/* MQTT Bridge Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* Navigation */
.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;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-title {
    font-size: 1.5rem;
    font-weight: 600;
}

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

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary { background: #3498db; color: white; }
.btn-primary:hover { background: #2980b9; }

.btn-success { background: #27ae60; color: white; }
.btn-success:hover { background: #229954; }

.btn-danger { background: #e74c3c; color: white; }
.btn-danger:hover { background: #c0392b; }

.btn-warning { background: #f39c12; color: white; }
.btn-warning:hover { background: #e67e22; }

.btn-info { background: #17a2b8; color: white; }
.btn-info:hover { background: #138496; }

.btn-secondary { background: #6c757d; color: white; }
.btn-secondary:hover { background: #5a6268; }

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

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

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.status-item {
    padding: 1rem;
    border: 1px solid #e1e8ed;
    border-radius: 6px;
    background: #f8f9fa;
}

.status-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.client-name {
    font-weight: 600;
}

.status-indicator {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-indicator.connected {
    background: #d4edda;
    color: #155724;
}

.status-indicator.disconnected {
    background: #f8d7da;
    color: #721c24;
}

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

/* Table */
.destinations-table {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

.table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
}

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

.topic-info {
    font-size: 0.8rem;
    color: #6c757d;
}

.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

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

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

.actions {
    display: flex;
    gap: 0.25rem;
    flex-wrap: wrap;
}

/* Forms */
.form-container {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #dee2e6;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section h3 {
    margin-bottom: 1rem;
    color: #495057;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
    color: #495057;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="file"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 0.9rem;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="password"]:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.current-file {
    font-size: 0.8rem;
    color: #6c757d;
    margin-top: 0.25rem;
}

.form-help {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 1rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid #dee2e6;
}

/* Login */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.login-form {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.error {
    color: #e74c3c;
    text-align: center;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: #f8d7da;
    border-radius: 4px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #6c757d;
}

.empty-state p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .main-content {
        padding: 0 1rem;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .header-actions {
        justify-content: center;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .status-grid {
        grid-template-columns: 1fr;
    }
    
    .table {
        font-size: 0.8rem;
    }
    
    .actions {
        flex-direction: column;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}