:root{--bg:#faf9f6;--bg2:#f3f1ec;--fg:#16150f;--fg2:#55514a;--fg3:#8a8579;--line:#e6e2d9;--line2:#d5d0c4;--hover:#edeae2;--green:oklch(46% .11 150);--green-bg:oklch(46% .11 150/.12);--amber:oklch(50% .12 65);--amber-bg:oklch(50% .12 65/.14);--blue:oklch(48% .12 250);--blue-bg:oklch(48% .12 250/.1);--violet:oklch(48% .12 300);--violet-bg:oklch(48% .12 300/.1);--red:oklch(50% .15 25);--red-bg:oklch(50% .15 25/.1);--shadow:0 12px 40px #14120a1f;--diff-add-bg:oklch(92% .06 150);--diff-add-mark:oklch(84% .1 150);--diff-del-bg:oklch(93% .05 25);--diff-del-mark:oklch(85% .09 25);--diff-ctx-bg:var(--bg);--font-sans:ui-sans-serif, -apple-system, "Segoe UI", system-ui, sans-serif;--font-serif:ui-serif, "New York", Georgia, serif;--font-mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace}html.dark{--bg:#14130f;--bg2:#1b1a16;--fg:#edeae2;--fg2:#aaa597;--fg3:#78736a;--line:#2a2823;--line2:#3a3730;--hover:#23211c;--green:oklch(80% .11 150);--green-bg:oklch(80% .11 150/.14);--amber:oklch(82% .12 70);--amber-bg:oklch(82% .12 70/.14);--blue:oklch(80% .1 250);--blue-bg:oklch(80% .1 250/.14);--violet:oklch(80% .1 300);--violet-bg:oklch(80% .1 300/.14);--red:oklch(78% .13 25);--red-bg:oklch(78% .13 25/.14);--shadow:0 12px 40px #00000080;--diff-add-bg:oklch(30% .06 150);--diff-add-mark:oklch(40% .1 150);--diff-del-bg:oklch(30% .06 25);--diff-del-mark:oklch(42% .1 25)}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;margin:0;font-size:15px;line-height:1.55}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}[x-cloak]{display:none!important}input,select,button,textarea{font:inherit;color:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--line2);border-radius:8px}.shell{min-height:100vh}.shell__bar{border-bottom:1px solid var(--line);background:var(--bg);align-items:center;gap:16px;padding:12px 24px;display:flex}.shell__brand{color:var(--fg);letter-spacing:-.01em;font-weight:600}.shell__brand:hover{text-decoration:none}.shell__logout{margin-left:auto}.shell__crumb{color:var(--fg2);font-size:14px}.viewer{grid-template-columns:280px minmax(0,1fr);gap:40px;padding:28px 32px 48px;display:grid}@media (width<=960px){.viewer{grid-template-columns:minmax(0,1fr);gap:24px;padding:20px 16px 40px}}.viewer__nav{align-self:start;max-height:calc(100vh - 48px);position:sticky;top:24px;overflow-y:auto}@media (width<=960px){.viewer__nav{border-bottom:1px solid var(--line);max-height:240px;padding-bottom:12px;position:static}}.viewer__main{min-width:0}.badge{background:var(--hover);color:var(--fg2);white-space:nowrap;border-radius:999px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.badge--green{background:var(--green-bg);color:var(--green)}.badge--amber{background:var(--amber-bg);color:var(--amber)}.badge--blue{background:var(--blue-bg);color:var(--blue)}.badge--violet{background:var(--violet-bg);color:var(--violet)}.badge--red{background:var(--red-bg);color:var(--red)}.beat{margin-bottom:28px}.btn{border:1px solid var(--line2);cursor:pointer;background:0 0;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:8px 14px;font-weight:500;display:inline-flex}.btn:hover{background:var(--hover)}.btn:focus-visible{outline:2px solid var(--blue);outline-offset:1px}.btn:disabled{opacity:.4;cursor:default;pointer-events:none}.btn--primary{border-color:var(--fg);background:var(--fg);color:var(--bg)}.btn--primary:hover{border-color:var(--fg2);background:var(--fg2)}.btn--link{color:var(--blue);font-family:var(--font-sans);background:0 0;border:0;padding:0;font-size:13px;font-weight:400}.btn--link:hover{background:0 0;text-decoration:underline}.btn--small{padding:4px 10px;font-size:13px}.callout{background:var(--violet-bg);border-radius:8px;margin:20px 0;padding:14px 18px}.callout__title{color:var(--violet);margin:0 0 6px;font-size:15px;font-weight:600}.callout__source{color:var(--fg2);margin:10px 0 0;font-size:13px}.checkbox{cursor:pointer;align-items:center;gap:8px;display:inline-flex}.checkbox__box{accent-color:var(--fg)}.checkbox__label{color:var(--fg2);font-size:14px}.diagram{border:1px solid var(--line2);background:var(--bg);border-radius:8px;margin:0;padding:16px;overflow-x:auto}.diagram__canvas{flex-direction:column;align-items:center;display:flex}.diagram__drawing{width:100%}.diagram__drawing svg{max-width:100%;height:auto;margin:0 auto;display:block}.diagram__source{color:var(--fg2);font-family:var(--font-mono);margin:0;font-size:12.5px}.diagram__caption{color:var(--fg2);text-align:center;margin-top:10px;font-size:13px}.diff{border:1px solid var(--line2);background:var(--bg);border-radius:8px;margin:0 0 20px;overflow:hidden}.diff--flush{margin:0}.diff__noted-row>td:first-child{box-shadow:inset 3px 0 0 var(--blue)}.diff__noted-row:hover>td{background-image:linear-gradient(var(--blue-bg), var(--blue-bg));cursor:help}.diff__head{border-bottom:1px solid var(--line2);background:var(--bg2);flex-wrap:wrap;align-items:center;gap:8px;padding:10px 14px;display:flex}.diff__file{overflow-wrap:anywhere;flex:1;min-width:0;font-size:13px;font-weight:500}.diff__note{border-bottom:1px solid var(--line);color:var(--fg2);margin:0;padding:10px 14px;font-size:14px}.diff__intro{border-bottom:1px solid var(--line);padding:12px 14px;font-size:15px}.diff__expand{margin-right:12px}.diff__more{border-top:1px solid var(--line);background:var(--bg2);padding:6px 14px}.diff__body{--d2h-bg-color:var(--bg);--d2h-border-color:var(--line);--d2h-dim-color:var(--fg3);--d2h-line-border-color:var(--line);--d2h-empty-placeholder-bg-color:var(--bg2);--d2h-empty-placeholder-border-color:var(--line);--d2h-selected-color:var(--blue-bg);--d2h-ins-bg-color:var(--diff-add-bg);--d2h-ins-border-color:var(--diff-add-bg);--d2h-ins-highlight-bg-color:var(--diff-add-mark);--d2h-ins-label-color:var(--green);--d2h-del-bg-color:var(--diff-del-bg);--d2h-del-border-color:var(--diff-del-bg);--d2h-del-highlight-bg-color:var(--diff-del-mark);--d2h-del-label-color:var(--red);--d2h-change-del-color:var(--diff-del-bg);--d2h-change-ins-color:var(--diff-add-bg);--d2h-info-bg-color:var(--bg2);--d2h-info-border-color:var(--line);--d2h-file-header-bg-color:var(--bg2);--d2h-file-header-border-color:var(--line);color:var(--fg);font-size:13px;overflow-x:auto}.diff__body .d2h-file-header{display:none}.diff__body .d2h-wrapper,.diff__body .d2h-file-wrapper{border:0;border-radius:0;margin:0}.diff__body .d2h-code-line,.diff__body .d2h-code-side-line,.diff__body .d2h-code-linenumber,.diff__body .d2h-code-side-linenumber,.diff__body .d2h-info{color:var(--fg);font-family:var(--font-mono)}.diff__body .d2h-code-linenumber,.diff__body .d2h-code-side-linenumber{color:var(--fg3);background:inherit}.diff__body .d2h-code-line-ctn{color:var(--fg)}.diff__body .d2h-file-side-diff{overflow-x:auto}.diff__body del,.diff__body ins{color:inherit;text-decoration:none}.field{flex-direction:column;gap:6px;display:flex}.field__label{color:var(--fg2);font-size:12px;font-weight:500}.field__error{color:var(--red);font-size:12px}.files{border:1px solid var(--line2);border-radius:8px;margin:0;padding:0;list-style:none;overflow:hidden}.files__item{flex-wrap:wrap;align-items:center;gap:6px 12px;padding:10px 14px;display:flex}.files__item+.files__item{border-top:1px solid var(--line)}.files__path{overflow-wrap:anywhere;flex:280px;min-width:0;font-size:13px}.files__lines{font-size:12.5px}.files__added{color:var(--green)}.files__removed{color:var(--red)}.files__steps{flex-wrap:wrap;flex-basis:100%;gap:4px 10px;display:flex}.fold{border:1px solid var(--line2);border-radius:8px;margin:16px 0}.fold__summary{cursor:pointer;padding:10px 14px;font-weight:500}.fold__summary:hover{background:var(--hover)}.fold[open] .fold__summary{border-bottom:1px solid var(--line)}.fold__body{padding:14px 16px}.input{border:1px solid var(--line2);background:var(--bg);width:100%;color:var(--fg);border-radius:6px;padding:9px 12px}.input::placeholder{color:var(--fg3)}.input:focus-visible{outline:2px solid var(--blue);outline-offset:1px}.input--invalid{border-color:var(--red)}.list{margin:0;padding-left:20px}.list li+li{margin-top:8px}.note-overlay{z-index:20;border:1px solid var(--line2);background:var(--bg);width:min(640px,100vw - 32px);box-shadow:var(--shadow);pointer-events:none;border-radius:10px;padding:12px 16px;font-size:15px;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.note-overlay__line{color:var(--fg3);margin-bottom:4px;font-size:12px;display:block}.pane{border:1px solid var(--line2);background:var(--bg2);border-radius:10px;padding:18px 20px}.pane__title{color:var(--fg2);letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px;font-size:12px;font-weight:600}.prose{overflow-wrap:anywhere}.prose>:first-child{margin-top:0}.prose>:last-child{margin-bottom:0}.prose p,.prose ul,.prose ol,.prose blockquote,.prose pre{margin:0 0 12px}.prose ul,.prose ol{padding-left:22px}.prose code{background:var(--hover);font-family:var(--font-mono);border-radius:4px;padding:1px 5px;font-size:.9em}.prose pre{background:var(--hover);border-radius:8px;padding:12px 14px;overflow-x:auto}.prose pre code{background:0 0;padding:0}.prose blockquote{border-left:3px solid var(--line2);color:var(--fg2);padding-left:14px}.prose--lead{font-size:17px;line-height:1.6}.review-note{background:var(--hover);border-radius:8px;gap:12px;margin-bottom:8px;padding:10px 14px;display:flex}.review-note__severity{letter-spacing:.04em;text-transform:uppercase;min-width:64px;color:var(--fg2);flex:none;font-size:12px;font-weight:600}.review-note__body{flex-wrap:wrap;align-items:baseline;gap:4px 12px;min-width:0;display:flex}.review-note__where{color:var(--fg2);font-size:12.5px}.review-note--warning{background:var(--amber-bg)}.review-note--warning .review-note__severity{color:var(--amber)}.review-note--risk{background:var(--red-bg)}.review-note--risk .review-note__severity{color:var(--red)}.review-notes{margin:0;padding:0;list-style:none}.segmented{border:1px solid var(--line2);border-radius:6px;display:inline-flex;overflow:hidden}.segmented__button{cursor:pointer;background:0 0;border:0;padding:4px 12px;font-size:13px}.segmented__button+.segmented__button{border-left:1px solid var(--line2)}.segmented__button:hover{background:var(--hover)}.segmented__button--active,.segmented__button--active:hover{background:var(--fg);color:var(--bg)}.slide>:not(.slide__section--wide){max-width:960px}.slide__head{margin-bottom:24px}.slide__kicker{color:var(--fg3);letter-spacing:.08em;text-transform:uppercase;margin-bottom:6px;font-size:12px;font-weight:600;display:block}.slide__title{font-family:var(--font-serif);letter-spacing:-.01em;text-wrap:balance;margin:0 0 12px;font-size:34px;font-weight:500;line-height:1.2}.slide__meta{flex-wrap:wrap;align-items:center;gap:8px 12px;font-size:13px;display:flex}.slide__ticket{margin-top:10px;font-size:14px;display:inline-block}.slide__pair{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:20px;display:grid}@media (width<=720px){.slide__pair{grid-template-columns:minmax(0,1fr)}}.slide__section{margin:32px 0}.slide__section-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.slide__section-head .slide__section-title{margin:0}.slide__section-title{letter-spacing:.06em;text-transform:uppercase;color:var(--fg2);margin:0 0 12px;font-size:13px;font-weight:600}.slide-nav{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;margin-top:40px;padding-top:16px;display:flex}.slide-nav__position{color:var(--fg2);font-variant-numeric:tabular-nums;font-size:13px}.story{margin:0;padding:0;list-style:none}.timeline{flex-direction:column;gap:2px;display:flex}.timeline__item{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:6px;align-items:baseline;gap:10px;padding:8px 10px;display:flex}.timeline__item:hover{background:var(--hover)}.timeline__item--active,.timeline__item--active:hover{background:var(--fg);color:var(--bg)}.timeline__marker{text-align:center;opacity:.7;flex:none;width:20px;font-size:12px;font-weight:600}.timeline__label{font-size:14px;line-height:1.35}.walkthrough-group{margin-top:24px}.walkthrough-group__summary{color:var(--fg2);cursor:pointer;padding:6px 0;font-size:14px;font-weight:500}.walkthrough-group__summary:hover{color:var(--fg)}.walkthrough-group[open] .walkthrough-group__summary{margin-bottom:8px}.walkthrough-list{border:1px solid var(--line2);border-radius:10px;margin:0;padding:0;list-style:none;overflow:hidden}.walkthrough-list__item{flex-direction:column;gap:6px;padding:14px 18px;display:flex}.walkthrough-list__item+.walkthrough-list__item{border-top:1px solid var(--line)}.walkthrough-list__item:hover{background:var(--bg2)}.walkthrough-list__title{color:var(--fg);font-size:17px;font-weight:500}.walkthrough-list__title:hover{color:var(--blue)}.walkthrough-list__meta{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.walkthrough-list__date{color:var(--fg2);font-size:13px}.login{max-width:360px;margin:0 auto;padding:72px 24px}.login__title{font-family:var(--font-serif);margin:0 0 20px;font-size:32px;font-weight:500}.login__form{flex-direction:column;gap:16px;display:flex}.page{max-width:880px;margin:0 auto;padding:32px 24px 56px}.page__title{font-family:var(--font-serif);margin:0 0 20px;font-size:32px;font-weight:500}.page__search{margin-bottom:20px}.page__empty,.text-muted{color:var(--fg2)}.text-mono{font-family:var(--font-mono)}