/* ============================================================
   layout.css — header, nav, footer
   ============================================================ */

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000; height: var(--header-height);
  display: flex; align-items: center;
  background: rgba(10,10,15,0.65); border-bottom: 1px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base), backdrop-filter var(--transition-base);
}
.site-header.scrolled { background: rgba(10,10,15,0.92); backdrop-filter: blur(12px); border-bottom-color: var(--color-border); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: var(--space-6); width: 100%; }

.brand { display: inline-flex; align-items: center; }
/* Logo has heavy transparent padding on a 1536x1024 canvas — object-fit:cover
   in a fixed box crops the padding so the wordmark reads at header size. */
.brand-logo { width: 176px; height: 48px; object-fit: cover; object-position: center; filter: drop-shadow(0 2px 6px rgba(0,0,0,0.55)); transition: transform var(--transition-base); }
.brand:hover .brand-logo { transform: scale(1.03); }
.brand-logo-lg { width: 212px; height: 60px; }
@media (max-width: 420px) { .brand-logo { width: 150px; height: 42px; } }

/* Desktop nav */
.main-nav { display: none; }
.main-nav ul { display: flex; align-items: center; gap: var(--space-4); }
.main-nav a {
  font-family: var(--font-display); font-weight: 500; font-size: var(--text-base);
  color: var(--color-text-secondary); letter-spacing: 0.02em; padding-block: var(--space-2);
  white-space: nowrap; position: relative; transition: color var(--transition-base);
}
@media (min-width: 1180px) { .main-nav ul { gap: var(--space-6); } .main-nav a { font-size: var(--text-lg); } }
.main-nav a:hover { color: var(--color-text-primary); }
.main-nav a::after { content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0; background: var(--color-accent-gold); transition: width var(--transition-base); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--color-accent-gold); }
.main-nav a.active::after { width: 100%; }

.header-cta { display: none; }

/* Hamburger */
.nav-toggle {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; background: transparent; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); cursor: pointer; padding: 0 10px;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--color-text-primary); border-radius: 2px; transition: transform var(--transition-base), opacity var(--transition-base); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile overlay nav */
.mobile-nav {
  position: fixed; inset: 0; z-index: 1500;
  background: var(--color-gradient-hero);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--space-6);
  opacity: 0; visibility: hidden; transform: scale(1.03);
  transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
}
.mobile-nav.open { opacity: 1; visibility: visible; transform: scale(1); }
.mobile-nav a { font-family: var(--font-display); font-weight: 600; font-size: var(--text-3xl); color: var(--color-text-primary); }
.mobile-nav a.active, .mobile-nav a:hover { color: var(--color-accent-gold); }
.mobile-nav .btn { margin-top: var(--space-4); }
.mobile-nav-close { position: absolute; top: var(--space-6); right: var(--space-6); width: 48px; height: 48px; background: transparent; border: 1px solid var(--color-border); border-radius: var(--radius-md); color: var(--color-text-primary); font-size: var(--text-2xl); cursor: pointer; }
body.nav-open { overflow: hidden; }

@media (min-width: 1024px) {
  .main-nav { display: block; }
  .nav-toggle { display: none; }
}
@media (min-width: 1320px) { .header-cta { display: inline-flex; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-bg-secondary); border-top: 1px solid var(--color-border); margin-top: var(--space-24); }
.footer-top { display: grid; gap: var(--space-8); padding-block: var(--space-16); }
.footer-brand .brand { margin-bottom: var(--space-4); }
.footer-brand p { font-size: var(--text-sm); max-width: 34ch; }
.footer-cols { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--space-8); }
.footer-col h4 { font-size: var(--text-lg); color: var(--color-text-primary); margin-bottom: var(--space-4); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col a { font-size: var(--text-sm); color: var(--color-text-secondary); transition: color var(--transition-base); }
.footer-col a:hover { color: var(--color-accent-gold); }
.footer-social { display: inline-flex; align-items: center; gap: var(--space-2); background: linear-gradient(135deg,#0088cc,#0099dd); color: #fff; padding: var(--space-2) var(--space-4); border-radius: var(--radius-full); font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm); }
.footer-social img { width: 20px; height: 20px; }

.footer-disclaimer { border-top: 1px solid var(--color-border); padding-block: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); }
.footer-disclaimer p { font-size: var(--text-xs); line-height: 1.7; color: var(--color-text-muted); }
.footer-disclaimer .restricted-note { font-size: var(--text-xs); }

.footer-bottom { border-top: 1px solid var(--color-border); padding-block: var(--space-6); text-align: center; }
.footer-bottom p { font-size: var(--text-xs); color: var(--color-text-muted); }

@media (min-width: 900px) {
  .footer-top { grid-template-columns: 1.4fr 2fr; align-items: start; }
  .footer-cols { grid-template-columns: repeat(3,1fr); }
}