/* Layout: one phone-width column, bottom tab bar; palette borrowed from H&E stain (hematoxylin violet, eosin pink) */
:root{
  --bg:#F5F3F8; --surface:#FFFFFF; --surface-2:#EEEBF4; --line:#DDD8E8;
  --ink:#1D1830; --muted:#6A6580;
  --accent:#4B3B8F; --accent-ink:#FFFFFF; --accent-soft:#E7E2F6;
  --eosin:#C93B6E; --eosin-soft:#FBE4EC;
  --ok:#1E7F55; --ok-soft:#E1F3EA; --bad:#B93A26; --bad-soft:#FBE7E3; --mid:#A26A06; --mid-soft:#FBF0D9;
  --f-stem:ui-serif,"New York","Iowan Old Style",Georgia,"Times New Roman",serif;
  --f-ui:-apple-system,BlinkMacSystemFont,system-ui,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --f-mono:ui-monospace,"SF Mono",Menlo,Consolas,"Roboto Mono",monospace;
  --r:14px;
  --hl-yellow:rgba(255,204,0,.42); --hl-green:rgba(52,199,89,.32); --hl-pink:rgba(255,64,150,.26); --hl-blue:rgba(10,132,255,.24);
  --hl-yellow-s:#E0A800; --hl-green-s:#2FA84F; --hl-pink-s:#E0357F; --hl-blue-s:#2F7BE0;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#13111B; --surface:#1C1927; --surface-2:#262236; --line:#332E47;
  --ink:#ECE9F5; --muted:#A09BB5;
  --accent:#A99AF2; --accent-ink:#191433; --accent-soft:#2D2750;
  --eosin:#F07AA3; --eosin-soft:#3A1E2B;
  --ok:#53C892; --ok-soft:#173326; --bad:#F2806A; --bad-soft:#3A1E19; --mid:#E5B04F; --mid-soft:#3A2D12;
  --hl-yellow:rgba(255,214,10,.34); --hl-green:rgba(48,209,88,.28); --hl-pink:rgba(255,92,170,.30); --hl-blue:rgba(64,156,255,.32);
  --hl-yellow-s:#FFD60A; --hl-green-s:#30D158; --hl-pink-s:#FF5CAA; --hl-blue-s:#409CFF;
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#13111B; --surface:#1C1927; --surface-2:#262236; --line:#332E47;
  --ink:#ECE9F5; --muted:#A09BB5;
  --accent:#A99AF2; --accent-ink:#191433; --accent-soft:#2D2750;
  --eosin:#F07AA3; --eosin-soft:#3A1E2B;
  --ok:#53C892; --ok-soft:#173326; --bad:#F2806A; --bad-soft:#3A1E19; --mid:#E5B04F; --mid-soft:#3A2D12;
  --hl-yellow:rgba(255,214,10,.34); --hl-green:rgba(48,209,88,.28); --hl-pink:rgba(255,92,170,.30); --hl-blue:rgba(64,156,255,.32);
  --hl-yellow-s:#FFD60A; --hl-green-s:#30D158; --hl-pink-s:#FF5CAA; --hl-blue-s:#409CFF;
  color-scheme:dark}

html,body{height:100%}
html{-webkit-text-size-adjust:100%}
body{margin:0;padding-top:env(safe-area-inset-top,0px)}
img{max-width:100%}
[hidden]{display:none!important}
a{color:var(--accent)}
:root{color-scheme:light}
body{background:var(--bg);color:var(--ink);font-family:var(--f-ui);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.app{max-width:560px;margin:0 auto;padding-inline:16px;padding-block:20px 110px;display:flex;flex-direction:column;gap:20px}
h1,h2,h3{margin:0;text-wrap:balance}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}

/* header */
.brand{display:flex;align-items:flex-end;justify-content:space-between;gap:12px}
.brand h1{font-family:var(--f-stem);font-weight:600;font-size:28px;letter-spacing:-.01em}
.brand h1 i{color:var(--eosin);font-weight:500}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--accent-soft);color:var(--accent)}

/* start card */
.start{background:var(--accent);color:var(--accent-ink);border-radius:20px;padding:20px;display:flex;flex-direction:column;gap:14px}
.start h2{font-family:var(--f-stem);font-weight:600;font-size:22px}
.start p{margin:0;opacity:.85;font-size:14px}
.start .row{display:flex;gap:10px;flex-wrap:wrap}
.btn{border:0;border-radius:12px;padding:12px 16px;font-weight:700;font-size:15px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-light{background:var(--accent-ink);color:var(--accent)}
.btn-ghost{background:transparent;border:1.5px solid currentColor;color:inherit}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-quiet{background:var(--surface-2);color:var(--ink)}
.btn[disabled]{opacity:.45;cursor:default}
.btn.wide{width:100%}

/* subject list */
.section-head{display:flex;justify-content:space-between;align-items:baseline}
.subjects{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.subj{display:grid;grid-template-columns:1fr auto;gap:4px 12px;align-items:center;padding:14px 16px;border:0;background:none;text-align:left;border-top:1px solid var(--line)}
.subj:first-child{border-top:0}
.subj:hover{background:var(--surface-2)}
.subj .name{font-weight:700;min-width:0}
.subj .ru{font-size:12.5px;color:var(--muted);font-weight:500;margin-left:6px}
.subj .count{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.subj .bar{grid-column:1 / -1;height:5px;border-radius:3px;background:var(--surface-2);overflow:hidden}
.subj .bar span{display:block;height:100%;border-radius:3px}
.chev{color:var(--muted);font-size:18px}

/* quiz */
.qtop{display:flex;align-items:center;justify-content:space-between;gap:10px;position:sticky;top:env(safe-area-inset-top,0px);background:var(--bg);padding-block:8px;z-index:2}
.icon-btn{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;font-size:18px;flex:none}
.progress{flex:1;display:flex;flex-direction:column;gap:6px;min-width:0}
.progress .meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);font-weight:600;font-variant-numeric:tabular-nums}
.dots{display:flex;gap:4px}
.dots i{flex:1;height:4px;border-radius:2px;background:var(--line)}
.dots i.ok{background:var(--ok)} .dots i.bad{background:var(--bad)} .dots i.cur{background:var(--accent)}
.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:12px;font-weight:600;padding:3px 9px;border-radius:6px;background:var(--surface-2);color:var(--muted)}
.tag.subj-tag{background:var(--eosin-soft);color:var(--eosin)}
.stem{font-family:var(--f-stem);font-size:17px;line-height:1.62;margin:0}
.labs{border:1px solid var(--line);border-radius:10px;overflow-x:auto;background:var(--surface)}
.labs table{border-collapse:collapse;width:100%;font-size:13.5px}
.labs td{padding:7px 12px;border-top:1px solid var(--line)}
.labs tr:first-child td{border-top:0}
.labs td:last-child{text-align:right;font-family:var(--f-mono);font-variant-numeric:tabular-nums;white-space:nowrap}
.labs .flag{color:var(--eosin);font-weight:600}
.question-line{font-family:var(--f-stem);font-weight:600;font-size:17px;margin:0}
.opts{display:flex;flex-direction:column;gap:8px}
.opt{display:grid;grid-template-columns:30px 1fr auto;gap:12px;align-items:center;text-align:left;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);transition:border-color .15s,background .15s}
.opt:not([disabled]):hover{border-color:var(--accent)}
.opt .l{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px;background:var(--surface-2);color:var(--muted)}
.opt .t{min-width:0}
.opt .mark{font-weight:800;font-size:15px}
.opt.correct{border-color:var(--ok);background:var(--ok-soft)}
.opt.correct .l{background:var(--ok);color:var(--surface)}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft)}
.opt.wrong .l{background:var(--bad);color:var(--surface)}
.opt.dim{opacity:.55}
.opt.other{opacity:.72}
.opt.other:hover,.opt.open{opacity:1}
.opt.other.open{border-color:var(--muted)}
.opt .note{grid-column:2 / -1;font-size:14px;line-height:1.5;color:var(--ink);padding-top:2px;border-top:1px dashed var(--line);padding-block:8px 0}
.opt .chev-s{color:var(--muted);font-size:13px;transition:transform .15s}
.opt.open .chev-s{transform:rotate(180deg)}
.hint{font-size:13px;color:var(--muted);margin:-2px 0 0}

.dots{gap:3px}
.dot{flex:1;height:16px;border:0;background:none;padding:0;position:relative;min-width:0}
.dot::after{content:"";position:absolute;left:0;right:0;top:6px;height:4px;border-radius:2px;background:var(--line)}
.dot.ok::after{background:var(--ok)} .dot.bad::after{background:var(--bad)}
.dot.cur::after{top:4px;height:8px}
.dot.cur:not(.ok):not(.bad)::after{background:var(--accent)}
.dot.mk::before{content:"";position:absolute;left:50%;top:-2px;width:6px;height:6px;border-radius:50%;background:var(--eosin);transform:translateX(-50%)}
.markbtn{height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);display:inline-flex;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:700;color:var(--muted);flex:none}
.markbtn svg{width:16px;height:16px}
.markbtn.on{background:var(--eosin-soft);border-color:var(--eosin);color:var(--eosin)}
.markbtn.on svg{fill:currentColor}
.dock .nav{display:grid;grid-template-columns:auto 1fr;gap:10px}

.expl{display:flex;flex-direction:column;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;animation:rise .25s ease-out}
@keyframes rise{from{transform:translateY(6px)}to{transform:none}}
@media (prefers-reduced-motion:reduce){.expl{animation:none}}
.verdict{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px}
.verdict .vdot{width:10px;height:10px;border-radius:50%;flex:none}
.verdict.ok{color:var(--ok)} .verdict.ok .vdot{background:var(--ok)}
.verdict.bad{color:var(--bad)} .verdict.bad .vdot{background:var(--bad)}
.expl p{margin:0}
.expl h3{font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.why{display:flex;flex-direction:column;gap:8px;margin:0;padding:0;list-style:none}
.why li{display:grid;grid-template-columns:26px 1fr;gap:8px;font-size:14.5px}
.why b{color:var(--muted)}
.objective{background:var(--accent-soft);border-radius:10px;padding:12px 14px;font-size:14.5px}
.objective strong{display:block;font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--accent);margin-bottom:2px}

.dock{position:fixed;left:0;right:0;bottom:0;padding:12px 16px calc(12px + env(safe-area-inset-bottom,0px));background:linear-gradient(to top,var(--bg) 70%,transparent);z-index:5}
.dock .inner{max-width:528px;margin:0 auto}

/* tab bar */
.tabs{position:fixed;left:0;right:0;bottom:0;background:var(--surface);border-top:1px solid var(--line);padding:8px 16px calc(8px + env(safe-area-inset-bottom,0px));z-index:4}
.tabs .inner{max-width:528px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:4px}
.tab{border:0;background:none;padding:8px;border-radius:10px;font-weight:700;font-size:13px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:2px}
.tab svg{width:22px;height:22px}
.tab.on{color:var(--accent);background:var(--accent-soft)}

/* stats */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px}
.kpi .v{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.kpi .k{font-size:12px;color:var(--muted);font-weight:600}
.statlist{display:flex;flex-direction:column;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.srow{display:flex;flex-direction:column;gap:6px}
.srow .top{display:flex;justify-content:space-between;gap:10px;font-weight:700}
.srow .top span:last-child{font-variant-numeric:tabular-nums}
.srow .sub{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.track{height:10px;border-radius:5px;background:var(--surface-2);overflow:hidden;position:relative}
.track span{position:absolute;inset:0 auto 0 0;border-radius:5px}
.banner{background:var(--mid-soft);color:var(--ink);border-radius:12px;padding:12px 14px;font-size:14px}
.banner b{color:var(--mid)}
.confirm{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:14px}

/* summary */
.score{display:flex;align-items:center;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.ring{width:84px;height:84px;flex:none}
.ring text{font-family:var(--f-ui);font-weight:800;fill:var(--ink)}
.muted{color:var(--muted)}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:4px;background:var(--surface-2);border-radius:12px}
.seg button{border:0;background:none;padding:8px 10px;border-radius:9px;font-weight:700;font-size:13.5px;color:var(--muted)}
.seg button.on{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.after{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.after .hint{margin:0;flex:1;min-width:12em}

/* activity heatmap */
.heat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px;display:flex;flex-direction:column;gap:14px}
.today-line{font-size:14.5px;text-align:center;margin:0}
.today-line b{font-variant-numeric:tabular-nums}
.heat-nav{display:flex;justify-content:center;align-items:center;gap:8px}
.heat-nav .icon-btn{width:40px;height:34px;font-size:15px;color:var(--muted)}
.heat-nav .icon-btn[disabled]{opacity:.4;cursor:default}
.heat-range{font-size:12.5px;color:var(--muted);font-weight:600;min-width:9.5em;text-align:center;font-variant-numeric:tabular-nums}
.heat-wrap{display:flex;gap:6px}
.dows,.wk{display:grid;grid-template-rows:14px repeat(7,12px);row-gap:3px}
.dows{font-size:10px;color:var(--muted);line-height:12px;flex:none}
.heat{overflow-x:auto;flex:1;min-width:0;padding-bottom:4px;scrollbar-width:thin}
.weeks{display:flex;gap:3px;width:max-content;padding:2px}
.mo{font-size:10px;color:var(--muted);white-space:nowrap;line-height:12px;width:12px}
.cell{width:12px;height:12px;border-radius:2px;border:0;padding:0;background:var(--surface-2);position:relative}
.cell::after{content:"";position:absolute;inset:0;border-radius:2px;background:var(--ok);opacity:0}
.cell.l1::after{opacity:.3}.cell.l2::after{opacity:.52}.cell.l3::after{opacity:.76}.cell.l4::after{opacity:1}
.cell.sel{outline:2px solid var(--ink);outline-offset:1px}
.cell.future{visibility:hidden}
.heat-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.heat-cap{font-size:13.5px;color:var(--ink);font-variant-numeric:tabular-nums;min-width:0}
.legend{display:flex;align-items:center;gap:3px;font-size:11px;color:var(--muted)}
.legend .cell{cursor:default;display:inline-block}
.streaks{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 16px;border-top:1px solid var(--line);padding-top:14px}
@media (min-width:520px){.streaks{grid-template-columns:repeat(4,1fr)}}
.streaks .v{font-weight:800;font-size:19px;color:var(--ok);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.streaks .k{font-size:12px;color:var(--muted);font-weight:600}

/* ---------- auth ---------- */
.auth{max-width:440px;margin:0 auto;padding-inline:16px;padding-block:40px 40px;display:flex;flex-direction:column;gap:22px}
.auth .logo{width:64px;height:64px;border-radius:16px}
.auth h1{font-family:var(--f-stem);font-weight:600;font-size:30px;letter-spacing:-.01em}
.auth h1 i{color:var(--eosin);font-weight:500}
.auth .lead{margin:6px 0 0;color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px;display:flex;flex-direction:column;gap:14px}
.btn-tg{background:#2AABEE;color:#fff;text-decoration:none}
.btn-tg svg{width:20px;height:20px;fill:currentColor}
.btn-tg[aria-disabled="true"]{opacity:.45;pointer-events:none}
.or{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:700;color:var(--muted)}
.field input{font:inherit;font-size:16px;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);width:100%}
.field input:focus{outline:none;border-color:var(--accent)}
.check{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start;font-size:14px}
.check input{width:20px;height:20px;margin:1px 0 0;accent-color:var(--accent)}
.msg{font-size:14px;border-radius:10px;padding:10px 12px}
.msg.err{background:var(--bad-soft);color:var(--bad)}
.msg.ok{background:var(--ok-soft);color:var(--ok)}
.msg.info{background:var(--accent-soft);color:var(--ink)}
.linkbtn{border:0;background:none;padding:0;color:var(--accent);font-weight:700;font-size:14px;text-align:left}
.wait{display:flex;flex-direction:column;gap:12px;align-items:stretch;text-align:center}
.spinner{width:28px;height:28px;border-radius:50%;border:3px solid var(--surface-2);border-top-color:var(--accent);margin:4px auto;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spinner{animation-duration:3s}}
.small{font-size:12.5px;color:var(--muted)}

/* ---------- sync / install ---------- */
.syncpill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:var(--mid-soft);color:var(--mid)}
.syncpill.ok{background:var(--ok-soft);color:var(--ok)}
.install{display:flex;gap:12px;align-items:center;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r);padding:12px 14px;font-size:14px}
.install img{width:40px;height:40px;border-radius:10px;flex:none}
.install .x{margin-left:auto;border:0;background:none;color:var(--muted);font-size:18px;padding:4px 8px}

/* ---------- profile ---------- */
.plist{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.prow{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;border-top:1px solid var(--line);min-width:0}
.prow:first-child{border-top:0}
.prow .k{color:var(--muted);font-size:14px;flex:none}
.prow .v{font-weight:600;text-align:right;min-width:0;overflow-wrap:anywhere}
.danger{color:var(--bad)}
.qimg{border-radius:10px;border:1px solid var(--line);background:#fff}
.empty{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;text-align:center;color:var(--muted)}

/* ---------- settings ---------- */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sgroup{display:flex;flex-direction:column;gap:10px}
.srow-set{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:14px 16px;border-top:1px solid var(--line);cursor:pointer}
.srow-set:first-child{border-top:0}
.srow-set.col{flex-direction:column;align-items:stretch;cursor:default}
.srow-set .lbl{display:flex;flex-direction:column;gap:2px;min-width:0;font-weight:600}
.srow-set .lbl .small{font-weight:400}
.switch{position:relative;width:50px;height:30px;flex:none}
.switch input{position:absolute;inset:0;opacity:0;margin:0;cursor:pointer;z-index:1}
.switch .knob{position:absolute;inset:0;border-radius:999px;background:var(--line);transition:background .15s}
.switch .knob::after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:var(--surface);box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .15s}
.switch input:checked + .knob{background:var(--ok)}
.switch input:checked + .knob::after{transform:translateX(20px)}
.switch input:focus-visible + .knob{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){.switch .knob,.switch .knob::after{transition:none}}
.timeinput{font:inherit;font-size:16px;padding:8px 10px;border-radius:10px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);font-variant-numeric:tabular-nums}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:800;font-size:17px;flex:none}
.namefield{display:flex;gap:8px;flex:1;min-width:0}
.namefield input{flex:1;min-width:0;font:inherit;font-size:16px;font-weight:600;padding:8px 10px;border-radius:10px;border:1.5px solid transparent;background:var(--bg);color:var(--ink)}
.namefield input:focus{outline:none;border-color:var(--accent)}
.namefield .btn{padding:8px 12px;font-size:14px}
.subcard{display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--r);padding:16px}
.subcard.ok{border-left-color:var(--ok)}
.subcard.warn{border-left-color:var(--mid)}
.subcard .subdays{font-size:26px;font-weight:800;letter-spacing:-.02em;color:var(--accent);font-variant-numeric:tabular-nums}
.seg3{grid-template-columns:repeat(3,1fr)}
.trialbar{border:0;width:100%;text-align:left;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:14px;padding:10px 14px;border-radius:12px}
.qtimer{font-variant-numeric:tabular-nums;color:var(--accent)}
.qtimer.stopped{color:var(--muted)}
.auth-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.auth-lang .seg{min-width:180px}

/* ---------- highlighter ---------- */
[data-hl]{-webkit-user-select:text;user-select:text}
.hl{border-radius:3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.hl-mark{padding:0 1px}
.hl-mark.hl-yellow{background:var(--hl-yellow)} .hl-mark.hl-green{background:var(--hl-green)}
.hl-mark.hl-pink{background:var(--hl-pink)} .hl-mark.hl-blue{background:var(--hl-blue)}
.hl-under{text-decoration-line:underline;text-decoration-thickness:3px;text-underline-offset:3px;text-decoration-skip-ink:none}
.hl-under.hl-yellow{text-decoration-color:var(--hl-yellow-s)} .hl-under.hl-green{text-decoration-color:var(--hl-green-s)}
.hl-under.hl-pink{text-decoration-color:var(--hl-pink-s)} .hl-under.hl-blue{text-decoration-color:var(--hl-blue-s)}
.hlbar{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(80px + env(safe-area-inset-bottom,0px));z-index:6;width:min(528px,calc(100% - 32px));
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 12px;border-radius:16px;
  background:var(--surface);border:1px solid var(--line);box-shadow:0 8px 28px rgba(20,14,50,.18);-webkit-user-select:none;user-select:none}
.hlbar .small{flex:1;min-width:10em}
.hlbar .btn{padding:8px 12px;font-size:14px}
.hl-seg{display:flex;gap:4px;padding:3px;background:var(--surface-2);border-radius:10px}
.hl-seg button{border:0;background:none;padding:6px 10px;border-radius:8px;font-weight:700;font-size:13px;color:var(--muted);white-space:nowrap}
.hl-seg button.on{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.hl-colors{display:flex;gap:8px;align-items:center}
.hl-dot{width:30px;height:30px;border-radius:50%;border:2px solid var(--surface);box-shadow:0 0 0 1.5px var(--line);padding:0}
.hl-dot.on{box-shadow:0 0 0 2.5px var(--ink)}
.sw-yellow{background:var(--hl-yellow-s)} .sw-green{background:var(--hl-green-s)} .sw-pink{background:var(--hl-pink-s)} .sw-blue{background:var(--hl-blue-s)}
.hl-erase{width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:var(--surface);display:grid;place-items:center;color:var(--muted);padding:0}
.hl-erase svg{width:18px;height:18px}
.hlbar.compact{left:auto;right:16px;transform:none;width:auto;padding:4px;border-radius:12px}
@media (min-width:560px){.hlbar.compact{right:calc(50% - 264px)}}

/* ---------- flashcards ---------- */
.tab{position:relative;font-size:12px}
.badge{position:absolute;top:2px;left:calc(50% + 6px);min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--eosin);color:#fff;font-size:11px;font-weight:800;display:grid;place-items:center;font-variant-numeric:tabular-nums}
.crow{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-top:1px solid var(--line)}
.crow:first-child{border-top:0}
.ctext{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1;align-items:flex-start}
.cfront{font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.crow .icon-btn{width:32px;height:32px;font-size:14px;color:var(--muted)}
.due-now{color:var(--eosin);font-weight:700}
.fcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;display:flex;flex-direction:column;gap:14px;min-height:240px;box-shadow:0 6px 24px rgba(20,14,50,.06)}
.ffront{font-family:var(--f-stem);font-size:20px;line-height:1.5;margin:0;font-weight:600}
.fcard hr{border:0;border-top:1px dashed var(--line);margin:4px 0;width:100%}
.fback{margin:0;font-size:16px;line-height:1.6}
.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.grade{border:0;border-radius:12px;padding:10px 4px;display:flex;flex-direction:column;align-items:center;gap:2px;font-weight:800;font-size:14px}
.grade .small{color:inherit;opacity:.8;font-weight:600}
.grade.again{background:var(--bad-soft);color:var(--bad)} .grade.hard{background:var(--mid-soft);color:var(--mid)}
.grade.good{background:var(--ok-soft);color:var(--ok)} .grade.easy{background:var(--accent-soft);color:var(--accent)}
.after-btns{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.incards{font-size:13.5px;font-weight:700;color:var(--ok)}
/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.plan{border:1.5px solid var(--line);background:var(--bg);border-radius:12px;padding:12px;text-align:left;display:flex;flex-direction:column;gap:2px}
.plan.on{border-color:var(--accent);background:var(--accent-soft)}
.plan .pname{font-weight:700;color:var(--muted);font-size:13px}
.plan .pprice{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums}
.plan .save{color:var(--ok)}

.card-actions{display:flex;justify-content:space-between;gap:12px}
.linkbtn.danger{color:var(--bad)}
.crow-btns{display:flex;gap:6px;flex:none}
.tag.mine{background:var(--accent-soft);color:var(--accent)}
.field textarea{font:inherit;font-size:16px;line-height:1.5;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);width:100%;resize:vertical}
.field textarea:focus{outline:none;border-color:var(--accent)}

/* ---------- Yandex / Google sign-in ---------- */
.btn-oauth{background:var(--surface);color:var(--ink);border:1.5px solid var(--line);text-decoration:none}
.btn-oauth:hover{border-color:var(--muted)}
.oi{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;line-height:1;flex:none}
.oi-ya{background:#FC3F1D;color:#fff;font-family:var(--f-ui)}
.oi-g{background:#fff;color:#4285F4;border:1px solid #dadce0;font-family:Arial,var(--f-ui)}