:root {
  color-scheme: light dark;
  --text: #1d1d1f;
  --secondary: #6e6e73;
  --background: #f5f5f7;
  --card: #ffffff;
  --accent: #2f6bff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #f5f5f7;
    --secondary: #a1a1a6;
    --background: #000000;
    --card: #1c1c1e;
    --accent: #5b8cff;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

header { text-align: center; margin-bottom: 40px; }
header img { width: 128px; height: 128px; }
header h1 { font-size: 40px; letter-spacing: -0.02em; margin: 16px 0 4px; }
header p { color: var(--secondary); margin: 0; }

nav { text-align: center; margin: 0 0 40px; }
nav a { margin: 0 12px; }

section {
  background: var(--card);
  border-radius: 20px;
  padding: 28px 32px;
  margin-bottom: 24px;
}

h2 { font-size: 24px; letter-spacing: -0.01em; margin: 0 0 12px; }
h3 { font-size: 18px; margin: 24px 0 6px; }
p, li { margin: 0 0 10px; }
ul { padding-left: 22px; margin: 0 0 10px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--secondary); font-size: 15px; }

footer {
  text-align: center;
  color: var(--secondary);
  font-size: 14px;
  margin-top: 40px;
}

.wordmark { font-size: 48px; font-weight: 700; letter-spacing: -0.03em; margin: 0 0 4px; }
.apps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; margin-bottom: 24px; }
.app { background: var(--card); border-radius: 20px; padding: 28px; text-align: center; color: var(--text); }
.app:hover { text-decoration: none; transform: translateY(-2px); }
.app img { width: 96px; height: 96px; border-radius: 22px; }
.app h2 { margin: 14px 0 4px; }
.app p { color: var(--secondary); margin: 0; }