:root {
    --rn-primary: #2563eb;
    --rn-primary-hover: #1d4ed8;
    --rn-secondary: #6b7280;
    --rn-secondary-hover: #4b5563;
    --rn-danger: #dc2626;
    --rn-danger-hover: #b91c1c;
    --rn-success: #16a34a;
    --rn-warning: #d97706;
    --rn-border: #e5e7eb;
    --rn-bg: #f9fafb;
    --rn-text: #1f2937;
    --rn-text-light: #6b7280;
    --rn-white: #ffffff;
    --rn-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --rn-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --rn-radius: 8px;
    --rn-radius-sm: 4px;
}

.rn-container {
    max-width: 1200px;
    margin: 0 auto;
    margin-bottom: 150px !important;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--rn-text);
}

.rn-container * {
    box-sizing: border-box;
}

.rn-login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.rn-login-box {
    background: var(--rn-white);
    padding: 40px;
    border-radius: var(--rn-radius);
    box-shadow: var(--rn-shadow-lg);
    width: 100%;
    max-width: 400px;
}

.rn-login-box h2 {
    margin: 0 0 30px 0;
    text-align: center;
    color: var(--rn-text);
}

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

.rn-header h2 {
    margin: 0;
    font-size: 24px;
}

.rn-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    background: var(--rn-bg);
    padding: 5px;
    border-radius: var(--rn-radius);
}

.rn-nav-item {
    padding: 12px 24px;
    text-decoration: none;
    color: var(--rn-text-light);
    border-radius: var(--rn-radius-sm);
    transition: all 0.2s ease;
    font-weight: 500;
}

.rn-nav-item:hover {
    color: var(--rn-primary);
    background: var(--rn-white);
}

.rn-nav-item.active {
    background: var(--rn-primary);
    color: var(--rn-white);
}

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

.rn-form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--rn-text);
    font-size: 14px;
}

.rn-form-group input,
.rn-form-group select,
.rn-form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--rn-border);
    border-radius: var(--rn-radius-sm);
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.rn-form-group input:focus,
.rn-form-group select:focus,
.rn-form-group textarea:focus {
    outline: none;
    border-color: var(--rn-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.rn-form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.rn-form-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.rn-full-width {
    flex: 1 1 100%;
}

.rn-half-width {
    flex: 1 1 calc(50% - 10px);
    min-width: 200px;
}

.rn-quarter-width {
    flex: 1 1 calc(25% - 15px);
    min-width: 120px;
}

.rn-small-width {
    flex: 1 1 150px;
    min-width: 100px;
}

.rn-flex-grow {
    flex: 1 1 auto;
    min-width: 150px;
}

.rn-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    border: none;
    border-radius: var(--rn-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    gap: 8px;
}

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

.rn-btn-primary:hover {
    background: var(--rn-primary-hover);
}

.rn-btn-secondary {
    background: var(--rn-bg);
    color: var(--rn-text);
    border: 1px solid var(--rn-border);
}

.rn-btn-secondary:hover {
    background: var(--rn-border);
}

.rn-btn-danger {
    background: var(--rn-danger);
    color: var(--rn-white);
}

.rn-btn-danger:hover {
    background: var(--rn-danger-hover);
}

.rn-btn-small {
    padding: 8px 14px;
    font-size: 13px;
}

.rn-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.rn-message {
    padding: 12px 16px;
    border-radius: var(--rn-radius-sm);
    margin-top: 15px;
    font-size: 14px;
}

.rn-message.success {
    background: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.rn-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.rn-error {
    color: var(--rn-danger);
    padding: 20px;
    background: #fee2e2;
    border-radius: var(--rn-radius);
}

.rn-table-responsive {
    overflow-x: auto;
}

.rn-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--rn-white);
    border-radius: var(--rn-radius);
    overflow: hidden;
    box-shadow: var(--rn-shadow);
}

.rn-table th,
.rn-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--rn-border);
}

.rn-table th {
    background: var(--rn-bg);
    font-weight: 600;
    color: var(--rn-text);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rn-table tbody tr:hover {
    background: var(--rn-bg);
}

.rn-table tbody tr:last-child td {
    border-bottom: none;
}

.rn-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.rn-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.status-new {
    background: #e3f2fd;
    color: #1565c0;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-processing {
    background: #fff3e0;
    color: #e65100;
}

.status-cancelled {
    background: #fee2e2;
    color: #991b1b;
}

.status-completed {
    background: #e0f2f1;
    color: #00695c;
}

.status-delivered {
    background: #f3e5f5;
    color: #7b1fa2;
}

.status-paid {
    background: #e8f5e9;
    color: #1b5e20;
}

.rn-empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--rn-bg);
    border-radius: var(--rn-radius);
}

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

.rn-form-section {
    background: var(--rn-white);
    padding: 30px;
    border-radius: var(--rn-radius);
    box-shadow: var(--rn-shadow);
    margin-bottom: 30px;
}

.rn-form-section h4 {
    margin: 0 0 25px 0;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--rn-border);
    color: var(--rn-text);
    font-size: 18px;
}

.rn-item-block {
    background: var(--rn-bg);
    padding: 25px;
    border-radius: var(--rn-radius);
    margin-bottom: 20px;
    border: 1px solid var(--rn-border);
    position: relative;
}

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

.rn-item-title {
    font-weight: 600;
    color: var(--rn-primary);
    font-size: 16px;
}

.rn-remove-item {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--rn-danger);
    color: var(--rn-white);
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.rn-remove-item:hover {
    background: var(--rn-danger-hover);
}

.rn-image-upload {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.rn-image-preview {
    width: 100px;
    height: 100px;
    border: 2px dashed var(--rn-border);
    border-radius: var(--rn-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--rn-white);
}

.rn-image-preview.has-image {
    border-style: solid;
}

.rn-image-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
}

.rn-form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    padding-top: 20px;
}

.rn-order-view {
    background: var(--rn-white);
    padding: 30px;
    border-radius: var(--rn-radius);
    box-shadow: var(--rn-shadow);
}

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

.rn-order-header h3 {
    margin: 0;
    font-size: 22px;
}

.rn-order-meta {
    background: var(--rn-bg);
    padding: 15px 20px;
    border-radius: var(--rn-radius-sm);
    margin-bottom: 30px;
}

.rn-order-meta p {
    margin: 5px 0;
    font-size: 14px;
}

.rn-order-section {
    margin-bottom: 30px;
}

.rn-order-section h4 {
    margin: 0 0 20px 0;
    color: var(--rn-text);
    font-size: 18px;
    border-bottom: 2px solid var(--rn-primary);
    padding-bottom: 10px;
    display: inline-block;
}

.rn-order-details p {
    margin: 8px 0;
    font-size: 15px;
}

.rn-items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.rn-item-card {
    background: var(--rn-bg);
    border-radius: var(--rn-radius);
    overflow: hidden;
    border: 1px solid var(--rn-border);
}

.rn-item-card-header {
    background: var(--rn-primary);
    color: var(--rn-white);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.rn-item-card-header .rn-item-number {
    width: 28px;
    height: 28px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.rn-item-card-header .rn-item-name {
    font-weight: 600;
}

.rn-item-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background: var(--rn-white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.rn-item-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.rn-readonly-price {
    background: #f3f4f6 !important;
    color: #6b7280 !important;
    border-color: #e5e7eb !important;
    cursor: default;
    box-shadow: none !important;
}

.rn-third-width {
    flex: 1 1 180px;
    min-width: 140px;
}

.rn-full-width {
    flex: 1 1 100%;
}

.rn-price-row {
    align-items: flex-end;
}

.rn-item-details {
    padding: 16px;
}

.rn-item-details p {
    margin: 6px 0;
    font-size: 14px;
}

.rn-order-total {
    background: var(--rn-primary);
    color: var(--rn-white);
    padding: 20px 25px;
    border-radius: var(--rn-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
}

.rn-total-amount {
    font-size: 24px;
    font-weight: 700;
}

.rn-order-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--rn-border);
}

.rn-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--rn-white);
    animation: rn-spin 0.8s linear infinite;
}

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

@media (max-width: 768px) {
    .rn-container {
        padding: 15px;
    }
    
    .rn-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .rn-nav {
        flex-direction: column;
    }
    
    .rn-nav-item {
        text-align: center;
    }
    
    .rn-form-row {
        flex-direction: column;
    }
    
    .rn-half-width,
    .rn-quarter-width {
        flex: 1 1 100%;
    }
    
    .rn-table th,
    .rn-table td {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .rn-actions {
        flex-direction: column;
    }
    
    .rn-form-actions {
        flex-direction: column;
    }
    
    .rn-order-actions {
        flex-direction: column;
    }
    
    .rn-order-total {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .rn-items-grid {
        grid-template-columns: 1fr;
    }
}