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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    font-size: 28px;
    font-weight: 600;
}

.status-bar {
    display: flex;
    gap: 30px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-label {
    font-weight: 500;
    opacity: 0.9;
}

.status-value {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
}

.status-value.connected {
    background: #10b981;
}

.status-value.disconnected {
    background: #ef4444;
}

.main-content {
    padding: 30px;
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.panel {
    background: #f9fafb;
    border-radius: 8px;
    padding: 24px;
    border: 1px solid #e5e7eb;
}

.panel h2 {
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    margin-right: 8px;
    margin-top: 8px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #10b981;
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.terminal-panel {
    grid-column: 1 / -1;
}

.terminal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.terminal-controls {
    display: flex;
    gap: 16px;
    align-items: center;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #4b5563;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    cursor: pointer;
}

.terminal {
    background: #1e1e1e;
    color: #d4d4d4;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 13px;
    padding: 16px;
    border-radius: 6px;
    height: 400px;
    overflow-y: auto;
    margin-bottom: 12px;
    border: 2px solid #374151;
}

.terminal::-webkit-scrollbar {
    width: 8px;
}

.terminal::-webkit-scrollbar-track {
    background: #2d2d2d;
}

.terminal::-webkit-scrollbar-thumb {
    background: #4b5563;
    border-radius: 4px;
}

.terminal::-webkit-scrollbar-thumb:hover {
    background: #6b7280;
}

.terminal-line {
    padding: 2px 0;
    word-wrap: break-word;
}

.terminal-line.received {
    color: #4ade80;
}

.terminal-line.sent {
    color: #60a5fa;
}

.terminal-line.error {
    color: #f87171;
}

.terminal-line.info {
    color: #fbbf24;
}

.timestamp {
    color: #9ca3af;
    margin-right: 8px;
    font-size: 11px;
}

.terminal-input-area {
    display: flex;
    gap: 8px;
}

.terminal-input-area input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.terminal-input-area select {
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 13px;
    background: white;
}

.stats-panel {
    grid-column: 1 / -1;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.stat-item {
    background: white;
    padding: 16px;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-label {
    font-size: 14px;
    color: #6b7280;
    font-weight: 500;
}

.stat-value {
    font-size: 18px;
    font-weight: 700;
    color: #1f2937;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .status-bar {
        flex-direction: column;
        gap: 12px;
        width: 100%;
    }
}