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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  max-width: 1510px;
  margin: 0 auto;
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.78), transparent 32%),
    linear-gradient(180deg, rgba(252, 247, 237, 0.98), rgba(245, 234, 214, 0.96));
  backdrop-filter: blur(14px);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  transition: background 0.28s var(--ease), box-shadow 0.28s var(--ease), transform 0.28s var(--ease), top 0.28s var(--ease);
}

.site-header.is-scrolled {
  border-bottom: 1px solid rgba(192, 138, 53, 0.45);
}

.home-page .site-header {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  background: transparent;
  backdrop-filter: none;
  border-bottom: 0;
}

.home-page .site-header.is-scrolled {
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.78), transparent 32%),
    linear-gradient(180deg, rgba(252, 247, 237, 0.98), rgba(245, 234, 214, 0.96));
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(192, 138, 53, 0.45);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  padding-top: 0.95rem;
  padding-bottom: 0.95rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1rem, 1.5vw, 1.28rem);
  color: var(--navy-deep);
  white-space: nowrap;
  transition: color 0.28s var(--ease);
}

.brand-icon {
  width: 43px;
  height: 43px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: clamp(1.45rem, 3vw, 3.45rem);
  align-items: center;
}

.nav-links a {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ink);
  position: relative;
  padding-bottom: 6px;
  transition: color 0.2s var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--navy-deep);
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 50%;
  width: 28px;
  transform: translateX(-50%);
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 50%;
  color: var(--navy-deep);
  transition: background 0.2s var(--ease);
}

.nav-toggle:hover {
  background: rgba(192, 138, 53, 0.12);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-deep);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 860px) {
  .site-header {
    overflow: visible;
  }

  .site-header .container {
    position: relative;
    min-height: 66px;
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
  }

  .nav-toggle {
    display: flex;
    flex-shrink: 0;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 1rem;
    right: 1rem;
    z-index: 1001;
    background: rgba(250, 246, 238, 0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem;
    border: 1px solid rgba(192, 138, 53, 0.16);
    border-radius: 10px;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
    box-shadow: 0 16px 36px rgba(15, 31, 61, 0.14);
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 42px;
    padding: 0 0.85rem;
    border-bottom: 0;
    border-radius: 6px;
    font-size: 0.9rem;
  }

  .nav-links a:hover,
  .nav-links a.active {
    background: rgba(192, 138, 53, 0.1);
  }

  .nav-links a.active::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 0;
    width: 100%;
    margin: 0 auto;
    border-radius: 0;
  }

  .site-header .container {
    min-height: 64px;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .brand {
    max-width: calc(100% - 54px);
    gap: 0.45rem;
    font-size: clamp(0.76rem, 3.2vw, 0.9rem);
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .brand-icon {
    width: 32px;
    height: 32px;
  }

  .nav-links {
    left: 0;
    right: 0;
  }
}