:root {
  --ink: #16201f;
  --muted: #65716f;
  --line: #dbe5e1;
  --paper: #fbfdfb;
  --mint: #cdeee4;
  --sea: #0f766e;
  --blue: #2457c5;
  --gold: #d59a2d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(22, 32, 31, 0.08);
  background: rgba(251, 253, 251, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  font-size: 24px;
  font-weight: 850;
  text-decoration: none;
  letter-spacing: 0;
}

nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}

nav a {
  text-decoration: none;
}

.hero {
  min-height: 78vh;
  display: grid;
  align-content: center;
  padding: 72px clamp(20px, 8vw, 120px);
  background:
    linear-gradient(120deg, rgba(205, 238, 228, 0.92), rgba(255, 255, 255, 0.5)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='700' viewBox='0 0 1200 700'%3E%3Cpath d='M0 510C160 430 270 530 410 456C530 392 635 198 798 232C946 263 1000 416 1200 334V700H0Z' fill='%230f766e' fill-opacity='.11'/%3E%3Cpath d='M0 360C190 258 350 350 520 270C710 181 770 82 970 124C1060 143 1120 194 1200 152V700H0Z' fill='%232457c5' fill-opacity='.08'/%3E%3C/svg%3E");
  background-size: cover;
  background-position: center;
}

.ru-hero,
.us-hero,
.investor-hero {
  min-height: 70vh;
}

.ru-hero {
  background:
    linear-gradient(120deg, rgba(205, 238, 228, 0.92), rgba(255, 255, 255, 0.58)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='700' viewBox='0 0 1200 700'%3E%3Cpath d='M0 520C180 440 280 530 430 455C590 375 710 210 890 242C1030 267 1100 380 1200 340V700H0Z' fill='%230f766e' fill-opacity='.12'/%3E%3C/svg%3E");
}

.us-hero {
  background:
    linear-gradient(120deg, rgba(228, 239, 255, 0.9), rgba(255, 255, 255, 0.55)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='700' viewBox='0 0 1200 700'%3E%3Cpath d='M0 370C180 260 340 350 520 270C720 180 820 120 1010 165C1100 186 1140 214 1200 190V700H0Z' fill='%232457c5' fill-opacity='.10'/%3E%3C/svg%3E");
}

.investor-hero {
  background:
    linear-gradient(120deg, rgba(250, 239, 216, 0.94), rgba(255, 255, 255, 0.54)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='700' viewBox='0 0 1200 700'%3E%3Cpath d='M0 500C220 380 360 470 540 365C710 267 790 165 970 210C1070 235 1120 300 1200 262V700H0Z' fill='%23d59a2d' fill-opacity='.13'/%3E%3C/svg%3E");
}

.eyebrow {
  color: var(--sea);
  font-size: 13px;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-bottom: 14px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 860px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
  margin-bottom: 22px;
}

h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.04;
  letter-spacing: 0;
  margin-bottom: 18px;
}

h3 {
  font-size: 22px;
}

.lead {
  max-width: 720px;
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.45;
  color: #33413f;
  margin-bottom: 30px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 18px;
  color: var(--ink);
  background: #fff;
  text-decoration: none;
  font-weight: 760;
  cursor: pointer;
}

.button.primary,
button {
  color: #fff;
  border-color: var(--sea);
  background: var(--sea);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.55);
}

.band,
.mission,
.problem,
.pricing,
.split,
.investor {
  padding: 70px clamp(20px, 7vw, 100px);
}

.mission {
  border-top: 1px solid var(--line);
  background: #fff;
}

.mission p,
.problem p {
  max-width: 840px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.62;
}

.problem {
  background: #fff;
  border-top: 1px solid var(--line);
}

.problem h2 {
  max-width: 920px;
}

.pricing {
  background: #fff;
  border-top: 1px solid var(--line);
}

.pricing strong {
  display: block;
  margin-bottom: 10px;
  font-size: 22px;
}

.plain-card {
  align-self: stretch;
}

.grid {
  display: grid;
  gap: 18px;
}

.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
}

article span {
  display: block;
  color: var(--gold);
  font-weight: 800;
  margin-bottom: 12px;
}

article p,
.split p,
.investor p,
li {
  color: var(--muted);
  line-height: 1.62;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(28px, 6vw, 84px);
  align-items: start;
  border-top: 1px solid var(--line);
}

.split.alt {
  background: #f1f7f5;
}

ul {
  padding-left: 20px;
}

.waitlist {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 24px;
  box-shadow: 0 18px 50px rgba(22, 32, 31, 0.08);
}

label {
  display: grid;
  gap: 7px;
  margin-bottom: 14px;
  color: #33413f;
  font-size: 14px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  font: inherit;
}

.note {
  margin: 14px 0 0;
  font-size: 12px;
}

.investor {
  text-align: left;
}

.investor > p {
  max-width: 780px;
  font-size: 18px;
}

.metrics {
  margin: 28px 0;
}

.metrics strong {
  display: block;
  font-size: 18px;
  margin-bottom: 8px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 7vw, 100px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

@media (max-width: 800px) {
  .topbar,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .three,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
  }
}