/* ============================================
   HEADER & NAVIGATION
   ============================================ */

/* ── Topbar ── */
.topbar {
  background: var(--color-black);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1001;
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.topbar-left { display: flex; align-items: center; }

.topbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-gold);
  color: var(--color-white);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.topbar-cta:hover { background: var(--color-gold-light); transform: translateY(-1px); }

.topbar-center {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.topbar-contact {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-gray-400);
  font-size: .8rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.topbar-contact:hover { color: var(--color-gold); }
.topbar-contact svg { color: var(--color-gold); }

.topbar-social { display: flex; align-items: center; gap: var(--space-md); }
.topbar-social a {
  color: var(--color-gray-400);
  display: flex; align-items: center;
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.topbar-social a:hover { color: var(--color-gold); transform: translateY(-2px); }

/* ════════════════════════════════════════
   MAIN HEADER
════════════════════════════════════════ */
.site-header {
  background: var(--color-white);
  height: var(--header-height);
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,.07);
  transition: box-shadow var(--transition-base);
}
.site-header.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,.14); }

.site-header .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.site-logo {
  position: absolute;
  left: var(--space-xl);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 2;
}

.site-logo img {
  height: 58px;
  width: auto;
  display: block;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  position: relative;
  z-index: 1;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  position: absolute;
  right: var(--space-xl);
  top: 50%;
  transform: translateY(-50%);
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  background: none;
  border: none;
  z-index: 2;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-navy);
  border-radius: 1px;
  transition: all var(--transition-base);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Nav links */
.nav-link {
  display: block;
  padding: 8px 18px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition-base);
  border-radius: 1px;
}

.nav-link:hover,
.nav-link.active { color: var(--color-gold); }

.nav-link:hover::after,
.nav-link.active::after { width: calc(100% - 36px); }

/* ════════════════════════════════════════
   MOBILE  ≤ 900px
════════════════════════════════════════ */
@media (max-width: 900px) {
  :root {
    --header-height: 64px;
    --topbar-height: 38px;
  }

  .topbar-center { display: none; }
  .topbar-cta { padding: 6px 14px; font-size: .75rem; }
  .topbar-cta span { display: none; }

  .site-header .container {
    justify-content: flex-start;
  }

  .site-logo {
    position: static;
    transform: none;
    margin-left: var(--space-md);
  }

  .site-logo img {
    height: 44px;
  }

  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: calc(var(--topbar-height) + var(--header-height));
    left: 0; right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-sm) var(--space-md) var(--space-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition-base), opacity var(--transition-base);
    pointer-events: none;
    z-index: 999;
  }
  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-link {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-gray-200);
    font-size: .9rem;
    white-space: normal;
  }
  .nav-link::after { display: none; }
}

@media (max-width: 480px) {
  .topbar-social { display: none; }
}