:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans KR,Apple SD Gothic Neo,sans-serif;background:#f5f7fb;color:#0f172a}main{max-width:780px;margin:48px auto;padding:24px;background:#fff;border-radius:12px;box-shadow:0 10px 30px rgba(15,23,42,.08)}h1{margin:0 0 8px;font-size:28px}p{margin-top:0;color:#334155}.uploader{display:grid;grid-gap:12px;gap:12px;margin-top:18px}.btn{border:0;border-radius:10px;padding:12px 16px;background:#2563eb;color:#fff;font-weight:600;cursor:pointer}.btn:disabled{background:#94a3b8;cursor:not-allowed}.status{margin-top:12px;font-size:14px;color:#334155}.result-box{margin-top:20px;border:1px solid #e2e8f0;border-radius:10px;overflow:hidden}.result-item{padding:12px 14px;border-top:1px solid #e2e8f0}.result-item:first-child{border-top:0}.success{color:#047857}.failed{color:#b91c1c}.skipped{color:#92400e}