@font-face{font-family:Pretendard Variable;font-weight:45 920;font-style:normal;font-display:swap;src:url(/fonts/PretendardVariable.woff2) format("woff2-variations")}:root{--bg: #fefcf9;--fg: #171412;--surface: #f7f3ed;--card-bg: #17141205;--border: #e8e0d4;--border-light: #f0eae0;--muted: #a39484;--muted-dim: #c4b5a3;--accent: #92400e;--accent-light: #b45309;--accent-amber: #d97706;--accent-warm: #a16207;--radius-sm: 6px;--radius: 10px;--radius-lg: 14px;--max: 780px;--sidebar-w: 260px;--shell-max: 1220px;--header-h: 60px;--mono: ui-monospace, "Cascadia Code", "JetBrains Mono", "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace}html.dark{--bg: #0c0a09;--fg: #f5f0e8;--surface: #1c1917;--card-bg: #ffffff05;--border: #292524;--border-light: #1c1917;--muted: #78716c;--muted-dim: #57534e;--accent: #d97706;--accent-light: #e5a040;--accent-amber: #f59e0b;--accent-warm: #ca8a04}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Pretendard Variable,Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Apple SD Gothic Neo,Noto Sans KR,sans-serif;font-size:17px;line-height:1.7;font-feature-settings:"ss01","ss02";-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;letter-spacing:-.003em}::selection{background:var(--accent);color:var(--bg)}a{color:inherit;text-decoration:none;transition:color .12s ease}a:hover{color:var(--accent)}.mono{font-family:var(--mono);font-feature-settings:"tnum" 1,"ss01" 1;font-variant-numeric:tabular-nums}.shell{min-height:100vh;display:flex;flex-direction:column}.shell-inner{max-width:var(--shell-max);margin:0 auto;padding:0 24px;width:100%}.shell-grid{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);gap:44px;align-items:start;flex:1;padding-top:32px;padding-bottom:120px}.shell-grid>main{min-width:0;max-width:var(--max)}.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}.site-header-inner{max-width:var(--shell-max);margin:0 auto;padding:0 24px;height:var(--header-h);display:flex;justify-content:space-between;align-items:center;gap:20px}.site-title{display:inline-flex;align-items:baseline;gap:10px;font-size:15px;font-weight:600;letter-spacing:-.015em;color:var(--fg)}.site-title .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;transform:translateY(-2px)}.site-title:hover{color:var(--accent)}.site-nav{display:flex;align-items:center;gap:22px}.site-nav a{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.site-nav a:hover{color:var(--fg)}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;padding:0;border-radius:8px;background:transparent;color:var(--muted);border:1px solid var(--border);cursor:pointer;transition:color .12s ease,border-color .12s ease,background .12s ease}.theme-toggle:hover{color:var(--accent);border-color:var(--accent)}.theme-toggle .icon{display:block}.theme-toggle .icon-sun,html.dark .theme-toggle .icon-moon{display:none}html.dark .theme-toggle .icon-sun{display:block}.sidebar-shell{min-width:0;align-self:stretch}.sidebar{position:sticky;top:calc(var(--header-h) + 16px);max-height:calc(100vh - var(--header-h) - 32px);overflow-y:auto;overscroll-behavior:contain;padding-right:8px;font-size:13px}.sidebar::-webkit-scrollbar{width:8px}.sidebar::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.sidebar::-webkit-scrollbar-track{background:transparent}.sidebar-hamburger,.sidebar-backdrop{display:none}.sidebar-tree{display:flex;flex-direction:column;gap:2px}.channel-folder{border-radius:var(--radius-sm)}.channel-folder>summary.channel-summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:var(--radius-sm);font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);transition:background .12s ease,color .12s ease}.channel-folder>summary::-webkit-details-marker{display:none}.channel-folder>summary:hover{background:var(--surface);color:var(--fg)}.channel-folder>summary .folder-icon{display:inline-block;width:10px;font-size:10px;color:var(--muted-dim);transition:transform .15s ease}.channel-folder[open]>summary .folder-icon{transform:rotate(90deg)}.channel-folder>summary .channel-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;letter-spacing:.02em;text-transform:none;font-family:Pretendard Variable,sans-serif;font-size:13px;font-weight:600;color:var(--fg)}.channel-folder>summary .channel-name[aria-current=page]{color:var(--accent)}.channel-folder>summary .channel-count{font-variant-numeric:tabular-nums;font-size:10px;color:var(--muted-dim)}.channel-videos{list-style:none;padding:0 0 0 18px;border-left:1px solid var(--border-light);margin:2px 0 8px 13px}.channel-videos li{margin:0}.channel-videos li a{display:flex;gap:10px;padding:6px 10px;border-radius:var(--radius-sm);color:var(--muted);font-size:12.5px;line-height:1.4;transition:background .12s ease,color .12s ease}.channel-videos li a:hover{background:var(--surface);color:var(--fg)}.channel-videos li a .date{flex:0 0 auto;font-family:var(--mono);font-size:10px;color:var(--muted-dim);font-variant-numeric:tabular-nums;padding-top:2px}.channel-videos li a .title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.channel-videos li.active a,.channel-videos li a[aria-current=page]{background:color-mix(in srgb,var(--accent) 12%,transparent);color:var(--accent);font-weight:600}html.dark .channel-videos li.active a,html.dark .channel-videos li a[aria-current=page]{background:color-mix(in srgb,var(--accent) 18%,transparent)}.sidebar-empty{color:var(--muted);font-size:12px;padding:12px 10px}.site-footer{border-top:1px solid var(--border);padding:28px 0;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.site-footer-inner{max-width:var(--shell-max);margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}.page-hero{margin:0 0 44px}.page-hero .eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}.page-hero h1{font-size:32px;line-height:1.2;letter-spacing:-.025em;font-weight:700;margin:0 0 8px}.page-hero .subtitle{font-size:15px;color:var(--muted);margin:0}.intro{font-size:15px;color:var(--muted);margin:0 0 28px}.channel-filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 36px;padding:16px 0;border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light)}.channel-pill{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;font-size:13px;color:var(--fg);border:1px solid var(--border);border-radius:999px;background:var(--bg);transition:all .12s ease}.channel-pill:hover{border-color:var(--accent);color:var(--accent)}.channel-pill .count{font-family:var(--mono);font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}.channel-pill:hover .count{color:var(--accent-light)}.video-list{display:flex;flex-direction:column;border-top:1px solid var(--border-light)}.video-row{display:block;padding:22px 4px;border-bottom:1px solid var(--border-light);color:var(--fg);position:relative;transition:padding-left .16s ease}.video-row:hover{color:var(--fg);padding-left:14px}.video-row:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:0;background:var(--accent);transition:height .2s ease}.video-row:hover:before{height:70%}.video-row .kicker{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 10px;font-variant-numeric:tabular-nums}.video-row .kicker .channel{color:var(--accent);letter-spacing:.04em;text-transform:none;font-weight:500}.video-row .kicker .sep{color:var(--muted-dim)}.video-row h2{margin:0 0 10px;font-size:21px;line-height:1.4;letter-spacing:-.018em;font-weight:600}.video-row:hover h2{color:var(--accent)}.video-row .tags{display:flex;gap:6px;flex-wrap:wrap}.tag{display:inline-block;padding:2px 9px;font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px solid var(--border);border-radius:4px;background:var(--card-bg)}.video-row:hover .tag{border-color:var(--accent);color:var(--accent)}.empty{padding:48px 0;text-align:center;color:var(--muted);font-size:14px}article.video-page{max-width:100%}article.video-page .back-link{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:inline-block;margin:0 0 24px}article.video-page .back-link:hover{color:var(--accent)}article.video-page .channel-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin:0 0 14px}article.video-page h1{font-size:34px;line-height:1.25;letter-spacing:-.028em;font-weight:700;margin:0 0 20px}article.video-page .meta-strip{display:flex;flex-wrap:wrap;gap:10px 16px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 24px;padding:14px 0;border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light);font-variant-numeric:tabular-nums}article.video-page .meta-strip .sep{color:var(--muted-dim)}article.video-page .yt-link{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding:10px 16px;background:var(--fg);color:var(--bg);border-radius:var(--radius-sm);margin:0 0 36px;transition:background .12s ease}article.video-page .yt-link:hover{background:var(--accent);color:var(--bg)}details.section{margin:12px 0;border-top:1px solid var(--border)}details.section:last-of-type{border-bottom:1px solid var(--border)}details.section summary{cursor:pointer;padding:18px 0;list-style:none;display:flex;justify-content:space-between;align-items:center;user-select:none;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);transition:color .12s ease}details.section summary:hover{color:var(--fg)}details.section summary::-webkit-details-marker{display:none}details.section summary .label{display:flex;align-items:center;gap:12px}details.section summary .label .num{color:var(--accent);font-weight:500}details.section summary:after{content:"+";font-family:var(--mono);font-size:18px;color:var(--muted);line-height:1}details.section[open] summary:after{content:"−";color:var(--accent)}details.section[open] summary{color:var(--fg)}details.section .body{padding:8px 0 32px}.body{font-size:16.5px;line-height:1.78}.body>:first-child{margin-top:0}.body>:last-child{margin-bottom:0}.body h1,.body h2,.body h3{letter-spacing:-.015em;line-height:1.35;font-weight:700;margin-top:1.8em}.body h1{font-size:22px}.body h2{font-size:19px}.body h3{font-size:17px}.body h1:first-child,.body h2:first-child{margin-top:.4em}.body p{margin:.9em 0}.body strong{color:var(--fg);font-weight:700}.body a{color:var(--accent);border-bottom:1px solid color-mix(in srgb,var(--accent) 30%,transparent);transition:border-color .12s}.body a:hover{border-color:var(--accent)}.body blockquote{margin:1.2em 0;border-left:2px solid var(--accent);color:var(--muted);font-style:normal;background:var(--surface);padding:12px 18px;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.body blockquote p{margin:.4em 0}.body code:not(pre code){padding:2px 6px;background:var(--surface);border:1px solid var(--border-light);border-radius:4px;font-family:var(--mono);font-size:.88em;color:var(--accent-warm)}.body pre{padding:18px 20px;border-radius:var(--radius);overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:1.65;border:1px solid var(--border)}.body ul,.body ol{padding-left:1.4em}.body li{margin:.3em 0}.body table{width:100%;border-collapse:collapse;font-size:14px;margin:1.2em 0}.body th,.body td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border-light)}.body th{color:var(--muted);font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;font-weight:500}.body hr{border:0;border-top:1px solid var(--border);margin:2.5em 0}.body h2 a,.body h3 a,.body h1 a{color:inherit;border-bottom:0}.body h2 a:hover,.body h3 a:hover,.body h1 a:hover{color:var(--accent)}pre.plain{white-space:pre-wrap;word-wrap:break-word;font-family:var(--mono);font-size:13px;line-height:1.75;color:var(--muted);padding:18px 20px;background:var(--surface);border:1px solid var(--border-light);border-radius:var(--radius)}form.submit-form{display:grid;gap:20px;max-width:560px;margin:32px 0 0}form.submit-form .field label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:8px}form.submit-form input{width:100%;padding:12px 16px;font:inherit;font-size:15px;color:var(--fg);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);transition:border-color .12s}form.submit-form input:focus{outline:none;border-color:var(--accent)}form.submit-form button{padding:14px 24px;font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:600;background:var(--fg);color:var(--bg);border:0;border-radius:var(--radius-sm);cursor:pointer;transition:background .12s;justify-self:start}form.submit-form button:hover{background:var(--accent)}form.submit-form button:disabled{opacity:.45;cursor:not-allowed}.submit-result{padding:14px 18px;border-radius:var(--radius-sm);font-size:14px;border:1px solid var(--border)}.submit-result.ok{background:var(--surface);border-color:var(--accent);color:var(--accent)}.submit-result.err{background:var(--surface);border-color:#b91c1c;color:#b91c1c}html.dark .submit-result.err{color:#fca5a5;border-color:#7f1d1d}@media(max-width:900px){.shell-grid{grid-template-columns:minmax(0,1fr);gap:0;padding-top:20px;padding-bottom:80px}.shell-grid>main{max-width:none}.sidebar-shell{display:contents}.sidebar-hamburger{display:inline-flex;position:fixed;top:13px;left:14px;z-index:30;width:34px;height:34px;align-items:center;justify-content:center;padding:0;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--fg);cursor:pointer;transition:color .12s,border-color .12s}.sidebar-hamburger:hover{color:var(--accent);border-color:var(--accent)}.site-header-inner{padding-left:60px}.sidebar{position:fixed;top:0;left:0;bottom:0;width:288px;max-width:85vw;padding:64px 14px 24px;background:var(--bg);border-right:1px solid var(--border);box-shadow:2px 0 24px #0000001f;max-height:none;overflow-y:auto;overflow-x:hidden;z-index:29;transform:translate(-100%);transition:transform .22s ease}.sidebar[data-open=true]{transform:translate(0)}.sidebar-backdrop{display:block;position:fixed;inset:0;background:#0000006b;opacity:0;pointer-events:none;transition:opacity .22s ease;z-index:28}.sidebar-backdrop[data-visible=true]{opacity:1;pointer-events:auto}html.dark .sidebar-backdrop{background:#0009}}@media(max-width:560px){:root{--max: 100%}.shell-inner,.site-header-inner,.site-footer-inner{padding:0 18px}.shell-grid{padding-top:16px;padding-bottom:60px}.page-hero h1{font-size:26px}article.video-page h1{font-size:26px}.video-row h2{font-size:18px}.site-nav{gap:14px}}.astro-route-announcer{position:absolute;left:0;top:0;clip:rect(0 0 0 0);clip-path:inset(50%);overflow:hidden;white-space:nowrap;width:1px;height:1px}@keyframes astroFadeInOut{0%{opacity:1}to{opacity:0}}@keyframes astroFadeIn{0%{opacity:0;mix-blend-mode:plus-lighter}to{opacity:1;mix-blend-mode:plus-lighter}}@keyframes astroFadeOut{0%{opacity:1;mix-blend-mode:plus-lighter}to{opacity:0;mix-blend-mode:plus-lighter}}@keyframes astroSlideFromRight{0%{transform:translate(100%)}}@keyframes astroSlideFromLeft{0%{transform:translate(-100%)}}@keyframes astroSlideToRight{to{transform:translate(100%)}}@keyframes astroSlideToLeft{to{transform:translate(-100%)}}@media(prefers-reduced-motion){::view-transition-group(*),::view-transition-old(*),::view-transition-new(*){animation:none!important}[data-astro-transition-scope]{animation:none!important}}
