.practice-room{height:100dvh;min-height:480px;max-width:1000px;margin:auto;display:flex;flex-direction:column;position:relative;background:#f7f5ef;color:#233f37;isolation:isolate;padding-top:env(safe-area-inset-top)}.take-name{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px}.take-name h3{flex:1 1 180px;min-width:0;font-size:18px;line-height:1.6;overflow-wrap:anywhere}.take-name .button{flex-shrink:0;min-height:44px}.take-name-form{display:grid;gap:12px;margin-bottom:16px;padding:14px;background:#eef2e7;border-radius:8px}.take-name-form label{display:grid;gap:8px;font-size:15px}.take-name-form input{width:100%;font-size:16px;min-height:46px}.take-name-form .practice-message{margin:0}.take-name-form .button{min-height:44px}.practice-header{display:flex;align-items:center;gap:12px;padding:13px 22px;border-bottom:1px solid #e0e4d9;flex-shrink:0}.practice-header 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-1}.poem-stage{grid-column:1;grid-row:3;margin:0 8px 10px 12px}.practice-controls{grid-column:2;grid-row:3;align-self:center}.practice-sound-row{grid-template-columns:1fr 1fr}.practice-sound-row label{grid-column:1 / -1}.practice-record-row{grid-template-columns:1fr;gap:8px}.practice-record-row label{flex-direction:row;align-items:center}.practice-record-row label>span{min-width:75px}.practice-footnote{flex-wrap:wrap}.practice-drawer{top:65px}}:root{font-family:Yu Gothic UI,Hiragino Kaku Gothic ProN,Meiryo,sans-serif;color:#233f37;background:#f7f5ef;font-synthesis:none;font-size:16px;--green:#234f42;--deep:#173e36;--line:#e3e5dc;--serif:"Yu Mincho","Hiragino Mincho 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