/* Global Styles */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Navigation */
.navbar {
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar-brand img {
    transition: transform 0.3s ease;
}

.navbar-brand:hover img {
    transform: scale(1.05);
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Banner */
.hero-banner {
    position: relative;
    overflow: hidden;
}

.banner-slide {
    min-height: 500px;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
}

.banner-slide::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 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,106.7C1248,96,1344,96,1392,96L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    background-position: bottom;
}

.banner-slide-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.banner-slide-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

/* Category Cards */
.category-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    height: 100%;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.1);
}

.category-icon {
    width: 80px;
    height: 80px;
    background:#ffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: white;
    transition: all 0.3s ease;
}

.category-card:hover .category-icon {
    transform: rotate(10deg) scale(1.1);
}

.category-card h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Product Cards */
.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    height: 100%;
    position: relative;
}

.product-card:hover {
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
    transform: translateY(-5px);
}

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--danger-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 1;
}

.product-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-body {
    padding: 1.25rem;
}

.product-body h6 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    min-height: 40px;
}

.rating {
    color: #fbbf24;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

/* Supplier Cards */
.supplier-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    height: 100%;
}

.supplier-card:hover {
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
    transform: translateY(-5px);
}

.supplier-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 2rem;
    text-align: center;
    position: relative;
}

.supplier-logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid white;
    background: white;
    object-fit: cover;
}

.verified-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: white;
    color: var(--success-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.supplier-body {
    padding: 1.5rem;
}

.supplier-body h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Feature Boxes */
.feature-box {
    text-align: center;
    padding: 2rem;
    transition: transform 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2rem;
    color: var(--primary-color);
}

.feature-box h5 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background: #1f2937;
}

footer h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

footer ul li {
    margin-bottom: 0.5rem;
}

footer ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer ul li a:hover {
    color: white;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: white;
    margin-right: 0.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.contact-info li {
    color: #9ca3af;
    margin-bottom: 0.5rem;
}

.contact-info li i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    border: none;
    padding: 0.625rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* Product Listing Page */
.sidebar {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    position: sticky;
    top: 100px;
}

.sidebar h5 {
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--light-color);
}

.form-check {
    margin-bottom: 0.75rem;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* Product Detail Page */
.product-gallery {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.main-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.thumbnail-images {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
}

.thumbnail {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.thumbnail:hover,
.thumbnail.active {
    border-color: var(--primary-color);
}

.product-info {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.specification-table {
    width: 100%;
}

.specification-table tr {
    border-bottom: 1px solid var(--light-color);
}

.specification-table td {
    padding: 0.75rem 0;
}

.specification-table td:first-child {
    font-weight: 600;
    width: 40%;
}

/* Contact Page */
.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    height: 100%;
    text-align: center;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.chat-button {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    border: none;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem 0;
}

.auth-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    overflow: hidden;
}

.auth-left {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.auth-right {
    padding: 3rem;
}

/* Dashboard */
.dashboard-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.dashboard-card:hover {
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border-left: 4px solid var(--primary-color);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.sidebar-menu {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    overflow: hidden;
}

.sidebar-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: #333;
    text-decoration: none;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--light-color);
    border-left-color: var(--primary-color);
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .banner-slide {
        min-height: 400px;
    }
    
    .main-image {
        height: 300px;
    }
    
    .auth-left {
        display: none;
    }
    
    .sidebar {
        position: static;
        margin-bottom: 2rem;
    }
}