:root{--bg:#ffffff;--text:#0b0b0f;--muted:#52525b;--card-bg:#ffffff;--border:#e5e7eb;--accent:#2563eb;--pill-bg:#eef2ff;--pill-text:#1e3a8a;}@media (prefers-color-scheme:dark){:root{--bg:#0b0b0f;--text:#f5f5f5;--muted:#a1a1aa;--card-bg:#14141a;--border:#26262e;--accent:#60a5fa;--pill-bg:#1f2937;--pill-text:#e5e7eb;}}html[data-theme="light"]{--bg:#ffffff;--text:#0b0b0f;--muted:#52525b;--card-bg:#ffffff;--border:#e5e7eb;--accent:#2563eb;--pill-bg:#eef2ff;--pill-text:#1e3a8a;}html[data-theme="dark"]{--bg:#0b0b0f;--text:#f5f5f5;--muted:#a1a1aa;--card-bg:#14141a;--border:#26262e;--accent:#60a5fa;--pill-bg:#1f2937;--pill-text:#e5e7eb;}*{box-sizing:border-box;}html{scroll-behavior:smooth;}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--text);}.container{max-width:960px;padding:0 16px;margin:0 auto;}.site-header{border-bottom:1px solid var(--border);background:var(--card-bg);}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;}.brand{display:flex;align-items:center;gap:8px;}.logo{font-size:20px;}.site-title{text-decoration:none;color:var(--text);font-weight:700;}.hero{padding:24px 0;}.hero .lead{color:var(--muted);margin-top:4px;}.age-pills{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap;}.pill{display:inline-block;padding:6px 12px;border-radius:999px;background:var(--pill-bg);color:var(--pill-text);text-decoration:none;border:1px solid var(--border);}.pill:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}.ages{display:grid;gap:16px;padding-bottom:24px;}.age-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:16px;scroll-margin-top:16px;}.age-card-header{display:flex;align-items:center;justify-content:space-between;gap:12px;}h1{font-size:1.875rem;line-height:1.2;margin:0;}h2{font-size:1.25rem;line-height:1.3;margin:0 0 8px;}.summary{margin:8px 0 8px;color:var(--muted);}.examples{margin:0;padding-left:20px;}.examples li{margin:4px 0;}.faq{border-top:1px solid var(--border);padding:16px 0 32px;}.faq details{margin-top:8px;}.site-footer{border-top:1px solid var(--border);padding:16px 0;color:var(--muted);}.btn{font:inherit;cursor:pointer;border:1px solid var(--border);background:transparent;color:var(--text);padding:6px 10px;border-radius:8px;}.btn-ghost{background:transparent;}.btn-small{padding:4px 8px;font-size:0.9rem;}.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}.sr-only{position:absolute !important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}.skip-link{position:absolute;left:8px;top:-40px;background:var(--accent);color:#fff;padding:8px 12px;border-radius:6px;transition:top .2s;}.skip-link:focus{top:8px;}@media (min-width:720px){.ages{grid-template-columns:1fr 1fr;}}@media (min-width:1100px){.ages{grid-template-columns:1fr 1fr 1fr;}}