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

:root {
    --primary: #3b82f6;
    --secondary: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1f2937;
    --light: #f3f4f6;
    --border: #e5e7eb;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 40px;
    padding: 40px 20px;
}

header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

.section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.section h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--dark);
}

/* Server Grid */
.server-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

.server-card {
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
}

.server-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.server-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.server-header h3 {
    font-size: 1.4rem;
    color: var(--dark);
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-badge.online {
    background: #d1fae5;
    color: var(--success);
}

.status-badge.offline {
    background: #fee2e2;
    color: var(--danger);
}

.status-badge.checking {
    background: #fef3c7;
    color: var(--warning);
}

.server-description {
    color: #6b7280;
    margin-bottom: 15px;
}

.server-details {
    margin: 15px 0;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--light);
}

.detail-item .label {
    font-weight: 600;
    color: var(--dark);
}

.detail-item code {
    background: var(--light);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* IDE Configuration */
.ide-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    border: 2px solid var(--border);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.config-container {
    border: 2px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.config-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--light);
    border-bottom: 2px solid var(--border);
}

#config-file-path {
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--secondary);
}

.config-code {
    display: block;
    padding: 20px;
    background: #1e293b;
    color: #e2e8f0;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    overflow-x: auto;
    min-height: 200px;
}

/* Logs Section */
.logs-header {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.logs-header select {
    flex: 1;
    padding: 10px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

.logs-container {
    background: #1e293b;
    color: #e2e8f0;
    padding: 20px;
    border-radius: 8px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    height: 400px;
    overflow-y: auto;
    line-height: 1.8;
}

.log-placeholder {
    color: #94a3b8;
    text-align: center;
    padding: 40px;
}

.log-entry {
    margin-bottom: 4px;
    word-wrap: break-word;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.tools-card {
    border: 2px solid var(--border);
    border-radius: 8px;
    padding: 20px;
}

.tools-card h3 {
    margin-bottom: 15px;
    color: var(--dark);
}

.tools-list {
    list-style: none;
}

.tools-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--light);
}

.tools-list li:last-child {
    border-bottom: none;
}

.tools-list code {
    background: var(--light);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-secondary {
    background: var(--light);
    color: var(--dark);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Footer */
footer {
    text-align: center;
    color: white;
    padding: 20px;
    opacity: 0.9;
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.checking {
    animation: pulse 2s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 768px) {
    .server-grid {
        grid-template-columns: 1fr;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .ide-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
}