@import "https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@400;500;600;700&family=Instrument+Serif:ital@0;1&display=swap";:root{--bg:oklch(97.5% .011 62);--surface:#fff;--surface-sunken:oklch(95.5% .014 62);--surface-quiet:oklch(98.5% .008 62);--ink:oklch(24% .015 55);--ink-body:oklch(40% .018 55);--ink-intro:oklch(48% .018 55);--ink-section-intro:oklch(45% .018 55);--ink-label:oklch(60% .018 55);--ink-eyebrow:oklch(50% .018 55);--ink-faint:oklch(55% .018 55);--border:oklch(89% .016 62);--border-dashed:oklch(84% .02 62);--border-dashed-soft:oklch(86% .02 62);--accent-warm:oklch(55% .13 35);--accent-warm-deep:oklch(50% .13 35);--accent-warm-dark:oklch(44% .13 35);--accent-cool:oklch(55% .13 155);--accent-cool-deep:oklch(44% .13 155)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%;margin:0;font-family:Instrument Sans,system-ui,sans-serif}a{color:var(--accent-warm);text-underline-offset:3px;text-decoration-color:oklch(80% .06 35)}a:hover{color:var(--accent-warm-dark)}.page{max-width:940px;margin:0 auto;padding:28px 18px 80px;line-height:1.5}.header{border-bottom:1px solid var(--border);flex-direction:column;gap:14px;padding-bottom:22px;display:flex}.eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--accent-warm);font-family:ui-monospace,monospace;font-size:12px}.h1{letter-spacing:-.01em;margin:0;font-family:Instrument Serif,Georgia,serif;font-size:clamp(34px,8vw,54px);font-weight:400;line-height:1.05}.intro{max-width:52ch;color:var(--ink-intro);text-wrap:pretty;margin:0;font-size:15px}.header-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-top:4px;display:flex}.nav{flex-wrap:wrap;gap:8px;display:flex}.pill{border:1px solid var(--border);color:oklch(30% .015 55);cursor:pointer;background:#fff;border-radius:999px;padding:7px 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.12s}.exercise__link:hover{color:var(--accent-warm);border-color:var(--accent-warm)}.exercise__title-plain{font-size:16px;font-weight:600}.video-chip{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-label);border:1px dashed var(--border-dashed);white-space:nowrap;cursor:pointer;background:0 0;border-radius:999px;padding:3px 8px;font-family:ui-monospace,monospace;font-size:10px;font-weight:400;transition:border-color .12s,color .12s}.video-chip:hover{border-color:var(--accent-warm);color:var(--accent-warm)}.video-edit-btn{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-label);cursor:pointer;opacity:0;background:0 0;border:none;padding:3px 4px;font-family:ui-monospace,monospace;font-size:10px;transition:opacity .12s,color .12s}.exercise__title-row:hover .video-edit-btn{opacity:1}.video-edit-btn:hover{color:var(--accent-warm)}.video-edit-form{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.video-edit-form input{border:1px solid 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