:root {
  --bg: #F7F9FC; --panel: #FFFFFF; --text: #0E1B2C; --muted: #4A5A70;
  --accent: #0B5FA5; --accent-deep: #083E6E; --border: #DCE3EC; --sand: #EFE6D6;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: var(--bg); color: var(--text);
       font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
       line-height: 1.7; -webkit-font-smoothing: antialiased; }
.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }
header { background: var(--panel); border-bottom: 1px solid var(--border); }
header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; letter-spacing: .2px; }
.logo { width: 34px; height: 34px; border-radius: 50%; background: var(--accent-deep); color: #fff;
        display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 800; }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:hover { color: var(--accent); }
.hero { background: linear-gradient(160deg, var(--accent-deep), var(--accent)); color: #fff; padding: 72px 0 80px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.2; margin-bottom: 16px; max-width: 680px; }
.hero p { font-size: 18px; opacity: .92; max-width: 620px; }
.cta { display: inline-block; margin-top: 28px; background: #fff; color: var(--accent-deep); font-weight: 700;
       padding: 12px 22px; border-radius: 8px; text-decoration: none; }
section { padding: 56px 0; }
section h2 { font-size: 26px; margin-bottom: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 22px; }
.card h3 { font-size: 17px; margin-bottom: 6px; }
.card p, section p, li { color: var(--muted); font-size: 15.5px; }
.alt { background: var(--sand); }
main.doc { padding-top: 48px; padding-bottom: 72px; }
main.doc h1 { font-size: 32px; margin-bottom: 6px; }
.updated { color: var(--muted); margin-bottom: 32px; font-size: 14px; }
main.doc h2 { font-size: 20px; margin: 30px 0 10px; color: var(--accent-deep); }
strong { color: var(--text); }
ul, ol { padding-left: 22px; margin: 8px 0; }
a { color: var(--accent); }
blockquote { background: var(--panel); border: 1px solid var(--border); border-left: 3px solid var(--accent);
             border-radius: 8px; padding: 16px 20px; margin: 14px 0; color: var(--text); font-size: 15.5px; }
footer { border-top: 1px solid var(--border); background: var(--panel); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
footer a { margin-right: 14px; }
@media (max-width: 560px) { nav a { margin: 0 14px 0 0; } }