:root {
  --bg: #ffffff;
  --text: #0a0a0a;
  --muted: #6b6b6b;
  --line: #e5e5e5;
  --accent: #0a0a0a;
  --term-bg: #0a0a0a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.brand {
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}
.links { display: flex; gap: 32px; }
.links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.links a:hover { color: var(--text); }

/* ---- Hero ---- */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 48px 120px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-copy { animation: rise 0.8s ease both; }
.hero h1 {
  font-size: 58px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0 0 28px;
}
.sub {
  font-size: 19px;
  color: var(--muted);
  max-width: 480px;
  margin: 0 0 40px;
  line-height: 1.5;
}
.cta { display: flex; gap: 16px; }

.btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.15s;
}
.btn.solid { background: var(--accent); color: #fff; }
.btn.solid:hover { opacity: 0.85; }
.btn.ghost { color: var(--text); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--text); }

/* ---- Terminal visual ---- */
.hero-visual { animation: rise 0.8s ease 0.15s both; }
.terminal {
  border-radius: 10px;
  overflow: hidden;
  background: var(--term-bg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.14);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: #161616;
  border-bottom: 1px solid #2a2a2a;
}
.term-bar .dot { width: 11px; height: 11px; border-radius: 50%; background: #3a3a3a; }
.term-bar .dot:first-child { background: #ff5f57; }
.term-bar .dot:nth-child(2) { background: #febc2e; }
.term-bar .dot:nth-child(3) { background: #28c840; }
.term-title {
  margin-left: 10px;
  color: #8b8b8b;
  font-size: 12px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}
.term-body { padding: 20px 22px; }
.term-lines {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.75;
  color: #d4d4d4;
}
.tline { white-space: pre; min-height: 1.75em; opacity: 0; transform: translateY(3px); }
.tline.visible { opacity: 1; transform: translateY(0); transition: opacity 0.3s ease, transform 0.3s ease; }
.tline.blank { opacity: 0; }

/* syntax highlighting tokens */
.cmd { color: #6b6b6b; }
.arg { color: #e6e6e6; font-weight: 500; }
.flag { color: #9ecbff; }
.str { color: #a5d6a7; }
.num { color: #ffd580; }
.ok { color: #7ee787; }
.muted { color: #6b6b6b; }

/* ---- Sections ---- */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 48px;
  border-top: 1px solid var(--line);
}
.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 48px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 64px 48px;
}
.feature h3 { font-size: 16px; font-weight: 600; margin: 0 0 12px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.feature {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.feature.visible { opacity: 1; transform: translateY(0); }
.feature code {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 13px;
  background: #f5f5f5;
  padding: 1px 5px;
  border-radius: 4px;
}

.steps { display: flex; flex-direction: column; }
.step {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.step span {
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  min-width: 24px;
}
.step .dim { color: var(--muted); }
code.sh {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  background: #f5f5f5;
  padding: 3px 8px;
  border-radius: 5px;
}
code.sh .cmd { color: #8b8b8b; }
code.sh .arg { color: #0a0a0a; font-weight: 500; }
code.sh .str { color: #0a7a3d; }

.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 48px 64px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

/* ---- Animations ---- */
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 900px) {
  .nav { padding: 20px 24px; }
  .links { gap: 20px; }
  .hero {
    grid-template-columns: 1fr;
    padding: 80px 24px 64px;
    gap: 48px;
  }
  .hero h1 { font-size: 40px; }
  .sub { font-size: 17px; }
  .section { padding: 56px 24px; }
  .grid { grid-template-columns: 1fr; gap: 40px; }
}