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/* 音符チャレンジ: 読みやすい譜面に、スターと即時フィードバックを添える。 */
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.instrument small{line-height:1.6;min-height:3.2em;display:flex;flex-direction:column;justify-content:center}.instrument small span{display:block;white-space:nowrap}

/* 10問完了: 成績の計時から独立した短いお祝い画面 */
.celebration{max-width:660px;margin:16px auto;text-align:center;position:relative;overflow:hidden;padding:35px 24px 28px;border-radius:28px;background:#fff;border:2px solid var(--line);box-shadow:0 6px 0 #dce8e1;isolation:isolate}.celebration>*:not(.celebration-confetti){position:relative;z-index:1}.celebration-icon{font-size:65px;color:#a6760c;margin:0 auto 14px;width:115px;height:115px;border-radius:30px;background:#ffedac;display:grid;place-items:center}.celebration-mascot{width:135px;height:135px;object-fit:contain;display:block;margin:0 auto 10px}.celebration .eyebrow{display:block}.celebration h1{font-size:33px;margin:12px 0;color:var(--green);line-height:1.4}.celebration-score{margin:20px auto 12px;border-radius:22px;background:#fff4ce;padding:16px;max-width:340px;color:#294238}.celebration-score>span{font-size:16px;display:block}.celebration-score strong{font-size:88px;line-height:1.2;font-variant-numeric:tabular-nums}.celebration-score strong small{font-size:21px;margin-left:9px}.celebration-message{font-size:16px;min-height:29px}.celebration .primary{max-width:340px;margin:22px auto 10px}.celebration .hint{margin:8px 0}.celebration-countdown{height:5px;max-width:220px;margin:12px auto 0;background:#e4ebe7;overflow:hidden;border-radius:5px}.celebration-countdown span{display:block;height:100%;background:var(--green);transform-origin:left;animation:celebration-countdown var(--celebration-duration) linear forwards}.celebration-confetti{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:0}.celebration-confetti i{position:absolute;left:var(--x);top:-18px;width:9px;height:16px;background:var(--confetti-color);border-radius:2px;opacity:0;animation:celebration-fall 2.7s var(--delay) ease-out forwards}.celebration.master{border-color:#cca947}.celebration.master .celebration-score{background:#ffea9c}@keyframes celebration-countdown{to{transform:scaleX(0)}}@media(prefers-reduced-motion:no-preference){.celebration{animation:celebration-in .3s ease-out}.celebration-score{animation:celebration-pop .45s cubic-bezier(.2,1.5,.4,1) both}@keyframes celebration-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}@keyframes celebration-pop{from{opacity:0;transform:scale(.72)}to{opacity:1;transform:scale(1)}}}@keyframes celebration-fall{0%{opacity:0;transform:translateY(0) rotate(0)}10%{opacity:.9}85%{opacity:.9}100%{opacity:0;transform:translateY(600px) rotate(480deg)}}@media(prefers-reduced-motion:reduce){.celebration-confetti{display:none}.celebration-countdown span{animation:none}}@media(max-width:700px){.celebration{padding:24px 15px;margin:8px auto}.celebration h1{font-size:27px}.celebration-icon{height:90px;width:90px;font-size:53px}.celebration-mascot{width:110px;height:110px}.celebration-score{margin-top:16px;padding:14px}.celebration-score strong{font-size:72px}.celebration-score strong small{font-size:18px}.celebration-message{font-size:14px}.celebration .primary{margin-top:18px}}