:root{color-scheme:dark;--gold:#e2c578;--cream:#f7f2e5;--muted:#a6a59c;--line:#32322d;--bg:#10100f}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--cream);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid white;outline-offset:5px}button:disabled{opacity:.3;cursor:default}.app{max-width:1260px;margin:auto;padding:24px 40px}.masthead{display:flex;align-items:center;gap:28px;height:65px;margin-bottom:26px}.brand{width:139px;height:72px;object-fit:contain}.edition{font-size:12px;letter-spacing:2px;border-left:1px solid #44443b;padding-left:26px;line-height:1.7}.edition span{display:block;font-size:10px;color:var(--muted);letter-spacing:1.7px}.demo-badge{margin-left:auto;font-size:11px;letter-spacing:2px;border:1px solid #57503b;border-radius:4px;padding:7px 11px;color:var(--gold)}.game-shell{border:1px solid #424037;border-radius:14px;overflow:hidden;background:#151613;box-shadow:0 24px 90px #0005}.hud{height:92px;padding:19px 30px;display:flex;gap:45px;align-items:center;background:#1b1c18;border-bottom:1px solid #35362e}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2px;color:var(--muted)}.score-group{display:grid;grid-template-columns:auto auto;gap:4px 20px;align-items:center}.score-group .eyebrow{grid-column:1/3}.score-group strong,.time-group strong{font-variant-numeric:tabular-nums;font-size:34px;line-height:1;font-weight:500;letter-spacing:-1px}.combo{font-size:10px;letter-spacing:1.3px;color:var(--gold);border:1px solid #534b30;border-radius:4px;padding:7px 10px}.time-group{margin-left:auto;display:flex;align-items:center;gap:15px}.time-group .eyebrow{max-width:35px;line-height:1.5}.time-group strong span{font-size:16px;color:#b6b4a7;margin-left:4px}.tools{display:flex;gap:8px}.icon-button{width:42px;height:42px;background:#25261f;border:1px solid #45453a;border-radius:50%;color:#ede9d8;font-size:20px;position:relative}.icon-button span{font-size:22px;position:absolute;left:13px;top:8px}.stage{height:490px;position:relative;overflow:hidden;touch-action:none;background:#131411}canvas{width:100%;height:100%;display:block}.track-label{position:absolute;right:22px;top:20px;font-size:9px;letter-spacing:2px;color:#969882;pointer-events:none}.overlay{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(90deg,#10120ff2 0%,#11130fda 36%,#11130f00 80%)}.intro{justify-self:start;margin-left:7%;width:400px}.run-tag{font-size:10px;letter-spacing:2.1px;color:var(--gold);display:flex;align-items:center;gap:10px}.run-tag span{width:21px;height:2px;background:var(--gold)}h1{font-size:90px;line-height:.82;letter-spacing:-5px;margin:25px 0 21px;font-weight:900;font-style:italic}h1 span{display:block;color:var(--gold)}.intro-copy{color:#c5c5b8;line-height:1.5;font-size:15px;margin:0 0 18px}.mini-guide{display:flex;gap:20px;font-size:20px;color:var(--gold);margin-bottom:23px}.mini-guide b{font-size:11px;font-weight:400;color:#d8d7cd;vertical-align:middle;margin-left:3px}.primary{background:var(--gold);color:#171910;border:0;border-radius:6px;padding:17px 22px;font-weight:800;font-size:13px;letter-spacing:1.2px;display:flex;align-items:center;justify-content:space-between;width:100%;transition:background .2s,transform .15s}.primary:hover{background:#f3d78b;transform:translateY(-1px)}.primary:active{transform:translateY(1px)}.primary span{font-weight:500;font-size:11px;opacity:.7}.intro .primary{max-width:300px}.fine{font-size:10px;color:#aaa99d;margin-top:12px}.controls{display:flex;justify-content:space-between;align-items:center;min-height:54px;padding:12px 26px;border-top:1px solid #35362e;font-size:11px;color:#b8b8aa;gap:10px}kbd{font-family:inherit;padding:4px 6px;border:1px solid #57584b;border-radius:3px;margin-right:4px;font-size:10px}.keyboard-hint{display:flex;gap:3px;align-items:center}.keyboard-hint i{width:12px}.obstacle-hint{display:flex;align-items:center;gap:8px}.obstacle-hint i{width:10px;height:10px;background:#ed805f;transform:rotate(45deg)}.touch-hint,.touch-buttons{display:none}.tier-panel{padding:26px 4px 0}.tier-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.tier-caption{font-size:11px;color:#c4c2b6}.tier-track{height:3px;background:#34352e;position:relative}.tier-progress{height:100%;width:0;background:var(--gold);transition:width .25s}.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.tiers>div{padding:16px 0;opacity:.55;transition:opacity .2s}.tiers>div.reached{opacity:1}.tiers>div>span{font-size:9px;letter-spacing:1.7px;color:#cbc6b2}.tiers strong{display:block;font-size:28px;font-weight:500;letter-spacing:-1px;margin:7px 0 0}.tiers small{font-size:9px;letter-spacing:1px;font-weight:400;color:var(--gold);vertical-align:middle;margin-left:5px}.tiers p{font-size:11px;color:#b0afa3;margin:6px 0 0}footer{display:flex;justify-content:space-between;gap:12px;border-top:1px solid #32332d;margin-top:16px;padding:22px 0 4px;font-size:9px;letter-spacing:1px;color:#959589}footer span:last-child{letter-spacing:0}.hidden{display:none!important}.pause-card,.result-card{background:#191b16f5;border:1px solid #62593b;padding:30px;text-align:center;max-width:390px;width:90%;border-radius:12px;box-shadow:0 20px 80px #0008}.pause-card h2{font-size:34px;letter-spacing:-1.5px;margin:18px 0 12px}.pause-card p{font-size:14px;color:#b8b8a7;margin-bottom:25px}.text-button{background:transparent;border:0;color:#c9c8bb;font-size:12px;padding:15px 8px 0;text-decoration:underline;text-underline-offset:4px}.result-card{padding:24px 28px}.result-card h2{font-size:28px;letter-spacing:-1px;margin:12px 0 0}.result-score{display:flex;gap:9px;justify-content:center;align-items:baseline;margin:8px 0 15px}.result-score strong{font-size:64px;font-weight:500;letter-spacing:-3px}.result-score span{font-size:10px;letter-spacing:2px;color:#acae9a}.reward{padding:14px 8px;background:#2c2d20;border:1px solid #555133;border-radius:6px}.reward>span{font-size:9px;letter-spacing:1.5px;color:var(--gold)}.reward strong{display:block;font-size:26px;margin:8px 0}.reward p{font-size:10px;margin:0;color:#c5c4b5}.result-meta{display:flex;justify-content:space-between;font-size:10px;color:#b5b5a5;margin:20px 0}.pickup-toast{position:absolute;left:50%;top:24%;transform:translate(-50%,10px);background:#e5ca7f;color:#1b2013;padding:10px 16px;font-size:12px;font-weight:700;border-radius:5px;opacity:0;transition:opacity .15s,transform .15s;pointer-events:none;white-space:nowrap}.pickup-toast.show{opacity:1;transform:translate(-50%,0)}.pickup-toast.hit{background:#f59a77}.streak-flash{position:absolute;top:20px;left:22px;font-size:12px;letter-spacing:1.5px;color:var(--gold)}.collection{padding:32px 0 0}.collection h2{font-size:34px;letter-spacing:-1px;margin:10px 0}.collection-heading>p{color:#b6b7a9;font-size:15px}.fact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:25px}.fact{border:1px solid #3c4033;border-radius:7px;padding:22px;background:#191c15}.fact .eyebrow{color:var(--gold);font-size:9px}.fact h3{font-size:18px;margin:13px 0 10px}.fact p{font-size:14px;color:#c2c5b5;line-height:1.6}.fact a{color:var(--gold);font-size:12px;text-underline-offset:4px}.facts-note{font-size:12px;color:#a6aa98;line-height:1.6;max-width:850px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
@media(min-width:1400px){.app{padding-top:30px}.stage{height:530px}}
@media(max-width:700px){.app{padding:14px 14px 0}.masthead{height:48px;margin-bottom:16px;gap:17px}.brand{width:102px;height:55px}.edition{font-size:9px;padding-left:16px;letter-spacing:1.2px}.edition span{font-size:8px;letter-spacing:1px}.demo-badge{font-size:9px;padding:6px 8px;letter-spacing:1px}.hud{height:76px;padding:14px 15px;gap:13px}.score-group{gap:4px 9px}.score-group strong,.time-group strong{font-size:28px}.eyebrow{font-size:9px;letter-spacing:1.4px}.combo{font-size:8px;letter-spacing:.5px;padding:6px;max-width:80px;line-height:1.4}.time-group{gap:7px}.time-group .eyebrow{font-size:8px;letter-spacing:1px}.tools{gap:5px}.icon-button{width:33px;height:33px;font-size:17px}.icon-button span{left:10px;top:3px}.stage{height:470px}.intro{margin-left:8%;width:84%}h1{font-size:78px}.overlay{background:linear-gradient(90deg,#10120fed,#11130f88)}.track-label{font-size:8px;right:12px;top:15px;letter-spacing:1px}.intro-copy{font-size:14px}.controls{padding:13px 14px;flex-wrap:wrap;justify-content:center;gap:11px}.keyboard-hint,.obstacle-hint{display:none}.touch-hint{display:block;font-size:10px}.touch-buttons{display:flex;gap:10px;width:100%}.touch-buttons button{color:#e2d7b2;background:#292c21;border:1px solid #53553d;border-radius:6px;min-height:44px;flex:1;font-size:20px;touch-action:manipulation}.touch-buttons #jump{flex:2;font-size:12px;letter-spacing:2px}.touch-buttons #jump span{margin-left:10px}.tier-panel{padding-top:20px}.tier-heading{gap:10px}.tier-heading .eyebrow{font-size:8px;letter-spacing:1px}.tier-caption{font-size:10px}.tiers{gap:8px}.tiers strong{font-size:26px}.tiers>div>span{font-size:8px}.tiers p{font-size:10px}footer{display:block;font-size:8px;line-height:1.7;margin-top:6px;padding:15px 0}footer span{display:block}.result-card{padding:22px 20px}.fact-grid{grid-template-columns:1fr}.collection h2{font-size:28px}.pickup-toast{font-size:10px;padding:9px 11px}.streak-flash{font-size:10px;left:13px;top:15px}}
@media(max-width:370px){.edition{display:none}.hud{gap:8px}.combo{display:none}.stage{height:445px}.intro{margin-left:7%}.mini-guide{gap:13px}h1{font-size:70px}.tier-heading .eyebrow{max-width:120px;line-height:1.5}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.primary:hover{transform:none}}
/* Readability pass: gameplay instructions and actionable text stay legible. */
.intro-copy{font-size:16px}.mini-guide b{font-size:13px}.fine{font-size:12px}.controls{font-size:12px}.keyboard-hint kbd{font-size:11px}.reward p,.result-meta,.text-button{font-size:12px}.tier-caption,.tiers p{font-size:12px}.fact p{font-size:16px}.fact a{font-size:14px}.facts-note{font-size:13px}footer{font-size:10px}.touch-hint{font-size:12px}
@media(max-width:700px){.intro-copy{font-size:16px}.mini-guide b{font-size:12px}.fine{font-size:11px}.tier-caption,.tiers p{font-size:11px}.result-meta{font-size:11px}.reward p{font-size:11px}.eyebrow{font-size:10px}.touch-hint{font-size:12px}.collection-heading>p{font-size:16px}}
/* Arcade revision: existing layout retained, six sample milestones. */
.tiers{grid-template-columns:repeat(6,1fr);gap:14px}.tiers>div>span{font-size:10px;letter-spacing:1px}.tiers strong{font-size:27px}.tiers small{font-size:9px;margin-left:2px}.tiers>div.reached{position:relative}.tiers>div.reached::before{content:'';position:absolute;top:0;left:0;width:30px;height:2px;background:var(--gold)}.track-label{display:flex;gap:16px;color:#e5d6a7;font-size:10px;letter-spacing:1.5px;text-shadow:0 1px 4px #000}.run-form{position:absolute;bottom:17px;left:22px;pointer-events:none;font-size:10px;letter-spacing:1.5px;color:#f1d797;text-shadow:0 1px 4px #000}.run-form>div{margin-top:7px;width:82px;height:3px;background:#656251}.run-form i{display:block;height:100%;background:#e3c275;width:0;transition:width .3s}.result-reason{font-size:12px;color:#c7c5b8;line-height:1.5;margin:9px 0}.result-card{padding:24px}.result-card h2{font-size:28px}.result-score{margin:5px 0 10px}.result-score strong{font-size:58px}.result-meta{margin:15px 0}.intro-copy{max-width:360px}.streak-flash{max-width:45%;line-height:1.5;font-size:10px}.pickup-toast{top:21%;box-shadow:0 3px 20px #0005}.stage{background:#151922}.game-shell{background:#15181c}.overlay{background:linear-gradient(90deg,#10131aed 0%,#11151cc9 38%,#11151c00 83%)}#resultPanel,#pausePanel{background:#0b10194f;backdrop-filter:blur(2px)}
@media(max-width:700px){.tiers{grid-template-columns:repeat(3,1fr);gap:0 16px}.tiers>div{padding:13px 0}.tiers>div>span{font-size:9px}.track-label{gap:9px;font-size:8px;letter-spacing:1px}.run-form{left:13px;bottom:14px;font-size:9px}.streak-flash{font-size:8px;max-width:42%;top:16px}.result-card{padding:20px 17px}.result-card h2{font-size:27px}.result-reason{font-size:11px}.result-score strong{font-size:52px}.result-score{margin:3px 0 8px}.reward{padding:11px 8px}.result-meta{margin:13px 0}.intro-copy{max-width:265px}.mini-guide{gap:14px}.mini-guide b{font-size:11px}.overlay{background:linear-gradient(90deg,#10131aec,#11151c8a)}.pickup-toast{font-size:11px;max-width:90%;white-space:normal;text-align:center}.touch-hint{font-size:11px}}
/* Fixed notification rail is outside the canvas: never covers approaching hazards. */
.run-status{height:72px;flex-shrink:0;padding:10px 25px 8px;background:#20221b;border-bottom:1px solid #3c4030;overflow:hidden;contain:layout paint}
.run-status-readout{display:flex;align-items:center;gap:16px;height:16px;color:#c2bea7;font-size:10px;line-height:16px;letter-spacing:1.2px;white-space:nowrap}
.run-status-readout #pace{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;color:#e2c578}
.run-status-readout #distance{font-variant-numeric:tabular-nums}
.pace-meter{width:52px;height:3px;background:#565746;flex-shrink:0}.pace-meter i{display:block;height:100%;background:#e3c275;transition:width .3s}
.run-status .pickup-toast{position:static;inset:auto;transform:none!important;max-width:100%;width:100%;height:32px;margin-top:5px;padding:0;border:0;border-radius:0;box-shadow:none;background:transparent;color:#f0d794;font-size:13px;font-weight:600;line-height:16px;text-align:left;white-space:normal;overflow-wrap:anywhere;overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;pointer-events:none;transition:opacity .15s;opacity:0}
.run-status .pickup-toast.show{opacity:1}.run-status .pickup-toast.hit{background:transparent;color:#f0a080}
@media(max-width:700px){.run-status{height:76px;padding:9px 13px 8px}.run-status-readout{gap:10px;font-size:9px;letter-spacing:.6px}.pace-meter{width:35px}.run-status .pickup-toast{font-size:12px;line-height:17px;height:34px;margin-top:6px}}
@media(prefers-reduced-motion:reduce){.run-status .pickup-toast,.pace-meter i{transition:none}}
/* Horizontal alignment only: the existing notice row height and vertical position stay fixed. */
.run-status .pickup-toast{text-align:center}
.tiers{grid-template-columns:repeat(7,minmax(0,1fr));gap:12px}.tiers .free-tier strong{font-size:20px;line-height:1.25}.tiers>div>span{overflow-wrap:anywhere}
@media(max-width:700px){.tiers{grid-template-columns:repeat(3,minmax(0,1fr));gap:0 12px}.tiers .free-tier{grid-column:1/-1;text-align:center;border-top:1px solid #484430}.tiers .free-tier strong{font-size:24px}.run-status .pickup-toast{text-align:center}}