* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Ocygen, Ubuntu, sans-serif; background: #0f172a; color: #e2e8f0; }
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 240px; background: #1e293b; padding: 1.5rem 1rem; border-right: 1px solid #334155; }
.logo { font-size: 1.25rem; font-weight: 700; color: #38dbf8 ; margin-bottom: 2rem; }
.nav a { display: block; padding: 0.75rem 1rem; color: #cbd5e1; text-decoration: none; border-radius: 0.5rem; margin-bottom: 0.5rem; }
.nav a.active, .nav a:hover { background: #334155; color: #fff; }
.main { flex: 1; padding: 2rem; }
.card { background: #1e293b; border: 1px solid #334155; border-radius: 0.75rem; padding: 1.5rem; margin-bottom: 1rem; }
button { background: #38dbf8 ; color: #0f172a; border: none; padding: 0.6rem 1.2rem; border-radius: 0.5rem; cursor: pointer; font-weight: 600; }
input, select, textarea { width: 100%; padding: 0.6rem; margin-bottom: 0.75rem; border: 1px solid #475569; border-radius: 0.5rem; background: #0f172a; color: #e2e8f0; }
.status-good { color: #4ade80; }
.status-bad { color: #f87171; }