/* Header styles for LOP VENTURES LTD / Coldham Hall Restaurant */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(12, 6, 4, 0.96), rgba(12, 6, 4, 0.8));
  border-bottom: 1px solid var(--color-border-subtle);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: var(--space-10);
}

.site-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  color: var(--color-text);
  text-decoration: none;
}

.site-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, var(--color-accent), var(--color-primary));
  box-shadow: 0 0 0 2px rgba(248, 241, 230, 0.16), 0 12px 26px rgba(0, 0, 0, 0.6);
}

.site-header__text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-header__site-title {
  font-family: var(--font-serif-display);
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-header__site-subtitle {
  font-family: var(--font-serif-body);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-header__nav-link {
  position: relative;
  font-family: var(--font-serif-body);
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-block: 0.35rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.25rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--duration-normal) var(--ease-standard);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-text);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.site-header__cta-wrapper {
  display: none;
}

.site-header__cta {
  font-size: 0.7rem;
  padding-inline: 1.4rem;
}

/* Mobile toggle */

.site-header__toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(248, 241, 230, 0.3);
  color: var(--color-text);
  background-color: rgba(12, 6, 4, 0.7);
}

.site-header__toggle-box {
  width: 20px;
  height: 16px;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.site-header__toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transform-origin: center;
  transition: transform var(--duration-normal) var(--ease-standard),
    opacity var(--duration-normal) var(--ease-standard),
    top var(--duration-normal) var(--ease-standard),
    bottom var(--duration-normal) var(--ease-standard);
}

.site-header__toggle-line:first-child {
  top: 0;
}

.site-header__toggle-line:last-child {
  bottom: 0;
}

.site-header__toggle-text {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Mobile nav layout */

@media (max-width: 767.98px) {
  .site-header__bar {
    height: auto;
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
  }

  .site-header__nav {
    position: fixed;
    inset-inline: 0;
    top: var(--nav-height);
    padding: var(--space-16) var(--container-padding-x) var(--space-20);
    background: radial-gradient(circle at top, rgba(184, 122, 82, 0.25), transparent 60%),
      var(--color-bg-elevated);
    border-top: 1px solid var(--color-border-subtle);
    transform: translateY(-6px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    flex-direction: column;
    gap: var(--space-16);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .site-header__nav-link {
    font-size: var(--font-size-md);
  }

  .site-header__cta-wrapper {
    display: block;
  }

  .site-header--menu-open .site-header__nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition: opacity var(--duration-normal) var(--ease-standard),
      transform var(--duration-normal) var(--ease-standard),
      visibility 0s linear 0s;
  }

  .site-header--menu-open .site-header__toggle-line:first-child {
    top: 7px;
    transform: rotate(45deg);
  }

  .site-header--menu-open .site-header__toggle-line:last-child {
    bottom: 7px;
    transform: rotate(-45deg);
  }
}

/* Desktop layout */

@media (min-width: 768px) {
  .site-header {
    backdrop-filter: blur(22px);
  }

  .site-header__toggle {
    display: none;
  }

  .site-header__nav {
    position: static;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-header__nav-list {
    gap: var(--space-10);
  }

  .site-header__cta-wrapper {
    display: block;
  }
}

@media (min-width: 1024px) {
  .site-header__site-title {
    font-size: 1.1rem;
  }

  .site-header__site-subtitle {
    font-size: 0.75rem;
  }
}