/* ============================================================
   RepoKit marketing site — design system
   Direction: dark, precise, developer-tool obsidian. Built from
   the product's own brand marks (violet→pink graph-node icon),
   not a stock template palette.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* Palette — sampled from the product's own icon/marquee art */
  --bg: #0b0710;
  --bg-raise: #120b1c;
  --surface: #161022;
  --surface-2: #1e1730;
  --surface-border: #2a2140;
  --text: #f1eef7;
  --text-muted: #9c93b0;
  --text-dim: #6f6685;
  --accent-1: #7c6fe8;   /* violet */
  --accent-2: #b06fe8;   /* mid */
  --accent-3: #e85fa0;   /* pink */
  --accent-gradient: linear-gradient(90deg, var(--accent-1), var(--accent-3));
  --accent-gradient-soft: linear-gradient(135deg, rgba(124,111,232,0.16), rgba(232,95,160,0.10));
  --github-green: #3fb950;
  --github-orange: #d29922;
  --danger: #f0616d;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'IBM Plex Sans', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --container: 1180px;
  --shadow-lift: 0 20px 60px -20px rgba(0,0,0,0.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Signature background: node-graph mesh ---------- */
.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(600px 400px at 12% -5%, rgba(124,111,232,0.28), transparent 60%),
    radial-gradient(700px 500px at 110% 10%, rgba(232,95,160,0.16), transparent 55%),
    radial-gradient(500px 400px at 50% 120%, rgba(176,111,232,0.14), transparent 60%),
    var(--bg);
}
.mesh-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(241,238,247,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(241,238,247,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 75%);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1.1em; color: var(--text-muted); }
strong { color: var(--text); }
a { color: inherit; }
code, .mono { font-family: var(--font-mono); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.prose p { color: var(--text-muted); }
.prose strong { color: var(--text); font-weight: 600; }
.prose h2 { margin-top: 2.4em; color: var(--text); }
.prose h3 { margin-top: 1.8em; color: var(--text); }
.prose ul, .prose ol { color: var(--text-muted); padding-left: 1.3em; }
.prose li { margin-bottom: 0.5em; }
.prose a.inline-link { color: var(--accent-2); text-decoration: underline; text-decoration-color: rgba(176,111,232,0.4); text-underline-offset: 3px; }
.prose a.inline-link:hover { text-decoration-color: var(--accent-3); }

/* ---------- Top nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  background: rgba(11,7,16,0.72);
  border-bottom: 1px solid rgba(241,238,247,0.06);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; text-decoration: none; color: var(--text); flex-shrink: 0; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.brand .kit { background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a { font-size: 0.92rem; color: var(--text-muted); text-decoration: none; padding: 8px 12px; border-radius: 8px; transition: color .15s, background .15s; white-space: nowrap; }
.main-nav a:hover { color: var(--text); background: rgba(241,238,247,0.06); }
.nav-cta { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }

.dropdown { position: relative; }
.dropdown > button { font: inherit; font-size: 0.92rem; color: var(--text-muted); background: none; border: none; padding: 8px 12px; border-radius: 8px; cursor: pointer; display: flex; align-items: center; gap: 4px; }
.dropdown > button:hover { color: var(--text); background: rgba(241,238,247,0.06); }
.dropdown-panel {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: var(--surface-2); border: 1px solid var(--surface-border);
  border-radius: var(--radius-md); padding: 10px; min-width: 260px;
  box-shadow: var(--shadow-lift);
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .15s ease, transform .15s ease, visibility .15s;
}
.dropdown:hover .dropdown-panel, .dropdown:focus-within .dropdown-panel { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-panel a { display: block; padding: 9px 10px; border-radius: 7px; font-size: 0.88rem; color: var(--text-muted); text-decoration: none; }
.dropdown-panel a:hover { background: rgba(124,111,232,0.12); color: var(--text); }
.dropdown-panel .grp-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); padding: 8px 10px 4px; }

.mobile-toggle { display: none; background: none; border: 1px solid var(--surface-border); color: var(--text); width: 40px; height: 40px; border-radius: 8px; cursor: pointer; align-items: center; justify-content: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.98rem;
  padding: 13px 22px; border-radius: 11px; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent-gradient); color: #100822;
  box-shadow: 0 10px 30px -8px rgba(124,111,232,0.55);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 14px 36px -8px rgba(232,95,160,0.55); }
.btn-primary svg { flex-shrink: 0; }
.btn-secondary { background: rgba(241,238,247,0.04); color: var(--text); border-color: var(--surface-border); }
.btn-secondary:hover { background: rgba(241,238,247,0.08); border-color: rgba(241,238,247,0.2); }
.btn-lg { padding: 16px 30px; font-size: 1.05rem; border-radius: 13px; }
.btn-sm { padding: 9px 16px; font-size: 0.86rem; border-radius: 9px; }
.btn-block { width: 100%; }

.chrome-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--text-dim); }
.stars { display: inline-flex; gap: 2px; color: var(--github-orange); }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 40px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  color: var(--accent-2); background: rgba(124,111,232,0.1); border: 1px solid rgba(124,111,232,0.25);
  padding: 6px 12px; border-radius: 100px; margin-bottom: 22px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--github-green); box-shadow: 0 0 0 3px rgba(63,185,80,0.2); }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.hero h1 span.grad { background: var(--accent-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lede { font-size: 1.15rem; max-width: 52ch; }
.hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 30px; }
.hero-meta { display: flex; gap: 36px; margin-top: 34px; flex-wrap: wrap; }
.hero-meta .stat { min-width: 100px; }
.hero-meta .stat b { display: block; font-family: var(--font-display); font-size: 1.5rem; color: var(--text); margin-bottom: 2px; }
.hero-meta .stat span { display: block; font-size: 0.8rem; color: var(--text-dim); white-space: nowrap; }

/* ---------- Browser chrome frame for screenshots ---------- */
.browser-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow-lift);
}
.browser-chrome {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; background: var(--bg-raise); border-bottom: 1px solid var(--surface-border);
}
.browser-dots { display: flex; gap: 6px; }
.browser-dots span { width: 10px; height: 10px; border-radius: 50%; background: #34293f; }
.browser-url { flex: 1; font-family: var(--font-mono); font-size: 0.76rem; color: var(--text-dim); background: rgba(241,238,247,0.04); border-radius: 6px; padding: 5px 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.browser-frame img { display: block; width: 100%; height: auto; }
.frame-glow { position: relative; }
.frame-glow::before {
  content: ""; position: absolute; inset: -40px; z-index: -1;
  background: radial-gradient(circle at 30% 20%, rgba(124,111,232,0.35), transparent 60%);
  filter: blur(30px);
}

/* ---------- Section scaffolding ---------- */
section { padding: 84px 0; position: relative; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 12px; display: block; }

/* ---------- Feature grid ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.feature-card {
  background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md);
  padding: 24px; text-decoration: none; color: inherit; transition: border-color .15s, transform .15s, background .15s;
  display: flex; flex-direction: column; gap: 10px;
}
.feature-card:hover { border-color: rgba(124,111,232,0.5); transform: translateY(-3px); background: var(--surface-2); }
.feature-icon { width: 38px; height: 38px; border-radius: 10px; background: var(--accent-gradient-soft); display: flex; align-items: center; justify-content: center; color: var(--accent-2); border: 1px solid rgba(124,111,232,0.25); }
.feature-card h3 { font-size: 1.02rem; margin-bottom: 2px; }
.feature-card p { font-size: 0.9rem; margin: 0; }

/* ---------- Node-graph divider (signature motif) ---------- */
.graph-divider { display: flex; align-items: center; justify-content: center; gap: 0; margin: 8px 0 56px; opacity: 0.7; }
.graph-divider svg { width: 100%; max-width: 420px; height: 28px; }

/* ---------- Steps ---------- */
.steps { counter-reset: step; display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 26px 0; border-top: 1px solid var(--surface-border); }
.step:first-child { border-top: none; }
.step-num { counter-increment: step; font-family: var(--font-mono); font-size: 0.95rem; color: var(--accent-2); }
.step-num::before { content: counter(step, decimal-leading-zero); }
.step h3 { margin-bottom: 6px; }

/* ---------- Comparison table ---------- */
.compare-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md); overflow: hidden; }
.compare-table th, .compare-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--surface-border); font-size: 0.94rem; }
.compare-table th { font-family: var(--font-display); color: var(--text); background: var(--surface-2); font-weight: 600; }
.compare-table td { color: var(--text-muted); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table .yes { color: var(--github-green); font-weight: 600; }
.compare-table .no { color: var(--text-dim); }
.compare-table .col-repokit { background: rgba(124,111,232,0.06); }

/* ---------- CTA band ---------- */
.cta-band {
  border-radius: var(--radius-lg); padding: 56px; text-align: center;
  background: var(--surface); border: 1px solid var(--surface-border); position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(500px 260px at 50% -20%, rgba(124,111,232,0.28), transparent 65%);
}
.cta-band > * { position: relative; }
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { max-width: 46ch; margin-left: auto; margin-right: auto; }
.cta-band .btn-primary { margin-top: 24px; }

/* ---------- FAQ ---------- */
.faq-item { border-top: 1px solid var(--surface-border); padding: 22px 0; }
.faq-item:last-child { border-bottom: 1px solid var(--surface-border); }
.faq-item summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-display); font-weight: 600; font-size: 1.02rem; color: var(--text); gap: 20px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { flex-shrink: 0; width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--surface-border); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); color: var(--accent-2); transition: transform .2s; }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item .faq-a { margin-top: 14px; padding-right: 40px; }

/* ---------- Persona/use-case hero variant ---------- */
.persona-strip { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.persona-chip { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted); border: 1px solid var(--surface-border); padding: 6px 12px; border-radius: 100px; }

/* ---------- Callout boxes ---------- */
.callout { border-radius: var(--radius-md); padding: 22px 24px; border: 1px solid var(--surface-border); background: var(--surface); margin: 28px 0; }
.callout.accent { border-color: rgba(124,111,232,0.35); background: var(--accent-gradient-soft); }
.callout p:last-child { margin-bottom: 0; }
.callout-label { font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent-2); display: block; margin-bottom: 8px; }

/* ---------- In-page sticky install rail (long-form pages) ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 60px; align-items: start; }
.install-rail { position: sticky; top: 92px; }
.rail-card { background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md); padding: 22px; }
.rail-card img.rail-icon { width: 44px; height: 44px; border-radius: 11px; margin-bottom: 14px; }
.rail-card h3 { font-size: 1.05rem; }
.rail-card p { font-size: 0.88rem; }
.rail-list { list-style: none; padding: 0; margin: 16px 0 20px; display: flex; flex-direction: column; gap: 9px; }
.rail-list li { font-size: 0.85rem; color: var(--text-muted); display: flex; gap: 8px; align-items: flex-start; }
.rail-list li svg { flex-shrink: 0; margin-top: 3px; color: var(--github-green); }
.rail-note { font-size: 0.78rem; color: var(--text-dim); margin-top: 14px; text-align: center; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { font-size: 0.84rem; color: var(--text-dim); margin-bottom: 20px; }
.breadcrumb a { color: var(--text-dim); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-2); }

/* ---------- Related links grid (internal linking) ---------- */
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.related-card { background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md); padding: 20px; text-decoration: none; color: inherit; transition: border-color .15s, background .15s; }
.related-card:hover { border-color: rgba(124,111,232,0.5); background: var(--surface-2); }
.related-card .kicker { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.05em; }
.related-card h4 { font-family: var(--font-display); font-size: 0.98rem; margin: 8px 0 6px; color: var(--text); }
.related-card p { font-size: 0.85rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--surface-border); padding: 60px 0 32px; margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 32px; margin-bottom: 44px; }
.footer-col h4 { font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-dim); margin-bottom: 14px; }
.footer-col a { display: block; font-size: 0.88rem; color: var(--text-muted); text-decoration: none; padding: 5px 0; }
.footer-col a:hover { color: var(--accent-2); }
.footer-brand p { font-size: 0.88rem; max-width: 34ch; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 28px; border-top: 1px solid var(--surface-border); font-size: 0.82rem; color: var(--text-dim); flex-wrap: wrap; gap: 12px; }
.footer-bottom a { color: var(--text-dim); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent-2); }

/* ---------- Utility ---------- */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.tag-list { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0; }
.tag { font-family: var(--font-mono); font-size: 0.76rem; color: var(--text-dim); border: 1px solid var(--surface-border); padding: 5px 11px; border-radius: 100px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.reverse .two-col { direction: rtl; }
.reverse .two-col > * { direction: ltr; }
.pill-list { list-style: none; padding: 0; margin: 20px 0; }
.pill-list li { display: flex; gap: 12px; padding: 10px 0; align-items: flex-start; }
.pill-list li svg { flex-shrink: 0; margin-top: 3px; color: var(--accent-2); }

/* ---------- Focus states (accessibility) ---------- */
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }

/* ---------- Fade-in on scroll ---------- */
.fade-up { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.in-view { opacity: 1; transform: translateY(0); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .install-rail { position: static; margin-bottom: 40px; order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .two-col, .reverse .two-col { grid-template-columns: 1fr; direction: ltr; }
}
@media (max-width: 720px) {
  .main-nav, .nav-cta .btn-secondary { display: none; }
  .mobile-toggle { display: flex; }
  .hero { padding: 48px 0 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  section { padding: 56px 0; }
  .cta-band { padding: 36px 22px; }
  body { font-size: 16px; }
}