*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,sans-serif;background:#f6f5f2;color:#1d1d1d;line-height:1.45}
header{background:#1d1d1d;color:#fff;padding:24px 16px}header h1{margin:0;font-size:1.7rem}header p{margin:6px 0 0;opacity:.85}
main{max-width:720px;margin:0 auto;padding:16px}
form{background:#fff;border-radius:12px;padding:16px;box-shadow:0 1px 3px #0001}
label{display:block;font-weight:600;margin:10px 0 6px}.row{display:flex;gap:8px;align-items:center}
input{font-size:1.2rem;padding:10px;border:1px solid #ccc;border-radius:8px;width:90px}small{display:block;color:#666;margin-top:4px}
#sum{font-weight:600;margin:14px 0 0}
.card{background:#fff;border-radius:12px;padding:14px 16px;margin:12px 0;border-left:6px solid #ccc;box-shadow:0 1px 3px #0001}
.card.fit{border-color:#1a9c4a}.card.tight{border-color:#e0a100}.card.nofit{border-color:#d33;opacity:.8}
.card h3{margin:0 0 4px;font-size:1.05rem}.brand{color:#666;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.badge{float:right;font-weight:700;font-size:.8rem;padding:4px 10px;border-radius:99px;color:#fff}
.fit .badge{background:#1a9c4a}.tight .badge{background:#e0a100}.nofit .badge{background:#d33}
.card ul{padding-left:18px;margin:8px 0}.why{margin:6px 0}.note{color:#666;font-size:.85rem}
a.btn{display:inline-block;margin-top:6px;background:#1d1d1d;color:#fff;padding:8px 14px;border-radius:8px;text-decoration:none}
.rule{background:#fff;border-radius:12px;padding:12px 16px;margin-top:16px}
footer{max-width:720px;margin:0 auto;padding:16px;color:#555;font-size:.85rem}footer a{color:#c00;font-weight:600}