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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
}

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

/* Login Section */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    text-align: center;
    color: #667eea;
    margin-bottom: 30px;
}

.default-credentials {
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 4px solid #667eea;
}

.default-credentials p {
    margin: 5px 0;
    font-size: 0.95em;
}

.error-message {
    color: #e74c3c;
    text-align: center;
    margin-top: 10px;
    font-size: 0.9em;
}

/* Admin Header */
.admin-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.admin-header h1 {
    font-size: 1.8em;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger, .btn-warning, .btn-view-store, .btn-logout {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-warning {
    background: #f39c12;
    color: white;
}

.btn-warning:hover {
    background: #e67e22;
}

.btn-view-store {
    background: #2ecc71;
    color: white;
    text-decoration: none;
    display: inline-block;
}

.btn-view-store:hover {
    background: #27ae60;
}

.btn-logout {
    background: rgba(255,255,255,0.2);
    color: white;
}

.btn-logout:hover {
    background: rgba(255,255,255,0.3);
}

/* Form Section */
.form-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 30px 0;
}

.form-section h2 {
    color: #667eea;
    margin-bottom: 20px;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #333;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 5px rgba(102, 126, 234, 0.3);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 0.85em;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* Products Section */
.products-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 30px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h2 {
    color: #667eea;
}

.product-count {
    background: #667eea;
    color: white;
    padding: 8px 15px;
    border-radius: 5px;
    font-weight: bold;
}

.products-list {
    display: grid;
    gap: 15px;
}

.product-item {
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 20px;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.product-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 5px;
}

.product-info h3 {
    color: #333;
    margin-bottom: 5px;
}

.product-info p {
    color: #666;
    font-size: 0.9em;
    margin: 5px 0;
}

.product-price {
    color: #667eea;
    font-weight: bold;
    font-size: 1.2em;
}

.product-actions {
    display: flex;
    gap: 10px;
}

.btn-edit, .btn-delete {
    padding: 8px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    transition: all 0.3s;
}

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

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

.btn-delete {
    background: #e74c3c;
    color: white;
}

.btn-delete:hover {
    background: #c0392b;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state p {
    font-size: 1.2em;
}

/* Actions Section */
.actions-section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 30px 0;
}

.actions-section h2 {
    color: #667eea;
    margin-bottom: 20px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .product-item {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .product-image {
        margin: 0 auto;
    }

    .product-actions {
        justify-content: center;
    }

    .action-buttons {
        flex-direction: column;
    }

    .admin-header .container {
        flex-direction: column;
        gap: 15px;
    }
}

/* Notification System */
.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.notification {
    background: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 300px;
    max-width: 400px;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
}

.notification.show {
    opacity: 1;
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid #2ecc71;
    background: #e8f8f5;
}

.notification-error {
    border-left: 4px solid #e74c3c;
    background: #fadbd8;
}

.notification-warning {
    border-left: 4px solid #f39c12;
    background: #fef5e7;
}

.notification-info {
    border-left: 4px solid #3498db;
    background: #ebf5fb;
}