:root{font-family:Inter,system-ui,sans-serif;color:#f8fafc;background:#080d18;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 50% 0,#1e3a5f 0,#080d18 45%);padding:env(safe-area-inset-top) 18px env(safe-area-inset-bottom)}main{width:min(620px,100%);margin:auto;padding:48px 0}.eyebrow{color:#38bdf8;font-size:.75rem;font-weight:800;letter-spacing:.15em}h1{font-size:clamp(2rem,8vw,4rem);margin:.2em 0}.readout{min-height:250px;border:1px solid #26354b;border-radius:28px;background:#111827cc;display:grid;place-content:center;text-align:center;box-shadow:0 30px 80px #0008;margin:28px 0}#note{font-size:clamp(6rem,30vw,11rem);font-weight:850;line-height:1}#confidence{color:#94a3b8;margin-top:12px}button{width:100%;border:0;border-radius:14px;padding:16px;background:#38bdf8;color:#082f49;font:inherit;font-weight:800;font-size:1.05rem}button:disabled{opacity:.5}label{display:block;margin:24px 0;color:#cbd5e1}input{width:100%;margin-top:10px;accent-color:#38bdf8}.meta{display:flex;justify-content:space-between;gap:12px;color:#64748b;font-size:.82rem}.history{display:flex;flex-wrap:wrap;gap:8px;padding:0;list-style:none}.history li{padding:9px 12px;border-radius:10px;background:#1e293b;color:#7dd3fc;font-weight:800}.hint{color:#64748b;font-size:.85rem;line-height:1.5;margin-top:36px}h2{font-size:1rem;margin-top:32px;color:#cbd5e1}@media(max-width:420px){main{padding-top:24px}.readout{min-height:210px;margin:20px 0}}