@import url('https://fonts.googleapis.com/css2?family=Ubuntu+Sans+Mono:wght@400;600;700&family=Merriweather+Sans:wght@300;400;600;800&display=swap');

:root{
  --ice-shell:#dce9ef;
  --ice-core:#12333f;
  --ice-bubble:#41b4c6;
  --ice-frost:#eef5f8;
  --ice-rime:#c3d9e2;
  --ice-deep:#0b232c;
  --ice-text:#14262e;
  --ice-mute:#4f6b76;
  --ice-mono:'Ubuntu Sans Mono',ui-monospace,monospace;
  --ice-sans:'Merriweather Sans',system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ice-shell);
  background-image:
    repeating-linear-gradient(180deg,rgba(255,255,255,.55) 0 2px,rgba(255,255,255,0) 2px 58px),
    repeating-linear-gradient(180deg,rgba(18,51,63,.055) 0 1px,rgba(18,51,63,0) 1px 26px);
  color:var(--ice-text);
  font-family:var(--ice-sans);
  font-size:17px;
  line-height:1.72;
  -webkit-text-size-adjust:100%;
}

.ice-shaft{max-width:1000px;margin:0 auto;padding:0 22px 64px}

/* ---------- hero: срез керна ---------- */
.ice-head{
  background:linear-gradient(176deg,var(--ice-deep) 0%,var(--ice-core) 46%,#1b4a5a 100%);
  color:var(--ice-frost);
  border-bottom:6px solid var(--ice-bubble);
  position:relative;
  overflow:hidden;
}
.ice-head::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 12% 22%,rgba(65,180,198,.48) 0 4px,transparent 5px),
    radial-gradient(circle at 31% 68%,rgba(220,233,239,.40) 0 7px,transparent 8px),
    radial-gradient(circle at 58% 18%,rgba(65,180,198,.34) 0 9px,transparent 10px),
    radial-gradient(circle at 74% 74%,rgba(220,233,239,.30) 0 5px,transparent 6px),
    radial-gradient(circle at 88% 38%,rgba(65,180,198,.40) 0 6px,transparent 7px),
    radial-gradient(circle at 44% 90%,rgba(220,233,239,.22) 0 11px,transparent 12px);
  pointer-events:none;
}
.ice-head::after{
  content:"";
  position:absolute;left:0;right:0;top:0;bottom:0;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.09) 0 1px,transparent 1px 34px);
  pointer-events:none;
}
.ice-head-in{position:relative;z-index:2;max-width:1000px;margin:0 auto;padding:30px 22px 40px}

.ice-brandbar{
  display:flex;align-items:center;gap:14px;
  font-family:var(--ice-mono);
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ice-bubble);
}
.ice-brandbar span:last-child{color:rgba(220,233,239,.66);letter-spacing:.06em}
.ice-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;flex:0 0 44px;
  border:2px solid var(--ice-bubble);
  border-radius:3px 3px 20px 20px;
  color:var(--ice-frost);font-weight:700;font-size:15px;
  background:rgba(65,180,198,.14);
}

h1{
  font-size:clamp(28px,4.4vw,45px);
  line-height:1.16;
  margin:22px 0 14px;
  font-weight:800;
  letter-spacing:-.015em;
}
.ice-lead{
  font-size:18px;
  max-width:44em;
  color:rgba(233,244,248,.92);
  margin:0 0 26px;
}
.ice-lead em{font-style:normal;color:var(--ice-bubble);font-family:var(--ice-mono)}

/* KPI как колонка керна, разложенная горизонтально */
.ice-kpi{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:2px;
  border:2px solid rgba(65,180,198,.55);
  border-radius:4px 4px 26px 26px;
  overflow:hidden;
  background:rgba(65,180,198,.5);
  margin:0 0 26px;
}
.ice-kpi div{
  background:rgba(8,28,36,.82);
  padding:16px 14px 18px;
  text-align:left;
}
.ice-kpi dt,.ice-kpi .k{
  display:block;
  font-family:var(--ice-mono);
  font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(195,217,226,.72);
  margin-bottom:6px;
}
.ice-kpi .v{
  display:block;font-size:21px;font-weight:800;color:var(--ice-frost);line-height:1.2;
}
.ice-kpi .u{display:block;font-size:12px;color:var(--ice-bubble);font-family:var(--ice-mono);margin-top:4px}

.ice-cta{
  display:inline-block;
  font-family:var(--ice-mono);
  font-weight:700;font-size:15px;letter-spacing:.06em;
  padding:15px 34px;
  border-radius:3px 3px 18px 18px;
  text-decoration:none;
  background:var(--ice-bubble);
  color:#06212a;
  border:2px solid #7fd4e0;
}
.ice-cta:hover{background:#7fd4e0}
.ice-cta-note{
  display:block;margin-top:10px;font-size:13px;
  color:rgba(220,233,239,.6);font-family:var(--ice-mono);
}

/* ---------- слои-секции со шкалой глубины слева ---------- */
.ice-layer{
  position:relative;
  counter-increment:icelayer;
  padding:34px 0 8px 78px;
  border-top:1px solid var(--ice-rime);
}
.ice-layer:first-of-type{border-top:none}
.ice-layer::before{
  content:counter(icelayer,decimal-leading-zero);
  position:absolute;left:0;top:38px;
  width:54px;
  font-family:var(--ice-mono);
  font-size:12px;letter-spacing:.08em;
  color:var(--ice-mute);
  border-right:2px solid var(--ice-bubble);
  padding-right:10px;
  text-align:right;
}
.ice-layer::after{
  content:"";
  position:absolute;left:52px;top:44px;
  width:9px;height:9px;border-radius:50%;
  background:var(--ice-shell);
  border:2px solid var(--ice-bubble);
}
.ice-shaft{counter-reset:icelayer}

h2{
  font-size:clamp(21px,2.7vw,29px);
  line-height:1.26;
  font-weight:800;
  margin:0 0 6px;
  color:var(--ice-core);
  letter-spacing:-.01em;
}
.ice-depth{
  font-family:var(--ice-mono);
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ice-bubble);
  margin:0 0 14px;
}
h3{
  font-size:18px;font-weight:800;margin:26px 0 8px;color:var(--ice-core);
  font-family:var(--ice-mono);letter-spacing:-.01em;
}
p{margin:0 0 14px}
.ice-hl{color:var(--ice-core);font-weight:800}
.ice-num{font-family:var(--ice-mono);font-weight:700;color:#0d4d5e}

ul{margin:0 0 16px;padding-left:0;list-style:none}
ul li{position:relative;padding-left:22px;margin-bottom:7px}
ul li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:rgba(65,180,198,.35);
  border:1px solid var(--ice-bubble);
}

/* ---------- таблицы: керн в разрезе ---------- */
.ice-wrap{overflow-x:auto;margin:0 0 18px;border-radius:3px 3px 16px 16px;border:1px solid var(--ice-rime);background:var(--ice-frost)}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px}
caption{
  caption-side:top;text-align:left;
  font-family:var(--ice-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ice-mute);padding:12px 14px 8px;
}
th{
  background:var(--ice-core);color:var(--ice-frost);
  font-family:var(--ice-mono);font-size:12px;letter-spacing:.07em;text-transform:uppercase;
  text-align:left;padding:11px 13px;font-weight:600;
}
td{padding:11px 13px;border-top:1px solid var(--ice-rime);vertical-align:top}
tbody tr:nth-child(even) td{background:rgba(195,217,226,.30)}

/* ---------- ступени клуба: линзы разной ширины ---------- */
.ice-club{display:flex;flex-direction:column;gap:7px;margin:0 0 18px}
.ice-club div{
  display:flex;align-items:baseline;gap:12px;
  background:linear-gradient(90deg,rgba(65,180,198,.30),rgba(65,180,198,.06));
  border-left:4px solid var(--ice-bubble);
  border-radius:0 22px 22px 0;
  padding:9px 16px;
}
.ice-club .n{font-family:var(--ice-mono);font-weight:700;font-size:16px;min-width:9.5em}
.ice-club .p{font-family:var(--ice-mono);font-weight:700;color:#0d4d5e}
.ice-club .d{font-size:14px;color:var(--ice-mute)}
.ice-club div:nth-child(1){width:60%}
.ice-club div:nth-child(2){width:70%}
.ice-club div:nth-child(3){width:80%}
.ice-club div:nth-child(4){width:90%}
.ice-club div:nth-child(5){width:100%}

/* ---------- врезка ---------- */
.ice-note{
  background:var(--ice-frost);
  border:1px solid var(--ice-rime);
  border-top:4px solid var(--ice-bubble);
  border-radius:2px 2px 18px 18px;
  padding:16px 18px;margin:0 0 18px;
}
.ice-note p:last-child{margin-bottom:0}
.ice-note .t{
  font-family:var(--ice-mono);font-size:12px;letter-spacing:.11em;text-transform:uppercase;
  color:var(--ice-mute);display:block;margin-bottom:6px;
}

.ice-quote{
  background:linear-gradient(180deg,rgba(65,180,198,.16),rgba(65,180,198,.04));
  border-radius:3px 3px 24px 24px;
  padding:18px 20px;margin:0 0 18px;
  border:1px solid rgba(65,180,198,.4);
}
.ice-quote p{font-size:16px;margin-bottom:8px}
.ice-quote .who{font-family:var(--ice-mono);font-size:13px;color:var(--ice-mute)}

/* ---------- FAQ ---------- */
details{
  border:1px solid var(--ice-rime);
  background:var(--ice-frost);
  border-radius:2px 2px 16px 16px;
  margin-bottom:8px;
  padding:0 16px;
}
summary{
  cursor:pointer;padding:13px 0;font-weight:800;font-size:16px;color:var(--ice-core);
  list-style:none;display:flex;gap:10px;align-items:flex-start;
}
summary::-webkit-details-marker{display:none}
summary::before{
  content:"◦";color:var(--ice-bubble);font-size:20px;line-height:1.2;
}
details[open] summary::before{content:"•"}
details p{padding-bottom:12px;margin:0;font-size:16px}

/* ---------- витрина тайтлов ---------- */
.ice-games{
  display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 18px;
}
.ice-games article{
  background:var(--ice-frost);
  border:1px solid var(--ice-rime);
  border-radius:2px 2px 18px 18px;
  padding:13px 14px 15px;
}
.ice-games h4{margin:0 0 4px;font-size:15px;font-family:var(--ice-mono);color:var(--ice-core)}
.ice-games .st{font-size:13px;color:var(--ice-mute);display:block;margin-bottom:8px}
.ice-games .rt{font-family:var(--ice-mono);font-size:13px;color:#0d4d5e;display:block}
.ice-games .cap{font-size:13px;color:var(--ice-mute);display:block}

/* ---------- финал ---------- */
.ice-sources{
  background:var(--ice-core);color:rgba(233,244,248,.9);
  border-radius:3px 3px 26px 26px;
  padding:24px 26px;margin:32px 0 0;
}
.ice-sources h2{color:var(--ice-frost)}
.ice-sources .ice-depth{color:var(--ice-bubble)}
.ice-sources ul li::before{background:rgba(65,180,198,.5)}
.ice-sources a{color:var(--ice-bubble)}

.ice-end{text-align:center;padding:34px 0 8px}

footer{
  background:var(--ice-deep);
  color:rgba(195,217,226,.8);
  border-top:6px solid var(--ice-bubble);
  font-size:14px;
}
.ice-foot{max-width:1000px;margin:0 auto;padding:28px 22px 34px}
.ice-foot p{margin:0 0 9px}
.ice-legal{font-family:var(--ice-mono);font-size:12.5px;line-height:1.7;color:rgba(195,217,226,.62)}
.ice-18{
  display:inline-block;margin-top:12px;
  font-family:var(--ice-mono);font-size:13px;
  color:#a9e6ef;
  border:1px solid rgba(65,180,198,.5);
  border-radius:2px 2px 14px 14px;
  padding:7px 14px;
}

@media (max-width:640px){
  body{font-size:16px;line-height:1.68}
  .ice-head-in{padding:22px 16px 30px}
  .ice-shaft{padding:0 16px 46px}
  .ice-kpi{grid-template-columns:1fr 1fr}
  .ice-kpi div:last-child{grid-column:1 / -1}
  .ice-layer{padding:26px 0 6px 0}
  .ice-layer::before{
    position:static;display:inline-block;width:auto;
    border-right:none;border-bottom:2px solid var(--ice-bubble);
    padding:0 0 2px 0;text-align:left;margin-bottom:8px;
  }
  .ice-layer::after{display:none}
  .ice-games{grid-template-columns:1fr}
  .ice-club div{width:100% !important;flex-wrap:wrap;gap:6px}
  .ice-club .n{min-width:0}
  .ice-cta{display:block;text-align:center;padding:15px 12px}
  .ice-sources{padding:20px 16px}
  h1{font-size:27px}
}