/* ============================================
   NAV.CSS — Navbar & Cart Sidebar
   ============================================ */

/* ===== NAVBAR ===== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--white);
  border-bottom: 1px solid var(--gray-border);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 40px;
  z-index: 1000;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-end;
}

/* Logo */
.nav-logo {
  text-align: center;
  text-decoration: none;
  line-height: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.logo-img {
  height: 82px;
  width: auto;
  display: block;
}

/* Nav links */
.nav-link {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--black);
  text-decoration: none;
  letter-spacing: 0.01em;
  position: relative;
  padding-bottom: 3px;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--black);
  transition: width 0.25s ease;
}

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

/* Language toggle */
.lang-btn {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 10px;
  height: 40px;
  border-radius: 20px;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--black);
  transition: border-color 0.2s;
  flex-shrink: 0;
}

.lang-btn:hover {
  border-color: var(--gray-border);
}

.lang-flag {
  width: 22px;
  height: 22px;
  display: block;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: cover;
}

/* Icon buttons */
.nav-icon-btn {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--black);
  position: relative;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  transition: border-color 0.2s;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-icon-btn:hover {
  border-color: var(--gray-border);
}

/* Cart count badge */
.cart-count {
  position: absolute;
  top: 5px;
  right: 5px;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.52rem;
  font-weight: 600;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  line-height: 1;
}

.cart-count.visible {
  opacity: 1;
}

/* ===== CART SIDEBAR ===== */

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 100vw;
  height: 100dvh;
  background: var(--white);
  z-index: 1101;
  transform: translateX(100%);
  transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 32px rgba(0, 0, 0, 0.08);
}

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

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 32px 24px;
  border-bottom: 1px solid var(--gray-border);
  flex-shrink: 0;
}

.cart-header h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
}

.cart-close-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--black);
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.55;
  transition: opacity 0.2s;
  border-radius: 4px;
}

.cart-close-btn:hover {
  opacity: 1;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px;
}

.cart-empty {
  text-align: center;
  color: var(--gray-medium);
  font-size: 0.9rem;
  margin-top: 40px;
  line-height: 1.6;
}

.cart-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-border);
}

.cart-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.cart-item-img {
  width: 78px;
  height: 58px;
  object-fit: cover;
  flex-shrink: 0;
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-item-size {
  font-size: 0.78rem;
  color: var(--gray-medium);
  margin-bottom: 10px;
}

.cart-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-item-price {
  font-size: 0.88rem;
  font-weight: 500;
}

.cart-item-remove {
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--gray-medium);
  text-decoration: underline;
  padding: 0;
  transition: color 0.2s;
}

.cart-item-remove:hover {
  color: var(--black);
}

.cart-footer {
  padding: 24px 32px 32px;
  border-top: 1px solid var(--gray-border);
  flex-shrink: 0;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 20px;
}

.cart-total-label {
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-medium);
}

.cart-total-amount {
  font-size: 1.1rem;
  font-weight: 600;
}

.btn-checkout {
  width: 100%;
  padding: 16px 24px;
  background: var(--black);
  color: var(--white);
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 0.2s;
}

.btn-checkout:hover {
  background: #2c2c2c;
}

/* ===== HAMBURGER BUTTON ===== */

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.hamburger-btn span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  transition: transform 0.22s ease, opacity 0.22s ease;
  transform-origin: center;
}

.hamburger-btn.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ===== MOBILE MENU ===== */

.mobile-menu {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-border);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  padding: 8px 0 16px;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.22s ease, opacity 0.22s ease;
  will-change: transform, opacity;
}

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

.mobile-nav-link {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  color: var(--black);
  text-decoration: none;
  padding: 14px 28px;
  border-bottom: 1px solid var(--gray-border);
  transition: background 0.15s;
}

.mobile-nav-link:last-child {
  border-bottom: none;
}

.mobile-nav-link:hover {
  background: var(--gray-light);
}

.mobile-nav-link.active {
  font-weight: 500;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 900px) {
  .navbar {
    padding: 0 24px;
  }

  .nav-left {
    gap: 18px;
  }
}

@media (max-width: 640px) {
  .navbar {
    padding: 0 16px;
  }

  /* Hide desktop links, show hamburger */
  .nav-link {
    display: none;
  }

  .hamburger-btn {
    display: flex;
  }

  .logo-img {
    height: 52px;
  }

  .lang-code {
    display: none;
  }

  .nav-icon-btn {
    width: 36px;
    height: 36px;
  }

  .cart-sidebar {
    width: 100vw;
  }
}