.landing{max-width:1120px;margin:0 auto;padding:env(safe-area-inset-top) max(var(--space-2xl),env(safe-area-inset-right)) 0 max(var(--space-2xl),env(safe-area-inset-left));--landing-section: clamp(56px, 7vw, 96px)}.landing-with-nav{padding-bottom:calc(92px + env(safe-area-inset-bottom))}@media(min-width:768px){.landing-with-nav{padding-left:calc(96px + max(var(--space-2xl),env(safe-area-inset-left)));padding-bottom:0}}.landing ::selection{background:var(--primary);color:var(--text)}.landing a{color:inherit;text-decoration:none;text-underline-offset:.3em}.landing button{font:inherit;cursor:pointer}.landing-header,.landing-brand,.language-switch,.landing-footer{display:flex;align-items:center}.landing-header{justify-content:space-between;min-height:104px;gap:var(--space-lg)}.landing-brand{gap:var(--space-md);font-size:27px;font-weight:800;letter-spacing:-.04em}.brand-roman{font-size:13px;font-weight:500;letter-spacing:.04em;color:var(--muted)}.language-switch{gap:var(--space-xs)}.language-switch button{min-height:44px;padding:var(--space-sm) var(--space-md);border:1px solid transparent;border-radius:999px;background:transparent;color:var(--muted);font-size:13px}.language-switch button[aria-pressed=true]{border-color:var(--surface-2);background:var(--surface);color:var(--text)}.language-switch button:hover{color:var(--text)}.landing-intro{display:grid;grid-template-columns:1.05fr 1fr;align-items:end;gap:var(--space-3xl);padding:var(--landing-section) 0}.landing-intro h1{font-size:clamp(64px,7.5vw,96px);line-height:1.12;letter-spacing:-.04em;margin:0;font-weight:800;word-break:keep-all}.landing-intro h1 span{color:var(--primary-text)}.landing[lang=ja] .landing-intro h1{font-size:clamp(44px,5.4vw,68px);line-height:1.35}.landing-intro-copy{padding-bottom:var(--space-xs)}.landing-intro-copy p:first-child{color:var(--text);font-size:20px;font-weight:600}.landing-intro-copy p{color:var(--muted);font-size:16px;line-height:1.85;white-space:pre-line;margin:0 0 var(--space-lg);word-break:keep-all}.landing-explore{display:inline-flex;align-items:center;gap:var(--space-md);min-height:44px;font-size:14px}.landing-explore:hover{text-decoration:underline}.landing svg{width:24px;height:24px;flex-shrink:0}.landing-subjects{scroll-margin-top:var(--space-3xl)}.subjects-heading{display:flex;justify-content:space-between;align-items:baseline;gap:var(--space-lg);padding-bottom:var(--space-2xl)}.subjects-heading h2{margin:0;font-size:20px;letter-spacing:-.025em}.subjects-heading p{margin:0;font-size:14px;color:var(--muted)}.subject-link{display:grid;grid-template-columns:112px 1fr auto;align-items:center;gap:var(--space-3xl);padding:var(--space-3xl) var(--space-2xl);border-top:1px solid var(--surface-2);transition:background-color .2s ease}.subject-link:last-child{border-bottom:1px solid var(--surface-2)}.subject-link:hover{background:var(--surface)}.subject-letter{font-size:64px;line-height:1;color:var(--primary-text);text-align:center}.subject-info{display:grid;gap:var(--space-sm)}.subject-title{font-size:26px;font-weight:700;letter-spacing:-.03em}.subject-description{font-size:15px;line-height:1.5;color:var(--muted)}.subject-audience{font-size:12px;color:var(--muted);margin-top:var(--space-xs)}.subject-action{display:flex;align-items:center;gap:var(--space-lg);font-size:14px}.subject-action svg{transition:transform .2s cubic-bezier(.16,1,.3,1)}.subject-link:hover .subject-action svg{transform:translate(4px)}.landing-belief{padding:var(--landing-section) 0;max-width:700px}.landing-belief h2{font-size:clamp(22px,3vw,30px);margin:0 0 var(--space-lg);letter-spacing:-.03em;word-break:keep-all}.landing-belief p{font-size:15px;color:var(--muted);line-height:1.8;margin:0;word-break:keep-all}.landing-footer{align-items:center;flex-wrap:wrap;border-top:1px solid var(--surface-2);padding:var(--space-2xl) 0 max(var(--space-2xl),env(safe-area-inset-bottom));gap:var(--space-xl);justify-content:space-between;color:var(--muted);font-size:12px}.landing-footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-2xs)}.landing-footer-name{font-size:18px;font-weight:700;color:var(--text)}.landing-footer-brand p{margin:0;font-size:13px;line-height:1.5}.landing-footer-nav{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:var(--space-xs) var(--space-sm)}.landing-update{background:var(--surface);border:1px solid var(--surface-2);padding:var(--space-lg);margin-bottom:var(--space-lg);display:flex;justify-content:space-between;align-items:center;gap:var(--space-lg)}.landing-update button{border:0;background:var(--primary);color:var(--text);padding:var(--space-md);border-radius:var(--radius)}@media(max-width:700px){.landing-header{min-height:88px}.brand-roman{display:none}.landing-intro{grid-template-columns:1fr;gap:var(--space-3xl);padding-top:var(--space-3xl)}.landing-intro h1{font-size:72px}.landing[lang=ja] .landing-intro h1{font-size:clamp(40px,9vw,60px)}.landing-intro-copy p:first-child{font-size:17px}.landing-intro-copy p{font-size:14px}.subjects-heading{display:block}.subjects-heading h2{font-size:19px}.subjects-heading p{margin-top:var(--space-sm)}.subject-link{grid-template-columns:56px 1fr;gap:var(--space-lg);padding:var(--space-2xl) 0}.subject-letter{font-size:44px;align-self:start;padding-top:var(--space-xs)}.subject-title{font-size:23px}.subject-description{font-size:13px}.subject-action{grid-column:2;justify-content:space-between;font-size:13px}.landing-footer{align-items:flex-start;flex-direction:column;gap:var(--space-sm)}}.landing-footer-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 var(--space-xs);color:var(--muted);font-size:13px;text-decoration:underline}.landing-footer-nav a:hover{color:var(--text)}@layer reset,tokens,base,components,subjects,platform;@layer tokens{:root{--bg: #0f1020;--surface: #1b1c3a;--surface-2: #26284d;--primary: #6a45f5;--primary-text: #a78bff;--primary-press: #5730c8;--text: #f4f4ff;--muted: #a4a6c8;--correct: #3ddc84;--wrong: #ff5c7c;--track: #14152b;--radius: 16px;--space-2xs: 2px;--space-xs: 4px;--space-sm: 8px;--space-md: 12px;--space-lg: 16px;--space-xl: 20px;--space-2xl: 24px;--space-3xl: 32px;--screen-top: max(20px, calc(env(safe-area-inset-top) + 12px) )}}@layer reset{*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;touch-action:manipulation}:focus-visible{outline:3px solid #ffffff;outline-offset:2px}:focus:not(:focus-visible){outline:none}::selection{background:var(--primary);color:var(--text)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}html,body,#root{height:100%;margin:0}}@layer base{body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;overscroll-behavior:none;caret-color:var(--primary-text);scrollbar-color:var(--surface-2) var(--bg)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--surface-2);border:2px solid var(--bg);border-radius:999px}.app{max-width:480px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;position:relative}.screen{flex:1;display:flex;flex-direction:column;padding:var(--screen-top) max(20px,env(safe-area-inset-right)) calc(var(--space-2xl) + env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));gap:var(--space-xl)}}@layer components{.home{justify-content:flex-start}.home-topbar{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:var(--space-md);min-height:48px}.home-back{white-space:nowrap}.home-context-title{margin:0;font-size:16px;font-weight:700;letter-spacing:-.02em}.home-utilities{display:flex;align-items:center;gap:0;padding:2px;border:1px solid var(--surface-2);border-radius:999px;background:var(--surface)}.app-icon{display:inline-block;width:1.2em;height:1.2em;flex:0 0 auto;vertical-align:-.2em}.home-head{text-align:left;padding:var(--space-sm) 0 var(--space-xs)}.sfx-toggle,.search-btn{display:grid;place-items:center;background:transparent;border:none;border-radius:0;width:44px;height:44px;color:var(--text);cursor:pointer}.home-utilities .sfx-toggle{border-left:1px solid var(--surface-2)}.home-utilities button:first-child{border-radius:999px 0 0 999px}.home-utilities button:last-child{border-radius:0 999px 999px 0}.home-utilities .app-icon{width:20px;height:20px}.logo{font-family:inherit;font-weight:700;font-size:30px;margin:0 0 var(--space-xs)}.progress-backup summary{cursor:pointer;min-height:44px;padding-block:var(--space-md);color:var(--text);font-weight:700}.backup-actions{display:flex;flex-wrap:wrap;gap:var(--space-sm)}.backup-actions>button{flex:1 1 140px}.tagline{color:var(--muted);margin:0}.home-section{display:flex;flex-direction:column;gap:var(--space-md)}.home-section-heading{display:flex;align-items:end;justify-content:space-between;gap:var(--space-lg)}.home-section-heading h2{margin:0;font-size:18px;letter-spacing:-.02em}.home-section-heading p{margin:var(--space-xs) 0 0;color:var(--muted);font-size:13px;line-height:1.5}.home-section-count{flex:0 0 auto;color:var(--primary-text);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums}.home-more{margin-top:var(--space-md)}.overall{color:var(--muted);font-size:14px;margin:var(--space-md) 0 0;font-variant-numeric:tabular-nums}.overall strong{color:var(--primary-text)}.banner{background:color-mix(in srgb,var(--wrong) 12%,var(--bg));color:var(--wrong);border:1px solid color-mix(in srgb,var(--wrong) 30%,var(--bg));border-radius:12px;padding:12px 14px;font-size:14px;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);text-align:left}.banner>.app-icon{width:18px;height:18px}.banner.update{display:flex;width:100%;background:color-mix(in srgb,var(--primary) 14%,var(--bg));color:var(--primary-text);border:1px solid color-mix(in srgb,var(--primary) 34%,var(--bg));font-family:inherit;font-weight:600;cursor:pointer;min-height:48px}.deck-switch{display:flex;gap:var(--space-sm);background:var(--surface);border-radius:999px;padding:5px;overflow-x:auto;scrollbar-width:none;-webkit-mask-image:linear-gradient(to right,transparent,#000 6% 94%,transparent);mask-image:linear-gradient(to right,transparent,#000 6% 94%,transparent);scroll-behavior:smooth}.deck-switch::-webkit-scrollbar{display:none}.deck-tab{flex:0 0 auto;border:none;background:transparent;color:var(--muted);font-size:14px;font-weight:700;min-height:48px;padding:0 14px;border-radius:999px;cursor:pointer;white-space:nowrap}.deck-tab.active{background:var(--primary);color:#fff}@media(min-width:520px){.deck-switch{flex-wrap:wrap;overflow-x:visible;justify-content:center;-webkit-mask-image:none;mask-image:none;border-radius:var(--radius)}}.deck-panel{display:flex;flex-direction:column;gap:var(--space-md)}.cat-select{display:flex;align-items:center;gap:var(--space-md);background:var(--surface);border-radius:12px;padding:8px 14px}.cat-select-label{color:var(--muted);font-size:13px;font-weight:700;flex:0 0 auto}.cat-select select{flex:1;min-width:0;background:var(--surface-2);color:var(--text);border:none;border-radius:8px;min-height:44px;padding:0 12px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer}.progress-card{background:var(--surface);border-radius:var(--radius);padding:20px}.progress-label{display:flex;justify-content:space-between;font-weight:600;margin-bottom:var(--space-md);font-variant-numeric:tabular-nums}.progress-bar{height:14px;background:var(--track);border-radius:999px;overflow:hidden;box-shadow:inset 0 1px 2px #0006;display:flex}.progress-bar.slim{height:8px;flex:1}.progress-fill{height:100%;flex:0 0 auto;background:var(--primary);border-radius:999px;transition:width .3s ease}.progress-fill.learning{background:repeating-linear-gradient(135deg,var(--primary-text) 0 3px,transparent 3px 7px),var(--track)}.complete-title{margin:0;font-size:22px;font-weight:800}.complete-delta{margin:-8px 0 0;color:var(--muted);font-size:14px;font-variant-numeric:tabular-nums}.complete-delta strong{color:var(--primary-text)}.progress-legend{display:flex;gap:var(--space-lg);margin:var(--space-md) 0 0;padding:0;list-style:none;color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}.progress-legend li{display:flex;align-items:center;gap:var(--space-sm)}.progress-legend li:before{content:"";width:9px;height:9px;border-radius:50%;flex:0 0 auto}.legend-learned:before{background:var(--primary)}.legend-learning:before{background:repeating-linear-gradient(135deg,var(--primary-text) 0 2px,transparent 2px 4px),var(--track)}.progress-sub{color:var(--muted);font-size:13px;margin-top:var(--space-md)}.btn-primary,.btn-ghost{position:relative;border:none;border-radius:var(--radius);font-size:17px;font-weight:700;padding:16px;min-height:56px;cursor:pointer;width:100%}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 0 var(--primary-press)}.btn-primary:active{transform:translateY(2px);box-shadow:0 2px 0 var(--primary-press)}.btn-ghost{background:transparent;color:var(--muted);box-shadow:none}.link{position:relative;background:none;border:none;color:var(--muted);font-size:26px;cursor:pointer;padding:0;width:48px;height:48px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center}.back-link{display:inline-flex;align-items:center;gap:var(--space-xs);width:fit-content;min-height:48px;padding:0;border:0;background:transparent;color:var(--primary-text);font:inherit;font-weight:700;text-decoration:none;cursor:pointer}.back-link:hover{color:var(--text)}.back-link svg{width:20px;height:20px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.home-actions{display:flex;flex-direction:column;gap:var(--space-md)}.home-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:var(--space-md)}.tile{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-2xs);border:1px solid var(--surface-2);border-radius:14px;background:var(--surface);color:var(--text);font-weight:700;padding:var(--space-md);min-height:56px;cursor:pointer}.tile:active{transform:translateY(1px)}.tile:disabled{opacity:.5;cursor:not-allowed}.tile-title{font-size:15px;display:inline-flex;align-items:center;gap:var(--space-sm)}.tile-title .app-icon{width:18px;height:18px;color:var(--primary-text)}.tile-sub{font-size:12px;font-weight:400;color:var(--muted);font-variant-numeric:tabular-nums}.mode-toggle{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);width:100%;border:1px solid var(--surface-2);border-radius:var(--radius);background:var(--surface);color:var(--muted);font-size:15px;font-weight:600;padding:13px 16px;min-height:52px;cursor:pointer}.mode-toggle.on{border-color:var(--primary);color:#fff}.mode-toggle:disabled{opacity:.5;cursor:not-allowed}.mode-toggle-text small{color:var(--muted);font-weight:400}.mode-toggle-text{display:inline-flex;align-items:center;gap:var(--space-xs);text-align:left}.mode-toggle-text>.app-icon{width:20px;height:20px;color:var(--primary-text)}.mode-toggle-state{flex:0 0 auto;font-variant-numeric:tabular-nums;color:var(--muted)}.mode-toggle.on .mode-toggle-state{color:var(--primary-text)}.lesson,.listen-play{min-height:100dvh;overflow-y:auto;overscroll-behavior:none}.lesson-top{display:flex;align-items:center;gap:var(--space-md)}.lesson-top .link:disabled{opacity:.25;cursor:default}.counter{color:var(--muted);font-size:13px;min-width:34px;text-align:right;font-variant-numeric:tabular-nums}.nav-arrow{position:relative;font-size:24px;line-height:1;padding:0 4px}.nav-arrow:disabled{opacity:.25;cursor:default}.key-hint{display:none}@media(hover:hover)and (pointer:fine){.key-hint{display:inline-block;padding:0 4px;border:1px solid currentColor;border-radius:4px;font-family:inherit;font-size:10px;line-height:1.5;font-variant-numeric:tabular-nums;opacity:.5}button .key-hint{position:absolute;margin:0}.btn-primary .key-hint,.btn-ghost .key-hint{top:50%;right:10px;transform:translateY(-50%)}.opt .key-hint{top:6px;left:10px}.link .key-hint,.nav-arrow .key-hint,.listen-jump .key-hint{top:auto;bottom:100%;left:50%;right:auto;transform:translate(-50%)}.lesson-top,.listen-jump-row{padding-top:18px}}.card{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-lg);text-align:center}.quiz-prompt{flex:1;min-height:0;width:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-lg)}.quiz-prompt.is-feedback{justify-content:flex-end}.quiz-feedback .options{margin-top:0}.quiz-continue{width:100%;min-height:56px;flex:0 0 auto}.quiz-answer{width:100%;max-width:340px;background:var(--surface);border-radius:var(--radius);padding:14px 16px;display:flex;flex-direction:column;align-items:center;gap:var(--space-sm)}.quiz-answer-head{margin:0;font-size:14px;font-weight:700;color:var(--correct)}.quiz-answer.missed .quiz-answer-head{color:var(--wrong)}.quiz-answer-head strong{color:var(--text);font-size:18px}.quiz-answer-reading{margin:0;display:flex;align-items:baseline;gap:var(--space-md)}.answer-hangul{font-size:26px;font-weight:700;color:var(--primary-text)}.answer-romaji{font-size:15px;color:var(--muted)}.quiz-answer-meaning{margin:0;font-size:15px;color:var(--text)}.answer-replay{width:auto;min-height:44px;padding:10px 18px;margin-top:var(--space-xs);font-size:15px;border-radius:999px;background:var(--surface-2);color:var(--text)}@media(hover:hover)and (pointer:fine){.answer-replay .key-hint{position:static;margin-left:8px}}.listen-card .speaking{color:var(--primary-text);transition:color .15s ease}.listen-status{color:var(--muted);font-size:14px;min-height:20px}.listen-controls{display:flex;align-items:center;justify-content:center;gap:var(--space-lg);margin:var(--space-sm) 0 var(--space-md)}.listen-controls .nav-arrow{font-size:32px}.listen-play-btn{min-width:140px}.listen-skip{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);margin:0 0 var(--space-lg)}.listen-jump{position:relative;border:1px solid var(--surface-2);background:transparent;color:var(--text);border-radius:8px;min-height:44px;min-width:44px;padding:0 12px;font-size:14px;font-variant-numeric:tabular-nums;cursor:pointer}.listen-options{display:flex;flex-direction:column;gap:var(--space-md)}.listen-opt{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);color:var(--muted);font-size:14px}.seg{display:flex;gap:var(--space-xs)}.seg-item{border:1px solid var(--surface-2);background:transparent;color:var(--text);border-radius:8px;min-height:44px;min-width:44px;padding:0 10px;font-size:14px;cursor:pointer}.seg-item.on{background:var(--primary);border-color:var(--primary);color:#fff}.listen-chip{border:1px solid var(--surface-2);background:transparent;color:var(--text);border-radius:10px;min-height:44px;padding:10px 14px;font-size:14px;text-align:left;cursor:pointer}.listen-chip.on{border-color:var(--primary-text);color:var(--primary-text)}.listen-chip:disabled{opacity:.4;cursor:default}.prompt-label{color:var(--muted);margin:0}.glyph.big{font-size:110px;line-height:1;font-weight:600}.glyph.word{font-size:56px;line-height:1.1;font-weight:600;text-align:center;max-width:340px;overflow-wrap:anywhere}.glyph.sentence{font-size:30px;line-height:1.4;font-weight:600;text-align:center;max-width:340px}.cloze-sentence{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:var(--space-2xs)}.cloze-gap{color:var(--primary-text);border-bottom:3px solid var(--primary-text);letter-spacing:2px;padding:0 4px}.cloze-fill{color:var(--primary-text);border-bottom:3px solid var(--primary-text);padding:0 4px}.pattern{background:var(--surface-2);color:var(--primary-text);font-weight:700;font-size:15px;padding:8px 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20px;display:block}.account-oauth-google{position:relative;border-color:#8e918f;background:#131314;color:#e3e3e3;font-size:14px;font-weight:500;line-height:20px}.account-google-mark-background{position:absolute;inset-inline-start:12px;top:50%;width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#fff;transform:translateY(-50%)}.account-google-mark-background .account-provider-mark{width:20px;height:20px;flex-basis:20px}.account-oauth-google{font-family:Google Sans,Noto Sans KR,Roboto,Arial,sans-serif}.account-oauth-kakao{border-color:transparent;background:#fee500;color:#000000d9;font-size:16px;line-height:20px}.account-kakao-mark-slot{position:absolute;inset-inline-start:12px;top:50%;width:24px;height:24px;display:grid;place-items:center;transform:translateY(-50%)}.account-oauth-kakao .account-provider-mark{fill:#000}.account-oauth-label{display:block;inline-size:100%}.account-auth-loading{min-height:56px}.account-auth-placeholder{min-height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-lg);border:1px solid var(--surface-2);border-radius:12px;background:var(--surface)}.account-auth-placeholder:before{width:4.5rem;height:12px;border-radius:999px;background:var(--surface-2);content:"";opacity:.65}.account-auth-placeholder:after{width:8px;height:8px;border-top:2px solid var(--muted);border-right:2px solid var(--muted);content:"";transform:rotate(45deg)}.account-action-button.account-oauth-google:hover:not(:disabled){border-color:#8e918f;background:#131314;color:#e3e3e3}.account-action-button.account-oauth-kakao:hover:not(:disabled){border-color:transparent;background:#fee500;color:#000000d9}.account-action-button.account-oauth-google:disabled,.account-action-button.account-oauth-kakao:disabled{opacity:1;cursor:wait}.account-login-link{display:flex;align-items:center;justify-content:space-between;color:var(--text);text-decoration:none}.login-back{margin-bottom:var(--space-lg)}.account-action-button:hover:not(:disabled),.account-text-button:hover:not(:disabled){border-color:var(--primary);color:var(--primary-text)}.account-text-button.is-danger{color:var(--wrong)}.account-action-button:disabled,.account-text-button:disabled{cursor:wait;opacity:.62}.account-provider-list{display:flex;flex-direction:column;gap:var(--space-sm);margin:0;padding:0;list-style:none}.account-provider-list li{min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:var(--space-sm) 0;border-bottom:1px solid var(--surface-2)}.account-provider-actions,.account-session-actions,.account-reauth{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-sm)}.account-session-actions,.account-reauth{padding-top:var(--space-md);border-top:1px solid var(--surface-2)}.account-text-button{min-height:48px;padding:var(--space-sm) var(--space-md);border:1px solid transparent;border-radius:12px;background:transparent;color:var(--primary-text);font:inherit;font-weight:700;text-align:start;overflow-wrap:anywhere}.account-message,.account-retry{margin:0;padding:var(--space-md) var(--space-lg);border:1px solid var(--surface-2);border-radius:12px;background:var(--surface);color:var(--text);line-height:1.55}.account-message.is-error,.account-retry{border-color:color-mix(in srgb,var(--wrong) 55%,var(--surface-2));color:var(--wrong)}.account-retry p{margin:0 0 var(--space-sm)}.account-retry button{min-height:48px;padding:var(--space-sm) var(--space-md);border:1px solid var(--surface-2);border-radius:12px;background:var(--surface-2);color:var(--text);font:inherit;font-weight:700}}@layer components{.learning-subject{border-top:1px solid var(--surface-2)}.learning-subject .learning-row{min-height:84px;padding:var(--space-md) 0;border:0;border-radius:0;background:transparent}.learning-summary{gap:0}.learning-summary>h2{margin-bottom:var(--space-md)}.learning-subject:last-of-type{border-bottom:1px solid var(--surface-2)}.learning-copy h3{margin:0;color:var(--text);font-size:18px;line-height:1.35}.learning-subject .learning-action{min-height:48px;text-decoration:none}.learning-subject .learning-action:hover,.learning-open-subject:hover,.learning-deck-breakdown a:hover{color:var(--text)}.learning-detail{border-top:1px solid var(--surface-2)}.learning-detail>summary{display:flex;align-items:center;min-height:48px;padding:0 var(--space-lg);color:var(--primary-text);font-size:15px;font-weight:700;cursor:pointer;list-style-position:inside}.learning-detail-body{display:flex;flex-direction:column;gap:var(--space-md);padding:0 var(--space-lg) var(--space-lg)}.learning-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin:0}.learning-metrics>div{display:flex;min-width:0;min-height:62px;flex-direction:column;align-items:flex-start;justify-content:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md)}.learning-metrics>div:nth-child(2n){border-left:1px solid var(--surface-2)}.learning-metrics>div:nth-child(n+3){border-top:1px solid var(--surface-2)}.learning-metrics>div:nth-child(odd){padding-left:0}.learning-metrics>div:nth-child(2n){padding-right:0}.learning-metrics dt,.learning-metrics dd{margin:0;font-size:14px;line-height:1.5}.learning-metrics dt{color:var(--muted)}.learning-metrics dd{display:flex;flex-direction:column;gap:1px;color:var(--text);font-size:22px;font-weight:700;font-variant-numeric:tabular-nums}.learning-metric-basis{color:var(--muted);font-size:11px;font-weight:400;line-height:1.4;font-variant-numeric:normal}.learning-stage-list,.learning-deck-breakdown,.learning-subject-extra{display:flex;flex-direction:column;gap:var(--space-sm)}.learning-stage-list h4,.learning-deck-breakdown h4,.learning-deck-breakdown h5,.learning-subject-extra h4{margin:0;font-size:15px}.learning-stage-description{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.learning-stage-list ol{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:var(--space-xs);margin:0;padding:0;list-style:none}.learning-stage-list li{display:flex;min-width:0;min-height:56px;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:var(--space-xs);padding:var(--space-sm);border-radius:8px;background:var(--track);color:var(--muted);font-size:11px}.learning-stage-list li span:last-child{color:var(--text);font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}.learning-deck-breakdown>p,.learning-subject-extra>p,.learning-history-note,.learning-exam-summary{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.learning-subject-extra{padding:var(--space-md);border:1px solid var(--surface-2);border-radius:12px;background:var(--surface)}.learning-deck-breakdown ul{display:flex;flex-direction:column;gap:0;margin:0;padding:0;list-style:none}.learning-history-note{padding-top:var(--space-sm);border-top:1px solid var(--surface-2)}.learning-deck-breakdown li{border-bottom:1px solid var(--surface-2)}.learning-deck-breakdown a{display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);min-height:48px;color:var(--text);font-size:13px;text-decoration:none}.learning-deck-breakdown a span:last-child{color:var(--muted);text-align:end;font-variant-numeric:tabular-nums}.learning-open-subject{display:inline-flex;align-items:center;gap:var(--space-xs);align-self:flex-start;min-height:48px;color:var(--primary-text);font-size:15px;font-weight:700;text-decoration:none}.learning-open-subject .app-icon{width:16px;height:16px}.learning-history{gap:var(--space-lg)}.learning-history-head{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-md)}.learning-history-head>div{min-width:0;flex:1 1 auto}.learning-history-head h2{font-size:20px;letter-spacing:-.02em}.learning-history-head p{margin:var(--space-xs) 0 0;color:var(--muted);font-size:14px;line-height:1.5}.learning-history-period{flex:0 0 auto;margin-top:1px;padding:7px 10px;border:1px solid var(--surface-2);border-radius:999px;color:var(--primary-text);font-size:12px;font-weight:700;line-height:1.3}.learning-activity-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:0;overflow:hidden;border:1px solid var(--surface-2);border-radius:12px;background:var(--surface)}.learning-activity-metrics>div{display:flex;min-width:0;flex-direction:column;justify-content:center;gap:var(--space-xs);min-height:60px;padding:var(--space-sm) var(--space-md)}.learning-activity-metrics>div:nth-child(2n){border-left:1px solid var(--surface-2)}.learning-activity-metrics>div:nth-child(n+3){border-top:1px solid var(--surface-2)}.learning-activity-metrics dt{overflow:hidden;color:var(--muted);font-size:13px;line-height:1.4;text-overflow:ellipsis;white-space:nowrap}.learning-activity-metrics dd{display:flex;min-width:0;flex-direction:column;gap:var(--space-xs);margin:0;color:var(--text);font-size:24px;font-weight:750;line-height:1.2;font-variant-numeric:tabular-nums}.learning-metric-detail{color:var(--muted);font-size:12px;font-weight:400}.learning-heatmap-panel{display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-md);border:1px solid var(--surface-2);border-radius:var(--radius);background:var(--surface)}.learning-heatmap-body{--heat-cell: 10px;--heat-gap: 2px;--heat-month-height: 15px;--heat-scroll-inset: 2px;display:grid;grid-template-columns:16px minmax(0,1fr);gap:var(--space-sm);align-items:start}.learning-heatmap-weekdays,.learning-heatmap-weeks,.learning-heatmap-week{display:grid;grid-template-rows:repeat(7,var(--heat-cell));gap:var(--heat-gap)}.learning-heatmap-weekdays{padding-top:calc(var(--heat-month-height) + var(--heat-scroll-inset));color:var(--muted);font-size:12px;line-height:1;text-align:center}.learning-heatmap-scroll{overflow-x:auto;padding:var(--heat-scroll-inset);overscroll-behavior-x:contain;scrollbar-color:var(--surface-2) transparent;scrollbar-width:thin;-webkit-overflow-scrolling:touch}.learning-heatmap-scroll:focus-visible{border-radius:6px;outline:2px solid var(--primary-text);outline-offset:2px}.learning-heatmap-content{width:max-content}.learning-heatmap-months,.learning-heatmap-weeks{display:flex;gap:var(--heat-gap)}.learning-heatmap-months{height:var(--heat-month-height);align-items:flex-start}.learning-heatmap-month{width:var(--heat-cell);flex:0 0 var(--heat-cell);color:var(--muted);font-size:11px;line-height:1;white-space:nowrap}.learning-heatmap-week{flex:0 0 var(--heat-cell)}.learning-heatmap-day{-webkit-appearance:none;-moz-appearance:none;appearance:none;display:block;width:var(--heat-cell);height:var(--heat-cell);padding:0;border:0;border-radius:2px;background:var(--track);cursor:pointer}.learning-heatmap-day.level-1{background:color-mix(in srgb,var(--primary) 30%,var(--surface-2))}.learning-heatmap-day.level-2{background:color-mix(in srgb,var(--primary) 62%,var(--surface-2))}.learning-heatmap-day.level-3{background:var(--primary)}.learning-heatmap-day.is-today{outline:1px solid var(--primary-text);outline-offset:1px}.learning-heatmap-day.is-selected{box-shadow:0 0 0 2px var(--text)}.learning-heatmap-day:focus-visible{outline:2px solid var(--primary-text);outline-offset:2px}.learning-heatmap-day.is-future{opacity:.32}.learning-heatmap-selected{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:var(--space-xs);margin:0;color:var(--muted);font-size:13px;line-height:1.4;font-variant-numeric:tabular-nums}.learning-heatmap-selected strong{color:var(--text);font-weight:700}.learning-heatmap-legend{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-xs);color:var(--muted);font-size:12px}.learning-heatmap-swatch{flex:0 0 auto}.learning-storage-note{display:flex;flex-direction:column;gap:var(--space-xs);padding-top:var(--space-md);border-top:1px solid var(--surface-2);color:var(--muted)}.learning-storage-note h2{margin:0;color:var(--text);font-size:15px}.learning-storage-note p{margin:0;font-size:13px;line-height:1.6}@media(max-width:380px){.learning-subject .learning-row{grid-template-columns:40px minmax(0,1fr)}.learning-subject .learning-action{grid-column:2;justify-self:start}.learning-deck-breakdown a{align-items:flex-start;flex-direction:column;justify-content:center;gap:var(--space-xs)}.learning-deck-breakdown a span:last-child{text-align:start}}}@layer platform{:root{--platform-screen-bottom: env(safe-area-inset-bottom)}:root[data-platform=ios]{--platform-screen-bottom: max(8px, env(safe-area-inset-bottom))}:root[data-platform=android]{--platform-screen-bottom: env(safe-area-inset-bottom)}:root[data-platform=ios] .screen,:root[data-platform=android] .screen{padding-bottom:calc(var(--space-2xl) + var(--platform-screen-bottom))}@media(max-width:767px){:root[data-platform=ios] .home,:root[data-platform=android] .home,:root[data-platform=ios] .app-with-nav>.screen,:root[data-platform=android] .app-with-nav>.screen{padding-bottom:calc(92px + var(--platform-screen-bottom))}}}