/* ───────────────────────────────────────────────────────────────────────────
   Gildhause landing page.

   Deliberately hand-written CSS with no build step and no framework. The app
   (app.gildhause.com) is Vue + Tailwind; this is four static files. A marketing
   page that needs a toolchain is a marketing page that rots, and this one has to
   survive being edited in a hurry by whoever is nearest.

   Tokens are copied from frontend/src/style.css rather than imported, because
   this deploys as a separate service with no access to that build. They are
   checked against it by a test (WwwBrandTokenTests) so the copy cannot drift
   silently — the whole point of a shared design system is defeated the moment
   the two halves disagree about what brass is.
   ─────────────────────────────────────────────────────────────────────────── */

:root {
  /* Surface elevation ramp */
  --surface-base: #0E141A;
  --surface-panel: #141B22;
  --surface-card: #19212A;
  --surface-raised: #222C36;

  /* Text on dark */
  --text-primary: #E6EDF2;
  --text-body: #C7D2DA;
  --text-muted: #97A8B5;
  --text-faint: #6B8A99;

  /* Machine layer — Teal */
  --teal-400: #5FEDD8;
  --teal-500: #40E0D0;

  /* Team layer — Brass */
  --brass-300: #E8C766;
  --brass-500: #E0B24A;

  --orange-600: #FF6B35;
  --done: #2BB673;

  --font-display: 'Sora', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius-control: 9px;
  --radius-card: 14px;
  --radius-pill: 9999px;

  --border-hairline: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.12);
  --glow-teal-sm: 0 0 10px rgba(64, 224, 208, 0.4);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface-base);
  color: var(--text-body);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* A single soft light source behind the hero. One gradient, not a light show —
   the product is a ledger, and the page should feel like one. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 500px at 50% -10%, rgba(64, 224, 208, 0.10), transparent 70%),
    radial-gradient(700px 400px at 85% 5%, rgba(224, 178, 74, 0.06), transparent 70%);
  z-index: 0;
}

main, .nav, .footer { position: relative; z-index: 1; }

h1, h2, h3 { font-family: var(--font-display); color: var(--text-primary); margin: 0; }

a { color: var(--teal-400); text-decoration: none; }
a:hover { text-decoration: underline; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ─── Nav ──────────────────────────────────────────────────────────────── */

.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1080px; margin: 0 auto; padding: 22px 24px;
}

.wordmark {
  font-family: var(--font-display); font-weight: 800; font-size: 20px;
  letter-spacing: -0.02em; color: var(--text-primary); text-decoration: none;
}
.wordmark:hover { text-decoration: none; }
.wordmark.small { font-size: 16px; }

.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: var(--text-muted); font-size: 15px; }
.nav-links a:hover { color: var(--text-primary); text-decoration: none; }

.nav-cta {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  padding: 7px 16px;
  color: var(--text-primary) !important;
}
.nav-cta:hover { border-color: var(--teal-500); box-shadow: var(--glow-teal-sm); }

/* ─── Hero ─────────────────────────────────────────────────────────────── */

.hero { max-width: 820px; margin: 0 auto; padding: 84px 24px 72px; text-align: center; }

.eyebrow {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.04em;
  color: var(--brass-500); margin: 0 0 22px;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 68px); font-weight: 800;
  line-height: 1.08; letter-spacing: -0.03em; margin-bottom: 26px;
}
.accent {
  background: linear-gradient(100deg, var(--teal-400), var(--brass-300));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.lede { font-size: 19px; color: var(--text-muted); max-width: 620px; margin: 0 auto 38px; }

/* ─── Waitlist form ────────────────────────────────────────────────────── */

.waitlist {
  display: flex; gap: 10px; justify-content: center;
  max-width: 520px; margin: 0 auto 14px; flex-wrap: wrap;
}

.waitlist input {
  flex: 1 1 260px;
  background: var(--surface-card);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  color: var(--text-primary);
  font-family: var(--font-body); font-size: 16px;
  padding: 13px 16px;
}
.waitlist input::placeholder { color: var(--text-faint); }
.waitlist input:focus {
  outline: none; border-color: var(--teal-500); box-shadow: var(--glow-teal-sm);
}
.waitlist input[aria-invalid='true'] { border-color: var(--orange-600); }

.waitlist button {
  background: var(--teal-500); color: #06231F;
  border: none; border-radius: var(--radius-control);
  font-family: var(--font-body); font-weight: 600; font-size: 16px;
  padding: 13px 22px; cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.waitlist button:hover { box-shadow: var(--glow-teal-sm); transform: translateY(-1px); }
.waitlist button:disabled { opacity: 0.55; cursor: not-allowed; transform: none; box-shadow: none; }

.form-note { font-size: 14px; color: var(--text-faint); margin: 0; text-align: center; }
.form-note.ok { color: var(--done); }
.form-note.err { color: var(--orange-600); }

/* ─── Sections ─────────────────────────────────────────────────────────── */

.section { max-width: 1000px; margin: 0 auto; padding: 72px 24px; }
.section.alt {
  max-width: none;
  background: var(--surface-panel);
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
}
.section.alt > * { max-width: 1000px; margin-left: auto; margin-right: auto; }

.section h2 {
  font-size: clamp(28px, 4vw, 38px); font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 14px;
}
.section-lede { color: var(--text-muted); max-width: 640px; margin: 0 0 40px; }

.close { text-align: center; }
.close .section-lede { margin-left: auto; margin-right: auto; }

/* ─── Cards ────────────────────────────────────────────────────────────── */

.cards {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface-card);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
}
.card h3 { font-size: 17px; font-weight: 600; margin: 12px 0 8px; }
.card p { margin: 0; font-size: 15px; color: var(--text-muted); }
.card-muted { background: transparent; box-shadow: none; border-style: dashed; }

.pip { display: inline-block; width: 9px; height: 9px; border-radius: var(--radius-pill); }
.pip-live { background: var(--teal-500); box-shadow: var(--glow-teal-sm); }
.pip-soon { background: var(--text-faint); }

.footnote {
  margin: 34px 0 0; font-size: 15px; color: var(--text-faint);
  border-left: 2px solid var(--brass-700, var(--brass-500));
  padding-left: 16px; max-width: 640px;
}

/* ─── Numbered rows ────────────────────────────────────────────────────── */

.rows { display: flex; flex-direction: column; gap: 34px; }
.row { display: flex; gap: 22px; align-items: flex-start; }
.row-num {
  font-family: var(--font-mono); font-size: 14px; color: var(--brass-500);
  padding-top: 4px; min-width: 32px;
}
.row h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.row p { margin: 0; color: var(--text-muted); max-width: 720px; }

/* ─── Split list ───────────────────────────────────────────────────────── */

.split { display: grid; gap: 40px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.split h3 { font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.yes { color: var(--teal-400); }
.no { color: var(--text-muted); }

.list { margin: 0; padding-left: 20px; }
.list li { margin-bottom: 10px; color: var(--text-muted); font-size: 15px; }

/* ─── Footer ───────────────────────────────────────────────────────────── */

.footer {
  display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 20px;
  max-width: 1000px; margin: 0 auto; padding: 40px 24px 56px;
  border-top: 1px solid var(--border-hairline);
}
.footer-note { margin: 6px 0 0; font-size: 14px; color: var(--text-faint); }
.footer-links { display: flex; gap: 22px; font-size: 14px; }
.footer-links a { color: var(--text-muted); }

@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding-top: 56px; }
  .row { gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .waitlist button { transition: none; }
}

/* The scope box. Constraints read as a design stance to a technical buyer; unbounded
   capability reads as a promise they expect to be broken. */
.scope {
  border-left: 2px solid var(--teal-500);
  padding: 2px 0 2px 16px;
  margin: 0 0 32px;
  color: var(--text-body);
  max-width: 640px;
}