/* SANGU site header */

.site-header {
  position: fixed;
  top: max(var(--space-sm), env(safe-area-inset-top, 0px));
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  width: fit-content;
  max-width: min(calc(100% - var(--space-lg)), 960px);
  background: var(--color-cream);
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 24px rgba(8, 5, 23, 0.12);
  transition: top 0.3s, box-shadow 0.3s;
}

.site-header.is-scrolled {
  top: max(var(--space-xs), env(safe-area-inset-top, 0px));
  box-shadow: 0 2px 16px rgba(8, 5, 23, 0.15);
}

.page-home .site-header {
  background: rgba(255, 252, 235, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.page-home .site-header.is-scrolled {
  background: var(--color-cream);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.site-header__bar {
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.45rem 0.85rem;
  min-height: var(--header-height);
}

/* Hamburger (mobile only) */
.site-header__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 48px;
  height: 44px;
  padding: 0;
  grid-column: 1;
  justify-self: start;
}

.site-header__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  transition: transform 0.3s, opacity 0.3s;
}

.site-header.is-menu-open .site-header__toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-menu-open .site-header__toggle span:nth-child(2) {
  opacity: 0;
}

.site-header.is-menu-open .site-header__toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Logo: mobile center column */
.site-header__logo--mobile {
  grid-column: 2;
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: 36px;
}

/* Desktop nav: hidden on mobile */
.site-header__nav {
  display: none;
}

.site-header__logo img {
  width: auto;
  height: 32px;
  display: block;
}

.site-header__link {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.6rem;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-navy);
  border-radius: var(--radius-soft);
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}

.site-header__link:hover,
.site-header__link.is-active {
  background: rgba(67, 42, 191, 0.1);
  color: var(--color-purple);
}

.site-header__logo--desktop {
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: auto;
  height: 36px;
}

/* Services dropdown */
.site-header__dropdown {
  position: relative;
  flex-shrink: 0;
}

.site-header__dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.35rem 0.6rem;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-navy);
  border-radius: var(--radius-soft);
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}

.site-header__dropdown-btn::after {
  content: '';
  border: 4px solid transparent;
  border-top-color: currentColor;
  margin-top: 3px;
}

.site-header__dropdown-btn:hover,
.site-header__dropdown.is-open .site-header__dropdown-btn {
  background: rgba(67, 42, 191, 0.1);
  color: var(--color-purple);
}

.site-header__dropdown-panel {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-xs));
  left: 50%;
  transform: translateX(-50%);
  min-width: 200px;
  background: var(--color-cream);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-soft);
  padding: var(--space-xs);
  box-shadow: 0 8px 24px rgba(8, 5, 23, 0.12);
  z-index: 1100;
}

.site-header__dropdown.is-open .site-header__dropdown-panel {
  display: block;
}

.site-header__dropdown-panel a {
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  border-radius: 6px;
  white-space: nowrap;
}

.site-header__dropdown-panel a:hover,
.site-header__dropdown-panel a.is-active {
  background: rgba(67, 42, 191, 0.08);
  color: var(--color-purple);
}

/* Lang button */
.site-header__bar > .lang-switcher__btn {
  grid-column: 3;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 32px;
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-pill);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
  transition: background 0.2s, color 0.2s;
}

.site-header__bar > .lang-switcher__btn:hover {
  background: var(--color-navy);
  color: var(--color-cream);
}

/* Mobile drawer */
.site-header__drawer {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-sm));
  left: 0;
  right: 0;
  background: var(--color-cream);
  border-radius: var(--radius-soft);
  padding: var(--space-sm);
  box-shadow: 0 8px 24px rgba(8, 5, 23, 0.15);
  z-index: 1100;
}

.site-header.is-menu-open .site-header__drawer {
  display: block;
}

.site-header__drawer-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.site-header__drawer-list li {
  width: 100%;
}

.site-header__drawer-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--color-navy);
  border-radius: var(--radius-soft);
  transition: background 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .site-header__drawer-link:hover,
  .site-header__drawer-link.is-active {
    background: rgba(67, 42, 191, 0.1);
    color: var(--color-purple);
  }
}

.site-header__drawer-link.is-active {
  background: rgba(67, 42, 191, 0.1);
  color: var(--color-purple);
}

/* --- Mobile / tablet --- */
@media (max-width: 899px) {
  .site-header {
    width: min(calc(100% - var(--space-md)), 420px);
    min-width: min(calc(100% - var(--space-md)), 320px);
  }

  .site-header.is-menu-open {
    width: min(calc(100% - var(--space-md)), 420px);
  }

  .site-header__drawer {
    left: 0;
    right: 0;
    padding: var(--space-sm) var(--space-xs);
    overflow: hidden;
  }

  .site-header__drawer-list {
    gap: 0.35rem;
  }

  .site-header__bar > .lang-switcher__btn {
    width: 48px;
    min-width: 48px;
  }
}

/* --- Desktop (900px+) --- */
@media (min-width: 900px) {
  .site-header__bar {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.5rem 0.85rem;
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__logo--mobile {
    display: none;
  }

  .site-header__nav {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
  }

  .site-header__logo--desktop {
    display: flex;
  }

  .site-header__drawer {
    display: none !important;
  }

  .site-header__bar > .lang-switcher__btn {
    margin-left: 0.15rem;
    flex-shrink: 0;
    width: auto;
  }
}