:root{--bg:#111214;--card:#1b1d20;--line:#2c2f34;--text:#f1f2f3;--muted:#9a9fa6;--lime:#BDF02E;--green:#33691E;--red:#ff7a66;--amber:#f0c64a}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 "Gill Sans","Gill Sans MT","Gill Sans Nova",Calibri,"Trebuchet MS",sans-serif}
a{color:var(--lime);text-decoration:none}
.wrap{max-width:760px;margin:0 auto;padding:16px}
.wide{max-width:1180px}
header.top{display:flex;justify-content:space-between;align-items:center;padding:6px 0 14px}
.brand{font-weight:700;letter-spacing:.04em;text-transform:uppercase;font-size:14px;color:var(--text)}
.brand b{color:var(--lime)}
nav a{margin-left:14px;color:var(--muted);font-size:14px}
nav a.on{color:var(--text)}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px;margin-bottom:14px}
h1{font-size:28px;margin:0 0 4px;line-height:1.2}
h2{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 12px;font-weight:600}
.muted{color:var(--muted)}.small{font-size:14px}
.btn{display:inline-block;background:var(--lime);color:#17210a;font-weight:700;border:0;border-radius:12px;padding:12px 20px;font:inherit;font-weight:700;cursor:pointer}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn.sm{padding:6px 12px;border-radius:9px;font-size:14px}
.hero{display:flex;gap:16px;align-items:center;justify-content:space-between}
.ring{position:relative;width:96px;height:96px;flex:none}
.ring svg{transform:rotate(-90deg)}
.ring div{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:700;font-size:22px;line-height:1}
.ring div span{font-size:11px;color:var(--muted);font-weight:400;margin-top:3px}
.streak{color:var(--lime);font-weight:600}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.checklist form{display:block}
.chk{display:flex;align-items:center;gap:12px;width:100%;background:none;border:0;border-top:1px solid var(--line);color:var(--text);font:inherit;padding:11px 0;text-align:left;cursor:pointer}
.checklist form:first-of-type .chk{border-top:0}
.box{width:22px;height:22px;border-radius:7px;border:2px solid var(--muted);flex:none;display:flex;align-items:center;justify-content:center;color:#17210a;font-weight:900;font-size:14px}
.chk.on .box{background:var(--lime);border-color:var(--lime)}
.chk.static{cursor:default}
.kims{display:flex;flex-wrap:wrap;gap:8px}
.kim{border:1px solid var(--line);border-radius:10px;padding:6px 10px;color:var(--text);font-size:14px;min-width:64px;text-align:center}
.kim small{display:block;color:var(--muted);font-size:11px}
.bars{display:flex;gap:8px;align-items:flex-end;height:90px}
.bars div{flex:1;text-align:center;font-size:12px;color:var(--muted)}
.bars i{display:block;background:var(--green);border-radius:6px 6px 2px 2px;min-height:3px;margin-bottom:4px}
.bars .today i{background:var(--lime)}
.tag{display:inline-block;font-size:12px;border-radius:999px;padding:2px 10px;background:var(--line);color:var(--muted);margin-right:6px}
.tag.lime{background:var(--lime);color:#17210a;font-weight:700}
.statement p{margin:0 0 10px}.statement p.opt{margin:0 0 4px}
table.match{border-collapse:collapse;width:100%;margin:8px 0 12px;font-size:15px}
table.match td,table.match th{border:1px solid var(--line);padding:7px 9px;vertical-align:top;text-align:left}
table.match th{font-size:12px;color:var(--muted);letter-spacing:.04em}
.grid9{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0 12px}
.grid9 div{border:1px solid var(--line);border-radius:8px;padding:8px;font-size:14px;min-height:58px}
.grid9 b{display:block;color:var(--lime);font-size:12px}
.answer{display:flex;gap:10px;margin-top:16px}
.answer input{flex:1;min-width:0;background:var(--bg);border:1px solid var(--line);border-radius:12px;color:var(--text);font:inherit;font-size:20px;padding:10px 14px;letter-spacing:.08em}
.answer input:focus{outline:2px solid var(--lime)}
.verdict{font-size:22px;font-weight:700;margin-bottom:6px}
.ok{color:var(--lime)}.bad{color:var(--red)}.part{color:var(--amber)}
.pair{display:flex;gap:24px;margin:8px 0 2px}.pair b{font-size:20px;letter-spacing:.08em}
.expl{border-left:3px solid var(--lime);padding-left:14px;margin-top:6px}.expl p{margin:0 0 6px}
table.adm{border-collapse:collapse;width:100%;font-size:14px}
table.adm td,table.adm th{padding:6px 8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
table.adm th{color:var(--muted);font-weight:600;font-size:12px}
.scroll{overflow-x:auto}
.tog{background:none;border:1px solid var(--line);border-radius:7px;width:30px;height:26px;color:#17210a;font-weight:900;cursor:pointer}
.tog.on{background:var(--lime);border-color:var(--lime)}
.heat td.c{text-align:center;min-width:38px;border-radius:0;color:#10160b;font-weight:600}
.h0{background:#3a2422;color:var(--red)!important}.h1{background:#8a6f1f}.h2{background:#6f9a25}.h3{background:var(--lime)}.hn{color:var(--muted)!important;background:transparent}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.filters a{border:1px solid var(--line);border-radius:999px;padding:4px 12px;color:var(--muted);font-size:14px}
.filters a.on{background:var(--lime);color:#17210a;border-color:var(--lime);font-weight:700}
.warn{color:var(--red)}
input[type=text],select{background:var(--bg);border:1px solid var(--line);border-radius:9px;color:var(--text);font:inherit;padding:7px 10px}
code{font-size:12px;color:var(--muted);user-select:all}
@media(max-width:520px){h1{font-size:23px}.ring{width:80px;height:80px}.ring svg{width:80px;height:80px}}
.cardq{font-size:26px;font-weight:700;text-align:center;padding:22px 6px 26px;line-height:1.3}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.optbtn{background:var(--bg);border:1px solid var(--line);border-radius:14px;color:var(--text);font:inherit;font-size:18px;padding:18px 10px;cursor:pointer;min-height:68px}
.optbtn:active{border-color:var(--lime)}
.flash{padding:12px 18px}.flash.good{border-color:#3d5a14}.flash.wrong{border-color:#6b2f28}
@media(max-width:420px){.opts{grid-template-columns:1fr}.cardq{font-size:22px}}

.install{position:relative;padding-right:44px}
.install .x{position:absolute;top:8px;right:10px;background:none;border:0;color:var(--muted);font-size:24px;cursor:pointer;line-height:1}
.ios-share{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:0 6px}
.tgcard{display:flex;gap:14px;align-items:center;justify-content:space-between}
.tgcard form{flex:none}
/* «Уравнения» */
.rxq{font-size:24px}.rxarrow{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;line-height:1}
.rxcond{font-size:12px;font-weight:400;color:var(--muted);margin-bottom:-2px}
.rxhint{text-align:center;color:var(--muted);margin:-14px 0 14px;font-style:italic}
input.rxin{width:100%;box-sizing:border-box;font-size:20px;padding:12px 14px}
.rxprev{min-height:28px;font-size:20px;padding:8px 4px}
.rxkeys{display:grid;grid-template-columns:repeat(9,1fr);gap:6px;margin:4px 0 12px}
.rxkeys button{background:var(--bg);border:1px solid var(--line);border-radius:9px;color:var(--text);font:inherit;font-size:18px;padding:10px 0;cursor:pointer}
.rxeq{font-size:18px;margin:6px 0 4px}
@media(max-width:420px){.rxq{font-size:20px}.rxkeys{gap:4px}.rxkeys button{font-size:16px;padding:9px 0}}