:root {
  --paper: #efeae1;
  --paper-2: #f7f4ee;
  --ink: #17171b;
  --ink-2: #4a4740;
  --line: rgba(23, 23, 27, 0.14);
  --copper: #a85b2b;
  --copper-deep: #8c3a10;
  --copper-soft: #e0b48c;
  --dot: rgba(23, 23, 27, 0.13);
  --radius: 14px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: "Inter", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.dots {
  background-image: radial-gradient(circle, var(--dot) 1px, transparent 1.3px);
  background-size: 14px 14px;
  background-position: -3px -3px;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- nav ---------- */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 0; border-bottom: 1px solid var(--line);
}
.nav__brand {
  font-family: var(--mono); font-weight: 700; letter-spacing: 0.18em;
  font-size: 13px; display: flex; align-items: center; gap: 10px;
}
.nav__brand i {
  width: 9px; height: 9px; border-radius: 50%; background: var(--copper);
  box-shadow: 0 0 0 4px rgba(168, 91, 43, 0.15);
}
.nav__links { display: flex; gap: 22px; align-items: center; font-size: 13px; }
.nav__links a {
  color: var(--ink-2); text-decoration: none; font-family: var(--mono);
  letter-spacing: 0.06em; font-size: 12px; text-transform: uppercase;
}
.nav__links a:hover { color: var(--copper-deep); }

/* ---------- hero ---------- */
.hero { padding: 64px 0 40px; }
.eyebrow {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--copper-deep); margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--copper); }
h1 {
  font-size: clamp(44px, 8vw, 92px); line-height: 0.92; margin: 0 0 20px;
  font-weight: 800; letter-spacing: -0.035em;
}
h1 em { font-style: normal; color: var(--copper); }
.pitch {
  max-width: 620px; font-size: 17px; line-height: 1.6; color: var(--ink-2); margin: 0 0 28px;
}
.pitch code {
  font-family: var(--mono); font-size: 0.88em; background: rgba(168, 91, 43, 0.1);
  padding: 1px 5px; border-radius: 4px; color: var(--copper-deep);
}

.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.06em;
  text-transform: uppercase; text-decoration: none;
  padding: 13px 22px; border-radius: 10px; border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper-2); transition: transform 0.12s, background 0.12s;
}
.btn:hover { transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: rgba(23, 23, 27, 0.05); }
.btn--sm { padding: 9px 15px; font-size: 11px; }

/* ---------- live strip ---------- */
.strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; margin: 8px 0 56px;
}
.stat { background: var(--paper-2); padding: 20px 20px 18px; }
.stat__k {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-2); margin-bottom: 10px;
}
.stat__v {
  font-family: var(--mono); font-size: 26px; font-weight: 700;
  letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.stat__v small { font-size: 12px; font-weight: 500; color: var(--ink-2); margin-left: 4px; }
.stat__s { font-size: 11px; color: var(--ink-2); margin-top: 6px; font-family: var(--mono); }

.pill {
  display: inline-flex; align-items: center; gap: 7px; font-family: var(--mono);
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--paper-2);
}
.pill i { width: 7px; height: 7px; border-radius: 50%; background: #9a9a9a; }
.pill[data-state="live"] i { background: #2e9e5b; box-shadow: 0 0 0 3px rgba(46, 158, 91, 0.18); }
.pill[data-state="idle"] i { background: #b98a2c; }
.pill[data-state="stale"] i { background: #c0392b; }

/* ---------- section ---------- */
.section { padding: 8px 0 56px; }
.section__head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 6px; }
.section__num {
  font-family: var(--mono); font-size: 11px; color: var(--copper);
  letter-spacing: 0.1em;
}
h2 { font-size: 26px; margin: 0 0 8px; letter-spacing: -0.02em; }
.section__lede { color: var(--ink-2); font-size: 14.5px; margin: 0 0 22px; max-width: 640px; }

/* ---------- builder ---------- */
.builder {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 22px; align-items: start;
}
.card {
  background: var(--paper-2); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.field { margin-bottom: 18px; }
.field__label {
  display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--ink-2); margin-bottom: 9px;
}
.seg { display: flex; gap: 6px; flex-wrap: wrap; }
.seg button {
  flex: 1 1 auto; cursor: pointer; font-family: var(--mono); font-size: 12px;
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--line);
  background: transparent; color: var(--ink-2); transition: all 0.12s;
}
.seg button:hover { border-color: var(--copper-soft); color: var(--ink); }
.seg button[aria-pressed="true"] {
  background: var(--ink); border-color: var(--ink); color: var(--paper-2);
}
.toggle { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--ink-2); }
.toggle input { accent-color: var(--copper); width: 15px; height: 15px; }

.urlbox {
  display: flex; gap: 8px; align-items: stretch; margin-top: 4px;
}
.urlbox input {
  flex: 1; font-family: var(--mono); font-size: 12px; padding: 11px 12px;
  border-radius: 8px; border: 1px solid var(--line); background: var(--paper);
  color: var(--ink-2); min-width: 0;
}
.copy {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase; padding: 0 16px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--ink); background: var(--ink); color: var(--paper-2);
}
.copy:hover { background: var(--copper-deep); border-color: var(--copper-deep); }
.copy[data-done="1"] { background: #2e9e5b; border-color: #2e9e5b; }

.preview {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: #121214; position: relative; min-height: 320px;
}
.preview iframe { width: 100%; height: 320px; border: 0; display: block; }
.preview__tag {
  position: absolute; top: 10px; left: 10px; font-family: var(--mono);
  font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5); pointer-events: none;
}

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { border-top: 2px solid var(--ink); padding-top: 16px; }
.step__n { font-family: var(--mono); font-size: 11px; color: var(--copper); letter-spacing: 0.1em; }
.step h3 { font-size: 15px; margin: 8px 0 8px; }
.step p { font-size: 13px; line-height: 1.6; color: var(--ink-2); margin: 0; }
.step code {
  font-family: var(--mono); font-size: 11.5px; background: rgba(23, 23, 27, 0.06);
  padding: 2px 5px; border-radius: 4px; word-break: break-all;
}

/* ---------- footer ---------- */
.foot {
  border-top: 1px solid var(--line); padding: 26px 0 44px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 11px; color: var(--ink-2); letter-spacing: 0.04em;
}
.foot a { color: var(--copper-deep); text-decoration: none; }

@media (max-width: 880px) {
  .builder, .steps { grid-template-columns: 1fr; }
  .strip { grid-template-columns: repeat(2, 1fr); }
}