.grd{--grd-canvas:hsl(140 5% 4.5%);--grd-card:hsl(136 5% 7.5%);--grd-elevated:hsl(132 5% 10.5%);--grd-line:hsl(132 5% 13%);--grd-border:hsl(132 5% 16%);--grd-fg:hsl(90 10% 90%);--grd-fg-soft:hsl(90 6% 76%);--grd-muted:hsl(100 4% 54%);--grd-green:hsl(137 55% 52%);--grd-red:hsl(2 72% 62%);--grd-green-bg:hsl(137 45% 40%/0.1);--grd-red-bg:hsl(2 70% 50%/0.1);--grd-lime:hsl(78 70% 52%);position:fixed;inset:0;display:flex;flex-direction:column;background:var(--grd-canvas);color:var(--grd-fg);font-family:var(--font-geist),ui-sans-serif,system-ui,sans-serif;font-size:13px;line-height:1.5;-webkit-font-smoothing:antialiased;color-scheme:dark}:where(.grd) button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}.grd .grd-mono,.grd code{font-family:var(--font-geist-mono),ui-monospace,monospace}.grd-bar{display:flex;align-items:center;gap:12px;height:48px;padding:0 20px;border-bottom:1px solid var(--grd-line);flex:none}.grd-bar :where(a){color:var(--grd-muted);text-decoration:none;font-size:12px}.grd-bar :where(a):hover{color:var(--grd-fg)}.grd-bar .grd-brand{display:flex;align-items:center;gap:8px;color:var(--grd-fg);font-weight:500;font-size:13px}.grd-bar .grd-crumb,.grd-progress{color:var(--grd-muted)}.grd-progress{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:12px}.grd-meter{width:96px;height:3px;border-radius:999px;background:var(--grd-line);overflow:hidden}.grd-meter i{display:block;height:100%;background:var(--grd-lime);transition:width .18s}.grd-progress b{color:var(--grd-fg);font-weight:500}.grd-download{height:28px;padding:0 12px;display:inline-flex;align-items:center;border-radius:7px;background:var(--grd-lime);color:hsl(80 40% 8%);font-weight:500}.grd-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain}.grd-page{max-width:1180px;margin:0 auto;padding:0 32px 140px}.grd-grid{display:grid;grid-template-columns:21rem minmax(0,1fr);column-gap:48px;row-gap:32px}@media (max-width:1080px){.grd-grid{grid-template-columns:minmax(0,1fr)}.grd-chapter .grd-left{position:static}}.grd h1{margin:32px 0 0;font-size:26px;line-height:32px;font-weight:600;letter-spacing:-.02em}.grd h2,.grd h3{margin:0;font-size:17px;font-weight:600;line-height:24px;letter-spacing:-.01em}.grd-byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;color:var(--grd-muted);font-size:13px}.grd-byline .grd-sep{width:1px;height:12px;background:var(--grd-border)}.grd-prose{font-size:13.5px;line-height:22px;color:var(--grd-fg-soft);margin:0}.grd-prose code{background:hsl(132 4% 14%);border-radius:4px;padding:0 4px;font-size:12px;line-height:1;color:var(--grd-fg)}.grd-col{gap:16px;min-width:0}.grd-col,.grd-steps{display:flex;flex-direction:column}.grd-steps{list-style:none;padding:0;margin:0;gap:10px}.grd-steps li{display:grid;grid-template-columns:20px 1fr}.grd-steps .grd-n{color:var(--grd-muted);font-size:12px;line-height:22px}.grd-stat{font:11px var(--font-geist-mono),monospace;font-variant-numeric:tabular-nums;white-space:nowrap}.grd-stat .grd-a{color:var(--grd-green)}.grd-stat .grd-d{color:var(--grd-red)}.grd-card{background:var(--grd-card);border-radius:10px;box-shadow:0 0 0 1px hsl(132 5% 15%);overflow:clip;align-self:start}.grd-card-head{display:flex;align-items:center;gap:8px;height:44px;padding:0 16px;width:100%;text-align:left}.grd-card-head .grd-stat{margin-left:auto}.grd-chev{width:14px;height:14px;color:var(--grd-muted);transition:transform .14s;flex:none}.grd-closed .grd-chev{transform:rotate(-90deg)}.grd-sketch{border-top:1px solid var(--grd-line);padding:12px 0}.grd-caption{padding:0 16px 10px;color:var(--grd-muted);font-size:12px;margin:0}.grd-sl{display:flex;align-items:center;min-width:0;border-left:2px solid transparent;padding-right:12px;font:12px/26px var(--font-geist-mono),monospace}.grd-sl.grd-add{border-color:var(--grd-green);background:var(--grd-green-bg)}.grd-sl.grd-rem{border-color:var(--grd-red);background:var(--grd-red-bg)}.grd-sl .grd-sign{width:24px;text-align:center;flex:none}.grd-sl.grd-add .grd-sign{color:var(--grd-green)}.grd-sl.grd-rem .grd-sign{color:var(--grd-red)}.grd-sl .grd-code{white-space:pre;flex:none}.grd-sl.grd-rem .grd-code span{color:hsl(90 6% 62%);text-decoration:line-through;text-decoration-color:hsl(2 50% 55%/.6)}.grd-sl .grd-note{margin-left:16px;font:12px var(--font-geist),sans-serif;color:var(--grd-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.grd-tag{margin-left:auto;flex:none;height:20px;padding:0 6px;border-radius:4px;font:10px/20px var(--font-geist-mono),monospace;color:var(--grd-muted);box-shadow:0 0 0 1px var(--grd-border)}.grd-tag:hover{color:var(--grd-fg)}.grd-toc{padding:56px 0 0}.grd-toc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:16px}.grd-toc-card{position:relative;text-align:left;padding:16px;border-radius:10px;background:var(--grd-card);box-shadow:0 0 0 1px hsl(132 5% 15%);display:flex;flex-direction:column;gap:6px;transition:background .14s}.grd-toc-card:hover{background:var(--grd-elevated)}.grd-toc-card .grd-num{font:11px var(--font-geist-mono),monospace;color:var(--grd-muted)}.grd-toc-card .grd-t{font-size:13.5px;font-weight:500;line-height:20px;padding-right:20px}.grd-toc-card .grd-m{font-size:12px;color:var(--grd-muted);display:flex;gap:6px;align-items:center}.grd-ring{position:absolute;top:16px;right:16px;width:14px;height:14px;border-radius:50%;box-shadow:inset 0 0 0 1.5px var(--grd-border)}.grd-ring.grd-on{background:var(--grd-lime);box-shadow:none}.grd-chapter{padding:40px 0;border-top:1px solid var(--grd-line)}.grd-chapter:first-child{border-top:0;padding-top:24px}.grd-chapter .grd-left{position:sticky;top:24px;align-self:start}.grd-meta{display:flex;gap:12px;margin-top:6px}.grd-check,.grd-meta{align-items:center;font-size:12px;color:var(--grd-muted)}.grd-check{display:inline-flex;gap:6px;cursor:pointer;user-select:none}.grd-box{width:15px;height:15px;border-radius:4px;box-shadow:inset 0 0 0 1px var(--grd-border);background:hsl(132 4% 9%);display:grid;place-items:center;flex:none}.grd-check.grd-on .grd-box{background:var(--grd-lime);box-shadow:none}.grd-check.grd-on .grd-box:after{content:"";width:7px;height:3.5px;border-left:2px solid #0b0f08;border-bottom:2px solid #0b0f08;transform:rotate(-45deg) translate(1px,-1px)}.grd-files{list-style:none;padding:0;margin:0}.grd-file{display:flex;align-items:center;gap:8px;height:30px;padding:0 8px;margin:0 -8px;border-radius:6px;font-size:12px;width:calc(100% + 16px);text-align:left}.grd-file:hover{background:hsl(132 4% 9%)}.grd-file .grd-name{color:var(--grd-fg);flex:none}.grd-file .grd-dir{color:var(--grd-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.grd-file .grd-stat{margin-left:auto}.grd-ficon{width:14px;height:14px;border-radius:3px;background:hsl(210 60% 45%);color:white;font:600 7px/14px var(--font-geist),sans-serif;text-align:center;flex:none;text-transform:uppercase}.grd-hint{margin:0;color:var(--grd-muted);font-size:12px;line-height:20px;text-align:left}.grd-hint:hover,.grd-link:hover{color:var(--grd-fg)}.grd-actions{display:flex;align-items:center;gap:16px;padding-top:4px}.grd-btn{height:28px;padding:0 14px;border-radius:7px;background:var(--grd-card);box-shadow:0 0 0 1px hsl(132 5% 17%);font-size:12px;font-weight:500;display:inline-flex;align-items:center;gap:8px}.grd-btn:hover{background:var(--grd-elevated)}.grd-kbd{font-size:10px}.grd-kbd,.grd-link{color:var(--grd-muted)}.grd-link{font-size:12px}.grd-diffs{display:flex;flex-direction:column;gap:12px;min-width:0}.grd-diff{overflow:clip;background:hsl(136 5% 6.5%);min-height:40px;--grd-diff-bg:hsl(136 5% 6.5%);--diffs-light-bg:var(--grd-diff-bg);--diffs-dark-bg:var(--grd-diff-bg);--diffs-bg-buffer-override:var(--grd-diff-bg);--diffs-bg-context-override:var(--grd-diff-bg);--diffs-bg-context-gutter-override:hsl(136 5% 8%);--diffs-bg-separator-override:hsl(132 5% 9.5%);--diffs-added-dark:oklch(0.88 0.2 115);--diffs-deleted-dark:oklch(0.78 0.15 20);--diffs-modified-dark:oklch(0.82 0.11 82);--diffs-bg-addition-override:color-mix(in oklab,var(--diffs-added-dark) 10%,var(--grd-diff-bg));--diffs-bg-addition-emphasis-override:color-mix(in oklab,var(--diffs-added-dark) 20%,var(--grd-diff-bg));--diffs-bg-addition-number-override:color-mix(in oklab,var(--diffs-added-dark) 14%,hsl(136 5% 8%));--diffs-bg-deletion-override:color-mix(in oklab,var(--diffs-deleted-dark) 10%,var(--grd-diff-bg));--diffs-bg-deletion-emphasis-override:color-mix(in oklab,var(--diffs-deleted-dark) 20%,var(--grd-diff-bg));--diffs-bg-deletion-number-override:color-mix(in oklab,var(--diffs-deleted-dark) 14%,hsl(136 5% 8%));--diffs-selection-color-override:var(--grd-lime);--diffs-bg-selection-override:color-mix(in oklab,var(--grd-lime) 14%,transparent);--diffs-bg-selection-number-override:color-mix(in oklab,var(--grd-lime) 30%,transparent);--diffs-font-family:var(--font-geist-mono),ui-monospace,monospace;--diffs-font-size:12px;--diffs-line-height:18px}.grd-collapsed,.grd-diff{border-radius:10px;box-shadow:0 0 0 1px hsl(132 5% 14%)}.grd-collapsed{display:flex;align-items:center;gap:12px;height:40px;padding:0 14px 0 0;background:var(--grd-card);font-size:12px}.grd-collapsed:hover{background:var(--grd-elevated)}.grd-expand{display:flex;flex:1;min-width:0;align-items:center;gap:8px;height:100%;padding-left:14px;text-align:left}.grd-expand .grd-chev{transform:none}.grd-collapsed .grd-dir{color:var(--grd-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.grd-collapsed .grd-stat{margin-left:auto}.grd-sr{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.grd-check{position:relative}.grd-check:has(.grd-sr:focus-visible) .grd-box{outline:2px solid var(--grd-lime);outline-offset:2px}.grd-difflist{padding-top:24px}.grd-difflist .grd-diffs{gap:16px}.grd-note-line{font-size:12px;color:var(--grd-muted);margin:8px 0 0}.grd-dock{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);z-index:10;gap:4px;padding:5px;background:hsl(132 5% 9%/.72);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:0 0 0 1px hsl(0 0% 100%/.07),0 12px 40px hsl(0 0% 0%/.5)}.grd-dock,.grd-dock button{display:flex;border-radius:999px}.grd-dock button{align-items:center;gap:8px;height:38px;padding:0 18px;color:var(--grd-muted);font-size:13.5px;font-weight:500;transition:background .14s,color .14s}.grd-dock button:hover{color:var(--grd-fg)}.grd-dock button[aria-selected=true]{color:var(--grd-fg);background:hsl(0 0% 100%/.08);box-shadow:inset 0 0 0 1px hsl(0 0% 100%/.06)}.grd-dock svg{width:16px;height:16px}.grd-dock .grd-count{font-variant-numeric:tabular-nums;color:var(--grd-muted);font-weight:400}.grd-loading{display:grid;place-items:center;height:60vh;color:var(--grd-muted)}@media (max-width:640px){.grd-bar{padding:0 16px;white-space:nowrap}.grd-bar .grd-crumb,.grd-meter{display:none}.grd-page{padding:0 16px 120px}.grd h1{font-size:22px;line-height:28px}}.grd-comment{margin:8px 12px;padding:10px 12px;border-radius:8px;background:var(--grd-card);box-shadow:0 0 0 1px hsl(132 5% 16%);font:13px/20px var(--font-geist),ui-sans-serif,sans-serif;color:var(--grd-fg);white-space:normal}.grd-ask .grd-comment{margin:0}.grd-comment textarea{display:block;width:100%;resize:vertical;min-height:48px;border:0;outline:none;background:transparent;color:inherit;font:inherit}.grd-comment textarea::placeholder{color:var(--grd-muted)}.grd-comment p{margin:4px 0 0;color:var(--grd-fg-soft)}.grd-comment-actions{display:flex;justify-content:flex-end;gap:6px;margin-top:6px}.grd-ghost,.grd-primary{height:28px;padding:0 12px;border-radius:6px;font-size:12px;font-weight:500}.grd-ghost{color:var(--grd-muted)}.grd-ghost:hover{color:var(--grd-fg)}.grd-primary{background:var(--grd-lime);color:hsl(80 40% 8%)}.grd-primary:disabled{opacity:.4;cursor:default}.grd-comment-head{display:flex;align-items:center;gap:8px;font-size:12px}.grd-comment-head b{font-weight:500}.grd-comment-head .grd-mono{margin-left:auto;color:var(--grd-muted);font-size:11px}.grd-you{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;background:var(--grd-elevated);color:var(--grd-muted);font-size:10px}.grd-icon-btn{display:grid;place-items:center;width:22px;height:22px;border-radius:5px;color:var(--grd-muted)}.grd-icon-btn:hover{color:var(--grd-fg);background:var(--grd-elevated)}.grd-icon-btn svg{width:13px;height:13px}.grd-ask{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.grd-ask>*{align-self:stretch}.grd-ask .grd-hint{align-self:flex-start}.grd-asked{padding:10px 12px;border-radius:8px;background:hsl(132 4% 9%);font-size:12px;line-height:18px}.grd-asked p{margin:0 0 4px;color:var(--grd-fg);font-size:13px}.grd-asked-note{color:var(--grd-muted)}.grd-asked a{color:var(--grd-lime);text-decoration:none}.grd-comment-count{display:inline-flex;align-items:center;gap:5px;color:var(--grd-fg)}.grd-comment-count svg{width:13px;height:13px;color:var(--grd-muted)}.grd-author-logo{display:block;width:16px;height:16px;background:#d97757;-webkit-mask:url(/logos/claude.svg) center/contain no-repeat;mask:url(/logos/claude.svg) center/contain no-repeat}