:root{--ink:#1d3933;--muted:#727e76;--green:#204e42;--paper:#f6f7f1;--line:#dce2d6;--lime:#ddeb8f}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.6 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}aside{position:fixed;width:240px;inset:0 auto 0 0;padding:38px 25px;background:#edf0e7;border-right:1px solid var(--line);display:flex;flex-direction:column}.brand{font-size:32px;font-weight:700;text-decoration:none;display:flex;align-items:center;gap:10px;color:var(--ink);letter-spacing:-1px}.brand-icon{display:grid;place-items:center;width:42px;height:42px;background:var(--green);color:white;border-radius:12px;font-family:Georgia}.beta{font:10px monospace;border:1px solid #a5b29f;border-radius:4px;padding:1px 4px;align-self:flex-start}.aside-label{margin-top:60px;font:10px monospace;letter-spacing:1.5px;color:var(--muted)}nav{display:grid;gap:8px;margin-top:18px}nav a{padding:12px;border-radius:8px;color:#56685b;text-decoration:none}nav a.active{background:var(--green);color:white}.aside-foot{margin-top:auto;font-size:12px}.aside-foot small{color:var(--muted)}.dot{display:inline-block;background:#69845e;width:6px;height:6px;border-radius:50%;margin-right:6px}main{margin-left:240px;padding:0 48px;max-width:1550px}header{height:90px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);gap:12px}.header-badge{font:10px monospace;letter-spacing:1px}#app{padding:36px 0 24px;min-height:calc(100vh - 160px)}h1{font-size:32px;letter-spacing:-1px;margin:5px 0 9px;line-height:1.3}h2{font-size:20px;margin:0 0 15px}h3{margin:0 0 8px;font-size:16px}p{margin:8px 0 18px}.muted{color:var(--muted)}.eyebrow{font:11px monospace;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted)}.topline{display:flex;justify-content:space-between;align-items:end;margin-bottom:28px;gap:20px}.pill{display:inline-block;font-size:11px;padding:4px 9px;border-radius:30px;background:#e8eddf}.hero{display:grid;grid-template-columns:1.5fr 1fr;background:var(--green);color:#f5f7e9;border-radius:18px;padding:34px 38px;gap:20px;position:relative;overflow:hidden}.hero .eyebrow{color:#b3c8a8}.hero h2{font-size:29px;line-height:1.4;max-width:430px;margin:12px 0}.hero p{color:#c9d7c6}.hero-art{display:flex;align-items:center;justify-content:center}.orbit{border:1px solid #69836b;width:190px;height:190px;border-radius:50%;display:grid;place-items:center;transform:rotate(-12deg);position:relative}.orbit:after{content:'COLLOCATIONS';font:10px monospace;letter-spacing:3px;position:absolute;bottom:18px}.orbit span{font:italic 68px Georgia;color:var(--lime)}.orbit b{position:absolute;right:-25px;top:15px;font:12px monospace;color:#26483a;background:var(--lime);padding:7px 12px;border-radius:7px;transform:rotate(12deg)}button,.button{cursor:pointer;border:0;border-radius:8px;padding:12px 20px;background:var(--green);color:white;font:inherit;text-decoration:none;display:inline-block;min-height:44px}button:hover,.button:hover{filter:brightness(1.08)}button:disabled{opacity:.5;cursor:default}.hero .button{background:var(--lime);color:#244336;font-weight:600}.secondary{background:#e9eee3;color:var(--ink);border:1px solid var(--line)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:24px 0 32px}.stat,.card{padding:23px;background:#fffef9;border:1px solid var(--line);border-radius:12px}.stat strong{display:block;font:34px Georgia;margin:6px 0}.stat span{font-size:12px;color:var(--muted)}.cols{display:grid;grid-template-columns:1.3fr 1fr;gap:22px}.row{display:flex;align-items:center;justify-content:space-between;gap:14px}.stack{display:grid;gap:14px}.word-row{padding:15px 0;border-bottom:1px solid var(--line)}.word-row:last-child{border-bottom:0}.word-row strong{font-family:Georgia;font-size:20px}.tiny{font-size:12px}.level-bars{display:flex;gap:5px;margin:22px 0 9px}.level-bars span{height:11px;flex:1;background:#e3e9db;border-radius:3px}.level-bars span.on{background:#93ae75}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.notice{background:#ecf0e4;border-left:3px solid #8fa56c;padding:13px 16px;margin:18px 0;font-size:13px}.error{background:#fff0e7;border-color:#b76b42}.good{background:#edf3da}.quiz{max-width:760px;margin:auto}.quiz h2{font:38px Georgia;margin:20px 0}.prompt{font-size:22px;margin:24px 0}.choices{display:grid;gap:12px}.choices button{text-align:left;background:#fffef9;color:var(--ink);border:1px solid var(--line)}input,textarea,select{font:inherit;color:var(--ink);background:white;border:1px solid #bac6b4;border-radius:7px;padding:11px;max-width:100%}input:not([type=range]),textarea{width:100%}textarea{min-height:200px;font:13px/1.6 ui-monospace,monospace}label{display:block;margin:14px 0 5px;font-size:13px}details{border-top:1px solid var(--line);padding:13px 0}summary{cursor:pointer}a{color:var(--green)}.word-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:22px}.word-grid .card{min-width:0}.word-grid h2{font:27px Georgia;margin:7px 0}.example{font-family:Georgia;font-size:18px}.tag{font:11px monospace;color:#667a51}.chart{display:flex;height:100px;align-items:end;gap:12px;padding-top:10px;margin-bottom:22px}.day{flex:1;text-align:center;font-size:10px;color:var(--muted)}.bar{background:#a7bc7d;border-radius:4px 4px 0 0;min-height:3px;margin-bottom:5px}footer{padding:20px 0;color:var(--muted);font:10px monospace;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}#toast{position:fixed;bottom:24px;right:24px;background:var(--ink);color:white;border-radius:8px;padding:12px 20px;display:none;z-index:5}progress{width:100%;accent-color:var(--green);height:6px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #a1b651;outline-offset:3px}
@media(min-width:1450px){main{margin-right:auto}}@media(max-width:1050px){aside{width:190px;padding:30px 16px}main{margin-left:190px;padding:0 25px}.stats{gap:9px}.stat{padding:15px}.hero{padding:28px}.hero-art .orbit{width:145px;height:145px}.cols{grid-template-columns:1fr}}@media(max-width:700px){aside{position:static;width:auto;padding:18px 18px 9px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:25px}.brand-icon{width:32px;height:32px}.aside-label,.aside-foot{display:none}nav{display:flex;overflow:auto;gap:5px;margin-top:14px}nav a{white-space:nowrap;font-size:12px;padding:8px}main{margin:0;padding:0 18px}header{height:55px;font-size:10px}.desktop{display:none}#app{padding-top:25px}h1{font-size:27px}.hero{padding:25px;grid-template-columns:1fr}.hero-art{display:none}.hero h2{font-size:25px}.stats{grid-template-columns:repeat(2,1fr);margin:18px 0}.stat strong{font-size:29px}.topline{align-items:start}.topline>.pill{display:none}.word-grid{grid-template-columns:1fr}.card{padding:20px}footer{font-size:9px}.quiz h2{font-size:32px}.prompt{font-size:20px}}