/* Au79 Tech — institutional site
   Palette and rules from au79-brand/README.md:
   gold gradient #F6D27A → #D9A441 → #9A7226 on Silicon Black #221D15;
   Assay Paper #EDE5D6 for text, Muted Bronze #8F7A4D secondary,
   Bronze #8A6420 stands in for gold on light grounds. */

:root {
  --gold-hi: #F6D27A;
  --gold: #D9A441;
  --gold-deep: #9A7226;
  --black: #221D15;
  --black-deep: #1B1710;
  --black-raised: #2B2419;
  --paper: #EDE5D6;
  --bronze-muted: #8F7A4D;
  --bronze-on-light: #8A6420;
  --ink: #1C2B3A; /* Paceroo ink, used only inside its light card */

  --sans: "Helvetica Neue", Helvetica, Inter, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--black);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold-hi); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

b, strong { font-weight: 700; }

/* ---------- header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 68rem;
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--paper);
}
.brand:hover { text-decoration: none; }

.brand-tile { width: 34px; height: 34px; flex: none; }
.tile-au { font-family: var(--sans); font-size: 96px; font-weight: 700; }

.brand-word { font-size: 1.25rem; font-weight: 300; letter-spacing: 0.01em; }
.brand-word b {
  background: linear-gradient(180deg, #F8DA8C, #C79437);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.site-nav a {
  color: var(--bronze-muted);
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.site-nav a:hover { color: var(--gold-hi); text-decoration: none; }

/* ---------- hero ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: center;
  gap: 3rem;
  max-width: 68rem;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 5.5rem;
}

.kicker {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--bronze-muted);
  text-transform: uppercase;
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 1.2rem;
  background: linear-gradient(135deg, #F6D27A 0%, #D9A441 55%, #C79437 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  font-size: 1.15rem;
  max-width: 34em;
  color: var(--paper);
  margin: 0 0 2rem;
}

.hero-actions { display: flex; gap: 0.9rem; flex-wrap: wrap; margin: 0; }

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  font-weight: 400;
  font-size: 0.95rem;
}
.btn:hover { text-decoration: none; }

.btn-gold {
  background: linear-gradient(135deg, var(--gold-hi), var(--gold) 55%, var(--gold-deep));
  color: #221807;
  font-weight: 700;
}
.btn-gold:hover { filter: brightness(1.07); }

.btn-ghost {
  border: 1px solid var(--gold-deep);
  color: var(--gold-hi);
}
.btn-ghost:hover { border-color: var(--gold); background: rgba(217, 164, 65, 0.08); }

.hero-tile { display: flex; justify-content: center; }
.hero-tile svg {
  width: min(280px, 60vw);
  height: auto;
  filter: drop-shadow(0 18px 50px rgba(0, 0, 0, 0.45));
}
.tile-number { font-family: var(--mono); font-size: 18px; fill: #C79437; }
.tile-symbol { font-family: var(--sans); font-size: 62px; font-weight: 700; }
.tile-label { font-family: var(--mono); font-size: 14px; letter-spacing: 7px; fill: var(--bronze-muted); }

/* ---------- sections ---------- */

.section {
  max-width: 68rem;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  border-top: 1px solid rgba(143, 122, 77, 0.25);
}

.section h2 {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 0 0 1.6rem;
}

.section-index {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--bronze-muted);
  margin-right: 0.8rem;
  vertical-align: 0.15em;
}

.section-lede {
  font-size: 1.15rem;
  margin: 0 0 1.2rem;
  color: var(--paper);
}

.section > p { max-width: 46em; }

/* ---------- apps ---------- */

.app-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 1.4rem;
  align-items: stretch;
}

.app-card {
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Paceroo's ink-on-paper identity gets a light card — raw gold never sits on
   light grounds, so accents inside use bronze. */
.app-card-paceroo {
  background: var(--paper);
  color: var(--ink);
}
.app-card-paceroo a { color: var(--bronze-on-light); font-weight: 400; }

.app-card-media {
  display: flex;
  justify-content: center;
  padding: 2.2rem 1.5rem 0.6rem;
}
.app-card-media img { width: min(230px, 70%); height: auto; }

.app-card-body { padding: 0.4rem 2rem 1.8rem; }
.app-card-paceroo .app-card-body h3 { margin: 0.4rem 0 0.1rem; font-size: 1.35rem; font-weight: 700; }

.app-tag {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bronze-on-light);
  margin: 0 0 0.8rem;
}

.app-card-paceroo p { font-weight: 400; }

.app-meta {
  font-family: var(--mono);
  font-size: 0.82rem;
  margin-bottom: 0;
}

.status-dot {
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #BF3A3A; /* Paceroo's goal-dot red */
  margin-right: 0.3rem;
}

.app-card-next {
  background: var(--black-raised);
  border: 1px dashed rgba(143, 122, 77, 0.5);
  justify-content: center;
}
.app-card-next .app-card-body { padding: 2rem; }
.app-card-next h3 { margin: 0 0 0.5rem; font-size: 1.1rem; font-weight: 700; color: var(--gold); }
.app-card-next p { color: var(--bronze-muted); margin: 0; }

/* ---------- company ---------- */

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.2rem;
  margin: 2.2rem 0 0;
}

.facts dt {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bronze-muted);
  margin-bottom: 0.25rem;
}
.facts dd { margin: 0; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid rgba(143, 122, 77, 0.25);
  text-align: center;
  padding: 3rem 1.5rem 3.5rem;
}

.footer-word { font-size: 1.3rem; margin: 0 0 0.4rem; }
.footer-word b {
  background: linear-gradient(180deg, #F8DA8C, #C79437);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.footer-line {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--bronze-muted);
  margin: 0 0 1.4rem;
}

.footer-legal { font-size: 0.85rem; color: var(--bronze-muted); margin: 0; }

/* ---------- responsive ---------- */

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 2.5rem; gap: 2.2rem; }
  .hero-tile { order: -1; }
  .hero-tile svg { width: min(190px, 55vw); }
  .app-grid { grid-template-columns: 1fr; }
  .site-header { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
}