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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --background: #0f172a;
    --surface: #1e293b;
    --surface-light: #334155;
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: #334155;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
}

.screen {
    min-height: 100vh;
}

.hidden {
    display: none !important;
}

/* Login Screen */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background: var(--surface);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.login-container h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: left;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--background);
    color: var(--text);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    resize: vertical;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-align: left;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--surface-light);
    color: var(--text);
    margin-left: 10px;
}

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

.error-message {
    color: var(--danger);
    margin-top: 15px;
    font-size: 0.9rem;
}

/* Header */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 20px 40px;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1600px;
    margin: 0 auto;
}

.header h1 {
    font-size: 1.5rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-info {
    color: var(--text-secondary);
    margin-right: 10px;
}

/* Dashboard */
.dashboard {
    max-width: 1600px;
    margin: 0 auto;
    padding: 40px;
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--surface);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--text);
}

.stat-value.green {
    color: var(--success);
}

.stat-value.red {
    color: var(--danger);
}

.stat-value.small {
    font-size: 1.2rem;
}

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

.server-card {
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.server-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.server-card.error {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.server-card.warning {
    border-color: var(--warning);
    background: rgba(245, 158, 11, 0.1);
}

.server-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.server-name {
    font-size: 1.3rem;
    font-weight: 600;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--success);
}

.server-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.server-status.running {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.server-status.stopped {
    background: rgba(100, 116, 139, 0.2);
    color: var(--secondary);
}

.server-status.error {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
}

.delete-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
    opacity: 0.6;
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    opacity: 1;
}

.edit-name-btn {
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
    opacity: 0.6;
    margin-left: 8px;
}

.edit-name-btn:hover {
    background: rgba(37, 99, 235, 0.2);
    opacity: 1;
}

/* Docker Containers - removed, now using server-card styling */

.server-metrics {
    margin-top: 20px;
}

.metric {
    margin-bottom: 15px;
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.metric-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.metric-value {
    font-weight: 600;
    font-size: 1rem;
}

.metric-value.normal {
    color: var(--success);
}

.metric-value.warning {
    color: var(--warning);
}

.metric-value.critical {
    color: var(--danger);
}

.metric-bar {
    height: 8px;
    background: var(--background);
    border-radius: 4px;
    overflow: hidden;
}

.metric-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.metric-fill.normal {
    background: var(--success);
}

.metric-fill.warning {
    background: var(--warning);
}

.metric-fill.critical {
    background: var(--danger);
}

.server-info {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.server-info div {
    margin-bottom: 5px;
}

.no-servers {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: var(--surface);
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background 0.2s;
}

.close-btn:hover {
    background: var(--background);
}

.modal-content form {
    padding: 24px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
}

.modal-actions .btn {
    width: auto;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .servers-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
    }
}