:root{--app-bg: #f8f9fa}html,body,#app{height:100%}body{background:var(--app-bg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial}.container-app{padding:24px}.drop-area{border:2px dashed #ccc;border-radius:8px;padding:24px;text-align:center;color:#666;background:#fff}.library-list{max-height:240px;overflow:auto}.player-row{font-size:28px;padding:28px;border-radius:6px;text-align:center;min-height:100px;display:flex;align-items:center;justify-content:center}..player-row .word{color:#777}.player-row .highlight{color:#000;font-weight:700}.player-page{min-height:0;display:flex;flex-direction:column}.player-stage{flex-grow:1;min-height:0;display:flex;flex-direction:column}.player-content{flex-grow:1;min-height:0;padding:24px;overflow:auto}.player-text .word{color:#777}.player-text .highlight{color:#000;font-weight:700}.player-controls{flex-shrink:0}.controls .btn{margin-right:8px}.small-muted{color:#6c757d}.settings-panel label{font-size:.9rem}