:root{--brand-300: #84d2c3;--brand-600: #17776d;--brand-700: #145f59;--brand-800: #144b49;--brand-950: #081f21;--bg: #f7f8fa;--surface: rgba(255,255,255,.86);--surface-strong: rgba(255,255,255,.94);--fg: #0b1f23;--muted: #4b5563;--border: rgba(229,231,235,.78);--max: 76rem;--content-max: 760px}:root.dark{--bg: #04070d;--surface: rgba(2,6,13,.82);--surface-strong: rgba(2,6,13,.92);--fg: #e6f1f0;--muted: #9ca3af;--border: rgba(31,41,55,.78)}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg);line-height:1.65;font-size:17px}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:1rem;top:1rem;background:var(--fg);color:var(--bg);padding:.5rem .75rem}.section-container{max-width:var(--max);margin:0 auto;padding:0 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