:root{
  --bg:#f6f7f9;--bg2:#eef1f5;--card:#fff;--text:#1a2030;--muted:#5f6b7d;--line:#d9dee6;
  --accent:#1d4ed8;--accent-ink:#fff;--accent-soft:#e0e8ff;--warn:#f5b301;
  --ok:#15803d;--okbg:#dcfce7;--bad:#b91c1c;--badbg:#fee2e2;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#12151b;--bg2:#171b22;--card:#1d222b;--text:#e8eaef;--muted:#9aa4b4;--line:#323a47;
  --accent:#6b9bff;--accent-ink:#0b1020;--accent-soft:#1d2a4a;
  --ok:#4ade80;--okbg:#163524;--bad:#f87171;--badbg:#3f1d1d;
}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.55 "Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--accent)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
h1,h2,h3{line-height:1.2;margin:0 0 12px}
h1{font-size:clamp(30px,5vw,46px);letter-spacing:-.01em;max-width:820px}
h2{font-size:clamp(24px,3.4vw,32px)}
h3{font-size:20px}
.muted{color:var(--muted)}.small{font-size:15px}

.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;padding:13px 22px;border-radius:10px;border:2px solid var(--accent);cursor:pointer;font:inherit;font-weight:600}
.btn:hover{filter:brightness(1.08)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--warn);outline-offset:2px}
.btn-ghost{background:transparent;color:var(--accent)}
.btn-sm{padding:8px 14px;font-size:15px}

.nav{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:10px}
.logo{font-weight:700;font-size:18px;color:var(--text);text-decoration:none;white-space:nowrap}
.logo-img{display:block;border-radius:7px;transition:transform .15s}
.logo-img:hover{transform:scale(1.06)}
.logo-img img{display:block;height:30px;width:auto}
@media (max-width:420px){.logo{display:none}}
.links{display:flex;gap:18px;margin-left:auto}
.links a{color:var(--muted);text-decoration:none;font-size:15px}
.links a:hover{color:var(--text)}
@media (max-width:760px){.links{display:none}.nav .btn-sm{margin-left:auto}}

.hero{padding:64px 0 48px}
.eyebrow{color:var(--accent);font-weight:600;font-size:15px;text-transform:uppercase;letter-spacing:.05em;margin:0 0 12px}
.lead{font-size:clamp(17px,2.2vw,20px);color:var(--muted);max-width:760px;margin:0 0 28px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.facts{display:flex;flex-wrap:wrap;gap:12px 32px;list-style:none;padding:0;margin:36px 0 0;color:var(--muted)}
.facts b{display:block;font-size:28px;color:var(--text)}

.section{padding:56px 0}
.section.alt{background:var(--bg2)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}

.quiz{max-width:760px;margin-top:20px}
.q-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:14px;margin-bottom:6px}
.q-topic{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;margin-bottom:8px}
.q-text{font-size:19px;font-weight:600;margin:0 0 16px}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{display:flex;gap:12px;text-align:left;width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);font:inherit;line-height:1.4;cursor:pointer}
.opt:hover:not(:disabled){border-color:var(--accent)}
.opt:disabled{cursor:default}
.opt .k{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--muted)}
.opt.ok{background:var(--okbg);border:2px solid var(--ok)}
.opt.ok .k{background:var(--ok);border-color:var(--ok);color:#fff}
.opt.bad{background:var(--badbg);border:2px solid var(--bad)}
.opt.bad .k{background:var(--bad);border-color:var(--bad);color:#fff}
.verdict{font-weight:600;min-height:1.5em;margin:14px 0 6px}
.verdict.ok{color:var(--ok)}.verdict.bad{color:var(--bad)}
.q-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:8px}
.big{font-size:40px;font-weight:700;margin:4px 0}

.steps{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;counter-reset:s}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;counter-increment:s}
.steps li::before{content:counter(s);display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-weight:700;margin-bottom:12px}
.steps b{display:block;font-size:18px;margin-bottom:6px}
.steps span{color:var(--muted)}

.topics{list-style:none;padding:0;margin:20px 0 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:12px}
.topics li{display:flex;justify-content:space-between;gap:16px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px}
.who-h{margin-top:28px}
.topics .n{color:var(--muted);white-space:nowrap;font-size:15px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin:20px 0 16px}
.price{display:flex;flex-direction:column}
.price ul{padding-left:20px;margin:0 0 20px;flex:1}
.price .sum{font-size:34px;font-weight:700;margin:0 0 12px}
.price .per{font-size:16px;font-weight:400;color:var(--muted)}
.price.best{border:2px solid var(--accent)}
.badge{display:inline-block;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:600;padding:3px 10px;border-radius:20px;margin-bottom:10px;align-self:flex-start}
.price .btn{text-align:center}

.company{display:grid;grid-template-columns:3fr 2fr;gap:32px;align-items:center}
.company ul{padding-left:20px}
.company-cta{background:var(--bg2);border-radius:12px;padding:20px}
@media (max-width:760px){.company{grid-template-columns:1fr}}

.faq{max-width:820px;margin-top:16px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;padding:16px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--muted)}

.final{text-align:center}
.final .muted{margin:0 0 20px}

/* ---- Страницы «Вопросы с ответами» ---- */
.topics a{color:var(--text);text-decoration:none;font-weight:600}
.topics li:hover{border-color:var(--accent)}
.topics li:hover a{color:var(--accent)}
.page{padding-top:20px;padding-bottom:48px;max-width:860px}
.page h1{font-size:clamp(26px,4vw,36px);margin-top:8px}
.page h2{margin-top:36px}
.page .lead{color:var(--muted);font-size:18px}
.crumbs{font-size:14px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.qa{padding-left:0;list-style:none;counter-reset:qa;margin:28px 0}
.qa>li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px;counter-increment:qa}
.qa-q{font-weight:600;margin:0 0 10px}
.qa-q::before{content:counter(qa) ". ";color:var(--muted)}
.qa-opts{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.qa-opts li{display:flex;gap:10px;padding:8px 10px;border-radius:8px;line-height:1.4}
.qa-opts .mark{flex:none;width:20px;text-align:center;font-weight:700}
.qa-opts li.ok{background:var(--okbg);color:var(--text)}
.qa-opts li.ok .mark{color:var(--ok)}
.more{margin-top:28px}
.more h2{margin-top:0}
.topic-links{padding-left:20px}
.topic-links li{margin:6px 0}
.topic-links.big li{font-size:19px;margin:10px 0}

/* ---- Форма «Запросить счёт» ---- */
.dialog{border:1px solid var(--line);border-radius:16px;padding:0;background:var(--card);color:var(--text);width:min(560px,calc(100vw - 32px));max-height:calc(100vh - 32px)}
.dialog::backdrop{background:rgba(10,15,30,.55)}
.dialog form,.dialog #lead-done{padding:22px 24px}
.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.dialog-head h3{margin:0}
.x{background:none;border:0;color:var(--muted);font-size:28px;line-height:1;cursor:pointer;padding:0 4px}
.dialog label{display:flex;flex-direction:column;gap:5px;font-size:15px;font-weight:600;margin-top:12px}
.dialog input,.dialog select,.dialog textarea{font:inherit;font-weight:400;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--text);width:100%}
.dialog input:focus,.dialog select:focus,.dialog textarea:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
.dialog .two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.dialog .two{grid-template-columns:1fr}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.lead-msg{min-height:1.2em;margin:6px 0 0}
.lead-msg.bad{color:var(--bad)}
.company-cta .btn{width:100%;text-align:center}
.lead-sum{font-weight:600;margin:12px 0 0;color:var(--accent)}
.corp-prices{border-collapse:collapse;margin-top:16px;font-size:15px;width:100%}
.corp-prices caption{text-align:left;font-weight:600;margin-bottom:6px}
.corp-prices th,.corp-prices td{border-bottom:1px solid var(--line);padding:7px 8px;text-align:right;white-space:nowrap}
.corp-prices th:first-child,.corp-prices td:first-child{text-align:left}
.corp-prices th span{color:var(--ok);font-weight:600}

/* ---- Веб-тренажёр ---- */
.hidden{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.app{padding-top:24px;padding-bottom:40px;min-height:70vh}
.app .card{margin-bottom:16px}
.acct{margin-left:auto}
.notice{padding:14px 18px;border-radius:12px;margin-bottom:16px;background:var(--accent-soft);color:var(--text)}
.notice.ok{background:var(--okbg)}.notice.bad{background:var(--badbg)}
.status{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 18px}
.status-btns{display:flex;gap:8px;flex-wrap:wrap}
#redeem-code{font:inherit;padding:11px 12px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);flex:1;min-width:200px;text-transform:uppercase;letter-spacing:.08em}
.login-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:12px}
@media (max-width:700px){.login-grid{grid-template-columns:1fr}}
.row-form{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
input[type=email],input[inputmode=numeric]{font:inherit;padding:11px 12px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--text);flex:1;min-width:200px}
#buy-email-wrap{margin:8px 0 12px;display:flex;flex-direction:column;gap:6px;max-width:420px}
.topics-pick label{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px solid var(--line);cursor:pointer}
.topics-pick label:last-child{border-bottom:0}
.topics-pick input{width:20px;height:20px;margin-top:3px;flex:none}
.cnt{color:var(--muted);margin-left:auto;white-space:nowrap;padding-left:10px;font-size:15px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}
.actions .btn{flex:1;min-width:160px}
.btn:disabled{opacity:.45;cursor:default;filter:none}
.progress{height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-bottom:14px}
.progress div{height:100%;background:var(--accent)}
.opt.sel{border:2px solid var(--accent);background:var(--accent-soft)}
.timer{font-variant-numeric:tabular-nums;font-weight:600;color:var(--text)}
.mistakes{padding-left:22px}
.mistakes li{margin-bottom:14px}
.mistakes p{margin:2px 0}
.mq{font-weight:600}
.ok-t{color:var(--ok)}.bad-t{color:var(--bad)}
.code-big{font-size:24px;letter-spacing:.12em;padding:0 6px}

.foot{border-top:1px solid var(--line);padding:28px 0 40px;color:var(--muted);font-size:14px}
.foot p{margin:6px 0}
.foot a{color:var(--muted)}