:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  --bg: #f5f5f7;
  --surface: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: #e5e5ea;
  --accent: #0071e3;
  --accent-pressed: #005cbf;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0 0;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.site-brand img {
  width: 22px;
  height: 22px;
}

.site-nav nav {
  display: flex;
  gap: 8px;
}

.site-nav nav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.site-nav nav a.is-active,
.site-nav nav a:hover {
  background: #fff;
  color: var(--text);
}

.hero,
.cards,
.note {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  padding: 36px 0 18px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.04em;
}

.hero p {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 10px 0 28px;
}

.card {
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-decoration: none;
}

.card strong {
  font-size: 20px;
  letter-spacing: -0.03em;
}

.card span {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.card em {
  color: var(--accent);
  font-size: 13px;
  font-style: normal;
  font-weight: 600;
}

.note,
.site-footer {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 8px 0 32px;
}

.compare-image {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.compare-image img,
.compare-image canvas {
  display: block;
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  background: #111;
}

.compare-image[hidden] {
  display: none !important;
}

@media (max-width: 800px) {
  .cards,
  .compare-image {
    grid-template-columns: 1fr;
  }
}