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#173c2409;width:min(100%,460px)}.auth-form:before{content:"";display:block;width:38px;height:4px;background:var(--green-bright);border-radius:4px;margin-bottom:22px}.auth-form h1{font-size:clamp(1.4rem,2.5vw,1.9rem);line-height:1.5;font-weight:600;margin:18px 0 4px}.auth-form .button{width:100%;margin-top:6px}.auth-form .input{background:#fcfdfb}[data-theme=dark] .auth-form .input{background:#11201b}.beta-pill{display:inline-flex;padding:4px 11px;border-radius:99px;background:#dfeee1;color:#17633d;font-size:.76rem;font-weight:700}@media (max-width: 860px){.auth-layout{grid-template-columns:1fr}.auth-art{display:none}.auth-form-wrap{min-height:100vh;padding:22px 16px;background:radial-gradient(ellipse at top,#e3f1e3,#fafbf7 60%)}[data-theme=dark] .auth-form-wrap{background:var(--bg)}.auth-form{padding:24px 20px}}.unit{margin-bottom:26px}.unit-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:12px}.unit-num{width:42px;height:42px;border-radius:14px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:900;flex-shrink:0}.lesson-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}.lesson-card{display:flex;gap:12px;align-items:center;padding:14px 16px;border-radius:18px;border:1px solid var(--border);background:var(--surface);text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}.lesson-card:hover{border-color:#a4c4af;transform:translateY(-1px)}.lesson-card.locked{opacity:.55;pointer-events:none}.lesson-card.completed{background:var(--green-softer)}.lesson-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--green-soft);color:var(--green);flex-shrink:0}.lesson-card.completed .lesson-icon{background:var(--green);color:#fff}.exercise{display:flex;flex-direction:column;gap:16px}.ex-instruction{font-weight:700;font-size:1.08rem}.ex-text{font-size:1.12rem;background:var(--surface-soft);border-radius:14px;padding:12px 16px}.ex-passage{background:var(--surface-soft);border-radius:14px;padding:16px 18px;white-space:pre-wrap;max-height:360px;overflow:auto;line-height:1.9}.ex-image{font-size:4.5rem;line-height:1;text-align:center;padding:8px}.options{display:grid;gap:10px}.options.pictures{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.option{display:flex;align-items:center;gap:12px;text-align:start;padding:13px 16px;min-height:52px;border-radius:14px;border:2px solid var(--border);background:var(--surface);cursor:pointer;font-size:1.02rem;transition:border-color .12s,background .12s;width:100%}.option:hover:not(:disabled){border-color:#9fc9ad}.option.selected{border-color:var(--green-bright);background:var(--green-softer)}.option.correct{border-color:#2f9e5e;background:#e7f6ec}.option.wrong{border-color:#c95b5b;background:#fdeeee}[data-theme=dark] .option.correct{background:#173d29}[data-theme=dark] .option.wrong{background:#3b1e20}.option:disabled{cursor:default}.option .key{width:28px;height:28px;border-radius:8px;border:1px solid var(--border);display:grid;place-items:center;font-size:.8rem;color:var(--muted);flex-shrink:0;direction:ltr}.option.picture{flex-direction:column;justify-content:center;font-size:3rem;min-height:120px}.option.picture small{font-size:.78rem;color:var(--muted)}.token-area{min-height:62px;border:2px dashed var(--border);border-radius:14px;padding:10px;display:flex;flex-wrap:wrap;gap:8px;align-items:flex-start;direction:ltr}.token-bank{display:flex;flex-wrap:wrap;gap:8px;direction:ltr}.token{padding:8px 14px;border-radius:10px;border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:1.02rem;box-shadow:0 2px 0 var(--border)}.token:hover{border-color:#9fc9ad}.token.used{visibility:hidden}.blank-input{display:inline-block;min-width:120px;width:auto;border:0;border-bottom:2px solid var(--green-bright);background:var(--green-softer);border-radius:6px 6px 0 0;padding:4px 8px;margin:0 4px;font-size:1.05rem;text-align:center}.blank-input.ok{border-bottom-color:#2f9e5e;background:#e7f6ec}.blank-input.bad{border-bottom-color:#c95b5b;background:#fdeeee}.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.dialogue-lines{display:flex;flex-direction:column;gap:8px}.bubble{max-width:85%;padding:10px 14px;border-radius:16px;background:var(--surface-soft);align-self:flex-start}.bubble b{display:block;font-size:.8rem;color:var(--green)}.bubble.right{align-self:flex-end;background:var(--green-soft)}.feedback{border-radius:16px;padding:14px 18px;display:flex;flex-direction:column;gap:6px}.feedback.ok{background:#e7f6ec;border:1px solid #b7e0c4}.feedback.bad{background:#fdf0ee;border:1px solid #f0c9c3}.feedback.neutral{background:var(--surface-soft);border:1px solid var(--border)}[data-theme=dark] .feedback.ok{background:#173d29;border-color:#2b5d40}[data-theme=dark] .feedback.bad{background:#3b1e20;border-color:#6a3036}.hint-panel{border-inline-start:4px solid var(--gold);background:#fffaf0;border-radius:10px;padding:10px 14px}[data-theme=dark] .hint-panel{background:#2d2614}.audio-player{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.synthetic-label{font-size:.72rem;color:var(--muted);background:var(--surface-soft);border-radius:99px;padding:2px 9px}.clock-svg{width:170px;height:170px;display:block;margin:auto}.block{margin-bottom:16px}.block table{border-collapse:collapse;width:100%;font-size:.95rem;direction:ltr}.block td,.block th{border:1px solid var(--line);padding:7px 10px;text-align:left}.block tr:first-child td{background:var(--surface-soft);font-weight:700}.vocab-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px}.vocab-card{border:1px solid var(--border);border-radius:16px;padding:12px 14px;background:var(--surface)}.vocab-card .term{font-weight:800;font-size:1.08rem}.article-der{color:#2368b9}.article-die{color:#b53d49}.article-das{color:#1d814b}[data-theme=dark] .article-der{color:#7fb0ec}[data-theme=dark] .article-die{color:#f09aa3}[data-theme=dark] .article-das{color:#6fd29b}.l1-toggle{font-size:.82rem}.match-top{position:sticky;top:64px;z-index:10;background:var(--bg);padding-bottom:8px}.match-progress{height:8px;border-radius:8px;background:var(--green-soft);overflow:hidden;margin:8px 0 12px}.match-progress>i{display:block;height:100%;background:var(--green);transition:width .3s}.players{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center}.player{display:flex;align-items:center;gap:10px}.player.right{flex-direction:row-reverse;text-align:end}.player .score{font-size:1.5rem;font-weight:900;color:var(--green);direction:ltr}.timer-ring{width:64px;height:64px;position:relative;display:grid;place-items:center;font-weight:900;direction:ltr}.timer-ring svg{position:absolute;top:0;right:0;bottom:0;left:0;transform:rotate(-90deg)}.timer-bar{height:6px;border-radius:6px;background:var(--green-soft);overflow:hidden}.timer-bar>i{display:block;height:100%;background:var(--green-bright);transition:width .2s linear}.timer-bar.low>i{background:#d0543f}.wheel-wrap{display:grid;place-items:center;padding:20px 0}.wheel{width:min(320px,80vw);aspect-ratio:1;border-radius:50%;position:relative;border:6px solid var(--surface);box-shadow:var(--shadow-lg);transition:transform 3.2s cubic-bezier(.17,.67,.21,1)}.wheel-pointer{width:0;height:0;border-inline:14px solid transparent;border-top:26px solid var(--ink);margin-bottom:-10px;z-index:2;position:relative}.chat{display:grid;grid-template-rows:auto 1fr auto;height:calc(100vh - 116px);min-height:420px}@media (max-width: 960px){.chat{height:calc(100vh - 204px)}}.chat-messages{overflow-y:auto;padding:12px 4px;display:flex;flex-direction:column;gap:8px}.msg{max-width:min(80%,620px);padding:8px 12px;border-radius:14px;background:var(--surface);border:1px solid var(--border);align-self:flex-start}.msg.mine{align-self:flex-end;background:var(--green-soft);border-color:#cfe7d6}[data-theme=dark] .msg.mine{border-color:#2d4f3c}.msg.help{border-style:dashed}.msg .meta{font-size:.72rem;color:var(--muted);display:flex;gap:8px;align-items:center}.msg .body{white-space:pre-wrap;overflow-wrap:anywhere;unicode-bidi:plaintext;text-align:start}.chat-input{display:flex;gap:8px;padding-top:10px;border-top:1px solid var(--line)}.chat-input textarea{min-height:48px;max-height:140px;resize:none}.player-shell{background:#0e1a15;border-radius:var(--radius);overflow:hidden}.player-shell video{width:100%;display:block;max-height:56vh;background:#000}.player-controls{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:10px 12px;background:var(--surface);border:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius)}.seg-list{display:flex;flex-direction:column;gap:6px;max-height:60vh;overflow-y:auto}.seg{display:flex;gap:10px;align-items:flex-start;padding:8px 12px;border-radius:12px;cursor:pointer;border:1px solid transparent;background:none;text-align:left;width:100%;color:inherit}.seg:hover{background:var(--surface-soft)}.seg.active{border-color:var(--green-bright);background:var(--green-softer)}.seg .t{font-size:.74rem;color:var(--muted);min-width:44px;direction:ltr;padding-top:3px}.seg .done{color:var(--green)}.word{cursor:pointer;border-radius:4px}.word:hover{background:var(--mint)}.subtitle-line{font-size:1.25rem;text-align:center;padding:14px;direction:ltr;line-height:1.7}.subtitle-line.hidden-text{filter:blur(6px);-webkit-user-select:none;user-select:none}.kbd{font-family:ui-monospace,monospace;font-size:.75rem;border:1px solid var(--border);border-bottom-width:2px;border-radius:6px;padding:0 6px;background:var(--surface);direction:ltr;display:inline-block}.rec-dot{width:12px;height:12px;border-radius:50%;background:#d0332f;animation:pulse 1s infinite}@keyframes pulse{50%{opacity:.3}}.diff-ok{color:var(--green)}.diff-missing{color:var(--danger);text-decoration:underline wavy}.diff-extra{color:var(--muted);text-decoration:line-through}.flashcard{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px}.flashcard .front{font-size:2rem;font-weight:800}.rating-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.rating-row .button{flex-direction:column;gap:0;min-height:58px;line-height:1.3}.rating-row small{font-weight:500;opacity:.85;font-size:.72rem}.bar-chart{display:flex;align-items:flex-end;gap:8px;height:120px}.bar-chart div{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end}.bar-chart i{display:block;width:100%;background:linear-gradient(#4eaa73,#c9e2cd);border-radius:8px 8px 2px 2px;min-height:3px}.bar-chart span{font-size:.7rem;color:var(--muted)}.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 16px}.kv dt{color:var(--muted)}.kv dd{margin:0;font-weight:600}code,pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;direction:ltr}pre.json{background:var(--surface-soft);border-radius:12px;padding:12px;overflow:auto;max-height:420px;font-size:.8rem;text-align:left}.attribution{font-size:.75rem;color:var(--muted)}.split{display:grid;grid-template-columns:minmax(0,290px) minmax(0,1fr);gap:16px;align-items:start}.split>aside{position:sticky;top:80px}.split.wide-right{grid-template-columns:minmax(0,1fr) minmax(0,380px)}.split.wide-right>aside{top:80px}@media (max-width: 960px){.split,.split.wide-right{grid-template-columns:1fr}.split>aside{position:static}}[dir=rtl] .flip-rtl{transform:scaleX(-1)}.popover{position:absolute;z-index:40;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);padding:12px 14px;width:min(340px,90vw)}.steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:6px;counter-reset:st}.steps li{list-style:none;font-size:.8rem;padding:6px 10px;border-radius:10px;background:var(--surface-soft);border:1px solid var(--border)}.steps li.on{background:var(--green-soft);border-color:#b9d6c2;font-weight:700}.steps li:before{counter-increment:st;content:counter(st) ". ";color:var(--green);font-weight:800}.otp-input{font-size:1.7rem;letter-spacing:.5em;text-align:center;font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.recovery-codes{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px 16px;columns:2;font-size:1rem;line-height:1.8;margin:0;text-align:left}.qr{background:#fff;border:1px solid var(--border);border-radius:12px;padding:8px;align-self:flex-start}.secret{display:inline-block;margin-top:6px;padding:6px 10px;background:var(--surface-soft);border-radius:8px;letter-spacing:.08em;word-break:break-all}.steps-list{margin:0;padding-inline-start:20px;line-height:1.6}.plan-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 16px;border:1px solid var(--border);border-radius:12px}.assignment-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;color:inherit;text-decoration:none}a.assignment-row:hover{border-color:var(--green)}.join-code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:2rem;font-weight:800;letter-spacing:.25em;color:var(--green)}.grammar-table th:first-child{color:var(--muted)}.grammar-table td,.grammar-table th{white-space:nowrap}.example-list{margin:0;padding-inline-start:20px;line-height:1.7}.mistake{display:flex;flex-direction:column;gap:4px;padding:12px 0;border-top:1px solid var(--line)}.mistake:first-of-type{border-top:0;padding-top:0}.mistake>div[dir=ltr]{display:flex;align-items:center;gap:8px}.nb-answers{display:grid;gap:6px;padding:10px 12px;background:var(--surface-soft);border-radius:10px}.nb-answers s{color:var(--danger)}.nb-answers b{color:var(--green)}.report{border:1px solid var(--border);border-radius:14px;padding:18px;background:var(--surface-soft)}.report-score{font-size:2rem;font-weight:800;color:var(--green);line-height:1}.report-score small{font-size:.9rem;color:var(--muted);font-weight:600}.report-criteria{gap:12px}.dots{display:flex;gap:4px;margin-top:4px}.dots i{width:12px;height:12px;border-radius:50%;background:var(--line)}.dots i.on{background:var(--green)}.countdown{font-size:1.8rem;color:var(--green);line-height:1.2}.finish-row{border-top:1px solid var(--line);padding-top:12px}.bar-chart.wide{gap:3px}.bar-chart.wide i{background:var(--green);opacity:.8;border-radius:3px 3px 0 0}.daily-card{border-color:var(--green)}@media (max-width: 640px){.recovery-codes{columns:1}.join-code{font-size:1.6rem}.report-criteria{grid-template-columns:repeat(2,minmax(0,1fr))}}.lp{--lp-section: 96px;--lp-head: 40px;--lp-gap: 24px;background:var(--bg);color:var(--ink);min-height:100vh;overflow-x:hidden;line-height:1.55}.lp p,.lp dd,.lp li,.lp figcaption{line-height:1.55}.lp p{margin:0 0 16px}.lp p:last-child{margin-bottom:0}.lp h1,.lp h2,.lp h3{margin:0;color:var(--ink)}.lp h1{font-size:clamp(2rem,4.4vw,3.1rem);line-height:1.3;font-weight:800;margin-bottom:24px}.lp h2{font-size:clamp(1.5rem,2.8vw,2rem);line-height:1.35;font-weight:800;margin-bottom:16px}.lp h3{font-size:1.1rem;line-height:1.4;font-weight:700;margin-bottom:8px}.lp-wrap{width:min(1120px,100% - 48px);margin-inline:auto}.lp-eyebrow{color:var(--green);font-size:.85rem;font-weight:800;margin:0 0 12px!important}.lp-section{padding-block:var(--lp-section);border-top:1px solid var(--border)}.lp-head{max-width:640px;margin-bottom:var(--lp-head)}.lp-head p:not(.lp-eyebrow),.lp-split p:not(.lp-eyebrow),.lp-narrow>p:not(.lp-eyebrow){color:var(--muted)}.lp-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px}.lp-header{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--border)}.lp-header-inner{display:flex;align-items:center;gap:24px;min-height:64px}.lp-brand{display:flex;align-items:center;gap:8px;font-weight:900;font-size:1.15rem;color:var(--green);text-decoration:none;white-space:nowrap}.lp-brand span{font-weight:600;color:var(--muted);font-size:.95rem}.lp-nav{display:flex;gap:8px}.lp-nav a{color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:8px;font-size:.95rem}.lp-nav a:hover{color:var(--green)}.lp-actions{margin-inline-start:auto;display:flex;align-items:center;gap:8px}.lp-lang{width:auto;min-height:36px;padding:2px 10px}.lp-hero{border-top:0;display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}.lp-lead{font-size:1.125rem;color:var(--muted);max-width:56ch}.lp-cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:32px 0 16px}.lp-note{color:var(--muted);font-size:.9rem}.lp-demo{margin:0}.lp-demo-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px}.lp-demo-meta{color:var(--green);font-weight:800;font-size:.85rem}.lp-demo-instruction{color:var(--muted);font-size:.95rem;margin-bottom:8px!important}.lp-demo-sentence{font-size:1.4rem;font-weight:700;margin-bottom:24px!important}.lp-gap{display:inline-block;min-width:84px;border-bottom:2px solid var(--green);color:var(--green);text-align:center}.lp-demo-options{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.lp-demo-options .option{justify-content:center;min-height:48px;padding:8px}.lp-demo-feedback{min-height:24px;margin-top:16px!important;color:var(--muted)}.lp-demo figcaption{color:var(--muted);font-size:.9rem;margin-top:12px}.lp-stats-wrap{padding-bottom:var(--lp-section)}.lp-stats{display:grid;grid-template-columns:repeat(6,1fr);margin:0;border:1px solid var(--border);border-radius:16px;background:var(--surface)}.lp-stats div{padding:24px;display:flex;flex-direction:column;gap:4px}.lp-stats div+div{border-inline-start:1px 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