:root{--bg-color:#f0f8ff;--text-color:#333;--primary-color:coral;--secondary-color:#87ceeb}*{box-sizing:border-box;-webkit-user-select:none;user-select:none;touch-action:pan-y}body{background-color:var(--bg-color);color:var(--text-color);flex-direction:column;height:100dvh;margin:0;padding:0;font-family:Hiragino Maru Gothic ProN,Yu Rounded,sans-serif;display:flex;overflow:hidden}.screen{flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;padding:20px;display:none;position:absolute;top:0;left:0}.screen.active{display:flex}#game-screen.active{justify-content:flex-start;padding:0}h1{text-align:center;color:tomato;text-shadow:2px 2px #fff,4px 4px #ffdab9;margin-bottom:40px;font-size:42px;line-height:1.2}h2{margin-bottom:20px;font-size:28px}.btn{background-color:var(--primary-color);color:#fff;cursor:pointer;text-align:center;border:none;border-radius:20px;width:80%;max-width:300px;margin:10px;padding:15px 30px;font-size:24px;font-weight:700;transition:transform .1s,box-shadow .1s;box-shadow:0 6px #cd5b45}.btn:active{transform:translateY(6px);box-shadow:0 0 #cd5b45}.btn.blue{background-color:#4682b4;box-shadow:0 6px #2f4f4f}.btn.blue:active{box-shadow:0 0 #2f4f4f}.btn.gray{background-color:#a9a9a9;box-shadow:0 6px #696969}.btn.gray:active{box-shadow:0 0 #696969}.btn.small-btn{border-radius:12px;width:auto;margin:0;padding:8px 16px;font-size:16px;box-shadow:0 4px #696969}.btn.small-btn:active{transform:translateY(4px);box-shadow:0 0 #696969}.btn:disabled{opacity:.5;cursor:not-allowed}#audio-controls{z-index:100;gap:10px;display:flex;position:absolute;top:10px;right:10px}#audio-controls button{cursor:pointer;background:#fffc;border:2px solid #ccc;border-radius:10px;padding:5px 10px;font-size:14px;font-weight:700}#stage-list{flex-direction:column;align-items:center;width:100%;max-height:60vh;display:flex;overflow-y:auto}#game-header{z-index:10;background-color:#fff;align-items:center;width:100%;height:60px;padding:0 10px;display:flex;box-shadow:0 2px 4px #0000001a}#stage-title{text-align:center;flex:1;font-size:20px;font-weight:700}#canvas-container{background-color:#000;flex:1;width:100%;position:relative;overflow:hidden}#game-canvas{object-fit:contain;width:100%;height:100%;display:block}#hud{z-index:10;background-color:#fff;border-top:4px solid #ccc;flex-direction:column;justify-content:center;align-items:center;width:100%;height:120px;padding:10px;display:flex}#targets-container{justify-content:center;gap:15px;width:100%;display:flex}.target-item{opacity:1;flex-direction:column;align-items:center;transition:opacity .3s;display:flex}.target-item.found{opacity:.3}.target-icon{background-color:#f9f9f9;border:2px solid #ddd;border-radius:10px;width:60px;height:60px}.target-name{margin-top:5px;font-size:14px;font-weight:700}.overlay{z-index:50;background:#ffffffe6;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:absolute;top:0;left:0}.overlay.hidden{display:none}#zukan-grid{grid-template-columns:repeat(3,1fr);gap:15px;width:90%;max-width:400px;max-height:60vh;padding-bottom:20px;display:grid;overflow-y:auto}.zukan-item{background:#fff;border:2px solid #ddd;border-radius:12px;flex-direction:column;align-items:center;padding:10px;display:flex}.zukan-item.locked{filter:grayscale()brightness(.5)}.zukan-icon{width:60px;height:60px}