:root{color-scheme:dark;--bg:#0c171c;--bg2:#122128;--panel:#18272d;--panel2:#1c3036;--line:#35464a;--txt:#f5f1e8;--muted:#bdc8c7;--accent:#e0bc7e;--accent2:#f2dfb7;--ok:#9be0bd;--bad:#ffb9a9;--round:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--txt);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}button,input,select,textarea{font:inherit}button,select{cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button,input,select,textarea{border-radius:10px;border:1px solid #56696c;background:#0c1c22;color:var(--txt);padding:.68rem .85rem;max-width:100%}input:focus-visible,button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #f5d9a3;outline-offset:3px}.f565-skip{position:absolute;left:12px;top:-80px;background:white;color:#102025;padding:10px;z-index:1000}.f565-skip:focus{top:10px}.f565-header{border-bottom:1px solid #3b4545;background:#111c22;position:relative;z-index:10}.f565-head-inner{max-width:1240px;margin:auto;padding:12px 28px;display:flex;align-items:center;justify-content:space-between;gap:18px}.f565-brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:0}.f565-brand img{object-fit:contain;width:54px;height:54px;border-radius:9px}.f565-brand strong{font-size:1.05rem;letter-spacing:.02em;display:block;line-height:1.4}.f565-brand small{font-size:.72rem;color:var(--muted);display:block}.f565-nav{display:flex;gap:22px;flex-wrap:wrap;align-items:center}.f565-nav a{text-decoration:none;color:#d1dad8;font-size:.88rem}.f565-nav a:hover,.f565-footer a:hover{color:var(--accent2)}.f565-mobile{display:none}.f565-main{min-height:65vh}.f565-main h1,.f565-main h2,.f565-main h3{line-height:1.18;letter-spacing:-.025em}.f565-main h1{font-size:clamp(2.2rem,5.1vw,4.65rem);font-weight:620;margin:14px 0}.f565-main h1 em{color:var(--accent);font-weight:450}.f565-main h2{font-size:clamp(1.6rem,3vw,2.65rem)}.f565-main h3{font-size:1.25rem}.f565-main p{color:var(--muted);margin:.6rem 0 1.2rem}.f565-eyebrow{color:var(--accent);letter-spacing:.16em;font-size:.7rem;font-weight:720}.f565-tag{display:inline-block;margin-left:12px;border-radius:999px;padding:3px 9px;color:#0d1d21;background:var(--accent);letter-spacing:0;font-size:.7rem}.f565-hero,.f565-section,.f565-pagehead,.f565-note{max-width:1210px;margin:auto;padding-left:28px;padding-right:28px}.f565-hero{padding-top:92px;padding-bottom:88px;background-image:radial-gradient(ellipse at 83% 34%,rgba(214,176,111,.13),transparent 52%)}.f565-hero h1{max-width:950px}.f565-hero p{max-width:640px;font-size:1.13rem}.f565-hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:26px}.f565-button{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#142229;border:1px solid var(--accent);border-radius:9px;padding:11px 18px;text-decoration:none;font-weight:720;gap:10px}.f565-button:hover{background:var(--accent2)}.f565-button.outline{background:transparent;color:var(--accent2)}.f565-section{padding-bottom:60px}.f565-section-heading{margin-bottom:22px}.f565-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.f565-card{border:1px solid var(--line);border-radius:var(--round);text-decoration:none;padding:28px;background:linear-gradient(130deg,#1e3036,#152329);display:block;min-height:234px;transition:transform .15s,border-color .15s}.f565-card:hover{transform:translateY(-3px);border-color:var(--accent)}.f565-card-kicker{color:var(--accent);text-transform:uppercase;font-size:.71rem;letter-spacing:.12em}.f565-card h3{font-size:1.8rem;margin:16px 0 10px}.f565-card p{max-width:400px}.f565-card-link{color:var(--accent2);font-size:.85rem;font-weight:700}.f565-note{margin-bottom:55px;color:var(--muted);font-size:.94rem}.f565-note strong{color:var(--txt)}.f565-pagehead{padding-top:58px;padding-bottom:32px}.f565-pagehead h1{font-size:clamp(2.05rem,4.5vw,3.65rem)}.f565-pagehead p{max-width:780px}.f565-layout{max-width:1210px;display:grid;grid-template-columns:minmax(260px,320px) minmax(0,1fr);gap:20px;margin:auto;padding:0 28px 72px;align-items:start}.f565-sidebar,.f565-workspace{border:1px solid var(--line);border-radius:var(--round);background:var(--bg2);padding:23px;min-width:0}.f565-sidebar{position:sticky;top:12px;max-height:calc(100vh - 24px);overflow-y:auto;scrollbar-color:#64797a var(--bg2)}.f565-sidebar>label,.f565-controls label{display:block;font-size:.82rem;color:var(--accent2);font-weight:700;margin:12px 0 5px}.f565-sidebar>label:first-child{margin-top:0}.f565-sidebar input:not([type=checkbox]),.f565-sidebar select,.f565-controls input,.f565-controls select{width:100%;min-height:42px}.f565-toggle{display:flex!important;align-items:center;gap:8px;color:var(--txt)!important}.f565-toggle input{width:auto}.f565-muted{color:var(--muted);font-size:.84rem}.f565-catalog{display:grid;gap:6px}.f565-catalog button{text-align:left;border:1px solid transparent;background:#1c3036;width:100%;padding:11px;border-radius:10px;line-height:1.35}.f565-catalog button span{display:block;color:var(--muted);font-size:.75rem;margin-top:3px}.f565-catalog button[aria-current=true]{border-color:var(--accent);color:var(--accent2);background:#2a3636}.f565-catalog button:hover{border-color:#768d8d}.f565-workspace{min-height:280px}.f565-workspace h2{font-size:1.95rem;margin-top:0}.f565-workspace h3{font-size:1.3rem;margin-top:30px}.f565-chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.f565-chip{font-size:.76rem;border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--accent2)}.f565-study-section{padding:15px 0;border-top:1px solid var(--line)}.f565-study-section h3{margin:0 0 12px}.f565-study-section ul,.f565-study-section ol{padding-left:23px}.f565-study-section li{margin-bottom:8px;color:#e4e9e6}.f565-example{padding:12px 16px;border-left:3px solid var(--accent);background:#1e3035;margin:8px 0;border-radius:0 9px 9px 0}.f565-example strong{display:block}.f565-example span{color:var(--muted);display:block;font-size:.91rem}.f565-q{border:1px solid #526365;border-radius:14px;padding:18px;margin:15px 0;background:#15252b}.f565-q h4{margin:0 0 8px;font-size:1rem}.f565-qprompt{white-space:pre-line;overflow-wrap:anywhere;color:var(--txt)!important}.f565-q label{display:flex;gap:12px;align-items:flex-start;padding:9px 12px;border:1px solid #3c5458;margin-top:8px;border-radius:8px;cursor:pointer;background:#1c3035}.f565-q input[type=radio]{margin:4px 0 0;flex:0 0 auto;accent-color:var(--accent)}.f565-q textarea{width:100%;min-height:75px;resize:vertical}.f565-q button{background:var(--accent);color:#142229;font-weight:650;margin-top:12px}.f565-feedback{border-left:3px solid var(--accent);background:#253437;padding:10px 12px;margin-top:12px;font-size:.89rem;white-space:pre-wrap;border-radius:0 9px 9px 0}.f565-feedback.is-ok{border-color:var(--ok)}.f565-feedback.is-bad{border-color:var(--bad)}.f565-feedback strong{display:block;color:var(--txt)}.f565-feedback p{margin:2px 0!important}.f565-stat{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:10px 0;color:var(--accent2)}.f565-controls{display:flex;gap:14px;align-items:end;flex-wrap:wrap;margin:14px 0 18px}.f565-controls>div{min-width:125px;flex:0 1 210px}.f565-controls .f565-grow{flex:1 1 230px}.f565-controls label{margin-top:0}.f565-word-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.f565-word{padding:17px;background:#182b31;border:1px solid var(--line);border-radius:12px}.f565-word strong{display:block;color:var(--accent2);font-size:1.12rem;overflow-wrap:anywhere}.f565-word small{color:#b5c4c7}.f565-word p{margin:6px 0!important}.f565-word .f565-english{font-style:italic;font-size:.88rem}.f565-pager{display:flex;gap:14px;justify-content:center;align-items:center;margin:22px 0}.f565-pager button{background:#25383c}.f565-exam-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.f565-exam-meta{color:var(--accent2)}.f565-exam-timer{font-variant-numeric:tabular-nums;white-space:nowrap}.f565-exam-buttons{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}.f565-exam-buttons button{background:#2c4549}.f565-exam-buttons button.f565-button{background:var(--accent)}.f565-question-number{font-size:.8rem;color:var(--accent2);font-weight:700}.f565-score{font-size:2rem;font-weight:720;color:var(--accent)}.f565-game-area{margin-top:20px;min-height:280px}.f565-game-info{font-weight:680;color:var(--accent2);margin:12px 0}.f565-pair-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.f565-pair{min-height:95px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:.91rem;overflow-wrap:anywhere}.f565-pair[data-state="selected"]{border-color:var(--accent);background:#665235}.f565-pair[data-state="done"]{background:#1d5242;color:#d9ffed;cursor:default;border-color:#499a7d}.f565-anagram{letter-spacing:.22em;font-size:1.8rem;color:var(--accent);font-weight:720;overflow-wrap:anywhere}.f565-wordcard{margin:20px auto;max-width:420px;min-height:220px;border:1px solid var(--accent);border-radius:18px;background:#1d3034;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:24px;text-align:center}.f565-wordcard .f565-card-big{font-size:2rem;color:var(--accent2)}.f565-wordcard p{max-width:100%}.f565-footer{background:#091317;border-top:1px solid var(--line);padding:34px max(28px,calc((100vw - 1154px)/2));color:var(--muted);font-size:.85rem}.f565-footer>div{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.f565-footer strong{color:var(--txt)}.f565-footer nav{display:flex;flex-wrap:wrap;gap:14px;margin:14px 0}.f565-footer a{text-decoration:none}.f565-footer p{font-size:.8rem}.f565-hidden{display:none!important}.f565-error{border:1px solid #8d5850;background:#412b2e;border-radius:10px;padding:16px;color:#fff}.f565-empty{padding:18px;color:var(--muted)}@media(max-width:1040px){.f565-nav{display:none}.f565-mobile{display:block;position:relative}.f565-mobile summary{cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:7px 11px;color:var(--accent2)}.f565-mobile[open] nav{position:absolute;right:0;top:50px;width:min(310px,88vw);box-shadow:0 14px 25px #0007;display:grid;background:#172a30;border:1px solid var(--line);padding:14px;z-index:100;border-radius:13px}.f565-mobile nav a{padding:10px;text-decoration:none}}@media(max-width:780px){.f565-hero{padding-top:55px;padding-bottom:48px}.f565-cards{grid-template-columns:1fr}.f565-layout{grid-template-columns:1fr}.f565-sidebar{position:static;max-height:400px}.f565-word-grid{grid-template-columns:1fr}.f565-pair-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.f565-head-inner,.f565-hero,.f565-pagehead,.f565-section,.f565-note{padding-left:18px;padding-right:18px}.f565-layout{padding-left:18px;padding-right:18px}.f565-sidebar,.f565-workspace{padding:18px}}@media(max-width:390px){.f565-brand img{width:40px;height:40px}.f565-brand small{font-size:.64rem}.f565-brand strong{font-size:.91rem}.f565-card{padding:18px}.f565-footer{padding:24px 16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.f565-card{transition:none}.f565-card:hover{transform:none}}

.f572-paths { grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); }
.f572-paths ul { margin: .5rem 0 0; padding-inline-start: 1.2rem; }
.f572-paths li + li { margin-block-start: .45rem; }
.f572-paths a { display: inline-block; padding-block: .35rem; color: inherit; text-decoration: underline; text-underline-offset: .2em; }
.f572-paths a:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }