:root { --page: #FBF3E2; --ink: #1F2A4D; --soft: #55607F; --card: #FFFFFF; --sky: #3B7BE0; }
@media (prefers-color-scheme: dark) { :root { --page: #141A31; --ink: #F6F0E3; --soft: #B6BCD2; --card: #232C4D; --sky: #7FA8F0; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink); font: 17px/1.55 ui-rounded, "SF Pro Rounded", system-ui, -apple-system, sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 40px 20px 64px; }
h1 { font-size: 2rem; line-height: 1.15; font-weight: 900; margin: 0 0 8px; }
h2 { font-size: 1.15rem; font-weight: 800; margin: 28px 0 6px; }
p, li { color: var(--soft); }
a { color: var(--sky); font-weight: 700; }
.card { background: var(--card); border-radius: 24px; padding: 24px; box-shadow: 0 6px 18px rgba(31,42,77,.12); }
nav { margin-top: 28px; display: flex; gap: 18px; flex-wrap: wrap; }
.dots { display: grid; grid-template-columns: repeat(9, 14px); gap: 6px; margin-bottom: 20px; }
.dots span { width: 14px; height: 14px; border-radius: 50%; background: rgba(127,127,160,.25); }
.dots .c { background: var(--c); }
small { color: var(--soft); }