/* ============================================================
   NYX-SERVE — product identity stylesheet (dark, single-theme)
   Deliberately distinct from shared/nyx-design-system.css (the
   light system used by nyxlang.com): nyx-serve is the product
   you run in a terminal at 2am — the page lives in that world.
   Palette: blue-black night ground, single warm amber accent.
   Type: Inter (display) + JetBrains Mono (code, protagonist).
   ============================================================ */

:root {
    --bg: #0a0e14;
    --bg-raise: #10151f;
    --bg-code: #0c111a;
    --bg-inline: #161d29;
    --border: #1c2431;
    --border-strong: #2a3444;

    --ink: #e8ebf0;
    --ink-2: #9aa4b2;
    --ink-dim: #5c6774;

    --accent: #fbbf24;          /* warm amber — the one loud thing */
    --accent-strong: #f59e0b;
    --accent-ink: #1a1200;      /* text on amber */
    --accent-soft: rgba(251, 191, 36, 0.12);

    /* syntax (dark) */
    --syn-kw: #b3a5ff;
    --syn-fn: #7db4ff;
    --syn-str: #7ee0a8;
    --syn-num: #f6c667;
    --syn-ty: #f5a3d0;
    --syn-cm: #8b93a7;

    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --maxw: 1060px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-display);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--accent-ink); }

a { color: inherit; text-decoration: none; }

/* ---------- nav ---------- */
nav {
    position: fixed; top: 0; z-index: 50; width: 100%;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.9rem 2rem;
    background: rgba(10, 14, 20, 0.82);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.nav-logo {
    font-family: var(--font-mono); font-weight: 500; font-size: 1.02rem;
    color: var(--ink);
}
.nav-logo .product { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 1.5rem; font-size: 0.92rem; color: var(--ink-2); }
.nav-right a:hover { color: var(--ink); }
.nav-lang { color: var(--ink-dim); font-size: 0.85rem; }
.nav-lang a.active { color: var(--ink); }

/* ---------- shared section scaffolding ---------- */
main { display: block; }
section { padding: 4.5rem 2rem; max-width: var(--maxw); margin: 0 auto; }

.eyebrow {
    font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
}
h2.section-title {
    font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em;
    margin-top: 0.6rem; text-wrap: balance;
}
p.section-lead { color: var(--ink-2); margin-top: 0.7rem; max-width: 620px; }

/* ---------- hero ---------- */
.hero {
    max-width: var(--maxw); margin: 0 auto;
    padding: 9.5rem 2rem 4rem;
    display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 3.5rem; align-items: center;
}
.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.3rem);
    font-weight: 800; letter-spacing: -0.035em; line-height: 1.08;
    text-wrap: balance;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { color: var(--ink-2); margin-top: 1.1rem; font-size: 1.06rem; max-width: 46ch; }
.hero-ctas { display: flex; gap: 0.8rem; margin-top: 1.8rem; flex-wrap: wrap; }

.btn {
    display: inline-block; padding: 0.68rem 1.35rem; border-radius: 6px;
    font-weight: 600; font-size: 0.95rem; border: 1px solid transparent;
    transition: transform 0.12s ease, background 0.12s ease;
}
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-accent:hover { background: var(--accent-strong); }
.btn-ghost { border-color: var(--border-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink-dim); }

.hero-install {
    margin-top: 1.6rem; font-family: var(--font-mono); font-size: 0.8rem;
    color: var(--ink-dim);
}
.hero-install code { color: var(--ink-2); }

/* ---------- code windows ---------- */
.codewin {
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 24px 60px -32px rgba(0, 0, 0, 0.8);
}
.codewin-bar {
    display: flex; align-items: center; gap: 0.45rem;
    padding: 0.6rem 0.9rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-raise);
}
.codewin-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border-strong); }
.codewin-bar .dot:first-child { background: #3d4d63; }
.codewin-bar .title {
    margin-left: 0.5rem; font-family: var(--font-mono);
    font-size: 0.72rem; color: var(--ink-dim);
}
.codewin pre { border: none; border-radius: 0; margin: 0; box-shadow: none; }

pre {
    background: var(--bg-code);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.3rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.65;
    overflow-x: auto;
    color: var(--ink-2);
}
code {
    font-family: var(--font-mono); font-size: 0.85em;
    background: var(--bg-inline); border: 1px solid var(--border);
    border-radius: 4px; padding: 0.1em 0.4em; color: var(--ink);
}
pre code { background: none; border: none; padding: 0; }

/* syntax spans (pre-colored in the HTML) */
.kw  { color: var(--syn-kw); }
.fn  { color: var(--syn-fn); }
.str { color: var(--syn-str); }
.num { color: var(--syn-num); }
.ty  { color: var(--syn-ty); }
.cm  { color: var(--syn-cm); }

/* terminal flavor */
.term .prompt { color: var(--accent); user-select: none; }
.term .out { color: var(--ink-dim); }

/* ---------- stats band ---------- */
.stats {
    max-width: var(--maxw); margin: 0 auto; padding: 0 2rem;
}
.stats-inner {
    display: grid; grid-template-columns: repeat(4, 1fr);
    border: 1px solid var(--border); border-radius: 10px;
    background: var(--bg-raise); overflow: hidden;
}
.stat { padding: 1.4rem 1.2rem; border-left: 1px solid var(--border); }
.stat:first-child { border-left: none; }
.stat .n {
    font-family: var(--font-mono); font-size: 1.45rem; font-weight: 500;
    color: var(--ink); font-variant-numeric: tabular-nums;
}
.stat .n em { font-style: normal; color: var(--accent); }
.stat .l { font-size: 0.8rem; color: var(--ink-dim); margin-top: 0.15rem; }

/* ---------- feature rows ---------- */
.feature {
    display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    gap: 3rem; align-items: start;
}
.feature.flip { grid-template-columns: minmax(0, 6fr) minmax(0, 4fr); }
.feature.flip .feature-copy { order: 2; }
.feature.flip .feature-code { order: 1; }
.feature-copy h3 {
    font-size: 1.35rem; font-weight: 700; letter-spacing: -0.015em;
    margin-top: 0.55rem;
}
.feature-copy p { color: var(--ink-2); margin-top: 0.7rem; font-size: 0.97rem; }
.feature-copy ul { margin: 0.9rem 0 0 1.1rem; color: var(--ink-2); font-size: 0.94rem; }
.feature-copy li { margin-top: 0.35rem; }
.feature-copy li strong { color: var(--ink); font-weight: 600; }

/* ---------- production guardrails ---------- */
.guard-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem;
}
.guard {
    background: var(--bg-raise); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.3rem 1.4rem;
}
.guard .g-code {
    font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent);
}
.guard h4 { font-size: 1rem; font-weight: 600; margin-top: 0.5rem; }
.guard p { font-size: 0.88rem; color: var(--ink-2); margin-top: 0.4rem; }

/* ---------- ecosystem ---------- */
.eco-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 2rem; }
.eco {
    display: block; background: var(--bg-raise); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.3rem 1.4rem;
    transition: border-color 0.15s ease;
}
.eco:hover { border-color: var(--border-strong); }
.eco .e-name { font-family: var(--font-mono); font-size: 0.95rem; color: var(--ink); }
.eco .e-name .product { color: var(--accent); }
.eco p { font-size: 0.88rem; color: var(--ink-2); margin-top: 0.45rem; }

/* ---------- CTA ---------- */
.cta {
    text-align: center;
    border-top: 1px solid var(--border);
    margin-top: 2rem; padding-top: 5rem; padding-bottom: 5.5rem;
    max-width: none;
}
.cta-inner { max-width: 640px; margin: 0 auto; }
.cta h2 { font-size: 2rem; font-weight: 800; letter-spacing: -0.025em; text-wrap: balance; }
.cta p { color: var(--ink-2); margin-top: 0.8rem; }
.cta pre { text-align: left; margin-top: 1.8rem; }
.cta .hero-ctas { justify-content: center; }

/* ---------- footer ---------- */
footer {
    border-top: 1px solid var(--border);
    padding: 2.2rem 2rem; text-align: center;
    font-size: 0.85rem; color: var(--ink-dim);
}
footer a { color: var(--ink-2); }
footer a:hover { color: var(--ink); }

/* ---------- docs pages ---------- */
.docs-layout {
    max-width: var(--maxw); margin: 0 auto;
    padding: 7rem 2rem 4rem;
    display: grid; grid-template-columns: 220px minmax(0, 1fr);
    gap: 3rem; align-items: start;
}
.docs-side {
    position: sticky; top: 5.5rem;
    font-size: 0.9rem;
}
.docs-side .ds-title {
    font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--ink-dim); margin-bottom: 0.8rem;
}
.docs-side ol { list-style: none; counter-reset: doc; }
.docs-side li { counter-increment: doc; margin-top: 0.15rem; }
.docs-side li a {
    display: block; padding: 0.34rem 0.6rem; border-radius: 6px; color: var(--ink-2);
}
.docs-side li a::before {
    content: counter(doc, decimal-leading-zero) "  ";
    font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-dim);
}
.docs-side li a:hover { background: var(--bg-raise); color: var(--ink); }
.docs-side li a.here { background: var(--accent-soft); color: var(--accent); }
.docs-side li a.here::before { color: var(--accent); }

.docs-body { min-width: 0; }
.docs-body h1 {
    font-size: 2rem; font-weight: 800; letter-spacing: -0.025em; text-wrap: balance;
}
.docs-body h2 {
    font-size: 1.3rem; font-weight: 700; letter-spacing: -0.015em;
    margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid var(--border);
}
.docs-body h3 { font-size: 1.05rem; font-weight: 600; margin-top: 1.8rem; }
.docs-body p { color: var(--ink-2); margin-top: 0.8rem; max-width: 72ch; }
.docs-body p strong { color: var(--ink); }
.docs-body ul, .docs-body ol { margin: 0.8rem 0 0 1.2rem; color: var(--ink-2); }
.docs-body li { margin-top: 0.4rem; }
.docs-body pre { margin-top: 1.1rem; }
.docs-body table {
    border-collapse: collapse; margin-top: 1.1rem; font-size: 0.88rem; width: 100%;
    display: block; overflow-x: auto;
}
.docs-body th, .docs-body td {
    border: 1px solid var(--border); padding: 0.5rem 0.8rem; text-align: left;
}
.docs-body th { background: var(--bg-raise); color: var(--ink); font-weight: 600; }
.docs-body td { color: var(--ink-2); }
.docs-body td code, .docs-body th code { white-space: nowrap; }

.docs-note {
    background: var(--accent-soft); border: 1px solid rgba(251, 191, 36, 0.35);
    border-radius: 8px; padding: 0.9rem 1.1rem; margin-top: 1.2rem;
    font-size: 0.9rem; color: var(--ink-2);
}
.docs-note strong { color: var(--accent); }

.docs-nav {
    display: flex; justify-content: space-between; gap: 1rem;
    margin-top: 3rem; padding-top: 1.4rem; border-top: 1px solid var(--border);
    font-size: 0.92rem;
}
.docs-nav a { color: var(--accent); }
.docs-nav a:hover { color: var(--accent-strong); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; padding-top: 7.5rem; gap: 2.2rem; }
    .feature, .feature.flip { grid-template-columns: 1fr; gap: 1.4rem; }
    .feature.flip .feature-copy { order: 1; }
    .feature.flip .feature-code { order: 2; }
    .stats-inner { grid-template-columns: repeat(2, 1fr); }
    .stat { border-top: 1px solid var(--border); }
    .stat:nth-child(-n+2) { border-top: none; }
    .stat:nth-child(odd) { border-left: none; }
    .guard-grid, .eco-grid { grid-template-columns: 1fr; }
    .docs-layout { grid-template-columns: 1fr; padding-top: 6rem; }
    .docs-side { position: static; }
    .hide-mobile { display: none; }
}