/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

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

/* Header */
header {
    background-color: #2c3e50;
    color: white;
    padding: 1.5rem 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Ad Containers */
.ad-container {
    background-color: #fff;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.ad-container.top-ad {
    margin-top: 0;
}

.ad-banner {
    padding: 1rem;
    background-color: #f0f0f0;
    text-align: center;
    border-radius: 4px;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.product-card {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

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

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

.product-info {
    padding: 1rem;
}

.product-title {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: #333;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    margin-bottom: 1rem;
}

.current-price {
    font-size: 1.2rem;
    font-weight: bold;
    color: #e74c3c;
}

.original-price {
    font-size: 0.9rem;
    text-decoration: line-through;
    color: #999;
    margin-left: 0.5rem;
}

.buy-now-btn {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.buy-now-btn:hover {
    background-color: #2980b9;
}

.product-source {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: #7f8c8d;
    background-color: #f0f0f0;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
}

.no-products {
    text-align: center;
    grid-column: 1 / -1;
    padding: 2rem;
    color: #7f8c8d;
}

/* Footer */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
}

/* Login Page */
.login-container {
    max-width: 400px;
    margin: 5rem auto;
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.login-btn {
    width: 100%;
    padding: 0.8rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-btn:hover {
    background-color: #2980b9;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 0.8rem;
    margin-bottom: 1.5rem;
    border-radius: 4px;
    border: 1px solid #f5c6cb;
}

/* Admin Panel */
.admin-header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 1.5rem;
}

.admin-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logout-btn {
    color: white;
    background-color: #e74c3c;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.logout-btn:hover {
    background-color: #c0392b;
}

.admin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.stat-card h3 {
    font-size: 1rem;
    color: #7f8c8d;
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2c3e50;
}

.admin-tabs {
    display: flex;
    border-bottom: 1px solid #ddd;
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 0.8rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 1rem;
    font-weight: 500;
    color: #7f8c8d;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: #2c3e50;
}

.tab-btn.active {
    color: #3498db;
    border-bottom-color: #3498db;
}

.tab-content {
    display: none;
}

.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    min-height: 100px;
    resize: vertical;
}

.save-btn,
.update-btn,
.add-btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-right: 1rem;
}

.save-btn {
    background-color: #2ecc71;
    color: white;
}

.save-btn:hover {
    background-color: #27ae60;
}

.update-btn {
    background-color: #3498db;
    color: white;
}

.update-btn:hover {
    background-color: #2980b9;
}

.add-btn {
    background-color: #9b59b6;
    color: white;
}

.add-btn:hover {
    background-color: #8e44ad;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: 0.8rem;
    margin-bottom: 1.5rem;
    border-radius: 4px;
    border: 1px solid #c3e6cb;
}

.admin-list table,
.product-list table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    background-color: white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

.admin-list th,
.product-list th {
    background-color: #2c3e50;
    color: white;
    padding: 1rem;
    text-align: left;
}

.admin-list td,
.product-list td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.admin-list tr:last-child td,
.product-list tr:last-child td {
    border-bottom: none;
}

.admin-list tr:hover,
.product-list tr:hover {
    background-color: #f9f9f9;
}

.view-btn {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: #3498db;
    color: white;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.view-btn:hover {
    background-color: #2980b9;
}

/* Responsive */
@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }

    .admin-container {
        padding: 1rem;
    }

    .admin-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .admin-header {
        flex-direction: column;
        gap: 1rem;
    }

    .admin-tabs {
        flex-wrap: wrap;
    }

    .tab-btn {
        flex: 1 0 auto;
    }
}