/* ===== CSS Variables & Reset ===== */
:root {
  --primary: #1a1a2e;
  --primary-light: #16213e;
  --accent: #e94560;
  --accent-hover: #c73e54;
  --gold: #f5a623;
  --bg: #f8f9fa;
  --white: #ffffff;
  --text: #2d3436;
  --text-light: #636e72;
  --border: #e0e0e0;
  --shadow: 0 2px 15px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }
ul { list-style: none; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 46, 0.95);
  backdrop-filter: blur(10px);
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.5px;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover { color: var(--white); }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

.nav-links a:hover::after { width: 100%; }

.nav-cart {
  position: relative;
  background: var(--accent);
  color: var(--white);
  padding: 8px 18px;
  border-radius: 25px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.nav-cart:hover { background: var(--accent-hover); transform: scale(1.05); }

.cart-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--gold);
  color: var(--primary);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ===== Hero Section ===== */
.hero {
  margin-top: 70px;
  min-height: 85vh;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 5%;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(233,69,96,0.1) 0%, transparent 50%);
  animation: heroGlow 8s ease-in-out infinite;
}

@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(5%, 5%); }
}

.hero-content { position: relative; z-index: 2; }

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 20px;
  animation: fadeInUp 1s ease;
  line-height: 1.1;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto 40px;
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-btn {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: 16px 40px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: var(--transition);
  animation: fadeInUp 1s ease 0.4s both;
}

.hero-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(233,69,96,0.4);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Section Common ===== */
.section {
  padding: 80px 5%;
}

.section-title {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 15px;
  color: var(--primary);
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.05rem;
  margin-bottom: 50px;
}

/* ===== Featured Carousel ===== */
.carousel-section {
  background: var(--white);
}

.carousel-wrapper {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-card {
  min-width: 100%;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 40px;
  justify-content: center;
}

.carousel-card img {
  width: 400px;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.carousel-info {
  max-width: 400px;
}

.carousel-info h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--primary);
}

.carousel-info .price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 15px;
}

.carousel-info p {
  color: var(--text-light);
  margin-bottom: 25px;
  line-height: 1.8;
}

.carousel-info .btn {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 12px 30px;
  border-radius: 25px;
  font-weight: 600;
  transition: var(--transition);
}

.carousel-info .btn:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  transition: var(--transition);
  z-index: 10;
}

.carousel-btn:hover {
  background: var(--accent);
  color: var(--white);
}

.carousel-btn.prev { left: 20px; }
.carousel-btn.next { right: 20px; }

/* ===== Categories ===== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.category-card.active {
  border: 2px solid var(--accent);
  background: rgba(233,69,96,0.04);
}

.category-card.active .category-name {
  color: var(--accent);
}

.category-emoji {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.category-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--primary);
}

/* ===== Product Grid ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 25px;
  max-width: 1400px;
  margin: 0 auto;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.product-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: var(--accent);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  z-index: 2;
}

.product-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: var(--transition);
}

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

.product-img-wrapper {
  overflow: hidden;
  position: relative;
}

.product-details {
  padding: 20px;
}

.product-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-category {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-price {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
}

.product-price .original {
  font-size: 0.9rem;
  color: var(--text-light);
  text-decoration: line-through;
  margin-left: 8px;
  font-weight: 400;
}

/* ===== Trust Badges ===== */
.trust-section {
  background: var(--white);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.trust-card {
  text-align: center;
  padding: 30px 20px;
}

.trust-icon {
  font-size: 3rem;
  margin-bottom: 15px;
}

.trust-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary);
}

.trust-card p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== Footer ===== */
.footer {
  background: var(--primary);
  color: rgba(255,255,255,0.8);
  padding: 60px 5% 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto 40px;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col a:hover { color: var(--accent); }

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

/* ===== Product Detail Page ===== */
.detail-container {
  margin-top: 70px;
  padding: 60px 5%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.detail-img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.detail-info h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 15px;
}

.detail-info .price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 20px;
}

.detail-info .desc {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 30px;
  font-size: 1.05rem;
}

.detail-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn-cart {
  background: var(--primary);
  color: var(--white);
  padding: 15px 35px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}

.btn-cart:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-buy {
  background: var(--accent);
  color: var(--white);
  padding: 15px 35px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}

.btn-buy:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ===== Cart Page ===== */
.cart-container {
  margin-top: 70px;
  padding: 60px 5%;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.cart-container h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 30px;
  color: var(--primary);
}

.cart-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-light);
}

.cart-empty .emoji { font-size: 4rem; margin-bottom: 20px; }

.cart-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--white);
  padding: 20px;
  border-radius: var(--radius);
  margin-bottom: 15px;
  box-shadow: var(--shadow);
}

.cart-item img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
}

.cart-item-info { flex: 1; }
.cart-item-info h4 { font-size: 1rem; font-weight: 600; margin-bottom: 5px; }
.cart-item-info .item-price { color: var(--accent); font-weight: 700; }

.cart-qty {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cart-qty button {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.cart-qty button:hover { background: var(--accent); color: var(--white); }

.cart-qty span { font-weight: 700; min-width: 20px; text-align: center; }

.cart-remove {
  background: none;
  color: var(--text-light);
  font-size: 1.5rem;
  transition: var(--transition);
}

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

.cart-summary {
  background: var(--white);
  padding: 30px;
  border-radius: var(--radius);
  margin-top: 30px;
  box-shadow: var(--shadow);
}

.cart-summary .total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
  font-weight: 800;
}

.cart-summary .total span:last-child { color: var(--accent); }

.btn-checkout {
  width: 100%;
  background: var(--accent);
  color: var(--white);
  padding: 16px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: var(--transition);
}

.btn-checkout:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ===== Checkout / Email Verification ===== */
.checkout-container {
  margin-top: 70px;
  padding: 60px 5%;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.checkout-container h1 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 30px;
  color: var(--primary);
  text-align: center;
}

.verify-box, .payment-box {
  background: var(--white);
  padding: 40px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.verify-box h3, .payment-box h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.form-group input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent);
}

.btn-send-code, .btn-verify {
  width: 100%;
  background: var(--primary);
  color: var(--white);
  padding: 14px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
  margin-top: 10px;
}

.btn-send-code:hover, .btn-verify:hover {
  background: var(--accent);
}

.btn-send-code:disabled {
  background: var(--text-light);
  cursor: not-allowed;
}

.verify-msg {
  margin-top: 15px;
  padding: 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  text-align: center;
}

.verify-msg.success { background: #d4edda; color: #155724; }
.verify-msg.error { background: #f8d7da; color: #721c24; }

/* ===== Payment Options ===== */
.payment-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

.payment-option {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.payment-option:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.payment-option.selected {
  border-color: var(--accent);
  background: rgba(233,69,96,0.05);
}

.payment-icon { font-size: 2.5rem; margin-bottom: 10px; }
.payment-name { font-weight: 700; font-size: 1rem; color: var(--primary); }

.btn-pay {
  width: 100%;
  background: var(--accent);
  color: var(--white);
  padding: 16px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: var(--transition);
  margin-top: 30px;
}

.btn-pay:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* ===== Legal Pages ===== */
.legal-container {
  margin-top: 70px;
  padding: 60px 5%;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.legal-container h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}

.legal-container .updated {
  color: var(--text-light);
  margin-bottom: 40px;
  font-size: 0.9rem;
}

.legal-container h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin: 30px 0 15px;
}

.legal-container p, .legal-container li {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.legal-container ul {
  padding-left: 20px;
  list-style: disc;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 15px;
  background: none;
  font-size: 1.5rem;
  color: var(--text-light);
  transition: var(--transition);
}

.modal-close:hover { color: var(--accent); }

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--primary);
  color: var(--white);
  padding: 15px 25px;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: var(--shadow-hover);
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition);
  z-index: 3000;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  
  .carousel-card {
    flex-direction: column;
    text-align: center;
  }
  
  .carousel-card img {
    width: 280px;
    height: 280px;
  }
  
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .cart-item {
    flex-wrap: wrap;
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
  }
  
  .payment-options {
    grid-template-columns: 1fr;
  }
}