:root{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#0f172a;background:#f8fafc}body{margin:0}main{max-width:1100px;margin:0 auto;padding:1.5rem}header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.5rem;background:#0f172a;color:#f8fafc}header a{color:#93c5fd}.controls{display:flex;flex-wrap:wrap;gap:.75rem;margin:1rem 0;align-items:flex-end}.controls label{display:flex;flex-direction:column;font-size:.8rem;gap:.25rem}input,select,button{font:inherit;padding:.35rem .5rem}.charts{display:grid;gap:2rem}.chart-card{background:#fff;border-radius:8px;padding:1rem;box-shadow:0 1px 3px #00000014}h2{margin:0 0 .75rem;font-size:1.1rem}
