/* Shared site theme — header, footer, base layout.
   Mirrors index.html so all pages share the same look & navigation. */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #0a0a2e 0%, #1a1a4e 50%, #0d0d3e 100%);
  color: #e0e0e0;
  min-height: 100vh;
}

a { color: #a2d5f2; text-decoration: none; }
a:hover { color: #ffd700; }

/* Header */
.header {
  background: linear-gradient(135deg, #e52521 0%, #c81d1d 50%, #a01515 100%);
  border-bottom: 3px solid #ffd700;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.logo {
  font-size: 1.4rem;
  font-weight: 900;
  color: #ffd700;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  letter-spacing: -0.5px;
  text-decoration: none;
}
.logo .star { color: #fff; font-size: 1.6rem; }
.header-nav { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-nav.primary {
  background: #ffd700;
  color: #1a1a2e;
  border-color: #ffd700;
}
.btn-nav.primary:hover { background: #ffe44d; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(255,215,0,0.4); }
.btn-nav.secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-nav.secondary:hover { background: rgba(255,255,255,0.15); border-color: #fff; }
.header-nav a.btn-nav.ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.header-nav a.btn-nav.ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
}

/* Footer */
.footer {
  text-align: center;
  padding: 20px;
  color: #6070a0;
  font-size: 0.8rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 10px;
}
.footer a { color: #8090c0; text-decoration: none; }
.footer a:hover { color: #ffd700; }

/* Responsive header */
@media (max-width: 640px) {
  .header-inner { flex-direction: column; text-align: center; }
  .header-nav { justify-content: center; width: 100%; }
  .logo { font-size: 1.15rem; }
  .btn-nav { padding: 10px 14px; font-size: 0.82rem; min-height: 44px; }
}