:root{
  --bg:#0a0b0f;
  --bg2:#101219;
  --card:#14161f;
  --card2:#191c27;
  --line:#242836;
  --line2:#333849;
  --tx:#f2f4f9;
  --dim:#98a0b4;
  --dim2:#6d7488;
  --acc:#7c5cff;
  --acc-lo:#5b3ce0;
  --mint:#00e0b0;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--tx);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 500px at 78% -8%, rgba(124,92,255,.20), transparent 62%),
    radial-gradient(700px 420px at 8% 4%, rgba(0,224,176,.10), transparent 60%);
  background-repeat:no-repeat;
}
.wrap{max-width:1060px;margin:0 auto;padding:0 24px}
a{color:var(--mint);text-decoration:none}
a:hover{text-decoration:underline}

/* --- шапка --- */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:26px 0}
.logo{
  font-weight:800;letter-spacing:1.4px;font-size:15px;color:var(--tx);
  text-decoration:none;display:inline-flex;align-items:center;gap:9px;
}
.logo:hover{text-decoration:none}
.logo .dot{width:9px;height:9px;border-radius:50%;
  background:linear-gradient(135deg,var(--acc),var(--mint));box-shadow:0 0 14px rgba(124,92,255,.8)}
.topbar nav a{color:var(--dim);font-size:15px;margin-left:22px}
.topbar nav a:hover{color:var(--tx);text-decoration:none}

/* --- герой --- */
.hero{padding:64px 0 12px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.3px;
  color:var(--mint);background:rgba(0,224,176,.09);border:1px solid rgba(0,224,176,.22);
  padding:7px 14px;border-radius:999px;margin-bottom:24px;
}
h1{
  font-size:clamp(34px,5.4vw,60px);line-height:1.06;margin:0 0 22px;
  letter-spacing:-1.4px;font-weight:800;
}
h1 .grad{
  background:linear-gradient(100deg,var(--acc) 10%,var(--mint) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{font-size:clamp(17px,2.1vw,21px);color:var(--dim);margin:0;max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;align-items:center}
.btn{
  display:inline-block;padding:15px 30px;border-radius:14px;font-weight:650;font-size:16px;
  text-decoration:none;transition:transform .15s ease,box-shadow .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{
  background:linear-gradient(135deg,var(--acc),var(--acc-lo));color:#fff;
  box-shadow:0 10px 30px -10px rgba(124,92,255,.85);
}
.btn-primary:hover{box-shadow:0 14px 36px -10px rgba(124,92,255,1)}
.btn-ghost{border:1px solid var(--line2);color:var(--tx);background:transparent}
.btn-ghost:hover{border-color:var(--dim2);background:rgba(255,255,255,.03)}
.hero-note{font-size:14px;color:var(--dim2);margin-top:16px}

/* --- секции --- */
section{padding:76px 0 0}
.sec-head{margin-bottom:34px}
h2{font-size:clamp(25px,3.2vw,36px);line-height:1.15;letter-spacing:-.7px;margin:0 0 10px;font-weight:750}
.sec-sub{color:var(--dim);font-size:17px;margin:0;max-width:620px}

.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(235px,1fr))}
.card{
  background:linear-gradient(180deg,var(--card2),var(--card));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
}
.card h3{font-size:18px;margin:0 0 8px;font-weight:650}
.card p{margin:0;color:var(--dim);font-size:15px}
.ico{
  width:38px;height:38px;border-radius:11px;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(124,92,255,.22),rgba(0,224,176,.16));
  border:1px solid var(--line2);
  display:flex;align-items:center;justify-content:center;
}
.ico svg{width:20px;height:20px}

/* --- шаги --- */
.steps{counter-reset:s;display:grid;gap:2px;margin-top:8px}
.step{
  display:flex;gap:18px;align-items:flex-start;padding:20px 24px;
  background:var(--card);border:1px solid var(--line);
}
.step:first-child{border-radius:var(--radius) var(--radius) 0 0}
.step:last-child{border-radius:0 0 var(--radius) var(--radius)}
.step + .step{border-top:none}
.step .n{
  counter-increment:s;flex:0 0 30px;height:30px;border-radius:9px;
  background:rgba(124,92,255,.16);border:1px solid rgba(124,92,255,.34);
  color:#c8b9ff;font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step .n::before{content:counter(s)}
.step div:last-child{padding-top:3px}
.step b{font-weight:650}
.step span{color:var(--dim);display:block;font-size:15px;margin-top:2px}

/* --- тарифы --- */
.plans{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:stretch}
.plan{
  position:relative;background:linear-gradient(180deg,var(--card2),var(--card));
  border:1px solid var(--line);border-radius:22px;padding:30px 28px;
  display:flex;flex-direction:column;
}
.plan .btn{margin-top:auto}
.plan-hi{
  border-color:transparent;
  background:
    linear-gradient(180deg,#1b1e2b,#141620) padding-box,
    linear-gradient(150deg,var(--acc),var(--mint)) border-box;
  border:1.5px solid transparent;
  box-shadow:0 24px 60px -28px rgba(124,92,255,.85);
  transform:translateY(-6px);
}
.badge{
  position:absolute;top:-13px;left:28px;
  background:linear-gradient(135deg,var(--acc),var(--acc-lo));color:#fff;
  font-size:12.5px;font-weight:700;letter-spacing:.3px;
  padding:6px 14px;border-radius:999px;white-space:nowrap;
  box-shadow:0 8px 22px -8px rgba(124,92,255,1);
}
.badge-mint{background:linear-gradient(135deg,var(--mint),#00b28c);color:#04241d}
.plan h3{font-size:17px;margin:0 0 4px;font-weight:650;letter-spacing:.2px}
.plan .tag{color:var(--dim2);font-size:14px;margin:0 0 20px}
.amount{display:flex;align-items:baseline;gap:11px;flex-wrap:wrap;margin-bottom:6px}
.amount .now{font-size:44px;font-weight:800;letter-spacing:-1.6px;line-height:1}
.amount .per{font-size:15px;color:var(--dim)}
.amount .was{font-size:20px;color:var(--dim2);text-decoration:line-through;font-weight:600}
.after{color:var(--dim);font-size:14.5px;margin:0 0 22px}
.after b{color:var(--tx);font-weight:600}
.plan ul{list-style:none;padding:0;margin:0 0 26px}
.plan li{position:relative;padding-left:27px;margin:11px 0;color:var(--dim);font-size:15px}
.plan li::before{
  content:"";position:absolute;left:0;top:8px;width:15px;height:8px;
  border-left:2px solid var(--mint);border-bottom:2px solid var(--mint);
  transform:rotate(-45deg);border-radius:1px;
}
.plan .btn{width:100%;text-align:center;padding:14px 20px}

/* варианты предоплаты внутри карточки */
.terms{margin:4px 0 26px;display:grid;gap:9px}
.term{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.02);
}
.term b{font-weight:650;font-size:15px;display:block}
.term span{color:var(--dim2);font-size:13px;display:block;margin-top:1px}
.term-sum{font-size:19px;font-weight:750;letter-spacing:-.4px;white-space:nowrap}
.term-best{border-color:rgba(0,224,176,.34);background:rgba(0,224,176,.07)}
.term-best .term-sum{color:var(--mint)}
.plan-note{color:var(--dim2);font-size:14px;margin-top:22px;max-width:760px}

/* --- сравнение --- */
.compare{
  display:grid;gap:16px;grid-template-columns:1fr 1fr;margin-top:8px;
}
.compare > div{border-radius:var(--radius);padding:24px 26px;border:1px solid var(--line)}
.compare .them{background:var(--card);color:var(--dim)}
.compare .us{
  background:linear-gradient(180deg,rgba(124,92,255,.12),rgba(0,224,176,.06));
  border-color:rgba(124,92,255,.3);
}
.compare h4{margin:0 0 14px;font-size:14px;letter-spacing:.8px;text-transform:uppercase;color:var(--dim2);font-weight:650}
.compare .big{font-size:30px;font-weight:800;letter-spacing:-1px;color:var(--tx);margin-bottom:6px}
.compare p{margin:0;font-size:15px}

/* --- футер --- */
footer{
  margin-top:96px;padding:40px 0 56px;border-top:1px solid var(--line);
  color:var(--dim2);font-size:14px;
}
footer nav{margin-bottom:22px;display:flex;flex-wrap:wrap;gap:24px}
footer nav a{color:var(--dim)}
footer .req{
  display:flex;flex-wrap:wrap;gap:4px 14px;
  font-size:12px;line-height:1.55;color:#565c6e;
}
footer .req span{white-space:nowrap}
footer .req span + span::before{content:"·";margin-right:14px;color:#3a3f4e}
footer .req-note{font-size:12px;line-height:1.55;color:#565c6e;margin:10px 0 0;max-width:640px}

/* --- документы --- */
.doc{max-width:760px;padding-top:26px}
.doc h1{font-size:clamp(28px,4vw,40px);margin-bottom:26px}
.doc h2{font-size:24px;margin:44px 0 14px}
.doc p{color:var(--dim);font-size:15.5px}
.doc b{color:var(--tx)}
table{width:100%;border-collapse:collapse;font-size:15px}
td{padding:11px 0;border-bottom:1px solid var(--line);vertical-align:top}
tr:last-child td{border-bottom:none}
td:first-child{color:var(--dim2);width:42%;padding-right:18px}

@media(max-width:760px){
  .compare{grid-template-columns:1fr}
  .plan-hi{transform:none}
  section{padding-top:58px}
  .hero{padding-top:40px}
  .topbar nav a{margin-left:16px;font-size:14px}
}
@media(max-width:420px){
  .topbar nav{display:none}
  .btn{width:100%;text-align:center}
}

/* --- калькулятор экономии --- */
.calc{
  background:linear-gradient(180deg,var(--card2),var(--card));
  border:1px solid var(--line);border-radius:22px;padding:32px 30px;
}
.calc-q{display:block;color:var(--dim);font-size:15px;margin-bottom:6px}
.calc-val{
  display:block;font-size:44px;font-weight:800;letter-spacing:-1.6px;line-height:1;
  margin-bottom:22px;
  background:linear-gradient(100deg,var(--acc) 10%,var(--mint) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;height:8px;border-radius:99px;
  background:linear-gradient(90deg,var(--acc) 0%,var(--mint) var(--fill,20%),
             #232735 var(--fill,20%),#232735 100%);
  outline:none;margin:0;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:24px;height:24px;border-radius:50%;
  background:#fff;border:none;cursor:pointer;
  box-shadow:0 3px 14px -2px rgba(0,0,0,.85),0 0 0 5px rgba(124,92,255,.22);
}
input[type=range]::-moz-range-thumb{
  width:24px;height:24px;border-radius:50%;background:#fff;border:none;cursor:pointer;
  box-shadow:0 3px 14px -2px rgba(0,0,0,.85),0 0 0 5px rgba(124,92,255,.22);
}
.ticks{display:flex;justify-content:space-between;margin-top:11px;color:var(--dim2);font-size:13px}
.calc-res{display:grid;gap:16px;grid-template-columns:1fr 1fr;margin-top:30px}
.res{border:1px solid var(--line);border-radius:16px;padding:22px 24px;background:rgba(255,255,255,.02)}
.res h4{margin:0 0 10px;font-size:13px;letter-spacing:.8px;text-transform:uppercase;
  color:var(--dim2);font-weight:650}
.res-big{font-size:clamp(28px,4vw,38px);font-weight:800;letter-spacing:-1.2px;line-height:1;margin-bottom:10px}
.res p{margin:0;color:var(--dim);font-size:14px;line-height:1.5}
.res-money{background:linear-gradient(180deg,rgba(0,224,176,.10),rgba(0,224,176,.03));
  border-color:rgba(0,224,176,.28)}
.res-money .res-big{color:var(--mint)}
.calc-bar{
  margin-top:16px;padding:16px 22px;border-radius:14px;font-size:15px;
  background:rgba(124,92,255,.11);border:1px solid rgba(124,92,255,.28);color:#d3c9ff;
}

/* --- вопросы и ответы --- */
.faq{display:grid;gap:2px}
.faq details{background:var(--card);border:1px solid var(--line);padding:0 24px}
.faq details:first-of-type{border-radius:var(--radius) var(--radius) 0 0}
.faq details:last-of-type{border-radius:0 0 var(--radius) var(--radius)}
.faq details + details{border-top:none}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 34px 20px 0;position:relative;
  font-weight:600;font-size:16.5px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:4px;top:27px;width:9px;height:9px;
  border-right:2px solid var(--dim2);border-bottom:2px solid var(--dim2);
  transform:rotate(45deg);transition:transform .18s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);top:31px}
.faq details[open] summary{color:var(--tx)}
.faq p{margin:0 0 22px;color:var(--dim);font-size:15.5px;max-width:700px}

@media(max-width:640px){
  .calc-res{grid-template-columns:1fr}
  .calc{padding:26px 22px}
}