:root {
  --bg: #090b10;
  --bg-2: #10141d;
  --panel: rgba(16, 20, 29, 0.84);
  --panel-strong: #131925;
  --line: rgba(255, 255, 255, 0.12);
  --text: #f4f7fb;
  --muted: #a7b0c0;
  --muted-2: #717b8d;
  --page-accent: #27e4ff;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.34);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(135deg, rgba(39, 228, 255, 0.08), transparent 38%),
    linear-gradient(225deg, rgba(255, 122, 102, 0.07), transparent 42%),
    var(--bg);
  background-size: 56px 56px, 56px 56px, auto, auto, auto;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
code, pre, .copy-line, .section-label, .card-kicker { font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace; }

.site-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 12px 0 44px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(9, 11, 16, 0.76);
  backdrop-filter: blur(16px);
}

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 7px;
  color: #0a0d13;
  background: var(--page-accent);
  box-shadow: 0 0 26px color-mix(in srgb, var(--page-accent), transparent 62%);
}

.topnav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.topnav a {
  padding: 8px 10px;
  border-radius: 7px;
  color: var(--muted);
  transition: color .18s ease, background .18s ease, transform .18s ease;
}
.topnav a:hover, .topnav a.is-active { color: var(--text); background: rgba(255, 255, 255, 0.08); transform: translateY(-1px); }

main { padding-bottom: 56px; }
.hero {
  max-width: 900px;
  padding: 28px 0 34px;
}
.hero-wide { max-width: 1040px; }
.eyebrow, .section-label {
  color: var(--page-accent);
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
}
h1, h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.04;
  font-family: "Space Grotesk", Inter, ui-sans-serif, system-ui, sans-serif;
  overflow-wrap: anywhere;
  word-break: break-word;
}
h1 { margin-top: 12px; font-size: 5.2rem; max-width: 10ch; }
.hero-wide h1 { max-width: 12ch; }
h2 { font-size: 2rem; }
.hero p, .section-head p, .panel p, .footer span {
  color: var(--muted);
  line-height: 1.8;
  font-size: 1rem;
}
.hero p { max-width: 760px; font-size: 1.18rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  font-weight: 800;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.button.primary { background: var(--page-accent); color: #090b10; border-color: transparent; }
.button:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--page-accent), white 12%); }

.quick-grid, .content-grid, .doc-grid, .advice-grid {
  display: grid;
  gap: 14px;
}
.quick-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 20px 0 28px; }
.content-grid { grid-template-columns: minmax(0, 1.45fr) minmax(280px, .72fr); margin: 14px 0; align-items: stretch; }
.doc-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.doc-grid.trio { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.advice-grid { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

.metric-card, .panel, .doc-card, .advice-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}
.metric-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-height: 116px;
  padding: 18px;
}
.metric-card span, .card-kicker { color: var(--muted-2); font-size: .82rem; font-weight: 800; }
.metric-card strong { font-size: 1.35rem; }
.copy-line, .jump-line {
  width: fit-content;
  max-width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--text);
  background: rgba(255,255,255,0.05);
  text-align: left;
  cursor: pointer;
  overflow-wrap: anywhere;
}
.jump-line { display: inline-flex; cursor: pointer; }
.copy-line:hover, .jump-line:hover { border-color: var(--page-accent); color: var(--page-accent); }

.panel { padding: 24px; overflow: hidden; }
.panel h2 { margin: 8px 0 18px; }
.steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 8px;
  background: rgba(255,255,255,0.035);
}
.steps li::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 7px;
  background: color-mix(in srgb, var(--page-accent), transparent 78%);
  color: var(--page-accent);
  font-weight: 900;
  grid-row: 1 / span 2;
}
.steps strong, .steps span { grid-column: 2; }
.steps strong { margin: 0; }
.steps span, .model-list span, .advice-grid span { color: var(--muted); line-height: 1.7; }
.steps a, .panel a:not(.button):not(.jump-line) { color: var(--page-accent); text-decoration: underline; text-underline-offset: 3px; }

.terminal {
  margin-top: 18px;
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 8px;
  background: #07090e;
  overflow: hidden;
}
.terminal-tabs { display: flex; gap: 7px; padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.terminal-tabs span { width: 9px; height: 9px; border-radius: 50%; background: var(--page-accent); opacity: .7; }
pre { margin: 0; padding: 16px; overflow-x: auto; color: #d9f7ff; line-height: 1.7; }

.model-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.model-list li, .advice-grid article {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  background: rgba(255,255,255,0.035);
}

.faq-list { display: grid; gap: 10px; }
details {
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  background: rgba(255,255,255,0.035);
}
summary { cursor: pointer; padding: 16px; font-weight: 850; }
details p { margin: 0; padding: 0 16px 16px; }

.doc-section { margin: 34px 0; }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 18px; margin-bottom: 16px; }
.section-head p { max-width: 520px; margin: 0; }
.doc-card {
  position: relative;
  display: flex;
  min-height: 210px;
  flex-direction: column;
  justify-content: end;
  gap: 12px;
  padding: 20px;
  overflow: hidden;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.doc-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--card-accent, var(--page-accent));
}
.doc-card strong { font-size: 1.22rem; line-height: 1.35; }
.doc-card span:last-child { color: var(--muted); line-height: 1.65; }
.doc-card:hover {
  transform: translateY(-3px);
  border-color: var(--card-accent, var(--page-accent));
  background: color-mix(in srgb, var(--panel-strong), var(--card-accent, var(--page-accent)) 10%);
}

.accent-amber{--card-accent:#f5b041}.accent-blue{--card-accent:#5bbcff}.accent-coral{--card-accent:#ff7a66}.accent-cyan{--card-accent:#27e4ff}.accent-gold{--card-accent:#ffd166}.accent-indigo{--card-accent:#8a8dff}.accent-lime{--card-accent:#a3ff61}.accent-mint{--card-accent:#55f0b0}.accent-purple{--card-accent:#b56cff}.accent-red{--card-accent:#ff5c7c}.accent-rose{--card-accent:#ff6fa9}.accent-sky{--card-accent:#64d8ff}.accent-teal{--card-accent:#36f2d0}.accent-violet{--card-accent:#a985ff}

.link-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.link-cloud a {
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: var(--muted);
  background: rgba(255,255,255,0.045);
  transition: color .18s ease, border-color .18s ease, transform .18s ease;
}
.link-cloud a:hover { color: var(--text); border-color: var(--page-accent); transform: translateY(-1px); }
.disclaimer { color: var(--muted-2); line-height: 1.7; margin: 20px 0 0; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0 42px;
  border-top: 1px solid var(--line);
}
.footer div:first-child { display: grid; gap: 8px; max-width: 620px; }
.footer-links { display: flex; gap: 12px; flex-wrap: wrap; align-items: start; }
.footer a { color: var(--muted); }
.footer a:hover { color: var(--page-accent); }

@media (max-width: 820px) {
  .site-shell { width: min(100% - 22px, 1180px); }
  .topbar { position: static; align-items: flex-start; flex-direction: column; margin-bottom: 26px; }
  .quick-grid, .content-grid, .section-head, .footer { grid-template-columns: 1fr; flex-direction: column; align-items: stretch; }
  .quick-grid { grid-template-columns: 1fr; }
  h1 { font-size: 3.2rem; }
  h2 { font-size: 1.55rem; }
  h1 { max-width: 100%; }
  .panel { padding: 18px; }
}

@media (max-width: 460px) {
  h1 { font-size: 2.15rem; line-height: 1.12; }
  .hero p { font-size: 1.04rem; }
  .topnav a { padding: 7px 9px; }
  .button { width: 100%; }
}