/* Server Monitor - Main Stylesheet */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --sidebar-width: 250px;
    --header-height: 60px;
    --border-radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--gray-100); color: var(--gray-800); line-height: 1.5; }

.app-container { display: flex; min-height: 100vh; }
.sidebar { width: var(--sidebar-width); background: var(--gray-900); color: white; position: fixed; height: 100vh; display: flex; flex-direction: column; }
.sidebar-header { padding: 20px; border-bottom: 1px solid var(--gray-700); }
.logo { font-size: 1.25rem; font-weight: 600; }
.sidebar-menu { list-style: none; padding: 10px 0; flex: 1; overflow-y: auto; }
.menu-item { margin: 2px 8px; }
.menu-link { display: flex; align-items: center; gap: 12px; padding: 10px 12px; color: var(--gray-300); text-decoration: none; border-radius: 6px; transition: all 0.2s; }
.menu-link:hover { background: var(--gray-800); color: white; }
.menu-link.active { background: var(--primary); color: white; }
.menu-icon { font-size: 1.1rem; }
.menu-divider { border-top: 1px solid var(--gray-700); margin: 10px 0; }
.menu-header { padding: 10px 20px; font-size: 0.75rem; text-transform: uppercase; color: var(--gray-500); }
.sidebar-footer { padding: 15px; border-top: 1px solid var(--gray-700); }
.org-badge { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; color: var(--gray-400); }

.main-content { flex: 1; margin-left: var(--sidebar-width); min-height: 100vh; }
.header { background: white; height: var(--header-height); padding: 0 24px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--gray-200); position: sticky; top: 0; z-index: 10; }
.page-title { font-size: 1.25rem; font-weight: 600; }
.user-menu { display: flex; align-items: center; gap: 12px; }
.user-name { font-weight: 500; }
.content { padding: 24px; }

.auth-container { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%); }
.auth-box { background: white; padding: 40px; border-radius: var(--border-radius); width: 100%; max-width: 400px; box-shadow: 0 20px 40px rgba(0,0,0,0.2); }
.auth-header { text-align: center; margin-bottom: 30px; }
.auth-header h1 { font-size: 1.5rem; margin-bottom: 8px; }
.auth-header p { color: var(--gray-500); }
.auth-form { display: flex; flex-direction: column; gap: 20px; }
.auth-footer { text-align: center; margin-top: 20px; }
.auth-footer a { color: var(--primary); text-decoration: none; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-weight: 500; font-size: 0.875rem; }
.form-group input, .form-group select, .form-group textarea { padding: 10px 12px; border: 1px solid var(--gray-300); border-radius: 6px; font-size: 1rem; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1); }
.form-help { font-size: 0.75rem; color: var(--gray-500); }
.form-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 20px; }
.filters-form { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.form-group-inline { display: flex; align-items: center; gap: 8px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 20px; border: none; border-radius: 6px; font-size: 0.875rem; font-weight: 500; cursor: pointer; text-decoration: none; transition: all 0.2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: white; border: 1px solid var(--gray-300); color: var(--gray-700); }
.btn-outline:hover { background: var(--gray-50); }
.btn-danger { background: var(--danger); color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-sm { padding: 6px 12px; font-size: 0.75rem; }
.btn-block { width: 100%; }

.card { background: white; border-radius: var(--border-radius); box-shadow: 0 1px 3px rgba(0,0,0,0.1); margin-bottom: 20px; }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--gray-200); display: flex; align-items: center; justify-content: space-between; }
.card-header h3 { font-size: 1rem; font-weight: 600; }
.card-body { padding: 20px; }
.card-footer { padding: 16px 20px; border-top: 1px solid var(--gray-200); }
.card-form { max-width: 600px; }
.card-highlight { border-left: 4px solid var(--primary); }
.card-danger { border-left: 4px solid var(--danger); }

.table-responsive { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--gray-200); }
.table th { font-weight: 600; font-size: 0.75rem; text-transform: uppercase; color: var(--gray-500); background: var(--gray-50); }
.table tbody tr:hover { background: var(--gray-50); }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 24px; }
.stat-card { background: white; border-radius: var(--border-radius); padding: 20px; display: flex; align-items: center; gap: 16px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.stat-card-small { padding: 16px; text-align: center; flex-direction: column; gap: 4px; }
.stat-icon { font-size: 2rem; }
.stat-value { font-size: 1.75rem; font-weight: 700; }
.stat-label { font-size: 0.875rem; color: var(--gray-500); }

.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 20px; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 20px; }

.status-badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; text-transform: capitalize; }
.status-online, .status-active { background: #d1fae5; color: #065f46; }
.status-offline { background: var(--gray-200); color: var(--gray-600); }
.status-warning, .status-acknowledged { background: #fef3c7; color: #92400e; }
.status-critical { background: #fee2e2; color: #991b1b; }
.status-pending { background: #e0e7ff; color: #3730a3; }
.status-resolved { background: var(--gray-100); color: var(--gray-500); }

.severity-badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 500; }
.severity-critical { background: #fee2e2; color: #991b1b; }
.severity-warning { background: #fef3c7; color: #92400e; }
.severity-info { background: #dbeafe; color: #1e40af; }

.servers-list { display: flex; flex-direction: column; gap: 8px; }
.server-item { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--gray-200); border-radius: 6px; text-decoration: none; color: inherit; transition: all 0.2s; }
.server-item:hover { background: var(--gray-50); border-color: var(--gray-300); }
.server-status { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.server-status.status-online { background: var(--success); }
.server-status.status-offline { background: var(--gray-400); }
.server-status.status-warning { background: var(--warning); }
.server-status.status-critical { background: var(--danger); }
.server-status.status-pending { background: var(--info); }
.server-info { flex: 1; }
.server-name { font-weight: 500; }
.server-meta { font-size: 0.75rem; color: var(--gray-500); }
.server-last-seen { font-size: 0.75rem; color: var(--gray-500); }

.alerts-list { display: flex; flex-direction: column; gap: 8px; }
.alert-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px; border-radius: 6px; background: var(--gray-50); }
.alert-item.alert-critical { background: #fef2f2; }
.alert-item.alert-warning { background: #fffbeb; }
.alert-icon { font-size: 1.25rem; }
.alert-content { flex: 1; }
.alert-title { font-weight: 500; }
.alert-message { font-size: 0.875rem; color: var(--gray-600); margin-top: 2px; }
.alert-meta { font-size: 0.75rem; color: var(--gray-500); margin-top: 4px; }
.alert-actions { display: flex; gap: 8px; }
.alert-row-critical { background: #fef2f2; }
.alert-row-warning { background: #fffbeb; }

.metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; }
.metric-card { text-align: center; }
.metric-label { font-size: 0.75rem; color: var(--gray-500); margin-bottom: 4px; }
.metric-value { font-size: 1.5rem; font-weight: 600; }
.metric-bar { height: 6px; background: var(--gray-200); border-radius: 3px; margin-top: 8px; overflow: hidden; }
.metric-bar-fill { height: 100%; background: var(--primary); border-radius: 3px; }

.charts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 20px; }
.chart-container { height: 250px; position: relative; }
.chart-controls select { padding: 6px 12px; border: 1px solid var(--gray-300); border-radius: 4px; }

.install-commands { display: flex; flex-direction: column; gap: 20px; margin: 20px 0; }
.install-command h4 { margin-bottom: 8px; }
.code-block { display: flex; align-items: center; background: var(--gray-900); border-radius: 6px; padding: 12px 16px; overflow-x: auto; }
.code-block code { color: #a5f3fc; font-family: 'Monaco', 'Consolas', monospace; flex: 1; font-size: 0.875rem; }
.btn-copy { background: var(--gray-700); color: white; border: none; padding: 6px 12px; border-radius: 4px; cursor: pointer; font-size: 0.75rem; }
.btn-copy:hover { background: var(--gray-600); }

.info-list { display: grid; gap: 12px; }
.info-list dt { font-size: 0.75rem; color: var(--gray-500); text-transform: uppercase; }
.info-list dd { font-weight: 500; margin-bottom: 8px; }

.empty-state { text-align: center; padding: 40px 20px; color: var(--gray-500); }
.empty-state-large { text-align: center; padding: 80px 20px; }
.empty-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state h3 { color: var(--gray-700); margin-bottom: 8px; }

.danger-actions { display: flex; flex-direction: column; gap: 16px; }
.danger-action { display: flex; align-items: center; justify-content: space-between; padding: 16px; background: var(--gray-50); border-radius: 6px; }
.danger-info p { font-size: 0.875rem; color: var(--gray-500); margin-top: 4px; }

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.page-header h1 { font-size: 1.5rem; }
.page-header-left { display: flex; align-items: center; gap: 16px; }

.pagination { display: flex; align-items: center; justify-content: center; gap: 16px; }
.pagination-info { color: var(--gray-500); font-size: 0.875rem; }

.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 20px; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }

.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-success { color: var(--success) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--gray-500) !important; }

@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
    .dashboard-grid, .info-grid, .charts-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}