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

:root {
  /* 라이트 모드 색상 */
  --bg-color: #f9f9f9;
  --text-color: #333;
  --header-bg: #2c3e50;
  --header-text: white;
  --card-bg: white;
  --card-shadow: rgba(0, 0, 0, 0.1);
  --card-hover-shadow: rgba(0, 0, 0, 0.15);
  --banner-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --footer-bg: #2c3e50;
  --footer-text: white;
  --cart-modal-bg: white;
  --cart-item-bg: #f8f9fa;
  --border-color: #ecf0f1;
  --muted-text: #7f8c8d;
  --muted-text-light: #95a5a6;
  --muted-text-lighter: #bdc3c7;
}

[data-theme='dark'] {
  /* 다크 모드 색상 */
  --bg-color: #1a1a1a;
  --text-color: #e0e0e0;
  --header-bg: #2d3748;
  --header-text: #e2e8f0;
  --card-bg: #2d3748;
  --card-shadow: rgba(0, 0, 0, 0.3);
  --card-hover-shadow: rgba(0, 0, 0, 0.4);
  --banner-bg: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
  --footer-bg: #2d3748;
  --footer-text: #e2e8f0;
  --cart-modal-bg: #2d3748;
  --cart-item-bg: #4a5568;
  --border-color: #4a5568;
  --muted-text: #a0aec0;
  --muted-text-light: #718096;
  --muted-text-lighter: #a0aec0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--bg-color);
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 헤더 */
.header {
  background-color: var(--header-bg);
  color: var(--header-text);
  padding: 1rem 0;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  text-decoration: none;
  color: var(--header-text);
}

.nav {
  display: flex;
  gap: 2rem;
}

.nav-link {
  color: var(--header-text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: #3498db;
}

.header-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.theme-toggle {
  background: none;
  border: 2px solid var(--header-text);
  color: var(--header-text);
  padding: 0.5rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background-color: var(--header-text);
  color: var(--header-bg);
}

.cart-btn {
  background-color: #e74c3c;
  color: white;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}

.cart-btn:hover {
  background-color: #c0392b;
}

/* 배너 */
.banner {
  background: var(--banner-bg);
  color: white;
  padding: 6rem 2rem;
  text-align: center;
}

.banner-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.banner-content p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.cta-btn {
  background-color: #f39c12;
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.cta-btn:hover {
  background-color: #e67e22;
}

/* 섹션 제목 */
.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--text-color);
}

/* 상품 섹션 */
.products {
  padding: 4rem 2rem;
  background-color: var(--bg-color);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

/* 상품 카드 */
.product-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 6px var(--card-shadow);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 8px 12px var(--card-hover-shadow);
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.product-card > * {
  padding: 0 1.5rem;
}

.product-card > :first-of-type {
  padding-top: 0;
}

.product-name {
  font-size: 1.2rem;
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.product-category {
  font-size: 0.85rem;
  color: var(--muted-text);
  margin-bottom: 0.5rem;
}

.product-description {
  font-size: 0.9rem;
  color: var(--muted-text-light);
  margin-bottom: 1rem;
}

.product-price {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.price {
  font-size: 1.5rem;
  font-weight: bold;
  color: #e74c3c;
}

.original-price {
  font-size: 0.9rem;
  color: var(--muted-text-lighter);
  text-decoration: line-through;
}

.add-to-cart-btn {
  background-color: #3498db;
  color: white;
  border: none;
  padding: 0.8rem;
  font-size: 1rem;
  border-radius: 5px;
  cursor: pointer;
  margin-bottom: 1.5rem;
  transition: background-color 0.3s ease;
}

.add-to-cart-btn:hover {
  background-color: #2980b9;
}

/* 장바구니 모달 */
.cart-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  overflow-y: auto;
}

.cart-modal.active {
  display: flex;
  justify-content: flex-end;
}

.cart-content {
  background-color: var(--cart-modal-bg);
  width: 100%;
  max-width: 400px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.2);
}

.cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--cart-item-bg);
}

.cart-header h2 {
  font-size: 1.5rem;
  color: var(--text-color);
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: #7f8c8d;
}

.close-btn:hover {
  color: #2c3e50;
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.cart-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid #ecf0f1;
  background-color: #f8f9fa;
  border-radius: 5px;
  margin-bottom: 0.5rem;
}

.cart-item-info {
  flex: 1;
}

.cart-item-name {
  font-weight: bold;
  color: var(--text-color);
  margin-bottom: 0.3rem;
}

.cart-item-price {
  color: #e74c3c;
  font-size: 1rem;
}

.cart-item-remove {
  background-color: #e74c3c;
  color: white;
  border: none;
  padding: 0.4rem 0.8rem;
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: background-color 0.3s ease;
}

.cart-item-remove:hover {
  background-color: #c0392b;
}

.empty-cart {
  text-align: center;
  padding: 2rem;
  color: #7f8c8d;
}

.cart-footer {
  border-top: 2px solid #ecf0f1;
  padding: 1.5rem;
  background-color: #f8f9fa;
}

.cart-total {
  font-size: 1.2rem;
  font-weight: bold;
  color: #2c3e50;
  margin-bottom: 1rem;
  text-align: right;
}

.cart-total span {
  color: #e74c3c;
}

.checkout-btn {
  width: 100%;
  background-color: #27ae60;
  color: white;
  border: none;
  padding: 1rem;
  font-size: 1rem;
  border-radius: 5px;
  cursor: pointer;
  margin-bottom: 0.5rem;
  transition: background-color 0.3s ease;
}

.checkout-btn:hover {
  background-color: #229954;
}

.continue-btn {
  width: 100%;
  background-color: #95a5a6;
  color: white;
  border: none;
  padding: 0.8rem;
  font-size: 0.9rem;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.continue-btn:hover {
  background-color: #7f8c8d;
}

/* 푸터 */
.footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
}

.footer p {
  margin: 0.5rem 0;
}

/* 제휴문의 섹션 */
.contact {
  padding: 4rem 2rem;
  background-color: var(--bg-color);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info h3 {
  font-size: 1.8rem;
  color: var(--text-color);
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--muted-text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.contact-details p {
  color: var(--text-color);
  margin: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-form {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 10px;
  box-shadow: 0 4px 6px var(--card-shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid var(--border-color);
  border-radius: 5px;
  font-size: 1rem;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3498db;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  background-color: #27ae60;
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1rem;
  border-radius: 5px;
  cursor: pointer;
  width: 100%;
  transition: background-color 0.3s ease;
}

.submit-btn:hover {
  background-color: #229954;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
  .header .container {
    flex-direction: column;
    gap: 1rem;
  }

  .nav {
    gap: 1rem;
  }

  .banner-content h1 {
    font-size: 2rem;
  }

  .products-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
  }

  .cart-content {
    max-width: 100%;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contact-form {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .banner-content h1 {
    font-size: 1.5rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .nav {
    gap: 0.5rem;
    font-size: 0.9rem;
  }
}