*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Malgun Gothic",sans-serif;background:#f6f6f6;color:#111}
main{max-width:560px;margin:0 auto;padding:16px}
h1{font-size:22px}
h2{font-size:16px;margin:0 0 8px}
h2 small{font-weight:normal;color:#666}
.step{background:#fff;border-radius:12px;padding:16px;margin-bottom:12px}
.hint{color:#666;font-size:13px}
.btn{display:inline-block;padding:12px 16px;border-radius:8px;border:1px solid #ccc;background:#fff;font-size:15px;cursor:pointer}
.btn.primary{background:#1976d2;color:#fff;border:none;width:100%}
.btn:disabled{opacity:.5;cursor:default}
.photo{display:block;width:100%;margin-top:12px;border-radius:8px;background:#eee}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.item{border:2px solid transparent;border-radius:8px;padding:4px;background:#fafafa;cursor:pointer;font-size:12px;text-align:center}
.item img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:6px}
.item.on{border-color:#1976d2;background:#e8f1fb}