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72px}.container.narrow{max-width:820px}.nav{position:sticky;top:0;z-index:40;background:var(--nav-bg);box-shadow:var(--nav-shadow)}.nav-inner{max-width:1240px;height:76px;margin:0 auto;display:flex;align-items:center;gap:24px;padding:0 20px}.brand{display:flex;align-items:center;flex:none}.brand-logo{display:block;height:58px;width:auto}.brand-icon{display:none;height:44px;width:auto}.nav-links{display:flex;align-self:stretch;gap:8px;margin:0 auto}.nav-link{position:relative;display:inline-flex;align-items:center;padding:0 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h2,.markdown h3{color:var(--ink);font-weight:700;line-height:1.25;margin:1.8em 0 .6em}.markdown h1{font-size:1.875rem}.markdown h2{font-size:1.5rem}.markdown h3{font-size:1.25rem}.markdown a{color:var(--primary);text-decoration:underline}.markdown a:hover{color:var(--primary-ink)}.markdown code{background:var(--code-bg);border-radius:var(--radius);padding:.1em .3em;font-size:.875em}.markdown pre{background:#08090a;color:#f8f8f2;padding:16px 20px;border-radius:.375rem;overflow-x:auto;font-size:.9rem;line-height:1.6}.markdown pre code{background:none;padding:0;color:inherit;font-size:inherit}.markdown blockquote{margin:1.2em 0;padding:0 0 0 16px;border-left:4px solid var(--border-strong);color:var(--ink-soft)}.markdown table{width:100%;border-collapse:collapse;font-size:.95rem}.markdown th,.markdown td{border:1px solid var(--border-strong);padding:8px 10px;text-align:left}.table-scroll{overflow-x:auto}.markdown 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li{display:flex;align-items:center;gap:12px;background:var(--card);box-shadow:var(--shadow-card);border-radius:var(--radius);padding:14px 16px;font-size:1rem;font-weight:500;color:var(--ink)}.lesson-list li a:hover{box-shadow:var(--shadow-hover);color:var(--primary-ink)}.lesson-index{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:var(--neutral-bg);color:var(--ink);font-size:.8rem;font-weight:700;flex:none}.admin-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.admin-list li a{flex:1;font-weight:500}.admin-list li a:hover{color:var(--primary-ink)}.video-wrapper{position:relative;padding-bottom:56.25%;height:0;margin-bottom:22px;border-radius:var(--radius);overflow:hidden;background:#000}.video-wrapper iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:none}.cover{display:block;width:calc(100% + 96px);max-width:none;aspect-ratio:1000 / 420;margin:-32px -48px 24px;object-fit:cover;border-radius:var(--radius) var(--radius) 0 0}.cover-preview{max-width:220px;border-radius:var(--radius);margin-top:6px}.feed{max-width:680px;margin:0 auto}.feed-intro h1{margin:0 0 4px;font-size:1.875rem;font-weight:800;line-height:1.25}.stories{display:flex;gap:2px;overflow-x:auto;padding:2px;margin:12px 0 10px;scrollbar-width:none}.stories::-webkit-scrollbar{display:none}.story{flex:none;display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border:none;border-radius:var(--radius);background:none;font:inherit;color:var(--ink-soft);cursor:pointer;white-space:nowrap}.story:hover{background:var(--primary-soft);color:var(--primary-ink)}.story.active{background:var(--card);color:var(--ink);font-weight:700;box-shadow:var(--shadow-card)}.story-ring{display:contents}.story-face{font-size:1rem;line-height:1}.story-label{font-size:1rem}.feed-search{width:100%;margin-bottom:8px}.feed-topics{margin-bottom:12px}.feed-post{background:var(--card);box-shadow:var(--shadow-card);border-radius:var(--radius);overflow:hidden;margin-bottom:8px}.feed-cover-image{display:block;width:100%;max-width:100%;aspect-ratio:1000 / 420;background:var(--neutral-bg)}.feed-cover-image img{display:block;width:100%;height:100%;object-fit:cover}.feed-body{padding:20px 20px 12px}.feed-head{display:flex;align-items:center;gap:8px}.feed-avatar{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--muted);color:#fff;font-size:.72rem;font-weight:700;flex:none}.feed-who{min-width:0;display:flex;flex-direction:column;line-height:1.25}.feed-author{display:flex;align-items:center;gap:4px;font-size:.875rem;white-space:nowrap}.feed-name{font-weight:500;color:var(--ink)}.feed-date{font-size:.75rem;color:var(--muted)}.feed-indent{padding-left:40px;margin-top:10px}.feed-title{margin:8px 0 4px;font-size:1.5rem;font-weight:700;line-height:1.25;color:var(--ink);overflow-wrap:anywhere}.feed-title a:hover{color:var(--primary-ink)}.feed-summary{margin:0 0 6px;color:var(--ink-soft);font-size:1rem}.feed-tags{display:flex;flex-wrap:wrap;gap:1px;margin:0 0 8px -4px;font-size:.875rem}.feed-tag{display:inline-flex;align-items:center;padding:4px 7px;border:none;border-radius:var(--radius);background:transparent;font:inherit;color:var(--ink-soft);cursor:pointer;transition:all .1s cubic-bezier(.17,.67,.5,.71)}.feed-tag:hover{background:var(--hover-bg);color:var(--ink);box-shadow:inset 0 0 0 1px var(--hover-bg)}.feed-tag-hash{color:var(--muted)}.feed-tag:hover .feed-tag-hash{color:var(--ink)}.feed-actions{display:flex;align-items:center;flex-wrap:wrap;gap:2px;margin-left:-8px;font-size:.875rem}.feed-action{display:inline-flex;align-items:center;gap:6px;padding:6px 8px;border:none;border-radius:var(--radius);background:transparent;font:inherit;color:var(--ink-soft);cursor:pointer}.feed-action:hover{background:var(--hover-bg);color:var(--ink)}.feed-action svg,.feed-save svg{width:20px;height:20px;flex:none}.feed-action.like.on{color:var(--danger)}.feed-action.like.on svg{animation:feed-pop .35s ease}.feed-spacer{flex:1}.feed-readtime{font-size:.75rem;color:var(--muted);margin-right:8px}.feed-save{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border:1px solid transparent;border-radius:var(--radius);background:var(--save-bg);font:inherit;font-size:.875rem;font-weight:500;color:var(--save-ink);cursor:pointer;transition:all .1s cubic-bezier(.17,.67,.5,.71)}.feed-save svg{width:16px;height:16px}.feed-save:hover{background:var(--save-hover-bg);color:var(--save-ink)}.feed-save.on{background:var(--primary);color:var(--on-primary)}.feed-save.on:hover{background:var(--primary-hover)}.feed-sentinel{height:1px}.feed-end{display:flex;flex-direction:column;align-items:center;gap:4px;padding:20px 0 8px;color:var(--muted);font-size:.875rem}.feed-end strong{color:var(--ink);font-size:1rem}.feed-end-check{display:grid;place-items:center;width:40px;height:40px;margin-bottom:4px;border-radius:50%;background:var(--neutral-bg);color:var(--ink);font-weight:700}.sk{display:block;background:linear-gradient(90deg,var(--neutral-bg) 25%,var(--card-secondary) 50%,var(--neutral-bg) 75%);background-size:200% 100%;animation:feed-shimmer 1.2s linear infinite}.sk-avatar{width:32px;height:32px;border-radius:50%}.sk-line{width:30%;height:12px;border-radius:var(--radius)}.sk-title{width:80%;height:24px;margin:16px 0 10px 40px;border-radius:var(--radius)}.sk-text{width:55%;height:14px;margin:0 0 8px 40px;border-radius:var(--radius)}@keyframes feed-pop{0%,to{transform:scale(1)}45%{transform:scale(1.25)}}@keyframes feed-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (prefers-reduced-motion: reduce){.feed-action.like.on svg,.sk{animation:none}.button,.feed-tag,.feed-save{transition:none}}@media (max-width: 1180px){.nav-inner{gap:16px}.nav-link{padding:0 10px}.nav-search{width:200px}}@media (max-width: 1439px){.hero-inner{height:370px;padding-left:40px}.hero-copy{max-width:470px}.hero-wordmark{max-width:400px}.hero-hey{font-size:2.1rem}}@media (max-width: 1240px){.hero-inner{height:auto;padding:40px 20px 24px 64px}.hero-art,:root[data-theme=dark] .hero-art{position:static;display:block;width:100%;height:auto;aspect-ratio:1000 / 520;object-fit:cover;object-position:right center;transform:none}:root[data-theme=dark] .hero-art{width:calc(100% - 40px);margin:0 20px 28px}}@media (max-width: 900px){.library{grid-template-columns:1fr;gap:16px}.library-nav{position:static;max-height:none}.footer-inner{grid-template-columns:1fr 1fr;gap:28px}}@media (max-width: 960px){.nav-links,.nav-actions>.nav-search{display:none}.nav-actions{margin-left:auto}.hamburger{display:grid}.mobile-drawer{display:block}}@media (max-width: 620px){.container{padding:16px 16px 48px}.nav-inner{height:64px;padding:0 8px 0 12px;gap:8px}.brand-logo{height:46px}.mobile-drawer{top:64px}.card-grid{grid-template-columns:1fr;gap:8px}.feed-body{padding:16px 16px 10px}.feed-indent{padding-left:0}.feed-title{font-size:1.25rem}.feed-action{position:relative;padding:8px}.feed-action span{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.sk-title,.sk-text{margin-left:0}.hero-inner{padding:28px 16px 20px}.hero-rays-left{display:none}.hero-hey{margin-left:8px;font-size:2rem}.hero-rays-top{left:152px;top:-12px}.hero-lede{font-size:1rem}:root[data-theme=dark] .hero-art{width:calc(100% - 32px);margin:0 16px 20px;border-radius:14px}.about{padding:24px 16px}.about h1{font-size:1.75rem}.form{padding:20px 16px}.article-head{padding:20px 16px 4px}.markdown{padding:16px 16px 28px;font-size:1.0625rem}.cover{width:calc(100% + 32px);margin:-20px -16px 18px}.article-head h1{font-size:1.875rem}.markdown table{display:block;overflow-x:auto;white-space:nowrap}.form-row{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr;gap:24px;padding:32px 16px 24px}}@media (max-width: 380px){.brand-logo{display:none}.brand-icon{display:block}}