/* ============================================
   EA Summit: Geneva 2026 — stylesheet
   ============================================ */

:root {
  /* Neutral scale (zinc-like) */
  --bg: #09090b;
  --bg-elevated: #131316;
  --bg-card: #18181b;
  --border: #27272a;
  --border-light: #3f3f46;
  --text: #fafafa;
  --text-muted: #d4d4d8;
  --text-dim: #a1a1aa;
  --text-faint: #71717a;

  /* Accent — teal */
  --accent-100: #e9f6f7;
  --accent-200: #c7eaed;
  --accent-300: #a8dde3;
  --accent-400: #72c4cf;
  --accent-500: #43aaba;
  --accent-600: #3693a8;
  --accent-700: #26738c;
  --accent-900: #0d3a54;

  --font-body: "Inter", sans-serif;
  --font-heading: "Lexend", sans-serif;

  --radius: 14px;
  --radius-sm: 8px;
  --wrap: 1120px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 0.6em;
  color: var(--text);
}

h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 700; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; color: var(--text-dim); }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-400); text-decoration: none; }
a:hover { color: var(--accent-300); }

ul, ol { padding-left: 1.2em; color: var(--text-dim); }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent-500);
  color: #05171e;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 200;
}
.skip-link:focus { left: 16px; top: 16px; }

/* Status bar */
.status-bar {
  background: var(--accent-900);
  color: var(--accent-200);
  text-align: center;
  font-size: 0.85rem;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
}
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-400);
  margin-right: 8px;
  box-shadow: 0 0 0 3px rgba(114, 196, 207, 0.2);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text) !important;
}
.brand span { color: var(--accent-400); }

.primary-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.primary-nav a {
  color: var(--text-muted);
  font-size: 0.92rem;
  white-space: nowrap;
}
.primary-nav a:hover { color: var(--text); }

.nav-cta {
  background: var(--accent-500);
  color: #05171e !important;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
  transition: background 0.15s ease;
}
.nav-cta:hover { background: var(--accent-400); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 72px;
  border-bottom: 1px solid var(--border);
}
.hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(circle, rgba(67, 170, 186, 0.28) 0%, rgba(67, 170, 186, 0) 70%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 780px; }

.eyebrow {
  color: var(--accent-400);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.hero-lede {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 640px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent-500);
  color: #05171e !important;
}
.btn-primary:hover { background: var(--accent-400); transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--text) !important;
  border-color: var(--border-light);
}
.btn-ghost:hover { border-color: var(--accent-400); color: var(--accent-300) !important; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.meta-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
}
.meta-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}
.meta-value { font-size: 0.92rem; font-weight: 600; color: var(--text); }

/* Sections */
.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}
.section-alt { background: var(--bg-elevated); }

.section-kicker {
  color: var(--accent-400);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-lede {
  max-width: 640px;
  font-size: 1.05rem;
}

.section-note {
  margin-top: 28px;
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-grid h2 { max-width: 520px; }
.about-cards {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.info-card h3 { color: var(--accent-300); margin-bottom: 10px; }

/* Cards grid (who it's for) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 36px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.card-icon {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--accent-500);
  margin-bottom: 12px;
}

/* Program highlight list */
.highlight-list {
  list-style: none;
  padding: 0;
  margin: 36px 0 0;
  display: grid;
  gap: 18px;
}
.highlight-list li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-500);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
}
.highlight-list h3 { margin-bottom: 6px; font-size: 1.02rem; }
.highlight-list p { margin: 0; font-size: 0.95rem; }

/* Apply / pricing */
.apply-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}
.steps-list { margin: 20px 0 28px; }
.steps-list li { margin-bottom: 10px; }

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.pricing-card h3 { margin-bottom: 8px; }
.pricing-note { font-size: 0.88rem; }
.pricing-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-top: 1px solid var(--border);
  font-weight: 600;
}
.pricing-row .price { color: var(--accent-300); }

/* Practical info */
.practical-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.practical-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
}
.practical-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-400);
  font-weight: 600;
}
.practical-value { color: var(--text); font-size: 1rem; }

/* FAQ */
.faq-list {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 22px;
}
.faq-item summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent-400);
  font-size: 1.3rem;
  margin-left: 16px;
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p { padding-bottom: 18px; }

/* CTA section */
.cta-section { border-bottom: none; }
.cta-inner { max-width: 640px; text-align: left; }
.cta-inner h2 { margin-bottom: 14px; }

/* Footer */
.site-footer {
  background: var(--bg-elevated);
  padding: 56px 0 24px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.footer-brand { margin: 0 0 6px; }
.footer-note { color: var(--text-faint); font-size: 0.9rem; margin: 0; }
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-end;
  font-size: 0.92rem;
}
.footer-bottom {
  padding-top: 20px;
}
.footer-bottom p {
  color: var(--text-faint);
  font-size: 0.82rem;
  margin: 0;
}

/* Responsive */
@media (max-width: 860px) {
  .about-grid, .apply-grid { grid-template-columns: 1fr; }
  .cards-grid, .practical-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
  .footer-links { align-items: flex-start; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 24px 20px;
    display: none;
  }
  .primary-nav.open { display: flex; }
  .primary-nav a {
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-cta {
    margin-top: 12px;
    text-align: center;
    justify-content: center;
  }
  .hero { padding: 64px 0 48px; }
  .section { padding: 56px 0; }
}