/* ─── Variables ──────────────────────────────────────────────────────────── */
:root {
  --bg:        #080d1a;
  --surface:   #0e1528;
  --border:    #1c2640;
  --accent:    #2563eb;
  --accent-dim:#1d4ed8;
  --text:      #e8eaf0;
  --muted:     #8892a4;
  --former:    #4b5568;
  --font:      system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:      ui-monospace, "Cascadia Code", "Fira Code", monospace;
  --radius:    6px;
  --max:       1100px;
}

/* ─── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font), serif;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }

/* ─── Layout helpers ─────────────────────────────────────────────────────── */
.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section--sm { padding: 56px 0; }

/* ─── Nav ────────────────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(8, 13, 26, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo .logo-mark {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); text-decoration: none; }

/* ─── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  padding: 120px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 60% 40%, rgba(37,99,235,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(37,99,235,0.06) 0%, transparent 60%);
  pointer-events: none;
}
.hero-label {
  font-family: var(--mono), serif;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  max-width: 660px;
  margin-bottom: 24px;
}
.hero h1 span { color: var(--accent); }
.hero-sub {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 480px;
  margin-bottom: 40px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background 0.15s;
}
.btn:hover { background: var(--accent-dim); text-decoration: none; }
.btn--ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--muted); background: var(--surface); }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* ─── Orbit graphic (CSS only) ───────────────────────────────────────────── */
.orbit-graphic {
  position: absolute;
  right: -60px;
  top: 50%;
  transform: translateY(-50%);
  width: 460px;
  height: 460px;
  pointer-events: none;
  opacity: 0.18;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--accent);
}
.orbit-ring:nth-child(2) { inset: 40px; opacity: 0.6; }
.orbit-ring:nth-child(3) { inset: 100px; opacity: 0.4; }
.orbit-dot {
  position: absolute;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  top: 14%;
  left: 68%;
  box-shadow: 0 0 12px var(--accent);
}

/* ─── Stats bar ──────────────────────────────────────────────────────────── */
.stats {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}
.stat-item { text-align: center; }
.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }

/* ─── Cards grid ─────────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card-icon {
  font-size: 1.4rem;
  margin-bottom: 16px;
  line-height: 1;
}
.card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.card p { font-size: 0.875rem; color: var(--muted); line-height: 1.6; }

/* ─── Section headings ───────────────────────────────────────────────────── */
.section-label {
  font-family: var(--mono), serif;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-sub { color: var(--muted); max-width: 520px; margin-bottom: 48px; }

/* ─── Team page ──────────────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s;
}
.team-card:hover { border-color: var(--border); }
.team-card.former {
  opacity: 0.55;
  filter: grayscale(0.4);
}
.team-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--muted);
  flex-shrink: 0;
}
.team-avatar.accent { background: rgba(37,99,235,0.15); color: var(--accent); }
.team-name { font-weight: 700; font-size: 1rem; }
.team-role { font-size: 0.8rem; color: var(--muted); line-height: 1.4; }
.team-bio { font-size: 0.8rem; color: var(--muted); line-height: 1.6; }
.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-family: var(--mono), serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 3px;
  font-weight: 600;
  border: 1px solid;
  width: fit-content;
}
.badge--former { color: var(--former); border-color: var(--former); }
.badge--active { color: var(--accent); border-color: var(--accent); }

/* ─── Program highlight ──────────────────────────────────────────────────── */
.program-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 720px;
}
.program-block .program-name {
  font-family: var(--mono), serif;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}
.program-block h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.program-block p { color: var(--muted); font-size: 0.9rem; line-height: 1.7; }

/* ─── About page ─────────────────────────────────────────────────────────── */
.prose {
  max-width: 680px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
}
.prose h2 { color: var(--text); font-size: 1.3rem; font-weight: 700; margin: 40px 0 12px; }
.prose p { margin-bottom: 16px; }
.prose strong { color: var(--text); }

/* ─── Contact page ───────────────────────────────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 700px) { .contact-layout { grid-template-columns: 1fr; } }
.contact-info h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 16px; }
.contact-info p { color: var(--muted); font-size: 0.9rem; line-height: 1.7; margin-bottom: 24px; }
.contact-detail { display: flex; flex-direction: column; gap: 14px; }
.contact-item { font-size: 0.85rem; }
.contact-item span { display: block; color: var(--muted); font-size: 0.75rem; margin-bottom: 3px; text-transform: uppercase; letter-spacing: 0.08em; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-family: var(--font), serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 120px; }

/* ─── Page hero (inner pages) ────────────────────────────────────────────── */
.page-hero {
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}
.page-hero .section-label { margin-bottom: 10px; }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -0.02em; }
.page-hero p { color: var(--muted); margin-top: 12px; max-width: 520px; }

/* ─── Footer ─────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 80px;
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 0.8rem; color: var(--muted); }
.footer-links a:hover { color: var(--text); text-decoration: none; }
.footer-copy { font-size: 0.75rem; color: var(--former); }

/* ─── Misc ───────────────────────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }
.text-muted { color: var(--muted); }
.mono {
  font-family: var(--mono), serif; }