:root{
  --bg:#f2f4f6; --grid:rgba(36,86,200,.05); --surface:#ffffff; --surface2:#eaeef2;
  --ink:#1d2a38; --muted:#5d6b7a; --line:#dbe1e8; --accent:#2456c8; --accent-soft:#e3ebfb;
  --amber:#a86510; --amber-bg:#fdf3e3; --good:#256e45; --good-bg:#e4f3ea; --bad:#b3373c; --bad-bg:#fbe9e9;
  --shadow:0 1px 3px rgba(29,42,56,.08),0 4px 16px rgba(29,42,56,.06);
}
@media (prefers-color-scheme: dark){:root{
  --bg:#12171e; --grid:rgba(122,162,242,.045); --surface:#1a212b; --surface2:#232c38;
  --ink:#e6ebf1; --muted:#93a1b1; --line:#2b3542; --accent:#7aa2f2; --accent-soft:#233350;
  --amber:#e2a35c; --amber-bg:#33291a; --good:#58b083; --good-bg:#1d3328; --bad:#e07878; --bad-bg:#3a2224;
  --shadow:0 1px 3px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
}}
:root[data-theme="dark"]{
  --bg:#12171e; --grid:rgba(122,162,242,.045); --surface:#1a212b; --surface2:#232c38;
  --ink:#e6ebf1; --muted:#93a1b1; --line:#2b3542; --accent:#7aa2f2; --accent-soft:#233350;
  --amber:#e2a35c; --amber-bg:#33291a; --good:#58b083; --good-bg:#1d3328; --bad:#e07878; --bad-bg:#3a2224;
  --shadow:0 1px 3px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.3);
}
:root[data-theme="light"]{
  --bg:#f2f4f6; --grid:rgba(36,86,200,.05); --surface:#ffffff; --surface2:#eaeef2;
  --ink:#1d2a38; --muted:#5d6b7a; --line:#dbe1e8; --accent:#2456c8; --accent-soft:#e3ebfb;
  --amber:#a86510; --amber-bg:#fdf3e3; --good:#256e45; --good-bg:#e4f3ea; --bad:#b3373c; --bad-bg:#fbe9e9;
  --shadow:0 1px 3px rgba(29,42,56,.08),0 4px 16px rgba(29,42,56,.06);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;
  color:var(--ink);
  font:16px/1.55 var(--fb);
  min-height:100vh;
}
#app{max-width:880px;margin:0 auto;padding:0 16px 80px}
h1,h2,h3{font-family:var(--fh);line-height:1.25;text-wrap:balance;margin:0}
button{font:inherit;cursor:pointer;border:none;border-radius:9px}
button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
input[type=text]{font:inherit;color:var(--ink);background:var(--surface);border:1.5px solid var(--line);border-radius:9px;padding:9px 12px;max-width:100%}
input[type=text]:focus{border-color:var(--accent);outline:none}
.num{font-variant-numeric:tabular-nums}

.topbar{position:sticky;top:0;z-index:20;background:var(--surface);border-bottom:1px solid var(--line);margin:0 -16px 20px;padding:10px 16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.topbar .brand{font-family:var(--fh);font-weight:bold;font-size:17px;cursor:pointer;background:none;color:var(--ink);padding:4px 6px;display:flex;align-items:center;gap:8px}
.topbar .spacer{flex:1}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--surface2);color:var(--ink);border-radius:999px;padding:5px 13px;font-size:14px}
.chip.amber{background:var(--amber-bg);color:var(--amber);font-weight:600}
.chip.click{cursor:pointer}
.lbl{font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);font-weight:600}

.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:18px 20px}
.grid-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:14px}
.sheet-card{cursor:pointer;transition:transform .12s ease;display:flex;flex-direction:column;gap:8px;text-align:left}
.sheet-card:hover{transform:translateY(-2px)}
.sheet-card .title{font-family:var(--fh);font-size:19px;font-weight:bold}
.sheet-card .src{font-size:13px;color:var(--muted)}
.badge{display:inline-block;font-size:11px;letter-spacing:.05em;text-transform:uppercase;font-weight:700;border-radius:6px;padding:2px 8px}
.badge.train{background:var(--accent-soft);color:var(--accent)}
.badge.olymp{background:var(--amber-bg);color:var(--amber)}
.pbar{height:7px;background:var(--surface2);border-radius:99px;overflow:hidden}
.pbar>div{height:100%;background:var(--accent);border-radius:99px;transition:width .3s}
.pbar.gold>div{background:var(--amber)}

.grade-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 4px}
.grade-tabs button{background:var(--surface);border:1.5px solid var(--line);color:var(--ink);padding:8px 18px;border-radius:999px;font-weight:600}
.grade-tabs button.on{background:var(--accent);border-color:var(--accent);color:#fff}

.btn{background:var(--accent);color:#fff;padding:11px 20px;font-weight:600}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:var(--surface);color:var(--ink);border:1.5px solid var(--line)}
.btn.warn{background:var(--bad-bg);color:var(--bad)}
.btn.small{padding:7px 14px;font-size:14px}
.btn:disabled{opacity:.45;cursor:default}
.btnrow{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

.stars{color:var(--amber);letter-spacing:2px;font-size:14px}
.pnum{font-family:var(--fh);font-size:22px;font-weight:bold}
.statement{font-size:17px;margin:10px 0 4px}
.figure{background:#fbfbf8;border:1px solid var(--line);border-radius:10px;padding:12px;margin:12px 0;display:inline-block;max-width:100%;overflow-x:auto}
.figure svg{display:block;max-width:100%;height:auto}

.choices{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.choices label{display:flex;gap:10px;align-items:flex-start;background:var(--surface2);border:1.5px solid transparent;border-radius:10px;padding:10px 14px;cursor:pointer}
.choices label:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.choices input{margin-top:4px;accent-color:var(--accent)}
.parts{display:flex;flex-direction:column;gap:10px;margin:12px 0}
.parts .row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.parts .row .plabel{min-width:120px;font-weight:600;font-size:15px}
select{font:inherit;color:var(--ink);background:var(--surface);border:1.5px solid var(--line);border-radius:9px;padding:8px 10px}

.hint-box,.sol-box{border-radius:10px;padding:12px 16px;margin-top:12px;font-size:15px}
.hint-box{background:var(--amber-bg);border:1px solid color-mix(in srgb,var(--amber) 30%,transparent)}
.hint-box .lbl{color:var(--amber)}
.sol-box{background:var(--good-bg);border:1px solid color-mix(in srgb,var(--good) 30%,transparent)}
.sol-box .lbl{color:var(--good)}
.verdict{border-radius:10px;padding:10px 16px;margin-top:12px;font-weight:600}
.verdict.ok{background:var(--good-bg);color:var(--good)}
.verdict.no{background:var(--bad-bg);color:var(--bad)}

.dots{display:flex;gap:5px;flex-wrap:wrap;margin:8px 0 14px}
.dots button{width:26px;height:26px;border-radius:99px;background:var(--surface2);color:var(--muted);font-size:12px;font-weight:700;padding:0;border:1.5px solid var(--line)}
.dots button.done{background:var(--good-bg);color:var(--good);border-color:var(--good)}
.dots button.fail{background:var(--bad-bg);color:var(--bad);border-color:transparent}
.dots button.cur{border-color:var(--accent);color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}

.facts li{margin-bottom:10px}
.tech{background:var(--accent-soft);border-radius:10px;padding:12px 16px;margin-top:10px}
.tech b{color:var(--accent)}

.toast-wrap{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);z-index:99;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:var(--ink);color:var(--bg);border-radius:10px;padding:10px 18px;font-size:15px;box-shadow:var(--shadow);animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:translateY(8px)}to{opacity:1}}
@media (prefers-reduced-motion:reduce){.toast{animation:none}.sheet-card{transition:none}}

.statgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:14px 0}
.stat{background:var(--surface2);border-radius:12px;padding:12px 16px}
.stat .v{font-size:26px;font-weight:700;font-family:var(--fh)}
.hbar{display:grid;grid-template-columns:150px 1fr 52px;gap:10px;align-items:center;margin:7px 0;font-size:14px}
.hbar .bar{height:14px;background:var(--surface2);border-radius:4px;overflow:hidden}
.hbar .bar>div{height:100%;background:var(--accent);border-radius:4px 4px 4px 4px}
.hbar.low .bar>div{background:var(--bad)}
.ach-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-top:10px}
.ach{display:flex;gap:10px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--surface)}
.ach.off{opacity:.42;filter:grayscale(.7)}
.ach .e{font-size:24px}
.ach .n{font-weight:600;font-size:14px}
.ach .d{font-size:12px;color:var(--muted)}
.gap-card{border-left:4px solid var(--bad);padding-left:14px;margin-top:10px}

.timer{font-variant-numeric:tabular-nums;font-weight:700;font-size:18px;color:var(--amber)}
.timer.low{color:var(--bad)}
.olymp-item{border-top:1px solid var(--line);padding:16px 0}
.olymp-item:first-child{border-top:none}

.badge.game{background:#efe3fb;color:#7a3fb0}
@media (prefers-color-scheme:dark){.badge.game{background:#2e2140;color:#c9a6f0}}
:root[data-theme="dark"] .badge.game{background:#2e2140;color:#c9a6f0}
.rules-list{padding-left:20px;margin:8px 0 0}
.rules-list li{margin:6px 0}
.dice{display:flex;gap:8px;flex-wrap:wrap}
.die{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--surface2);border:1.5px solid var(--line);border-radius:10px;font-size:23px;font-weight:700;font-family:var(--fh)}
.jam-row{display:flex;gap:8px;flex-wrap:wrap}
.jam-num{width:48px;height:48px;font-size:21px;font-weight:700;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px}
.jam-num.jam-p{background:var(--accent);color:#fff;border-color:var(--accent)}
.jam-num.jam-a{background:var(--bad);color:#fff;border-color:var(--bad)}
.jam-num:disabled{cursor:default}
.magic{display:grid;grid-template-columns:repeat(3,46px);gap:4px;margin-top:10px}
.magic-cell{width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:var(--surface);border:1px solid var(--line);font-weight:700}
.magic-cell.jam-p{background:var(--accent);color:#fff}
.magic-cell.jam-a{background:var(--bad);color:#fff}
.dl-grid{display:grid;grid-template-columns:repeat(5,48px);gap:4px}
.dl-cell{width:48px;height:48px;font-size:22px;border:1.5px solid var(--line);background:var(--surface2);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.dl-cell.flower{background:#fef6d5;border-color:#e6c94a}
.dl-cell.seed{background:var(--surface);color:var(--accent);font-size:26px}
@media (prefers-color-scheme:dark){.dl-cell.flower{background:#3a3410;border-color:#7a6a1a}}
:root[data-theme="dark"] .dl-cell.flower{background:#3a3410;border-color:#7a6a1a}
.dl-compass{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}
.dl-dir{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:6px;background:var(--surface2);border:1px solid var(--line);font-size:16px}
.dl-dir.used{background:var(--accent-soft);color:var(--accent);border-color:var(--accent);font-weight:700}
.oc-grid{display:grid;grid-template-columns:repeat(6,44px);gap:3px}
.oc-cell{width:44px;height:44px;font-size:22px;font-weight:700;border:1.5px solid var(--line);background:var(--surface);color:var(--ink);border-radius:7px;display:flex;align-items:center;justify-content:center}
.oc-cell.oc-win{background:var(--good-bg);color:var(--good);border-color:var(--good)}
.oc-cell:disabled{cursor:default}
.lb-table{width:100%;border-collapse:collapse}
.lb-table th{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);text-align:left;padding:6px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
.lb-table td{padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
.lb-table tr:last-child td{border-bottom:none}
.lb-me{background:var(--accent-soft)}
.lb-rank{font-family:var(--fh);font-weight:700;font-size:19px;width:52px;text-align:center}
.vid-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.vid-item{display:flex;gap:12px;align-items:center;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;cursor:pointer;width:100%;color:var(--ink)}
.vid-item:hover{border-color:var(--accent);transform:translateY(-1px)}
.vid-num{font-family:var(--fh);font-weight:700;color:var(--muted);min-width:26px;text-align:right}
.vid-play{width:34px;height:34px;border-radius:50%;background:var(--bad);color:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;font-size:13px}
.vid-t{font-weight:600;line-height:1.3}
.vid-by{font-size:13px;color:var(--muted)}
.vid-frame{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:10px;overflow:hidden}
.vid-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vid-modal .card{max-width:760px;width:100%}
@media (max-width:420px){.oc-grid{grid-template-columns:repeat(6,40px)}.oc-cell{width:40px;height:40px}}
/* ===== обновлённый дизайн: топбар, герой, карточки ===== */
.topbar{gap:8px 14px}
.brand{gap:10px!important;font-size:18px!important}
.logo-tile{display:inline-grid;grid-template-columns:1fr 1fr;grid-auto-rows:1fr;gap:2px;width:34px;height:34px;border-radius:9px;background:linear-gradient(160deg,#3f7bff,#2450c8);padding:5px;box-shadow:0 3px 8px rgba(47,99,230,.4)}
.logo-tile b{color:#fff;font-family:var(--fh);font-size:11px;line-height:1;display:flex;align-items:center;justify-content:center}
.nav{display:flex;gap:2px;align-items:center;flex-wrap:wrap}
.nav-link{display:inline-flex;align-items:center;gap:6px;background:none;border:none;color:var(--muted);font-weight:600;font-size:15px;padding:8px 12px;border-radius:10px;cursor:pointer;font-family:inherit}
.nav-link:hover{background:var(--surface2);color:var(--ink)}
.nav-link.on{color:var(--accent);background:var(--accent-soft)}
.nav-link .i{font-size:15px;opacity:.9}
.pill{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--line);background:var(--surface);border-radius:11px;padding:7px 12px;font-weight:600;cursor:pointer;color:var(--ink);font:inherit;font-weight:600}
.pill:hover{border-color:var(--accent)}
.pts-chip{display:inline-flex;align-items:center;gap:6px;background:var(--amber-bg);color:var(--amber);border-radius:11px;padding:7px 13px;font-weight:700}
.bell{position:relative;width:38px;height:38px;border-radius:11px;border:1.5px solid var(--line);background:var(--surface);cursor:pointer;font-size:16px}
.bell .badge2{position:absolute;top:-5px;right:-5px;background:var(--bad);color:#fff;border-radius:99px;font-size:10px;min-width:17px;height:17px;display:flex;align-items:center;justify-content:center;padding:0 3px;font-weight:700}
.user-pill{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--line);background:var(--surface);border-radius:12px;padding:5px 10px 5px 5px;cursor:pointer;color:var(--ink);font:inherit;font-weight:600}
.user-pill:hover{border-color:var(--accent)}
.avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(160deg,#3f7bff,#2450c8);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex:0 0 auto}
.uname{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.hero{position:relative;overflow:hidden;border-radius:22px;padding:34px 38px;color:#eaf0ff;background:radial-gradient(130% 150% at 82% 8%,#22467e 0%,#16305a 42%,#101f3c 100%);box-shadow:0 14px 40px rgba(16,30,58,.30)}
.hero-doodle{position:absolute;inset:0;width:100%;height:100%;opacity:.55;pointer-events:none}
.hero-row{position:relative;z-index:1;display:flex;justify-content:space-between;gap:26px;flex-wrap:wrap;align-items:flex-start}
.hero-main{flex:1 1 360px;min-width:0}
.hero h1{font-size:clamp(28px,4.4vw,42px);color:#fff;line-height:1.1;letter-spacing:-.5px}
.hero .sub{font-size:17px;color:#b7c6e6;margin-top:12px;max-width:46ch}
.hero .sub .kb{color:#84a6f5;font-weight:700}
.hero .sub .kg{color:#6fd39b;font-weight:700}
.cta{background:linear-gradient(180deg,#4884ff,#2f63e6);color:#fff;padding:13px 24px;border-radius:12px;font-weight:700;font-size:16px;box-shadow:0 10px 22px rgba(47,99,230,.5);display:inline-flex;gap:9px;align-items:center;margin-top:22px}
.cta:hover{filter:brightness(1.06)}
.hero-card{flex:0 0 262px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:18px;color:#eaf0ff}
.hero-card .hc-top{display:flex;align-items:center;gap:9px;font-size:16px}
.hero-card .hc-top .fire{font-size:22px}
.hero-card .hc-sub{color:#a9bbdf;font-size:13px;margin-top:4px}
.hero-card hr{border:none;border-top:1px solid rgba(255,255,255,.14);margin:14px 0}
.hero-card .hc-lbl{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:#9db0d6;font-weight:600}
.hero-card .hc-prog{display:flex;align-items:baseline;gap:6px;font-family:var(--fh);font-weight:700;font-size:22px;margin:4px 0 8px}
.hero-card .hc-prog small{color:#a9bbdf;font-size:13px;font-family:inherit;font-weight:600}
.hero-card .hc-prog .gift{margin-left:auto;font-size:22px}
.hero-card .pbar{background:rgba(255,255,255,.16)}
@media (max-width:720px){.hero{padding:26px 22px}.hero-card{flex-basis:100%}}

.home-tabs-row{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:22px 0 4px}
.grade-tabs button{box-shadow:var(--shadow)}
.grade-tabs button.on{position:relative}
.grade-tabs button.on::after{content:'';position:absolute;top:9px;right:10px;width:7px;height:7px;border-radius:50%;background:#6fd39b}
.grade-tabs button.on{padding-right:26px}
.how-btn{display:inline-flex;align-items:center;gap:7px;background:none;border:none;color:var(--muted);font-weight:600;cursor:pointer;font:inherit;font-weight:600}
.how-btn:hover{color:var(--accent)}

.grid-cards{gap:16px}
.sheet-card{padding:20px 22px;gap:0;position:relative;overflow:hidden}
.sheet-card .card-wm{position:absolute;right:16px;top:14px;font-size:44px;opacity:.10;pointer-events:none;line-height:1}
.card-cat{font-size:11px;letter-spacing:.09em;text-transform:uppercase;font-weight:800}
.card-cat.train{color:var(--accent)}
.card-cat.olymp{color:var(--amber)}
.card-head{display:flex;align-items:center;gap:10px;margin-top:9px}
.card-ico{font-size:23px;line-height:1}
.card-ttl{font-family:var(--fh);font-size:20px;font-weight:bold;line-height:1.15}
.card-desc{color:var(--muted);font-size:13.5px;margin-top:8px;line-height:1.45}
.card-foot{display:flex;align-items:center;gap:12px;margin-top:16px}
.card-foot .prog{flex:1;min-width:0}
.card-foot .prog .lbl{margin-bottom:6px}
.card-arrow{width:36px;height:36px;border-radius:50%;border:1.5px solid var(--line);background:var(--surface);display:flex;align-items:center;justify-content:center;color:var(--accent);flex:0 0 auto;font-size:17px;transition:all .15s}
.sheet-card:hover .card-arrow{background:var(--accent);color:#fff;border-color:var(--accent)}

.name-modal{position:fixed;inset:0;background:rgba(10,15,22,.5);display:flex;align-items:center;justify-content:center;z-index:50;padding:16px}
.footer-note{color:var(--muted);font-size:13px;margin-top:26px;text-align:center}
a{color:var(--accent)}
@media (max-width:560px){
  .hbar{grid-template-columns:105px 1fr 46px;font-size:13px}
  .topbar{gap:8px}
  .statement{font-size:16px}
}