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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.navbar {
    background: #2c3e50;
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 0.8;
}

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

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.search-bar {
    margin-bottom: 1rem;
}

.search-form {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.search-form input,
.search-form select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
}

.stats-summary {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
    flex: 1;
    min-width: 150px;
}

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

.stat-label {
    color: #666;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}

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

.stat-card-large {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-value-large {
    font-size: 3rem;
    font-weight: bold;
    color: #3498db;
}

.user-table,
.order-table,
.admin-table {
    width: 100%;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.user-table thead,
.order-table thead,
.admin-table thead {
    background: #34495e;
    color: white;
}

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

.user-table tbody tr:hover,
.order-table tbody tr:hover,
.admin-table tbody tr:hover {
    background: #f9f9f9;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.875rem;
    margin-right: 0.25rem;
    font-weight: 500;
}

.badge-admin { background: #e74c3c; color: white; }
.badge-member { background: #27ae60; color: white; }
.badge-sponsor { background: #f39c12; color: white; }
.badge-trial { background: #3498db; color: white; }
.badge-success { background: #27ae60; color: white; }
.badge-warning { background: #f39c12; color: white; }
.badge-danger { background: #e74c3c; color: white; }

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background 0.2s;
    font-size: 0.9rem;
}

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

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

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

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

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

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

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.pagination {
    margin-top: 2rem;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.user-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.detail-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.detail-card h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

.info-item {
    margin-bottom: 1rem;
}

.info-item label {
    font-weight: bold;
    display: block;
    margin-bottom: 0.25rem;
    color: #666;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 4px;
}

.diagnosis-issues,
.diagnosis-ok {
    margin-top: 1rem;
}

.diagnosis-issues h3 {
    color: #e74c3c;
}

.diagnosis-ok h3 {
    color: #27ae60;
}

.diagnosis-issues ul,
.diagnosis-ok ul {
    margin-top: 0.5rem;
    padding-left: 1.5rem;
}

.action-panel {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.inline-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

.inline-form .form-group {
    flex: 1;
    min-width: 200px;
}

.channel-list {
    margin-top: 0.5rem;
    padding-left: 1.5rem;
    color: #666;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    background: white;
    margin: 10% auto;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
    line-height: 1;
}

.close:hover {
    color: #333;
}

.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;
    font-size: 0.9rem;
}

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

.login-container {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    max-width: 400px;
    width: 100%;
}

.login-container h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

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

.flash {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.flash-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.flash-success {
    background: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

.flash-messages {
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .search-form {
        width: 100%;
    }
    
    .search-form input,
    .search-form select {
        flex: 1;
    }
    
    .user-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid-large {
        grid-template-columns: 1fr;
    }
}