:root{color:#20201d;font-synthesis:none;--cream:#f7f4ee;--paper:#fffdf9;--ink:#20201d;--muted:#797871;--red:#ef6a4c;--green:#347665;--line:#20201d1a;background:#e7e4de;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Noto Sans CJK SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{background:#e7e4de}body{min-width:0;min-height:100vh;margin:0}button,input{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline-offset:3px;outline:3px solid #ef6a4c59}.app-shell{background:var(--cream);width:min(100%,480px);min-height:100svh;margin:0 auto;position:relative;overflow-x:hidden;box-shadow:0 0 70px #28251f1a}.topbar{height:82px;padding:max(18px, env(safe-area-inset-top)) 22px 12px;align-items:center;gap:11px;display:flex}.brand-mark{color:#fff;background:var(--red);border-radius:12px;place-items:center;width:39px;height:39px;font-weight:700;display:grid;transform:rotate(-3deg);box-shadow:0 6px 18px #ef6a4c3d}.brand-copy{flex-direction:column;line-height:1.05;display:flex}.brand-copy strong{font-size:18px}.brand-copy span{color:var(--muted);letter-spacing:.04em;margin-top:5px;font-size:12px}.icon-button{border:1px solid var(--line);width:42px;height:42px;color:var(--ink);background:#ffffff8c;border-radius:14px;place-items:center;margin-left:auto;display:grid}.domain-migration{z-index:30;left:50%;bottom:max(14px, env(safe-area-inset-bottom));color:#fff;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#20201df5;border:1px solid #ffffff21;border-radius:21px;width:min(520px,100% - 28px);padding:16px 42px 16px 17px;position:fixed;transform:translate(-50%);box-shadow:0 18px 55px #20201d4d}.domain-migration>div{min-width:0}.domain-migration .section-kicker{color:#ff9b84}.domain-migration strong{margin-top:3px;font-size:17px;display:block}.domain-migration p{color:#c7c8c3;margin:7px 0 12px;font-size:12px;line-height:1.55}.migration-button{background:var(--red);color:#fff;border:0;border-radius:13px;justify-content:center;align-items:center;gap:7px;min-height:43px;padding:0 15px;font-size:12px;font-weight:800;display:inline-flex}.migration-button:disabled{opacity:.7;cursor:wait}.migration-dismiss{color:#d2d2ce;background:#ffffff14;border:0;border-radius:10px;place-items:center;width:30px;height:30px;padding:0;display:grid;position:absolute;top:10px;right:10px}.home-content{padding:6px 18px max(30px, env(safe-area-inset-bottom))}.hero-card{color:#fffaf4;background:#242823;border-radius:30px;min-height:390px;padding:26px 24px;position:relative;overflow:hidden}.hero-card:after{content:"ñ";color:#ffffff0b;font:italic 220px/1 Playfair Display,serif;position:absolute;bottom:-70px;right:-14px;transform:rotate(-10deg)}.hero-glow{background:var(--red);filter:blur(80px);opacity:.18;border-radius:50%;width:230px;height:230px;position:absolute;top:-80px;right:-100px}.streak-pill{color:#ffb19d;background:#ffffff0f;border:1px solid #ffffff24;border-radius:999px;align-items:center;gap:7px;padding:7px 11px;font-size:12px;font-weight:600;display:inline-flex}.eyebrow,.section-kicker{letter-spacing:.16em;text-transform:uppercase;color:var(--red);font-size:11px;font-weight:700}.hero-card .eyebrow{color:#b6bdb5;margin:37px 0 13px}.hero-card h1{letter-spacing:-.045em;margin:0;font-size:clamp(39px,11vw,52px);line-height:1.06}.hero-card h1 em{color:#ff8266;font-family:Georgia,Times New Roman,serif;font-weight:600}.hero-subtitle{color:#b8bbb5;width:92%;margin:18px 0 24px;font-size:15px;line-height:1.7}.primary-button{background:var(--red);color:#fff;border:0;border-radius:17px;justify-content:center;align-items:center;gap:9px;width:100%;min-height:54px;padding:0 19px;font-size:15px;font-weight:700;display:flex;box-shadow:0 9px 24px #ef6a4c38}.hero-card .primary-button{z-index:1;width:auto;min-width:174px;position:relative}.primary-button:disabled{color:#9c9992;box-shadow:none;background:#d8d3ca}.daily-row{border:0;border-bottom:1px solid var(--line);width:calc(100% - 4px);color:inherit;text-align:left;background:0 0;justify-content:space-between;align-items:center;margin:17px 2px 28px;padding:8px 4px 22px;display:flex}.daily-row>div:first-child{flex-direction:column;gap:7px;display:flex}.daily-row strong{letter-spacing:-.04em;font-size:29px}.daily-row small{color:var(--muted);letter-spacing:0;font-size:13px;font-weight:500}.daily-hint{color:var(--muted);font-size:11px;font-weight:600}.mini-ring{--percent:0deg;background:conic-gradient(var(--green) var(--percent), #ddd9d0 0);border-radius:50%;place-items:center;width:58px;height:58px;display:grid;position:relative}.mini-ring:before{content:"";background:var(--cream);border-radius:50%;position:absolute;inset:5px}.mini-ring span{z-index:1;font-size:10px;font-weight:700}.section-heading{justify-content:space-between;align-items:end;margin:0 3px 15px;display:flex}.section-heading h2{letter-spacing:-.035em;margin:5px 0 0;font-size:25px}.section-heading button{color:var(--muted);background:0 0;border:0;font-size:13px}.course-filters{gap:7px;margin:-2px 2px 14px;display:grid}.course-filters>div{scrollbar-width:none;align-items:center;gap:5px;display:flex;overflow-x:auto}.course-filters>div::-webkit-scrollbar{display:none}.course-filters span{color:var(--muted);flex:0 0 35px;font-size:11px;font-weight:700}.course-filters button{border:1px solid var(--line);color:#77746d;background:#ffffff8f;border-radius:99px;flex:none;height:31px;padding:0 11px;font-size:11px;font-weight:700}.course-filters button.active{border-color:var(--red);color:#d95036;background:#fff0eb}.primary-filters{margin-bottom:13px}.level-paths{grid-template-columns:minmax(0,1fr);gap:10px;min-width:0;display:grid}.level-path-card{border:1px solid var(--line);background:#ffffffb3;border-radius:20px;min-width:0;padding:15px;box-shadow:0 6px 20px #3d362c09}.level-path-heading{grid-template-columns:44px minmax(0,1fr) auto;align-items:center;gap:11px;display:grid}.level-path-heading>span{color:#fff;background:#29332d;border-radius:14px;place-items:center;width:44px;height:44px;font-size:14px;font-weight:800;display:grid}.level-path-heading>div{flex-direction:column;min-width:0;display:flex}.level-path-heading small{color:var(--muted);font-size:10px;font-weight:700}.level-path-heading strong{margin-top:2px;font-size:18px}.level-path-heading>b{color:var(--green);font-size:16px}.level-progress{background:#e4e0d7;border-radius:99px;height:6px;margin:13px 0 8px;overflow:hidden}.level-progress span{border-radius:inherit;background:var(--green);height:100%;transition:width .25s;display:block}.level-path-card p{color:var(--muted);margin:0 0 11px;font-size:10px;line-height:1.5}.level-path-card>button{width:100%;min-height:39px;color:var(--green);background:#e5efea;border:0;border-radius:12px;justify-content:space-between;align-items:center;padding:0 13px;font-size:12px;font-weight:800;display:flex}.theme-browser{border:1px solid var(--line);background:#ffffff6b;border-radius:18px;margin-top:12px;overflow:hidden}.theme-browser>summary{cursor:pointer;min-height:52px;color:var(--ink);align-items:center;gap:9px;padding:0 14px;list-style:none;display:flex}.theme-browser>summary::-webkit-details-marker{display:none}.theme-browser>summary>span{flex-direction:column;min-width:0;font-size:12px;font-weight:800;display:flex}.theme-browser>summary small{color:var(--muted);margin-top:2px;font-size:9px;font-weight:600}.theme-browser>summary b{color:var(--green);white-space:nowrap;margin-left:auto;font-size:11px}.theme-browser>summary:after{content:"+";color:#706d66;background:#e8e4dc;border-radius:8px;place-items:center;width:24px;height:24px;font-size:16px;font-weight:500;display:grid}.theme-browser[open]>summary{border-bottom:1px solid var(--line)}.theme-browser[open]>summary:after{content:"−"}.theme-browser-content{padding:13px}.theme-filters{margin:0 0 12px}.filter-result{color:var(--muted);margin:-5px 3px 10px;font-size:11px}.lesson-list{grid-template-columns:minmax(0,1fr);gap:10px;min-width:0;display:grid}.lesson-card{border:1px solid var(--line);text-align:left;width:100%;min-width:0;color:var(--ink);background:#ffffffa6;border-radius:20px;align-items:center;padding:15px 14px;display:flex;box-shadow:0 5px 18px #3d362c06}.lesson-card.in-progress{background:#fff8f3;border-color:#ef6a4c70;box-shadow:0 8px 24px #ef6a4c14}.lesson-card.in-progress .lesson-copy small,.lesson-card.in-progress .lesson-meta{color:#c95036}.lesson-card.partial-mastery{background:#f2f7f4;border-color:#34766547}.lesson-card.partial-mastery .lesson-copy small,.lesson-card.partial-mastery .lesson-meta{color:var(--green)}.lesson-number{color:#fff;border-radius:15px;flex:0 0 48px;place-items:center;height:53px;font-size:13px;font-weight:700;display:grid}.lesson-copy{flex-direction:column;flex:1;min-width:0;padding:0 13px;display:flex}.lesson-copy small{color:var(--muted);letter-spacing:.09em;text-transform:uppercase;font-size:10px;font-weight:700}.lesson-copy strong{margin:3px 0;font-size:18px}.lesson-copy>span{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.lesson-meta{text-align:center;flex-direction:column;min-width:32px;display:flex}.lesson-meta b{font-size:17px}.lesson-meta small{color:var(--muted);font-size:10px}.show-more-lessons{width:100%;min-height:46px;color:var(--green);background:#dde8e373;border:1px dashed #3476654d;border-radius:15px;margin-top:11px;font-size:13px;font-weight:800}.show-more-lessons small{color:#7d938b;margin-left:7px;font-size:10px;font-weight:600}.empty-lessons{border:1px dashed var(--line);color:var(--muted);text-align:center;background:#fff6;border-radius:18px;margin:2px 0 12px;padding:23px 16px;font-size:13px}.word-source{color:#8b877f;text-underline-offset:2px;margin:11px 3px 0;font-size:10px;line-height:1.45;text-decoration:underline;display:block}.word-sources{flex-wrap:wrap;gap:0 9px;display:flex}.home-actions{gap:10px;margin:13px 0 24px;display:grid}.mode-card,.mistake-card{border-radius:22px;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;padding:19px 16px;display:grid}.mode-card{background:#dde8e3}.mode-icon{background:var(--green);color:#fff;border-radius:14px;place-items:center;width:44px;height:44px;display:grid}.mistake-card{background:#eee2d8}.mistake-icon{color:#fff;background:#a85d48;border-radius:14px;place-items:center;width:44px;height:44px;display:grid}.mode-card h3,.mistake-card h3{margin:4px 0;font-size:16px}.mode-card p,.mistake-card p{color:#65706a;margin:0;font-size:12px}.mistake-card p{color:#796a61}.mistake-card .resume-main-link{color:#934f3d;text-align:left;text-underline-offset:3px;background:0 0;border:0;margin:7px 0 0;padding:0;font-size:12px;font-weight:700;text-decoration:underline;display:block}.mode-card>button,.mistake-card>button{width:38px;height:38px;color:var(--green);background:#fff9;border:0;border-radius:12px;place-items:center;display:grid}.mistake-card>button{color:#a85d48}.mistake-card>button:disabled{color:#a99d95;opacity:.55}.mistake-card.empty{background:#ebe7df}.review-result{color:#8b503f;background:#f2e4dd;border-radius:14px;max-width:520px;margin:10px auto 18px;padding:12px 15px;font-size:14px;font-weight:700}.review-result.clean{color:#34705f;background:#deebe5}.project-legal{color:#aaa69e;justify-items:center;gap:9px;margin:27px 0 5px;font-size:10px;display:grid}.project-legal a{color:#817d75;text-underline-offset:2px;text-decoration:underline}.learning-guide-links,.project-meta{flex-wrap:wrap;justify-content:center;gap:7px 12px;display:flex}.learning-guide-links a{align-items:center;min-height:24px;font-weight:700;display:inline-flex}.practice-screen{flex-direction:column;min-height:100svh;display:flex}.practice-header{padding:max(15px, env(safe-area-inset-top)) 17px 10px;align-items:center;gap:13px;display:flex}.practice-header .icon-button{flex:none;margin:0}.progress-track{background:#ddd8ce;border-radius:99px;flex:1;height:5px;overflow:hidden}.progress-track span{border-radius:inherit;background:var(--red);height:100%;transition:width .35s;display:block}.counter{color:var(--muted);font-size:12px;font-weight:700}.practice-main{flex:1;padding:8px 16px 132px}.practice-controls{display:contents}.mode-switch{background:#e9e5dc;border-radius:15px;grid-template-columns:repeat(3,1fr);gap:3px;width:100%;padding:4px;display:grid}.mode-switch button{color:#88857e;background:0 0;border:0;border-radius:11px;justify-content:center;align-items:center;gap:5px;height:39px;font-size:13px;font-weight:600;display:flex}.mode-switch button.active{background:var(--paper);color:var(--ink);box-shadow:0 3px 9px #322d2614}.live-stats{border:1px solid var(--line);background:#ffffff94;border-radius:16px;grid-template-columns:repeat(4,1fr);margin-top:10px;padding:10px 7px;display:grid}.live-stats>span{color:var(--muted);border-right:1px solid var(--line);grid-template-columns:auto auto;justify-content:center;align-items:center;column-gap:4px;display:grid}.live-stats>span:last-child{border-right:0}.live-stats b{color:var(--ink);font-size:15px}.live-stats small{color:#99968e;text-align:center;grid-column:1/-1;margin-top:2px;font-size:10px}.practice-options{justify-content:center;gap:7px;margin-top:9px;display:flex}.practice-options button{border:1px solid var(--line);color:#74716a;background:#ffffff8c;border-radius:99px;align-items:center;gap:5px;min-height:31px;padding:0 11px;font-size:11px;font-weight:700;display:inline-flex}.practice-options button.lenient{color:#4f6797;background:#e9edf5;border-color:#4f6fae40}.spelling-rule{border:1px solid var(--line);background:#ffffff80;border-radius:14px;grid-template-columns:35px 1fr;align-items:center;gap:6px;min-height:40px;margin-top:8px;padding:3px 38px 3px 9px;display:grid;position:relative}.rule-heading{text-align:left;flex-direction:column;gap:1px;display:flex}.rule-heading span{color:#57554f;font-size:11px;font-weight:800}.rule-heading small{color:#a09c94;font-size:9px;display:none}.rule-options{background:#e9e5dc;border-radius:10px;grid-template-columns:.8fr 1.35fr;gap:3px;min-width:0;padding:2px;display:grid}.rule-options button{color:#858179;white-space:nowrap;background:0 0;border:0;border-radius:8px;min-width:0;height:28px;padding:0 5px;font-size:11px;font-weight:700}.rule-options button.active{background:var(--paper);color:var(--ink);box-shadow:0 2px 7px #322d2614}.sound-toggle{border:1px solid var(--line);background:var(--paper);width:30px;height:30px;color:var(--green);border-radius:10px;place-items:center;display:grid;position:absolute;right:6px}.word-stage{text-align:center;padding:clamp(50px,10vh,88px) 0 38px}.word-label{color:var(--muted);letter-spacing:.1em;font-size:12px}.word-stage h1{letter-spacing:-.045em;overflow-wrap:anywhere;margin:18px 0 11px;font-size:clamp(42px,13vw,62px);line-height:1.08}.word-stage h1.hidden-word{font-size:clamp(34px,10vw,48px)}.translation{color:var(--muted);margin:12px 0 0;font-size:16px}.sound-button{border:1px solid var(--line);height:35px;color:var(--green);background:#ffffffb3;border-radius:99px;align-items:center;gap:6px;padding:0 12px;display:inline-flex}.sound-button span{font-size:11px;font-weight:800}.answer-panel{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:18px 16px 16px;transition:border-color .2s,box-shadow .2s}.answer-panel.wrong{border-color:#d2493573;box-shadow:0 8px 30px #d2493514}.answer-panel.correct{border-color:#34766566;box-shadow:0 8px 30px #34766514}.answer-panel label{color:var(--muted);margin-bottom:7px;font-size:10px;display:block}.answer-row{position:relative}.answer-row input{width:100%;height:50px;color:var(--ink);letter-spacing:.01em;background:0 0;border:0;border-bottom:2px solid #ded9cf;border-radius:0;outline:none;padding:0 38px 0 0;font-size:25px;font-weight:600}.answer-row input::placeholder{color:#c5c0b7;font-size:18px;font-weight:400}.answer-panel.wrong input{border-color:#d24935}.answer-panel.correct input{border-color:var(--green)}.field-status{color:#fff;border-radius:50%;place-items:center;width:25px;height:25px;display:grid;position:absolute;top:13px;right:4px}.field-status.wrong{background:#d24935}.field-status.correct{background:var(--green)}.accent-strip{scrollbar-width:none;gap:5px;padding-top:12px;display:flex;overflow-x:auto}.accent-strip::-webkit-scrollbar{display:none}.accent-strip button{border:1px solid var(--line);color:#494842;background:#f3f0e9;border-radius:9px;flex:0 0 31px;height:32px;font-weight:600}.feedback{min-height:44px;color:var(--muted);flex-direction:column;margin-top:14px;font-size:11px;line-height:1.5;display:flex}.feedback strong{color:var(--ink);font-size:13px}.feedback small{color:var(--muted)}.feedback em{color:#67645d;background:#f1eee7;border-radius:8px;margin-top:7px;padding:7px 9px;font-style:normal}.answer-panel.wrong .feedback strong{color:#c24130}.answer-panel.correct .feedback strong{color:var(--green)}.practice-footer{z-index:5;width:min(100%,480px);padding:12px 20px max(16px, env(safe-area-inset-bottom));background:linear-gradient(transparent, var(--cream) 20%);position:fixed;bottom:0;left:50%;transform:translate(-50%)}.practice-footer .retry{background:#d24935}.practice-footer .success{background:var(--green);box-shadow:0 9px 24px #34766533}.typing-stage{border:1px solid var(--line);background:var(--paper);text-align:center;cursor:text;border-radius:28px;min-height:350px;margin-top:clamp(20px,4vh,36px);padding:26px 16px 20px;position:relative;box-shadow:0 12px 40px #3630270b}.typing-stage.wrong{border-color:#d2493561;animation:.24s ease-in-out word-shake}.typing-stage.correct{border-color:#34766561}.recall-prompt{color:var(--ink);margin:13px 0 -2px;font-size:23px;font-weight:700}.letter-word{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;flex-wrap:wrap;justify-content:center;align-items:center;gap:9px 1px;min-height:94px;padding:26px 0 17px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;display:flex}.letter-token{flex:none;display:inline-flex}.letter-slot{color:#36352f;min-width:.61em;font-size:clamp(34px,10vw,47px);font-weight:500;line-height:1;transition:color 80ms,transform 80ms;position:relative}.typing-stage.long-target .letter-slot{font-size:clamp(27px,7.6vw,38px)}.letter-slot.space{color:#c7c1b7;width:.52em;min-width:.52em}.letter-slot.correct{color:var(--green);transform:translateY(-1px)}.letter-slot.wrong{color:#d24935}.letter-slot.current:after{content:"";background:var(--red);border-radius:99px;height:2px;animation:1s ease-in-out infinite cursor-pulse;position:absolute;bottom:-7px;left:18%;right:18%}.keyboard-capture{opacity:.01;pointer-events:none;border:0;width:1px;height:1px;padding:0;position:absolute;bottom:0;left:50%}.typing-stage .sound-button{margin-bottom:11px}.typing-stage .translation{margin:0 0 13px}.typing-stage .translation.revealed-meaning{color:#2e6e5d;background:#e7f1ed;border-radius:11px;width:fit-content;max-width:100%;margin:0 auto 13px;padding:8px 13px;font-weight:700;animation:.2s ease-out meaning-in}.typing-stage .translation.revealed-meaning span{color:#83a399;letter-spacing:.08em;margin-right:7px;font-size:11px}.typing-stage .accent-strip{border-top:1px solid var(--line);justify-content:center;margin-top:5px;padding-top:14px}.typing-feedback{min-height:27px;color:var(--muted);justify-content:center;align-items:center;gap:7px;margin-top:14px;font-size:13px;display:flex}.typing-feedback strong{color:inherit}.typing-stage.wrong .typing-feedback{color:#c24130}.typing-stage.correct .typing-feedback{color:var(--green)}.typing-count{color:#69665f;background:#efebe4;border-radius:99px;min-width:37px;padding:4px 8px;font-weight:700}.keyboard-prompt{border:1px solid var(--line);color:#fff;background:#262a25;border-radius:17px;justify-content:center;align-items:center;gap:9px;width:100%;min-height:52px;font-size:14px;font-weight:700;display:flex;box-shadow:0 9px 24px #262a2529}.practice-screen:has(.typing-stage.wrong) .keyboard-prompt{background:#b94332}.practice-screen:has(.typing-stage.correct) .keyboard-prompt{background:var(--green)}@keyframes word-shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}70%{transform:translate(5px)}}@keyframes cursor-pulse{50%{opacity:.25}}@keyframes meaning-in{0%{opacity:0;transform:translateY(4px)}}.completion-screen{text-align:center;place-items:center;min-height:100svh;padding:30px 24px;display:grid}.completion-screen main{width:100%}.completion-burst{background:var(--green);color:#fff;border-radius:40px;flex-direction:column;justify-content:center;align-items:center;width:126px;height:126px;margin:0 auto 33px;display:flex;transform:rotate(-5deg);box-shadow:0 18px 40px #34766538}.completion-burst span{margin-bottom:4px;font:italic 20px Georgia,Times New Roman,serif}.completion-burst.mastered{background:#2f806a;box-shadow:0 18px 44px #2f806a45}.completion-screen h1{letter-spacing:-.045em;margin:8px 0 12px;font-size:40px}.completion-screen>main>p:not(.eyebrow){color:var(--muted);font-size:15px}.result-grid{grid-template-columns:1fr 1fr;gap:10px;margin:34px 0;display:grid}.result-grid div{background:var(--paper);border:1px solid var(--line);border-radius:20px;flex-direction:column;padding:20px 10px;display:flex}.result-grid strong{font-size:29px}.result-grid span{color:var(--muted);margin-top:3px;font-size:12px}.text-button{color:var(--muted);background:0 0;border:0;align-items:center;gap:6px;margin:16px auto 0;font-size:12px;display:flex}.mistake-summary{text-align:left;background:#f0e5df;border-radius:17px;flex-wrap:wrap;align-items:center;gap:7px;margin:-19px 0 28px;padding:13px;display:flex}.mistake-summary>span{color:#9b5b4d;letter-spacing:.1em;width:100%;font-size:11px;font-weight:800}.mistake-summary b{background:#ffffff94;border-radius:9px;padding:6px 9px;font-size:11px}.mistake-summary small{color:#9a6e64;margin-left:5px;font-weight:500}.mastery-result{background:#f1e5df;border-radius:15px;margin:18px 0 0;padding:12px 14px;font-weight:700;line-height:1.55;color:#8d5142!important;font-size:13px!important}.mastery-result.clean{background:#deebe5;color:#2f715f!important}.mastery-steps{grid-template-columns:1fr 1fr;gap:8px;margin-top:18px;display:grid}.mastery-steps span{border:1px solid var(--line);background:var(--paper);color:#aaa59c;text-align:left;border-radius:14px;grid-template-columns:auto 1fr;align-items:center;column-gap:6px;min-width:0;padding:11px 10px;display:grid}.mastery-steps span.passed{color:var(--green);background:#e7f0ec;border-color:#34766538}.mastery-steps svg{grid-row:1/3}.mastery-steps b{color:var(--ink);font-size:13px}.mastery-steps small{color:var(--muted);font-size:10px}.mastery-steps+.mastery-result{margin-top:8px}.next-lesson-preview{text-align:left;background:#e5efea;border:1px solid #34766533;border-radius:17px;flex-direction:column;margin:-13px 0 15px;padding:14px 16px;display:flex}.next-lesson-preview span{color:var(--green);letter-spacing:.12em;font-size:10px;font-weight:800}.next-lesson-preview strong{margin:4px 0 2px;font-size:18px}.next-lesson-preview small{color:var(--muted);font-size:11px}.modal-backdrop{z-index:20;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#1c1b186b;align-items:end;width:min(100%,480px);margin:auto;display:flex;position:fixed;inset:0}.settings-sheet{background:var(--cream);width:100%;max-height:min(92svh,760px);padding:10px 18px max(25px, env(safe-area-inset-bottom));border-radius:28px 28px 0 0;overflow-y:auto;box-shadow:0 -18px 55px #20201d29}.sheet-handle{background:#c7c2b9;border-radius:99px;width:38px;height:4px;margin:0 auto 17px}.sheet-heading{justify-content:space-between;align-items:center;margin-bottom:17px;display:flex}.sheet-heading h2{margin:4px 0 0;font-size:22px}.sheet-heading .icon-button{margin:0}.setting-row{border:1px solid var(--line);background:var(--paper);text-align:left;border-radius:17px;justify-content:space-between;align-items:center;width:100%;margin-top:8px;padding:15px 14px;display:flex}.setting-row>span{flex-direction:column;gap:4px;display:flex}.setting-row strong{font-size:15px}.setting-row small{color:var(--muted);font-size:11px}.setting-row b{color:#625f58;text-align:center;background:#ece8df;border-radius:10px;max-width:134px;padding:7px 10px;font-size:12px}.setting-rate{border:1px solid var(--line);background:var(--paper);border-radius:17px;margin-top:8px;padding:14px}.setting-rate>span{flex-direction:column;gap:4px;display:flex}.setting-rate strong{font-size:15px}.setting-rate>span small{color:var(--muted);font-size:11px}.rate-options{background:#ece8df;border-radius:12px;grid-template-columns:repeat(3,1fr);gap:3px;margin-top:12px;padding:3px;display:grid}.rate-options button{color:#77736c;background:0 0;border:0;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;gap:1px;min-height:42px;font-size:12px;font-weight:800;display:flex}.rate-options button small{font-size:9px;font-weight:600}.rate-options button.active{background:var(--paper);color:var(--green);box-shadow:0 2px 8px #322d2617}.settings-note{color:var(--muted);margin:15px 4px 0;font-size:12px;line-height:1.65}.settings-note b{color:var(--ink)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.sync-box{background:#ffffff8c;border:1px solid #d9d6ce;border-radius:17px;margin-top:14px;padding:14px}.sync-heading{justify-content:space-between;align-items:center;gap:8px;display:flex}.sync-heading>span{color:var(--green);align-items:center;gap:7px;display:flex}.sync-heading strong{color:var(--ink);font-size:14px}.sync-heading small{color:var(--muted);text-align:right;font-size:10px}.sync-code-toggle{border:1px solid var(--line);color:#47453f;background:#f2eee6;border-radius:12px;justify-content:space-between;align-items:center;width:100%;min-height:44px;margin-top:12px;padding:0 12px;display:flex}.sync-code-toggle span{letter-spacing:.04em;font:700 13px ui-monospace,SFMono-Regular,Menlo,monospace}.sync-secret{text-align:center;margin-top:10px}.sync-secret img{background:#fff;border-radius:12px;width:160px;height:160px;padding:5px}.sync-secret p{color:var(--muted);text-align:left;margin:7px 0 0;font-size:10px;line-height:1.55}.sync-actions{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;margin-top:10px;display:grid}.sync-actions button:first-child{grid-column:1/-1}.sync-actions button,.sync-create,.sync-connect button,.sync-secondary-actions button{color:#316d5d;background:#e2ece7;border:0;border-radius:10px;justify-content:center;align-items:center;gap:5px;min-height:40px;padding:0 9px;font-size:10px;font-weight:750;display:inline-flex}.sync-actions button:disabled,.sync-create:disabled,.sync-connect button:disabled{opacity:.55}.sync-secondary-actions{justify-content:space-between;align-items:center;gap:8px;margin-top:8px;display:flex}.sync-secondary-actions button{min-height:34px;color:var(--muted);background:0 0}.sync-secondary-actions button:disabled{opacity:.48}.sync-secondary-actions .danger{color:#9a4f3c}.sync-create{background:var(--green);color:#fff;width:100%;margin-top:12px}.sync-divider{color:#9a968e;align-items:center;gap:8px;margin:12px 0 8px;font-size:9px;display:flex}.sync-divider:before,.sync-divider:after{content:"";background:var(--line);flex:1;height:1px}.sync-connect{grid-template-columns:1fr auto;gap:7px;display:grid}.sync-connect input{border:1px solid var(--line);min-width:0;height:42px;color:var(--ink);text-transform:uppercase;background:#fff;border-radius:10px;padding:0 10px;font-size:12px}.sync-connect input:focus{outline-offset:1px;outline:2px solid #34766540}.sync-message{min-height:15px;color:var(--muted);margin:9px 1px 0;font-size:10px;line-height:1.5}.sync-message.error{color:#a34835}.sync-message.synced{color:#34705f}.legal-box{color:#747069;text-align:left;background:#e9e5dc;border-radius:15px;margin-top:13px;padding:13px}.legal-box strong{color:#4e4b45;font-size:12px}.legal-box p{margin:5px 0 7px;font-size:10px;line-height:1.55}.legal-box a{color:#4f6fae;font-size:11px;font-weight:700}.legal-links{flex-wrap:wrap;gap:8px 13px;display:flex}.daily-goal-sheet{max-width:520px;margin:0 auto}.goal-definition{text-align:left;background:#fff7f2;border:1px solid #ef6a4c2e;border-radius:18px;margin-top:9px;padding:16px}.goal-definition.mastery{background:#e7f0ec;border-color:#34766533}.goal-definition b{color:var(--red);letter-spacing:.12em;font-size:11px;display:block}.goal-definition.mastery b{color:var(--green)}.goal-definition strong{margin-top:5px;font-size:17px;display:block}.goal-definition p{color:var(--muted);margin:7px 0 0;font-size:12px;line-height:1.65}.daily-goal-sheet>.primary-button{margin-top:16px}@media (width>=600px){body{padding:30px 0}.app-shell{border-radius:34px;min-height:calc(100vh - 60px)}.practice-footer{border-radius:0 0 34px 34px;bottom:30px}}@media (height<=700px){.practice-main{padding:4px 20px 104px}.word-stage{padding:13px 0 11px}.word-stage h1{margin:7px 0 5px;font-size:39px}.translation{margin-top:5px}.answer-panel{padding:13px 14px 11px}.answer-row input{height:43px}.accent-strip{padding-top:8px}.feedback{min-height:38px;margin-top:9px}.practice-footer{padding-top:8px}.practice-footer .primary-button{min-height:49px}.typing-stage{min-height:326px;margin-top:14px;padding-top:18px}.letter-word{min-height:78px;padding:17px 0 12px}.letter-slot{font-size:35px}.typing-stage .accent-strip{padding-top:9px}.typing-feedback{margin-top:9px}}@media (width>=820px){body{padding:24px 0}.app-shell{border-radius:32px;width:min(1180px,100% - 48px);min-height:calc(100vh - 48px)}.topbar{gap:13px;height:92px;padding:24px 34px 16px}.brand-mark{width:44px;height:44px;font-size:18px}.brand-copy strong{font-size:18px}.brand-copy span{font-size:11px}.home-content{grid-template-rows:auto 1fr auto auto;grid-template-columns:minmax(360px,.92fr) minmax(430px,1.08fr);align-items:start;gap:20px 28px;padding:12px 34px 32px;display:grid}.hero-card{grid-area:1/1/span 3;min-height:520px;padding:36px 34px}.hero-card:after{font-size:290px;bottom:-90px}.hero-card .eyebrow{margin-top:52px}.hero-card h1{max-width:540px;font-size:clamp(48px,5vw,67px)}.hero-subtitle{max-width:460px;font-size:15px}.hero-card .primary-button{min-width:210px;min-height:58px}.daily-row{border:1px solid var(--line);background:#ffffff8c;border-radius:22px;grid-area:1/2;min-height:104px;margin:0;padding:19px 22px}.course-section{grid-area:2/2;min-width:0}.section-heading h2{font-size:27px}.level-paths{grid-template-columns:repeat(2,minmax(0,1fr))}.level-paths.single .level-path-card{grid-column:1/-1}.lesson-list{scrollbar-width:thin;scrollbar-color:#c9c3b9 transparent;gap:10px;max-height:302px;padding-right:5px;overflow-y:auto}.lesson-card{min-height:88px;padding:16px}.lesson-number{flex-basis:54px;height:58px}.lesson-copy strong{font-size:18px}.lesson-copy>span{font-size:11px}.home-actions{grid-area:3/2;grid-template-columns:minmax(0,1fr);margin-top:0}.home-actions .mode-card,.home-actions .mistake-card{min-height:82px;padding:17px 16px}.mode-card h3,.mistake-card h3{font-size:16px}.mode-card p,.mistake-card p{font-size:11px}.project-legal{grid-area:4/1/auto/-1;margin:2px 0 0;font-size:9px}.practice-header{width:min(940px,100% - 64px);margin:0 auto;padding:25px 0 14px}.practice-main{grid-template-columns:1fr 1fr;align-content:start;gap:12px;width:min(900px,100% - 64px);margin:0 auto;padding:12px 0 136px;display:grid}.mode-switch{grid-column:1}.mode-switch button{height:42px;font-size:12px}.live-stats{grid-column:2;min-height:50px;margin-top:0}.live-stats b{font-size:15px}.spelling-rule{grid-column:1/-1;min-height:58px;margin-top:0;padding-left:15px}.rule-heading span{font-size:10px}.rule-heading small{font-size:8px}.rule-options button{height:35px;font-size:10px}.typing-stage{grid-column:1/-1;min-height:430px;margin-top:8px;padding:38px 36px 25px}.word-label{font-size:11px}.recall-prompt{font-size:27px}.letter-word{min-height:130px;padding:35px 0 22px}.letter-slot{font-size:clamp(46px,5vw,66px)}.typing-stage .accent-strip{gap:8px}.accent-strip button{flex-basis:38px;height:38px}.typing-feedback{font-size:12px}.practice-footer{border-radius:0;width:min(900px,100% - 64px);padding:16px 0 20px;bottom:24px}.keyboard-prompt{max-width:520px;min-height:56px;margin:0 auto}.completion-screen main{max-width:720px}.modal-backdrop{width:min(1180px,100% - 48px)}.domain-migration{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;width:min(720px,100% - 64px);padding:17px 58px 17px 20px;display:grid}.domain-migration p{margin-bottom:0}.migration-button{min-width:174px}.settings-sheet{border-radius:28px 28px 0 0;max-width:520px;margin:0 auto}}@media (width>=820px) and (height<=820px){body{padding:12px 0}.app-shell{min-height:calc(100vh - 24px)}.topbar{height:72px;padding:15px 28px 10px}.home-content{gap:12px 24px;padding:5px 28px 20px}.hero-card{min-height:420px;padding:26px 30px}.hero-card .eyebrow{margin-top:28px}.hero-card h1{font-size:clamp(43px,4.5vw,58px)}.hero-subtitle{margin:13px 0 18px;line-height:1.55}.daily-row{min-height:76px;padding:11px 18px}.mini-ring{width:50px;height:50px}.section-heading{margin-bottom:8px}.section-heading h2{font-size:23px}.course-filters{gap:4px;margin-bottom:8px}.course-filters button{height:24px}.lesson-list{gap:7px;max-height:143px}.lesson-card{min-height:68px;padding:9px 12px}.lesson-number{flex-basis:43px;height:47px}.lesson-copy strong{font-size:15px}.home-actions .mode-card,.home-actions .mistake-card{min-height:66px;padding:10px 12px}.mode-card p,.mistake-card p{display:none}.project-legal{gap:0;font-size:9px;display:grid}.project-meta{display:none}.practice-header{padding-top:13px}.practice-main{padding-top:4px;padding-bottom:94px}.typing-stage{min-height:340px;margin-top:0;padding-top:22px}.letter-word{min-height:90px;padding:20px 0 14px}.letter-slot{font-size:clamp(40px,4.5vw,56px)}.practice-footer{padding:8px 0 12px;bottom:12px}}@media (width>=1024px){body{padding:20px 0}.app-shell{border-radius:30px;width:min(1400px,100% - 40px);min-height:calc(100vh - 40px);font-size:16px}.topbar{height:76px;padding:17px 30px 12px}.brand-mark{width:48px;height:48px;font-size:20px}.brand-copy strong{font-size:21px}.brand-copy span{margin-top:6px;font-size:13px}.home-content{grid-template-rows:minmax(0,1fr) auto auto;grid-template-columns:minmax(320px,360px) minmax(0,1fr);align-items:stretch;gap:14px 28px;height:calc(100vh - 116px);min-height:620px;padding:12px 30px 28px;display:grid}.home-overview{background:#242823;border-radius:28px;flex-direction:column;grid-area:1/1/-1;min-height:0;display:flex;overflow:hidden}.hero-card{border-radius:0;flex:1;min-height:0;padding:clamp(30px,4vh,48px) 30px 22px}.hero-card:after{font-size:250px;bottom:-74px;right:-42px}.streak-pill{padding:8px 13px;font-size:13px}.eyebrow,.section-kicker{font-size:12px}.hero-card .eyebrow{margin:clamp(34px,7vh,76px) 0 13px}.hero-card h1{font-size:clamp(42px,3.35vw,48px)}.hero-subtitle{width:100%;max-width:315px;margin:17px 0 23px;font-size:16px;line-height:1.65}.hero-card .primary-button{width:100%;min-width:0}.primary-button{font-size:16px}.home-overview .daily-row{color:#fff;background:#ffffff0e;border:1px solid #ffffff1a;border-radius:19px;flex:none;min-height:94px;margin:0 22px 22px;padding:16px 18px}.home-overview .daily-row .section-kicker{color:#ff9b84}.home-overview .daily-row strong{font-size:34px}.home-overview .daily-row small{color:#aeb3ad;font-size:14px}.home-overview .daily-hint{color:#aeb3ad}.home-overview .mini-ring span{font-size:12px}.home-overview .mini-ring{background:conic-gradient(#ff8266 var(--percent), #ffffff1f 0)}.home-overview .mini-ring:before{background:#292e28}.course-section{flex-direction:column;grid-area:1/2;min-width:0;min-height:0;display:flex}.section-heading{flex:none;align-items:center;margin:2px 4px 12px}.section-heading h2{font-size:clamp(31px,2.45vw,36px)}.section-heading button{font-size:14px}.course-filters{flex:none;gap:8px;margin:0 2px 14px}.course-filters>div{flex-wrap:wrap;overflow:visible}.course-filters span{flex-basis:44px;font-size:13px}.course-filters button{height:35px;padding:0 14px;font-size:13px}.level-paths{flex:none;grid-auto-rows:minmax(128px,auto)}.level-path-card{padding:13px 14px}.level-path-heading>span{width:40px;height:40px}.level-progress{margin:10px 0 7px}.level-path-card p{margin-bottom:8px}.theme-browser{flex:none}.theme-browser .lesson-list{max-height:270px}.lesson-list{flex:1;grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(92px,auto);align-content:start;gap:10px;min-height:160px;max-height:none;padding:2px 7px 3px 2px;display:grid;overflow-y:auto}.show-more-lessons{flex:none;min-height:36px;margin-top:6px}.word-sources{display:none}.lesson-card{border-radius:18px;min-height:92px;padding:13px 15px}.lesson-card:hover{border-color:#ef6a4c61;transform:translateY(-1px);box-shadow:0 8px 22px #3d362c12}.lesson-number{border-radius:14px;flex-basis:54px;height:56px;font-size:15px}.lesson-copy{padding:0 13px}.lesson-copy small{font-size:11px}.lesson-copy strong{margin:4px 0;font-size:19px}.lesson-copy>span{font-size:13px}.lesson-meta b{font-size:19px}.lesson-meta small{font-size:11px}.word-source{font-size:10px;line-height:1.45}.word-sources{flex:none}.home-actions{grid-area:2/2;grid-template-columns:minmax(0,1fr);margin:0}.home-actions .mode-card,.home-actions .mistake-card{border-radius:19px;min-height:84px;padding:13px 16px}.mode-card h3,.mistake-card h3{font-size:19px}.mode-card p,.mistake-card p{font-size:13px;display:block}.project-legal{grid-area:3/2;grid-template-columns:minmax(0,1fr) auto;place-items:center stretch;gap:12px;min-height:12px;margin:0;font-size:10px}.learning-guide-links{scrollbar-width:none;flex-wrap:nowrap;justify-content:flex-start;gap:10px;min-width:0;overflow-x:auto}.learning-guide-links::-webkit-scrollbar{display:none}.learning-guide-links a{flex:none}.project-meta{white-space:nowrap;flex-wrap:nowrap;justify-content:flex-end}.modal-backdrop{width:min(1400px,100% - 40px)}.counter,.mode-switch button{font-size:14px}.live-stats b{font-size:18px}.live-stats small{font-size:11px}.practice-options button{min-height:34px;padding:0 14px;font-size:12px}.rule-heading span{font-size:13px}.rule-heading small{font-size:10px}.rule-options button{font-size:12px}.word-label{font-size:13px}.translation{font-size:17px}.sound-button span{font-size:12px}.typing-stage .translation.revealed-meaning span{font-size:11px}.typing-feedback{font-size:14px}.keyboard-prompt{font-size:15px}.sheet-heading h2{font-size:26px}.setting-row strong{font-size:15px}.setting-row small{font-size:11px}.setting-row b,.settings-note,.legal-box strong{font-size:12px}.legal-box p{font-size:10px}.legal-box a{font-size:11px}}@media (width>=1024px) and (height<=760px){body{padding:10px 0}.app-shell{min-height:calc(100vh - 20px)}.topbar{height:68px;padding-top:12px}.home-content{height:calc(100vh - 88px);min-height:570px;padding-top:7px;padding-bottom:18px}.hero-card{padding-top:25px}.hero-card .eyebrow{margin-top:28px}.home-overview .daily-row{min-height:78px;margin-bottom:16px;padding:10px 15px}.course-filters{gap:5px;margin-bottom:8px}.course-filters button{height:31px}.level-paths{grid-auto-rows:minmax(105px,auto);gap:7px}.level-path-card{padding:10px 12px}.level-path-heading{grid-template-columns:36px minmax(0,1fr) auto;gap:8px}.level-path-heading>span{border-radius:11px;width:36px;height:36px}.level-progress{margin:7px 0 5px}.level-path-card p{display:none}.level-path-card>button{min-height:32px}.theme-browser{margin-top:7px}.theme-browser>summary{min-height:42px}.lesson-list{gap:7px;min-height:186px}.lesson-card{min-height:82px;padding:9px 12px}.lesson-number{flex-basis:48px;height:50px}.home-actions .mode-card,.home-actions .mistake-card{min-height:74px;padding:10px 12px}.project-legal{display:none}}@media (width<=819px){.practice-screen.keyboard-open{height:var(--visible-viewport-height,100svh);min-height:0;overflow:hidden}.keyboard-open .practice-header{padding:max(7px, env(safe-area-inset-top)) 15px 6px}.keyboard-open .practice-header .icon-button{width:36px;height:36px}.keyboard-open .practice-main{overscroll-behavior:contain;min-height:0;padding:2px 14px 8px;overflow-y:auto}.keyboard-open .practice-controls{z-index:4;background:var(--cream);gap:4px;padding:2px 0 5px;display:grid;position:sticky;top:0}.keyboard-open .practice-footer{display:none}.keyboard-open .mode-switch{padding:3px}.keyboard-open .mode-switch button{height:34px}.keyboard-open .live-stats{border-radius:11px;margin:0;padding:4px 2px}.keyboard-open .live-stats>span:nth-child(2){display:none}.keyboard-open .live-stats{grid-template-columns:repeat(3,1fr)}.keyboard-open .live-stats svg{width:10px;height:10px}.keyboard-open .live-stats b{font-size:11px}.keyboard-open .live-stats small{margin-top:0;font-size:8px}.keyboard-open .spelling-rule{border-radius:11px;grid-template-columns:29px 1fr;min-height:34px;margin:0;padding:2px 34px 2px 7px}.keyboard-open .rule-heading span{font-size:9px}.keyboard-open .rule-options button{height:26px;font-size:9px}.keyboard-open .sound-toggle{border-radius:8px;width:26px;height:26px;right:4px}.keyboard-open .typing-stage{border-radius:22px;min-height:190px;margin-top:4px;padding:11px 12px 8px}.keyboard-open .word-label{font-size:9px}.keyboard-open .recall-prompt{margin-top:6px;font-size:18px}.keyboard-open .letter-word{min-height:59px;padding:9px 0 8px}.keyboard-open .letter-slot{font-size:clamp(30px,9vw,39px)}.keyboard-open .typing-stage .sound-button{height:30px;margin-bottom:5px}.keyboard-open .typing-stage .translation{margin-bottom:5px;font-size:13px}.keyboard-open .typing-stage .accent-strip{display:none}.keyboard-open .typing-feedback{min-height:21px;margin-top:4px;font-size:11px}}@media (width<=599px){.completion-screen{padding:24px 20px;display:block;overflow-y:auto}.completion-burst{border-radius:31px;width:96px;height:96px;margin-bottom:22px}.completion-burst span{font-size:16px}.completion-screen h1{font-size:32px}.result-grid{margin:22px 0}.result-grid div{padding:14px 8px}}