/* Calm & airy, matching the app's tokens (ThinkingTime/DesignSystem/Theme.swift). */
:root { --ground: #F4F5F2; --surface: #FFFFFF; --ink: #1E2A2E; --ink2: #55636A; --accent-text: #2C535A; --line: #E2E5E1; }
@media (prefers-color-scheme: dark) {
  :root { --ground: #121517; --surface: #1C2023; --ink: #E8ECEA; --ink2: #A6B1B5; --accent-text: #8DC4CD; --line: #2B3134; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
h1 { font: 600 2rem/1.2 ui-rounded, -apple-system, "SF Pro Rounded", sans-serif; margin: 0 0 8px; }
h2 { font: 600 1.15rem/1.3 -apple-system, sans-serif; margin: 28px 0 6px; }
p, li { color: var(--ink); }
.muted { color: var(--ink2); font-size: 0.95rem; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 18px 20px; margin: 20px 0; }
a { color: var(--accent-text); }
footer { margin-top: 48px; color: var(--ink2); font-size: 0.9rem; }