/* ============================================
   NAVIGATION STYLES
   Top nav bar — desktop, tablet, and mobile
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: box-shadow var(--transition);
}

/* backdrop-filter moved to ::before so it doesn't create a containing block
   that traps position:fixed children (the mobile menu overlay) */
.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: -1;
}

.nav--scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* --- Logo --- */
.nav__logo {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
  flex-shrink: 0;
}

.nav__logo span {
  color: var(--color-navy);
  font-weight: 600;
}

/* --- Desktop links --- */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* --- Tablet: tighten the gap so links fit at 768px --- */
@media (min-width: 768px) and (max-width: 1023px) {
  .nav__links {
    gap: var(--space-md);
  }
}

/* --- Shop dropdown --- */
.nav__item--has-dropdown {
  position: relative;
}

.nav__item--has-dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: -12px;
  right: -12px;
  height: 20px;
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  min-width: 148px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
  z-index: 101;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
}

.nav__dropdown::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
}

.nav__item--has-dropdown:hover .nav__dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-link {
  display: block;
  padding: 0.75rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}

.nav__dropdown-link:hover {
  color: var(--color-navy);
  background: var(--color-bg-soft);
}

.nav__chevron {
  display: inline-block;
  margin-left: 3px;
  vertical-align: middle;
  transition: transform 0.18s ease;
  opacity: 0.5;
}

.nav__item--has-dropdown:hover .nav__chevron {
  transform: rotate(180deg);
  opacity: 1;
}

.nav__link {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-navy);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-navy);
  transition: width var(--transition);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* --- Mobile hamburger button --- */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  /* 44×44 tap target */
  width: 44px;
  height: 44px;
}

.nav__toggle-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
  flex-shrink: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================
   CART BUTTON (nav__cart) + CART PANEL
   Shared across all pages that have the cart
   ============================================ */

.nav__cart {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__cart-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  transition: color var(--transition);
  padding: 0;
}

.nav__cart-btn:hover {
  color: var(--color-text);
}

.nav__cart-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-navy);
  color: white;
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
  opacity: 0;
  transform: scale(0.5);
  transition: opacity var(--transition), transform var(--transition);
}

.nav__cart-badge--visible {
  opacity: 1;
  transform: scale(1);
}

/* Cart overlay (dim background) */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 35, 0.25);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.cart-overlay--open {
  opacity: 1;
  pointer-events: all;
}

/* Cart slide-in panel */
.cart-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 420px;
  max-width: 100vw;
  background: var(--color-bg);
  border-left: 1px solid var(--color-border);
  z-index: 301;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.cart-panel--open {
  transform: translateX(0);
}

.cart-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.cart-panel__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.04em;
  font-weight: 400;
}

.cart-panel__count {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-left: 0.5rem;
}

.cart-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 1.25rem;
  line-height: 1;
  transition: color var(--transition);
  padding: 0.25rem;
}

.cart-close:hover {
  color: var(--color-text);
}

.cart-panel__items {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem 1.75rem;
}

.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  gap: var(--space-sm);
}

.cart-empty p {
  max-width: 22ch;
  font-size: 0.9375rem;
}

.cart-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: 1rem;
  align-items: start;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.cart-item__image {
  width: 80px;
  height: 56px;
  object-fit: cover;
  display: block;
}

.cart-item__info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.cart-item__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  font-weight: 400;
  line-height: 1;
}

.cart-item__meta {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  max-width: none;
  line-height: 1.4;
}

.cart-item__qty {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.cart-item__qty-btn {
  width: 24px;
  height: 24px;
  border: 1px solid var(--color-border);
  background: none;
  font-size: 0.875rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: border-color var(--transition);
}

.cart-item__qty-btn:hover {
  border-color: var(--color-text);
}

.cart-item__qty-val {
  font-size: 0.8125rem;
  min-width: 18px;
  text-align: center;
}

.cart-item__price {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
}

.cart-item__remove {
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  margin-top: 0.4rem;
  font-family: var(--font-body);
  transition: color var(--transition);
}

.cart-item__remove:hover {
  color: var(--color-text);
}

.cart-panel__footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 1.75rem;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.8125rem;
}

.cart-total-row--subtotal,
.cart-total-row--shipping {
  color: var(--color-text-muted);
}

.cart-total-row--total {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-top: 0.25rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.cart-checkout-btn {
  width: 100%;
  margin-top: 0.25rem;
}

.cart-panel__note {
  font-size: 0.6875rem;
  text-align: center;
  color: var(--color-text-muted);
  max-width: none;
  line-height: 1.5;
}


/* ============================================
   MOBILE — 767px and below
   ============================================ */
@media (max-width: 767px) {
  .nav__toggle {
    display: flex;
  }

  /* Full-screen overlay: slides down + fades in */
  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 150;
    background-color: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-md);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    overflow-y: auto;
  }

  .nav__links--open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0);
  }

  /* Larger link font + 44px minimum tap height */
  .nav__links > li {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .nav__link {
    font-size: 1.0625rem;
    letter-spacing: 0.12em;
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0 1rem;
  }

  .nav__link::after {
    display: none;
  }

  /* Sub-links for Shop: always visible as a horizontal row */
  .nav__dropdown {
    position: static;
    transform: none;
    opacity: 1;
    pointer-events: all;
    box-shadow: none;
    border: none;
    background: none;
    min-width: 0;
    display: flex;
    gap: 1.5rem;
    margin-top: 0.25rem;
    justify-content: center;
  }

  .nav__dropdown::before {
    display: none;
  }

  .nav__dropdown-link {
    font-size: 0.75rem;
    padding: 0.5rem 0.25rem;
    color: var(--color-text-muted);
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav__chevron {
    display: none;
  }

  /* Prevent dropdown hover on mobile */
  .nav__item--has-dropdown:hover .nav__dropdown {
    opacity: 1;
    transform: none;
  }

  /* Nav cart: tighter gap between cart icon and hamburger */
  .nav__cart {
    gap: var(--space-sm);
  }

  /* Cart panel — full width on mobile */
  .cart-panel {
    width: 100%;
    border-left: none;
  }

  .cart-panel__header {
    padding: 1.25rem 1rem;
  }

  .cart-panel__items {
    padding: 1rem;
  }

  .cart-panel__footer {
    padding: 1rem;
    padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
  }

  /* Cart item quantity buttons — 44px tap target */
  .cart-item__qty-btn {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }

  .cart-item__qty-val {
    min-width: 28px;
  }

  /* Tighten cart item grid on narrow screens */
  .cart-item {
    grid-template-columns: 72px 1fr auto;
    gap: 0.75rem;
  }
}