:root {
  --orange: #FF9F43;
  --pink: #E0457B;
  --indigo: #6A4CE0;
  --bg: #FAF8F6;
  --surface: #FFFFFF;
  --text: #1C1A22;
  --muted: #5E5A68;
  --line: #E7E3EC;
  --link: #6A4CE0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121016;
    --surface: #1C1A22;
    --text: #F2F0F5;
    --muted: #A9A4B3;
    --line: #2E2B36;
    --link: #9A86F2;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); }

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 20px 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  margin-bottom: 40px;
}

.brand img { width: 44px; height: 44px; }

.brand span, .wordmark {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand span { font-size: 22px; }

.amp {
  background: linear-gradient(180deg, var(--orange), var(--pink) 50%, var(--indigo));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero { text-align: center; padding-top: 72px; }
.hero img { width: 140px; height: 140px; }
.hero .wordmark { font-size: 48px; margin: 16px 0 4px; line-height: 1.1; }
.hero .tagline { font-size: 21px; color: var(--muted); margin: 0 0 32px; }

.button {
  display: inline-block;
  background: var(--indigo);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: 999px;
}

.features {
  display: grid;
  gap: 16px;
  margin-top: 56px;
  text-align: left;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 22px;
}

.feature h2 { font-size: 18px; margin: 0 0 4px; }
.feature p { margin: 0; color: var(--muted); }

h1 { font-size: 34px; line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
.meta { color: var(--muted); font-size: 15px; margin: 0 0 24px; }
li { margin-bottom: 8px; }

footer {
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

footer p { margin: 4px 0; }
footer a { color: var(--muted); }