/* =========================================================================
   BỘ MÃ CSS DỄ CHỈNH SỬA CHO TRANG WEB ENA GREEN CO., LTD
   ========================================================================= */

/* 1. BIẾN MÀU SẮC & PHÔNG CHỮ */
:root {
  --primary: #92400e;       /* Màu hạt điều chín vàng nâu */
  --primary-hover: #78350f; /* Màu nâu đậm */
  --accent: #d97706;        /* Màu hạt điều vàng giòn */
  --secondary: #15803d;     /* Màu xanh lá cây thương hiệu ENA GREEN */
  --dark: #1c1917;          /* Màu chữ tối */
  --light-bg: #f5f5f4;      /* Màu nền trang */
  --white: #ffffff;
  --gray-border: #e7e5e4;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --radius: 16px;           /* Bo góc các thẻ */
  --font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

/* 2. THIẾT LẬP CƠ BẢN */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--light-bg);
  color: var(--dark);
  line-height: 1.6;
  font-size: 15px;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

code {
  background: #fef3c7;
  color: #92400e;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

/* KHUNG CHỨA TRUNG TÂM (CONTAINER) */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* 3. THANH THÔNG BÁO ĐẦU TRANG (TOP BAR) */
.top-bar {
  background: linear-gradient(to right, #14532d, #15803d);
  color: #fef3c7;
  font-size: 12px;
  padding: 8px 0;
  font-weight: 500;
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

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

.top-contacts a {
  color: #fef3c7;
  font-weight: 600;
}

/* 4. THANH HEADER CHÍNH */
.main-header {
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-flex {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  gap: 16px;
  flex-wrap: wrap;
}

/* LOGO */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 28px;
  background: #dcfce7;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.brand-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--secondary);
  display: block;
  line-height: 1.1;
}

.brand-sub {
  font-size: 10px;
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 1px;
}

/* Ô TÌM KIẾM */
.search-box {
  display: flex;
  align-items: center;
  background: var(--light-bg);
  border: 1px solid var(--gray-border);
  border-radius: 30px;
  padding: 4px 12px;
  width: 100%;
  max-width: 400px;
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  padding: 8px;
  width: 100%;
  font-size: 14px;
}

.search-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

/* HÀNH ĐỘNG HEADER */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cart-btn {
  background: #fef3c7;
  color: var(--primary);
  border: 1px solid #fde68a;
  padding: 8px 16px;
  border-radius: 30px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.cart-btn:hover {
  background: #fde68a;
}

.cart-count {
  background: var(--accent);
  color: var(--white);
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

/* DIỀU HƯỚNG DANH MỤC (NAV) */
.category-nav {
  background: #f0fdf4;
  border-top: 1px solid #dcfce7;
  border-bottom: 1px solid #bbf7d0;
  padding: 8px 0;
}

.nav-links {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  white-space: nowrap;
  padding-bottom: 4px;
}

.nav-btn {
  background: transparent;
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 13px;
}

.nav-btn:hover, .nav-btn.active {
  background: var(--secondary);
  color: var(--white);
}

/* 5. NÚT BẤM CƠ BẢN (BUTTONS) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  border: none;
  transition: transform 0.15s ease, background-color 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--white);
}

.btn-secondary:hover {
  background: #166534;
}

.btn-outline {
  background: var(--white);
  border: 1px solid var(--gray-border);
  color: var(--dark);
}

.btn-outline:hover {
  background: #f5f5f4;
}

.full-width {
  width: 100%;
}

/* 6. HERO BANNER */
.hero-section {
  background: linear-gradient(135deg, #f0fdf4 0%, #fffbeb 100%);
  padding: 48px 0;
  border-bottom: 1px solid #bbf7d0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.badge {
  background: var(--secondary);
  color: var(--white);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: inline-block;
  margin-bottom: 12px;
}

.sub-badge {
  color: var(--secondary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: block;
}

.hero-text h1 {
  font-size: 30px;
  font-weight: 800;
  color: #14532d;
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-text p {
  color: #1c1917;
  margin-bottom: 24px;
  font-size: 15px;
}

.hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-badges {
  display: flex;
  gap: 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--secondary);
  flex-wrap: wrap;
}

.hero-image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 2px solid var(--white);
}

/* 7. GIỚI THIỆU CÔNG TY ENA GREEN & ENA GROUP */
.about-section {
  background: var(--white);
  padding: 56px 0;
  border-bottom: 1px solid var(--gray-border);
}

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

.about-header h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-card {
  background: #f8fafc;
  border: 1px solid var(--gray-border);
  padding: 24px;
  border-radius: var(--radius);
}

.about-card.highlight {
  background: #f0fdf4;
  border-color: #bbf7d0;
}

.card-icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.about-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 10px;
}

.about-card ul li {
  font-size: 13px;
  margin-top: 6px;
  color: #475569;
}

/* GIÁ TRỊ CỐT LÕI */
.core-values {
  background: #fffbeb;
  border: 1px solid #fde68a;
  padding: 24px;
  border-radius: var(--radius);
  text-align: center;
}

.core-values h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 16px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

@media (max-width: 600px) {
  .values-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.value-item {
  background: var(--white);
  padding: 12px;
  border-radius: 12px;
  border: 1px solid #fef3c7;
}

.value-item strong {
  display: block;
  color: var(--primary);
  font-size: 14px;
}

.value-item span {
  font-size: 12px;
  color: #78350f;
}

/* 8. DANH SÁCH SẢN PHẨM */
.main-content {
  padding: 48px 16px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.section-header.center {
  text-align: center;
  justify-content: center;
}

.section-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
}

.section-subtitle {
  color: #78350f;
  font-size: 14px;
}

.filter-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.filter-controls select {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--gray-border);
  outline: none;
  background: var(--white);
  font-family: inherit;
}

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

/* THẺ SẢN PHẨM */
.product-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-border);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

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

.product-thumb {
  position: relative;
  height: 210px;
  overflow: hidden;
  background: #f8fafc;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.product-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--secondary);
  color: var(--white);
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
}

.product-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-category {
  font-size: 11px;
  color: var(--secondary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.product-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.35;
}

.product-desc {
  font-size: 13px;
  color: #57534e;
  margin-bottom: 16px;
  flex: 1;
  line-height: 1.4;
}

.product-price-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 12px;
}

.price-current {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
}

.price-old {
  font-size: 13px;
  color: #a8a29e;
  text-decoration: line-through;
}

.product-card-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* 9. NĂNG LỰC & CHỨNG NHẬN */
.capability-section {
  background: #f0fdf4;
  padding: 48px 0;
  border-top: 1px solid #bbf7d0;
  border-bottom: 1px solid #bbf7d0;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

@media (max-width: 800px) {
  .capability-grid {
    grid-template-columns: 1fr;
  }
}

.cap-card {
  background: var(--white);
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  padding: 24px;
}

.cap-card h4 {
  font-size: 16px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 16px;
}

.cert-badges {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cert-item {
  background: #dcfce7;
  color: #14532d;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
}

.cap-list li {
  font-size: 13px;
  margin-bottom: 8px;
  color: #334155;
}

/* 10. KHUNG LIÊN HỆ BÁN SỈ & B2B */
.contact-section {
  background: var(--white);
  padding: 48px 0;
  border-top: 1px solid var(--gray-border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-info h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--secondary);
  margin-bottom: 12px;
}

.company-address-box {
  background: #f8fafc;
  border: 1px solid var(--gray-border);
  padding: 20px;
  border-radius: var(--radius);
  margin-top: 20px;
}

.company-address-box h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--secondary);
}

.company-address-box .sub-text {
  font-size: 12px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-list li {
  margin-bottom: 10px;
  font-size: 14px;
}

.motto-box {
  margin-top: 16px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
}

.contact-card {
  background: #fffbeb;
  border: 1px solid #fde68a;
  padding: 24px;
  border-radius: var(--radius);
}

.contact-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: #451a03;
  margin-bottom: 16px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--gray-border);
  outline: none;
  font-family: inherit;
  font-size: 14px;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 2px rgba(21, 128, 61, 0.15);
}

/* 11. CHÂN TRANG (FOOTER) */
.main-footer {
  background: #1c1917;
  color: #d6d3d1;
  padding: 48px 0 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid #292524;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-grid h4 {
  color: var(--white);
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-grid ul li {
  margin-bottom: 8px;
  font-size: 13px;
}

.footer-grid ul li a:hover {
  color: var(--accent);
}

.footer-bottom {
  background: #0c0a09;
  padding: 16px 0;
  font-size: 12px;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* 12. MODAL VÀ DRAWER */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

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

.modal-box {
  background: var(--white);
  border-radius: var(--radius);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  padding: 24px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
}

.modal-box.wide {
  max-width: 700px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #78716c;
}

/* CART DRAWER */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 150;
  display: none;
}

.cart-overlay.active {
  display: block;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: -400px;
  width: 100%;
  max-width: 380px;
  height: 100%;
  background: var(--white);
  z-index: 160;
  box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
}

.cart-drawer.active {
  right: 0;
}

.cart-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-body {
  padding: 20px;
  flex: 1;
  overflow-y: auto;
}

.cart-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-border);
}

.cart-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: 8px;
}

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

.cart-item-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.cart-item-price {
  font-size: 13px;
  color: var(--primary);
  font-weight: 700;
}

.qty-btn {
  background: var(--light-bg);
  border: 1px solid var(--gray-border);
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
}

.cart-footer {
  padding: 20px;
  border-top: 1px solid var(--gray-border);
  background: var(--light-bg);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cart-total-row {
  display: flex;
  justify-content: space-between;
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 8px;
}

.empty-msg {
  text-align: center;
  color: #78716c;
  margin-top: 40px;
}

.loading-spinner {
  text-align: center;
  padding: 40px;
  color: var(--secondary);
  font-weight: bold;
  grid-column: 1 / -1;
}