.ds354-page{max-width:920px}.ds354-page .gameheader{margin-bottom:14px}.ds354-page .gameheader h1{margin:7px 0 6px}.ds354-tagline{max-width:760px!important}.ds354-product{padding:18px}.ds354-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:12px}.ds354-tabs,.ds354-order{display:flex;gap:5px;padding:4px;background:var(--soft);border-radius:12px;flex-wrap:wrap}.ds354-tabs button,.ds354-order button,.ds354-utility button{appearance:none;border:0;background:transparent;color:var(--muted);border-radius:9px;min-height:38px;padding:7px 11px;font:inherit;font-size:.82rem;font-weight:850;cursor:pointer}.ds354-tabs button.active,.ds354-order button.active{background:var(--card);color:var(--text);box-shadow:0 2px 8px rgba(20,24,31,.08)}.ds354-hud{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:0 0 10px}.ds354-hud>div{border:1px solid var(--line);background:#fafbfc;border-radius:12px;padding:9px 11px}.ds354-hud small{display:block;color:var(--muted);font-size:.68rem;font-weight:800}.ds354-hud strong{display:block;font-size:1.08rem;margin-top:2px}.ds354-stage{position:relative;min-height:330px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,#fbfcfd,#f7f8fa);display:grid;place-items:center;padding:18px;overflow:hidden}.ds354-screen{width:min(100%,680px);text-align:center}.ds354-kicker{font-size:.72rem;font-weight:900;letter-spacing:.09em;color:var(--muted);text-transform:uppercase}.ds354-digit{display:grid;place-items:center;min-height:155px;font-size:clamp(4.8rem,15vw,8.5rem);font-weight:900;letter-spacing:-.055em;line-height:1;font-variant-numeric:tabular-nums}.ds354-digit.ready{font-size:clamp(2.25rem,7vw,4.2rem);letter-spacing:-.04em}.ds354-prompt{min-height:26px;color:var(--muted);font-weight:760}.ds354-answer{min-height:55px;margin:12px auto 8px;display:flex;gap:7px;justify-content:center;align-items:center;flex-wrap:wrap}.ds354-answer span{min-width:34px;height:42px;padding:0 8px;border:1px solid var(--line);border-radius:10px;background:white;display:grid;place-items:center;font-size:1.28rem;font-weight:900}.ds354-answer span.empty{color:#a1a7b0;background:transparent;border-style:dashed}.ds354-keypad{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;max-width:520px;margin:12px auto 0}.ds354-keypad button{min-height:48px;border:1px solid var(--line);border-radius:11px;background:white;font:inherit;font-size:1.05rem;font-weight:900;cursor:pointer}.ds354-keypad button:hover{border-color:#aeb6c0}.ds354-keypad button:disabled{opacity:.42;cursor:not-allowed}.ds354-feedback{min-height:32px;margin-top:8px;font-weight:850}.ds354-feedback.good{color:var(--good)}.ds354-feedback.bad{color:var(--bad)}.ds354-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:12px}.ds354-actions .btn{min-width:112px}.ds354-utility{display:flex;justify-content:center;gap:4px;flex-wrap:wrap;margin-top:6px}.ds354-utility button{border:1px solid transparent}.ds354-utility button:hover{border-color:var(--line);background:var(--card)}.ds354-status{margin-top:10px;text-align:center;color:var(--muted);font-size:.88rem;line-height:1.45;min-height:22px}.ds354-progress{height:6px;background:var(--soft);border-radius:999px;overflow:hidden;margin:10px auto 0;max-width:560px}.ds354-progress>span{display:block;height:100%;background:var(--accent);width:0;transition:width .2s ease}.ds354-results{display:none;margin-top:14px;border-top:1px solid var(--line);padding-top:14px}.ds354-results.show{display:block}.ds354-result-head{display:flex;justify-content:space-between;gap:12px;align-items:start}.ds354-result-head h2{margin:0;font-size:1.35rem}.ds354-result-head p{margin:3px 0 0;color:var(--muted)}.ds354-score{font-size:2.4rem;font-weight:930;letter-spacing:-.06em;white-space:nowrap}.ds354-resultgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.ds354-resultgrid>div{border:1px solid var(--line);border-radius:12px;padding:10px}.ds354-resultgrid small{display:block;color:var(--muted);font-size:.68rem;font-weight:800}.ds354-resultgrid strong{display:block;margin-top:2px}.ds354-result-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px}.ds354-review{margin-top:10px}.ds354-review summary,.ds354-more summary,.ds354-legacy summary{cursor:pointer;font-weight:850}.ds354-review-list{display:grid;gap:6px;margin-top:8px}.ds354-review-row{display:grid;grid-template-columns:58px 1fr auto;gap:8px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:8px 10px;font-size:.82rem}.ds354-review-row .seq{font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.ds354-review-row .ok{color:var(--good);font-weight:900}.ds354-review-row .miss{color:var(--bad);font-weight:900}.ds354-more{margin-top:12px;border:1px solid var(--line);border-radius:14px;background:#fafbfc;padding:12px 14px}.ds354-moregrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}.ds354-card{border:1px solid var(--line);border-radius:12px;background:white;padding:11px}.ds354-card h3{margin:0 0 7px;font-size:.9rem}.ds354-settings{display:grid;grid-template-columns:1fr 1fr;gap:7px}.ds354-settings label,.ds354-card>label{display:grid;gap:4px;color:var(--muted);font-size:.72rem;font-weight:800}.ds354-settings select,.ds354-settings input,.ds354-card select,.ds354-card input{width:100%;min-height:40px;border:1px solid var(--line);border-radius:10px;background:white;padding:7px 9px;font:inherit}.ds354-history{display:grid;gap:6px}.ds354-history>div{display:flex;justify-content:space-between;gap:8px;border-bottom:1px solid var(--line);padding-bottom:5px;font-size:.77rem}.ds354-history span{color:var(--muted)}.ds354-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.ds354-guide>div{border:1px solid var(--line);background:var(--card);border-radius:14px;padding:12px}.ds354-guide h2{font-size:.96rem;margin:0 0 4px}.ds354-guide p{margin:0;color:var(--muted);font-size:.82rem;line-height:1.48}.ds354-legacy{margin-top:14px;padding:11px 13px;border:1px solid var(--line);border-radius:14px;background:var(--card)}.ds354-legacy>.legacy-inner{margin-top:12px}.ds354-focus .preview-note,.ds354-focus .topbar,.ds354-focus .gameheader,.ds354-focus .ds354-guide,.ds354-focus .ds354-more,.ds354-focus .ds354-legacy,.ds354-focus .mobile-dock{display:none!important}.ds354-focus .ds354-page{padding-top:14px}.ds354-focus .ds354-product{min-height:calc(100vh - 28px);display:flex;flex-direction:column;justify-content:center}.ds354-paused .ds354-stage:after{content:'PAUSED';position:absolute;inset:0;background:rgba(247,248,250,.96);display:grid;place-items:center;font-size:2.2rem;font-weight:920;letter-spacing:-.04em}.ds354-page~.mobile-dock{display:none!important}
@media(max-width:760px){.ds354-page{padding:22px 0 30px;overflow-x:hidden}.ds354-product{padding:12px}.ds354-toolbar{display:grid;gap:8px}.ds354-tabs,.ds354-order{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;overflow:auto}.ds354-tabs button,.ds354-order button{padding:7px 8px;white-space:nowrap}.ds354-hud{grid-template-columns:repeat(2,1fr)}.ds354-stage{min-height:315px;padding:12px}.ds354-digit{min-height:130px}.ds354-keypad{gap:6px}.ds354-keypad button{min-height:46px}.ds354-resultgrid{grid-template-columns:repeat(2,1fr)}.ds354-moregrid,.ds354-guide{grid-template-columns:1fr}.ds354-review-row{grid-template-columns:50px 1fr}.ds354-review-row>span:last-child{grid-column:2}.ds354-actions .btn{flex:1 1 42%;min-width:0}.ds354-result-actions{display:grid;grid-template-columns:1fr 1fr}.ds354-result-actions .btn:first-child{grid-column:1/-1}}
@media(max-width:420px){.ds354-stage{min-height:285px}.ds354-digit{font-size:4.8rem}.ds354-digit.ready{font-size:2.35rem}.ds354-answer span{min-width:29px;height:38px;font-size:1.1rem;padding:0 6px}.ds354-keypad button{min-height:43px}.ds354-settings{grid-template-columns:1fr}.ds354-score{font-size:2rem}}
@media(prefers-reduced-motion:reduce){.ds354-progress>span{transition:none}}
/* V0.354 mobile first-screen compression: keep the playable loop above secondary copy. */
@media(max-width:760px){
  .ds354-page{padding-top:14px}
  .ds354-page .gameheader{margin-bottom:10px}
  .ds354-page .gameheader .eyebrow{font-size:.66rem;padding:5px 8px;line-height:1.15}
  .ds354-page .gameheader h1{font-size:2.15rem;line-height:.98;margin:7px 0 0}
  .ds354-page .gameheader h1 small{display:inline;font-size:.48em;line-height:1.1;color:var(--muted);font-weight:760;margin-left:4px}
  .ds354-page .gameheader p{display:none}
  .ds354-product{padding:10px}
  .ds354-toolbar{gap:6px;margin-bottom:7px}
  .ds354-tabs,.ds354-order{padding:3px;gap:3px;border-radius:10px}
  .ds354-tabs button,.ds354-order button{min-height:34px;padding:5px 5px;font-size:.73rem}
  .ds354-hud{grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;margin-bottom:7px}
  .ds354-hud>div{padding:6px 6px;border-radius:10px;min-width:0}
  .ds354-hud small{font-size:.58rem;line-height:1.05;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .ds354-hud strong{font-size:.92rem;margin-top:1px}
  .ds354-stage{min-height:248px;padding:9px;border-radius:15px}
  .ds354-kicker{font-size:.61rem}
  .ds354-digit{min-height:88px;font-size:4.3rem}
  .ds354-digit.ready{font-size:2rem;min-height:88px}
  .ds354-prompt{min-height:20px;font-size:.78rem}
  .ds354-answer{min-height:38px;margin:6px auto 3px;gap:5px}
  .ds354-answer span{min-width:27px;height:34px;padding:0 5px;border-radius:8px;font-size:1rem}
  .ds354-keypad{gap:5px;margin-top:6px}
  .ds354-keypad button{min-height:35px;border-radius:9px;font-size:.9rem}
  .ds354-feedback{min-height:22px;margin-top:4px;font-size:.8rem}
  .ds354-progress{margin-top:7px;height:5px}
  .ds354-actions{gap:6px;margin-top:8px;display:grid;grid-template-columns:1fr 1fr}
  .ds354-actions .btn{min-height:40px;padding:8px 7px;font-size:.8rem}
  .ds354-utility{margin-top:4px}
  .ds354-utility button{min-height:32px;padding:5px 7px;font-size:.73rem}
  .ds354-status{margin-top:5px;min-height:18px;font-size:.75rem;line-height:1.3}
  .ds354-more{margin-top:8px;padding:10px 12px}
  .ds354-guide{margin-top:10px}
}
@media(max-width:420px){
  .ds354-stage{min-height:238px}
  .ds354-digit{font-size:4.1rem}
  .ds354-digit.ready{font-size:1.95rem}
}