:where([hidden]){display:none!important}:root{--ink:#14213d;--cream:#fff7dc;--paper:#fffdf5;--cyan:#12cfe0;--coral:#ff6b5e;--yellow:#ffd93d;font-family:ui-rounded,"Hiragino Maru Gothic ProN","Noto Sans JP",system-ui,sans-serif;color:var(--ink);background:var(--cream)}*{box-sizing:border-box}body{margin:0;min-height:100svh;background:radial-gradient(circle at 12% 8%,#fff 0 7%,transparent 7.3%),linear-gradient(135deg,#fff7dc,#dcfbff);overflow-x:hidden}.shell{width:min(480px,100%);min-height:100svh;margin:auto;padding:14px 14px 24px}.mast{display:flex;justify-content:space-between;align-items:center;font-size:.74rem;font-weight:900;letter-spacing:.08em}.mast a{color:inherit;text-decoration:none}.panel{min-height:calc(100svh - 66px);display:flex;flex-direction:column;align-items:center;justify-content:center}.eyebrow,.stamp{margin:0;font-weight:1000;letter-spacing:.14em}.intro h1{margin:6px 0 12px;font-size:clamp(3.5rem,18vw,6rem);line-height:.78;letter-spacing:-.09em;text-align:center;transform:rotate(-3deg)}.intro h1 span{color:var(--coral);text-shadow:5px 5px 0 var(--yellow)}.news-brief{width:100%;margin:0 0 12px;padding:10px 12px;border:2px solid var(--ink);border-radius:12px;background:#fff9;box-shadow:3px 3px 0 var(--ink)}.news-brief b{display:block;color:#005ea8;font-size:.65rem;letter-spacing:.12em}.news-brief p{margin:3px 0 0;font-size:.82rem;line-height:1.55;font-weight:800}.speed-note{margin:10px 0 0;font-size:.8rem;font-weight:900;text-align:center}.rule{width:100%;display:grid;grid-template-columns:1fr auto;gap:8px 12px;align-items:center;background:var(--paper);border:3px solid var(--ink);border-radius:18px;padding:14px;box-shadow:6px 6px 0 var(--ink)}.sample{display:grid;place-items:center;min-height:42px;border:3px solid var(--ink);border-radius:10px;font-size:1.1rem;font-weight:1000}.break{background:var(--cyan)}.bait{background:var(--coral)}.primary,.secondary,.controls button{font:inherit;font-weight:1000;border:3px solid var(--ink);border-radius:14px;cursor:pointer}.primary{width:100%;min-height:60px;margin-top:18px;background:var(--yellow);box-shadow:5px 5px 0 var(--ink);font-size:1.15rem}.primary:active,.controls button:active{transform:translate(3px,3px);box-shadow:2px 2px 0 var(--ink)}.key-help{font-size:.75rem;font-weight:700}.play{justify-content:flex-start;padding-top:12px}.hud{display:grid;grid-template-columns:repeat(3,1fr);width:100%;gap:7px}.hud p{margin:0;background:var(--paper);border:2px solid var(--ink);border-radius:10px;padding:6px;text-align:center}.hud span{display:block;font-size:.58rem;font-weight:900}.hud b{font-size:1.35rem}.hud i{font-style:normal}.signal{min-height:29px;margin:10px 0 5px;padding:4px 12px;border-radius:999px;background:var(--ink);color:white;font-size:.78rem;font-weight:1000;letter-spacing:.06em}.feed{position:relative;width:100%;height:min(54svh,430px);min-height:310px;display:grid;grid-template-columns:repeat(3,1fr);gap:7px;padding:8px;border:3px solid var(--ink);border-radius:18px;background:var(--paper);overflow:hidden;box-shadow:6px 6px 0 var(--ink)}.lane{border-radius:10px;background:repeating-linear-gradient(0deg,#f2eee1 0 2px,transparent 2px 26px)}.falling{position:absolute;top:52px;width:calc((100% - 30px)/3);height:62px;display:grid;place-items:center;border:3px solid var(--ink);border-radius:11px;font-weight:1000;box-shadow:4px 4px 0 var(--ink);transition:transform var(--drop-ms,1080ms) linear;z-index:2}.falling.lane-0{left:8px}.falling.lane-1{left:calc(33.333% + 3px)}.falling.lane-2{right:8px}.falling.break{background:var(--cyan)}.falling.bait{background:var(--coral);font-size:1.7rem}.falling.drop{transform:translateY(var(--drop-distance,0px))}.platform{position:absolute;bottom:14px;width:calc((100% - 30px)/3);height:calc(36px + var(--layers,0) * 10px);display:grid;place-items:center;border:3px solid var(--ink);border-radius:8px;background:repeating-linear-gradient(to top,var(--yellow) 0 9px,var(--ink) 9px 11px);font-weight:1000;transition:left .16s ease,height .18s ease;z-index:3}.platform.lane-0{left:8px}.platform.lane-1{left:calc(33.333% + 3px)}.platform.lane-2{left:calc(66.666% - 2px)}.platform.grew{animation:grow-pop .22s ease-out}@keyframes grow-pop{50%{transform:scale(1.08)}}.controls{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;margin-top:12px}.controls button{min-height:56px;background:white;box-shadow:4px 4px 0 var(--ink);font-size:1.7rem}.feedback{min-height:1.5em;margin:10px 0 0;font-weight:1000;text-align:center}.result{text-align:center}.stamp{padding:7px 15px;background:var(--cyan);border:3px solid var(--ink);border-radius:999px;transform:rotate(-5deg)}.stamp.fail{background:var(--coral)}.result h2{margin:20px 0 10px;font-size:clamp(2.2rem,10vw,3rem);line-height:1.02;letter-spacing:-.06em}.result>p{font-weight:800}.best{padding:10px 20px;border:2px solid var(--ink);border-radius:10px;background:white}.result-actions{width:100%}.result-actions .primary{margin-top:14px}.secondary{width:100%;min-height:50px;margin-top:12px;background:white}.news-link{margin-top:22px;color:var(--ink);font-size:.78rem;font-weight:700}button:focus-visible,a:focus-visible{outline:4px solid #1769ff;outline-offset:3px}@media(max-height:650px){.feed{height:330px}.panel{min-height:auto}.intro{padding-top:38px}.intro h1{font-size:4rem}}@media(prefers-reduced-motion:reduce){.platform{transition-duration:.01ms}.platform.grew{animation:none}}