/* ============================================
   Shopee Affiliate Website - Main Stylesheet
   ============================================ */

:root {
  --primary: #EE4D2D;
  --primary-dark: #D73211;
  --primary-light: #FFF0ED;
  --secondary: #FFB916;
  --accent: #00BFA5;
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Sarabun', 'Prompt', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--gray-900);
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }

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

/* =========== HEADER =========== */
.header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--gray-100);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--gray-900);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
}

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

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

.nav a {
  color: var(--gray-600);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
}

.nav a:hover, .nav a.active {
  color: var(--primary);
  background: var(--primary-light);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  cursor: pointer;
  color: var(--gray-700);
  padding: 4px;
}

/* =========== HERO SECTION =========== */
.hero {
  background: linear-gradient(135deg, #FFF0ED 0%, #FFF8E1 50%, #E0F7FA 100%);
  padding: 60px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(238,77,45,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 42px;
  margin-bottom: 16px;
  color: var(--gray-900);
}

.hero-content h1 span { color: var(--primary); }

.hero-content p {
  font-size: 18px;
  color: var(--gray-600);
  margin-bottom: 24px;
  line-height: 1.8;
}

.hero-badges {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  box-shadow: var(--shadow-sm);
}

.hero-image {
  text-align: center;
}

.hero-image img {
  max-width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  box-shadow: 0 4px 14px rgba(238,77,45,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(238,77,45,0.45);
  color: var(--white);
}

.btn-secondary {
  background: var(--white);
  color: var(--gray-700);
  border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

/* =========== SECTION HEADERS =========== */
.section {
  padding: 60px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 32px;
  margin-bottom: 8px;
}

.section-header p {
  color: var(--gray-500);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

.section-header .subtitle {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* =========== CATEGORY CARDS =========== */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
  cursor: pointer;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.category-icon {
  font-size: 36px;
  margin-bottom: 10px;
  display: block;
}

.category-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-700);
}

.category-card span {
  font-size: 12px;
  color: var(--gray-400);
}

/* =========== PRODUCT CARDS =========== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  z-index: 2;
}

.product-badge.hot { background: linear-gradient(135deg, #FF6B35, #FF4444); }
.product-badge.sale { background: linear-gradient(135deg, #00BFA5, #009688); }

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  background: var(--gray-100);
}

.product-image-placeholder {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--gray-400);
}

.product-info {
  padding: 20px;
}

.product-category {
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}

.product-info h3 {
  font-size: 18px;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-info h3 a {
  color: var(--gray-900);
}

.product-info h3 a:hover {
  color: var(--primary);
}

.product-price {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 4px;
}

.product-price .original {
  font-size: 14px;
  font-weight: 400;
  color: var(--gray-400);
  text-decoration: line-through;
  margin-left: 8px;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--secondary);
}

.product-rating .count {
  color: var(--gray-400);
  font-size: 13px;
  margin-left: 4px;
}

.product-excerpt {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.6;
}

.product-actions {
  display: flex;
  gap: 8px;
}

.btn-affiliate {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-affiliate:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(238,77,45,0.35);
  color: var(--white);
}

/* =========== DEALS SECTION =========== */
.deals-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.deal-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}

.deal-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.deal-image {
  width: 160px;
  min-height: 160px;
  flex-shrink: 0;
  object-fit: cover;
  background: var(--gray-100);
}

.deal-image-placeholder {
  width: 160px;
  min-height: 160px;
  flex-shrink: 0;
  background: linear-gradient(135deg, #FFF8E1, #FFF0ED);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.deal-info {
  padding: 16px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.deal-info .deal-tag {
  display: inline-block;
  background: var(--secondary);
  color: var(--gray-900);
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 6px;
  width: fit-content;
}

.deal-info h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.deal-info .deal-price {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: auto;
}

.deal-info .deal-meta {
  font-size: 12px;
  color: var(--gray-400);
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

/* =========== FEATURES SECTION =========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
  display: block;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* =========== REVIEW PAGE =========== */
.review-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
  padding: 40px 0;
}

.review-header-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.review-header .breadcrumb {
  font-size: 14px;
  color: var(--gray-400);
  margin-bottom: 12px;
}

.review-header .breadcrumb a {
  color: var(--gray-400);
}

.review-header h1 {
  font-size: 36px;
  margin-bottom: 12px;
}

.review-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--gray-500);
  align-items: center;
}

.review-body {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
}

.review-body h2 {
  font-size: 24px;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-100);
}

.review-body h3 {
  font-size: 20px;
  margin-top: 32px;
  margin-bottom: 12px;
}

.review-body p {
  margin-bottom: 16px;
  font-size: 16px;
  color: var(--gray-700);
  line-height: 1.9;
}

.review-body ul, .review-body ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.review-body li {
  margin-bottom: 8px;
  font-size: 16px;
  line-height: 1.8;
}

.review-body .pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 24px 0;
}

.pros-box, .cons-box {
  padding: 20px;
  border-radius: var(--radius);
}

.pros-box {
  background: #E8F5E9;
  border: 1px solid #C8E6C9;
}

.cons-box {
  background: #FFEBEE;
  border: 1px solid #FFCDD2;
}

.pros-box h3, .cons-box h3 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 18px;
}

.pros-box li { color: #2E7D32; }
.cons-box li { color: #C62828; }

.review-cta-box {
  background: linear-gradient(135deg, var(--primary-light), #FFF8E1);
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  margin: 32px 0;
}

.review-cta-box h3 {
  margin-top: 0;
  font-size: 22px;
  color: var(--gray-900);
}

.review-cta-box p {
  margin-bottom: 20px;
  font-size: 15px;
  color: var(--gray-600);
}

.review-cta-box .btn {
  font-size: 18px;
  padding: 14px 36px;
}

/* =========== NEWSLETTER =========== */
.newsletter {
  background: linear-gradient(135deg, var(--gray-900), #1a1a2e);
  padding: 60px 0;
  color: var(--white);
  text-align: center;
}

.newsletter h2 {
  color: var(--white);
  font-size: 28px;
  margin-bottom: 8px;
}

.newsletter p {
  color: var(--gray-400);
  margin-bottom: 24px;
}

.newsletter-form {
  display: flex;
  max-width: 500px;
  margin: 0 auto;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 16px;
  outline: none;
  font-family: inherit;
}

.newsletter-form .btn {
  padding: 14px 28px;
  flex-shrink: 0;
}

/* =========== FOOTER =========== */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 40px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.footer-brand h3 {
  color: var(--white);
  font-size: 20px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
}

.footer h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}

.footer-disclosure {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 16px;
  line-height: 1.6;
}

/* =========== PAGE HEADER =========== */
.page-header {
  background: var(--white);
  padding: 40px 0;
  border-bottom: 1px solid var(--gray-100);
}

.page-header h1 {
  font-size: 36px;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--gray-500);
  font-size: 16px;
}

/* =========== BREADCRUMB =========== */
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 14px;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .current { color: var(--gray-700); }

/* =========== CONTENT PAGES =========== */
.content-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}

.content-page h2 {
  font-size: 24px;
  margin-top: 36px;
  margin-bottom: 12px;
}

.content-page p {
  margin-bottom: 16px;
  line-height: 1.9;
  color: var(--gray-700);
}

/* =========== BACK TO TOP =========== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  border: none;
  font-size: 22px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* =========== AFFILIATE DISCLOSURE BANNER =========== */
.disclosure-banner {
  background: #FFF8E1;
  border-bottom: 1px solid #FFE082;
  padding: 8px 0;
  text-align: center;
  font-size: 13px;
  color: var(--gray-600);
}

.disclosure-banner strong { color: var(--gray-800); }

/* =========== RESPONSIVE =========== */
@media (max-width: 1024px) {
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); padding: 16px; box-shadow: var(--shadow-lg); border-top: 1px solid var(--gray-100); }
  .mobile-menu-btn { display: block; }
  
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content h1 { font-size: 32px; }
  .hero-badges { justify-content: center; }
  
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: 1fr; }
  .deals-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  
  .deal-card { flex-direction: column; }
  .deal-image, .deal-image-placeholder { width: 100%; height: 180px; }
  
  .pros-cons { grid-template-columns: 1fr; }
  
  .review-header h1 { font-size: 28px; }
  .review-body { padding: 0 16px; }
  
  .newsletter-form { flex-direction: column; }
  
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  
  .section-header h2 { font-size: 26px; }
}

@media (max-width: 480px) {
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-content h1 { font-size: 26px; }
  .product-image-placeholder { height: 160px; }
}