/* migration-machine site - terminal/dark theme */

:root {
  --bg: #0a0d12;
  --bg-grid: rgba(255, 255, 255, 0.018);
  --surface: #11161f;
  --surface-2: #0c1118;
  --border: #1e2733;
  --border-soft: #18202b;
  --text: #d7dee8;
  --muted: #8a97a6;
  --faint: #5d6a78;
  --accent: #3fd17c;
  --accent-2: #56d6e0;
  --accent-dim: rgba(63, 209, 124, 0.12);
  --warn: #e3b341;
  --radius: 12px;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px),
    radial-gradient(900px 500px at 50% -10%, rgba(63, 209, 124, 0.08), transparent 70%);
  background-size: 44px 44px, 44px 44px, 100% 100%;
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

code, kbd, pre { font-family: var(--mono); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10, 13, 18, 0.72);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 22px;
  display: flex; align-items: center; gap: 18px;
}
.brand {
  font-family: var(--mono); font-weight: 600; font-size: 15px;
  color: var(--text); white-space: nowrap;
}
.brand .caret { color: var(--accent); }
.brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 6px; margin-left: auto; align-items: center; }
.nav-links a {
  color: var(--muted); font-size: 14px; padding: 7px 12px; border-radius: 8px;
}
.nav-links a:hover { color: var(--text); background: var(--surface); text-decoration: none; }
.nav-links a.active { color: var(--accent); }
.nav-gh {
  border: 1px solid var(--border); color: var(--text) !important;
  display: inline-flex; align-items: center; gap: 7px;
}
.nav-gh:hover { border-color: var(--accent); background: var(--accent-dim) !important; }
.nav-toggle {
  display: none; margin-left: auto; background: none; border: 1px solid var(--border);
  color: var(--text); width: 38px; height: 34px; border-radius: 8px; font-size: 16px; cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-weight: 600; font-size: 14px;
  border: 1px solid var(--border); color: var(--text); cursor: pointer;
  font-family: var(--sans);
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #06140c; border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.07); }
.btn-ghost:hover { border-color: var(--accent); background: var(--accent-dim); }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 28px; }
.eyebrow {
  font-family: var(--mono); font-size: 13px; color: var(--accent);
  letter-spacing: 0.04em; margin-bottom: 14px;
}
.hero h1 {
  font-family: var(--mono); font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.08; margin: 0 0 16px; letter-spacing: -0.01em;
}
.hero h1 .grad {
  background: linear-gradient(92deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-size: clamp(16px, 2.2vw, 19px); color: var(--muted); max-width: 660px; margin: 0 0 26px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 18px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.badge {
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 4px 11px;
}
.badge b { color: var(--accent); font-weight: 600; }

/* ---------- Terminal window ---------- */
.term {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; margin: 26px 0;
  box-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.8);
}
.term-bar {
  display: flex; align-items: center; gap: 7px; padding: 11px 14px;
  border-bottom: 1px solid var(--border-soft); background: rgba(255,255,255,0.02);
}
.term-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
.dot.r { background: #ff5f56; } .dot.y { background: #ffbd2e; } .dot.g { background: #27c93f; }
.term-bar .title { margin-left: 8px; font-family: var(--mono); font-size: 12px; color: var(--faint); }
.term-bar .copy { margin-left: auto; }
.term-body { padding: 16px 18px; font-family: var(--mono); font-size: 13.5px; line-height: 1.9; overflow-x: auto; }
.term-body .line { white-space: pre; }
.term-body .p { color: var(--accent); user-select: none; }
.term-body .cmd { color: var(--text); }
.term-body .c { color: var(--faint); }
.term-body .out { color: var(--muted); }
.cursor { display: inline-block; width: 8px; height: 16px; background: var(--accent); vertical-align: -3px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.copy {
  font-family: var(--mono); font-size: 11.5px; color: var(--muted);
  background: none; border: 1px solid var(--border); border-radius: 7px;
  padding: 4px 9px; cursor: pointer;
}
.copy:hover { color: var(--text); border-color: var(--accent); }
.copy.done { color: var(--accent); border-color: var(--accent); }

/* ---------- Sections ---------- */
section { padding: 46px 0; border-top: 1px solid var(--border-soft); }
section.flush { border-top: none; }
.section-h { font-family: var(--mono); font-size: 13px; color: var(--accent); margin: 0 0 6px; letter-spacing: 0.04em; }
h2 { font-size: clamp(22px, 3.4vw, 30px); margin: 0 0 10px; letter-spacing: -0.01em; }
.section-sub { color: var(--muted); max-width: 640px; margin: 0 0 26px; }

/* ---------- Feature grid ---------- */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; transition: border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: #2b3a4a; transform: translateY(-2px); }
.card .ic {
  width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center;
  background: var(--accent-dim); color: var(--accent); margin-bottom: 13px;
}
.card h3 { font-family: var(--mono); font-size: 15px; margin: 0 0 7px; }
.card p { color: var(--muted); font-size: 14px; margin: 0; }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; position: relative; }
.step .num { font-family: var(--mono); font-size: 12px; color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; width: 26px; height: 26px; display: grid; place-items: center; margin-bottom: 13px; }
.step h3 { font-family: var(--mono); font-size: 15px; margin: 0 0 6px; }
.step p { color: var(--muted); font-size: 14px; margin: 0; }

/* ---------- Docs / prose ---------- */
.doc { display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: start; }
.toc { position: sticky; top: 78px; font-size: 14px; }
.toc a { display: block; color: var(--muted); padding: 5px 0; }
.toc a:hover { color: var(--text); text-decoration: none; }
.prose h2 { margin-top: 8px; scroll-margin-top: 78px; }
.prose h3 { font-family: var(--mono); font-size: 16px; margin: 30px 0 8px; scroll-margin-top: 78px; }
.prose p, .prose li { color: var(--text); }
.prose li { margin: 4px 0; }
.prose .muted { color: var(--muted); }

pre.block {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 15px 16px; overflow-x: auto; font-size: 13px; line-height: 1.7; position: relative;
}
pre.block code { color: var(--text); }
.codewrap { position: relative; }
.codewrap .copy { position: absolute; top: 9px; right: 9px; }
p code, li code, td code { background: var(--surface); border: 1px solid var(--border-soft); border-radius: 5px; padding: 1px 6px; font-size: 12.5px; color: var(--accent-2); }

.callout { border-left: 3px solid var(--warn); background: rgba(227,179,65,0.07); border-radius: 0 8px 8px 0; padding: 12px 16px; margin: 18px 0; color: var(--muted); }
.callout b { color: var(--text); }

table.ref { width: 100%; border-collapse: collapse; font-size: 14px; margin: 14px 0; }
table.ref th, table.ref td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border-soft); vertical-align: top; }
table.ref th { color: var(--muted); font-weight: 600; font-size: 13px; }
table.ref td:first-child code { white-space: nowrap; }

ul.check { list-style: none; padding: 0; }
ul.check li { padding-left: 26px; position: relative; }
ul.check li::before { content: "▢"; position: absolute; left: 0; color: var(--accent); }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--border-soft); padding: 34px 0; color: var(--muted); font-size: 14px; }
.foot-inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); }
.foot-brand { font-family: var(--mono); color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .grid, .steps { grid-template-columns: 1fr 1fr; }
  .doc { grid-template-columns: 1fr; }
  .toc { position: static; display: none; }
}
@media (max-width: 620px) {
  .grid, .steps { grid-template-columns: 1fr; }
  .nav-links {
    display: none; position: absolute; top: 58px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 8px 14px 14px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px 8px; border-radius: 8px; }
  .nav-toggle { display: block; }
  .hero { padding: 48px 0 18px; }
}