/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-box {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #667eea;
    font-size: 32px;
    margin-bottom: 5px;
}

.login-header p {
    color: #666;
    font-size: 14px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

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

.captcha-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.captcha-display {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 3px;
    min-width: 100px;
    text-align: center;
    user-select: none;
}

.btn-refresh {
    background: #f0f0f0;
    border: none;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    transition: background 0.3s;
}

.btn-refresh:hover {
    background: #e0e0e0;
}

.captcha-container input {
    flex: 1;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-block {
    width: 100%;
}

.btn-outline {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

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

.btn-success {
    background: #28a745;
    color: white;
}

.alert {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
}

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

/* Navbar */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h2 {
    font-size: 24px;
}

.nav-menu {
    display: flex;
    gap: 15px;
    align-items: center;
}

.nav-user {
    font-size: 14px;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 40px;
}

.stat-info h3 {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: #333;
}

.stat-active .stat-number {
    color: #28a745;
}

.stat-inactive .stat-number {
    color: #dc3545;
}

/* Card */
.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.card-header h2 {
    font-size: 20px;
    color: #333;
}

/* Table */
.table-container {
    overflow-x: auto;
}

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

.data-table th {
    background: #f8f9fa;
    padding: 12px;
    text-align: right;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #e0e0e0;
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid #f0f0f0;
}

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

.uuid-cell {
    font-family: monospace;
    font-size: 12px;
    color: #666;
}

.badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

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

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

/* Links Container */
.links-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.link-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s;
}

.link-card:hover {
    background: #e9ecef;
    transform: translateX(-5px);
}

.link-icon {
    font-size: 32px;
}

.link-info h3 {
    margin-bottom: 5px;
}

.link-info p {
    color: #666;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .data-table {
        font-size: 12px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
}