:root{color:#24180f;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background:#f6d679;font-family:Hiragino Sans,Yu Gothic,Yu Gothic UI,Meiryo,system-ui,sans-serif}*{box-sizing:border-box}html,body,#app{touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;width:100%;min-width:320px;height:100%;margin:0;overflow:hidden}button{appearance:none;color:#fff7df;font:inherit;background:#17120e;border:0;border-radius:8px;min-height:48px;padding:0 22px;font-weight:900;box-shadow:0 10px #d99925}button:active{transform:translateY(4px);box-shadow:0 6px #d99925}button:focus-visible{outline-offset:3px;outline:3px solid #2f6fbf}button.ghost{color:#24180f;background:#17120e14;box-shadow:inset 0 0 0 2px #24180f3d}button.ghost:active{transform:translateY(2px)}#app{isolation:isolate;position:relative}#game,.input-layer{width:100%;height:100%;position:absolute;inset:0}#game{z-index:1}.input-layer{z-index:2;touch-action:none}.hud{top:max(12px, env(safe-area-inset-top));z-index:3;pointer-events:none;justify-content:space-between;align-items:flex-start;gap:8px;display:flex;position:absolute;left:12px;right:12px}.hud-right{align-items:flex-start;gap:6px;display:flex}.brand,.hud-stats,.step-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#fffae8e6;border:2px solid #24180f29;box-shadow:0 8px 24px #54341133}.brand{border-radius:8px;align-items:center;gap:8px;min-width:0;max-width:46vw;padding:8px 10px;font-size:clamp(12px,3.2vw,15px);font-weight:1000;line-height:1;display:flex}.brand span:last-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.brand-mark{color:#fff;background:linear-gradient(90deg,#151515 0 50%,#f4be2d 50% 100%);border-radius:50%;flex:0 0 26px;place-items:center;width:26px;height:26px;font-size:13px;display:grid}.hud-stats{border-radius:8px;grid-template-columns:repeat(3,minmax(42px,1fr));gap:2px;padding:6px;display:grid}.hud-stats>div:not(.koshi-gauge){justify-items:center;min-width:38px;line-height:1.05;display:grid}.hud-stats span,.step-card span,.input-copy span,.input-copy small{color:#60492b;font-size:10px;font-weight:900}.hud-stats strong{font-size:clamp(15px,4.3vw,21px)}.koshi-gauge{background:#24180f29;border-radius:999px;grid-column:1/-1;height:7px;margin-top:3px;overflow:hidden}.koshi-gauge i{background:#e8a12c;border-radius:999px;height:100%;transition:width .16s,background-color .22s;display:block}.koshi-gauge i[data-level=high]{background:#3fae7d}.koshi-gauge i[data-level=low]{background:#d2543c}.hud-buttons{gap:6px;display:grid}.icon-button{color:#24180f;pointer-events:auto;background:#fffae8e6;border-radius:8px;place-items:center;width:40px;min-height:40px;padding:0;font-size:18px;display:grid;box-shadow:0 4px #92682280}.icon-button:active{transform:translateY(2px);box-shadow:0 2px #92682280}.icon-button[hidden]{display:none}.step-card{top:calc(max(12px, env(safe-area-inset-top)) + 74px);z-index:3;pointer-events:none;border-radius:8px;justify-items:center;min-width:min(70vw,330px);padding:6px 14px 8px;display:grid;position:absolute;left:50%;transform:translate(-50%)}.step-card strong{font-size:clamp(18px,6vw,27px);line-height:1.05}.step-card em{color:#8a5b22;font-size:11px;font-style:normal;font-weight:900}.feedback{z-index:3;color:#fff8df;text-align:center;-webkit-text-stroke:3px #211712;paint-order:stroke fill;text-shadow:0 6px 16px #21171273;opacity:0;pointer-events:none;width:min(86vw,440px);font-size:clamp(28px,9vw,46px);font-weight:1000;line-height:1;transition:opacity .16s,transform .16s;position:absolute;top:41%;left:50%;transform:translate(-50%,-50%)scale(.96)}.feedback.show{opacity:1;transform:translate(-50%,-50%)scale(1)}.feedback.miss{color:#cdf2ff}.bottom-panel{z-index:4;min-height:calc(132px + env(safe-area-inset-bottom));padding:16px 20px calc(18px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);pointer-events:none;background:radial-gradient(circle at 82% 30%,#fff8dab3,#0000 24%),linear-gradient(#fffce833,#fffce8d9),#f8c448bf;border-top:2px solid #ffffff8a;grid-template-columns:92px minmax(0,430px);justify-content:center;align-items:center;gap:14px;display:grid;position:absolute;bottom:0;left:0;right:0}.action-badge{background:#231a1129;border:4px solid #fff8db;border-radius:18px;place-items:center;gap:1px;width:92px;height:96px;transition:transform 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i{color:#fff8db;background:#fff8db29;border-radius:5px;padding:7px 0;font-size:13px;font-style:normal;font-weight:1000;box-shadow:inset 0 0 0 1px #fff8db57}.lane-legend b{color:#ffe6a8;grid-column:1/-1;font-size:11px;font-weight:900}.modal .lane-note{color:#8a6a3f;font-size:12px}.difficulty{grid-template-columns:repeat(3,1fr);gap:8px;width:100%;display:grid}.difficulty button{color:#3c2c19;background:#17120e14;min-height:44px;padding:0 6px;font-size:clamp(13px,3.6vw,15px);box-shadow:inset 0 0 0 2px #24180f33}.difficulty button:active{transform:none}.difficulty button.active{color:#fff7df;background:#17120e;box-shadow:inset 0 0 0 2px #d99925}.best-line{color:#6b5233;font-size:12px;font-weight:900}.best-line.is-new{color:#c2591f;font-size:15px}.result-stats{grid-template-columns:repeat(3,1fr);gap:8px;width:100%;margin:0;display:grid}.result-stats div{background:#f6d67957;border-radius:8px;gap:2px;padding:8px 4px;display:grid}.result-stats 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