/* =============================================================
 * praxisengine.io — V1 page styles
 * Tokens come from praxis-tokens.css. This file is page-specific.
 * Voice: engineer-to-engineer. Sentence case. Mono for metadata.
 * ============================================================= */

* { box-sizing: border-box; }

body {
  background:
    radial-gradient(circle at 18% -8%,  rgba(243,238,228,0.055), transparent 38%),
    radial-gradient(circle at 88% 12%,  rgba(232,184,64,0.07),  transparent 30%),
    radial-gradient(circle at 50% 102%, rgba(103,130,68,0.09),  transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-edge) 100%);
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--fs-lg);
  overflow-x: hidden;
}

/* ── shared shell ─────────────────────────────────────────── */
.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}
.shell-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 32px;
}

@media (max-width: 640px) {
  .shell, .shell-narrow { padding: 0 20px; }
}

/* ── top chrome ───────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(8,13,9,0.78);
  border-bottom: 1px solid var(--border-faint);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--fg1);
  border: none;
}
.topbar .brand:hover { border: none; }
.topbar .brand svg { width: 96px; height: auto; display: block; }

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--fg2);
  border: none;
}
.nav a:hover { color: var(--fg1); border: none; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border-faint);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  letter-spacing: var(--tracking-xwide);
  text-transform: uppercase;
  color: var(--fg2);
  background: var(--surface-muted);
}
.status-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--warning);
  box-shadow: 0 0 10px rgba(232,184,64,0.62);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.45; }
}

@media (max-width: 720px) {
  .nav { display: none; }
}

/* ── eyebrow rule (used above section labels) ──────────────── */
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  letter-spacing: var(--tracking-xwide);
  text-transform: uppercase;
  color: var(--fg2);
  margin-bottom: 24px;
}
.section-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--border-soft);
}

/* ── hero ─────────────────────────────────────────────────── */
.hero {
  padding: 96px 0 96px;
}
.hero h1 {
  font-size: 64px;
  line-height: 1.04;
  letter-spacing: 0;
  font-weight: 600;
  margin: 18px 0 28px;
  max-width: 16ch;
  text-wrap: balance;
}
.hero h1 em {
  font-style: normal;
  color: var(--accent);
}
.hero .lede {
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg2);
  max-width: 56ch;
  margin: 0 0 40px;
}
.hero .lede strong {
  color: var(--fg1);
  font-weight: 500;
}

.hero-proof-grid,
.authority-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: 760px;
  margin: 0 0 34px;
  border: 1px solid var(--border-faint);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--border-faint);
  box-shadow: 0 16px 36px rgba(0,0,0,0.20), inset 0 1px 0 rgba(243,238,228,0.035);
}
.proof-item,
.authority-item {
  min-width: 0;
  padding: 18px 20px;
  background:
    linear-gradient(180deg, rgba(238,232,205,0.035), rgba(103,130,68,0.018)),
    var(--surface-muted);
}
.proof-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  letter-spacing: var(--tracking-xwide);
  text-transform: uppercase;
  color: var(--fg3);
}
.proof-item strong,
.authority-item strong {
  display: block;
  color: var(--fg1);
  font-size: var(--fs-md);
  line-height: 1.35;
  font-weight: 500;
}

.hero-form {
  display: flex;
  gap: 8px;
  max-width: 460px;
  margin-bottom: 16px;
}
.hero-form input {
  flex: 1;
  background: var(--bg-input);
  color: var(--fg1);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  transition: border-color var(--motion-fast);
  min-width: 0;
}
.hero-form input::placeholder { color: var(--fg3); }
.hero-form input:focus {
  outline: none;
  border-color: var(--border-accent);
  box-shadow: 0 0 0 3px rgba(232,184,64,0.12);
}
.hero-form button {
  background: var(--accent);
  color: var(--fg-inverse);
  border: 1px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 13px 20px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--motion-fast), color var(--motion-fast);
  white-space: nowrap;
}
.hero-form button:hover { background: var(--accent-strong); }
.hero-form button:disabled { opacity: 0.55; cursor: not-allowed; }

.hero-status {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--tracking-micro);
  color: var(--fg2);
  min-height: 18px;
}
.hero-status.ok  { color: var(--success-bright); }
.hero-status.err { color: var(--danger-soft); }

@media (max-width: 520px) {
  .hero { padding: 72px 0 64px; }
  .hero h1 { font-size: 42px; }
  .hero .lede { font-size: 17px; }
  .hero-proof-grid,
  .authority-grid { grid-template-columns: 1fr; }
  .hero-form { flex-direction: column; }
  .hero-form button { width: 100%; }
}

@media (min-width: 521px) and (max-width: 760px) {
  .hero h1 {
    font-size: 56px;
    max-width: 100%;
  }
}

/* ── generic section ──────────────────────────────────────── */
section.block {
  padding: 80px 0;
  border-top: 1px solid var(--border-faint);
}
section.block h2 {
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: 0;
  margin: 0 0 16px;
  max-width: 22ch;
}

@media (max-width: 520px) {
  section.block h2 { font-size: 28px; }
}
section.block .section-lede {
  color: var(--fg2);
  font-size: var(--fs-lg);
  line-height: 1.55;
  max-width: 58ch;
  margin: 0 0 48px;
}

/* ── card primitive (paper-over-dark) ─────────────────────── */
.card {
  background:
    var(--surface-elevated),
    var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  position: relative;
}

/* ── footer ───────────────────────────────────────────────── */
footer.foot {
  padding: 48px 0 56px;
  border-top: 1px solid var(--border-faint);
  margin-top: 64px;
}
footer.foot .row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: var(--fs-xxs);
  letter-spacing: var(--tracking-xwide);
  text-transform: uppercase;
  color: var(--fg3);
}
footer.foot .row span { white-space: nowrap; }
footer.foot .row a {
  color: var(--fg2);
  border: none;
}
footer.foot .row a:hover { color: var(--fg1); }
footer.foot .copyright {
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-xwide);
  text-transform: uppercase;
  color: var(--fg-faint);
}

/* ── reduced motion ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}