/* --- CÀI ĐẶT CHUNG & FONT --- */
body {
    font-family: 'Montserrat', sans-serif; /* Font chữ hiện đại */
    margin: 0;
    line-height: 1.6;
    background-color: #ffffff; /* Nền trắng chủ đạo */
    color: #333;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 500; /* Nét chữ mỏng hơn */
    margin-top: 0;
}

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

img {
    max-width: 100%;
    height: auto;
}

main {
    max-width: 1600px;
    margin: 0 auto;
}

.module-section {
    padding: 3rem 2rem;
    margin: 0 auto;
    text-align: center;
}

.module-section h2 {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 2.5rem;
    text-align: center;
    letter-spacing: 1px;
}

/* --- HEADER MỚI --- */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2.5rem;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.main-header .logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
}
.main-nav ul li a {
    font-size: 0.9rem;
    font-weight: 500;
    color: #555;
    transition: color 0.3s;
    letter-spacing: 0.5px;
}
.main-nav ul li a:hover {
    color: #bfa89e; /* Màu be/nâu nhạt */
}
.header-icons {
    display: flex;
    align-items: center;
    gap: 1.8rem;
    font-size: 1.1rem;
}
.header-icons a {
    color: #333;
    transition: color 0.3s;
}
.header-icons a:hover {
    color: #bfa89e;
}

/* --- NÚT BẤM (BUTTONS) --- */
.btn {
    display: inline-block;
    background-color: #333; /* Nút màu đen */
    color: #fff;
    padding: 0.8rem 2.2rem;
    text-decoration: none;
    border-radius: 5px; /* Bo góc ít */
    margin-top: 10px;
    cursor: pointer;
    border: 2px solid #333;
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}
.btn:hover {
    background-color: #fff;
    color: #333;
}
/* Nút viền */
.btn-outline {
    background-color: transparent;
    color: #333;
    border: 2px solid #333;
}
.btn-outline:hover {
    background-color: #333;
    color: #fff;
}
.btn-full {
    width: 100%;
    box-sizing: border-box; /* Quan trọng */
    padding: 1rem;
}


/* --- 1. HERO BANNER --- */
.hero-banner {
    position: relative;
    text-align: center;
    color: white;
}
.hero-banner img {
    width: 100%;
    height: 75vh; /* Chiều cao 75% màn hình */
    object-fit: cover;
    filter: brightness(0.7); /* Hơi tối ảnh nền */
}
.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}
.hero-content p {
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
}

/* --- 2. DANH MỤC SẢN PHẨM --- */
.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.category-card {
    position: relative;
    overflow: hidden;
}
.category-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.category-card:hover img {
    transform: scale(1.05);
}
.category-title {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background-color: rgba(255, 255, 255, 0.9);
    padding: 0.5rem 1rem;
    font-weight: 500;
    color: #333;
}

/* --- 3. PRODUCT CARD (Tối giản) --- */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.product-card {
    background-color: #fff;
    text-align: left;
}
.product-card a {
    display: block;
    overflow: hidden;
}
.product-card img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.product-card:hover img {
    transform: scale(1.03);
}
.product-info {
    padding: 1rem 0;
    text-align: center;
}
.product-info h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.product-info .price {
    font-size: 1rem;
    font-weight: 700;
    color: #333;
}

/* --- 4. KHỐI CONCEPT --- */
.concept-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    background-color: #f9f9f9;
    margin-top: 3rem;
}
.concept-image img {
    width: 100%;
    height: 600px;
    object-fit: cover;
    display: block;
}
.concept-content {
    padding: 4rem;
    text-align: left;
}
.concept-content h2 {
    font-size: 1.8rem;
    font-weight: 700;
}
.concept-content h3 {
    font-size: 1.1rem;
    font-weight: 400;
    color: #666;
    margin-bottom: 1rem;
}

/* --- 5. KHỐI DỊCH VỤ --- */
.service-block {
    padding: 5rem 2rem;
    text-align: center;
    background-color: #e9e9e9;
    margin-top: 3rem;
}
.service-block h2 {
    font-size: 1.8rem;
}

/* --- FOOTER MỚI --- */
.main-footer {
    background-color: #f9f9f9;
    color: #555;
    padding: 4rem 2.5rem 2rem;
    margin-top: 3rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}
.footer-column h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #333;
    letter-spacing: 0.5px;
}
.footer-column a, .footer-column p {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    transition: color 0.3s;
}
.footer-column a:hover {
    color: #bfa89e;
}
.footer-column p i {
    margin-right: 10px;
    width: 20px;
}
.social-icons a {
    font-size: 1.2rem;
    margin-right: 1rem;
    display: inline-block;
}
.footer-bottom {
    text-align: center;
    font-size: 0.8rem;
    border-top: 1px solid #ddd;
    padding-top: 2rem;
}

/* --- TRANG CHI TIẾT SẢN PHẨM --- */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    text-align: left;
}
.product-images img {
    width: 100%;
}
.product-info-detail h1 {
    font-size: 2rem;
    font-weight: 500;
}
.product-info-detail .price {
    font-size: 1.5rem;
    color: #333;
    font-weight: 700;
    margin: 1rem 0;
}
.quantity-selector {
    margin: 1.5rem 0;
}
.quantity-selector input {
    width: 60px;
    padding: 0.75rem;
    font-size: 1rem;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.product-info-detail .btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

/* --- TRANG GIỎ HÀNG (Thiết kế lại) --- */
.cart-page h1 {
    text-align: center;
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 2.5rem;
}
.cart-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    text-align: left;
}
.cart-table table {
    width: 100%;
    border-collapse: collapse;
}
.cart-table th, .cart-table td {
    border-bottom: 1px solid #eee;
    padding: 1.5rem 0.5rem;
    text-align: left;
    vertical-align: middle;
}
.cart-table th {
    font-size: 0.9rem;
    font-weight: 500;
    color: #888;
    text-transform: uppercase;
}
.cart-item-info {
    display: flex;
    align-items: center;
}
.cart-item-info img {
    width: 90px;
    height: 110px;
    object-fit: cover;
    margin-right: 1rem;
}
.cart-quantity-input {
    width: 60px;
    padding: 0.75rem;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.btn-remove {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: #888;
}
.cart-summary {
    background: #f9f9f9;
    padding: 2rem;
    border-radius: 5px;
}
.cart-summary h3 {
    font-size: 1.2rem;
    font-weight: 500;
    border-bottom: 1px solid #ddd;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}
.cart-summary .summary-row, .cart-summary .total-price {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    font-size: 1rem;
}
.cart-summary .total-price {
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 1.5rem;
}
.coupon-code {
    display: flex;
    margin: 1.5rem 0;
}
.coupon-code input {
    flex-grow: 1;
    border: 1px solid #ccc;
    padding: 0.75rem;
    border-right: none;
}
.coupon-code .btn-outline {
    border-radius: 0 5px 5px 0;
    margin-top: 0;
    white-space: nowrap; /* Chống xuống dòng */
}
.payment-methods label {
    display: block;
    margin-bottom: 0.5rem;
}


/* --- Responsive (Đơn giản) --- */
@media (max-width: 992px) {
    .main-nav {
        display: none; /* Ẩn menu đi trên mobile, cần JS để làm menu burger */
    }
    .concept-block, .cart-layout {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .category-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 576px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .product-detail {
        grid-template-columns: 1fr;
    }
}

/* --- BỔ SUNG CSS CHO CÁC TRANG MỚI --- */

/* --- Banner Tiêu đề trang (Giới thiệu, Tin tức, Liên hệ) --- */
.page-title-banner {
    background-color: #f4f4f4;
    text-align: center;
    padding: 3rem 2rem;
    margin-bottom: 3rem;
}
.page-title-banner h1 {
    font-size: 2.5rem;
    font-weight: 500;
    margin: 0;
}

/* --- Trang Giới thiệu (static-page-content) --- */
.static-page-content {
    max-width: 900px;
    text-align: left;
    margin-left: auto;
    margin-right: auto;
}
.static-page-content h2 {
    text-align: left;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 1rem;
}
.static-page-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 1rem;
}
.content-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 5px;
    margin: 1.5rem 0;
}

/* --- Trang Danh sách Tin tức --- */
.news-list-container {
    max-width: 1000px;
    margin: 0 auto;
}
.news-list-item {
    display: grid;
    grid-template-columns: 1fr 1.5fr; /* Bố cục ảnh bên trái, chữ bên phải */
    gap: 2.5rem;
    margin-bottom: 3rem;
    text-align: left;
    border-bottom: 1px solid #eee;
    padding-bottom: 3rem;
}
.news-list-item:last-child {
    border-bottom: none;
}
.news-image-link img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 5px;
    transition: opacity 0.3s;
}
.news-image-link:hover img {
    opacity: 0.8;
}
.news-content .news-category {
    font-size: 0.8rem;
    font-weight: 700;
    color: #888;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}
.news-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    text-align: left;
    margin-bottom: 1rem;
}
.news-content h2 a:hover {
    color: #bfa89e;
}
.news-content .news-summary {
    color: #555;
    font-size: 0.95rem;
    line-height: 1.7;
}
.btn-readmore {
    font-size: 0.9rem;
    font-weight: 700;
    color: #333;
    text-decoration: none;
    margin-top: 1rem;
    display: inline-block;
}
.btn-readmore:hover {
    color: #bfa89e;
}

/* --- Trang Chi tiết Tin tức --- */
.article-detail-container {
    display: grid;
    grid-template-columns: 3fr 1fr; /* Nội dung 3 phần, tin liên quan 1 phần */
    gap: 3rem;
    max-width: 1200px;
    text-align: left;
}
.article-content h1 {
    font-size: 2.2rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}
.article-content .news-category {
    font-size: 0.9rem;
    font-weight: 700;
    color: #888;
    letter-spacing: 1px;
}
.article-content p {
    font-size: 1rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 1.5rem;
}
.social-share {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}
.social-share strong {
    margin-right: 1rem;
}
.social-share a {
    font-size: 1.2rem;
    margin-right: 1rem;
    color: #555;
}
.social-share a:hover {
    color: #bfa89e;
}

/* Tin liên quan */
.related-news h2 {
    font-size: 1.2rem;
    font-weight: 700;
    text-align: left;
    margin-bottom: 1.5rem;
}
.related-news-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}
.related-news-item img {
    width: 100px;
    height: 70px;
    object-fit: cover;
    border-radius: 5px;
}
.related-news-item a:hover {
    color: #bfa89e;
}

/* --- Trang Liên hệ --- */
.contact-page-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1200px;
    text-align: left;
}
.contact-info h3, .contact-form h3 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}
.contact-info p {
    font-size: 1rem;
    color: #555;
    margin-bottom: 1rem;
}
.contact-info p i {
    margin-right: 10px;
    width: 20px;
    color: #bfa89e;
}
.map-container {
    margin-top: 2rem;
    border-radius: 5px;
    overflow: hidden;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #555;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-family: 'Montserrat', sans-serif;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-sizing: border-box; /* Quan trọng */
}
.form-group textarea {
    resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: #bfa89e;
    outline: none;
}

/* --- Responsive cho các trang mới --- */
@media (max-width: 992px) {
    .article-detail-container, .contact-page-container {
        grid-template-columns: 1fr;
    }
    .related-news {
        margin-top: 3rem;
        border-top: 1px solid #eee;
        padding-top: 2rem;
    }
}
@media (max-width: 768px) {
    .news-list-item {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .news-image-link img {
        height: 200px;
    }
}

/* --- BỔ SUNG CSS CHO KHỐI TIN TỨC TRANG CHỦ --- */

.news-grid-home {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.news-card-home {
    background-color: #fff;
    text-align: left;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.news-card-home:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
}

.news-card-image {
    display: block;
    overflow: hidden;
}

.news-card-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.news-card-home:hover .news-card-image img {
    transform: scale(1.05);
}

.news-card-content {
    padding: 1.5rem;
}

.news-card-category {
    font-size: 0.8rem;
    font-weight: 700;
    color: #888;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.news-card-content h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.news-card-content h3 a:hover {
    color: #bfa89e;
}

.news-card-summary {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6;
}

/* --- BỔ SUNG CSS CHO BỘ LỌC TRANG SẢN PHẨM --- */

.category-filters {
    text-align: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
    padding-bottom: 1.5rem;
}

.filter-btn {
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
    margin: 0 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    font-family: 'Montserrat', sans-serif;
    color: #555;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
}

.filter-btn:hover {
    background-color: #f4f4f4;
}

/* Định dạng cho nút đang được chọn */
.filter-btn.active {
    background-color: #333;
    color: #fff;
}

/* --- BỔ SUNG CSS CĂN CHỈNH GIỎ HÀNG (Dán vào cuối file style.css) --- */

/* Căn lề trái cho tiêu đề cột "Sản phẩm" (đã đúng) */
.cart-table th:first-child {
    text-align: left;
}

/* Căn lề PHẢI cho các tiêu đề cột số */
.cart-table th:nth-child(2), /* Đơn giá */
.cart-table th:nth-child(4)  /* Thành tiền */ {
    text-align: right;
}

/* Căn lề GIỮA cho tiêu đề cột số lượng và xóa */
.cart-table th:nth-child(3), /* Số lượng */
.cart-table th:nth-child(5)  /* Xóa */ {
    text-align: center;
}

/* Căn lề PHẢI cho các ô dữ liệu giá */
.cart-table td:nth-child(2), /* Ô Đơn giá */
.cart-table td:nth-child(4)  /* Ô Thành tiền */ {
    text-align: right;
}

/* Căn lề GIỮA cho ô số lượng và ô xóa */
.cart-table td:nth-child(3), /* Ô Số lượng */
.cart-table td:nth-child(5)  /* Ô Xóa */ {
    text-align: center;
}

/* Đảm bảo ô input số lượng cũng ở giữa */
.cart-quantity-input {
    margin: 0 auto;
}

/* --- BỔ SUNG CSS CHO MÔ TẢ SẢN PHẨM --- */

.product-info .product-summary {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.6;
    margin-top: 0.5rem;
    margin-bottom: 0.75rem;
    /* Giữ cho text ở giữa */
    text-align: center;
    /* Giới hạn 2 dòng */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.7rem; /* (0.9rem * 1.6 line-height * 2 lines) - Cần điều chỉnh nếu font-size/line-height thay đổi */
}

/* Căn lề lại cho tên và giá */
.product-info h3 {
    margin-bottom: 0;
}
.product-info .price {
    margin-top: 0.5rem;
}

/* --- BỔ SUNG CSS CHO SUMMARY TRANG CHI TIẾT SẢN PHẨM --- */

.product-summary-detail {
    font-size: 1.05rem; /* Hơi to hơn text thường */
    font-weight: 500; /* Hơi đậm (semi-bold) */
    color: #444;
    line-height: 1.7;
    margin-top: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid #eee; /* Tách biệt với mô tả chi tiết */
    padding-bottom: 2rem;
}

/* Định dạng cho phần mô tả chi tiết (đã chuyển thành div) */
#product-desc p,
#product-desc ul {
    font-size: 1rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 1.5rem;
}
#product-desc ul {
    padding-left: 20px;
}
#product-desc li {
    margin-bottom: 0.5rem;
}