.video-block[data-astro-cid-lntsu4ih]{margin:0 0 40px;padding:0;background:var(--bg-2);border-radius:var(--r-xl);box-shadow:var(--shadow-3);overflow:hidden;isolation:isolate;scroll-margin-top:calc(var(--nav-h) + 16px)}.video-header[data-astro-cid-lntsu4ih]{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 20px;border-bottom:1px solid var(--line);font:500 .76rem/1.4 var(--font);letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3)}.video-header[data-astro-cid-lntsu4ih] span[data-astro-cid-lntsu4ih]:last-child{font:400 .74rem/1 var(--mono);letter-spacing:0;text-transform:none;padding:5px 10px;border-radius:999px;background:var(--bg-3);color:var(--ink-2);font-variant-numeric:tabular-nums}.video-frame[data-astro-cid-lntsu4ih]{aspect-ratio:16 / 9;background:var(--bg-4)}video[data-astro-cid-lntsu4ih]{display:block;width:100%;height:100%;object-fit:contain}.video-information[data-astro-cid-lntsu4ih]{padding:24px}.video-information[data-astro-cid-lntsu4ih] h2[data-astro-cid-lntsu4ih]{font:500 clamp(1.4rem,2.6vw,1.75rem)/1.22 var(--font);letter-spacing:-.024em;margin-bottom:10px}.video-information[data-astro-cid-lntsu4ih] p[data-astro-cid-lntsu4ih]{line-height:1.6;margin:0 0 16px;color:var(--ink-2)}.video-tools[data-astro-cid-lntsu4ih]{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;margin:16px 0}.video-tools[data-astro-cid-lntsu4ih] label[data-astro-cid-lntsu4ih]{display:flex;gap:10px;align-items:center;font-size:.95rem;color:var(--ink-2)}.video-tools[data-astro-cid-lntsu4ih] select[data-astro-cid-lntsu4ih]{min-height:44px;padding:8px 12px;border:1px solid var(--control-border);border-radius:var(--r-sm);background:var(--bg-2);color:var(--ink);font:400 .95rem/1.2 var(--mono)}.video-tools[data-astro-cid-lntsu4ih] a[data-astro-cid-lntsu4ih]{display:inline-flex;align-items:center;min-height:44px;font-weight:500;color:var(--accent);text-underline-offset:.2em}.video-information[data-astro-cid-lntsu4ih] .video-evidence[data-astro-cid-lntsu4ih]{font-size:.88rem;color:var(--ink-3)}.video-information[data-astro-cid-lntsu4ih] [data-astro-cid-lntsu4ih][data-video-error]{padding:14px 16px;border-radius:var(--r-sm);background:var(--warn-bg);color:var(--warn)}.chapters[data-astro-cid-lntsu4ih]{border-top:1px solid var(--line);padding:20px 0}.chapters[data-astro-cid-lntsu4ih] h3[data-astro-cid-lntsu4ih],.related-videos[data-astro-cid-lntsu4ih] h3[data-astro-cid-lntsu4ih]{font:500 .76rem/1.5 var(--font);letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);margin-bottom:12px}.chapter-list[data-astro-cid-lntsu4ih]>summary[data-astro-cid-lntsu4ih]{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;cursor:pointer;list-style:none;margin-bottom:12px}.chapter-list[data-astro-cid-lntsu4ih]>summary[data-astro-cid-lntsu4ih]::-webkit-details-marker{display:none}.chapter-list[data-astro-cid-lntsu4ih]>summary[data-astro-cid-lntsu4ih] h3[data-astro-cid-lntsu4ih]{margin:0}.chapter-list[data-astro-cid-lntsu4ih]>summary[data-astro-cid-lntsu4ih] span[data-astro-cid-lntsu4ih]{font:400 .8rem/1.4 var(--mono);color:var(--accent)}.chapter-list[data-astro-cid-lntsu4ih]>summary[data-astro-cid-lntsu4ih] span[data-astro-cid-lntsu4ih]:after{content:" · show"}.chapter-list[data-astro-cid-lntsu4ih][open]>summary[data-astro-cid-lntsu4ih] span[data-astro-cid-lntsu4ih]:after{content:" · hide"}.chapter-list[data-astro-cid-lntsu4ih]:not([open])>summary[data-astro-cid-lntsu4ih]{margin-bottom:0}.chapters[data-astro-cid-lntsu4ih] ol[data-astro-cid-lntsu4ih]{list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;padding:0;margin:0}.chapters[data-astro-cid-lntsu4ih] button[data-astro-cid-lntsu4ih]{display:flex;gap:12px;align-items:baseline;width:100%;min-height:44px;padding:11px 12px;border:0;border-radius:var(--r-sm);background:var(--bg);box-shadow:inset 0 0 0 1px var(--line);cursor:pointer;text-align:left;font:400 .94rem/1.4 var(--font);color:var(--ink);transition:box-shadow .3s,background-color .3s,transform .5s var(--spring)}.chapters[data-astro-cid-lntsu4ih] button[data-astro-cid-lntsu4ih]:hover{background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line-3)}.chapters[data-astro-cid-lntsu4ih] button[data-astro-cid-lntsu4ih]:active{transform:scale(.98)}.chapters[data-astro-cid-lntsu4ih] button[data-astro-cid-lntsu4ih] span[data-astro-cid-lntsu4ih]{font:400 .78rem/1.4 var(--mono);color:var(--ink-3);white-space:nowrap;font-variant-numeric:tabular-nums}.video-transcript[data-astro-cid-lntsu4ih]{border-top:1px solid var(--line);padding-top:8px}.video-transcript[data-astro-cid-lntsu4ih]>summary[data-astro-cid-lntsu4ih]{font-weight:500;cursor:pointer;min-height:44px;padding:10px 0}.video-transcript[data-astro-cid-lntsu4ih] section[data-astro-cid-lntsu4ih]{padding:20px 0;border-bottom:1px solid var(--line)}.video-transcript[data-astro-cid-lntsu4ih] h3[data-astro-cid-lntsu4ih]{font:500 1.1rem/1.35 var(--font);letter-spacing:-.012em;margin-bottom:10px}.video-transcript[data-astro-cid-lntsu4ih] p[data-astro-cid-lntsu4ih]{max-width:70ch;color:var(--ink)}.video-transcript[data-astro-cid-lntsu4ih] details[data-astro-cid-lntsu4ih] summary[data-astro-cid-lntsu4ih]{min-height:44px;cursor:pointer;color:var(--accent);font-weight:500}.visual-description[data-astro-cid-lntsu4ih]{white-space:pre-line;font-size:.94rem}.video-information[data-astro-cid-lntsu4ih] .video-practice-note[data-astro-cid-lntsu4ih]{padding-top:20px;font-size:.94rem;color:var(--ink-3)}.video-practice-note[data-astro-cid-lntsu4ih] a[data-astro-cid-lntsu4ih]{color:var(--accent);text-underline-offset:.2em}.related-videos[data-astro-cid-lntsu4ih]{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}.related-videos[data-astro-cid-lntsu4ih] a[data-astro-cid-lntsu4ih]{display:flex;justify-content:space-between;gap:16px;padding:12px 0;min-height:44px;border-top:1px solid var(--line);color:var(--ink);text-decoration:none;transition:color .3s var(--ease)}.related-videos[data-astro-cid-lntsu4ih] a[data-astro-cid-lntsu4ih]:hover{color:var(--accent)}.related-videos[data-astro-cid-lntsu4ih] span[data-astro-cid-lntsu4ih]{white-space:nowrap;font:400 .8rem/1.6 var(--mono);color:var(--ink-3)}.readable-captions[data-astro-cid-lntsu4ih]{padding:12px 20px;min-height:78px;background:var(--bg-4);color:var(--ink);border-top:1px solid var(--line)}.readable-captions[data-astro-cid-lntsu4ih] p[data-astro-cid-lntsu4ih]{font:400 18px/1.5 var(--font);margin:0;white-space:pre-line}[data-astro-cid-lntsu4ih][data-caption-toggle],[data-astro-cid-lntsu4ih][data-video-retry]{min-height:44px;padding:10px 14px;border:1px solid var(--control-border);border-radius:var(--r-sm);background:var(--bg-2);color:var(--ink);font:inherit;cursor:pointer}[data-astro-cid-lntsu4ih][data-video-retry]{margin-bottom:16px}.chapter-page-link[data-astro-cid-lntsu4ih]{display:inline-block;min-height:44px;padding:10px;font-size:.88rem;color:var(--accent);text-underline-offset:.2em}[data-astro-cid-lntsu4ih][hidden]{display:none!important}@media(max-width:640px){.video-block[data-astro-cid-lntsu4ih]{border-radius:var(--r-lg)}.chapters[data-astro-cid-lntsu4ih] ol[data-astro-cid-lntsu4ih]{grid-template-columns:1fr}.video-information[data-astro-cid-lntsu4ih]{padding:20px}.video-header[data-astro-cid-lntsu4ih]{padding:12px 16px}.video-tools[data-astro-cid-lntsu4ih]{gap:8px 16px}.video-frame[data-astro-cid-lntsu4ih]{min-width:0}.related-videos[data-astro-cid-lntsu4ih] a[data-astro-cid-lntsu4ih]{font-size:.94rem}}@media(prefers-reduced-motion:reduce){.chapters[data-astro-cid-lntsu4ih] button[data-astro-cid-lntsu4ih],.related-videos[data-astro-cid-lntsu4ih] a[data-astro-cid-lntsu4ih]{transition:none}}