:root {
  color-scheme: light dark;
  --bg: #f7f7f4;
  --text: #181a1f;
  --muted: #5d6673;
  --panel: #ffffff;
  --line: #d9ddd8;
  --accent: #1f6b62;
  --accent-strong: #14544d;
  --soft: #e8f1ee;
  --shadow: 0 18px 45px rgba(30, 37, 43, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101418;
    --text: #f3f5f3;
    --muted: #a7b0b7;
    --panel: #171d22;
    --line: #2d363b;
    --accent: #68c3b5;
    --accent-strong: #93ddd2;
    --soft: #172723;
    --shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
  }
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

.site-header,
.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 0;
}

.brand {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: 0;
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px 20px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover {
  color: var(--accent-strong);
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 64px 0 52px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 5.2rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lede {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--panel);
  font-weight: 650;
  text-decoration: none;
}

.button.primary {
  border-color: transparent;
  color: #ffffff;
  background: var(--accent);
}

.section {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 18px;
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card,
.notice {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.card {
  padding: 22px;
}

.card h2,
.card h3 {
  margin: 0 0 10px;
}

.card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.feature-list,
.plain-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.feature-list strong,
.plain-list strong {
  color: var(--text);
}

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

.screenshot {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.screenshot img {
  aspect-ratio: 16 / 10;
  width: 100%;
  object-fit: cover;
}

.screenshot figcaption {
  padding: 12px 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.notice {
  padding: 18px;
  color: var(--muted);
  background: var(--soft);
  box-shadow: none;
}

.copy-block {
  max-width: 820px;
}

.copy-block p,
.copy-block li {
  color: var(--muted);
}

.copy-block h2 {
  margin-top: 34px;
}

.site-footer {
  padding: 34px 0 48px;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 42px;
  }

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