/* Лендинг «Передам ученика». Цвета и шрифт — как у academy-teachermentor (Onest, #181A26, #3454FF). */
@font-face{font-family:"Onest";src:url(onest-variable.woff2) format("woff2");font-weight:100 900;font-style:normal;font-display:swap}

:root{
  color-scheme:light;
  --ink:#181A26;
  --muted:#596473;
  --blue:#3454FF;
  --blue-dark:#2440D9;
  --blue-soft:#EBEEFF;
  --marker:#FFE57A;
  --card:#F4F5F8;
  --line:#E3E6EE;
  --green:#137A43;
  --bg:#FFFFFF;
  --radius:24px;
  --gutter:16px;
  --max:1120px;
  --font:"Onest",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
@media (min-width:768px){:root{--gutter:32px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.5 var(--font);overflow-x:hidden}
img,svg{display:block;max-width:100%}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--blue-dark)}
a:focus-visible,summary:focus-visible,.btn:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:12px}

.wrap{width:100%;max-width:calc(var(--max) + var(--gutter) * 2);margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-9999px;top:8px;z-index:20;padding:10px 14px;background:var(--ink);color:#fff;border-radius:10px}
.skip:focus{left:8px}

h2{font-size:clamp(28px,4.2vw,44px);line-height:1.1;font-weight:600;letter-spacing:-.03em;max-width:22ch}
h3{font-size:20px;line-height:1.25;font-weight:600;letter-spacing:-.01em}
section{padding:56px 0}
@media (min-width:900px){section{padding:88px 0}}
.section-lead{margin-top:12px;color:var(--muted);font-size:18px}

/* ---------- шапка ---------- */
.top{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:saturate(1.4) blur(8px)}
.top__in{display:flex;align-items:center;gap:16px;min-height:60px}
.top__brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;min-width:0}
.top__brand img{width:66px;height:28px;flex:none}
.top__name{font-weight:600;font-size:16px;white-space:nowrap;padding-left:10px;border-left:1px solid var(--line)}
.top__nav{display:none}
.top__cta{margin-left:auto;padding:9px 16px;border-radius:999px;background:var(--blue);color:#fff;font-weight:600;font-size:15px;text-decoration:none;white-space:nowrap}
.top__cta:hover{background:var(--blue-dark)}
@media (min-width:960px){
  .top__nav{display:flex;gap:28px;margin-left:auto}
  .top__nav a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
  .top__nav a:hover{color:var(--blue-dark)}
  .top__cta{margin-left:12px}
}

/* ---------- кнопки ---------- */
.cta-row{display:flex;flex-direction:column;gap:12px;margin-top:28px}
@media (min-width:560px){.cta-row{flex-direction:row;flex-wrap:wrap}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:0 26px;border-radius:16px;font:600 17px/1.2 var(--font);text-decoration:none;text-align:center;transition:background .2s,border-color .2s}
.btn__ico{width:22px;height:22px;flex:none}
.btn--tg{background:var(--blue);color:#fff}
.btn--tg:hover{background:var(--blue-dark)}
.btn--max{background:#fff;color:var(--ink);border:2px solid var(--ink)}
.btn--max:hover{background:var(--card)}
.btn--soon{background:var(--card);color:var(--muted);border:2px dashed #C3C9D6;cursor:default}
.cta-note{margin-top:12px;font-size:15px;color:var(--muted)}

/* ---------- первый экран ---------- */
.hero{padding:32px 0 56px;background:linear-gradient(180deg,#F1F3FF 0%,#FFFFFF 100%)}
.hero__in{display:grid;gap:40px;align-items:center}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--blue-dark)}
.hero h1{margin-top:12px;font-size:clamp(34px,6vw,60px);line-height:1.05;font-weight:650;letter-spacing:-.035em;max-width:16ch}
.hero__lead{margin-top:16px;font-size:18px;line-height:1.5;color:#3C4452;max-width:36em}
.hero__trust{margin-top:20px;font-size:15px;color:var(--muted)}
@media (min-width:960px){
  .hero{padding:64px 0 48px}
  .hero__in{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px}
  .hero__lead{font-size:20px}
}

/* пример заявки */
.demo{position:relative;max-width:420px;width:100%;justify-self:center}
.demo__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 44px;box-shadow:0 24px 48px -32px rgba(24,26,38,.35)}
.demo__tag{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.demo__title{margin-top:8px;font-size:24px;font-weight:650;letter-spacing:-.02em}
.demo__facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.demo__facts li{padding:6px 12px;border-radius:999px;background:var(--card);font-size:15px;font-weight:500}
.demo__rows{display:grid;gap:8px;margin-top:16px;font-size:15px}
.demo__rows div{display:flex;flex-wrap:wrap;gap:4px 10px}
.demo__rows dt{color:var(--muted)}
.demo__rows dd{font-weight:500}
.demo__safe{display:flex;align-items:center;gap:8px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:14px;font-weight:500;color:var(--green)}
.demo__safe svg{width:20px;height:20px;flex:none}
.demo__terms{position:relative;margin:-28px -4px 0 auto;width:min(270px,82%);padding:16px 18px;border-radius:20px;background:var(--ink);color:#fff;box-shadow:0 20px 40px -24px rgba(24,26,38,.6)}
.demo__terms .demo__tag{color:#B9C0D0}
.demo__sum{margin-top:6px;font-size:17px;font-weight:600;line-height:1.3}
.demo__accept{display:inline-block;margin-top:12px;padding:8px 14px;border-radius:12px;background:var(--marker);color:var(--ink);font-size:14px;font-weight:600}
@media (min-width:960px){.demo__terms{margin-right:-28px}}

/* ---------- ситуация ---------- */
.pain__grid{display:grid;gap:16px;margin-top:28px}
@media (min-width:768px){.pain__grid{grid-template-columns:1fr 1fr}}
.pain__card{padding:24px;border-radius:var(--radius);background:var(--card)}
.pain__card p{margin-top:10px;color:#3C4452}
.pain__now{margin-top:24px;max-width:44em;font-size:19px;line-height:1.5;font-weight:500}

/* ---------- шаги ---------- */
.how{background:var(--card)}
.steps{display:grid;gap:14px;margin-top:32px;counter-reset:step}
.step{position:relative;padding:24px;border-radius:var(--radius);background:#fff;counter-increment:step}
.step::after{content:counter(step);position:absolute;top:22px;right:24px;font-size:15px;font-weight:600;color:#8A93A3;font-variant-numeric:tabular-nums}
.step__ico{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--blue-soft);color:var(--blue-dark)}
.step__ico svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.step h3{margin-top:16px}
.step p{margin-top:8px;font-size:16px;color:#3C4452}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1100px){.steps{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.step{padding:22px 20px}.step h3{font-size:18px}.step p{font-size:15px}}

/* ---------- две стороны ---------- */
.sides__grid{display:grid;gap:16px;margin-top:28px}
@media (min-width:768px){.sides__grid{grid-template-columns:1fr 1fr}}
.side{padding:26px;border-radius:var(--radius);border:1px solid var(--line)}
.side--take{background:var(--blue-soft);border-color:transparent}
.ticks{display:grid;gap:14px;margin-top:18px}
.ticks li{position:relative;padding-left:32px}
.ticks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--blue) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='m6 10.2 2.6 2.6L14 7.4' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/20px no-repeat}

/* ---------- правила ---------- */
.rules{background:#FBFBFC;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.rules__grid{display:grid;gap:24px;margin-top:28px;align-items:start}
@media (min-width:960px){.rules__grid{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:40px}}
.rules__list{display:grid;gap:0;counter-reset:rule}
.rules__list li{position:relative;padding:16px 0 16px 44px;border-bottom:1px solid var(--line);counter-increment:rule;color:#3C4452}
.rules__list li:first-child{border-top:1px solid var(--line)}
.rules__list li::before{content:counter(rule);position:absolute;left:0;top:15px;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;font-size:14px;font-weight:600}
.rules__list b{display:block;color:var(--ink);font-weight:600;margin-bottom:2px}
.example{padding:24px;border-radius:var(--radius);background:var(--marker)}
.example__tag{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.example p+p{margin-top:10px}
.example__formula{font-size:22px;font-weight:500;letter-spacing:-.01em}
.example__formula b{font-weight:700}
.example__note{font-size:15px}
@media (min-width:960px){.example{position:sticky;top:96px}}
.more{margin-top:24px;font-weight:600}

/* ---------- доверие ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:10px;margin-top:28px}
@media (min-width:640px){.stats{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}}
.stats li{padding:16px 14px;border-radius:18px;background:var(--ink);color:#DCE0EA;font-size:14px;line-height:1.3}
@media (min-width:640px){.stats li{padding:20px 22px;font-size:16px}}
.stats b{display:block;margin-bottom:4px;color:#fff;font-size:clamp(30px,4vw,40px);line-height:1.1;font-weight:650;letter-spacing:-.03em}
.trust__grid{display:grid;gap:14px;margin-top:28px}
@media (min-width:700px){.trust__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.trust__grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.trust__card{padding:24px;border-radius:var(--radius);background:var(--card)}
.trust__card p{margin-top:8px;font-size:16px;color:#3C4452}
.trust__card--brand{background:#fff;border:1px solid var(--line)}
.trust__logo{width:94px;height:40px;margin-bottom:16px}

/* ---------- вопросы ---------- */
.faq__in{display:grid;gap:28px}
@media (min-width:960px){.faq__in{grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:48px;align-items:start}}
.faq__list{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{position:relative;display:block;padding:20px 44px 20px 0;font-size:18px;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:26px;width:12px;height:12px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg);top:31px}
.faq details p{padding:0 0 22px;color:#3C4452;max-width:40em}

/* ---------- финал ---------- */
.final{background:var(--ink);color:#fff}
.final__in{text-align:left}
@media (min-width:960px){.final__in{text-align:center}.final h2{margin:0 auto}.final .cta-row{justify-content:center}}
.final h2{color:#fff}
.final p{margin-top:12px;font-size:18px;color:#C9CEDA}
.final .btn--max{background:transparent;color:#fff;border-color:#fff}
.final .btn--max:hover{background:rgba(255,255,255,.08)}
.final .btn--soon{background:transparent;color:#C9CEDA;border-color:#596173}
.final .cta-note{color:#C9CEDA}
.final a:focus-visible{outline-color:var(--marker)}

/* ---------- подвал ---------- */
.foot{padding:28px 0 36px;border-top:1px solid var(--line);font-size:15px;color:var(--muted)}
.foot__in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 32px}
.foot__brand{display:flex;align-items:center;gap:12px}
.foot__brand img{width:66px;height:28px}
.foot__nav{display:flex;flex-wrap:wrap;gap:8px 24px}
.foot__nav a{color:var(--ink);font-weight:500}