/* ============================================
   HEADER & NAVIGATION - AbiYarn
   ============================================ */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #ffe4e6;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

/* Logo */
.logo a { display: flex; align-items: center; }
.logo-img {
  height: 64px;
  width: 64px;
  object-fit: contain;
}

/* Desktop Nav */
.nav { display: flex; gap: 1.75rem; }
.nav a {
  color: var(--gray-text);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s;
  position: relative;
  padding-bottom: 2px;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--rose);
  border-radius: 2px;
  transition: width 0.3s;
}
.nav a:hover,
.nav a.active { color: var(--rose); }
.nav a.active::after,
.nav a:hover::after { width: 100%; }

/* Header Right */
.header-right { display: flex; align-items: center; gap: 0.75rem; }

/* Cart Button */
.cart-btn {
  position: relative;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}
.cart-btn:hover { background: var(--rose-light); }
.cart-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--rose);
  color: var(--white);
  font-size: 0.7rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gray-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.5);
}
.mobile-nav.open { display: block; }
.mobile-nav-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 100%;
  background: var(--white);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
}
.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.5rem;
}
.mobile-logo { height: 52px; width: 52px; object-fit: contain; }
.mobile-close {
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: var(--gray-text);
  line-height: 1;
}
.mobile-close:hover { color: var(--rose); }
.mobile-nav-links { display: flex; flex-direction: column; gap: 1.5rem; }
.mobile-nav-links a {
  font-size: 1.2rem;
  color: var(--gray-text);
  font-weight: 500;
  transition: color 0.2s;
}
.mobile-nav-links a:hover,
.mobile-nav-links a.active { color: var(--rose); }