:root {
  color-scheme: light;
  --canvas: #f6f8fb;
  --ink: #101828;
  --muted: #596675;
  --surface: #ffffff;
  --line: #d7dee8;
  --blue: #0b7ee8;
  --blue-dark: #075bb0;
  --green: #0f8f68;
  --yellow: #f2b84b;
  --dark: #102033;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--canvas);
  color: var(--ink);
  line-height: 1.65;
}

a {
  color: var(--blue-dark);
  font-weight: 800;
  text-decoration: none;
}

a:hover { text-decoration: underline; }

img {
  display: block;
  max-width: 100%;
}

.wrap {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  padding: 26px 0 52px;
  border-bottom: 1px solid var(--line);
  background: #f8fafc;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 52px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 900;
  font-size: 17px;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  gap: 42px;
  align-items: center;
  padding-top: 68px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--blue-dark);
  font-weight: 900;
  font-size: 15px;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  background: var(--blue);
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
}

.lead {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(20px, 3vw, 24px);
}

.icon-panel {
  display: grid;
  place-items: center;
  min-height: 230px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 14px 40px rgba(16, 24, 40, 0.08);
}

.icon-panel img {
  width: 150px;
  height: 150px;
  border-radius: 26px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 900;
  box-shadow: 0 10px 28px rgba(16, 24, 40, 0.08);
}

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

.button.primary:hover {
  background: var(--blue-dark);
  text-decoration: none;
}

.button img {
  width: 22px;
  height: 22px;
  margin-right: 9px;
  border-radius: 5px;
}

main { padding: 34px 0 70px; }

article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 44px;
  align-items: start;
}

.content { min-width: 0; }

section { margin-top: 42px; }

h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 24px 0 8px;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0;
}

p, li {
  color: var(--muted);
  font-size: 18px;
}

ol, ul { padding-left: 22px; }

li + li { margin-top: 8px; }

.note {
  margin-top: 18px;
  padding: 18px;
  border-left: 6px solid var(--green);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  font-size: 17px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.card {
  min-height: 150px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(16, 24, 40, 0.06);
}

.card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
  color: var(--ink);
}

.steps {
  margin-top: 18px;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.steps li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 900;
}

.side {
  position: sticky;
  top: 20px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(16, 24, 40, 0.06);
}

.side strong {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.side a {
  display: block;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
}

.final {
  margin-top: 48px;
  padding: 28px;
  border-radius: 8px;
  background: var(--dark);
  color: #fff;
}

.final p { color: #d9e4f2; }

footer {
  padding: 24px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 15px;
}

@media (max-width: 820px) {
  .wrap {
    width: min(100% - 28px, 980px);
  }

  .hero,
  article,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 24px;
    padding-top: 44px;
  }

  .icon-panel {
    min-height: 154px;
  }

  .icon-panel img {
    width: 108px;
    height: 108px;
    border-radius: 22px;
  }

  .actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button { width: 100%; }

  .side { position: static; }
}