/* Point 53 — shared style sheet */
@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500&family=Inter:wght@300;400;500;600;700&family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500;1,600&display=swap');

:root {
  --bg: #0a0a0a;
  --bg-1: #111111;
  --bg-2: #161616;
  --line: #252525;
  --line-2: #1a1a1a;
  --fg: #ededed;
  --fg-dim: #9a9a9a;
  --fg-faint: #5a5a5a;

  /* warm pastel emphasis — light Bitcoin */
  --emph: oklch(0.82 0.11 60);
  --emph-2: oklch(0.86 0.07 60);

  /* per-product hues */
  --collector: oklch(0.82 0.13 85);   /* amber/yellow */
  --courier-l: oklch(0.78 0.16 350);  /* magenta */
  --courier-r: oklch(0.82 0.16 155);  /* green */
  --intercept: oklch(0.85 0.04 220);  /* cool light */
  --nightdesk: oklch(0.78 0.13 295);  /* violet */
  --handler:   oklch(0.78 0.05 60);   /* neutral warm */

  --mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --serif: 'Lora', 'Iowan Old Style', Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  min-height: 100vh;
}

a {
  color: var(--fg);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 120ms ease, color 120ms ease;
}
a:hover { border-bottom-color: var(--emph); color: var(--emph); }

/* type */
h1, h2, h3, h4 { font-weight: 500; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: clamp(40px, 6vw, 76px); line-height: 1.02; letter-spacing: -0.025em; }
h2 { font-size: clamp(24px, 2.4vw, 32px); line-height: 1.15; letter-spacing: -0.015em; }
h3 { font-size: 18px; line-height: 1.25; }

.emph {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  color: var(--emph);
  letter-spacing: -0.005em;
  font-size: 1.06em;
}
.mono { font-family: var(--mono); font-size: 13.5px; letter-spacing: 0.02em; }
.kicker {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-faint);
}
.dim { color: var(--fg-dim); }
.faint { color: var(--fg-faint); }

/* layout shell */
.shell {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}

/* top nav */
.topbar {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  position: sticky;
  top: 0;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(8px);
  z-index: 50;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  border: none;
  color: var(--fg);
}
.brand:hover { color: var(--fg); border: none; }
.brand-mark { width: 28px; height: 28px; }
.topbar .dotmark { transform: translateY(0); }
.brand-word {
  font-family: var(--mono);
  font-size: 20px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--fg);
}
.brand-word .em { color: var(--emph); }
nav.primary {
  display: flex;
  gap: 24px;
  font-family: var(--mono);
  font-size: 20px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
nav.primary a {
  border: none;
  color: var(--fg-dim);
  padding: 4px 0;
}
nav.primary a:hover { color: var(--emph); }
nav.primary a.active { color: var(--fg); }

/* footer */
.foot {
  margin-top: 96px;
  border-top: 1px solid var(--line);
  padding: 36px 0 56px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--fg-faint);
}
.foot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
}
.foot h4 {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
  font-weight: 500;
  margin-bottom: 12px;
}
.foot ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.foot a { border: none; color: var(--fg-faint); }
.foot a:hover { color: var(--emph); }
.foot-base {
  display: flex;
  justify-content: space-between;
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid var(--line-2);
  color: var(--fg-faint);
}

/* utility blocks */
.rule { height: 1px; background: var(--line); width: 100%; }
.row { display: flex; align-items: center; gap: 12px; }
.col { display: flex; flex-direction: column; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; }
.gap-16 { gap: 16px; } .gap-24 { gap: 24px; } .gap-32 { gap: 32px; }
.section { padding: 80px 0; border-top: 1px solid var(--line); }
.section.first { border-top: none; padding-top: 56px; }

/* ASCII banner — section header style from references */
.banner {
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--fg-dim);
  white-space: pre;
  overflow-x: auto;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: center;
  gap: 24px;
}
.banner .glyphs { color: inherit; white-space: pre; font-size: 14.5px; line-height: 1.4; }
.banner .meta { display: flex; flex-direction: column; gap: 4px; }
.banner .title {
  font-family: var(--mono);
  letter-spacing: 0.32em;
  font-size: 14.5px;
  color: var(--fg);
  text-transform: uppercase;
}
.banner .title .accent { font-weight: 500; }
.banner .verbs { color: var(--fg-dim); font-size: 13.5px; letter-spacing: 0.04em; }
.banner .stamp { color: var(--fg-faint); font-size: 12.5px; letter-spacing: 0.06em; }

/* button-like links — old-school underline & bracket */
.btn {
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg);
  border: 1px solid var(--line);
  padding: 12px 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: border-color 120ms, color 120ms, background 120ms;
}
.btn:hover { border-color: var(--emph); color: var(--emph); background: rgba(255,255,255,0.02); }
.btn.primary { border-color: var(--emph); color: var(--emph); }
.btn.primary:hover { background: color-mix(in oklab, var(--emph) 8%, transparent); }
.btn .arrow { font-family: var(--mono); }

/* hero dot grid logo (large) */
.dotmark {
  display: inline-grid;
  grid-template-columns: repeat(4, var(--ds, 22px));
  grid-auto-rows: var(--ds, 22px);
  gap: var(--dg, 10px);
}
.dotmark span {
  width: var(--dd, 16px); height: var(--dd, 16px);
  border-radius: 999px;
  display: block;
  justify-self: center; align-self: center;
}
.dotmark span.fill { background: var(--fg); }
.dotmark span.ring { border: var(--bw, 2px) solid var(--fg); background: transparent; box-sizing: border-box; }
.dotmark span.empty { visibility: hidden; }

/* product card row */
.products {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}
.product-row {
  display: grid;
  grid-template-columns: 80px 1.4fr 2fr 160px;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
  transition: background 120ms ease;
}
.product-row:hover { background: rgba(255,255,255,0.015); }
.product-row .num {
  font-family: var(--mono);
  color: var(--fg-faint);
  font-size: 13.5px;
  letter-spacing: 0.12em;
}
.product-row .name {
  font-family: var(--mono);
  font-size: 15.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}
.product-row .name b { font-weight: 500; }
.product-row .name .house { color: var(--fg-faint); font-weight: 400; }
.product-row .verbs {
  color: var(--fg-dim);
  font-size: 14.5px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}
.product-row .blurb { color: var(--fg-dim); font-size: 15.5px; line-height: 1.5; }
.product-row .accent-amber b { color: var(--collector); }
.product-row .accent-courier b { color: var(--courier-r); }
.product-row .accent-intercept b { color: var(--intercept); }
.product-row .accent-night b { color: var(--nightdesk); }
.product-row .accent-handler b { color: var(--handler); }
.product-row a.go {
  border: none;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-faint);
  justify-self: end;
}
.product-row:hover a.go { color: var(--emph); }

/* mini glyph cluster used on banner left side */
.glyph-cluster {
  font-family: var(--mono);
  white-space: pre;
  line-height: 1.05;
  font-size: 13px;
}

/* form */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
}
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.field input, .field select, .field textarea {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
  border-radius: 0;
  transition: border-color 120ms;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--emph);
}
.field textarea { min-height: 140px; resize: vertical; }
.radio-row, .check-row {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 13.5px;
  letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 8px 12px;
  cursor: pointer;
  user-select: none;
  color: var(--fg-dim);
  transition: border-color 120ms, color 120ms, background 120ms;
}
.chip:hover { color: var(--fg); }
.chip input { display: none; }
.chip.on { border-color: var(--emph); color: var(--emph); background: color-mix(in oklab, var(--emph) 6%, transparent); }

/* table-style spec list */
dl.specs {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}
dl.specs dt, dl.specs dd {
  padding: 14px 0;
  border-bottom: 1px solid var(--line-2);
  margin: 0;
}
dl.specs dt {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-faint);
  align-self: center;
}
dl.specs dd { color: var(--fg); }

/* hero */
.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  padding: 80px 0 64px;
  align-items: end;
}
.hero h1 .stack { display: block; }
.hero .lede { color: var(--fg-dim); font-size: 17px; line-height: 1.55; max-width: 44ch; margin-top: 24px; }
.hero .right {
  border-left: 1px solid var(--line);
  padding-left: 32px;
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--fg-dim);
  display: flex; flex-direction: column; gap: 14px;
  align-self: stretch;
  justify-content: flex-end;
}
.hero .right .label {
  color: var(--fg-faint);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 11.5px;
}

/* tabbed area (tool pages) */
.tabs { --tab-accent: var(--emph); margin-top: 18px; }
.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line);
}
.tab-btn {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 12px 20px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-faint);
  cursor: pointer;
  transition: color 120ms, border-color 120ms;
}
.tab-btn:hover { color: var(--fg-dim); }
.tab-btn.active {
  color: var(--fg);
  border-bottom-color: var(--tab-accent);
}
.tab-panel { display: none; padding-top: 32px; }
.tab-panel.active { display: block; }

/* command / code block */
pre.cmd {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-left: 2px solid var(--tab-accent, var(--emph));
  padding: 18px 18px;
  line-height: 1.7;
  color: var(--fg);
  font-family: var(--mono);
  font-size: 13px;
  white-space: pre-wrap;
  word-break: normal;
  overflow-wrap: normal;
  overflow-x: auto;
}
pre.cmd .prompt { color: var(--fg-faint); user-select: none; }
pre.cmd .flag { color: var(--emph); white-space: nowrap; }
pre.cmd .pkg { color: var(--tab-accent, var(--emph)); white-space: nowrap; }

/* notices section (linkable, per tool) */
.notices { scroll-margin-top: 96px; }
.notice-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
}
.notice-list li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-2);
  align-items: baseline;
}
.notice-list .tag {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--tab-accent, var(--emph));
}
.notice-list .body { color: var(--fg-dim); font-size: 15px; line-height: 1.55; }
.notice-list .body b { color: var(--fg); font-weight: 500; }

/* responsive */
@media (max-width: 880px) {
  .notice-list li { grid-template-columns: 1fr; gap: 6px; }
  .hero, .product-row { grid-template-columns: 1fr; }
  .product-row { gap: 8px; padding: 20px 0; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .banner { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  nav.primary { display: none; }
}