@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #cccccc;
  --gray-400: #999999;
  --gray-500: #666666;
  --gray-600: #444444;
  --gray-700: #222222;
  --dark: #000000;
  --text: #111111;
  --text-light: #555555;
  --text-muted: #888888;
  --bg: #f8f8f8;
  --bg-alt: #ffffff;
  --border: #222222;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.14);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.18);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ========== TOP BAR ========== */
.top-bar {
  background: var(--black);
  color: var(--white);
  font-size: 0.7rem;
  padding: 8px 0;
  text-align: center;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 600;
}

/* ========== NAVBAR ========== */
.navbar {
  background: var(--white);
  border-bottom: 3px solid var(--black);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.5px;
}

.navbar-brand .brand-icon {
  width: 36px;
  height: 36px;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 800;
  border: 2px solid var(--black);
}

.nav-center {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-center a {
  padding: 8px 18px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-light);
  transition: all var(--transition);
  position: relative;
}

.nav-center a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 3px;
  background: var(--black);
  transition: transform var(--transition);
}

.nav-center a:hover, .nav-center a.active {
  color: var(--dark);
  background: var(--bg);
}
.nav-center a:hover::after, .nav-center a.active::after {
  transform: translateX(-50%) scaleX(1);
}

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

.nav-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  position: relative;
}

.nav-icon-btn:hover {
  background: var(--bg);
  color: var(--dark);
}

.cart-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  background: var(--black);
  color: var(--white);
  font-size: 0.6rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 2px solid var(--white);
}

.avatar-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  transition: all var(--transition);
  overflow: hidden;
}

.avatar-btn:hover { border-color: var(--black); }

.avatar-btn img { width: 100%; height: 100%; object-fit: cover; }

/* ========== DROPDOWN ========== */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--white);
  border: 3px solid var(--black);
  min-width: 200px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition);
  z-index: 100;
}

.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a, .dropdown-menu button {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background var(--transition);
  border: none;
  background: none;
  width: 100%;
  cursor: pointer;
  text-align: left;
}

.dropdown-menu a:hover, .dropdown-menu button:hover {
  background: var(--bg);
}

.dropdown-menu .divider {
  height: 1px;
  background: var(--border);
  margin: 6px 8px;
}

.dropdown-menu .dropdown-label {
  padding: 8px 14px 4px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
}

/* ========== MOBILE TOGGLE ========== */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--text);
}

/* ========== HERO CAROUSEL ========== */
.hero-carousel {
  position: relative;
  height: 92vh;
  min-height: 600px;
  max-height: 900px;
  overflow: hidden;
  background: var(--black);
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease;
  z-index: 0;
}

.hero-slide.active {
  opacity: 1;
  z-index: 1;
}

.hero-slide-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.1) brightness(0.85);
}

.hero-slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0.2) 100%);
  display: flex;
  align-items: center;
}

.hero-slide-content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  position: relative;
  z-index: 2;
}

.hero-slide-content .hero-tag {
  display: inline-block;
  background: var(--white);
  color: var(--black);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: 6px 14px;
  margin-bottom: 24px;
  border: 3px solid var(--black);
}

.hero-slide-content h1 {
  font-size: 4rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1.05;
  margin-bottom: 16px;
  letter-spacing: -2px;
  text-transform: uppercase;
  max-width: 600px;
}

.hero-slide-content p {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  max-width: 480px;
  line-height: 1.6;
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-slide-content .hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  background: var(--white);
  color: var(--black);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  border: 3px solid var(--black);
  transition: all 0.15s ease;
  cursor: pointer;
}

.hero-slide-content .hero-cta:hover {
  background: var(--black);
  color: var(--white);
  text-decoration: none;
}

.hero-slide-content .hero-cta-outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
  margin-left: 12px;
}

.hero-slide-content .hero-cta-outline:hover {
  background: var(--white);
  color: var(--black);
}

.carousel-dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.carousel-dot {
  width: 14px;
  height: 14px;
  background: rgba(255,255,255,0.3);
  border: 2px solid var(--white);
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.carousel-dot.active {
  background: var(--white);
  border-color: var(--black);
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 52px;
  height: 52px;
  background: var(--white);
  border: 3px solid var(--black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
  font-size: 1.2rem;
  color: var(--black);
  font-weight: 700;
  padding: 0;
}

.carousel-arrow:hover {
  background: var(--black);
  color: var(--white);
}

.carousel-arrow.prev { left: 24px; }
.carousel-arrow.next { right: 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 3px solid var(--black);
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  text-decoration: none;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--black);
  color: var(--white);
}
.btn-primary:hover { background: var(--white); color: var(--black); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--black);
  border-color: var(--black);
}
.btn-secondary:hover { background: var(--black); color: var(--white); }

.btn-outline {
  background: transparent;
  border: 3px solid var(--black);
  color: var(--black);
}
.btn-outline:hover { background: var(--black); color: var(--white); }

.btn-danger { background: var(--black); color: var(--white); border-color: var(--black); }
.btn-danger:hover { background: var(--white); color: var(--black); }

.btn-sm { padding: 8px 18px; font-size: 0.75rem; }
.btn-lg { padding: 14px 34px; font-size: 0.9rem; }

/* ========== CATEGORY TILES ========== */
.category-tiles {
  max-width: 1280px;
  margin: -40px auto 0;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
  z-index: 10;
}

.category-tile {
  background: var(--white);
  padding: 24px 16px;
  text-align: center;
  border: 3px solid var(--black);
  cursor: pointer;
  transition: all 0.15s ease;
}

.category-tile:hover {
  background: var(--black);
}

.category-tile:hover h4,
.category-tile:hover p {
  color: var(--white);
}

.category-tile .tile-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
}

.category-tile:hover .tile-icon { color: var(--white); }

.category-tile h4 {
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--black);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: color 0.15s ease;
}

.category-tile p {
  font-size: 0.7rem;
  color: var(--gray-500);
  font-weight: 500;
  transition: color 0.15s ease;
}

/* ========== SECTION ========== */
.section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -1px;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--black);
  margin-top: 6px;
}

.section-header .subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== PRODUCT GRID ========== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--white);
  border: 2px solid var(--black);
  transition: all 0.15s ease;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  background: var(--black);
}

.product-card:hover .product-card-body h3,
.product-card:hover .product-card-body .product-desc,
.product-card:hover .product-card-category,
.product-card:hover .product-price {
  color: var(--white);
}

.product-card:hover .product-stock { border: 1px solid var(--white); color: var(--black); background: var(--white); }

.product-card-image-wrap {
  position: relative;
  padding-top: 100%;
  overflow: hidden;
  background: var(--gray-100);
  border-bottom: 2px solid var(--black);
}

.product-card-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-card-image { transform: scale(1.05); }

.card-img-dots {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 5px;
  z-index: 3;
}
.card-img-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  border: 1px solid var(--black);
  transition: background 0.2s;
}
.card-img-dots span.active { background: var(--black); }

.product-card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  z-index: 2;
  border: 2px solid var(--black);
}

.tag-new { background: var(--white); color: var(--black); }
.tag-sale { background: var(--black); color: var(--white); }

.product-card-body {
  padding: 18px 20px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card-category {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 6px;
}

.product-card-body h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.product-card-body .product-desc {
  font-size: 0.8rem;
  color: var(--text-light);
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.product-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.product-price {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--dark);
}

.product-stock {
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 50px;
  font-weight: 500;
}

.in-stock { background: var(--white); color: var(--black); border: 1px solid var(--black); }
.out-of-stock { background: var(--black); color: var(--white); }
.low-stock { background: var(--white); color: var(--black); border: 1px solid var(--black); }

/* ========== PRODUCT DETAIL ========== */
.product-detail-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px 64px;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.product-detail-image-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--bg);
}

.product-detail-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.product-detail-info h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.product-detail-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 16px;
}

.product-detail-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--black);
  margin-bottom: 20px;
}

.product-detail-desc {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 28px;
}

.product-meta {
  display: flex;
  gap: 32px;
  margin-bottom: 28px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.product-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-light);
}

.product-detail-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ========== CART ========== */
.cart-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px;
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.cart-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--white);
  padding: 20px;
  border: 2px solid var(--black);
  margin-bottom: 12px;
  transition: all 0.15s ease;
}

.cart-item:hover { background: var(--gray-100); }

.cart-item-image {
  width: 90px;
  height: 90px;
  border: 2px solid var(--black);
  object-fit: cover;
  flex-shrink: 0;
}

.cart-item-info { flex: 1; min-width: 0; }
.cart-item-info h3 { font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.cart-item-info .item-price { color: var(--text-muted); font-size: 0.85rem; }

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  padding: 4px;
  border-radius: var(--radius);
}

.qty-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  color: var(--text);
  font-weight: 600;
}

.qty-btn:hover { background: var(--black); color: var(--white); }
.qty-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.qty-btn:disabled:hover { background: #fff; color: var(--text); }

.qty-display {
  font-weight: 600;
  font-size: 0.9rem;
  min-width: 28px;
  text-align: center;
}

.cart-item-total {
  font-weight: 700;
  font-size: 1.05rem;
  min-width: 80px;
  text-align: right;
  color: var(--dark);
}

.cart-item-remove {
  padding: 8px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition);
  border-radius: var(--radius-sm);
}
.cart-item-remove:hover { color: var(--black); background: var(--gray-100); }

.cart-summary-card {
  background: var(--white);
  padding: 28px;
  border: 3px solid var(--black);
  position: sticky;
  top: 88px;
}

.cart-summary-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-size: 0.9rem;
  color: var(--text-light);
}

.summary-row.total {
  border-top: 2px solid var(--border);
  margin-top: 8px;
  padding-top: 16px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--dark);
}

/* ========== PASSWORD TOGGLE ========== */
.password-wrapper {
  position: relative;
}

.password-wrapper .form-input {
  padding-right: 44px;
}

.password-toggle {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease;
  line-height: 0;
}

.password-toggle:hover {
  color: var(--black);
}

/* ========== FORMS ========== */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-weight: 600; font-size: 0.85rem; margin-bottom: 6px; color: var(--text); }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: all var(--transition);
  background: #fff;
  font-family: inherit;
  color: var(--text);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.06);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-input.error { border-color: var(--black); }
.form-error { font-size: 0.8rem; color: var(--black); margin-top: 4px; }

/* ========== AUTH ========== */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  background: linear-gradient(135deg, var(--bg) 0%, #fff 100%);
}

.auth-card {
  background: var(--white);
  padding: 40px;
  width: 100%;
  max-width: 440px;
  border: 4px solid var(--black);
}

.auth-card h1 { font-size: 1.5rem; font-weight: 800; text-align: center; margin-bottom: 4px; }
.auth-card .subtitle { text-align: center; color: var(--text-muted); font-size: 0.9rem; margin-bottom: 28px; }
.auth-card .form-footer { text-align: center; margin-top: 20px; font-size: 0.88rem; color: var(--text-muted); }
.auth-card .form-footer a { color: var(--black); font-weight: 700; text-decoration: underline; }

/* ========== DASHBOARD ========== */
.dashboard {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.dashboard-header h1 { font-size: 1.75rem; font-weight: 800; }
.dashboard-header p { color: var(--text-muted); }

.dashboard-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

.dashboard-sidebar {
  background: var(--white);
  padding: 16px;
  border: 3px solid var(--black);
  position: sticky;
  top: 88px;
}

.dash-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-light);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}

.dash-nav-item:hover { background: var(--bg); color: var(--text); }
.dash-nav-item.active { background: var(--gray-100); color: var(--black); font-weight: 700; }

.dashboard-content {
  background: var(--white);
  padding: 32px;
  border: 3px solid var(--black);
  min-height: 400px;
}

.dash-section { display: none; }
.dash-section.active { display: block; }

.dash-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.profile-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.profile-field label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.profile-field p {
  font-size: 1rem;
  font-weight: 500;
}

/* ========== SELLER DASHBOARD ========== */
.seller-tabs-wrap {
  display: flex;
  gap: 4px;
  border-bottom: 3px solid var(--black);
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.seller-tab-btn {
  padding: 12px 24px;
  font-weight: 700;
  font-size: 0.85rem;
  border: 3px solid var(--black);
  border-bottom: none;
  cursor: pointer;
  font-family: inherit;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.15s ease;
}
.seller-tab-btn.active {
  background: var(--black);
  color: var(--white);
}
.seller-tab-btn:not(.active) {
  background: var(--white);
  color: var(--black);
}
.seller-tab-btn:hover:not(.active) {
  background: var(--gray-100);
}

.seller-product-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
  padding: 24px;
  background: var(--gray-100);
  border: 2px solid var(--black);
}

.seller-product-form .form-group.full { grid-column: 1 / -1; }

.seller-product-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--gray-100);
  border: 2px solid var(--black);
  margin-bottom: 12px;
}

.seller-product-card img {
  width: 60px;
  height: 60px;
  border: 2px solid var(--black);
  object-fit: cover;
}

.seller-product-card .spc-info { flex: 1; }
.seller-product-card .spc-info h4 { font-size: 0.9rem; font-weight: 600; }
.seller-product-card .spc-info p { font-size: 0.8rem; color: var(--text-muted); }

/* ========== CHECKOUT ========== */
.checkout-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px;
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 40px;
  align-items: start;
}

.checkout-form-card {
  background: var(--white);
  padding: 32px;
  border: 3px solid var(--black);
}

.checkout-summary-card {
  background: var(--white);
  padding: 28px;
  border: 3px solid var(--black);
  position: sticky;
  top: 88px;
}

.checkout-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.9rem;
}

.checkout-total {
  font-weight: 700;
  font-size: 1.2rem;
  padding-top: 16px;
  margin-top: 16px;
  border-top: 2px solid var(--border);
  display: flex;
  justify-content: space-between;
}

/* ========== CONFIRMATION ========== */
.confirmation-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.confirmation-card {
  background: var(--white);
  padding: 48px;
  text-align: center;
  max-width: 520px;
  border: 4px solid var(--black);
}

.confirmation-icon {
  width: 80px;
  height: 80px;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--white);
}

.confirmation-card h1 { font-size: 1.75rem; font-weight: 800; margin-bottom: 8px; }
.confirmation-card p { color: var(--text-muted); margin-bottom: 8px; }

.order-number-badge {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin: 20px 0;
  padding: 16px 24px;
  background: var(--bg);
  border-radius: var(--radius);
  display: inline-block;
}

/* ========== ORDERS ========== */
.orders-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px;
}

.order-card {
  background: var(--white);
  border: 2px solid var(--black);
  padding: 24px;
  margin-bottom: 16px;
}

.order-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.order-id { font-weight: 600; }

.order-status {
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
}

.order-status.confirmed { background: var(--white); color: var(--black); border: 1px solid var(--black); }
.order-status.shipped { background: var(--black); color: var(--white); }
.order-status.delivered { background: var(--black); color: var(--white); }
.order-status.cancelled { background: var(--white); color: var(--black); border: 1px solid var(--black); }

.order-product {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.88rem;
}

.order-total {
  text-align: right;
  font-weight: 700;
  font-size: 1.05rem;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  margin-top: 12px;
}

/* ========== ORDER FEE BREAKDOWN ========== */
.order-fee-breakdown {
  margin: 20px 0;
  padding: 16px;
  background: var(--gray-100);
  border: 2px solid var(--black);
  text-align: left;
}

.fee-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.88rem;
  color: var(--text-light);
}

.fee-row.total {
  border-top: 2px solid var(--black);
  margin-top: 8px;
  padding-top: 12px;
  font-weight: 700;
  color: var(--dark);
  font-size: 1rem;
}

.order-shipping-address {
  margin: 16px 0;
  padding: 12px 16px;
  background: var(--gray-100);
  border: 2px solid var(--black);
  font-size: 0.88rem;
  line-height: 1.6;
  text-align: left;
}

.order-fee-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.order-ship-address {
  margin-top: 8px;
  padding: 8px 12px;
  background: var(--gray-100);
  border: 2px solid var(--black);
  font-size: 0.82rem;
  line-height: 1.5;
}

/* ========== ORDER TRACKING ========== */
.tracking-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 40px 24px;
}

.tracking-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 32px;
  align-items: start;
}

.tracking-main {
  min-width: 0;
}

.tracking-card {
  background: var(--white);
  border: 3px solid var(--black);
  padding: 28px;
  margin-bottom: 20px;
}

.tracking-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.tracking-header h2 {
  font-size: 1.25rem;
  font-weight: 800;
}

.tracking-timeline {
  position: relative;
  padding-left: 28px;
}

.tracking-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--black);
}

.timeline-item {
  position: relative;
  padding-bottom: 24px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -24px;
  top: 4px;
  width: 14px;
  height: 14px;
  background: var(--gray-300);
  border: 2px solid var(--black);
}

.timeline-dot.active {
  background: var(--black);
}

.timeline-content {
  padding-left: 4px;
}

.timeline-status {
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: capitalize;
}

.timeline-note {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 2px;
}

.timeline-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.tracking-product {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.88rem;
}

.tracking-fee-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.tracking-total {
  text-align: right;
  font-weight: 700;
  font-size: 1.05rem;
  padding-top: 12px;
  border-top: 2px solid var(--black);
  margin-top: 8px;
}

.tracking-map {
  width: 100%;
  height: 200px;
  margin-top: 12px;
  border: 2px solid var(--black);
  background: var(--gray-100);
}

/* ========== ADMIN ========== */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.admin-table th, .admin-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 2px solid var(--black);
}

.admin-table th {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  background: var(--gray-100);
}

.admin-table tbody tr:hover {
  background: var(--gray-100);
}

.order-status.admin {
  background: var(--white);
  color: var(--black);
  border: 1px solid var(--black);
}

.admin-order-card {
  background: var(--white);
  border: 2px solid var(--black);
  padding: 20px;
  margin-bottom: 12px;
}

.admin-product-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--gray-100);
  border: 2px solid var(--black);
  margin-bottom: 12px;
}

.admin-product-card img {
  width: 60px;
  height: 60px;
  border: 2px solid var(--black);
  object-fit: cover;
}

.admin-product-card .apc-info { flex: 1; }
.admin-product-card .apc-info h4 { font-size: 0.9rem; font-weight: 600; }
.admin-product-card .apc-info p { font-size: 0.8rem; color: var(--text-muted); }

/* ========== TOAST ========== */
.toast-container {
  position: fixed;
  top: 88px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius);
  color: #fff;
  font-weight: 500;
  font-size: 0.88rem;
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
  max-width: 400px;
  backdrop-filter: blur(10px);
}

.toast-success { background: var(--black); }
.toast-error { background: var(--black); }
.toast-info { background: var(--black); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ========== LOADING ========== */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px;
  color: var(--text-muted);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--black);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-bottom: 12px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ========== EMPTY STATE ========== */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-muted);
}

.empty-state svg { width: 56px; height: 56px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { font-size: 1.15rem; color: var(--text); margin-bottom: 8px; }
.empty-state p { margin-bottom: 20px; }

/* ========== FOOTER ========== */
.footer {
  background: var(--dark);
  color: #fff;
  padding: 60px 24px 32px;
  margin-top: 64px;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: #fff;
}

.footer p, .footer a {
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
  line-height: 2;
  transition: color var(--transition);
}
.footer a:hover { color: #fff; }

.footer-brand { font-size: 1.25rem; font-weight: 800; margin-bottom: 12px; color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 40px;
  padding-top: 24px;
  text-align: center;
  color: rgba(255,255,255,0.3);
  font-size: 0.8rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .category-tiles { grid-template-columns: repeat(3, 1fr); }
  .product-detail-grid { grid-template-columns: 1fr; gap: 32px; }
  .checkout-grid, .cart-layout { grid-template-columns: 1fr; }
  .tracking-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-sidebar { display: flex; gap: 4px; overflow-x: auto; position: static; padding: 8px; }
  .dash-nav-item { white-space: nowrap; flex-shrink: 0; }
}

@media (max-width: 768px) {
  .mobile-toggle { display: block; }
  .nav-center { display: none; }
  .nav-center.open { display: flex; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg); z-index: 100; }
  .nav-center a { width: 100%; padding: 12px 16px; }
  .nav-center a::after { display: none; }

  .hero-slide-content h1 { font-size: 2.5rem; }
  .hero-slide-content p { font-size: 0.9rem; }
  .hero-carousel { height: 75vh; min-height: 450px; }
  .carousel-arrow { width: 40px; height: 40px; font-size: 1rem; }
  .carousel-arrow.prev { left: 12px; }
  .carousel-arrow.next { right: 12px; }
  .category-tiles { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: -24px; }
  .product-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 16px; }
  .section { padding: 40px 16px; }
  .section-header { flex-direction: column; gap: 12px; align-items: flex-start; }
  .cart-item { flex-wrap: wrap; }
  .cart-item-image { width: 70px; height: 70px; }
  .cart-item-total { min-width: auto; }
  .auth-card { padding: 24px; }
  .profile-info { grid-template-columns: 1fr; }
  .seller-product-form { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .product-card-body { padding: 14px; }
  .product-card-body h3 { font-size: 0.85rem; }
  .product-price { font-size: 1rem; }
  .top-bar { font-size: 0.65rem; padding: 4px 0; }
}

@media (max-width: 480px) {
  .hero-slide-content h1 { font-size: 1.8rem; letter-spacing: -1px; }
  .hero-slide-content p { font-size: 0.82rem; }
  .hero-carousel { height: 70vh; min-height: 400px; }
  .carousel-dots { bottom: 24px; }
  .carousel-dot { width: 12px; height: 12px; }
  .category-tiles { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .navbar-inner { padding: 0 16px; height: 64px; }
  .navbar-brand { font-size: 1.15rem; }
  .navbar-brand .brand-icon { width: 30px; height: 30px; font-size: 0.9rem; }
  .dashboard-content { padding: 20px; }
}