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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

header h1 {
    font-size: 2em;
    font-weight: 600;
}

main {
    padding: 30px;
}

section {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e9ecef;
}

section h2 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: #495057;
    border-bottom: 2px solid #667eea;
    padding-bottom: 8px;
}

.status-display {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    padding: 15px;
    background: white;
    border-radius: 6px;
    border: 1px solid #dee2e6;
}

.status-indicator {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.status-indicator.running {
    background-color: #28a745;
    box-shadow: 0 0 8px rgba(40, 167, 69, 0.5);
}

.status-indicator.stopped {
    background-color: #dc3545;
    box-shadow: 0 0 8px rgba(220, 53, 69, 0.5);
}

.status-indicator.unknown {
    background-color: #6c757d;
    box-shadow: 0 0 8px rgba(108, 117, 125, 0.5);
}

.status-text {
    font-weight: 500;
    color: #495057;
}

.button-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 1em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

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

.btn-success:hover:not(:disabled) {
    background-color: #218838;
}

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

.btn-danger:hover:not(:disabled) {
    background-color: #c82333;
}

.btn-warning {
    background-color: #ffc107;
    color: #212529;
}

.btn-warning:hover:not(:disabled) {
    background-color: #e0a800;
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #5a6268;
}

.messages {
    max-height: 300px;
    overflow-y: auto;
    background: white;
    border-radius: 6px;
    padding: 15px;
    border: 1px solid #dee2e6;
}

.message {
    padding: 10px;
    margin-bottom: 8px;
    border-radius: 4px;
    border-left: 4px solid;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.message.success {
    background-color: #d4edda;
    border-color: #28a745;
    color: #155724;
}

.message.error {
    background-color: #f8d7da;
    border-color: #dc3545;
    color: #721c24;
}

.message.info {
    background-color: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

.message-time {
    font-size: 0.85em;
    opacity: 0.7;
    margin-right: 8px;
}