:root{--color-primary: #d40050;--color-accent: #ccff00;--color-dark: #212121;--color-white: #ffffff;--color-bg: #f7f5f6;--color-border: #e5e0e2;--color-text-muted: #6b6b6b;--color-danger: #d40050;--color-warning: #b8860b;--color-success: #2e7d32;--radius: 10px;--shadow: 0 1px 3px rgba(33, 33, 33, .08)}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--color-bg);color:var(--color-dark)}a{color:var(--color-primary);text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--color-dark);color:var(--color-white);padding:24px 16px;flex-shrink:0}.sidebar-logo{font-size:20px;font-weight:700;margin-bottom:32px;display:flex;align-items:center;gap:8px}.sidebar-logo .dot{width:10px;height:10px;border-radius:50%;background:var(--color-accent)}.sidebar-nav a{display:block;color:#d4d4d4;padding:10px 12px;border-radius:var(--radius);margin-bottom:4px;font-size:14px;font-weight:500}.sidebar-nav a:hover,.sidebar-nav a.active{background:#ffffff14;color:var(--color-white)}.main-content{flex:1;padding:32px 40px;max-width:1200px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-header h1{font-size:24px;margin:0}.card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border-radius:var(--radius);border:none;font-weight:600;font-size:14px;cursor:pointer;transition:opacity .15s}.btn:hover{opacity:.85}.btn-primary{background:var(--color-primary);color:var(--color-white)}.btn-outline{background:transparent;border:1px solid var(--color-border);color:var(--color-dark)}.btn-accent{background:var(--color-accent);color:var(--color-dark)}.btn-danger{background:var(--color-primary);color:var(--color-white)}.btn:disabled{opacity:.5;cursor:not-allowed}.site-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.site-card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);cursor:pointer;transition:transform .15s,box-shadow .15s}.site-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #2121211f}.site-card-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:10px}.site-card h3{margin:0 0 4px;font-size:16px}.site-card .url{font-size:12px;color:var(--color-text-muted)}.status-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0;margin-top:4px}.status-ok{background:var(--color-success)}.status-warning{background:#e6a817}.status-critical{background:var(--color-primary)}.status-unreachable{background:#9e9e9e}.badge{display:inline-block;font-size:11px;font-weight:700;padding:3px 8px;border-radius:100px;background:var(--color-accent);color:var(--color-dark)}.badge-danger{background:var(--color-primary);color:var(--color-white)}.notification-item{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--color-border);font-size:14px}.notification-item:last-child{border-bottom:none}.severity-tag{font-size:11px;font-weight:700;padding:2px 8px;border-radius:100px;margin-right:8px}.severity-critical{background:var(--color-primary);color:#fff}.severity-warning{background:#fdf0d5;color:#8a5a00}.severity-info{background:#e8f0fe;color:#1a4fa0}table{width:100%;border-collapse:collapse;font-size:14px}th{text-align:left;padding:10px 8px;color:var(--color-text-muted);font-weight:600;border-bottom:2px solid var(--color-border)}td{padding:10px 8px;border-bottom:1px solid var(--color-border)}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--color-dark)}.login-card{background:var(--color-white);padding:40px;border-radius:var(--radius);width:360px}.login-card h1{font-size:22px;margin:0 0 4px}.login-card .accent{color:var(--color-primary)}.field{margin-bottom:16px}.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}.field input{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:14px}.field input:focus{outline:none;border-color:var(--color-primary)}.error-text{color:var(--color-primary);font-size:13px;margin-top:8px}.timer-widget{display:flex;align-items:center;gap:12px;background:var(--color-dark);color:#fff;padding:12px 20px;border-radius:var(--radius)}.timer-display{font-variant-numeric:tabular-nums;font-weight:700;font-size:18px}.empty-state{text-align:center;padding:60px 20px;color:var(--color-text-muted)}