:root{
  --accent1: #ff6b6b;
  --accent2: #ffd93d;
  --accent3: #6bcB77;
  --accent4: #4d96ff;
  --bg: #ffffff;
  --text: #111827;
}
*{box-sizing:border-box}
body{font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;margin:0;background:linear-gradient(180deg, #fff 0%, #f7fbff 100%);color:var(--text);line-height:1.5}
.header{padding:24px;background:linear-gradient(90deg,var(--accent4),var(--accent1));color:white;display:flex;align-items:center;justify-content:space-between}
.brand{font-weight:700;font-size:1.25rem;letter-spacing:0.4px}
.container{max-width:1100px;margin:24px auto;padding:0 16px}
.card{background:white;padding:18px;border-radius:12px;box-shadow:0 6px 20px rgba(16,24,40,0.06);margin-bottom:18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px}
.btn{display:inline-block;padding:8px 12px;border-radius:10px;background:var(--accent2);color:#0b1220;text-decoration:none;font-weight:600}
.footer{padding:18px;text-align:center;color:#6b7280;font-size:0.9rem}
.kv{font-weight:700;color:var(--accent3)}
@media (max-width:600px){.header{flex-direction:column;gap:8px;align-items:flex-start}}