/* ============================================================
   Audexia website — shared styles
   Builds on tokens.css. No gradients. Slate-only palette.
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--aud-font-sans);
  color: var(--aud-fg-1);
  background: var(--aud-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--aud-brand); text-decoration: none; transition: color 150ms cubic-bezier(0.4,0,0.2,1); }
a:hover { color: var(--aud-ink); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Layout ---------- */
.aud-container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}
.aud-section { padding: 96px 0; }
.aud-section--tight { padding: 64px 0; }
.aud-section--surface { background: var(--aud-surface); }
.aud-section--ink { background: var(--aud-slate-800); color: var(--aud-white); }
.aud-section--deep { background: var(--aud-ink); color: var(--aud-white); }

/* ---------- Top nav ---------- */
.aud-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 0.5px solid var(--aud-border);
}
.aud-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.aud-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--aud-ink);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.aud-nav__brand:hover { color: var(--aud-ink); text-decoration: none; }
.aud-nav__brand img { height: 26px; width: 26px; display: block; }
.aud-nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.aud-nav__links a {
  color: var(--aud-fg-2);
  font-size: 14px;
  font-weight: 400;
}
.aud-nav__links a:hover { color: var(--aud-ink); text-decoration: none; }
.aud-nav__links a.is-active { color: var(--aud-ink); }
.aud-nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  background: var(--aud-ink);
  color: var(--aud-white) !important;
  border-radius: var(--aud-radius-sm);
  font-size: 14px;
  font-weight: 500;
  border: 0;
  transition: background 150ms cubic-bezier(0.4,0,0.2,1);
}
.aud-nav__cta:hover { background: #000; text-decoration: none; }

/* ---------- Buttons ---------- */
.aud-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--aud-radius-sm);
  font-family: var(--aud-font-sans);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: 0;
  transition: background 150ms cubic-bezier(0.4,0,0.2,1), color 150ms cubic-bezier(0.4,0,0.2,1), border-color 150ms cubic-bezier(0.4,0,0.2,1);
  text-decoration: none;
}
.aud-btn--primary { background: var(--aud-ink); color: var(--aud-white); }
.aud-btn--primary:hover { background: #000; color: var(--aud-white); text-decoration: none; }
.aud-btn--primary-on-dark { background: var(--aud-white); color: var(--aud-ink); }
.aud-btn--primary-on-dark:hover { background: #f1f5f9; color: var(--aud-ink); text-decoration: none; }
.aud-btn--ghost {
  background: transparent;
  color: var(--aud-ink);
  border: 1px solid var(--aud-border-strong);
}
.aud-btn--ghost:hover { background: var(--aud-slate-100); text-decoration: none; }
.aud-btn--ghost-on-dark {
  background: transparent;
  color: var(--aud-white);
  border: 1px solid rgba(255,255,255,0.25);
}
.aud-btn--ghost-on-dark:hover { background: rgba(255,255,255,0.06); color: var(--aud-white); text-decoration: none; }
.aud-btn--sm { height: 36px; padding: 0 16px; font-size: 14px; }
.aud-btn:focus-visible { outline: none; box-shadow: var(--aud-focus-ring); }

/* ---------- Tags / chips ---------- */
.aud-eyebrow {
  font-family: var(--aud-font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--aud-brand);
}
.aud-eyebrow--on-dark { color: #94a3b8; }
.aud-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 26px;
  padding: 0 10px;
  border-radius: var(--aud-radius-pill);
  background: var(--aud-slate-100);
  color: var(--aud-fg-2);
  font-size: 12px;
  font-weight: 500;
  border: 0.5px solid var(--aud-border);
}
.aud-pill--dark {
  background: rgba(255,255,255,0.04);
  color: #cbd5e1;
  border-color: rgba(255,255,255,0.10);
}
.aud-pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--aud-success);
  box-shadow: 0 0 0 3px rgba(5,150,105,0.18);
}

/* ---------- Headings (page-scope, slightly larger than tokens) ---------- */
.aud-display-xl {
  font-family: var(--aud-font-sans);
  font-size: clamp(40px, 5.6vw, 64px);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--aud-ink);
  margin: 0;
}
.aud-section-title {
  font-family: var(--aud-font-sans);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--aud-ink);
  margin: 0 0 16px 0;
}
.aud-section-lead {
  font-family: var(--aud-font-sans);
  font-size: 17px;
  line-height: 1.55;
  color: var(--aud-fg-2);
  max-width: 640px;
  margin: 0;
}
.aud-section--ink .aud-section-title,
.aud-section--deep .aud-section-title { color: var(--aud-white); }
.aud-section--ink .aud-section-lead,
.aud-section--deep .aud-section-lead { color: #cbd5e1; }

/* ---------- Cards ---------- */
.aud-card {
  background: var(--aud-white);
  border: 0.5px solid var(--aud-border);
  border-radius: var(--aud-radius-md);
  padding: 24px;
  box-shadow: var(--aud-shadow-1);
}
.aud-card--data { background: var(--aud-surface); }
.aud-card--accent {
  border-left: 2px solid var(--aud-brand);
  border-radius: 0 var(--aud-radius-md) var(--aud-radius-md) 0;
}
.aud-card--dark {
  background: var(--aud-slate-700);
  border: 0.5px solid rgba(255,255,255,0.08);
  color: var(--aud-white);
}

/* ---------- Footer ---------- */
.aud-footer {
  background: var(--aud-ink);
  color: #cbd5e1;
  padding: 64px 0 32px;
}
.aud-footer a { color: #cbd5e1; }
.aud-footer a:hover { color: var(--aud-white); text-decoration: none; }
.aud-footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 0.5px solid rgba(255,255,255,0.08);
}
.aud-footer__col h4 {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #94a3b8;
  margin: 0 0 16px 0;
}
.aud-footer__col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.aud-footer__col ul a { font-size: 14px; }
.aud-footer__brand { display: flex; align-items: center; gap: 10px; color: var(--aud-white); font-weight: 600; margin-bottom: 16px; }
.aud-footer__brand img { height: 28px; width: 28px; }
.aud-footer__brand span { font-size: 18px; letter-spacing: -0.01em; }
.aud-footer__tag { font-size: 14px; line-height: 1.6; color: #94a3b8; max-width: 320px; }
.aud-footer__legal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  font-size: 12px;
  color: #64748b;
}
.aud-footer__legal .mono { font-family: var(--aud-font-mono); }

@media (max-width: 880px) {
  .aud-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .aud-section { padding: 64px 0; }
  .aud-nav__links { display: none; }
  .aud-footer__grid { grid-template-columns: 1fr; }
  .aud-footer__legal { flex-direction: column; gap: 8px; align-items: flex-start; }
}

/* Reusable mono-tagged label */
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--aud-font-mono);
  font-size: 12px;
  color: var(--aud-fg-3);
  letter-spacing: 0;
}
.kicker::before {
  content: "";
  width: 14px; height: 1px; background: var(--aud-brand); display: inline-block;
}
.aud-section--ink .kicker, .aud-section--deep .kicker { color: #94a3b8; }
.aud-section--ink .kicker::before, .aud-section--deep .kicker::before { background: #cbd5e1; }