:root{--color-bg:#fff;--color-bg-subtle:#f7f7f8;--color-border:#e5e5e8;--color-text:#16171a;--color-text-muted:#5a5c63;--color-accent:#2563eb;--color-accent-contrast:#fff;--color-danger-bg:#fff4f2;--color-danger-border:#f2c6bd;--color-danger-text:#7a2e1c;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--radius:10px;--max-width:780px;--header-height:64px}@media (prefers-color-scheme:dark){:root{--color-bg:#0b0c0e;--color-bg-subtle:#16171a;--color-border:#2a2b2f;--color-text:#f2f2f3;--color-text-muted:#a3a4ab;--color-accent:#5b8def;--color-danger-bg:#2a1712;--color-danger-border:#5c2c1c;--color-danger-text:#f3b8a5}}*{box-sizing:border-box}html{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-text-size-adjust:100%}body{background:var(--color-bg);color:var(--color-text);flex-direction:column;min-height:100vh;margin:0;font-size:16px;line-height:1.6;display:flex;overflow-x:hidden}img,svg{max-width:100%;display:block}a{color:var(--color-accent)}.skip-link{background:var(--color-accent);color:var(--color-accent-contrast);z-index:100;border-radius:0 0 var(--radius) 0;padding:.75rem 1rem;position:absolute;top:0;left:-9999px}.skip-link:focus{left:0}.site-header{border-bottom:1px solid var(--color-border)}.site-header__inner{max-width:960px;height:var(--header-height);justify-content:space-between;align-items:center;gap:1rem;margin:0 auto;padding:0 1.5rem;display:flex}.wordmark{color:var(--color-text);letter-spacing:-.01em;font-weight:600;text-decoration:none}.site-nav{flex-wrap:wrap;gap:1.5rem;display:flex}.site-nav a{color:var(--color-text-muted);font-size:.9375rem;text-decoration:none}.site-nav a:hover,.site-nav a:focus-visible{color:var(--color-text)}.site-main{flex:1;width:100%}.container{max-width:960px;margin:0 auto;padding:3rem 1.5rem}.container--narrow{max-width:var(--max-width)}.prose h1{letter-spacing:-.02em;margin:0 0 .75rem;font-size:2rem}.prose h2{letter-spacing:-.01em;margin:2.25rem 0 .75rem;font-size:1.375rem}.prose h3{margin:1.5rem 0 .5rem;font-size:1.125rem}.prose p,.prose li{color:var(--color-text)}.prose ul,.prose ol{padding-left:1.25rem}.prose a{text-underline-offset:2px}.eyebrow{text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-muted);margin:0 0 .5rem;font-size:.8125rem;font-weight:600}.lede{color:var(--color-text-muted);max-width:60ch;font-size:1.125rem}.card{border:1px solid var(--color-border);border-radius:var(--radius);background:var(--color-bg-subtle);padding:1.5rem}.card+.card{margin-top:1rem}.card h3{margin-top:0}.grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin:1.5rem 0;display:grid}.table-scroll{border:1px solid var(--color-border);border-radius:var(--radius);margin:1.5rem 0;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:480px}th,td{text-align:left;border-bottom:1px solid var(--color-border);padding:.625rem .875rem;font-size:.9375rem}thead th{color:var(--color-text-muted);background:var(--color-bg-subtle);font-weight:600}.notice{border:1px solid var(--color-border);background:var(--color-bg-subtle);border-radius:var(--radius);margin:1.5rem 0;padding:1rem 1.25rem;font-size:.9375rem}.notice--warning{background:var(--color-danger-bg);border-color:var(--color-danger-border);color:var(--color-danger-text)}.button{border-radius:var(--radius);background:var(--color-accent);color:var(--color-accent-contrast);border:1px solid #0000;align-items:center;gap:.5rem;padding:.625rem 1.125rem;font-size:.9375rem;font-weight:600;text-decoration:none;display:inline-flex}.button--secondary{color:var(--color-text);border-color:var(--color-border);background:0 0}.youtube-api-notice{border:1px solid var(--color-border);color:var(--color-text-muted);background:var(--color-bg-subtle);border-radius:999px;align-items:center;gap:.5rem;padding:.375rem .875rem .375rem .625rem;font-size:.875rem;text-decoration:none;display:inline-flex}.youtube-api-notice__mark{color:red;font-weight:700}.site-footer{border-top:1px solid var(--color-border);margin-top:4rem}.site-footer__inner{flex-direction:column;gap:1rem;max-width:960px;margin:0 auto;padding:2rem 1.5rem;display:flex}.site-footer__row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:1.5rem;display:flex}.site-footer__links{flex-wrap:wrap;gap:1.25rem;display:flex}.site-footer__links a{color:var(--color-text-muted);font-size:.875rem;text-decoration:none}.site-footer__links a:hover,.site-footer__links a:focus-visible{color:var(--color-text)}.site-footer__note{color:var(--color-text-muted);max-width:60ch;font-size:.8125rem}@media (width<=640px){.site-header__inner{flex-wrap:wrap;height:auto;padding:1rem 1.25rem}.container{padding:2rem 1.25rem}}