:root{color:#29242f;font-synthesis:none;text-rendering:optimizelegibility;background:#fff9f2;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}*{box-sizing:border-box}html,body,#root{width:100%;min-height:100%}html,body{overscroll-behavior-x:none;overflow:hidden auto}#root{min-height:100dvh}body{touch-action:manipulation;background:radial-gradient(circle at 85% 10%,#eee6ff 0 10%,#0000 30%),radial-gradient(circle at 10% 90%,#ffe9cb 0 8%,#0000 28%),#fff9f2;min-width:320px;min-height:100dvh;margin:0}button,input{font:inherit}button{min-height:48px}.app-shell{width:min(100% - 32px,1040px);padding:env(safe-area-inset-top) 0 calc(32px + env(safe-area-inset-bottom));min-height:100dvh;margin:0 auto}.topbar{justify-content:space-between;align-items:center;min-height:76px;display:flex}.brand{color:inherit;align-items:center;gap:10px;font-weight:850;text-decoration:none;display:flex}.brand-mark{color:#fff;background:#6750a4;border-radius:14px;place-items:center;width:42px;height:42px;display:grid;box-shadow:0 8px 18px #6750a433}.parent-entry{color:#635b68;background:#ffffffb8;border:0;border-radius:999px;padding:0 18px}.welcome{grid-template-columns:1fr auto;align-items:end;gap:24px;padding:52px 0 38px;display:grid}.welcome>:not(.welcome-new){display:none}.welcome-new{min-width:0}.welcome-title-row{width:min(100%,760px);position:relative}.welcome-title-row h1{padding-right:152px}.kicker,.eyebrow{color:#6750a4;letter-spacing:.08em;text-transform:uppercase;margin:0 0 10px;font-size:.8rem;font-weight:800}h1{letter-spacing:-.055em;max-width:720px;margin:0;font-size:clamp(2.5rem,7vw,5.2rem);line-height:1.03}.welcome-copy{color:#665f69;max-width:560px;font-size:clamp(1rem,2vw,1.2rem);line-height:1.7}.streak{aspect-ratio:1;background:#fff;border:1px solid #e8ddf3;border-radius:50%;align-content:center;place-items:center;width:116px;display:grid;box-shadow:0 18px 40px #5c416013}.welcome-title-row .streak{position:absolute;top:50%;right:0;transform:translateY(-50%)}.streak span{color:#ff9a3c}.streak strong{font-size:2rem;line-height:1}.streak small{color:#777078;margin-top:5px}.actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.action-card{border-radius:32px;flex-direction:column;min-height:300px;padding:clamp(24px,4vw,38px);display:flex;overflow:hidden;box-shadow:0 18px 50px #493e5610}.action-card--purple{background:#ece4ff}.action-card--orange{background:#ffe8c9}.action-card--blue{background:#ddf2ff}.action-card--green{background:#e4f8dd}.action-card--orange .eyebrow{color:#9b560f}.action-card--blue .eyebrow{color:#16617f}.action-card--green .eyebrow{color:#2f6d2b}.action-card h2{letter-spacing:-.04em;margin:0;font-size:clamp(1.8rem,4vw,2.8rem)}.action-card p{color:#5d5661;line-height:1.65}.action-card button{color:#fff;background:#6750a4;border:0;border-radius:16px;align-self:flex-start;margin-top:auto;padding:0 22px}.action-card--orange button{background:#a85b12}.dictionary-screen{grid-template-rows:auto auto minmax(0,1fr);grid-template-columns:minmax(240px,.72fr) minmax(420px,1.28fr);align-items:stretch;gap:16px;min-height:100dvh;padding:18px 0 34px;display:grid}.dictionary-screen .challenge-lobby-top{grid-column:1/-1}.dictionary-hero,.dictionary-panel,.dictionary-history{background:#fff;border-radius:28px;min-width:0;box-shadow:0 20px 60px #4a405014}.dictionary-hero{background:linear-gradient(145deg,#e6f7ff,#fff);align-content:center;padding:clamp(20px,3.6vw,34px);display:grid}.dictionary-hero h1{color:#15516c;font-size:clamp(2.4rem,7vw,4.6rem)}.dictionary-hero p:not(.kicker){color:#5d6670;line-height:1.65}.dictionary-panel{align-content:start;gap:14px;padding:clamp(18px,3vw,28px);display:grid}.dictionary-panel>h2,.dictionary-history h2{color:#253142;margin:0;font-size:clamp(1.4rem,3.4vw,2rem)}.dictionary-form{grid-template-columns:minmax(0,1fr) auto;gap:10px;display:grid}.dictionary-form input{color:#253142;background:#fbfdff;border:2px solid #d9e6ee;border-radius:16px;min-width:0;height:52px;padding:0 16px;font-size:1.1rem;font-weight:750}.dictionary-form .primary-button{white-space:nowrap;min-width:96px;padding:0 20px}.dictionary-result{background:#f5fbff;border:2px solid #d9eefa;border-radius:22px;gap:10px;padding:18px;display:grid}.dictionary-word-row{justify-content:space-between;align-items:center;gap:14px;display:flex}.dictionary-word-row h2{color:#15516c;letter-spacing:-.04em;margin:0;font-size:clamp(2rem,6vw,3.5rem)}.dictionary-result p{color:#4e5864;margin:0;line-height:1.65}.dictionary-meaning{background:#fff;border-radius:16px;padding:12px 14px;font-size:1.1rem}.dictionary-definitions{gap:6px;display:grid}.dictionary-message{color:#8a4a15;margin:0;font-weight:750}.dictionary-history{grid-column:1/-1;padding:clamp(16px,3vw,24px)}.dictionary-section-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.dictionary-section-heading button{color:#6750a4;background:#eee8ff;border:0;border-radius:999px;min-height:38px;padding:0 14px;font-weight:850}.dictionary-history-list{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;display:grid}.dictionary-history-list button{color:#263342;text-align:left;background:#fbfdff;border:1px solid #dce8ef;border-radius:16px;min-width:0;min-height:64px;padding:10px 12px}.dictionary-history-list strong,.dictionary-history-list span{text-overflow:ellipsis;white-space:nowrap;min-width:0;display:block;overflow:hidden}.dictionary-history-list span{color:#667281;margin-top:3px;font-size:.86rem}.dictionary-empty{color:#667281;margin:0}.action-card--blue button{background:#167299}.action-card--green button{background:#377d32}.action-card button:disabled{cursor:not-allowed;opacity:.78}.coming-soon{color:#766f78;margin-top:8px;font-size:.78rem}.today{background:#ffffffc9;border:1px solid #eee6e0;border-radius:24px;justify-content:space-between;align-items:center;gap:20px;margin-top:20px;padding:24px clamp(22px,4vw,34px);display:flex}.unit-picker{background:#ffffffc9;border:1px solid #eee6e0;border-radius:24px;margin-top:20px;padding:24px clamp(22px,4vw,34px)}.unit-picker h2{margin:0}.unit-picker-layout{gap:14px;margin-top:18px;display:grid}.book-tabs{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;display:grid}.book-tab,.unit-choice{color:#4a444d;background:#fff;border:2px solid #e6dde8;min-height:44px}.book-tab{white-space:nowrap;border-radius:13px;padding:10px 4px;font-weight:800}.book-tab--active{color:#fff;background:#6750a4;border-color:#6750a4}.unit-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.unit-choice{text-align:center;border-radius:14px;align-content:center;gap:4px;min-width:0;min-height:66px;padding:9px 6px;display:grid}.unit-choice strong{color:inherit;font-size:.9rem}.unit-choice span{color:#777078;text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:.72rem;line-height:1.25;overflow:hidden}.unit-choice--active{color:#6750a4;background:#eee8ff;border-color:#6750a4;box-shadow:inset 0 0 0 1px #6750a4}.unit-choice--active span{color:#6750a4}.book-tab:disabled,.unit-choice:disabled{cursor:not-allowed;opacity:.68}.unit-picker-lock{color:#654e20;background:#fff3cf;border-radius:12px;margin:14px 0 0;padding:10px 13px;font-weight:750}.unit-picker-empty{color:#766f78;text-align:center;background:#f7f3f8;border-radius:14px;grid-column:1/-1;margin:0;padding:24px}.ios-install-hint{background:#f4efff;border:1px solid #d9cfee;border-radius:20px;justify-content:space-between;align-items:center;gap:22px;margin-top:20px;padding:20px;display:flex}.ios-install-hint h2{margin:0}.ios-install-steps{color:#5f5767;margin:12px 0 0;padding-left:22px;line-height:1.65}.ios-install-dismiss{color:#fff;white-space:nowrap;background:#6750a4;border:0;border-radius:14px;min-width:96px;min-height:44px;padding:0 18px;font-weight:800}.today h2{margin:0;font-size:clamp(1rem,3vw,1.35rem)}.status-pill{color:#6750a4;white-space:nowrap;background:#eee7ff;border-radius:999px;padding:8px 13px;font-weight:750}.practice-screen,.result-screen{min-height:100vh;padding:28px 0}.challenge-screen{min-height:100vh;padding:28px 0 48px}.challenge-intro{color:#665f69;max-width:620px;font-size:1.08rem;line-height:1.7}.challenge-lobby{grid-template-rows:auto 1fr;grid-template-columns:minmax(190px,.68fr) minmax(330px,1.12fr) minmax(230px,.78fr);align-items:stretch;gap:14px;display:grid}.challenge-lobby-top{grid-column:1/-1;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;display:grid}.challenge-lobby-top strong{color:#3f3547;font-size:clamp(1.15rem,3.2vw,1.65rem)}.challenge-lobby-top span{color:#9b3d23;white-space:nowrap;background:#ffe6df;border-radius:999px;padding:7px 12px;font-size:.92rem;font-weight:850}.challenge-lobby-hero,.challenge-lobby-levels,.challenge-lobby-side{background:#fff;border-radius:28px;min-width:0;padding:clamp(16px,2.6vw,26px);box-shadow:0 20px 60px #4a405014}.challenge-lobby-hero{background:linear-gradient(145deg,#fff8df,#fff);align-content:center;gap:10px;display:grid}.challenge-lobby-hero h1{color:#4a2b08;letter-spacing:-.06em;margin:0;font-size:clamp(2rem,6vw,3.6rem);line-height:1}.challenge-lobby-hero p:not(.kicker){color:#665f69;margin:0;font-size:clamp(.95rem,2.5vw,1.1rem);line-height:1.55}.challenge-lobby-levels{align-content:center;display:grid}.challenge-lobby-levels h2{color:#463950;margin:0 0 12px;font-size:clamp(1.1rem,3vw,1.45rem)}.challenge-lobby-side{align-content:center;gap:12px;display:grid}.level-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:32px;display:grid}.level-grid button{color:#713d0e;text-align:left;background:#fff0dc;border:2px solid #edd7bd;border-radius:24px;align-content:center;gap:8px;min-height:120px;padding:22px;display:grid}.level-grid strong{font-size:1.35rem}.level-grid span{color:#7c6d60}.level-grid .custom-level{color:#59418f;background:#eee8ff;border-color:#bba9df;grid-column:1/-1}.range-picker{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:30px 0 18px;display:grid}.range-picker fieldset{background:#fff;border:2px solid #e3d9ea;border-radius:22px;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:0;padding:20px;display:grid}.range-picker legend{color:#6750a4;padding:0 8px;font-weight:850}.range-picker label{color:#665f69;gap:7px;font-size:.86rem;font-weight:750;display:grid}.range-picker select{color:#3f3943;width:100%;min-height:48px;font:inherit;background:#fff;border:1px solid #d8cedf;border-radius:13px;padding:0 12px}.range-summary{color:#4f4260;background:#eee8ff;border-radius:14px;width:fit-content;padding:12px 16px}.range-error{color:#9b3124;font-weight:750}.mistake-bank-entry{color:#713725;text-align:left;background:#fff0e9;border:2px solid #f0c7b8;border-radius:22px;justify-content:space-between;align-items:center;gap:18px;width:100%;margin-top:24px;padding:20px 22px;display:flex}.mistake-bank-entry span{gap:5px;display:grid}.mistake-bank-entry strong{font-size:1.18rem}.mistake-bank-entry small{color:#7c675f}.mistake-bank-entry b{color:#fff;white-space:nowrap;background:#a94e35;border-radius:999px;padding:8px 12px}.mistake-bank-heading{justify-content:space-between;align-items:center;gap:20px;margin:24px 0 16px;display:flex}.mistake-bank-heading .primary-button{width:auto;padding:0 22px}.mistake-bank-empty{color:#56505a;text-align:center;background:#fff;border-radius:24px;margin-top:28px;padding:34px}.mistake-bank-empty strong{font-size:1.25rem}.mistake-word-list{gap:12px;display:grid}.mistake-word-list article{background:#fff;border:1px solid #eadfe8;border-radius:18px;justify-content:space-between;align-items:center;gap:20px;padding:18px 20px;display:flex}.mistake-word-list article>div{gap:5px;display:grid}.mistake-word-list article>div:last-child{color:#746b76;text-align:right;font-size:.84rem}.mistake-word-list strong{color:#55416f;font-size:1.25rem}.challenge-topbar{grid-template-columns:auto 1fr auto;align-items:center;gap:16px;display:grid}.challenge-topbar strong{font-size:1.15rem}.challenge-topbar span{color:#9b3d23;background:#ffe6df;border-radius:999px;padding:8px 13px;font-weight:800}.challenge-card h1{font-size:clamp(2.7rem,9vw,5.5rem)}.challenge-screen--landscape{padding-bottom:calc(22px + env(safe-area-inset-bottom))}.challenge-card--landscape{text-align:left;grid-template-columns:minmax(260px,.85fr) minmax(440px,1.15fr);align-items:center;gap:clamp(22px,4vw,48px);width:min(100%,1120px);display:grid}.challenge-card--landscape h1{margin:18px 0;font-size:clamp(3rem,11vh,5.4rem)}.challenge-prompt-panel{text-align:center;min-width:0}.challenge-keyboard-panel{min-width:0;border:0;min-inline-size:0;margin:0;padding:0}.challenge-keyboard-panel .virtual-keyboard{margin-top:0}.challenge-keyboard-panel .feedback{margin-top:14px}.daily-spelling-card .challenge-keyboard-panel{width:100%}.success-dialog-backdrop{z-index:90;padding:max(14px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(14px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#271e342e;place-items:center;display:grid;position:fixed;inset:0}.success-dialog{text-align:center;background:linear-gradient(145deg,#fffdf5,#fff1c6);border:3px solid #ffe18f;border-radius:30px;align-content:center;justify-items:center;gap:8px;width:min(86vw,360px);min-height:210px;padding:28px 26px 24px;animation:.42s cubic-bezier(.18,1.35,.32,1) both success-pop;display:grid;position:relative;overflow:hidden;box-shadow:0 26px 80px #4a305c55,inset 0 0 0 7px #ffffff80}.success-dialog h2{z-index:1;color:#6b3a00;margin:0;font-size:clamp(2rem,8vh,3rem);line-height:1;position:relative}.success-dialog .kicker{z-index:1;color:#9b5a00;margin:0;position:relative}.success-dialog button{z-index:1;color:#fff;background:#6750a4;border:0;border-radius:999px;min-height:48px;margin-top:6px;padding:0 30px;font-weight:900;position:relative;box-shadow:0 5px #4f3c7a}.success-dialog button:active{transform:translateY(2px);box-shadow:0 3px #4f3c7a}.success-star{z-index:1;color:#fff;text-shadow:0 2px #d97d00;background:#ffb703;border-radius:999px;place-items:center;width:58px;height:58px;font-size:2.3rem;animation:.62s cubic-bezier(.2,1.35,.35,1) both success-star-bounce;display:grid;position:relative;box-shadow:0 8px #df8f00}.success-fireworks{pointer-events:none;position:absolute;inset:0}.success-fireworks span{--angle:0deg;--distance:86px;background:#ff6b6b;border-radius:999px;width:10px;height:10px;animation:.78s ease-out .12s both success-firework;position:absolute;top:42%;left:50%;transform:translate(-50%,-50%)scale(.2)}.success-fireworks span:nth-child(2){--angle:30deg;background:#ffd166}.success-fireworks span:nth-child(3){--angle:60deg;background:#06d6a0}.success-fireworks span:nth-child(4){--angle:90deg;background:#4cc9f0}.success-fireworks span:nth-child(5){--angle:120deg;background:#c77dff}.success-fireworks span:nth-child(6){--angle:150deg;background:#ff8fab}.success-fireworks span:nth-child(7){--angle:180deg;background:#ffb703}.success-fireworks span:nth-child(8){--angle:210deg;background:#90be6d}.success-fireworks span:nth-child(9){--angle:240deg;background:#577590}.success-fireworks span:nth-child(10){--angle:270deg;background:#f3722c}.success-fireworks span:nth-child(11){--angle:300deg;background:#43aa8b}.success-fireworks span:nth-child(12){--angle:330deg;background:#f72585}@keyframes success-pop{0%{opacity:0;transform:translateY(18px)scale(.82)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes success-star-bounce{0%{transform:scale(.2)rotate(-20deg)}65%{transform:scale(1.14)rotate(8deg)}to{transform:scale(1)rotate(0)}}@keyframes success-firework{0%{opacity:0;transform:translate(-50%, -50%) rotate(var(--angle)) translateY(0) scale(.2)}25%{opacity:1}to{opacity:0;transform:translate(-50%, -50%) rotate(var(--angle)) translateY(calc(var(--distance) * -1)) scale(1)}}.challenge-result{align-content:center;justify-items:start;max-width:720px;margin:auto;display:grid}.challenge-result p{color:#665f69;font-size:1.1rem;line-height:1.7}.feedback button{color:#fff;background:#6750a4;border:0;border-radius:12px;margin-top:12px;padding:0 18px}.listening-lobby{grid-template-rows:auto 1fr;grid-template-columns:minmax(260px,.82fr) minmax(420px,1.18fr);align-items:stretch;gap:16px;display:grid}.listening-lobby .challenge-lobby-top{grid-column:1/-1}.listening-hero,.listening-unit-picker{background:#fff;border-radius:28px;min-width:0;padding:clamp(18px,3vw,28px);box-shadow:0 20px 60px #4a405014}.listening-hero{background:linear-gradient(145deg,#e4f5ff,#fff);align-content:center;display:grid}.listening-hero h1{color:#144960;font-size:clamp(2.4rem,8vw,4.8rem)}.listening-start-button{width:100%;margin-top:18px}.listening-unit-picker .unit-picker-layout{grid-template-columns:1fr;gap:10px}.listening-unit-picker .book-tabs,.listening-unit-picker .unit-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.listening-card .listening-prompt-panel h1{font-size:clamp(2.6rem,10vh,4.8rem)}.listening-tip{color:#665f69;line-height:1.65}.listening-mistake-note{color:#8a3b2b;margin:10px 0 0;font-weight:750}.practice-setup{grid-template-rows:auto 1fr;grid-template-columns:minmax(240px,.78fr) minmax(420px,1.22fr);align-items:stretch;gap:18px;min-height:100dvh;padding:24px 0 40px;display:grid}.practice-setup .challenge-lobby-top{grid-column:1/-1}.practice-setup-hero,.practice-setup-picker{background:#fff;border-radius:28px;min-width:0;box-shadow:0 20px 60px #4a405014}.practice-setup-hero{background:linear-gradient(145deg,#f1e9ff,#fff);align-content:center;padding:clamp(20px,3.6vw,34px);display:grid}.practice-setup-hero h1{color:#4f327d;font-size:clamp(2.6rem,8vw,4.8rem)}.practice-setup-hero p:not(.kicker){color:#665f69;line-height:1.65}.practice-setup-picker{gap:14px;margin-top:0;display:grid}.practice-setup-picker .unit-picker-layout{margin-top:0}.practice-setup-summary{justify-content:space-between;align-items:center;gap:14px;padding-top:4px;display:flex}.practice-setup-summary span{color:#5f5767;overflow-wrap:anywhere;min-width:0;font-weight:750}.practice-setup-summary .primary-button{white-space:nowrap;min-width:150px;padding:0 22px}.ket-screen{grid-template-rows:auto 1fr;grid-template-columns:minmax(170px,.26fr) minmax(640px,1fr);gap:14px;min-height:100dvh;padding:18px 0 32px;display:grid}.ket-screen .challenge-lobby-top{grid-column:1/-1}.ket-part-list,.ket-workspace,.ket-paper-panel,.ket-answer-panel{background:#fff;border-radius:26px;min-width:0;box-shadow:0 20px 60px #4a405014}.ket-part-list{background:linear-gradient(160deg,#e9f9e5,#fff);align-content:start;gap:10px;padding:18px;display:grid}.ket-part-list h1{color:#265e24;font-size:clamp(2rem,5vw,3.6rem)}.ket-test-switch{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin:2px 0 8px;display:grid}.ket-test-button{color:#2c5f29;background:#fff;border:2px solid #d2e9ce;border-radius:14px;min-height:42px;font-weight:900}.ket-test-button--active{color:#fff;background:#65a65d;border-color:#65a65d;box-shadow:0 3px #377d32}.ket-part-button{color:#2c5f29;background:#fff;border:2px solid #d2e9ce;border-radius:16px;justify-content:space-between;align-items:center;gap:8px;min-height:58px;padding:0 14px;font-weight:850;display:flex}.ket-part-button--active{color:#fff;background:#377d32;border-color:#377d32}.ket-workspace{grid-template-columns:minmax(360px,1fr) minmax(300px,.52fr);gap:12px;padding:12px;display:grid;overflow:hidden}.ket-paper-panel,.ket-answer-panel{box-shadow:none;border:1px solid #e8efe4}.ket-paper-panel{grid-template-rows:auto minmax(0,1fr);min-height:0;padding:14px;display:grid;overflow:hidden}.ket-panel-heading{justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.ket-panel-heading h2{margin:0;font-size:clamp(1rem,2.6vw,1.3rem)}.ket-panel-heading audio{width:min(100%,320px)}.ket-page-stack{gap:12px;min-height:0;padding-right:4px;display:grid;overflow:auto}.ket-page-stack img{background:#fff;border:1px solid #e5e5e5;border-radius:14px;width:100%;height:auto}.ket-answer-panel{grid-template-rows:auto minmax(0,1fr) auto;gap:12px;min-height:0;padding:14px;display:grid;overflow:hidden}.ket-answer-heading{justify-content:space-between;align-items:center;gap:12px;display:flex}.ket-answer-heading h2{margin:0;font-size:1.2rem}.ket-answer-heading>strong{color:#fff;background:#377d32;border-radius:999px;padding:8px 12px}.ket-answer-list{gap:10px;min-height:0;padding-right:2px;display:grid;overflow:auto}.ket-answer-item{background:#fbfff9;border:2px solid #e1eadf;border-radius:16px;padding:12px}.ket-answer-item--correct{background:#f0ffe9;border-color:#78b96d}.ket-answer-item--wrong{background:#fff4ef;border-color:#efb19c}.ket-answer-title{justify-content:space-between;gap:10px;margin-bottom:10px;display:flex}.ket-answer-title span{color:#7d3a24;font-weight:850}.ket-choice-row{flex-wrap:wrap;gap:8px;display:flex}.ket-choice{color:#35632f;background:#e8f6e4;border:0;border-radius:13px;min-width:48px;min-height:42px;font-weight:900}.ket-choice--active{color:#fff;background:#377d32;box-shadow:0 3px 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h1{padding-right:90px}h1{overflow-wrap:anywhere;font-size:clamp(2.15rem,10vw,2.7rem)}.streak{width:78px}.streak strong{font-size:1.45rem}.streak small{font-size:.68rem}.actions{grid-template-columns:1fr}.action-card{border-radius:26px;min-height:260px}.today{align-items:flex-start}.ios-install-hint{flex-direction:column;align-items:stretch}.ios-install-dismiss{width:100%}.parent-dashboard-header{flex-direction:column;align-items:stretch}.stats-mode-grid,.parent-pin-change{grid-template-columns:1fr}.practice-setup-summary{flex-direction:column;align-items:stretch}.practice-setup-summary .primary-button{width:100%}.ket-screen{grid-template-rows:auto;grid-template-columns:1fr}.ket-screen 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(orientation:portrait){.challenge-card--landscape{text-align:center;grid-template-columns:1fr}.challenge-keyboard-panel .virtual-keyboard{margin-top:20px}.virtual-qwerty-row button{flex-basis:42px;min-width:0}}@media (width>=720px){.unit-picker-layout{grid-template-columns:minmax(132px,.28fr) 1fr;align-items:start;gap:18px}.book-tabs{grid-template-columns:1fr}.unit-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.book-tab{min-height:48px}.unit-choice{min-height:72px;padding-inline:10px}.unit-choice span{font-size:.8rem}}@media (prefers-reduced-motion:no-preference){.action-card{transition:transform .2s,box-shadow .2s}.action-card:hover{transform:translateY(-3px);box-shadow:0 22px 55px #493e5618}}@media (prefers-reduced-motion:reduce){.speak-button--playing{background:#ded2ff;animation:none}.speak-button--playing 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