:root { --fg: #111; --bg: #fff; --accent: #e5322d; --muted: #777; --chip: #f2f2f2; }
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, -apple-system, sans-serif; color: var(--fg); background: var(--bg); line-height: 1.4; }
main { max-width: 640px; margin: 0 auto; padding: 24px 16px 80px; }
header { margin-bottom: 32px; }
h1 { font-size: 40px; margin: 0; letter-spacing: -1px; }
.pitch { font-size: 20px; margin: 4px 0 0; color: var(--muted); }
h2 { font-size: 20px; margin: 0 0 8px; display: flex; align-items: center; gap: 10px; }
.num { display: inline-flex; width: 28px; height: 28px; border-radius: 50%; background: var(--fg); color: var(--bg); align-items: center; justify-content: center; font-size: 15px; }
.step { padding: 20px 0; border-top: 1px solid #ddd; }
.hidden { display: none; }
.hint { margin: 0 0 12px; color: var(--muted); }
.small { font-size: 13px; color: var(--muted); }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 10px; }
input[type=text] { flex: 1; min-width: 200px; font-size: 18px; padding: 10px 12px; border: 2px solid var(--fg); border-radius: 8px; }
select { font-size: 16px; padding: 10px; border: 2px solid var(--fg); border-radius: 8px; background: var(--bg); }
button { font-size: 16px; padding: 10px 16px; border: 2px solid var(--fg); border-radius: 8px; background: var(--fg); color: var(--bg); cursor: pointer; }
button:disabled { opacity: .4; cursor: default; }
button.secondary { background: var(--bg); color: var(--fg); }
button.recording { background: var(--accent); border-color: var(--accent); }
#status { color: var(--muted); margin-left: 8px; }
#chips { display: flex; flex-wrap: wrap; gap: 14px 22px; margin: 18px 0; position: relative; }
.word { display: flex; gap: 3px; }
.chip { background: var(--chip); border-radius: 6px; padding: 6px 7px; text-align: center; min-width: 30px; transition: background .08s; }
.chip .r { font-size: 20px; font-weight: 600; }
.chip .i { font-size: 11px; color: var(--muted); }
.chip.on { background: var(--accent); color: #fff; }
.chip.on .i { color: #fff; }
#ball { width: 14px; height: 14px; border-radius: 50%; background: var(--accent); position: absolute; opacity: 0; transition: transform .07s linear, opacity .2s; pointer-events: none; z-index: 1; }