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.off{color:var(--border)}.heard{display:flex;flex-wrap:wrap;gap:.35rem;font-family:var(--serif);font-weight:700;letter-spacing:-.03em;font-size:1.35rem}.heard-ok{color:var(--text)}.heard-bad{background:var(--bad-soft);color:var(--bad);border-radius:4px;padding:0 .15em}html{-webkit-text-size-adjust:100%}button,a{-webkit-tap-highlight-color:transparent;touch-action:manipulation}.topbar{padding-top:max(.75rem,env(safe-area-inset-top))}.btn{min-height:44px}.btn-sm{min-height:36px}@media(max-width:720px){h1{font-size:1.65rem}.card{padding:1.1rem;border-radius:18px}.continue{padding:1.4rem;border-radius:24px;gap:1.25rem}.continue-title{font-size:2.4rem}.continue .btn{align-self:stretch;justify-content:space-between}.home-top,.home-side{gap:1rem}.units{grid-template-columns:1fr}.page-head .segmented{width:100%}.page-head .segmented button{flex:1}.stats{grid-template-columns:1fr 1fr;gap:.6rem}.stat-value{font-size:2rem}.grid-table{grid-template-columns:minmax(120px,1fr) repeat(4,38px);gap:4px}.grid-unit{font-size:.85rem}.session-list li{grid-template-columns:1fr auto auto}.session-list li>span:nth-child(2){display:none}.lesson-intro{margin:0;padding:1.5rem 1.1rem}.login-card{padding:1.75rem 1.25rem}.in-lesson .nav{display:none}.in-lesson .main{padding-bottom:1rem}.player{min-height:calc(100dvh - 90px)}.player .exercise{flex:1;border:none;padding:.5rem .25rem;background:transparent}.exercise-instruction{font-size:1.4rem}.exercise-actions{position:sticky;bottom:0;margin:auto -.25rem 0;padding:.75rem .25rem calc(.75rem + env(safe-area-inset-bottom));background:var(--bg);flex-direction:column-reverse;gap:.5rem}.audio-row .audio-btn:not(.audio-btn-slow){width:108px;height:108px}.mic{width:108px;height:108px}.token{padding:.6rem .95rem}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}