:root { --ink: #1C1C1E; --muted: #5E6B7A; --primary: #0153A8; --paper: #F5F5F7; --card: #FFFFFF; --border: #E3E8F0; }
@media (prefers-color-scheme: dark) { :root { --ink: #F2F4F7; --muted: #A5B0BD; --primary: #7DB4F0; --paper: #111418; --card: #1B2027; --border: #2C333D; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
header img { width: 36px; height: auto; }
header a { color: var(--ink); text-decoration: none; font-size: 20px; } header b { font-weight: 700; }
h1 { font-size: 32px; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 20px; margin: 32px 0 8px; }
p, li { color: var(--ink); } .muted { color: var(--muted); font-size: 14px; }
a { color: var(--primary); }
section.card { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 20px; margin: 16px 0; }
.download { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 12px 18px; border-radius: 14px; background: var(--primary); color: var(--card); font-weight: 600; text-align: center; text-decoration: none; }
.download:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
nav.links { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: 40px; font-size: 14px; }