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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Header */
.header {
    background: #2c3e50;
    color: white;
    padding: 1rem 0;
}

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

.logo h1 {
    margin: 0;
    font-size: 1.5rem;
}

.logo span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.nav a {
    color: white;
    text-decoration: none;
    margin-left: 1rem;
}

.nav a:hover {
    text-decoration: underline;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

.btn:hover {
    opacity: 0.9;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature {
    text-align: center;
    padding: 1rem;
}

/* Products grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.product-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.product-card img {
    max-width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 4px;
}

.no-image {
    height: 200px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6c757d;
}

.price {
    font-size: 1.25rem;
    font-weight: bold;
    color: #27ae60;
}

.manufacturer {
    color: #666;
    font-size: 0.9rem;
}

/* Filters */
.filters {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.filter-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.filter-form select,
.filter-form input {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.quantity-input {
    width: 60px;
    padding: 0.25rem;
}

.order-form {
    margin-top: 1rem;
}

/* Footer */
.footer {
    background: #34495e;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.no-results {
    text-align: center;
    grid-column: 1 / -1;
    padding: 2rem;
    color: #666;
}

/* Auth pages */
.auth-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
}

.auth-form {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
}

.form-group {
    margin-bottom: 1rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background: #d1edff;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Dashboard */
.user-orders,
.manufacturer-dashboard {
    margin-top: 2rem;
}

.orders-list {
    display: grid;
    gap: 1rem;
    margin-top: 1rem;
}

.order-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    background: white;
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.status {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: bold;
}

.status-new { background: #fff3cd; color: #856404; }
.status-confirmed { background: #d1ecf1; color: #0c5460; }
.status-in_progress { background: #d1edff; color: #004085; }
.status-completed { background: #d4edda; color: #155724; }
.status-cancelled { background: #f8d7da; color: #721c24; }

.status-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.status-select {
    padding: 0.25rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* Admin panel */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #3498db;
    margin: 0;
}

.orders-table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.orders-table table {
    width: 100%;
    border-collapse: collapse;
}

.orders-table th,
.orders-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.orders-table th {
    background: #f8f9fa;
    font-weight: bold;
}

.manufacturers-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.manufacturer-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    background: white;
}

.add-product-form {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.products-list {
    display: grid;
    gap: 1rem;
}

.product-item {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 1rem;
    background: white;
}

/* Notifications */
.notifications-link {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #e74c3c;
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notifications-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.notifications-list {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.notification-item {
    display: flex;
    align-items: flex-start;
    padding: 1rem;
    border-bottom: 1px solid #eee;
    position: relative;
}

.notification-item.unread {
    background: #f8f9fa;
}

.notification-item:last-child {
    border-bottom: none;
}

.notification-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
    margin-top: 0.25rem;
}

.notification-content {
    flex: 1;
}

.notification-content h3 {
    margin: 0 0 0.5rem 0;
    color: #2c3e50;
}

.notification-content p {
    margin: 0 0 0.5rem 0;
    color: #666;
}

.notification-time {
    font-size: 0.8rem;
    color: #999;
}

.unread-dot {
    width: 8px;
    height: 8px;
    background: #3498db;
    border-radius: 50%;
    margin-left: 1rem;
    margin-top: 0.5rem;
}

.no-notifications {
    text-align: center;
    padding: 3rem;
    color: #666;
}

/* Order form */
.order-form-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin: 2rem 0;
}

.order-summary,
.order-details {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
}

.product-info {
    background: white;
    padding: 1.5rem;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.total-price {
    font-size: 1.5rem;
    font-weight: bold;
    color: #27ae60;
    padding: 1rem;
    background: white;
    border-radius: 4px;
    text-align: center;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.product-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-top: 1rem;
}

.quantity-input {
    width: 70px;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}