/* ═══════════════════════════════════════════════════════════════════
   USLege Hackathon 2026 · Demo Night microsite
   Shared styles for all four pages.
   ═══════════════════════════════════════════════════════════════════ */

@import url("colors_and_type.css");

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--text-md);
  background-color: var(--teal-1);
  background-image:
    radial-gradient(1600px 900px at 78% 8%, rgba(0,191,179,0.10) 0%, transparent 55%),
    radial-gradient(1200px 800px at 12% 82%, rgba(0,126,119,0.08) 0%, transparent 50%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' viewBox='0 0 240 240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.02 0'/></filter><rect width='240' height='240' filter='url(%23n)'/></svg>");
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--primary-hi); text-decoration: none; }
a:hover { color: var(--primary); }

/* ─── NAV ─── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px clamp(20px,4vw,64px);
  background: rgba(2,27,26,0.78);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--rule);
}
.nav-brand { display: flex; align-items: center; gap: 12px; color: var(--text-hi); text-decoration: none; }
.nav-brand .mark {
  width: 34px; height: 34px; border-radius: 8px;
  background: var(--text-hi); display: grid; place-items: center;
  color: var(--teal-1);
  font-family: var(--display); font-style: italic; font-weight: 600; font-size: 19px;
}
.nav-brand .wordmark { display: flex; flex-direction: column; line-height: 1; }
.nav-brand .wordmark .name { font-family: var(--display); font-weight: 500; font-size: 22px; letter-spacing: -0.012em; color: var(--text-hi); }
.nav-brand .wordmark .locus { margin-top: 3px; font-family: var(--mono); font-size: 9.5px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-xlo); }
.nav-links { display: flex; gap: 28px; font-size: 14px; font-weight: 500; }
.nav-links a { color: var(--text-md); opacity: 0.78; transition: opacity .2s, color .2s; }
.nav-links a:hover, .nav-links a.is-active { opacity: 1; color: var(--text-hi); }
.nav-cta { display: flex; gap: 10px; align-items: center; }
@media (max-width: 760px) {
  .nav-links { display: none; }
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 100px; font-family: var(--sans); font-weight: 500;
  border: 0; cursor: pointer; text-decoration: none;
  transition: transform .2s var(--ease-out), box-shadow .2s var(--ease-out), background .2s, color .2s;
  white-space: nowrap;
}
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-md { padding: 11px 20px; font-size: 14px; font-weight: 600; }
.btn-lg { padding: 16px 28px; font-size: 15.5px; font-weight: 600; letter-spacing: -0.005em; }
.btn-primary { background: var(--primary); color: var(--teal-0); box-shadow: var(--shadow-glow); }
.btn-primary:hover { background: var(--primary-hi); transform: translateY(-1px); box-shadow: var(--shadow-glow-hi); color: var(--teal-0); }
.btn-primary:active { transform: translateY(0); }
.btn-ghost { color: var(--text-hi); border: 1px solid var(--rule-strong); background: rgba(232,244,242,0.02); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary-hi); }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; transform: none !important; }

/* ─── EYEBROW ─── */
.eyebrow {
  font-family: var(--mono);
  font-size: 11.5px; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--primary-hi);
  display: inline-flex; align-items: center; gap: 12px;
}
.eyebrow::before { content:''; width: 24px; height: 1px; background: var(--primary); }
.eyebrow.muted { color: var(--text-lo); }
.eyebrow.muted::before { background: var(--rule-teal-2); }

/* ─── CONTAINERS ─── */
.container { max-width: var(--max-w); margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }
.editorial { max-width: 660px; margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(56px, 9vh, 112px) 0; }
.section.tight { padding: clamp(40px, 6vh, 72px) 0; }

/* ─── FOOTER ─── */
.footer {
  border-top: 1px solid var(--rule);
  background: var(--teal-0);
  padding: 36px clamp(20px,4vw,64px);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 18px;
  margin-top: 60px;
}
.footer .foot-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--text-lo);
}
.footer .foot-brand img { height: 22px; width: auto; opacity: 0.85; }
.footer .foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer .foot-links a { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-lo); }
.footer .foot-links a:hover { color: var(--text-hi); }
.footer .foot-meta { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-xlo); }

/* ─── CARD ─── */
.card {
  background: var(--teal-2);
  border: 1px solid rgba(0, 191, 179, 0.12);
  border-radius: 14px;
  padding: 24px;
  box-shadow: var(--shadow-card), var(--shadow-inner);
}

/* ─── DIVIDER RULE ─── */
.rule { height: 1px; background: var(--rule-teal); margin: 28px 0; border: 0; }

/* ─── ENTRANCE ─── */
@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.rise { animation: rise 800ms var(--ease-out) both; }
.rise.d-1 { animation-delay: 80ms; }
.rise.d-2 { animation-delay: 160ms; }
.rise.d-3 { animation-delay: 240ms; }
.rise.d-4 { animation-delay: 320ms; }
.rise.d-5 { animation-delay: 400ms; }

/* ─── PULSE DOT ─── */
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--primary); }
  50%      { opacity: 0.6; box-shadow: 0 0 16px var(--primary); }
}
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  animation: pulse 2s ease-in-out infinite;
  display: inline-block;
}