:root{--ink:#243f35;--paper:#f7f6f0;--muted:#6f7b72;--line:#dfE3d8;--lime:#d8eb9a;--white:#fffefa}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}button,input,select{font:inherit}button{cursor:pointer;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:10px;padding:11px 17px;transition:background .15s}button:hover{background:#edf1e5}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #6e9141;outline-offset:3px}button:disabled{cursor:default;opacity:.75}h1,h2,h3,p{margin-top:0}h1,h2{font-family:Georgia,serif;font-weight:400;line-height:1.15;letter-spacing:-1.5px}h1{font-size:clamp(35px,4vw,54px)}h2{font-size:36px}h3{font-size:22px;line-height:1.3;margin-bottom:12px}.muted,small{color:var(--muted)}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;margin-bottom:18px}.brand{font:italic 700 30px Georgia,serif;display:flex;align-items:center;gap:13px;margin-bottom:52px}.brand span{font:600 18px system-ui;letter-spacing:-.5px}.login{max-width:620px;margin:6vh auto;padding:30px}.login h1{font-size:54px}.login form{max-width:390px;margin-top:30px}label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}input,select{border:1px solid var(--line);background:var(--white);color:var(--ink);padding:12px;border-radius:9px}input{width:100%;margin-bottom:15px}.primary{background:var(--ink);color:white;border-color:var(--ink)}.primary:hover{background:#365548}.login .primary{width:100%}#loginError{color:#9c3529;margin-top:10px}#app:not([hidden]){display:flex;min-height:100vh}aside{width:255px;position:fixed;inset:0 auto 0 0;padding:38px 25px;background:#efF1e8;border-right:1px solid var(--line);display:flex;flex-direction:column}aside .brand{margin-bottom:56px}nav{display:grid;gap:8px}nav button{border:0;background:transparent;text-align:left;padding:13px 15px;font-weight:500}nav button.active{background:var(--ink);color:white}.aside-bottom{margin-top:auto;padding:30px 10px 0}.aside-bottom p{font:italic 24px/1.3 Georgia,serif}.aside-bottom button{background:transparent;border:0;padding:0;color:var(--muted)}.workspace{margin-left:255px;width:calc(100% - 255px);padding:30px 5vw}header{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:38px}.private{font-size:10px;letter-spacing:1px}.hero{display:flex;gap:24px;align-items:center;justify-content:space-between;margin-bottom:32px}.hero p{max-width:580px}.streak{min-width:115px;border:1px solid var(--line);border-radius:50%;width:115px;height:115px;text-align:center;padding:19px 0;background:#ecefdf}.streak strong{display:block;font:36px Georgia,serif}.streak span{font-size:12px}.lesson-banner{background:var(--ink);color:white;padding:25px 28px;border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:35px}.lesson-banner p{margin:0;color:#d0dccf;font-size:13px}.lesson-banner h3{margin:0 0 5px}.lesson-banner button{background:var(--lime);border-color:var(--lime);white-space:nowrap}.section-head{display:flex;align-items:center;justify-content:space-between;margin:30px 0 18px}.section-head h3{font-size:17px;margin:0}.section-head span{font-size:12px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:24px;position:relative}.card.idiom{background:#f0f2e5}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.tag{font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#70816a}.card-actions{display:flex;gap:7px}.card-actions button{padding:3px 9px;background:transparent;font-size:16px}.card h3{font:28px Georgia,serif;margin-bottom:6px;letter-spacing:-.3px}.pos{font-size:12px;font-style:italic;color:var(--muted)}.meaning{margin:16px 0}.example{padding:12px 15px;border-left:2px solid #b6c693;margin:0;background:#f6f7ef;color:#53654e;font-size:14px}.tools{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.tools input{margin:0;flex:1;min-width:180px}.empty{border:1px dashed #bcc6ad;border-radius:15px;padding:40px;text-align:center}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:25px 0}.stat{padding:25px;background:var(--white);border:1px solid var(--line);border-radius:14px}.stat strong{display:block;font:42px Georgia,serif}.stat span{font-size:13px;color:var(--muted)}progress{width:100%;accent-color:var(--ink)}.profile{max-width:450px;margin:30px 0}.link{color:var(--ink);text-underline-offset:4px}footer{color:var(--muted);font-size:11px;border-top:1px solid var(--line);padding:25px 0;margin-top:40px}dialog{border:1px solid var(--line);border-radius:18px;padding:32px;width:min(560px,94vw);color:var(--ink);background:var(--paper)}dialog::backdrop{background:#172d25a8}dialog h2{font-size:34px;letter-spacing:-.5px;margin:15px 0 25px}.options{display:grid;gap:10px}.options button{text-align:left}.options button.correct{background:#dcecc4;border-color:#7c9e50}.options button.wrong{background:#f5ded7;border-color:#bc7662}.feedback{margin:20px 0;padding:15px;background:#e9eedc}.text-button{background:transparent;border:0;font-size:13px;margin-top:18px;color:var(--muted)}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:13px 22px;background:var(--ink);color:white;border-radius:10px;z-index:10;display:none;max-width:90vw}[hidden]{display:none!important}@media(min-width:1500px){.cards{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:850px){aside{position:static;width:auto;padding:20px}.brand{margin-bottom:20px}aside .brand{margin-bottom:20px}aside .eyebrow,.aside-bottom{display:none}nav{display:flex;overflow:auto;gap:6px}nav button{white-space:nowrap;font-size:12px;padding:10px}#app:not([hidden]){display:block}.workspace{margin:0;width:100%;padding:20px}header{margin-bottom:25px}h1{font-size:38px}.hero{gap:12px}.streak{min-width:85px;width:85px;height:85px;padding:9px 0}.streak strong{font-size:30px}.lesson-banner{padding:22px;align-items:start;flex-direction:column}.cards{gap:12px}.card{padding:19px}.stats{gap:9px}.stat{padding:16px}.stat strong{font-size:32px}.private{display:none}}@media(max-width:540px){.cards{grid-template-columns:1fr}.login h1{font-size:42px}.hero .streak{display:none}.stats{grid-template-columns:1fr 1fr}.tools select{width:100%}.card h3{font-size:27px}}
header{align-items:center;gap:12px}.language-switch{display:inline-flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:12px;background:#edf0e6}.language-switch button{font-size:13px;line-height:1.25;padding:7px 13px;border-color:transparent;background:transparent}.language-switch button[aria-pressed=true]{background:var(--ink);color:white}.translation{display:block;margin-top:5px;color:#52604f;font-size:13px}