent-2);
    padding: 0;
}

.aside-note {
    margin-top: 12px;
    font-size: 0.82rem;
    color: var(--muted);
}

.toc {
    max-width: var(--max);
    margin: 0 auto 8px;
    padding: 14px var(--padr) 14px var(--pad);
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.toc a {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
    text-decoration: none;
}

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

.ver-tabs {
    display: inline-flex;
    margin: 0.4rem 0 1rem;
    border: 1px solid var(--line);
    background: var(--bg-2);
}

.ver-tab {
    appearance: none;
    border: 0;
    background: transparent;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 10px 20px;
    cursor: pointer;
    line-height: 1;
}

.ver-tab:hover { color: var(--text); }

.ver-tab.is-active,
.ver-tab[aria-selected='true'] {
    background: var(--accent);
    color: #1a160c;
}

.ver-panel {
    display: none;
    margin-bottom: 0.5rem;
    padding: 4px 0 8px;
}

.ver-panel.is-active {
    display: block;
}

.ver-panel h3 {
    font-family: var(--font-display);
    font-size: 1.12rem;
    font-weight: 700;
    margin: 0.2rem 0 0.7rem;
    color: #f2eee4;
}

.ver-panel h4 {
    font-size: 0.98rem;
    font-weight: 600;
    margin: 1.2rem 0 0.5rem;
    color: var(--accent-2);
}

.doc {
    max-width: var(--max);
    margin: 0 auto 40px;
    padding: 8px var(--padr) 32px var(--pad);
}

.doc h2 {
    font-family: var(--font-display);
    font-size: 1.28rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 2.1rem 0 0.65rem;
    scroll-margin-top: 12px;
    color: #f2eee4;
}

.doc h2:first-child { margin-top: 1.4rem; }

.doc h3 {
    font-size: 1.02rem;
    font-weight: 600;
    margin: 1.15rem 0 0.4rem;
    color: var(--accent-2);
}

.doc p { margin-bottom: 0.85rem; }

.doc ul, .doc ol {
    margin: 0.35rem 0 1rem 1.2rem;
}

.doc li { margin-bottom: 0.35rem; }

.doc a {
    text-underline-offset: 2px;
}

.code {
    display: block;
    margin: 0.9rem 0;
    padding: 12px 14px;
    font-family: var(--mono);
    font-size: 0.8rem;
    line-height: 1.5;
    color: #d6d0c2;
    background: var(--code-bg);
    border: 1px solid var(--line);
    border-radius: 2px;
    overflow-x: auto;
    white-space: pre;
}

.table-wrap {
    overflow-x: auto;
    margin: 0.9rem 0;
    border: 1px solid var(--line);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 360px;
}

th, td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

th {
    font-family: var(--mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--muted);
    background: var(--bg-2);
}

tr:last-child td { border-bottom: none; }

.foot {
    max-width: var(--max);
    margin: 0 auto;
    padding: 24px var(--padr) calc(24px + env(safe-area-inset-bottom)) var(--pad);
    border-top: 1px solid var(--line);
}

.foot-brand {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.foot-aff {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--muted);
}