:root {
  color-scheme: light dark;
  --bg: #f5f5f2;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #667085;
  --line: #e5e7eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111827;
    --card: #1f2937;
    --text: #f9fafb;
    --muted: #cbd5e1;
    --line: #374151;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(760px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 34px;
  box-shadow: 0 18px 55px rgba(15, 23, 42, 0.08);
}

.logo {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin-bottom: 20px;
}

h1 {
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.05;
  margin: 0 0 18px;
}

h2 {
  font-size: 15px;
  margin: 0 0 8px;
}

p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.grid > div {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

@media (max-width: 680px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 26px;
  }
}