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

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

.login-card {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 450px;
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #4CAF50, #2196F3, #9C27B0);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.login-logo i {
    font-size: 3rem;
    color: #4CAF50;
    margin-right: 1rem;
}

.login-logo h1 {
    font-size: 2rem;
    color: #333;
    margin: 0;
}

.login-header p {
    color: #666;
    font-size: 1.1rem;
    margin: 0;
}

/* Form Styles */
.login-form {
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.form-group label i {
    margin-right: 0.5rem;
    color: #4CAF50;
    width: 20px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"] {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.form-group input:focus {
    outline: none;
    border-color: #4CAF50;
    background: white;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

/* Checkbox Styles */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: normal;
    margin: 0;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #ddd;
    border-radius: 5px;
    margin-right: 0.5rem;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #4CAF50;
    border-color: #4CAF50;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
    font-weight: bold;
}

/* Button Styles */
.btn-login {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(76, 175, 80, 0.3);
}

/* Footer Links */
.login-footer {
    text-align: center;
    margin-bottom: 2rem;
}

.back-link,
.register-link {
    display: block;
    color: #666;
    text-decoration: none;
    margin: 0.5rem 0;
    transition: color 0.3s ease;
}

.back-link:hover,
.register-link:hover {
    color: #4CAF50;
}

.back-link i {
    margin-right: 0.5rem;
}

/* Demo Info */
.demo-info {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    border: 2px dashed #ddd;
}

.demo-info h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.demo-info p {
    margin: 0.5rem 0;
    color: #666;
}

.demo-info strong {
    color: #4CAF50;
}

/* Alert Styles */
.alert {
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-error {
    background: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

.alert-success {
    background: #e8f5e8;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.alert-info {
    background: #e3f2fd;
    color: #1565c0;
    border: 1px solid #bbdefb;
}

/* Dashboard Styles */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid #34495e;
    text-align: center;
}

.sidebar-header h2 {
    margin: 0;
    color: #4CAF50;
}

.sidebar-menu {
    padding: 1rem 0;
}

.sidebar-menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: #bdc3c7;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: #34495e;
    color: white;
    border-left-color: #4CAF50;
}

.sidebar-menu i {
    margin-right: 1rem;
    width: 20px;
    text-align: center;
}

.main-content {
    flex: 1;
    margin-left: 250px;
    background: #f8f9fa;
    min-height: 100vh;
}

.top-bar {
    background: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.user-avatar {
    width: 40px;
    height: 40px;
    background: #4CAF50;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.content-area {
    padding: 2rem;
}

.page-header {
    margin-bottom: 2rem;
}

.page-header h1 {
    color: #333;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: #666;
    margin: 0;
}

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

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

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

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

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.blue { background: #2196F3; }
.stat-icon.green { background: #4CAF50; }
.stat-icon.orange { background: #FF9800; }
.stat-icon.red { background: #f44336; }

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: #333;
    margin-bottom: 0.5rem;
}

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

/* Server List */
.server-list {
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    overflow: hidden;
}

.server-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.server-header h3 {
    margin: 0;
    color: #333;
}

.add-server-btn {
    background: #4CAF50;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.add-server-btn:hover {
    background: #45a049;
}

.server-item {
    padding: 1.5rem;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.server-item:hover {
    background: #f8f9fa;
}

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

.server-info h4 {
    margin: 0 0 0.5rem 0;
    color: #333;
}

.server-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-online { background: #4CAF50; }
.status-offline { background: #f44336; }
.status-maintenance { background: #FF9800; }

.server-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    padding: 0.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.action-btn.start { background: #4CAF50; color: white; }
.action-btn.stop { background: #f44336; color: white; }
.action-btn.restart { background: #FF9800; color: white; }
.action-btn.delete { background: #9C27B0; color: white; }

.action-btn:hover {
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .server-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .server-actions {
        width: 100%;
        justify-content: center;
    }
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #333;
    cursor: pointer;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid #4CAF50;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}