/* SpecGit — the delivery pipeline, rendered.
   Static, local-only, no scripts, no third-party assets.
   Color system derived from Git orange + terminal ink + verification semantics. */

:root {
  --bg: #0a0e16;
  --bg-2: #0d1320;
  --panel: #111a2b;
  --panel-2: #152034;
  --line: #1e2a40;
  --line-2: #2a3a56;
  --text: #e7edf6;
  --muted: #94a3bb;
  --faint: #5d6b85;

  --git: #ff6a3d;
  --git-2: #f05033;
  --blue: #4d9fff;
  --amber: #ffb020;
  --magenta: #e85d9e;
  --cyan: #2dd4bf;
  --green: #3ddc84;
  --gold: #ffd166;

  --grad-brand: linear-gradient(100deg, #ff6a3d 0%, #e85d9e 48%, #4d9fff 100%);
  --grad-verify: linear-gradient(100deg, #2dd4bf, #3ddc84);

  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;

  --wrap: 1160px;
  --radius: 16px;
  --radius-sm: 10px;
  --header-h: 64px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Layered ambient background: aurora washes + engineering grid + film grain. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60rem 40rem at 12% -8%, rgba(255, 106, 61, 0.16), transparent 60%),
    radial-gradient(52rem 38rem at 92% 4%, rgba(77, 159, 255, 0.14), transparent 62%),
    radial-gradient(48rem 40rem at 70% 108%, rgba(45, 212, 191, 0.10), transparent 60%),
    var(--bg);
  animation: aurora 26s ease-in-out infinite alternate;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 187, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 187, 0.045) 1px, transparent 1px),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  background-size: 56px 56px, 56px 56px, 140px 140px;
  mask-image: radial-gradient(120rem 80rem at 50% 0%, #000 40%, transparent 100%);
}
@keyframes aurora {
  0% { filter: hue-rotate(0deg); transform: translate3d(0, 0, 0) scale(1); }
  100% { filter: hue-rotate(-12deg); transform: translate3d(0, -1.5%, 0) scale(1.05); }
}

::selection { background: rgba(255, 106, 61, 0.32); color: #fff; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--line-2), var(--line));
  border-radius: 8px;
  border: 3px solid var(--bg-2);
}
::-webkit-scrollbar-thumb:hover { background: var(--git-2); }

a { color: var(--blue); text-decoration: none; transition: color 0.18s ease; }
a:hover { color: var(--git); }

code, pre, .mono { font-family: var(--mono); }
code {
  font-size: 0.86em;
  background: rgba(77, 159, 255, 0.10);
  border: 1px solid rgba(77, 159, 255, 0.16);
  padding: 0.1em 0.42em;
  border-radius: 6px;
  color: #cfe0ff;
  white-space: nowrap;
}
pre {
  margin: 0.9rem 0;
  padding: 1rem 1.15rem;
  background: #070b12;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.7;
  color: #b9c6dc;
  position: relative;
}
pre code { background: none; border: none; padding: 0; color: inherit; white-space: pre; }

.wrap { width: min(var(--wrap), 92vw); margin-inline: auto; }

/* Prevent long tokens (terminal commands, code) from blowing out grid/flex tracks. */
.hero-grid > *, .grid > *, .dl-grid > *, .docs-grid > * { min-width: 0; }
.terminal, .term-body { min-width: 0; max-width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(14px) saturate(140%);
  background: rgba(10, 14, 22, 0.72);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 1.5rem; height: 100%; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand:hover { color: var(--text); }
.brand svg { width: 28px; height: 28px; }
.brand .mark-bg { fill: url(#brandGrad); }
.site-header nav { margin-left: auto; display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }
.site-header nav a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  transition: color 0.18s ease, background 0.18s ease;
}
.site-header nav a:hover { color: var(--text); background: rgba(148, 163, 187, 0.08); }
.site-header nav a.language {
  border: 1px solid var(--line-2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.8rem;
}
.site-header nav a.language:hover { border-color: var(--git); color: var(--git); }
.site-header nav a.gh-cta {
  background: var(--grad-brand);
  color: #fff;
  font-weight: 600;
  border: none;
}
.site-header nav a.gh-cta:hover { filter: brightness(1.1); color: #fff; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(4rem, 9vw, 7.5rem) 0 clamp(3rem, 6vw, 5rem); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--git);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 1.2rem;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: var(--grad-brand); border-radius: 2px; }
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 800;
  margin: 0 0 1.3rem;
}
.hero h1 .grad {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lead { font-size: clamp(1.02rem, 1.6vw, 1.2rem); color: var(--muted); max-width: 34rem; margin: 0 0 2rem; }
.actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 0; }
.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.4rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--line-2);
  color: var(--text);
  background: var(--panel);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.button:hover { transform: translateY(-2px); border-color: var(--git); color: var(--text); box-shadow: 0 10px 30px -12px rgba(255, 106, 61, 0.5); }
.button.primary { background: var(--grad-brand); border: none; color: #fff; box-shadow: 0 12px 34px -12px rgba(232, 93, 158, 0.6); }
.button.primary:hover { filter: brightness(1.08); color: #fff; }
.button svg { width: 18px; height: 18px; }

/* Hero terminal */
.terminal {
  background: linear-gradient(180deg, #0c1322, #070b12);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 106, 61, 0.06);
  overflow: hidden;
  position: relative;
}
.terminal::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(255, 106, 61, 0.5), transparent 30%, transparent 70%, rgba(77, 159, 255, 0.4));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.term-bar { display: flex; align-items: center; gap: 0.5rem; padding: 0.8rem 1rem; border-bottom: 1px solid var(--line); background: rgba(148, 163, 187, 0.04); }
.term-dot { width: 11px; height: 11px; border-radius: 50%; }
.term-dot.r { background: #ff5f57; } .term-dot.y { background: #febc2e; } .term-dot.g { background: #28c840; }
.term-title { margin-left: 0.6rem; font-family: var(--mono); font-size: 0.76rem; color: var(--faint); }
.term-body { padding: 1.1rem 1.2rem 1.4rem; font-family: var(--mono); font-size: 0.82rem; line-height: 1.85; }
.term-line { display: block; white-space: pre-wrap; word-break: break-word; }
.term-prompt { color: var(--green); }
.term-cmd { color: var(--text); }
.term-out { color: var(--muted); }
.term-ok { color: var(--green); }
.term-key { color: var(--cyan); }
.term-warn { color: var(--amber); }
.cursor { display: inline-block; width: 8px; height: 1.05em; background: var(--git); vertical-align: text-bottom; margin-left: 2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Floating stage chips around terminal */
.hero-stage { position: relative; }
.chip-float {
  position: absolute;
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(13, 19, 32, 0.9);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  animation: float 6s ease-in-out infinite;
  backdrop-filter: blur(6px);
}
.chip-float .dot { width: 7px; height: 7px; border-radius: 50%; }
.chip-float.c1 { top: -16px; right: 8%; animation-delay: 0s; }
.chip-float.c2 { bottom: -14px; left: -10px; animation-delay: 1.5s; }
.chip-float.c3 { top: -16px; left: 4%; right: auto; animation-delay: 3s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* Hero entrance */
.hero .eyebrow, .hero h1, .hero .lead, .hero .actions, .hero-stage { opacity: 0; animation: rise 0.8s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; }
.hero h1 { animation-delay: 0.08s; }
.hero .lead { animation-delay: 0.16s; }
.hero .actions { animation-delay: 0.24s; }
.hero-stage { animation-delay: 0.32s; }
@keyframes rise { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

/* ---------- Sections ---------- */
section { padding: clamp(3.5rem, 7vw, 6rem) 0; position: relative; }
.section-head { max-width: 46rem; margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.section-tag {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--git);
  margin: 0 0 0.8rem;
}
h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); letter-spacing: -0.025em; font-weight: 800; margin: 0 0 0.9rem; line-height: 1.12; }
.section-head p { color: var(--muted); font-size: 1.05rem; margin: 0; }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; margin: 0 0 0.6rem; font-weight: 700; }

/* ---------- Pipeline ---------- */
.pipeline { position: relative; }
.pipe-track { position: relative; margin-top: 1rem; }
.pipe-track::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(var(--blue), var(--amber), var(--magenta), var(--cyan), var(--green), var(--gold));
  opacity: 0.35;
  border-radius: 2px;
}
.pipe-track::after {
  content: "";
  position: absolute;
  left: 24px;
  top: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--git);
  box-shadow: 0 0 16px 3px rgba(255, 106, 61, 0.7);
  animation: flow 5.5s linear infinite;
}
@keyframes flow {
  0% { top: 0; opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}
.stage { position: relative; padding: 0 0 2.2rem 5rem; }
.stage:last-child { padding-bottom: 0; }
.stage-node {
  position: absolute;
  left: 0;
  top: 0;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: var(--panel);
  border: 1px solid var(--line-2);
  box-shadow: 0 0 0 5px var(--bg);
}
.stage-node svg { width: 26px; height: 26px; }
.stage-num { position: absolute; left: 44px; top: -8px; font-family: var(--mono); font-size: 0.68rem; color: var(--faint); background: var(--bg); padding: 0 4px; }
.stage-card {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}
.stage-card:hover { transform: translateX(6px); border-color: var(--line-2); box-shadow: 0 18px 44px -24px rgba(0, 0, 0, 0.7); }
.stage-card h3 { display: flex; align-items: center; gap: 0.6rem; }
.stage-card h3 .pill { font-family: var(--mono); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.08em; padding: 0.18rem 0.55rem; border-radius: 999px; text-transform: uppercase; }
.stage-card p { color: var(--muted); margin: 0; font-size: 0.96rem; }
.stage-card code { font-size: 0.8em; }
/* stage accent colors */
.s-issue .stage-node { color: var(--blue); border-color: rgba(77, 159, 255, 0.4); }
.s-issue .pill { background: rgba(77, 159, 255, 0.14); color: var(--blue); }
.s-check .stage-node { color: var(--amber); border-color: rgba(255, 176, 32, 0.4); }
.s-check .pill { background: rgba(255, 176, 32, 0.14); color: var(--amber); }
.s-pr .stage-node { color: var(--magenta); border-color: rgba(232, 93, 158, 0.4); }
.s-pr .pill { background: rgba(232, 93, 158, 0.14); color: var(--magenta); }
.s-ci .stage-node { color: var(--cyan); border-color: rgba(45, 212, 191, 0.4); }
.s-ci .pill { background: rgba(45, 212, 191, 0.14); color: var(--cyan); }
.s-merge .stage-node { color: var(--green); border-color: rgba(61, 220, 132, 0.4); }
.s-merge .pill { background: rgba(61, 220, 132, 0.14); color: var(--green); }
.s-verify .stage-node { color: var(--green); border-color: rgba(61, 220, 132, 0.4); }
.s-verify .pill { background: rgba(61, 220, 132, 0.14); color: var(--green); }
.s-release .stage-node { color: var(--gold); border-color: rgba(255, 209, 102, 0.4); }
.s-release .pill { background: rgba(255, 209, 102, 0.14); color: var(--gold); }

/* ---------- Cards grid ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 1.2rem; }
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}
.card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--grad-brand); opacity: 0; transition: opacity 0.22s ease; }
.card:hover { transform: translateY(-5px); border-color: var(--line-2); box-shadow: 0 24px 50px -28px rgba(0, 0, 0, 0.75); }
.card:hover::before { opacity: 1; }
.card .icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; background: rgba(255, 106, 61, 0.1); border: 1px solid rgba(255, 106, 61, 0.22); color: var(--git); margin-bottom: 1rem; }
.card .icon svg { width: 22px; height: 22px; }
.card p { color: var(--muted); font-size: 0.94rem; margin: 0 0 0.8rem; }
.card .note { font-size: 0.84rem; color: var(--faint); border-top: 1px solid var(--line); padding-top: 0.8rem; margin: 0.8rem 0 0; }
.card pre { font-size: 0.76rem; }

/* host accent variants */
.card.h-generic .icon { background: rgba(148, 163, 187, 0.1); border-color: rgba(148, 163, 187, 0.25); color: var(--muted); }
.card.h-claude .icon { background: rgba(255, 106, 61, 0.1); border-color: rgba(255, 106, 61, 0.25); color: var(--git); }
.card.h-codex .icon { background: rgba(61, 220, 132, 0.1); border-color: rgba(61, 220, 132, 0.25); color: var(--green); }
.card.h-opencode .icon { background: rgba(77, 159, 255, 0.1); border-color: rgba(77, 159, 255, 0.25); color: var(--blue); }

/* ---------- Matrix ---------- */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-2); }
table { border-collapse: collapse; width: 100%; min-width: 760px; font-size: 0.88rem; }
thead th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--git);
  padding: 1rem 1.1rem;
  background: rgba(255, 106, 61, 0.06);
  border-bottom: 1px solid var(--line-2);
  white-space: nowrap;
}
tbody td { padding: 0.95rem 1.1rem; border-bottom: 1px solid var(--line); color: var(--muted); vertical-align: top; }
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background 0.16s ease; }
tbody tr:hover { background: rgba(77, 159, 255, 0.05); }
tbody td:first-child { color: var(--text); font-weight: 600; white-space: nowrap; }
.note { color: var(--faint); font-size: 0.88rem; }

/* ---------- Download ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.2rem; margin: 1.5rem 0; }
.dl-card {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: transform 0.22s ease, border-color 0.22s ease;
}
.dl-card:hover { transform: translateY(-5px); border-color: var(--git); }
.dl-card .os { width: 46px; height: 46px; margin: 0 auto 0.9rem; color: var(--git); }
.dl-card .os svg { width: 46px; height: 46px; }
.dl-card h3 { margin-bottom: 0.3rem; }
.dl-card .arch { font-family: var(--mono); font-size: 0.78rem; color: var(--faint); }
.verify-box { background: #070b12; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1.1rem 1.3rem; margin: 1.2rem 0; }
.verify-box .label { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--green); margin: 0 0 0.6rem; display: flex; align-items: center; gap: 0.5rem; }

/* ---------- Docs ---------- */
.docs-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0.8rem; }
.docs-grid a {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.95rem 1.2rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.92rem;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.docs-grid a:hover { transform: translateX(4px); border-color: var(--git); background: var(--panel-2); color: var(--text); }
.docs-grid a .arr { margin-left: auto; color: var(--git); font-family: var(--mono); transition: transform 0.18s ease; }
.docs-grid a:hover .arr { transform: translateX(3px); }
.docs-grid a .di { color: var(--blue); display: inline-flex; }
.docs-grid a .di svg { width: 18px; height: 18px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 2.5rem 0; background: var(--bg-2); }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; justify-content: space-between; }
.site-footer p { color: var(--faint); font-size: 0.86rem; margin: 0; max-width: 46rem; }
.site-footer .foot-brand { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 700; color: var(--muted); }
.site-footer .foot-brand svg { width: 22px; height: 22px; }

/* ---------- Scroll-driven reveals (progressive enhancement) ---------- */
@supports (animation-timeline: view()) {
  .reveal { animation: reveal-in linear both; animation-timeline: view(); animation-range: entry 0% entry 38%; }
  @keyframes reveal-in { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-stage { margin-top: 1rem; }
  .chip-float.c3 { display: none; }
  .site-header nav a:not(.language):not(.gh-cta) { display: none; }
}
@media (max-width: 560px) {
  .stage { padding-left: 4rem; }
  .stage-node { width: 46px; height: 46px; border-radius: 13px; }
  .pipe-track::before { left: 22px; }
  .pipe-track::after { left: 19px; }
  .stage-num { left: 36px; }
  .actions .button { flex: 1 1 auto; justify-content: center; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .hero .eyebrow, .hero h1, .hero .lead, .hero .actions, .hero-stage { opacity: 1; }
  .pipe-track::after { display: none; }
}