/* Quantum site — tokens from docs/brand.md. Not a crypto landing, not a kit. */
:root {
  --bg: #0c1014;
  --card: #141a21;
  --line: #243040;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #9956DC;
  --btn: #6E24B5;
  --fill: rgba(153, 86, 220, 0.14);
  --warn: #e6b84d;
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.5;
}

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

.wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; display: block; }
.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn {
  display: inline-block;
  border-radius: var(--radius);
  padding: 10px 16px;
  font: inherit;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-pay {
  background: var(--btn);
  color: var(--text);
}
.btn-pay:disabled,
.btn-pay.is-off {
  opacity: 0.4;
  cursor: not-allowed;
}
.btn-quiet {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

h1 {
  font-size: 2rem;
  font-weight: 650;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 48px 0 12px;
}
.lead {
  color: var(--muted);
  margin: 0 0 24px;
  font-size: 1.05rem;
}

.hero-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }

.shot {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 14px;
}

.steps { padding-left: 1.2em; margin: 0; color: var(--text); }
.steps li { margin: 8px 0; }

.widgets { list-style: none; padding: 0; margin: 0; }
.widgets li {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
.widgets strong { color: var(--text); font-weight: 600; display: block; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: var(--radius);
  padding: 8px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 72px;
}
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip--featured { border-color: var(--accent); }
.chip:has(input:checked) {
  background: var(--fill);
  border-color: var(--accent);
}
.chip .d { font-weight: 600; font-size: 15px; }
.chip .cap { font-size: 12px; color: var(--muted); }

.price-line {
  min-height: 1.5em;
  margin: 8px 0 16px;
  color: var(--muted);
}
.note {
  color: var(--muted);
  font-size: 14px;
  margin: 8px 0 16px;
}
.check {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--muted);
  margin: 12px 0 16px;
}

footer.foot {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}
.foot-links { display: flex; gap: 16px; margin-bottom: 12px; }
.legal { margin: 0; }

.codebox {
  font-family: ui-monospace, "IBM Plex Mono", monospace;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  word-break: break-all;
}

.stub {
  color: var(--muted);
}

ol.install { padding-left: 1.2em; }
ol.install li { margin: 10px 0; }

@media (max-width: 560px) {
  h1 { font-size: 1.6rem; }
  header.top { flex-direction: column; align-items: flex-start; }
}