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var(--ink);cursor:pointer;min-height:52px;transition:transform 90ms var(--ease-out), background-color .1s linear;-webkit-tap-highlight-color:transparent;border-radius:14px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-weight:750;display:inline-flex}.primary-action{background:var(--ink);color:#fff}.secondary-action{background:var(--surface)}.primary-action:active,.secondary-action:active{transform:scale(.97)}.countdown-overlay{z-index:900;padding:max(24px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));pointer-events:auto;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;background:#0000009e;place-items:center;animation:.12s linear both countdown-overlay-in;display:grid;position:fixed;inset:0}.countdown-overlay.is-tap{animation:.48s cubic-bezier(.7,0,.84,0) both 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var(--shadow-card);color:#fff;font-family:var(--font-display);letter-spacing:.01em;cursor:pointer;touch-action:none;-webkit-user-select:none;user-select:none;transition:transform 70ms var(--ease-out), box-shadow 70ms linear, background-color 70ms linear;-webkit-tap-highlight-color:transparent;border:1px solid #292929;border-radius:20px;place-items:center;gap:2px;margin-top:16px;padding:16px;font-size:1.48rem;font-weight:700;display:grid;position:relative;overflow:hidden}.tap-pad:before,.tap-pad:after{content:"";border:1px solid #ffffff1f;border-radius:50%;width:82px;height:82px;position:absolute}.tap-pad:before{top:-40px;left:-25px}.tap-pad:after{bottom:-44px;right:-27px}.tap-pad>svg,.tap-pad>.tap-pad__label,.tap-pad>.tap-pad__hint{z-index:1;position:relative}.tap-pad__feedback{--tap-feedback-color:var(--tap-good);z-index:2;border-radius:inherit;background:color-mix(in oklch, var(--tap-feedback-color) 6%, transparent);box-shadow:inset 0 0 42px color-mix(in oklch, 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auto;place-content:center;column-gap:8px;min-height:88px;font-size:1.28rem}.play-screen>.tap-pad{width:100%;min-height:clamp(7.75rem,14vw,9rem);font-size:clamp(1.28rem,2vw,1.55rem)}.play-screen>.audio-help-link{margin-top:10px}.tap-pad__hint{color:#aaa;font-family:var(--font-body);font-size:.7rem;font-weight:650}.tap-pad--compact .tap-pad__hint{grid-column:1/-1}.audio-help-link{min-height:42px;color:var(--muted);cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;gap:6px;margin:2px auto 0;padding:0 10px;font-size:.74rem;font-weight:700;display:flex}.score-panel{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface);animation:score-in .32s var(--ease-out) both;grid-template-columns:auto 1fr;align-items:center;gap:14px;margin-top:16px;padding:15px;display:grid;position:relative}.score-panel.is-pass{background:var(--green-soft);border-color:#a3d9a6}.score-panel__number{text-align:center;min-width:64px;display:grid}.score-panel__number strong{font-family:var(--font-display);font-size:2.2rem;line-height:.9}.score-panel__number span,.score-panel p{color:var(--muted);font-size:.72rem}.score-panel h2{font-family:var(--font-display);margin:0;font-size:1.35rem;line-height:1}.score-panel p{margin:4px 0 0;line-height:1.3}.score-panel__check{color:var(--green-dark);position:absolute;top:8px;right:8px}.tutorial-completion{scroll-margin-block-end:calc(88px + env(safe-area-inset-bottom))}.lesson-nav{justify-content:space-between;align-items:center;gap:8px;margin-top:24px;display:flex}.lesson-nav button{cursor:pointer;background:0 0;border:0;align-items:center;gap:2px;min-height:44px;padding:0 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auto;align-items:center;gap:10px;padding:7px 7px 7px 14px;font-size:.8rem;display:grid;position:fixed;left:12px}.undo-toast button{color:#fff;cursor:pointer;background:#222;border:1px solid #555;border-radius:11px;min-height:42px;padding:0 12px;font-weight:750}.undo-toast .undo-toast__close{background:0 0;border-color:#0000;width:42px;padding:0}.bottom-nav{z-index:300;padding:5px max(14px, env(safe-area-inset-right)) max(5px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));-webkit-backdrop-filter:blur(22px)saturate(1.6);background:#fffffff0;border-top:1px solid #0000001f;grid-template-columns:repeat(3,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.bottom-nav button{min-height:58px;color:var(--muted);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:0;align-content:center;place-items:center;gap:2px;font-size:.66rem;font-weight:700;display:grid;position:relative}.bottom-nav button:before{z-index:-1;content:"";width:44px;height:30px;transition:background-color .13s linear, transform .13s var(--ease-out);background:0 0;border-radius:15px;position:absolute;top:5px}.bottom-nav button svg{z-index:1;position:relative}.bottom-nav button.is-active{color:var(--ink)}.bottom-nav button.is-active:before{background:var(--yellow)}@keyframes enter{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes sheet-in{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes modal-fade{0%{opacity:0}to{opacity:1}}@keyframes countdown-overlay-in{0%{opacity:0}to{opacity:1}}@keyframes countdown-overlay-out{0%,72%{opacity:1}to{opacity:0}}@keyframes countdown-step-in{0%{opacity:.22;transform:scale(.82)translateZ(0)}to{opacity:1;transform:scale(1)translateZ(0)}}@keyframes countdown-tap{0%{opacity:.9;transform:scale(.92)translateZ(0)}32%,72%{opacity:1;transform:scale(1)translateZ(0)}to{opacity:0;transform:scale(1.06)translateZ(0)}}@keyframes tap-feedback{0%{opacity:0;transform:scale(.975)}18%,64%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.012)}}@keyframes score-in{0%{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}@media (hover:hover){.mode-choice:hover{border-color:var(--ink)}.mode-choice:hover .mode-choice__arrow{transform:translate(4px)}.rhythm-card:hover{transform:translateY(-2px);box-shadow:0 3px #232323,0 9px 20px #00000024}.rhythm-card:active:hover{transform:translateY(2px)scale(.97)}.primary-action:hover,.install-button:hover{background:#252525}.secondary-action:hover,.lane-actions button:hover,.lane-feedback button:hover{background:var(--surface-2)}}@media (width<=699px),(hover:none) and (pointer:coarse){.tap-pad__hint{display:none}.tap-pad--compact{grid-template-columns:auto auto}}@media (width<=399px){.transport{grid-template-columns:50px minmax(120px,1fr) 48px 48px;gap:5px;padding:6px}.tempo-control{grid-template-columns:30px minmax(54px,1fr) 30px}.tempo-control label>span{display:none}.tempo-control label{grid-template-columns:1fr}.tempo-control strong{text-align:center}.lane-actions button{width:42px;padding:0;font-size:0}}@media (width>=700px){.app-header{padding-right:max(28px, env(safe-area-inset-right));padding-left:max(28px, env(safe-area-inset-left))}.home-screen,.tutorial-screen,.play-screen{padding-left:28px;padding-right:28px}.home-screen{padding-top:30px}.mode-choice{grid-template-columns:38px 48px 1fr auto;gap:16px;padding-left:18px;padding-right:18px}.mode-choice__icon{width:48px;height:48px}.tutorial-phrase{grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-flow:row;overflow:visible}.deck-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:22px 14px}.play-lane__scroll{grid-auto-columns:minmax(136px,160px)}.bottom-nav{border:1px solid #0000001f;border-bottom:0;border-radius:20px 20px 0 0;width:390px;left:auto;right:50%;translate:50%}.undo-toast{width:min(560px,100vw - 32px);left:auto;right:50%;translate:50%}.native-modal{align-items:center}}@media (width>=980px){.deck-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.transport{grid-template-columns:64px 1fr 64px 64px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}