/* SURBIOLOGY · матричные процессы. Тёмно-лесной фон, ДНК-полоска, лаймовая плашка записи.
   Сверху тренажёр (сцена на мятной подложке + пульт справа), ниже — полная теория карточками. Без теней. */
:root{
  --forest-0:#03201A; --forest-1:#0A3A28; --forest-2:#0F5A36;
  --mint:#F4FCEC; --card:#FBFEF7; --card-alt:#E1F6CF; --line:#BDE7A2;
  --lime:#B6F03C; --leaf:#22C55E; --emerald:#0F7A4A; --ink:#06291D; --text:#1F4A36; --head:#073B26;
  --pale:#D3EEDD; --white:#F2FBEA; --soft:#7FE0A8; --amber:#E9A23B; --bad:#E0614F; --sky:#4FB3E8; --violet:#8E7BD6; --pink:#E37BB0;
  --nA:#E0614F; --nT:#E9A23B; --nU:#E9A23B; --nG:#4FB3E8; --nC:#22C55E;
  --display:"Unbounded",Verdana,sans-serif; --body:"Manrope",Arial,system-ui,sans-serif; --hand:"Caveat","Brush Script MT",cursive;
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{background:var(--forest-0);scroll-behavior:smooth}
body{margin:0;min-height:100vh;color:var(--pale);font:16px/1.5 var(--body);background:linear-gradient(135deg,var(--forest-0),var(--forest-1) 55%,var(--forest-2)) fixed var(--forest-0);overflow-x:hidden}
body::after{content:"";position:fixed;left:0;top:0;bottom:0;width:12px;z-index:30;pointer-events:none;background:repeating-linear-gradient(180deg,var(--lime) 0 16px,var(--leaf) 16px 32px,var(--emerald) 32px 48px)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:41;background:var(--lime)}
button,input,select{font-family:inherit}
button:focus-visible,input:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--lime);outline-offset:2px}
.promo{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;display:block;text-decoration:none;background:linear-gradient(90deg,var(--lime),#8BE35A 60%,var(--leaf));color:var(--ink);padding:10px max(16px,env(safe-area-inset-right,0px)) 10px max(30px,calc(env(safe-area-inset-left,0px) + 24px));font:800 clamp(11px,1.6vw,14px)/1.35 var(--body);letter-spacing:.06em;text-align:center}
.promo b{background:var(--ink);color:var(--lime);padding:2px 10px;border-radius:30px;white-space:nowrap;display:inline-block;margin:2px 0}
.page{padding-block:18px 60px;padding-left:max(30px,calc(env(safe-area-inset-left,0px) + 24px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.wrap{max-width:1320px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.crumbs{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb{color:var(--pale);text-decoration:none;border:1.5px solid rgba(211,238,221,.3);border-radius:40px;padding:7px 14px;font-weight:700;font-size:14px}
.crumb:hover{border-color:var(--lime)}
.logo{margin-left:auto;font:800 13px/1 var(--display);letter-spacing:.2em;color:var(--ink);background:linear-gradient(90deg,var(--lime),var(--leaf));padding:9px 16px;border-radius:40px;text-decoration:none}
.head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
h1{margin:0;font:800 clamp(28px,5vw,50px)/1.02 var(--display);color:var(--white);text-wrap:balance}
h1 span{color:var(--lime)}
.eq{font:700 clamp(14px,1.8vw,17px)/1.3 var(--body);color:var(--soft);background:rgba(3,32,26,.45);border:1.5px solid rgba(182,240,60,.3);border-radius:16px;padding:10px 14px}
.eq b{color:var(--lime)}
.jump{color:var(--lime);font-weight:800;text-decoration:none;border-bottom:2px solid rgba(182,240,60,.4)}
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab{border:2px solid rgba(211,238,221,.3);background:transparent;color:var(--pale);border-radius:40px;padding:10px 18px;font:800 15px var(--body);cursor:pointer;text-align:left}
.tab[aria-selected="true"]{background:var(--lime);border-color:var(--lime);color:var(--ink)}
.tab small{display:block;font:600 11px var(--body);opacity:.75;letter-spacing:.04em}
.app{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:16px;align-items:start}
.app.full{grid-template-columns:1fr}
.stage{background:var(--mint);border:2px solid var(--line);border-radius:26px;overflow:hidden;position:relative;color-scheme:light;color:var(--text)}
.stage svg{display:block;width:100%;height:auto;user-select:none;-webkit-user-select:none}
.scroller{overflow-x:auto;-webkit-overflow-scrolling:touch}
.stage.zoomed .scroller svg{min-width:900px}
.zoombtn{display:none}
@media (max-width:760px){.zoombtn{display:inline-block}}
.toolbar{display:flex;gap:6px;flex-wrap:wrap;align-items:center;padding:10px 12px;background:var(--card-alt);border-top:2px solid var(--line)}
.tb{border:2px solid var(--line);background:#fff;color:var(--head);border-radius:30px;padding:7px 12px;font:800 13px var(--body);cursor:pointer}
.tb[aria-pressed="true"],.tb.on{background:var(--emerald);border-color:var(--emerald);color:#fff}
.tb:disabled{opacity:.45;cursor:default}
.tbsep{flex:1}
.hint{font:600 13px var(--body);color:var(--text)}
.panel{display:flex;flex-direction:column;gap:12px;min-width:0}
.box{background:rgba(3,32,26,.5);border:1.5px solid rgba(211,238,221,.2);border-radius:22px;padding:14px 16px;display:flex;flex-direction:column;gap:10px}
.box h3{margin:0;font:800 14px var(--display);color:var(--white);letter-spacing:.02em}
.box h3 small{font:700 12px var(--body);color:var(--soft);margin-left:6px}
.steplist{display:flex;flex-direction:column;gap:4px;margin:0;padding:0;list-style:none}
.steplist button{width:100%;text-align:left;border:1.5px solid transparent;background:transparent;color:var(--pale);border-radius:12px;padding:6px 10px;font:700 14px var(--body);cursor:pointer;display:flex;gap:8px;align-items:center}
.steplist button span{font:800 11px var(--display);width:22px;height:22px;border-radius:50%;display:inline-grid;place-items:center;background:rgba(211,238,221,.15);flex:none}
.steplist button.done span{background:var(--emerald);color:#fff}
.steplist button.cur{border-color:var(--lime);color:var(--white)}
.steplist button.cur span{background:var(--lime);color:var(--ink)}
.steptext{color-scheme:light;background:var(--mint);color:var(--text);border-radius:18px;padding:12px 14px;font:600 15px/1.45 var(--body);min-height:130px}
.steptext h4{margin:0 0 6px;font:800 16px/1.2 var(--display);color:var(--head)}
.steptext b{color:var(--emerald)}
.steptext .f{display:inline-block;background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:2px 8px;margin-top:6px;font-weight:800;color:var(--head)}
.stepnav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.stepnav .cnt{flex:1;text-align:center;font:800 13px var(--display);color:var(--soft)}
.btn{border:2px solid var(--lime);background:transparent;color:var(--lime);border-radius:30px;padding:8px 14px;font:800 14px var(--body);cursor:pointer}
.btn.fill{background:var(--lime);color:var(--ink)}
.btn:disabled{opacity:.4;cursor:default}
.legend{display:flex;flex-wrap:wrap;gap:6px 12px;font:700 12px var(--body);color:var(--text)}
.legend i{display:inline-block;width:18px;height:6px;border-radius:3px;vertical-align:middle;margin-right:5px}
.info{color-scheme:light;background:var(--card);color:var(--text);border-radius:18px;padding:12px 14px;font:600 14px/1.45 var(--body);border:2px solid var(--line)}
.info h4{margin:0 0 4px;font:800 15px var(--display);color:var(--head)}
.meters{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.m{background:rgba(242,251,234,.06);border:1.5px solid rgba(211,238,221,.18);border-radius:16px;padding:8px 10px;min-width:0}
.m small{display:block;font:800 11px var(--body);letter-spacing:.08em;text-transform:uppercase;color:var(--soft)}
.m b{font:800 22px var(--display);color:var(--white);font-variant-numeric:tabular-nums}
.m .sub{font-size:12px;opacity:.75;margin-left:4px}
input[type=range]{width:100%;accent-color:var(--lime);height:28px}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{border:1.5px solid rgba(211,238,221,.35);background:transparent;color:var(--pale);border-radius:30px;padding:7px 12px;font:800 13px var(--body);cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--white);border-color:var(--white);color:var(--ink)}
.alert{border-radius:14px;padding:8px 12px;font:700 14px/1.35 var(--body);background:rgba(224,97,79,.16);border:1.5px solid rgba(224,97,79,.6);color:#FFD8D1}
.alert.ok{background:rgba(182,240,60,.12);border-color:rgba(182,240,60,.5);color:var(--white)}
/* SVG */
svg text{font-family:"Manrope",Arial,sans-serif}
.ttl{font-family:"Unbounded",Verdana,sans-serif;font-weight:800}
.mono{font-family:"Manrope",Arial,sans-serif;font-weight:800}
.hot{cursor:pointer}
.hot:hover>.shape{stroke:#B6F03C;stroke-width:4}
.pulse{animation:pulse 1.1s ease-in-out infinite}
@keyframes pulse{50%{opacity:.45}}
.fadein{animation:fadein .45s ease both}
@keyframes fadein{from{opacity:0}to{opacity:1}}
/* builder / decoder */
.work{color-scheme:light;background:var(--mint);color:var(--text);border:2px solid var(--line);border-radius:26px;padding:clamp(14px,2.4vw,22px);display:flex;flex-direction:column;gap:14px}
.work h3{margin:0;font:800 18px var(--display);color:var(--head)}
.work p{margin:0}
.strand{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;overflow-x:auto;padding:4px 2px 8px}
.strand .end{font:800 16px var(--display);color:var(--head);padding:0 6px;flex:none}
.nt{flex:none;width:40px;height:44px;border-radius:10px;display:grid;place-items:center;font:800 20px var(--body);color:#fff;border:2px solid transparent}
.nt.A{background:var(--nA)}.nt.T,.nt.U{background:var(--nT)}.nt.G{background:var(--nG)}.nt.C{background:var(--nC)}
.nt.slot{background:#fff;border:2px dashed var(--line);color:var(--head)}
.nt.slot.cur{border:2px solid var(--emerald);background:#F0FBE4}
.nt.bad{animation:shake .35s}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.bonds{display:flex;gap:4px;padding-left:46px;flex:none}
.bonds i{flex:none;width:40px;text-align:center;font:800 12px var(--body);color:var(--emerald);font-style:normal;letter-spacing:-1px}
.keys{display:flex;gap:8px;flex-wrap:wrap}
.keys button{width:58px;height:54px;border-radius:14px;border:0;font:800 22px var(--body);color:#fff;cursor:pointer}
.keys button.A{background:var(--nA)}.keys button.T,.keys button.U{background:var(--nT)}.keys button.G{background:var(--nG)}.keys button.C{background:var(--nC)}
.keys button.undo{background:#fff;color:var(--head);border:2px solid var(--line);font-size:15px;width:auto;padding:0 14px}
.res{font-weight:700}
.res.ok{color:#15803D}.res.bad{color:#B4421F}
.fields{display:flex;flex-direction:column;gap:12px}
.field{display:flex;flex-direction:column;gap:6px;background:#fff;border:2px solid var(--line);border-radius:18px;padding:12px}
.field label{font:800 12px var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--emerald)}
.field input{font:800 18px/1.3 var(--body);letter-spacing:.06em;color:var(--ink);background:var(--mint);border:2px solid var(--line);border-radius:12px;padding:10px 12px;width:100%}
.field input:focus{outline:none;border-color:var(--emerald)}
.field.ok{border-color:var(--leaf)}.field.bad{border-color:#E58A6B}
.field .fb{font-size:14px;font-weight:700}
.field .fb.ok{color:#15803D}.field .fb.bad{color:#B4421F}
.given{font:800 clamp(16px,2.4vw,22px)/1.3 var(--body);letter-spacing:.08em;color:var(--head);background:#fff;border:2px solid var(--line);border-radius:14px;padding:10px 14px;overflow-x:auto;white-space:nowrap}
.btnrow{display:flex;gap:8px;flex-wrap:wrap}
.b{font:800 14px var(--display);border-radius:30px;padding:12px 18px;border:2px solid var(--emerald);cursor:pointer;background:transparent;color:var(--emerald)}
.b.fill{background:var(--emerald);color:#fff}
.codewrap{overflow-x:auto;border-radius:18px;border:2px solid var(--line)}
table.code{border-collapse:collapse;width:100%;min-width:560px;background:#fff;color:var(--text);font:700 14px var(--body)}
table.code th,table.code td{border:1.5px solid var(--line);padding:5px 6px;text-align:center}
table.code th{background:var(--emerald);color:#fff;font:800 13px var(--display)}
table.code td.first,table.code td.third{background:var(--card-alt);font:800 16px var(--display);color:var(--head)}
table.code td.aa{cursor:pointer}
table.code td.aa:hover{background:#F0FBE4}
table.code td.aa.hl{background:var(--lime);color:var(--ink)}
table.code td.aa.stop{color:#B4421F}
/* quiz */
.quiz{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.q{color-scheme:light;background:var(--card);color:var(--text);border-radius:18px;padding:12px 14px;border:2px solid var(--line)}
.q p{margin:0 0 8px;font-weight:800;color:var(--head)}
.q .opts{display:flex;flex-direction:column;gap:6px}
.q button{text-align:left;border:2px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:8px 10px;font:600 14px var(--body);cursor:pointer}
.q button.right{background:#E3F8E6;border-color:var(--leaf);color:var(--head)}
.q button.wrong{background:#FDE7DF;border-color:var(--bad)}
.q .why{margin-top:6px;font-size:13px;color:var(--text)}
.score{font:700 26px var(--hand);color:var(--soft)}
/* theory */
.theory{display:flex;flex-direction:column;gap:16px;margin-top:20px}
.thead2{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:2px solid rgba(211,238,221,.15);padding-top:26px}
.thead2 h2{margin:0;font:800 clamp(28px,4.6vw,46px)/1 var(--display);color:var(--white)}
.thead2 h2 span{color:var(--lime)}
.thead2 .hand{font:700 clamp(22px,3.4vw,30px)/1 var(--hand);color:var(--soft)}
.toc{display:flex;gap:8px;flex-wrap:wrap}
.toc a{color:var(--pale);text-decoration:none;border:1.5px solid rgba(211,238,221,.3);border-radius:30px;padding:7px 13px;font:700 13px var(--body)}
.toc a:hover{border-color:var(--lime);color:var(--lime)}
.tcard{color-scheme:light;background:var(--mint);color:var(--text);border:2px solid var(--line);border-radius:26px;padding:clamp(16px,3vw,30px);display:flex;flex-direction:column;gap:14px;scroll-margin-top:70px;font-size:16.5px;line-height:1.6}
.tcard>h3{margin:0;font:800 clamp(20px,3vw,28px)/1.15 var(--display);color:var(--head);display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tcard>h3 .no{font:800 13px var(--display);background:var(--ink);color:var(--lime);border-radius:30px;padding:6px 12px}
.tcard h4{margin:6px 0 0;font:800 17px/1.25 var(--display);color:var(--emerald)}
.tcard p{margin:0}
.tcard ul,.tcard ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:5px}
.tcard .k{color:#B4421F;font-weight:800}
.tcard b{color:var(--head)}
.note{background:#FFF7DD;border:2px solid #F2D88A;border-radius:18px;padding:12px 16px;font-weight:600}
.note.green{background:var(--card-alt);border-color:var(--line)}
.cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.cols>div{display:flex;flex-direction:column;gap:10px}
.cols>*{min-width:0}
.sub img{max-width:100%;height:auto}
.sub{background:#fff;border:2px solid var(--line);border-radius:18px;padding:14px 16px;display:flex;flex-direction:column;gap:8px}
.sub h5{margin:0;font:800 14px var(--display);letter-spacing:.04em;color:var(--head);text-transform:uppercase}
.figs{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-start}
figure{margin:0;min-width:0;background:#fff;border:2px solid var(--line);border-radius:18px;padding:10px;display:flex;flex-direction:column;gap:6px;max-width:100%}
figure img{display:block;max-width:100%;height:auto;border-radius:8px;cursor:zoom-in}
figcaption{font:700 13px/1.35 var(--body);color:var(--emerald)}
.figs figure{flex:1 1 280px}
.figs figure.w2{flex:2 1 420px}
.flow{display:flex;gap:8px;flex-wrap:wrap;align-items:stretch}
.flow span{flex:1 1 150px;background:#fff;border:2px solid var(--line);border-radius:16px;padding:10px 12px;font-weight:800;color:var(--head);text-align:center;display:grid;place-items:center}
.flow em{font-style:normal;color:var(--emerald);font:800 22px var(--display);display:grid;place-items:center}
table.cmp{border-collapse:collapse;width:100%;background:#fff;border-radius:16px;overflow:hidden;font-size:15px}
table.cmp th{background:var(--emerald);color:#fff;font:800 13px var(--display);padding:9px 10px;text-align:left}
table.cmp td{border-top:1.5px solid var(--line);padding:9px 10px;vertical-align:top}
.lb{position:fixed;inset:0;z-index:60;background:rgba(3,32,26,.96);overflow:auto;padding:64px 16px 24px;display:flex;align-items:flex-start;justify-content:center}
.lb img{display:block;background:#fff;border-radius:10px;max-width:none;width:min(1100px,calc(100vw - 32px))}
.lb button{position:fixed;top:12px;right:12px;font:800 14px var(--display);background:var(--lime);color:var(--ink);border:0;border-radius:30px;padding:11px 16px;cursor:pointer}
.foot{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;opacity:.75;border-top:1.5px solid rgba(211,238,221,.15);padding-top:16px;margin-top:10px}
.foot a{color:inherit}
@media (max-width:1080px){.app{grid-template-columns:1fr}}
@media (max-width:760px){table.cmp{font-size:13.5px}table.cmp th,table.cmp td{padding:7px 6px;overflow-wrap:anywhere;hyphens:auto}table.cmp th{font-size:11px}.cols,.quiz{grid-template-columns:1fr}.nt{width:34px;height:40px;font-size:18px}.bonds{padding-left:40px}.bonds i{width:34px}.keys button{width:52px;height:50px}}
@media (prefers-reduced-motion:reduce){.pulse,.fadein{animation:none}html{scroll-behavior:auto}}