body { background: #f8fafc; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; color: #1e293b; }
.header { background: white; padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 1px 3px rgba(0,0,0,0.1); margin-bottom: 2rem; }
.header h1 { margin: 0; font-size: 1.5rem; color: #1877f2; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 1rem; padding-bottom: 5rem; }
.card { background: white; padding: 2rem; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.05); margin-bottom: 1.5rem; }
.btn { background: #1877f2; color: white; border: none; padding: 0.75rem 1.5rem; border-radius: 6px; font-weight: bold; cursor: pointer; text-decoration: none; display: inline-block; transition: background 0.2s; }
.btn:hover { background: #166fe5; }
.btn-danger { background: #ef4444; }
.btn-danger:hover { background: #dc2626; }
.form-control { width: 100%; padding: 0.75rem; border: 1px solid #cbd5e1; border-radius: 6px; outline: none; box-sizing: border-box; margin-bottom: 1rem; }
.badge { padding: 4px 8px; border-radius: 4px; font-size: 0.85rem; font-weight: bold; }
.badge-up { background: #e4f3e4; color: #00a400; }
.badge-down { background: #fef2f2; color: #ef4444; }
.badge-unknown { background: #f1f5f9; color: #64748b; }
.monitor-item { background: white; padding: 1.5rem; border-radius: 8px; margin-bottom: 1rem; box-shadow: 0 2px 4px rgba(0,0,0,0.05); display: flex; justify-content: space-between; align-items: center; border-left: 4px solid #cbd5e1; }
.monitor-up { border-left-color: #00a400; }
.monitor-down { border-left-color: #ef4444; }
table { width: 100%; border-collapse: collapse; background: white; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
th, td { padding: 1rem; text-align: left; }
th { background: #f1f5f9; font-weight: bold; }
tr { border-top: 1px solid #e2e8f0; }

/* Demo Navigation Banner */
.demo-banner { position: fixed; bottom: 20px; right: 20px; background: #111827; border-radius: 12px; padding: 1rem; box-shadow: 0 10px 25px rgba(0,0,0,0.5); z-index: 9999; display: flex; gap: 0.5rem; align-items: center; border: 1px solid rgba(255,255,255,0.1); }
.demo-banner-btn { background: #374151; color: white; border: none; padding: 0.5rem 1rem; border-radius: 6px; text-decoration: none; font-size: 0.9rem; cursor: pointer; font-weight: 500; transition: background 0.2s; }
.demo-banner-btn:hover { background: #4b5563; }
.demo-banner-btn.active { background: #1877f2; }
.demo-banner-btn.reset { background: #ef4444; }
.demo-banner-btn.reset:hover { background: #dc2626; }
.demo-label { color: #9ca3af; font-size: 0.8rem; margin-right: 0.5rem; font-weight: bold; text-transform: uppercase; letter-spacing: 1px; }

@media (max-width: 768px) {
    .monitor-item { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .demo-banner { bottom: 10px; right: 10px; left: 10px; flex-wrap: wrap; justify-content: center; }
}