:root {
  --bg: #0b0d12;
  --bg-elev: #12151d;
  --bg-card: #161a24;
  --border: #252a38;
  --text: #e8ecf4;
  --muted: #9aa3b5;
  --faint: #6b7385;
  --accent: #7c9cff;
  --accent-2: #5eead4;
  --ok: #34d399;
  --fail: #f87171;
  --warn: #fbbf24;
  --http: #7c9cff;
  --assert: #c4b5fd;
  --browser: #5eead4;
  --radius: 14px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "SF Mono", "Fira Code", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(124,156,255,.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(94,234,212,.12), transparent 50%),
    radial-gradient(700px 400px at 50% 100%, rgba(196,181,253,.08), transparent 45%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: min(1080px, calc(100% - 2.5rem));
  margin: 0 auto;
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: .7rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -.02em;
}
.brand:hover { text-decoration: none; }
.logo {
  width: 32px; height: 32px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center;
  font-size: .85rem; font-weight: 800; color: #0b0d12;
  box-shadow: 0 0 24px rgba(124,156,255,.35);
}
.nav-links {
  display: flex; gap: 1.1rem; align-items: center; flex-wrap: wrap;
}
.nav-links a { color: var(--muted); font-size: .92rem; }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* Hero */
.hero {
  padding: 2.5rem 0 3rem;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 2.5rem;
  align-items: center;
}
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 2rem; }
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(94,234,212,.08);
  border: 1px solid rgba(94,234,212,.2);
  padding: .35rem .7rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 8px var(--accent-2);
}

h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.15rem);
  line-height: 1.12;
  letter-spacing: -.035em;
  margin: 0 0 1rem;
  font-weight: 750;
}
h1 em {
  font-style: normal;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pitch {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 .85rem;
  max-width: 38rem;
}
.pitch strong { color: var(--text); font-weight: 600; }
.lang-tag {
  display: inline-block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--faint);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .1rem .35rem;
  margin-right: .4rem;
  vertical-align: middle;
}

.cta-row {
  display: flex; flex-wrap: wrap; gap: .75rem;
  margin: 1.6rem 0 1.2rem;
}
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .7rem 1.15rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s, background .15s, border-color .15s;
  text-decoration: none;
  color: var(--text);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, #6b8cff, #5eead4);
  color: #0b0d12;
  box-shadow: 0 8px 28px rgba(124,156,255,.28);
}
.btn-ghost {
  background: var(--bg-elev);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: #3a4155; }

.install-box {
  display: flex; align-items: center; gap: .75rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .85rem 1rem;
  font-family: var(--mono);
  font-size: .92rem;
  max-width: 28rem;
}
.install-box code { flex: 1; color: var(--accent-2); }
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: .35rem .65rem;
  font-size: .75rem;
  font-family: var(--font);
  cursor: pointer;
}
.copy-btn:hover { color: var(--text); border-color: #3a4155; }
.copy-btn.copied { color: var(--ok); border-color: rgba(52,211,153,.4); }

/* Hero card / terminal preview */
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
}
.term-bar {
  display: flex; align-items: center; gap: .4rem;
  padding: .7rem 1rem;
  background: #0e1118;
  border-bottom: 1px solid var(--border);
}
.term-dot { width: 10px; height: 10px; border-radius: 50%; }
.term-dot.r { background: #ff5f57; }
.term-dot.y { background: #febc2e; }
.term-dot.g { background: #28c840; }
.term-title {
  margin-left: .6rem;
  font-size: .75rem;
  color: var(--faint);
  font-family: var(--mono);
}
.term-body {
  padding: 1.1rem 1.15rem 1.25rem;
  font-family: var(--mono);
  font-size: .78rem;
  line-height: 1.65;
  color: var(--muted);
}
.term-body .ok { color: var(--ok); }
.term-body .dim { color: var(--faint); }
.term-body .hi { color: var(--text); }
.term-body .pass { color: var(--accent-2); font-weight: 600; }

/* Sections */
section { padding: 2.75rem 0; }
.section-title {
  font-size: 1.45rem;
  letter-spacing: -.02em;
  margin: 0 0 .4rem;
  font-weight: 700;
}
.section-sub {
  color: var(--muted);
  margin: 0 0 1.6rem;
  max-width: 40rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
@media (max-width: 760px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem;
}
.card h3 {
  margin: 0 0 .5rem;
  font-size: 1.02rem;
  letter-spacing: -.01em;
}
.card p { margin: 0; color: var(--muted); font-size: .92rem; }
.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 600;
  padding: .2rem .45rem;
  border-radius: 6px;
  margin-bottom: .7rem;
}
.badge.http { background: rgba(124,156,255,.15); color: var(--http); }
.badge.assert { background: rgba(196,181,253,.15); color: var(--assert); }
.badge.browser { background: rgba(94,234,212,.12); color: var(--browser); }

/* Demo panel */
.demo-shell {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 420px;
}
@media (max-width: 860px) {
  .demo-shell { grid-template-columns: 1fr; }
}
.demo-pane {
  display: flex; flex-direction: column;
  min-height: 0;
}
.demo-pane + .demo-pane { border-left: 1px solid var(--border); }
@media (max-width: 860px) {
  .demo-pane + .demo-pane { border-left: none; border-top: 1px solid var(--border); }
}
.pane-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: .75rem 1rem;
  background: #0e1118;
  border-bottom: 1px solid var(--border);
  font-size: .8rem;
  color: var(--muted);
  font-weight: 600;
}
.pane-body {
  flex: 1;
  padding: 1rem;
  overflow: auto;
  font-family: var(--mono);
  font-size: .75rem;
  line-height: 1.6;
}
.yaml-view {
  margin: 0;
  white-space: pre-wrap;
  color: var(--muted);
}
.yaml-view .k { color: var(--accent); }
.yaml-view .s { color: var(--accent-2); }
.yaml-view .c { color: var(--faint); }
.yaml-view .n { color: var(--warn); }

.report { display: flex; flex-direction: column; gap: .55rem; }
.step {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .65rem;
  align-items: start;
  padding: .65rem .75rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  opacity: .35;
  transform: translateY(4px);
  transition: opacity .35s, transform .35s, border-color .35s;
}
.step.active, .step.done {
  opacity: 1;
  transform: none;
}
.step.done { border-color: rgba(52,211,153,.25); }
.step.fail { border-color: rgba(248,113,113,.35); opacity: 1; }
.step-icon {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: .7rem;
  font-weight: 700;
  background: #1a1f2c;
  color: var(--faint);
  margin-top: 1px;
}
.step.done .step-icon { background: rgba(52,211,153,.15); color: var(--ok); }
.step.fail .step-icon { background: rgba(248,113,153,.15); color: var(--fail); }
.step.running .step-icon {
  background: rgba(124,156,255,.15);
  color: var(--accent);
  animation: pulse 1s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .45; }
}
.step-meta { min-width: 0; }
.step-id { color: var(--text); font-weight: 600; font-size: .8rem; }
.step-type {
  display: inline-block;
  margin-left: .35rem;
  font-size: .65rem;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.step-detail { color: var(--muted); font-size: .72rem; margin-top: .15rem; }
.step-dur { color: var(--faint); font-size: .7rem; white-space: nowrap; }

.report-footer {
  margin-top: .5rem;
  padding: .75rem .85rem;
  border-radius: 10px;
  background: rgba(52,211,153,.08);
  border: 1px solid rgba(52,211,153,.25);
  color: var(--ok);
  font-weight: 600;
  font-size: .85rem;
  opacity: 0;
  transition: opacity .4s;
}
.report-footer.show { opacity: 1; }

.demo-actions {
  display: flex; gap: .6rem; align-items: center;
}
.demo-actions .btn { padding: .4rem .85rem; font-size: .8rem; }

/* Install section */
.cmd-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
}
.cmd-block pre {
  margin: 0;
  font-family: var(--mono);
  font-size: .85rem;
  color: var(--accent-2);
  overflow-x: auto;
}
.cmd-block .comment { color: var(--faint); }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0 2.5rem;
  color: var(--faint);
  font-size: .85rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer a { color: var(--muted); }
.footer a:hover { color: var(--text); }

.links-row {
  display: flex; flex-wrap: wrap; gap: .75rem 1.25rem;
  margin-top: 1.25rem;
  font-size: .92rem;
}