:root{color:#1d1b16;background:#f7f3e8;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;margin:0}button{font:inherit}.sr-only{clip:rect(0, 0, 0, 0);border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{background:linear-gradient(#ffffffc7,#f7f3e8f0),#f7f3e8;min-height:100vh}.app-main{width:min(1120px,100vw - 32px);margin:0 auto;padding:28px 0 40px}.app-header{gap:8px;margin-bottom:20px;display:grid}.app-header h1{margin:0;font-size:clamp(1.7rem,4vw,3.2rem);line-height:1.1}.app-header p{color:#5f5747;margin:0;font-size:1rem}.janggu-stage{margin:0;padding:14px 0}.janggu-svg{width:min(760px,100%);height:auto;margin:0 auto;display:block;overflow:visible}.janggu-body{fill:#b86638;stroke:#5c2f1c;stroke-width:8px}.janggu-rope{stroke:#f1d7a5;stroke-linecap:round;stroke-width:12px}.janggu-head{fill:#fff8e5;stroke:#3f3022;stroke-width:10px;transform-box:fill-box;transform-origin:50%;transition:transform 90ms,filter 90ms,fill 90ms}.janggu-head.is-hit{fill:#ffe2a8;filter:drop-shadow(0 0 18px #c55d226b);transform:scale(1.055)}.janggu-label{fill:#2c251b;pointer-events:none;font-size:34px;font-weight:800}.control-panel,.practice-panel,.sound-control-panel,.status-panel{background:#fffcf4d1;border:1px solid #3f302224;border-radius:8px;padding:16px}.control-panel h2,.sound-control-panel h2,.practice-panel h2{margin:0 0 12px;font-size:1.05rem}.sound-controls{gap:12px;display:grid}.sound-mute-button{color:#1d1b16;cursor:pointer;background:#fffaf0;border:1px solid #3f30223d;border-radius:8px;min-height:44px;padding:0 12px}.sound-mute-button:focus-visible{outline-offset:3px;outline:3px solid #2f7d73}.sound-slider-row{gap:7px;display:grid}.sound-slider-label{color:#2f281d;font-size:.88rem}.sound-controls input[type=range]{width:100%;max-width:100%}.sound-status{color:#2f281d;margin:10px 0 0;font-size:.9rem}.pattern-selector{background:#fffcf4d1;border:1px solid #3f302224;border-radius:8px;padding:16px}.pattern-selector h2{margin:0 0 12px;font-size:1.05rem}.pattern-segmented{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;display:grid}.pattern-button{color:#1d1b16;text-align:left;cursor:pointer;background:#fffaf0;border:1px solid #3f30223d;border-radius:8px;gap:5px;min-height:78px;padding:8px 10px;display:grid}.pattern-button strong{font-size:.94rem}.pattern-button small{color:#6a604f;font-size:.82rem;line-height:1.3}.pattern-button.is-selected{background:#e7f3ef;border-color:#2f7d73;box-shadow:inset 0 0 0 2px #2f7d73}.pattern-button:focus-visible{outline-offset:3px;outline:3px solid #2f7d73}.mobile-only-title{display:none}.hit-controls{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.hit-button{color:#1d1b16;cursor:pointer;background:#fffaf0;border:1px solid #3f30222e;border-radius:8px;place-items:center;gap:2px;min-height:92px;display:grid}.hit-button:focus-visible{outline-offset:3px;outline:3px solid #2f7d73}.keycap{color:#fff8e5;background:#242016;border-radius:6px;min-width:54px;padding:5px 10px;font-weight:800}.hit-syllable{font-size:1.5rem;font-weight:900}.hit-helper{color:#6a604f;font-size:.9rem}@media (width<=680px){.app-main{width:min(100vw - 20px,560px);padding-top:18px}.pattern-segmented{grid-template-columns:1fr}.mobile-only-title{display:inline}.hit-controls{grid-template-columns:1fr}}.practice-header,.status-panel{justify-content:space-between;align-items:center;gap:12px;margin-top:14px;display:flex}.score-badge{color:#fff;background:#2f7d73;border-radius:999px;padding:5px 10px;font-size:.9rem;font-weight:800}.jeongganbo-grid{background:#fff;border:2px solid #2f281d;grid-template-columns:repeat(4,minmax(0,1fr));display:grid}.jeonggan-cell{border-right:1px solid #2f281d;align-content:center;justify-items:center;gap:6px;min-height:112px;padding:10px;display:grid}.jeonggan-cell:last-child{border-right:0}.jeonggan-cell.is-current{background:#e7f3ef;box-shadow:inset 0 0 0 4px #2f7d73}.beat-label,.jeonggan-cell small,.status-panel span{color:#665c4d;font-size:.88rem}.jeonggan-cell strong{font-size:clamp(1.35rem,4vw,2.2rem)}@media (width<=680px){.jeongganbo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.jeonggan-cell{border-bottom:1px solid #2f281d}.jeonggan-cell:nth-last-child(-n+2){border-bottom:0}.jeonggan-cell:nth-child(2n){border-right:0}.practice-header,.status-panel{flex-direction:column;align-items:flex-start}}