/* Header-specific styles for Milonga y Naipes */

.header-shell {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  background-color: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  gap: var(--space-4);
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.brand-mark {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent-lavender));
  box-shadow: var(--shadow-subtle);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.brand-chip {
  position: absolute;
  width: 18px;
  height: 24px;
  border-radius: 6px;
  transform: rotate(-12deg);
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.12);
}

.brand-chip--celeste {
  background: var(--color-primary);
  left: 6px;
}

.brand-chip--coral {
  background: var(--color-accent-coral);
  right: 4px;
  top: 4px;
}

.brand-chip--lavender {
  background: var(--color-accent-lavender);
  right: 10px;
  bottom: -2px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 600;
  letter-spacing: var(--ls-tight);
  color: var(--gray-900);
}

.brand-tagline {
  font-size: var(--fs-xs);
  color: var(--gray-500);
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-item--cta {
  margin-left: var(--space-2);
}

.nav-cta {
  font-size: var(--fs-xs);
  padding-inline: 1.25rem;
}

/* Mobile nav toggle */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.6);
  background-color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  gap: 0.25rem;
}

.nav-toggle-bar {
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-700);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Mobile-first: collapsed menu */
.nav-list {
  position: fixed;
  inset-inline: 0;
  top: var(--navbar-height);
  background: #fff;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.16);
  padding: var(--space-4) var(--container-padding-x) var(--space-6);
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  transform: translateY(-110%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

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

.nav-item {
  width: 100%;
}

.nav-item .nav-link,
.nav-item .btn {
  width: 100%;
}

/* Desktop layout */
@media (min-width: 768px) {
  .header-inner {
    gap: var(--space-6);
  }

  .nav-toggle {
    display: none;
  }

  .nav-list {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    background: transparent;
    box-shadow: none;
    border-bottom: 0;
    padding: 0;
    flex-direction: row;
    align-items: center;
  }

  .nav-item {
    width: auto;
  }

  .nav-item .nav-link,
  .nav-item .btn {
    width: auto;
  }
}

/* Open state icon animation */
.nav-list.is-open ~ .nav-toggle .nav-toggle-bar:nth-child(1),
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-list.is-open ~ .nav-toggle .nav-toggle-bar:nth-child(2),
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-list.is-open ~ .nav-toggle .nav-toggle-bar:nth-child(3),
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Safe-area helpers */
@supports (padding: max(0px)) {
  .nav-list {
    padding-inline: max(var(--container-padding-x), env(safe-area-inset-left));
  }
}