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

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

/* 로그인 페이지 */
.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: 3rem;
    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;
    margin-bottom: 2rem;
    color: #333;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.error-message {
    background: #fee;
    color: #c33;
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    border-left: 4px solid #c33;
}

.login-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e0e0e0;
    font-size: 0.9rem;
    color: #666;
}

.login-info p {
    margin: 0.5rem 0;
}

/* 어드민 레이아웃 */
.admin-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

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

.admin-nav {
    background: white;
    padding: 0 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    display: flex;
    gap: 0;
}

.admin-nav a {
    padding: 1rem 1.5rem;
    text-decoration: none;
    color: #666;
    border-bottom: 3px solid transparent;
    transition: all 0.3s;
}

.admin-nav a:hover {
    color: #667eea;
    background: #f8f9fa;
}

.admin-nav a.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.admin-main {
    flex: 1;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

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

.page-header h2 {
    font-size: 2rem;
    color: #333;
}

/* 통계 카드 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.stat-card h3 {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1rem;
    font-weight: 500;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #667eea;
}

.quick-actions {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.quick-actions h3 {
    margin-bottom: 1rem;
    color: #333;
}

.quick-actions .btn {
    margin-right: 1rem;
}

/* 테이블 */
.table-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    overflow-x: auto;
}

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

.data-table thead {
    background: #f8f9fa;
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #e0e0e0;
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.data-table tbody tr:hover {
    background: #f8f9fa;
}

.product-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 5px;
}

.text-center {
    text-align: center;
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-badge.active {
    background: #d4edda;
    color: #155724;
}

.status-badge.inactive {
    background: #f8d7da;
    color: #721c24;
}

.level-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: bold;
    margin-right: 0.5rem;
}

.level-badge.level-1 {
    background: #667eea;
    color: white;
}

.level-badge.level-2 {
    background: #764ba2;
    color: white;
}

.level-badge.level-3 {
    background: #f093fb;
    color: white;
}

.actions {
    white-space: nowrap;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

/* 폼 */
.product-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group small {
    display: block;
    margin-top: 0.5rem;
    color: #666;
    font-size: 0.85rem;
}

.current-image {
    margin-bottom: 1rem;
}

.current-image img {
    border-radius: 5px;
    border: 2px solid #e0e0e0;
}

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

.message {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

/* 버튼 */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* 반응형 */
@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .admin-nav {
        flex-wrap: wrap;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: scroll;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}