:root{
  --bg:#f2f2f7; --card:#fff; --ink:#111214; --mute:#6c6c72; --hair:rgba(60,60,67,.18); --fill:#e9e9ee;
  --blue:#007aff; --green:#1f9d4c; --red:#d1262f; --yellow:#FFC72C; --asphalt:#2a2d31;
  --m-train:#00744a; --m-exam:#0b5cc4; --m-err:#d1262f; --m-less:#3a3f45;
  --ok-bg:rgba(31,157,76,.12); --bad-bg:rgba(209,38,47,.1);
  --glass:rgba(255,255,255,.66); --glass-edge:rgba(255,255,255,.9); --shadow:0 8px 28px rgba(20,24,30,.14),0 1px 2px rgba(20,24,30,.06);
  --sheet:#fff; --scrim:rgba(0,0,0,.32);
  --f:'Rubik','Readex Pro',system-ui,-apple-system,sans-serif;
  --sat:env(safe-area-inset-top,0px); --sab:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#000; --card:#1c1c1e; --ink:#f2f2f4; --mute:#98989f; --hair:rgba(84,84,88,.5); --fill:#2c2c2e;
  --blue:#0a84ff; --green:#30d158; --red:#ff453a; --asphalt:#3a3d42; --m-less:#4a5058;
  --ok-bg:rgba(48,209,88,.16); --bad-bg:rgba(255,69,58,.16);
  --glass:rgba(40,40,44,.62); --glass-edge:rgba(255,255,255,.14); --shadow:0 8px 28px rgba(0,0,0,.5);
  --sheet:#1c1c1e; --scrim:rgba(0,0,0,.5); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#000; --card:#1c1c1e; --ink:#f2f2f4; --mute:#98989f; --hair:rgba(84,84,88,.5); --fill:#2c2c2e;
  --blue:#0a84ff; --green:#30d158; --red:#ff453a; --asphalt:#3a3d42; --m-less:#4a5058;
  --ok-bg:rgba(48,209,88,.16); --bad-bg:rgba(255,69,58,.16);
  --glass:rgba(40,40,44,.62); --glass-edge:rgba(255,255,255,.14); --shadow:0 8px 28px rgba(0,0,0,.5);
  --sheet:#1c1c1e; --scrim:rgba(0,0,0,.5); color-scheme:dark}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-weight:300;font-size:15px;line-height:1.4;-webkit-font-smoothing:antialiased;overscroll-behavior:none}
[lang=ar] body,[lang=ar]{--f:'Readex Pro','Rubik',system-ui,sans-serif}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;text-align:inherit}
#app{max-width:520px;margin:0 auto;min-height:100%;position:relative;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-bottom:calc(110px + var(--sab))}
.glass{background:var(--glass);border:1px solid var(--glass-edge);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(24px) saturate(1.6);backdrop-filter:blur(24px) saturate(1.6)}
.focus:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* шапка */
.topline{display:flex;justify-content:space-between;align-items:center;height:52px;padding-top:var(--sat);box-sizing:content-box}
.logo{display:flex;align-items:center;gap:8px;font-size:21px;font-weight:400;letter-spacing:-.01em}
.logo svg{height:30px;width:auto;display:block;color:var(--ink,#121212)}
.logo-v svg{height:120px;width:auto;display:block;margin:8px 0 4px;color:var(--ink,#121212)}
.pills{display:flex;gap:8px}
.pill{height:34px;padding:0 14px;border-radius:17px;display:flex;align-items:center;font-size:14px;font-weight:400}
.large{font-size:34px;font-weight:400;letter-spacing:-.02em;margin-top:8px;line-height:1.15;text-wrap:balance}
.lead{font-size:15px;color:var(--mute);margin-top:4px}

.lane{position:relative;height:14px;border-radius:3px;background:var(--fill);margin-top:16px;overflow:hidden}
.lane-fill{position:absolute;inset-inline-start:0;top:0;bottom:0;background:var(--asphalt);transition:width .6s}
.lane-dash{position:absolute;inset-inline-start:8px;top:6px;height:2px;background:repeating-linear-gradient(90deg,#fff 0 14px,transparent 14px 24px)}
.lane-legend{display:flex;justify-content:space-between;font-size:12px;color:var(--mute);margin-top:4px}

.plaques{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}
.plq{border-radius:9px;padding:3px;color:#fff;display:block;width:100%}
.plq-in{position:relative;border:2px solid #fff;border-radius:6px;padding:10px 12px 11px;min-height:76px;display:flex;flex-direction:column;justify-content:space-between;gap:8px}
.plq.wide{grid-column:1/-1}.plq.wide .plq-in{min-height:64px}
.plq-t{font-weight:500;font-size:19px;display:flex;align-items:center;gap:8px;line-height:1.1}
.plq-s{font-size:13px;opacity:.88}
.plq-arr{position:absolute;inset-inline-end:10px;top:10px;opacity:.9;display:flex}
[dir=rtl] .plq-arr svg,[dir=rtl] .rc svg,[dir=rtl] .flip{transform:scaleX(-1)}
.plq.train{background:var(--m-train)}.plq.exam{background:var(--m-exam)}.plq.err{background:var(--m-err)}.plq.less{background:var(--m-less)}
.plq.sign{background:#fff;color:#111214;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
.plq.sign .plq-in{border:4px solid #d1262f}
.plq.off{opacity:.55}
.badge{background:#fff;color:var(--m-err);font-size:13px;font-weight:500;border-radius:10px;padding:1px 7px;line-height:1.3}
.plq.sm{display:inline-block;width:auto;border-radius:7px;padding:2px}
.plq.sm .plq-in{min-height:0;padding:3px 12px;border-radius:5px;font-weight:500;font-size:16px}
.plq.bad{background:var(--m-err)}

.grp-h{font-size:13px;color:var(--mute);text-transform:uppercase;letter-spacing:.06em;margin:24px 4px 7px}
.list{background:var(--card);border-radius:12px;overflow:hidden}
.row{display:flex;align-items:center;gap:10px;min-height:48px;padding:6px 12px;padding-inline-start:16px;border-top:1px solid var(--hair);width:100%}
.row:first-child{border-top:0}
.rl{flex:1;font-weight:400}
.rs{display:block;font-size:13px;color:var(--mute);font-weight:300}
.rv{color:var(--mute);font-variant-numeric:tabular-nums}
.rc{color:#b8b8bd;display:flex}
.row.on .rl{color:var(--blue)}

/* таб-бар */
.tabbar{position:fixed;left:50%;transform:translateX(-50%);width:min(488px,calc(100% - 32px));bottom:calc(16px + var(--sab));height:64px;border-radius:32px;display:flex;justify-content:space-around;align-items:center;z-index:15;padding:0 8px}
.tab{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;color:var(--mute);width:72px;padding:6px 0;border-radius:24px;text-align:center}
.tab.on{color:var(--blue);background:color-mix(in srgb,var(--blue) 12%,transparent)}

/* вопрос */
.navbar{position:sticky;top:calc(8px + var(--sat));height:48px;border-radius:24px;display:flex;justify-content:space-between;align-items:center;padding:0 6px;z-index:10;margin-top:calc(8px + var(--sat))}
.nb-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:18px}
.nb-t{font-size:15px;font-weight:400;text-align:center;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.nb-t i{font-style:normal;color:var(--mute);font-variant-numeric:tabular-nums;margin-inline-start:4px}
.photo{border-radius:12px;overflow:hidden;margin-top:12px;background:var(--fill);aspect-ratio:3/2}
.photo.old{aspect-ratio:auto;background:#fff;display:flex;justify-content:center;padding:6px}
.photo img{width:100%;height:100%;object-fit:cover;display:block}
.photo.old img{width:auto;max-width:100%;height:auto;max-height:260px;object-fit:contain}
.qtext{font-size:18px;font-weight:400;line-height:1.33;margin-top:14px;letter-spacing:-.005em}
.he{font-size:14px;color:var(--mute);margin-top:6px;line-height:1.5}
.he b{font-weight:400;color:var(--ink)}
.he .t{color:var(--blue);text-decoration:underline dotted;text-underline-offset:3px;cursor:pointer}
.ans-list{margin-top:14px}
.ans{display:flex;align-items:flex-start;gap:12px;padding:11px 14px;border-top:1px solid var(--hair);font-size:15px;line-height:1.35;width:100%}
.ans:first-child{border-top:0}
.an{width:22px;height:22px;flex:none;border-radius:6px;background:var(--fill);font-size:13px;font-weight:400;display:flex;align-items:center;justify-content:center;color:var(--mute);margin-top:-1px}
.at{flex:1}
.am{display:flex;flex:none}
.radio{width:20px;height:20px;border-radius:50%;border:1.5px solid #c4c4c8;flex:none;margin-top:1px}
.ans.sel{background:color-mix(in srgb,var(--blue) 9%,transparent)}
.ans.sel .radio{border:6px solid var(--blue)}
.ans.ok{background:var(--ok-bg)}.ans.ok .an{background:var(--green);color:#fff}.ans.ok .am{color:var(--green)}
.ans.bad{background:var(--bad-bg)}.ans.bad .an{background:var(--red);color:#fff}.ans.bad .am{color:var(--red)}
.ans.dim{opacity:.55}
.remark{font-size:14px;color:var(--mute);margin-top:12px;padding-inline-start:12px;border-inline-start:2px solid var(--yellow)}
.remark.big{font-size:16px;color:var(--ink);margin-top:18px}
.verdict-line{display:flex;align-items:center;gap:8px;margin-top:12px;font-weight:400}
.verdict-line.ok{color:var(--green)}.verdict-line.bad{color:var(--red)}
.cta{position:fixed;left:50%;transform:translateX(-50%);width:min(488px,calc(100% - 32px));bottom:calc(16px + var(--sab));height:52px;border-radius:26px;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:400;color:var(--blue);z-index:12;text-align:center}
.cta[disabled]{color:var(--mute)}

/* экзамен */
.exam-top{position:sticky;top:0;padding-top:calc(8px + var(--sat));height:calc(56px + var(--sat));display:flex;justify-content:space-between;align-items:center;z-index:10;background:var(--bg)}
.exam-top .link{width:96px}
.km{background:var(--m-train);border-radius:7px;padding:2px;color:#fff}
.km-in{display:block;border:2px solid #fff;border-radius:5px;padding:3px 12px;font-size:15px;font-variant-numeric:tabular-nums;white-space:nowrap}
.km-in b{font-weight:500;font-size:18px}
.timer{width:96px;text-align:end;font-size:20px;font-weight:400;font-variant-numeric:tabular-nums}
.timer.low{color:var(--red)}
.strip{position:fixed;left:50%;transform:translateX(-50%);width:min(488px,calc(100% - 32px));bottom:calc(80px + var(--sab));z-index:12;background:var(--bg);padding-top:8px}
.strip-cells{display:grid;grid-template-columns:repeat(15,1fr);gap:4px}
.cell{height:16px;border-radius:2px;background:var(--fill)}
.cell.done{background:var(--asphalt)}
.cell.cur{background:var(--card);box-shadow:inset 0 0 0 2px var(--blue)}
.strip-l{display:flex;justify-content:space-between;font-size:12px;color:var(--mute);margin-top:6px}
.exam-nav{position:fixed;left:50%;transform:translateX(-50%);width:min(488px,calc(100% - 32px));bottom:calc(16px + var(--sab));display:flex;gap:10px;z-index:12}
.exam-nav .btn{flex:1}

/* результат */
.res-top{display:flex;justify-content:space-between;align-items:center;height:52px;padding-top:var(--sat);box-sizing:content-box}
.score{font-size:112px;font-weight:300;letter-spacing:-.04em;line-height:1;margin-top:12px;font-variant-numeric:tabular-nums}
.score span{font-size:34px;color:var(--mute);letter-spacing:0;margin-inline-start:8px}
.verdict{display:flex;align-items:center;gap:12px;margin-top:12px}
.mrow{display:flex;align-items:center;gap:12px;padding:10px 12px;border-top:1px solid var(--hair);width:100%}
.mrow:first-child{border-top:0}
.mrow img{width:64px;height:43px;border-radius:6px;object-fit:cover;flex:none;background:var(--fill)}
.mrow .noimg{width:64px;height:43px;border-radius:6px;flex:none;background:var(--fill);display:flex;align-items:center;justify-content:center;color:var(--mute);font-size:12px}
.mt{flex:1;display:flex;flex-direction:column;gap:1px;min-width:0}
.mtop{font-size:12px;color:var(--mute)}
.mq{font-size:14px;font-weight:400;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.btns{display:flex;flex-direction:column;gap:10px;margin-top:20px}

/* кнопки */
.btn{min-height:50px;border-radius:25px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:16px;font-weight:400;padding:0 20px;text-align:center}
.btn.blue{background:var(--blue);color:#fff}
.btn.ghost{background:var(--card);border:1px solid var(--hair)}
.btn.black{background:#000;color:#fff}
:root[data-theme=dark] .btn.black{background:#fff;color:#000}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .btn.black{background:#fff;color:#000}}
.btn.wide{width:100%}
.link{color:var(--blue);font-size:16px;font-weight:400}
.center{text-align:center;display:block;width:100%;margin-top:14px}

/* знаки */
.seg{display:flex;gap:6px;margin-top:16px;overflow-x:auto;white-space:nowrap;scrollbar-width:none;padding-bottom:2px}
.seg::-webkit-scrollbar{display:none}
.seg button{padding:7px 13px;border-radius:16px;background:var(--fill);font-size:14px;font-weight:400;flex:none}
.seg button.on{background:var(--ink);color:var(--bg)}
.sgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:16px}
.sg{background:var(--card);border-radius:12px;padding:10px 6px;display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center;min-width:0}
.sg-i{width:100%;height:76px;display:flex;align-items:center;justify-content:center;background:#fff;border-radius:8px;overflow:hidden}
.sg-i img{max-width:100%;max-height:76px;object-fit:contain}
.sg span{font-size:12px;line-height:1.25;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* шторка */
.scrim{position:fixed;inset:0;background:var(--scrim);z-index:40;animation:fade .2s}
.sheet{position:fixed;left:50%;transform:translateX(-50%);width:min(520px,100%);bottom:0;background:var(--sheet);border-radius:28px 28px 0 0;z-index:41;padding:8px 20px calc(24px + var(--sab));max-height:92vh;overflow:auto;animation:up .25s cubic-bezier(.2,.8,.2,1)}
@keyframes up{from{transform:translate(-50%,40%);opacity:0}}
@keyframes fade{from{opacity:0}}
@media (prefers-reduced-motion:reduce){.sheet,.scrim{animation:none}.lane-fill{transition:none}}
.grab{width:36px;height:5px;border-radius:3px;background:#c9c9ce;margin:0 auto 10px}
.sh-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.sh-label{font-size:13px;color:var(--mute)}
.sh-x{width:30px;height:30px;border-radius:15px;background:var(--fill);display:flex;align-items:center;justify-content:center;color:var(--mute);flex:none}
.term{font-size:52px;font-weight:400;margin-top:6px;line-height:1.1;font-family:'Rubik',sans-serif}
.translit{font-size:14px;color:var(--mute)}
.trans{font-size:28px;font-weight:300;margin-top:14px}
.ex{margin-top:14px;padding:12px 14px;background:var(--bg);border-radius:12px}
.ex-he{font-size:15px;font-weight:400}
.ex-tr{font-size:14px;color:var(--mute);margin-top:4px}
.sh-btns{display:flex;gap:10px;margin-top:18px}.sh-btns .btn{flex:1}
.pass{display:inline-block;background:var(--m-exam);border-radius:9px;padding:3px;margin-top:14px;color:#fff}
.pass-in{display:flex;flex-direction:column;border:2px solid #fff;border-radius:6px;padding:8px 16px}
.pass-k{font-size:13px;opacity:.85}.pass-t{font-size:22px;font-weight:500}
.price{font-size:64px;font-weight:300;letter-spacing:-.03em;margin-top:10px;line-height:1}
.price span{font-size:32px;color:var(--mute)}
.incs{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.inc{display:flex;gap:10px;align-items:center;font-size:15px;font-weight:400}
.inc i{color:var(--green);display:flex}
.note{font-size:13px;color:var(--mute);margin-top:14px;text-align:center}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(96px + var(--sab));z-index:60;padding:10px 16px;border-radius:20px;font-size:14px;font-weight:400;max-width:calc(100% - 32px);text-align:center}

.login-btns{display:flex;flex-direction:column;gap:12px;margin-top:32px}
.fine{font-size:13px;color:var(--mute);margin-top:18px;text-align:center;padding:0 16px}
.steps{display:flex;flex-direction:column;gap:0;margin-top:16px}
.step{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--hair)}
.step:first-child{border-top:0}
.step-n{width:28px;height:28px;border-radius:7px;background:var(--m-exam);color:#fff;font-weight:500;display:flex;align-items:center;justify-content:center;flex:none;font-variant-numeric:tabular-nums}
.step h3{font-size:17px;font-weight:400}
.step p{color:var(--mute);margin-top:3px;font-size:14px}
.step a{color:var(--blue);text-decoration:none;font-weight:400;display:inline-block;margin-top:6px}
.loading{display:flex;height:80vh;align-items:center;justify-content:center;color:var(--mute)}
.proto{font-size:12px;color:var(--mute);text-align:center;margin-top:28px}