/* Header styles for Kitvoryx */

.kv-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--color-bg);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

.kv-header__notice {
  font-size: var(--font-size-sm);
}

.kv-header__notice-text {
  margin-bottom: 0;
}

.kv-header__notice-link {
  font-weight: 500;
}

.kv-header__main {
  background-color: var(--color-surface);
}

.kv-header__inner {
  padding-block: var(--space-8);
}

.kv-header__brand {
  display: flex;
  align-items: center;
}

.kv-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}

.kv-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #e1f2eb, #2f7b5b);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-md);
  flex-shrink: 0;
}

.kv-header__logo-mark .fa-utensils {
  font-size: 0.95rem;
}

.kv-header__logo-text {
  display: flex;
  flex-direction: column;
}

.kv-header__logo-name {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--color-text);
}

.kv-header__logo-tagline {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.kv-header__nav {
  margin-left: auto;
}

.kv-header__nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.kv-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
  padding-block: 0.25rem;
}

.kv-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-base);
}

.kv-header__nav-link:hover::after,
.kv-header__nav-link:focus-visible::after {
  width: 100%;
}

.kv-header__nav-link--cta {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.kv-header__nav-link--cta::after {
  display: none;
}

.kv-header__nav-link--cta:hover,
.kv-header__nav-link--cta:focus-visible {
  background-color: var(--color-primary-strong);
}

.kv-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text);
}

.kv-header__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.kv-header__toggle-bar {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

.kv-header--menu-open .kv-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.kv-header--menu-open .kv-header__toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}

.kv-header--menu-open .kv-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.kv-header__backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  z-index: 1;
}

.kv-header--menu-open .kv-header__backdrop {
  opacity: 1;
  pointer-events: auto;
}

/* Mobile layout */

@media (max-width: 768px) {
  .kv-header__inner {
    gap: var(--space-8);
  }

  .kv-header__toggle {
    display: inline-flex;
  }

  .kv-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 64px;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
    z-index: 2;
  }

  .kv-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-8) var(--space-8) var(--space-12);
    gap: var(--space-4);
  }

  .kv-header__nav-link {
    width: 100%;
    padding-block: 0.35rem;
  }

  .kv-header__nav-link--cta {
    width: auto;
  }

  .kv-header--menu-open .kv-header__nav {
    max-height: 320px;
  }
}

/* Medium+ screens */

@media (min-width: 769px) {
  .kv-header__backdrop {
    display: none;
  }
}