:root {
    --primary-color: #2C3E50;
    --secondary-color: #E67E22;
    --accent-color: #27AE60;
    --background-color: #F8F9FA;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #E0E0E0;
    --hover-color: #3498DB;
    --danger-color: #E74C3C;
    --success-color: #27AE60;
    --warning-color: #F39C12;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.2);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Noto Serif SC', 'Songti SC', serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

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

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
    transition: var(--transition);
}

input, textarea, select {
    font-family: inherit;
    outline: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.1);
}

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

.header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 0;
    font-size: 14px;
}

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

.header-main {
    padding: 20px 0;
    background-color: white;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
    font-family: var(--font-serif);
}

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

.search-box {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 12px 50px 12px 20px;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    font-size: 16px;
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--secondary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 500;
}

.search-box button:hover {
    background-color: var(--primary-color);
}

.header-actions {
    display: flex;
    gap: 30px;
    align-items: center;
}

.header-action {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    color: var(--text-color);
    position: relative;
}

.header-action i {
    font-size: 24px;
}

.header-action:hover {
    color: var(--secondary-color);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--danger-color);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
}

.nav-menu {
    background-color: white;
    border-top: 1px solid var(--border-color);
}

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

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list a {
    display: block;
    padding: 15px 0;
    font-weight: 500;
    color: var(--text-color);
    position: relative;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--secondary-color);
}

.nav-list a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--text-light);
    font-size: 14px;
}

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

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495E 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></svg>');
    background-size: 200px 200px;
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-family: var(--font-serif);
    line-height: 1.3;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: #D35400;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.hero-image {
    flex: 1;
    text-align: center;
}

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

.categories-nav {
    background-color: white;
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 20px;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 15px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.category-item:hover {
    background-color: var(--background-color);
    transform: translateY(-3px);
}

.category-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--secondary-color), var(--warning-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
}

.category-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-color);
    text-align: center;
}

.section {
    padding: 60px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    font-family: var(--font-serif);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--secondary-color);
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    margin-top: 15px;
}

.view-all {
    color: var(--secondary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
}

.view-all:hover {
    color: var(--primary-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

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

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

.product-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background-color: var(--background-color);
}

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

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

.product-badges {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.badge {
    padding: 4px 10px;
    font-size: 12px;
    font-weight: bold;
    border-radius: 3px;
    color: white;
}

.badge-new {
    background-color: var(--accent-color);
}

.badge-hot {
    background-color: var(--danger-color);
}

.badge-recommend {
    background-color: var(--secondary-color);
}

.product-actions {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-actions {
    opacity: 1;
}

.product-action-btn {
    width: 36px;
    height: 36px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    color: var(--text-color);
    font-size: 16px;
}

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

.product-info {
    padding: 20px;
}

.product-category {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.product-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 3px;
    color: var(--warning-color);
    font-size: 13px;
}

.product-sales {
    font-size: 12px;
    color: var(--text-light);
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.price-current {
    font-size: 24px;
    font-weight: bold;
    color: var(--danger-color);
}

.price-original {
    font-size: 14px;
    color: var(--text-light);
    text-decoration: line-through;
}

.product-styles {
    display: flex;
    gap: 5px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.style-tag {
    padding: 3px 8px;
    font-size: 11px;
    background-color: var(--background-color);
    border-radius: 3px;
    color: var(--text-light);
}

.style-tag.nordic {
    background-color: #E8F4FD;
    color: #3498DB;
}

.style-tag.japanese {
    background-color: #FDEBD0;
    color: #E67E22;
}

.style-tag.chinese {
    background-color: #FADBD8;
    color: #E74C3C;
}

.style-tag.american {
    background-color: #D5F5E3;
    color: #27AE60;
}

.featured-section {
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    color: white;
}

.featured-section .section-title {
    color: white;
}

.featured-section .section-title::after {
    background-color: white;
}

.style-section {
    background-color: white;
}

.style-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.style-card {
    position: relative;
    height: 300px;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.style-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.style-card:hover img {
    transform: scale(1.1);
}

.style-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 30px 20px 20px;
    color: white;
}

.style-card-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 8px;
}

.style-card-desc {
    font-size: 14px;
    opacity: 0.9;
}

.designers-section {
    background: linear-gradient(135deg, #11998E 0%, #38EF7D 100%);
    color: white;
}

.designers-section .section-title {
    color: white;
}

.designers-section .section-title::after {
    background-color: white;
}

.designers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.designer-card {
    background-color: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    color: white;
    transition: var(--transition);
}

.designer-card:hover {
    background-color: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}

.designer-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 20px;
    overflow: hidden;
    border: 4px solid rgba(255,255,255,0.3);
}

.designer-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.designer-name {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 8px;
}

.designer-title {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 15px;
}

.designer-desc {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
}

.health-section {
    background-color: white;
}

.health-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.health-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
}

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

.health-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.health-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.health-content {
    padding: 20px;
}

.health-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.health-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.health-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.health-date {
    font-size: 12px;
    color: var(--text-light);
}

.health-tag {
    padding: 4px 10px;
    background-color: var(--accent-color);
    color: white;
    font-size: 12px;
    border-radius: 3px;
}

.brands-section {
    background-color: var(--background-color);
}

.brands-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.brand-item {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}

.brand-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.brand-item img {
    max-width: 100%;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
}

.brand-item:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

.newsletter {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495E 100%);
    color: white;
    padding: 80px 0;
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter h2 {
    font-size: 36px;
    margin-bottom: 15px;
    font-family: var(--font-serif);
}

.newsletter p {
    font-size: 16px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    border: none;
    font-size: 16px;
}

.newsletter-form button {
    padding: 15px 30px;
    background-color: var(--secondary-color);
    color: white;
    border-radius: var(--border-radius);
    font-weight: bold;
}

.newsletter-form button:hover {
    background-color: var(--warning-color);
}

.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 0 20px;
}

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

.footer-about h3 {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 15px;
}

.footer-about p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--secondary-color);
}

.footer-column h4 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    font-size: 14px;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-column a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 20px;
}

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

.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495E 100%);
    color: white;
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 15px;
    font-family: var(--font-serif);
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

.breadcrumb {
    padding: 20px 0;
    background-color: white;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.breadcrumb-list a {
    color: var(--text-light);
}

.breadcrumb-list a:hover {
    color: var(--secondary-color);
}

.breadcrumb-separator {
    color: var(--text-light);
}

.breadcrumb-current {
    color: var(--text-color);
    font-weight: 500;
}

.filter-bar {
    background-color: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.filter-group:last-child {
    border-bottom: none;
}

.filter-label {
    font-weight: 500;
    min-width: 80px;
    color: var(--text-color);
}

.filter-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-option {
    padding: 6px 15px;
    background-color: var(--background-color);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

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

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination button {
    padding: 10px 15px;
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color);
    transition: var(--transition);
}

.pagination button:hover:not(:disabled) {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.pagination button.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0,0,0,0.5);
    z-index: 9999;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background-color: white;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

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

.modal-header h3 {
    font-size: 20px;
    font-weight: bold;
}

.modal-close {
    width: 30px;
    height: 30px;
    background-color: var(--background-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background-color: var(--danger-color);
    color: white;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 15px 25px;
    background-color: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    animation: slideIn 0.3s ease;
}

.toast.success {
    background-color: var(--success-color);
}

.toast.error {
    background-color: var(--danger-color);
}

.toast.warning {
    background-color: var(--warning-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-error {
    color: var(--danger-color);
    font-size: 12px;
    margin-top: 5px;
}

.form-success {
    color: var(--success-color);
    font-size: 12px;
    margin-top: 5px;
}

.checkbox-group,
.radio-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-group input,
.radio-group input {
    width: auto;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 30px;
}

.tab {
    padding: 15px 30px;
    background-color: transparent;
    color: var(--text-color);
    font-weight: 500;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.tab:hover {
    color: var(--secondary-color);
}

.tab.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-info {
    background-color: #D6EAF8;
    color: #2471A3;
    border: 1px solid #3498DB;
}

.alert-success {
    background-color: #D5F5E3;
    color: #1E8449;
    border: 1px solid #27AE60;
}

.alert-warning {
    background-color: #FCF3CF;
    color: #9A7D0A;
    border: 1px solid #F39C12;
}

.alert-danger {
    background-color: #FADBD8;
    color: #B03A2E;
    border: 1px solid #E74C3C;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 80px;
    color: var(--border-color);
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 24px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    min-width: 200px;
    display: none;
    z-index: 1000;
}

.dropdown.show .dropdown-menu {
    display: block;
}

.dropdown-item {
    padding: 12px 20px;
    display: block;
    color: var(--text-color);
    transition: var(--transition);
    cursor: pointer;
}

.dropdown-item:hover {
    background-color: var(--background-color);
    color: var(--secondary-color);
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 5px 0;
}