/* ЕГЭ/ОГЭ — тетрадь в клетку, школьный синий + маркер-жёлтый, дружелюбный. */
:root{
  --bg:#fbfbf8;--paper:#ffffff;--ink:#1d2433;--mut:#64708a;--line:#e4e7ee;--cell:#eef1f6;
  --blue:#2b5cd9;--blue-d:#1e46ad;--marker:#ffe45c;
  --max:1160px;--ease:cubic-bezier(.32,.72,0,1);
  --font:'Manrope',-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
  background:var(--bg);background-image:linear-gradient(var(--cell) 1px,transparent 1px),linear-gradient(90deg,var(--cell) 1px,transparent 1px);background-size:28px 28px}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.mark{background:linear-gradient(transparent 55%,var(--marker) 55% 92%,transparent 92%)}
.btn{display:inline-flex;align-items:center;gap:11px;padding:8px 8px 8px 24px;border-radius:100px;font-weight:800;font-size:15px;cursor:pointer;border:0;transition:all .45s var(--ease)}
.btn .cir{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:14px;transition:transform .45s var(--ease)}
.btn:hover .cir{transform:translate(2px,-1px) scale(1.06)}
.btn:active{transform:scale(.98)}
.btn--blue{background:var(--blue);color:#fff;box-shadow:0 12px 28px rgba(43,92,217,.24)}.btn--blue .cir{background:rgba(255,255,255,.16)}
.btn--blue:hover{background:var(--blue-d)}
.btn--ghost{background:var(--paper);border:1.5px solid var(--line);color:var(--ink)}.btn--ghost .cir{background:var(--bg)}
.btn--wide{width:100%;justify-content:space-between}

.hdr{position:sticky;top:0;z-index:100;background:rgba(251,251,248,.92);backdrop-filter:blur(10px);border-bottom:1.5px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.logo{font-weight:800;font-size:19px}.logo b{color:var(--blue)}
.nav{display:flex;gap:22px}.nav a{color:var(--mut);font-weight:600;font-size:14px}.nav a:hover{color:var(--ink)}
.burger{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--ink)}

.hero{padding:80px 0 64px;text-align:center}
.hero h1{font-size:clamp(36px,5.8vw,64px);line-height:1.04;font-weight:800;letter-spacing:-.03em;margin:0 0 18px}
.hero .lead{font-size:19px;color:var(--mut);max-width:560px;margin:0 auto 28px}
.hero .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:44px}
.hero .marks{display:flex;gap:38px;justify-content:center;flex-wrap:wrap}
.hero .marks b{font-size:30px;font-weight:800;color:var(--blue);display:block;line-height:1}
.hero .marks span{color:var(--mut);font-size:13px}

.head{text-align:center;max-width:620px;margin:0 auto 48px}
.head h2{font-size:clamp(27px,4vw,40px);font-weight:800;margin:0;line-height:1.1;letter-spacing:-.02em}
.head p{color:var(--mut);font-size:17px;margin:12px 0 0}

.subs{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.sub{padding:12px 20px;border:1.5px solid var(--line);border-radius:100px;background:var(--paper);font-weight:700;font-size:14px;cursor:pointer;transition:all .3s var(--ease)}
.sub:hover{border-color:var(--blue)}
.sub.on{background:var(--blue);border-color:var(--blue);color:#fff}

/* цель-калькулятор: тетрадный лист */
.goal{max-width:860px;margin:44px auto 0;background:var(--paper);border:1.5px solid var(--line);border-radius:20px;padding:8px;box-shadow:0 24px 54px rgba(29,36,51,.08)}
.goal .core{border:1.5px dashed var(--line);border-radius:14px;padding:34px;display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}
.goal h3{margin:0 0 6px;font-size:22px;font-weight:800}
.goal .sub2{color:var(--mut);font-size:14px;margin:0 0 22px}
.crow{margin-bottom:18px}
.crow label{display:flex;justify-content:space-between;font-weight:700;font-size:14px;margin-bottom:8px}
.crow label b{color:var(--blue)}
.crow input[type=range]{width:100%;accent-color:var(--blue)}
.goal .out{text-align:center;background:var(--bg);border-radius:14px;padding:24px}
.goal .out .l{color:var(--mut);font-size:13px}
.goal .out .big{font-size:44px;font-weight:800;color:var(--blue);line-height:1.05}
.goal .out .note{font-size:13px;color:var(--mut);margin:6px 0 16px}
.goal input[type=text]{width:100%;background:var(--paper);border:1.5px solid var(--line);border-radius:11px;padding:13px 15px;color:var(--ink);font:inherit;margin-bottom:9px}
.goal input[type=text]:focus{outline:none;border-color:var(--blue)}
.lp-consent{display:flex;gap:9px;align-items:flex-start;font-size:11px;color:var(--mut);margin:6px 0 12px;cursor:pointer;text-align:left}
.lp-consent input{margin:2px 0 0;width:16px;height:16px;flex:0 0 auto;accent-color:var(--blue)}
.lp-consent a{color:var(--blue-d);text-decoration:underline}

.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ft{background:var(--paper);border:1.5px solid var(--line);border-radius:18px;padding:26px;transition:all .4s var(--ease)}
.ft:hover{transform:translateY(-4px);border-color:var(--blue)}
.ft .em{font-size:26px;margin-bottom:12px}
.ft h3{font-size:17px;margin:0 0 6px}.ft p{color:var(--mut);font-size:14px;margin:0}

.res{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.r{background:var(--paper);border:1.5px solid var(--line);border-radius:18px;padding:26px;text-align:center}
.r .from{color:var(--mut);font-size:14px}
.r .to{font-size:38px;font-weight:800;color:var(--blue);line-height:1.1}
.r .who{color:var(--mut);font-size:13px;margin-top:8px}

.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cb{background:var(--paper);border:1.5px solid var(--line);border-radius:16px;padding:24px;transition:transform .4s var(--ease)}
.cb:hover{transform:translateY(-3px)}
.cb .ic{font-size:20px;margin-bottom:10px}
.cb b{display:block;font-size:15px}.cb span{color:var(--mut);font-size:13px}

.lp-flash{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:9998;max-width:520px;width:calc(100% - 36px);padding:15px 44px 15px 18px;border-radius:12px;font-weight:600;box-shadow:0 20px 50px rgba(0,0,0,.14)}
.lp-flash--ok{background:#e9f4ec;border:1.5px solid #2f9e63;color:#186b42}
.lp-flash--err{background:#eef2fd;border:1.5px solid var(--blue);color:var(--blue-d)}
.lp-flash__close{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:0;color:inherit;font-size:22px;cursor:pointer}

.footer{background:var(--ink);color:rgba(255,255,255,.72);padding:44px 0 28px}
.footer .top{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:22px}
.footer .logo{color:#fff}
.footer a:hover{color:#fff}
.footer .legal{border-top:1px solid rgba(255,255,255,.14);padding-top:18px;font-size:13px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

.reveal{opacity:0;transform:translateY(24px);transition:all .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.1s}.d2{transition-delay:.2s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}
@media(max-width:960px){
  .goal .core{grid-template-columns:1fr;padding:26px}
  .feats,.res{grid-template-columns:1fr}.contact{grid-template-columns:1fr}
  .nav{display:none}.burger{display:block}
}
@media(max-width:600px){.sec{padding:62px 0}.hero{padding:56px 0 48px}}

/* --- reviews / faq --- */
.revs2{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.rv2{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:26px}
.rv2 .st{color:var(--blue);letter-spacing:3px;margin-bottom:12px}
.rv2 p{font-size:14px;margin:0 0 16px}
.rv2 .who b{display:block;font-size:14px}.rv2 .who span{color:var(--mut);font-size:12px}
.faq2{max-width:760px;margin:0 auto}
.faq2 details{background:var(--paper);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq2 summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:700;font-size:16px;display:flex;justify-content:space-between;gap:14px}
.faq2 summary::-webkit-details-marker{display:none}
.faq2 summary .ar{color:var(--blue);transition:transform .3s var(--ease)}
.faq2 details[open] summary .ar{transform:rotate(45deg)}
.faq2 .a{padding:0 22px 18px;color:var(--mut);font-size:14px}
@media(max-width:960px){.revs2{grid-template-columns:1fr}}