:root {
  color-scheme: light dark;
  --background: #f7f9fc;
  --surface: #ffffff;
  --text: #08233f;
  --secondary: #40566d;
  --accent: #1255ab;
  --border: #dce4ec;
  --mint: #43d99b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #041522;
    --surface: #08233f;
    --text: #f5f8fb;
    --secondary: #c1ceda;
    --accent: #60bff0;
    --border: #24435f;
    --mint: #70e8b8;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main {
  width: min(980px, calc(100% - 32px));
  margin: 48px auto;
  padding: clamp(24px, 6vw, 56px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: var(--mint);
  background: #08233f;
  border: 3px solid #1683ff;
  border-radius: 12px;
  font-size: 25px;
}

h1, h2 { line-height: 1.15; letter-spacing: -0.025em; }
h1 { margin: 0 0 14px; font-size: clamp(36px, 7vw, 56px); }
h2 { margin: 36px 0 10px; font-size: 24px; }
h3 { margin: 14px 0 6px; font-size: 19px; }
p, li { color: var(--secondary); }
ul { padding-left: 24px; }
a { color: var(--accent); }
.lead { font-size: 21px; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 14px; font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.compatibility { font-size: 14px; margin-top: 16px; }
.button {
  display: inline-block;
  padding: 12px 18px;
  color: white;
  background: #1255ab;
  border-radius: 12px;
  font-weight: 650;
  text-decoration: none;
}
.button.primary { background: #1255ab; }
.button.secondary { color: var(--text); background: transparent; border: 1px solid var(--border); }
.steps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.steps article, .value-grid article { padding: 20px; border: 1px solid var(--border); border-radius: 16px; }
.steps span { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 9px; color: white; background: var(--accent); font-weight: 800; }
.steps p, .value-grid p { margin-bottom: 0; }
.value-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 22px; }
.value-grid h2 { margin-top: 0; }
footer { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--border); }
footer p { margin: 4px 0; font-size: 14px; }

@media (max-width: 620px) {
  main { margin: 16px auto; }
  .steps, .value-grid { grid-template-columns: 1fr; }
}