:root{--ground: #f4f2ec;--surface: #ffffff;--surface-2: #ece8db;--ink: #111111;--dim: #5d574a;--faint: #7a766b;--line: #d9d5c9;--accent: #111111;--accent-ink: #ffe600;--accent-soft: #ffe600;--good: #1d7a46;--good-soft: #e3eedd;--bad: #c62f27;--bad-soft: #f4ded9;--warn: #8a6300;--warn-soft: #f6ecc4;--serif: "Newsreader", "Iowan Old Style", "Palatino", Georgia, serif;--sans: "Gothic A1", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;--mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--bar-bg: var(--surface);--shadow-soft: none;--shadow-float: none;--tabbar-h: calc(66px + env(safe-area-inset-bottom)) }@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--ground: #131311;--surface: #1c1b17;--surface-2: #262521;--ink: #f4f2ec;--dim: #b3ac9c;--faint: #8d887b;--line: #3d3b33;--accent: #ffe600;--accent-ink: #111111;--accent-soft: #37320c;--good: #6cbb8f;--good-soft: #1c2e22;--bad: #e2716a;--bad-soft: #382019;--warn: #d9b04a;--warn-soft: #332b10}}:root[data-theme=dark]{--ground: #131311;--surface: #1c1b17;--surface-2: #262521;--ink: #f4f2ec;--dim: #b3ac9c;--faint: #8d887b;--line: #3d3b33;--accent: #ffe600;--accent-ink: #111111;--accent-soft: #37320c;--good: #6cbb8f;--good-soft: #1c2e22;--bad: #e2716a;--bad-soft: #382019;--warn: #d9b04a;--warn-soft: #332b10}*{box-sizing:border-box}html,body{margin:0}body{background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.5;-webkit-tap-highlight-color:transparent}#root{max-width:560px;margin:0 auto;padding:6px 18px calc(20px + var(--tabbar-h))}button{font-family:inherit}.appbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:calc(12px + env(safe-area-inset-top)) 0 10px;margin-bottom:14px;background:var(--ground);border-bottom:2px solid var(--ink)}.wordmark{font-size:19px;font-weight:900;letter-spacing:-.01em}.wordmark .dot{color:inherit}.appbar .date{color:var(--ink);font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.06em}.worker-chip{font-size:11.5px;font-weight:700;color:var(--warn);background:var(--warn-soft);border-radius:0;padding:4px 10px;cursor:help}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:grid;grid-template-columns:repeat(4,1fr);padding:0 0 env(safe-area-inset-bottom);background:var(--surface);border-top:2px solid var(--ink)}.tabbar button{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:0;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:10px 0 12px;border-radius:0;color:var(--dim);transition:color .15s,background .15s;border-left:1px solid var(--line)}.tabbar button:first-child{border-left:0}.tabbar svg{display:none}.tabbar button:before{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.1em;color:var(--faint)}.tabbar button:nth-child(1):before{content:"01"}.tabbar button:nth-child(2):before{content:"02"}.tabbar button:nth-child(3):before{content:"03"}.tabbar button:nth-child(4):before{content:"04"}.tabbar .tabbar-label{font-size:12px;font-weight:700}.tabbar button.active{background:var(--ink);color:var(--accent-ink)}.tabbar button.active:before{color:var(--accent-ink)}.tabbar button.active .tabbar-label{font-weight:900}.tabbar button:active{color:var(--ink)}.section-label{font-size:14.5px;font-weight:900;letter-spacing:-.01em;color:var(--ink);margin:24px 0 10px;display:flex;align-items:center;justify-content:space-between}.section-label .count{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--dim);font-variant-numeric:tabular-nums;letter-spacing:0}.list{background:var(--surface);border-radius:0;border:2px solid var(--ink);overflow:hidden}.list-row{display:flex;align-items:center;gap:12px;padding:12px 14px;border-bottom:1px solid var(--line)}.list-row:last-child{border-bottom:0}.list-row .grow{flex:1;min-width:0}.list-row .name{font-weight:600;font-size:14.5px}.list-row .meta{color:var(--dim);font-size:12.5px;margin-top:2px;font-variant-numeric:tabular-nums}.list-row.tappable{cursor:pointer}.list-row.tappable:active{background:var(--surface-2)}.empty{color:var(--dim);font-size:14px;padding:14px}.chip-state{flex-shrink:0;font-size:11.5px;font-weight:700;padding:3px 8px;border-radius:0;font-family:var(--mono);font-variant-numeric:tabular-nums;background:var(--surface-2);color:var(--dim)}.chip-state.due{background:var(--bad-soft);color:var(--bad)}.chip-state.ok{background:var(--good-soft);color:var(--good)}.chip-state.warn{background:var(--warn-soft);color:var(--warn)}.chip-state.accent{background:var(--accent-soft);color:var(--accent)}.check{flex-shrink:0;width:21px;height:21px;border-radius:0;border:1.5px solid var(--faint);display:grid;place-items:center;color:transparent;font-size:13px;font-weight:800}.list-row.selected .check{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.list-row.selected{background:color-mix(in srgb,var(--accent-soft) 45%,var(--surface))}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-radius:0;cursor:pointer;background:var(--accent);color:var(--accent-ink);font-size:15.5px;font-weight:700;padding:14px 18px;width:100%;transition:transform .12s ease,opacity .12s ease}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.45;cursor:default}.btn.ghost{background:var(--surface);border:2px solid var(--ink);color:var(--ink);font-weight:700;padding:12px 18px}.btn.small{width:auto;padding:10px 15px;font-size:13.5px;border-radius:0}.btn.danger{background:var(--bad);color:#fff}.btn.safe{background:var(--good);color:#fff}.btn-row{display:flex;gap:8px}.btn-row .btn{flex:1}.selectbar{position:fixed;left:0;right:0;bottom:var(--tabbar-h);z-index:41;padding:10px 18px 12px;background:var(--surface);border-top:2px solid var(--ink)}.selectbar-inner{max-width:560px;margin:0 auto;display:flex;flex-direction:column;gap:9px}.selectbar-row{display:flex;gap:8px;align-items:center}.selectbar-row .btn{flex:1}.opt-label{font-size:12px;font-weight:700;color:var(--faint);width:42px;flex-shrink:0}.seg{display:flex;flex:1;gap:0;border:2px solid var(--ink);background:var(--surface)}.seg button{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;cursor:pointer;padding:10px 0;border-radius:0;font-size:13px;font-weight:700;color:var(--ink);background:var(--surface);border-left:1px solid var(--line);font-variant-numeric:tabular-nums;transition:color .15s,background .15s}.seg button:first-child{border-left:0}.seg button.on{background:var(--ink);color:var(--accent-ink);font-weight:900}.learn-seg{margin-bottom:16px}.learn-seg button{font-size:13.5px}.hero{background:var(--surface);border:1px solid var(--line);border-radius:0;padding:15px 16px 13px;margin-bottom:12px}.hero-row{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:10px}.streak{font-size:14.5px;font-weight:700}.hero-pct{font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}.hero-bar{height:7px;background:var(--surface-2);border-radius:0;overflow:hidden}.hero-bar>div{height:100%;background:var(--accent);border-radius:0;transition:width .4s ease}.hero-sub{color:var(--dim);font-size:12.5px;margin-top:8px;font-variant-numeric:tabular-nums}.cta{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;cursor:pointer;width:100%;background:var(--accent);color:var(--accent-ink);border-radius:0;padding:17px 18px;margin-bottom:12px;display:flex;flex-direction:column;align-items:flex-start;gap:3px;text-align:left;box-shadow:none;transition:transform .12s ease}.cta:active:not(:disabled){transform:scale(.98)}.cta:disabled{opacity:.55;cursor:default}.cta-label{font-size:17px;font-weight:800}.cta-sub{font-size:12.5px;opacity:.8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}.alldone{background:var(--good-soft);border-radius:0;padding:18px;margin-bottom:12px;text-align:center}.alldone-big{font-size:17px;font-weight:800;color:var(--good)}.alldone-sub{font-size:12.5px;color:var(--dim);margin-top:3px}.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:10px}.tile{background:var(--surface);border:1px solid var(--line);border-radius:0;padding:12px 8px 10px;text-align:center}.tile.tappable{cursor:pointer}.tile.tappable:active{background:var(--surface-2)}.tile-num{font-family:var(--serif);font-size:24px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}.tile-label{font-size:11.5px;font-weight:700;color:var(--faint);margin-top:2px;letter-spacing:.04em}.tile.hot .tile-num{color:var(--accent)}.tile.late .tile-num{color:var(--bad)}.yesterday{color:var(--dim);font-size:12.5px;text-align:center;margin:2px 0 4px;font-variant-numeric:tabular-nums}.banner.warn-banner{border-color:color-mix(in srgb,var(--warn) 45%,var(--line));background:var(--warn-soft);font-size:13.5px}.banner{display:flex;align-items:center;gap:10px;border:2px solid var(--ink);border-radius:0;background:var(--surface);padding:12px 15px;margin-bottom:10px;font-size:14px}.banner .pulse{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 1.4s ease-in-out infinite;flex-shrink:0}.banner.error{border-color:color-mix(in srgb,var(--bad) 40%,var(--line))}.banner.error .detail{color:var(--dim);font-size:12.5px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.25}}@media(prefers-reduced-motion:reduce){.banner .pulse{animation:none}}.quiz-top{display:flex;align-items:center;justify-content:space-between;padding:8px 0 2px}.quiz-top .exit{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:0;color:var(--dim);font-size:15px;cursor:pointer;padding:12px 14px 12px 0;margin:-8px 0}.quiz-top .pos{color:var(--faint);font-size:13px;font-variant-numeric:tabular-nums}.progress{height:3px;background:var(--line);border-radius:0;margin:10px 0 22px;overflow:hidden}.progress>div{height:100%;background:var(--accent);transition:width .25s}.qtype-tag{display:inline-block;font-size:11.5px;font-weight:900;letter-spacing:.06em;text-transform:uppercase;color:var(--ink);background:var(--accent-soft);padding:2px 7px;margin-bottom:10px}.sentence{font-family:var(--serif);font-size:22px;line-height:1.55;letter-spacing:.005em;margin:0 0 20px;text-wrap:balance;white-space:pre-wrap}.sentence.ko{font-family:var(--sans);font-size:18.5px;font-weight:600}.hint{color:var(--dim);font-size:13.5px;margin:-10px 0 16px}.choice{display:block;width:100%;text-align:left;cursor:pointer;background:var(--surface);color:var(--ink);border:2px solid var(--ink);border-radius:0;padding:14px 17px;margin-bottom:10px;font-family:var(--serif);font-size:18px;transition:border-color .12s,background .12s}.choice:not(:disabled):active{background:var(--accent-soft)}.choice:disabled{cursor:default}.choice.correct{border-color:var(--good);border-width:2px;background:var(--good-soft);font-weight:700}.choice.correct:after{content:"✓ 정답";float:right;color:var(--good);font-weight:800;font-size:13px}.choice.wrong{border-color:var(--bad);border-width:2px;background:var(--bad-soft);text-decoration:line-through;text-decoration-color:var(--bad);opacity:.85}.choice.wrong:after{content:"✕ 내 선택";float:right;color:var(--bad);font-weight:800;font-size:13px;text-decoration:none}.input{width:100%;font-size:17px;padding:13px 16px;margin-bottom:12px;border-radius:0;border:2px solid var(--ink);background:var(--surface);color:var(--ink);font-family:var(--serif)}.input:focus{outline:none;box-shadow:0 0 0 3px var(--accent-soft)}.input::placeholder{font-family:var(--sans);font-size:14.5px;color:var(--faint)}textarea.input{min-height:88px;resize:vertical;line-height:1.5}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.word-chip{border:1px solid var(--line);border-radius:0;padding:11px 14px;cursor:pointer;background:var(--surface);color:var(--ink);font-family:var(--serif);font-size:16.5px;min-width:44px;min-height:44px;text-align:center}.word-chip.used{opacity:.22;pointer-events:none}.assembled{min-height:50px;border-bottom:1.5px solid var(--line);padding:8px 2px 10px;margin-bottom:16px;font-family:var(--serif);font-size:19px;line-height:1.6}.assembled .ph{color:var(--faint);font-family:var(--sans);font-size:14px}.feedback{border-radius:0;padding:13px 15px;margin:14px 0;font-size:14.5px;line-height:1.55}.feedback.good{background:var(--good-soft)}.feedback.bad{background:var(--bad-soft)}.feedback .verdict{font-weight:700;margin-bottom:4px}.feedback.good .verdict{color:var(--good)}.feedback.bad .verdict{color:var(--bad)}.feedback .ans{font-family:var(--serif);font-size:16px}.feedback .expl{color:var(--dim);margin-top:6px;font-size:13.5px}.score-hero{text-align:center;padding:26px 0 8px}.score-hero .big{font-family:var(--serif);font-size:54px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}.score-hero .big .total{color:var(--faint);font-size:26px}.score-hero .caption{color:var(--dim);font-size:14px;margin-top:8px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(72px,1fr));gap:8px;margin:16px 0}.stat-cell{background:var(--surface);border:2px solid var(--ink);border-radius:0;padding:10px 6px;text-align:center}.stat-cell .val,.score-hero .big,.tile-num{font-family:var(--mono)}.stat-cell .label{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--faint);word-break:keep-all;line-height:1.25}.stat-cell .val{font-size:16px;font-weight:700;margin-top:3px;font-variant-numeric:tabular-nums}.stat-cell .val.allgood{color:var(--good)}.stat-cell .val.haswrong{color:var(--bad)}.center{text-align:center;color:var(--dim);padding:36px 0}.spacer{height:10px}.flashcard{background:var(--surface);border:2px solid var(--ink);border-radius:0;min-height:260px;padding:26px 22px;margin:6px 0 16px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;cursor:pointer;gap:14px}.fc-label{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}.fc-front{font-size:24px;font-weight:700;text-wrap:balance}.fc-tap{font-size:12.5px;color:var(--faint)}.fc-back{font-family:var(--serif);font-size:26px;font-weight:700;color:var(--accent);text-wrap:balance}.fc-example{font-family:var(--serif);font-size:16.5px;line-height:1.55}.fc-example-ko{font-family:var(--sans);font-size:13.5px;color:var(--dim);margin-top:4px}.fc-note{font-size:13px;color:var(--warn)}.drill-timer{height:5px;background:var(--line);border-radius:0;margin:4px 0 26px;overflow:hidden}.drill-timer>div{height:100%;background:var(--warn);transition:width .1s linear}.drill-choice{text-align:center;font-size:19px;font-weight:600;padding:18px 0}.drill-expl{text-align:center;color:var(--dim);font-size:14px;margin-top:12px}.heatmap{display:grid;grid-template-rows:repeat(7,1fr);grid-auto-flow:column;gap:3px;height:96px}.hm{border-radius:0;background:var(--surface-2)}.hm-1{background:color-mix(in srgb,var(--accent) 25%,var(--surface-2))}.hm-2{background:color-mix(in srgb,var(--accent) 50%,var(--surface-2))}.hm-3{background:color-mix(in srgb,var(--accent) 75%,var(--surface-2))}.hm-4{background:var(--accent)}.report{padding:13px 15px;font-size:14px;line-height:1.65;white-space:pre-wrap}.fb-mine{font-family:var(--serif);font-size:15.5px;margin-top:5px;text-decoration:line-through;text-decoration-color:color-mix(in srgb,var(--bad) 55%,transparent);text-decoration-thickness:1.5px}.fb-fix{font-family:var(--serif);font-size:15.5px;color:var(--good);margin-top:3px}.fb-comment{font-size:13.5px;color:var(--dim);margin-top:6px;line-height:1.55}.fb-natural{font-family:var(--serif);font-size:14.5px;color:var(--accent);margin-top:6px}.deck-filters{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 4px}.filter-chip{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:2px solid var(--ink);background:var(--surface);cursor:pointer;color:var(--ink);font-size:13px;font-weight:700;border-radius:0;padding:8px 14px;white-space:nowrap;flex-shrink:0}.filter-chip.on{background:var(--ink);color:var(--accent-ink);font-weight:900}.alpha-head{padding:7px 14px 5px;font-size:12px;font-weight:800;color:var(--accent);background:var(--surface-2);border-bottom:1px solid var(--line);font-family:var(--serif);letter-spacing:.05em}.vocab-line{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.vocab-word{font-family:var(--serif);font-size:17px;font-weight:700}.vocab-mean{font-size:13.5px;color:var(--dim)}.vocab-detail{margin-top:8px;border-top:1px dashed var(--line);padding-top:8px}.vocab-ex{font-family:var(--serif);font-size:15px;line-height:1.5}.vocab-ex-ko{font-size:12.5px;color:var(--dim);margin-top:2px}.vocab-note{font-size:12.5px;color:var(--warn);margin-top:4px}.vocab-meta-row{display:flex;align-items:center;gap:8px;margin-top:8px}.vocab-meta-row .meta{font-size:12px;color:var(--faint)}.vocab-meta-row .tts-inline{margin-left:0}.tts-inline{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:none;cursor:pointer;color:var(--dim);font-size:12px;border-radius:0;padding:6px 10px;margin-left:8px;font-family:var(--sans)}.filter-chip.cat{border-style:dashed}.filter-chip.cat.on{border-style:solid}.alpha-head .cat-n{color:var(--faint);font-family:var(--sans);font-weight:600;font-size:11px}.family-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px}.family-label{font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--faint);margin-right:2px}.family-chip{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;border:1px solid var(--line);border-radius:0;background:var(--surface-2);color:var(--dim);font-size:12px;padding:7px 11px;font-family:var(--sans)}.family-chip b{color:var(--accent);font-family:var(--serif);font-size:13px;font-weight:700}.family-chip:active{background:var(--accent-soft)}.quiz-del{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;background:none;cursor:pointer;color:var(--faint);font-size:16px;padding:12px 4px 12px 12px;flex-shrink:0}.quiz-del:active{color:var(--bad)}.mistake-q{font-family:var(--serif);font-size:14.5px;line-height:1.5}.mistake-a{font-size:13px;color:var(--bad);margin-top:3px}.start-card{background:var(--surface);border:2px solid var(--ink);border-radius:0;padding:26px 20px 22px;text-align:center;margin-bottom:14px}.start-title{font-size:21px;font-weight:900}.start-sub{color:var(--dim);margin:6px 0 16px;font-size:14px}.start-card .cta{margin:0 auto}.start-hint{color:var(--faint);font-size:12px;margin-top:10px}.wait-hero{text-align:center;padding:56px 0 28px}.wait-anim{display:flex;gap:7px;justify-content:center;margin-bottom:22px}.wait-anim span{width:10px;height:10px;border-radius:50%;background:var(--accent);animation:wait-bounce 1.2s infinite ease-in-out}.wait-anim span:nth-child(2){animation-delay:.15s}.wait-anim span:nth-child(3){animation-delay:.3s}@keyframes wait-bounce{0%,60%,to{transform:translateY(0);opacity:.45}30%{transform:translateY(-9px);opacity:1}}.wait-title{font-size:19px;font-weight:700}.wait-msg{color:var(--dim);margin-top:8px;min-height:20px}.wait-time{color:var(--faint);font-size:12px;margin-top:14px;margin-bottom:26px}.session-step{color:var(--dim);font-size:13px;margin-bottom:10px;text-align:center}.done-hero{text-align:center;padding:48px 0 30px}.done-emoji{font-size:52px}.done-title{font-size:24px;font-weight:800;margin-top:12px}.done-sub{color:var(--dim);margin-top:8px}.group{margin-bottom:8px}.group-head{display:flex;align-items:center;gap:8px;width:100%;background:var(--surface);border:2px solid var(--ink);border-radius:0;padding:13px 16px;font:inherit;font-size:14.5px;font-weight:900;cursor:pointer;text-align:left}.group-head .grow{flex:1}.group-arrow{transition:transform .15s;color:var(--faint)}.group-arrow.open{transform:rotate(90deg)}.group-count{color:var(--faint);font-weight:500;font-size:13px}.group-sel{background:var(--accent-soft);color:var(--ink);border-radius:0;font-family:var(--mono);font-size:11px;font-weight:700;padding:2px 7px}.group-selall{color:var(--accent);font-size:12.5px;font-weight:600;padding:10px 2px 10px 12px}.group>.list{margin-top:6px}.guide-ko{color:var(--dim);font-size:14px;margin:6px 0 10px}.vocab-hint{margin-top:14px}.vocab-hint-toggle{background:none;border:none;padding:10px 12px 10px 0;color:var(--accent);font:inherit;font-size:13px;font-weight:600;cursor:pointer}.vocab-hint-body{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.vocab-hint-chip{background:var(--surface);border:1px solid var(--line);border-radius:0;padding:4px 11px;font-size:13px;color:var(--ink)}.appbar-right{display:flex;align-items:baseline;gap:10px}.theme-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:none;cursor:pointer;font-size:17px;padding:8px;margin:-8px 0;line-height:1}.streak-line{font-size:13px;font-weight:700;color:var(--dim);margin-bottom:8px}.add-channel{display:flex;gap:8px;align-items:stretch}.add-channel .input{flex:1;margin-bottom:0}.add-channel .btn.small{flex-shrink:0;padding:0 18px}.chan-del{background:none;border:none;cursor:pointer;color:var(--faint);font-size:12.5px;padding:8px 10px;margin:-6px -6px -6px 0;text-transform:none;letter-spacing:0}.video-card{text-decoration:none;color:var(--ink)}.video-card img{width:100%;height:auto;aspect-ratio:16 / 9;object-fit:cover;display:block;border-radius:0;border:2px solid var(--ink);background:var(--surface-2)}.video-title{font-size:12.5px;font-weight:600;margin-top:6px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.video-chan{font-size:11.5px;color:var(--faint);margin-top:2px}.video-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 10px}html{overscroll-behavior-y:none}body{touch-action:manipulation}button,.tabs,.list-row,.video-card,.flashcard,.group-head,.chip-state,.cta{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}input,textarea{-webkit-user-select:text;user-select:text}html,body{overflow-x:hidden}.shorts-feed{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;background:#000;overflow-y:auto;scroll-snap-type:y mandatory;overscroll-behavior:contain}.shorts-page{height:100dvh;scroll-snap-align:start;scroll-snap-stop:always;display:grid;place-items:center;position:relative}.shorts-page iframe,.shorts-poster{width:min(100vw,56.25dvh);height:100dvh;border:0;object-fit:cover;display:block}.shorts-close{position:fixed;top:calc(10px + env(safe-area-inset-top));right:14px;z-index:61;width:36px;height:36px;border-radius:50%;border:0;cursor:pointer;background:#ffffff26;color:#fff;font-size:16px;font-weight:700;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.cat-select{width:100%;margin:8px 0 4px;padding:10px 12px;border:1px solid var(--line);border-radius:0;background:var(--surface);color:var(--ink);font:inherit;font-size:16px;font-weight:600}.shorts-blocked{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;text-align:center;padding:0 24px calc(56px + env(safe-area-inset-bottom));background:linear-gradient(transparent 40%,#000000d9)}.shorts-blocked-title{color:#fff;font-weight:700;font-size:15px}.shorts-blocked-sub{color:#ffffffbf;font-size:12.5px;margin:6px 0 14px}.shorts-open{width:auto;padding:11px 22px}.quizlist-tools{display:flex;justify-content:flex-end;gap:8px;margin-bottom:8px}.selectbar-pad{height:250px}.mic-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;border-radius:0;cursor:pointer;width:100%;background:var(--accent);color:var(--accent-ink);font-size:16.5px;font-weight:800;padding:18px}.mic-btn:disabled{opacity:.45;cursor:default}.mic-btn.live{background:var(--bad);color:#fff;animation:mic-pulse 1.2s ease-in-out infinite}@keyframes mic-pulse{0%,to{opacity:1}50%{opacity:.75}}@media(prefers-reduced-motion:reduce){.mic-btn.live{animation:none}}.speech-interim{color:var(--dim);font-family:var(--serif);font-size:16px;margin-bottom:10px;min-height:22px}.btn.mic-live{border-color:var(--bad);color:var(--bad)}.chat-list{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}.chat-turn{display:flex;flex-direction:column}.chat-turn.user{align-items:flex-end}.chat-turn.assistant{align-items:flex-start}.chat-bubble{max-width:86%;border-radius:0;padding:10px 14px;font-size:15.5px;line-height:1.5}.chat-bubble.assistant{background:var(--surface);border:2px solid var(--ink);border-bottom-left-radius:0;font-family:var(--serif);font-size:16.5px}.chat-bubble.user{background:var(--accent);color:var(--accent-ink);border-bottom-right-radius:0}.chat-bubble.typing{color:var(--dim);font-family:var(--sans);font-size:13.5px;display:flex;align-items:center;gap:8px}.chat-ko{font-family:var(--sans);font-size:12.5px;color:var(--dim);margin-top:5px}.chat-bubble .tts-inline{margin-left:8px;vertical-align:2px}.chat-fb{max-width:86%;margin-top:5px;padding:8px 12px;background:var(--surface-2);border-radius:0;font-size:13px}.chat-input-row .chat-input{min-height:64px;margin-bottom:8px}.weakness-btn{margin:2px 0 14px;font-size:14px}.vod-frame{position:relative;width:100%;aspect-ratio:16 / 9;margin-bottom:12px}.vod-frame iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0;border-radius:0}.vod-question{background:var(--surface);border:1px solid var(--line);border-radius:0;padding:14px 15px;margin-top:4px}.video-thumb-wrap{position:relative}.video-quiz-btn{position:absolute;right:5px;bottom:5px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border:0;cursor:pointer;border-radius:0;background:#000000b8;color:#fff;font-size:11.5px;font-weight:700;padding:6px 9px}.video-title-link{text-decoration:none;color:var(--ink)}.doc-viewer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:var(--ground);display:flex;flex-direction:column}.doc-topbar{display:flex;align-items:center;gap:10px;padding:calc(8px + env(safe-area-inset-top)) 14px 8px;border-bottom:1px solid var(--line);background:var(--surface)}.doc-topbar .exit{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:0;color:var(--dim);font-size:15px;cursor:pointer;padding:10px 12px 10px 0}.doc-title{font-size:13.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.doc-frame{flex:1;border:0;width:100%;background:#fff}.doc-btn{padding:10px 11px}.match-entry{margin-bottom:12px}.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.match-col{display:flex;flex-direction:column;gap:8px}.match-cell{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;min-height:58px;border:1.5px solid var(--line);border-radius:0;padding:8px 10px;background:var(--surface);color:var(--ink);font-size:14px;font-weight:600;line-height:1.3;word-break:keep-all}.match-cell.en{font-family:var(--serif);font-size:15.5px}.match-cell.picked{border-color:var(--accent);background:var(--accent-soft)}.match-cell.wrong{border-color:var(--bad);background:var(--bad-soft);animation:match-shake .3s}.match-cell.gone{opacity:0;pointer-events:none}@keyframes match-shake{0%,to{transform:translate(0)}30%{transform:translate(-4px)}60%{transform:translate(4px)}}@media(prefers-reduced-motion:reduce){.match-cell.wrong{animation:none}}.fc-mnemonic{font-size:13.5px;color:var(--accent);line-height:1.45}.vocab-mnemonic{font-size:13px;color:var(--accent);margin-top:6px;line-height:1.45}.vocab-tools{display:flex;gap:8px;margin-bottom:6px}.vocab-tools .btn.small{flex:1}.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:4px}.game-card{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;background:var(--surface);border:2px solid var(--ink);border-radius:0;padding:15px 6px 13px;display:flex;flex-direction:column;align-items:center;gap:3px}.game-card:active{background:var(--surface-2)}.game-emoji{font-size:23px}.game-name{font-size:13.5px;font-weight:700}.game-desc{font-size:11px;color:var(--faint)}.rain-canvas{width:100%;height:46vh;display:block;background:var(--surface);border:1px solid var(--line);border-radius:0;margin-bottom:10px}.rain-choices{display:grid;grid-template-columns:1fr 1fr;gap:8px;min-height:108px}.rain-choice{-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;min-height:50px;background:var(--surface);color:var(--ink);border:1.5px solid var(--line);border-radius:0;padding:8px 10px;font-size:14.5px;font-weight:600;word-break:keep-all}.rain-choice:active{border-color:var(--accent);background:var(--accent-soft)}.swipe-stage{position:relative;height:46vh;min-height:300px;margin-bottom:8px;display:grid;place-items:center;border-radius:0;transition:background .2s}.swipe-stage.flash-good{background:var(--good-soft)}.swipe-stage.flash-bad{background:var(--bad-soft)}.swipe-card{position:absolute;width:82%;height:78%;background:var(--surface);border:1px solid var(--line);border-radius:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;box-shadow:none}.swipe-card.back{transform:scale(.94) translateY(10px);opacity:.55}.swipe-card.front{touch-action:none;cursor:grab}.swipe-card.front:active{cursor:grabbing}.swipe-en{font-family:var(--serif);font-size:27px;font-weight:700;text-align:center;padding:0 14px}.swipe-ko{font-size:17px;font-weight:600;color:var(--dim);text-align:center;padding:0 14px}.swipe-o,.swipe-x{position:absolute;top:14px;font-size:34px;opacity:0}.swipe-o{right:18px}.swipe-x{left:18px}.swipe-legend{display:flex;justify-content:space-between;color:var(--faint);font-size:12.5px;font-weight:600;padding:0 6px}.fb-trans{font-size:13.5px;color:var(--ink);margin-top:5px;font-weight:600}.err-tag{display:inline-block;margin-left:6px;padding:1px 8px;border-radius:0;background:var(--bad-soft);color:var(--bad);font-size:11px;font-weight:700}.filter-chip.errtype{cursor:default;color:var(--bad);background:var(--bad-soft);border-color:transparent}.dw-bad{color:var(--bad);text-decoration:line-through;text-decoration-thickness:1.5px}.dw-miss{color:var(--accent);font-weight:800;text-decoration:underline;text-underline-offset:3px}.chan-del.arm{color:var(--bad);font-weight:700}.avatar-stage{width:100%;border-radius:0;overflow:hidden;background:linear-gradient(160deg,#ffd9e4,#dbe7ff 60%,#d3f2e3);box-shadow:var(--shadow-soft)}:root[data-theme=dark] .avatar-stage{background:linear-gradient(160deg,#3a2733,#1d2740 60%,#16312a)}@media(prefers-color-scheme:dark){:root:not([data-theme=light]) .avatar-stage{background:linear-gradient(160deg,#3a2733,#1d2740 60%,#16312a)}}.avatar-stage canvas{display:block;width:100%;height:100%}.avatar-face{display:grid;place-items:center;overflow:hidden}.avatar-svg{height:92%;max-width:100%;animation:avatar-breath 3.4s ease-in-out infinite;transform-origin:50% 90%}.avatar-face.talking .avatar-svg{animation:avatar-talk .62s ease-in-out infinite}.avatar-part{transition:transform .18s ease}@keyframes avatar-breath{0%,to{transform:translateY(0) rotate(0) scale(1)}50%{transform:translateY(3px) rotate(.3deg) scale(1.006)}}@keyframes avatar-talk{0%,to{transform:translateY(0) rotate(-.7deg)}30%{transform:translateY(-3px) rotate(.6deg)}65%{transform:translateY(-1px) rotate(-.3deg)}}@media(prefers-reduced-motion:reduce){.avatar-svg,.avatar-face.talking .avatar-svg{animation:none}}.avatar-caption{background:var(--surface);border:2px solid var(--ink);border-radius:0;padding:16px 18px;margin-top:12px}.avatar-line.en{font-family:var(--serif);font-size:19px;line-height:1.5;cursor:pointer}.avatar-line.ko-sub{font-size:13.5px;color:var(--dim);margin-top:6px;line-height:1.6}.avatar-line.thinking{display:flex;align-items:center;gap:9px;color:var(--dim);font-size:14px}.avatar-ko-toggle{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:0;cursor:pointer;color:var(--accent);font-size:12.5px;font-weight:600;padding:8px 8px 2px 0}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.pane{max-width:620px;margin:0 auto}@media(min-width:720px){#root{max-width:1000px;padding:8px 32px calc(28px + var(--tabbar-h))}.home-cols{display:grid;grid-template-columns:minmax(0,11fr) minmax(0,9fr);gap:0 28px;align-items:start}.home-cols>div>.section-label:first-child{margin-top:4px}.video-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}.home-cols .video-grid{grid-template-columns:1fr 1fr}.items-groups{columns:2;column-gap:24px}.items-groups .group{break-inside:avoid;margin-bottom:10px}.selectbar-inner{max-width:640px}.rain-canvas,.swipe-stage{height:52vh}}