:root{--bg:#f5f5f3;--surface:#fff;--text:#171717;--muted:#747474;--line:#e7e7e3;--good:#2f6b4f;--good-bg:#edf5f0;--warn:#8a6518;--warn-bg:#faf2de;--bad:#9c4040;--bad-bg:#f8eaea;--shadow:0 18px 50px rgba(0,0,0,.055)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}
.app{min-height:100vh;display:grid;grid-template-columns:224px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;padding:24px 16px 18px;border-right:1px solid var(--line);background:rgba(250,250,248,.93);backdrop-filter:blur(18px);display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text);padding:6px 8px 25px}.brand-mark{width:36px;height:36px;border-radius:11px;background:#1f1f1f;color:#fff;display:grid;place-items:center;font-size:11px;font-weight:800;letter-spacing:.04em}.brand strong{display:block;font-size:13px}.brand small{display:block;color:var(--muted);font-size:10px;margin-top:3px}.nav{display:grid;gap:3px}.nav-item{border:0;background:transparent;border-radius:10px;color:#5d5d5d;min-height:42px;padding:0 10px;display:flex;gap:11px;align-items:center;text-align:left;transition:.16s ease;font-size:13px}.nav-item:hover{background:#f0f0ed;color:var(--text)}.nav-item.active{background:#eaeae7;color:var(--text);font-weight:650}.nav-glyph{width:17px;text-align:center;color:#7c7c78}.nav-count{margin-left:auto;min-width:21px;height:21px;padding:0 6px;border-radius:999px;display:grid;place-items:center;background:#deded9;color:#555;font-size:10px;font-weight:700}.sidebar-bottom{margin-top:auto}.privacy-note{font-size:10px;line-height:1.5;color:#9a9a96;padding:12px 10px}
.main{min-width:0;padding:0 42px 70px;max-width:1480px;width:100%;margin:0 auto}.topbar{min-height:78px;display:flex;align-items:center;justify-content:space-between}.crumb{display:flex;align-items:center;gap:8px;color:#777;font-size:11px;font-weight:600}.language-dot{width:7px;height:7px;border-radius:50%;background:#404040}.muted-dot{color:#c4c4c1}.top-actions{display:flex;align-items:center;gap:9px}.script-switch{background:#eaeae7;padding:3px;border-radius:9px;display:flex}.script-btn{border:0;background:transparent;color:#777;padding:7px 9px;border-radius:7px;font-size:10px;font-weight:700}.script-btn.active{background:#fff;color:#222;box-shadow:0 1px 4px rgba(0,0,0,.07)}.icon-btn{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:10px;color:#777}.view{display:none}.view.active{display:block}
.hero{margin-top:38px;background:#1f1f1f;color:#fff;border-radius:26px;padding:44px;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(220px,.55fr);gap:32px;box-shadow:var(--shadow)}.kicker,.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:9px;font-weight:800;color:#91918d}.hero .kicker{color:#a8a8a2}.hero h1{font-size:42px;line-height:1.06;letter-spacing:-.045em;margin:14px 0 16px;font-weight:680}.hero-copy{max-width:720px;color:#bcbcb7;line-height:1.65;font-size:14px;margin:0}.hero-actions{display:flex;gap:10px;margin-top:28px}.btn{border:1px solid transparent;border-radius:11px;padding:11px 15px;font-size:12px;font-weight:700;transition:.15s}.btn.primary{background:#fff;color:#1e1e1e}.btn.secondary{background:#f0f0ed;color:#242424;border-color:#e4e4e0}.btn.tertiary{background:#fff;border-color:var(--line);color:#555}.btn.danger{background:var(--bad-bg);color:var(--bad);border-color:#efd2d2}.btn.wide{width:100%;margin-top:20px}.hero-status{display:flex;flex-direction:column;align-items:center;justify-content:center;border-left:1px solid #383838}.ring{width:122px;height:122px;border-radius:50%;background:conic-gradient(#f5f5f1 0 95%,#444 95% 100%);display:grid;place-items:center;position:relative}.ring:after{content:"";position:absolute;inset:8px;background:#1f1f1f;border-radius:50%}.ring>div{position:relative;z-index:2;text-align:center}.ring strong{display:block;font-size:27px}.ring span{color:#8d8d89;font-size:9px;text-transform:uppercase;letter-spacing:.12em}.hero-status p{margin:15px 0 3px;color:#92928e;font-size:10px}.hero-status>strong{font-size:13px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.metric-card,.level-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:19px 20px}.metric-label{display:block;color:#777;font-size:10px;font-weight:650;margin-bottom:18px}.metric-card strong,.level-card strong{display:block;font-size:27px;letter-spacing:-.035em;font-weight:650}.metric-card small,.level-card small{display:block;color:#989894;font-size:10px;margin-top:5px}.home-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:14px;margin-top:14px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px}.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.panel-head h2{font-size:17px;margin:5px 0 0;letter-spacing:-.025em}.next-panel>p,.subtle-copy{color:#777;font-size:12px;line-height:1.65}.status-pill{border-radius:999px;background:#f0f0ed;color:#62625e;font-size:9px;font-weight:750;padding:6px 9px}.next-meta{display:flex;gap:26px;border-top:1px solid var(--line);padding-top:16px;margin-top:18px;color:#8e8e89;font-size:10px}.next-meta b{color:#363633}.memory-flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:8px;align-items:center;margin-top:23px}.memory-flow div{text-align:center}.memory-flow div span{width:30px;height:30px;border-radius:9px;background:#f0f0ed;display:grid;place-items:center;margin:0 auto 8px;font-size:10px;font-weight:800}.memory-flow p{margin:0;color:#60605d;font-size:10px;line-height:1.4}.memory-flow i{font-style:normal;color:#c0c0bb}.chart-panel{margin-top:14px}.text-btn{border:0;background:transparent;color:#757570;font-size:10px;font-weight:700;padding:6px}canvas{width:100%;display:block;margin-top:20px}
.page-head{margin:43px 0 26px;max-width:800px}.page-head.split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.page-head h1{font-size:32px;letter-spacing:-.04em;margin:8px 0 9px;font-weight:650}.page-head p{margin:0;color:#7b7b76;font-size:12px;line-height:1.6}.length-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:11px}.length-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px;text-align:left;transition:.15s}.length-card:hover,.length-card.active{border-color:#aaa9a3;box-shadow:0 8px 26px rgba(0,0,0,.04)}.length-card.active{background:#1f1f1f;color:#fff}.length-card strong{display:block;font-size:13px}.length-card span{display:block;color:#999994;font-size:10px;margin-top:5px}.length-card.active span{color:#aaa}.section-divider{height:1px;background:var(--line);margin:28px 0}.topic-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:14px}.topic-head h2{font-size:20px;letter-spacing:-.025em;margin:6px 0 0}.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.topic-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;text-align:left;min-height:205px;display:flex;flex-direction:column;transition:.15s}.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#d5d5d0}.topic-card .topic-no{font-size:9px;color:#aaa;letter-spacing:.1em;text-transform:uppercase}.topic-card h3{font-size:18px;letter-spacing:-.025em;margin:18px 0 9px}.topic-card p{color:#7c7c77;font-size:11px;line-height:1.55;margin:0}.topic-card footer{margin-top:auto;padding-top:20px;display:flex;justify-content:space-between;align-items:center;color:#8c8c87;font-size:9px}.coverage-chip{background:var(--good-bg);color:var(--good);padding:5px 8px;border-radius:999px;font-weight:750}
.hidden{display:none!important}.reader-topline{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;margin:27px 0 15px}.back-btn{justify-self:start;border:0;background:transparent;color:#777;font-size:11px;padding:7px 0}.reader-meta{display:flex;gap:8px;color:#999;font-size:10px}.reader-topline .btn{justify-self:end}.reader-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(310px,.72fr);gap:14px}.reading-card,.analysis-card{background:#fff;border:1px solid var(--line);border-radius:20px}.reading-card{padding:33px}.reading-header h1{font-size:29px;letter-spacing:-.035em;margin:7px 0 8px}.reading-header p{color:#888883;font-size:11px;line-height:1.55;margin:0;max-width:700px}.text-toolbar{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:17px;margin-top:22px;color:#9a9a96;font-size:9px}.target-text{font-family:Inter,system-ui,sans-serif;font-size:19px;line-height:2.05;margin-top:15px;color:#252523;user-select:text}.word{border-radius:5px;padding:2px 1px;margin:0 1px;cursor:pointer;transition:.12s}.word:hover{background:#efefec}.word.learning.highlight{background:var(--warn-bg);color:#72510f}.word.known.highlight{background:var(--good-bg);color:var(--good)}.word.unknown.highlight{background:var(--bad-bg);color:var(--bad)}.selection-hint{margin-top:26px;border-top:1px solid var(--line);padding-top:17px;color:#999994;font-size:9px}.reading-card>.btn{margin-top:12px}.analysis-card{padding:22px;align-self:start;position:sticky;top:92px;min-height:390px}.analysis-empty{text-align:center;padding:62px 15px;color:#8b8b87}.analysis-symbol{width:45px;height:45px;border-radius:13px;background:#f0f0ed;display:grid;place-items:center;margin:0 auto 13px;color:#4f4f4c;font-weight:800}.analysis-empty h3{margin:0 0 7px;color:#40403d;font-size:14px}.analysis-empty p{font-size:10px;line-height:1.5;margin:0}.word-headline{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.word-headline h2{font-size:29px;margin:0;letter-spacing:-.03em}.word-headline small{display:block;color:#aaa;font-size:10px;margin-top:4px}.meaning{font-size:17px;font-weight:650;margin:20px 0}.morph-table{border:1px solid var(--line);border-radius:12px;overflow:hidden}.morph-row{display:grid;grid-template-columns:95px 1fr;gap:10px;padding:9px 10px;border-bottom:1px solid var(--line);font-size:10px}.morph-row:last-child{border-bottom:0}.morph-row span:first-child{color:#999}.morph-row span:last-child{font-weight:650}.context-box{margin-top:13px;background:#f7f7f5;border-radius:12px;padding:13px}.context-box p{margin:0;font-size:11px;line-height:1.55}.context-box small{display:block;color:#999;margin-top:6px}.analysis-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.analysis-actions button{border:0;border-radius:10px;padding:10px;font-size:10px;font-weight:750}.unknown-btn{background:var(--warn-bg);color:#785913}.known-btn{background:var(--good-bg);color:var(--good)}.grammar-note{margin-top:14px;border-top:1px solid var(--line);padding-top:13px}.grammar-note strong{font-size:10px}.grammar-note p{font-size:10px;line-height:1.55;color:#777;margin:6px 0 0}
.review-options{display:flex;gap:10px;align-items:end}.select-label{display:grid;gap:5px;color:#999;font-size:9px}select,.search{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 11px;color:#444;font-size:10px;outline:none}.check-row{display:flex;align-items:center;gap:7px;color:#777;font-size:10px;padding-bottom:9px}.review-shell{max-width:730px;margin:20px auto 0}.review-progress{display:flex;justify-content:space-between;color:#999;font-size:9px;margin-bottom:9px}.review-bar{height:4px;background:#e9e9e5;border-radius:999px;overflow:hidden;margin-bottom:15px}.review-bar span{display:block;height:100%;background:#3b3b39}.flashcard{min-height:360px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:38px;display:grid;place-items:center;text-align:center}.card-label{font-size:9px;text-transform:uppercase;letter-spacing:.1em;color:#aaa}.card-main{font-size:34px;letter-spacing:-.035em;font-weight:650;margin:18px 0}.card-example{margin-top:24px;color:#70706b;font-size:12px;font-style:italic}.card-hint{color:#aaa;font-size:9px;margin-top:7px}.flashcard button{margin-top:22px}.rating-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:10px}.rating-row button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px;font-size:10px;font-weight:700}.rating-row .again{color:var(--bad)}.rating-row .easy{color:var(--good)}.review-empty{background:#fff;border:1px dashed #d6d6d1;border-radius:20px;padding:50px;text-align:center;color:#81817d}.review-empty h3{color:#333;font-size:16px;margin:0 0 8px}.review-empty p{font-size:10px;line-height:1.6}
.lexicon-actions{display:flex;gap:8px}.search{min-width:210px}.lexicon-table{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.lex-row{display:grid;grid-template-columns:1.15fr 1.05fr .75fr .75fr .65fr;gap:14px;align-items:center;padding:13px 17px;border-bottom:1px solid var(--line);font-size:10px}.lex-row:last-child{border-bottom:0}.lex-row.header{background:#fafaf8;color:#999;font-size:9px;font-weight:700}.lex-target strong{display:block;font-size:14px}.lex-target small{display:block;color:#aaa;margin-top:3px}.lex-state{display:inline-flex;width:max-content;padding:5px 7px;border-radius:999px;font-size:9px;font-weight:750}.lex-state.known{background:var(--good-bg);color:var(--good)}.lex-state.learning{background:var(--warn-bg);color:var(--warn)}.empty-row{padding:35px;text-align:center;color:#999;font-size:10px}
.progress-top{display:grid;grid-template-columns:230px 1fr;gap:14px;margin-bottom:14px}.level-card{display:flex;flex-direction:column;justify-content:center}.level-card strong{font-size:48px}.progress-chart-card{min-width:0}.grammar-list{display:grid;gap:13px;margin-top:20px}.grammar-item{display:grid;grid-template-columns:180px 1fr 42px;gap:13px;align-items:center;font-size:10px}.grammar-track{height:7px;background:#efefec;border-radius:999px;overflow:hidden}.grammar-fill{height:100%;background:#3a3a37;border-radius:999px}.grammar-item b{text-align:right;font-size:9px;color:#666}.history-panel{margin-top:14px}.history-row{display:grid;grid-template-columns:1.3fr .5fr .6fr .6fr;gap:15px;padding:12px 0;border-bottom:1px solid var(--line);font-size:10px}.history-row:last-child{border-bottom:0}.history-row span{color:#888}.history-row strong{font-weight:650}
.import-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:14px}.textarea-label{display:grid;gap:9px;color:#777;font-size:10px}textarea{width:100%;resize:vertical;border:1px solid var(--line);border-radius:13px;padding:15px;background:#fafaf8;color:#333;outline:none;line-height:1.65}textarea:focus{border-color:#b9b9b4}.import-actions{display:flex;gap:9px;margin-top:12px}.coverage-big{font-size:45px;font-weight:650;letter-spacing:-.05em;margin:8px 0}.coverage-breakdown{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:18px}.coverage-stat{background:#f7f7f4;border-radius:11px;padding:11px}.coverage-stat strong{display:block;font-size:15px}.coverage-stat span{font-size:8px;color:#999}.import-preview{margin-top:18px;padding-top:17px;border-top:1px solid var(--line);font-size:12px;line-height:1.9}.import-preview mark{border-radius:4px;padding:1px 2px;background:var(--bad-bg);color:var(--bad)}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.setting-row{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:12px 0;font-size:10px}.setting-row:first-of-type{margin-top:18px}.setting-row span{color:#888}.setting-row strong{font-weight:650}.danger-zone{display:flex;gap:8px;margin-top:15px}.add-language-panel{background:#fafaf8}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#202020;color:#fff;border-radius:999px;padding:10px 14px;font-size:10px;font-weight:650;opacity:0;pointer-events:none;transition:.2s;z-index:99}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:1050px){.app{grid-template-columns:76px 1fr}.sidebar{padding:20px 11px}.brand span:last-child,.nav-item span:not(.nav-glyph):not(.nav-count),.privacy-note{display:none}.brand{justify-content:center}.nav-item{justify-content:center}.nav-count{position:absolute;margin:0 0 25px 28px}.sidebar-bottom{display:grid}.main{padding:0 26px 55px}.hero{grid-template-columns:1fr}.hero-status{border-left:0;border-top:1px solid #383838;padding-top:24px}}
@media(max-width:780px){.app{display:block}.sidebar{position:fixed;bottom:0;top:auto;width:100%;height:66px;border-right:0;border-top:1px solid var(--line);padding:7px 10px;z-index:50}.brand,.sidebar-bottom{display:none}.nav{display:grid;grid-template-columns:repeat(6,1fr);height:100%}.nav-item{min-height:auto;padding:0}.nav-count{position:absolute;margin:0 0 27px 25px}.main{padding:0 16px 95px}.topbar{min-height:64px}.hero{padding:29px 24px;margin-top:20px}.hero h1{font-size:32px}.metric-grid{grid-template-columns:1fr 1fr}.home-grid,.import-layout,.settings-grid,.reader-layout,.progress-top{grid-template-columns:1fr}.length-grid{grid-template-columns:1fr 1fr}.topic-grid{grid-template-columns:1fr}.page-head.split{align-items:flex-start;flex-direction:column}.reader-topline{grid-template-columns:1fr 1fr}.reader-meta{display:none}.reading-card{padding:23px}.analysis-card{position:static}.lex-row{grid-template-columns:1fr 1fr}.lex-row>*:nth-child(3),.lex-row>*:nth-child(4){display:none}.grammar-item{grid-template-columns:110px 1fr 35px}.history-row{grid-template-columns:1fr 1fr}.history-row>*:nth-child(3),.history-row>*:nth-child(4){display:none}}

/* V2: multi-language */
.language-select{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 10px;color:#444;font-size:10px;font-weight:700;outline:none;min-width:138px}
.language-select:focus{border-color:#b7b7b1}
.script-switch.is-hidden{display:none}
.module-list{display:grid;gap:8px;margin-top:16px}.module-list span{display:flex;align-items:center;justify-content:space-between;background:#f3f3f0;border-radius:10px;padding:10px 12px;font-size:10px;font-weight:650}.module-list span:after{content:'actif';font-size:8px;color:var(--good);background:var(--good-bg);border-radius:999px;padding:4px 7px;text-transform:uppercase;letter-spacing:.08em}
@media(max-width:780px){.language-select{min-width:112px;max-width:145px}.script-switch{display:none}}