/* Personal brand design system v1.0.0 · https://design.rr2.dev/personal/ */
@font-face { font-family: "Fraunces"; src: url(fonts/fraunces.woff2) format("woff2"); font-weight: 500 600; font-style: normal; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url(fonts/instrument-sans-400.woff2) format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url(fonts/instrument-sans-500.woff2) format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Instrument Sans"; src: url(fonts/instrument-sans-600.woff2) format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(fonts/jetbrains-mono-400.woff2) format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(fonts/jetbrains-mono-500.woff2) format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Caveat"; src: url(fonts/caveat.woff2) format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
/* Generated from tokens.json by scripts/build.py. Do not edit. */
:root {
  --pb-font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --pb-font-sans: "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --pb-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --pb-font-hand: "Caveat", "Segoe Print", "Bradley Hand", cursive;
  --pb-size-tile: 10px;
  --pb-size-badge: 11px;
  --pb-size-xs: 12px;
  --pb-size-sm: 13px;
  --pb-size-md: 14px;
  --pb-size-compact: 15px;
  --pb-size-ui: 16px;
  --pb-size-tile-day: 17px;
  --pb-size-body: 18px;
  --pb-size-card: 20px;
  --pb-size-h4: 18px;
  --pb-size-h3: 22px;
  --pb-size-xl: 24px;
  --pb-size-h2: 28px;
  --pb-size-h1-sm: 32px;
  --pb-size-hero-sm: 38px;
  --pb-size-h1: 40px;
  --pb-size-hero: 52px;
  --pb-leading-tight: 1.15;
  --pb-leading-snug: 1.3;
  --pb-leading-body: 1.6;
  --pb-tracking-heading: -.01em;
  --pb-tracking-label: .08em;
  --pb-space-1: 4px;
  --pb-space-2: 8px;
  --pb-space-3: 12px;
  --pb-space-4: 16px;
  --pb-space-5: 20px;
  --pb-space-6: 24px;
  --pb-space-8: 32px;
  --pb-space-9: 36px;
  --pb-space-12: 48px;
  --pb-space-18: 72px;
  --pb-layout-column: 720px;
  --pb-layout-wide: 1024px;
  --pb-layout-gap: 24px;
  --pb-layout-bar: 60px;
  --pb-radius-sm: 4px;
  --pb-radius-md: 8px;
  --pb-radius-lg: 12px;
  --pb-radius-pill: 999px;
  --pb-radius-round: 50%;
  --pb-motion-fast: .18s;
  --pb-motion-base: .3s;
  --pb-motion-slow: .45s;
  --pb-motion-ease: cubic-bezier(.2,.7,.2,1);
  --pb-motion-ease-out: cubic-bezier(.3,.8,.3,1);
  --pb-paper: #f3f4f6;
  --pb-surface: #ffffff;
  --pb-surface-hover: #f6f7f9;
  --pb-sunken: #e9ecf0;
  --pb-line: #e2e5ea;
  --pb-line-strong: #cdd1d8;
  --pb-ink: #1f2329;
  --pb-text: #2c3038;
  --pb-muted: #5d636d;
  --pb-raspberry: #a8325e;
  --pb-raspberry-strong: #8f2950;
  --pb-raspberry-soft: #f8e5ed;
  --pb-slate: #3a5a80;
  --pb-slate-strong: #2f6690;
  --pb-slate-soft: #e2edf6;
  --pb-amber: #995700;
  --pb-amber-soft: #fff1dc;
  --pb-green: #0e7553;
  --pb-green-soft: #ddf3ea;
  --pb-red: #c2302f;
  --pb-red-soft: #fbe6e6;
  --pb-on-accent: #ffffff;
  --pb-glass: rgba(243,244,246,.86);
  --pb-scrim: rgba(15,17,20,.45);
  --pb-shadow-rest: 0 1px 2px rgba(31,35,41,.05), 0 2px 8px rgba(31,35,41,.04);
  --pb-shadow-lift: 0 2px 4px rgba(31,35,41,.06), 0 10px 24px rgba(31,35,41,.09);
  --pb-shadow-tilt: 0 4px 10px rgba(31,35,41,.12);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --pb-paper: #1d1e20;
    --pb-surface: #2e2e33;
    --pb-surface-hover: #34353a;
    --pb-sunken: #37383e;
    --pb-line: #3a3b3f;
    --pb-line-strong: #4a4b4f;
    --pb-ink: #dadadb;
    --pb-text: #c4c4c5;
    --pb-muted: #a8a9aa;
    --pb-raspberry: #ec8db1;
    --pb-raspberry-strong: #f4a9c5;
    --pb-raspberry-soft: #3a1f2b;
    --pb-slate: #93b4da;
    --pb-slate-strong: #82b6dd;
    --pb-slate-soft: #1c2b38;
    --pb-amber: #f2a94a;
    --pb-amber-soft: #3a2c19;
    --pb-green: #7fcca2;
    --pb-green-soft: #1f3328;
    --pb-red: #ef8f8e;
    --pb-red-soft: #3a2020;
    --pb-on-accent: #1d1e20;
    --pb-glass: rgba(29,30,32,.86);
    --pb-scrim: rgba(0,0,0,.6);
    --pb-shadow-rest: none;
    --pb-shadow-lift: 0 8px 24px rgba(0,0,0,.45);
    --pb-shadow-tilt: 0 4px 10px rgba(0,0,0,.4);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --pb-paper: #1d1e20;
  --pb-surface: #2e2e33;
  --pb-surface-hover: #34353a;
  --pb-sunken: #37383e;
  --pb-line: #3a3b3f;
  --pb-line-strong: #4a4b4f;
  --pb-ink: #dadadb;
  --pb-text: #c4c4c5;
  --pb-muted: #a8a9aa;
  --pb-raspberry: #ec8db1;
  --pb-raspberry-strong: #f4a9c5;
  --pb-raspberry-soft: #3a1f2b;
  --pb-slate: #93b4da;
  --pb-slate-strong: #82b6dd;
  --pb-slate-soft: #1c2b38;
  --pb-amber: #f2a94a;
  --pb-amber-soft: #3a2c19;
  --pb-green: #7fcca2;
  --pb-green-soft: #1f3328;
  --pb-red: #ef8f8e;
  --pb-red-soft: #3a2020;
  --pb-on-accent: #1d1e20;
  --pb-glass: rgba(29,30,32,.86);
  --pb-scrim: rgba(0,0,0,.6);
  --pb-shadow-rest: none;
  --pb-shadow-lift: 0 8px 24px rgba(0,0,0,.45);
  --pb-shadow-tilt: 0 4px 10px rgba(0,0,0,.4);
  color-scheme: dark;
}
/* ---- Base ----
   Opt in with class="pb" on <html> or <body>, so the brand never fights a page's own CSS. */
@media (prefers-reduced-motion: no-preference) { @view-transition { navigation: auto; } }

.pb { background: var(--pb-paper); color: var(--pb-ink); font: 400 var(--pb-size-body)/var(--pb-leading-body) var(--pb-font-sans);
  overflow-wrap: break-word; -webkit-font-smoothing: antialiased; -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; }
body.pb, .pb body { margin: 0; }
.pb *, .pb *::before, .pb *::after { box-sizing: border-box; }
.pb [hidden] { display: none !important; }
.pb :focus-visible { outline: 2px solid var(--pb-slate); outline-offset: 3px; border-radius: var(--pb-radius-sm); }
.pb ::selection { background: var(--pb-raspberry-soft); color: var(--pb-ink); }

/* Reading column and wide column */
.pb-wrap { max-width: calc(var(--pb-layout-column) + var(--pb-layout-gap) * 2); margin: 0 auto;
  padding: var(--pb-layout-gap) var(--pb-layout-gap) calc(var(--pb-layout-gap) * 2); }
.pb-wrap.is-wide { max-width: calc(var(--pb-layout-wide) + var(--pb-layout-gap) * 2); }

/* Screen-reader only */
.pb-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  .pb *, .pb *::before, .pb *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ---- Type classes and layout primitives ----
   Use these instead of setting font sizes or gaps by hand. */
.pb-display { margin: 0 0 var(--pb-space-4); color: var(--pb-ink); font: 600 var(--pb-size-hero)/1.08 var(--pb-font-display); letter-spacing: -.02em; text-wrap: balance; }
.pb-h1 { margin: 0 0 var(--pb-space-3); color: var(--pb-ink); font: 600 var(--pb-size-h1)/var(--pb-leading-tight) var(--pb-font-display); letter-spacing: var(--pb-tracking-heading); text-wrap: balance; }
.pb-h2 { margin: 0 0 var(--pb-space-3); color: var(--pb-ink); font: 600 var(--pb-size-h2)/var(--pb-leading-snug) var(--pb-font-display); letter-spacing: var(--pb-tracking-heading); text-wrap: balance; }
.pb-h3 { margin: 0 0 var(--pb-space-2); color: var(--pb-ink); font: 500 var(--pb-size-h3)/1.35 var(--pb-font-display); text-wrap: balance; }
.pb-h4 { margin: 0 0 var(--pb-space-2); color: var(--pb-ink); font: 600 var(--pb-size-h4)/1.4 var(--pb-font-sans); }
.pb-lede { margin: 0 0 var(--pb-space-4); color: var(--pb-text); font: 400 var(--pb-size-body)/var(--pb-leading-body) var(--pb-font-sans); }
.pb-body { margin: 0 0 var(--pb-space-4); color: var(--pb-text); font: 400 var(--pb-size-body)/var(--pb-leading-body) var(--pb-font-sans); }
.pb-ui { margin: 0; color: var(--pb-text); font: 400 var(--pb-size-ui)/1.5 var(--pb-font-sans); }
.pb-small { margin: 0; color: var(--pb-muted); font: 400 var(--pb-size-md)/1.6 var(--pb-font-sans); }
.pb-label { margin: 0 0 var(--pb-space-3); color: var(--pb-muted); font: 600 var(--pb-size-sm)/1.4 var(--pb-font-sans);
  letter-spacing: var(--pb-tracking-label); text-transform: uppercase; }
.pb-mono { font-family: var(--pb-font-mono); font-size: .9em; }
.pb-muted { color: var(--pb-muted); }
.pb-code { padding: 2px 5px; border-radius: var(--pb-radius-sm); background: var(--pb-sunken); font: .82em var(--pb-font-mono); }

/* Emphasis link (rr2.dev homepage): bold, thick raspberry underline */
.pb-link { color: var(--pb-ink); font-weight: 600; text-decoration: underline; text-decoration-thickness: 2px;
  text-underline-offset: 4px; text-decoration-color: var(--pb-raspberry); }
.pb-link:hover { color: var(--pb-raspberry); text-decoration-thickness: 3px; }

/* Layout primitives: a vertical stack and a wrapping row. Gap modifiers: is-tight (8), default (16), is-loose (24), is-section (48). */
.pb-stack { display: flex; flex-direction: column; gap: var(--pb-space-4); }
.pb-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--pb-space-3); }
.pb-stack > *, .pb-cluster > * { margin-top: 0; margin-bottom: 0; }
.pb-stack.is-tight, .pb-cluster.is-tight { gap: var(--pb-space-2); }
.pb-stack.is-loose, .pb-cluster.is-loose { gap: var(--pb-space-6); }
.pb-stack.is-section { gap: var(--pb-space-12); }
.pb-cluster.is-between { justify-content: space-between; }

@media (max-width: 560px) {
  .pb-display { font-size: var(--pb-size-hero-sm); }
  .pb-h1 { font-size: var(--pb-size-h1-sm); }
  .pb-h2 { font-size: var(--pb-size-xl); }
}

/* ---- Header ----
   Sticky glass bar. Left: avatar + "rr2.dev / section" crumb. Right: menu + theme toggle.
   <div class="pb-top"><header class="pb-nav">
     <div class="pb-logo"><a href="https://rr2.dev"><img class="pb-ico" src="avatar.webp" alt=""><span class="pb-root">rr2.dev</span></a>
       <span class="pb-slash">/</span><a href="/">notes</a></div>
     <ul class="pb-menu"><li><a href="/x/" aria-current="page"><span>X</span></a></li></ul>
   </header></div> */
.pb-top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--pb-glass);
  -webkit-backdrop-filter: saturate(1.4) blur(10px); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--pb-line); }
.pb-nav { display: flex; align-items: center; justify-content: space-between; gap: var(--pb-space-2);
  max-width: calc(var(--pb-layout-wide) + var(--pb-layout-gap) * 2); min-height: var(--pb-layout-bar); margin: 0 auto; padding: 0 var(--pb-layout-gap); }
.pb-logo { display: flex; align-items: center; gap: var(--pb-space-2); min-width: 0; font: 700 var(--pb-size-xl)/1 var(--pb-font-sans); white-space: nowrap; }
.pb-logo a { display: flex; align-items: center; gap: var(--pb-space-2); color: var(--pb-ink); text-decoration: none; }
.pb-logo .pb-root { color: var(--pb-muted); font-weight: 500; }
.pb-logo a:hover .pb-root { color: var(--pb-ink); }
.pb-logo .pb-slash { color: var(--pb-line-strong); font-weight: 400; }
.pb-ico { display: block; flex: none; width: 24px; height: 24px; border-radius: var(--pb-radius-round); }
.pb-menu { display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; list-style: none; font-size: var(--pb-size-ui); }
.pb-menu a { display: block; padding: 0 10px; color: var(--pb-ink); line-height: var(--pb-layout-bar); text-decoration: none; }
.pb-menu a:hover { color: var(--pb-slate); }
.pb-menu a[aria-current] { color: var(--pb-slate); }
.pb-menu a[aria-current] span { border-bottom: 2px solid currentColor; }

/* Theme toggle: one button, sun shows in dark, moon in light.
   Store the choice in localStorage and set <html data-theme="light|dark">. */
.pb-toggle { display: grid; place-items: center; width: 36px; height: 36px; margin-left: var(--pb-space-1); padding: 0; border: 0;
  border-radius: var(--pb-radius-round); background: none; color: var(--pb-ink); cursor: pointer; }
.pb-toggle:hover { background: var(--pb-sunken); }
.pb-toggle svg { width: 18px; height: 18px; }
.pb-toggle .pb-sun, :root[data-theme="dark"] .pb-toggle .pb-moon { display: none; }
:root[data-theme="dark"] .pb-toggle .pb-sun { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .pb-toggle .pb-sun { display: block; }
  :root:not([data-theme="light"]) .pb-toggle .pb-moon { display: none; }
}

/* Phones: the avatar still links home, the "rr2.dev" text goes, and a menu marked
   .is-optional (in-page jump links) hides. Keep real menus to three short items. */
@media (max-width: 560px) {
  .pb-nav { padding: 0 16px; }
  .pb-logo { font-size: var(--pb-size-card); }
  .pb-logo .pb-root, .pb-menu.is-optional { display: none; }
  .pb-menu a { padding: 0 6px; font-size: var(--pb-size-compact); }
}

/* ---- Type and long-form content ---- */
.pb-content h1 { margin: 0 0 var(--pb-space-3); color: var(--pb-ink); font: 600 var(--pb-size-h1)/var(--pb-leading-tight) var(--pb-font-display);
  letter-spacing: var(--pb-tracking-heading); text-wrap: balance; }
.pb-desc { margin: 0 0 10px; color: var(--pb-muted); font-size: var(--pb-size-body); }

/* Divider the guide can sit on */
.pb-rule { height: 1px; margin: 0 0 calc(var(--pb-layout-gap) * 1.5); border: 0; background: var(--pb-line); }

.pb-content { color: var(--pb-text); }
.pb-content > :first-child { margin-top: 0; }
.pb-content p, .pb-content ul, .pb-content ol, .pb-content figure, .pb-content blockquote, .pb-content table, .pb-content pre { margin: 0 0 var(--pb-space-5); }
/* rr2.dev style: each h2 opens a new section with a hairline above it */
.pb-content h2 { margin: 56px 0 var(--pb-space-4); padding-top: 28px; border-top: 1px solid var(--pb-line); color: var(--pb-ink);
  font: 600 var(--pb-size-h2)/var(--pb-leading-snug) var(--pb-font-display); letter-spacing: var(--pb-tracking-heading); scroll-margin-top: 80px; }
.pb-content h3 { margin: var(--pb-space-9) 0 var(--pb-space-3); color: var(--pb-ink); font: 500 var(--pb-size-h3)/1.35 var(--pb-font-display); scroll-margin-top: 80px; }
.pb-content h4 { margin: var(--pb-space-6) 0 10px; color: var(--pb-ink); font: 600 var(--pb-size-h4)/1.4 var(--pb-font-sans); }
.pb-content strong { color: var(--pb-ink); font-weight: 600; }
.pb-content a { color: var(--pb-ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px;
  transition: color var(--pb-motion-fast), text-decoration-thickness var(--pb-motion-fast); }
.pb-content a:hover { color: var(--pb-raspberry); text-decoration-thickness: 2px; }

/* Lists: a different marker per level so nesting reads at a glance */
.pb-content ul, .pb-content ol { padding-left: var(--pb-space-6); }
.pb-content li { margin: 9px 0 0; }
.pb-content li::marker { color: var(--pb-muted); }
.pb-content li > ul, .pb-content li > ol { margin-bottom: 0; }
.pb-content ul ul { list-style-type: "–  "; padding-left: 22px; }
.pb-content ul ul > li { margin-top: 6px; color: var(--pb-muted); font-size: .95em; }
.pb-content ul ul ul { list-style-type: "·  "; }

.pb-content blockquote { margin-left: 0; padding: 2px 0 2px var(--pb-space-5); border-left: 3px solid var(--pb-raspberry); color: var(--pb-ink); }
.pb-content hr { height: 1px; margin: var(--pb-space-9) 0; border: 0; background: var(--pb-line); }
.pb-content code { padding: 2px 5px; border-radius: var(--pb-radius-sm); background: var(--pb-sunken); font: .82em var(--pb-font-mono); }
.pb-content pre { overflow-x: auto; padding: var(--pb-space-4) var(--pb-space-5); border: 1px solid var(--pb-line); border-radius: var(--pb-radius-md);
  background: var(--pb-surface); font: 14px/1.6 var(--pb-font-mono); }
.pb-content pre code { padding: 0; background: none; font-size: inherit; }
.pb-content img, .pb-content video { max-width: 100%; height: auto; border-radius: var(--pb-radius-md); }
.pb-content figure { margin-left: 0; margin-right: 0; }
.pb-content figcaption { margin-top: var(--pb-space-2); color: var(--pb-muted); font-size: var(--pb-size-md); }
.pb-content table { width: 100%; border-collapse: collapse; font-size: var(--pb-size-compact); }
.pb-content th, .pb-content td { padding: var(--pb-space-2) var(--pb-space-3); border-bottom: 1px solid var(--pb-line); text-align: left; }
.pb-content th { color: var(--pb-muted); font: 600 var(--pb-size-sm)/1.4 var(--pb-font-sans); letter-spacing: var(--pb-tracking-label); text-transform: uppercase; }

@media (max-width: 560px) {
  .pb-content h1 { font-size: var(--pb-size-h1-sm); }
  .pb-content h2 { font-size: var(--pb-size-xl); }
}

/* ---- Meta row, tags, badges, chips, buttons ---- */

/* Accent hook: any element with data-accent sets --pb-a / --pb-a-soft for its children.
   raspberry is the default; slate is for secondary sections. */
:root, [data-accent="raspberry"] { --pb-a: var(--pb-raspberry); --pb-a-soft: var(--pb-raspberry-soft); }
[data-accent="slate"] { --pb-a: var(--pb-slate-strong); --pb-a-soft: var(--pb-slate-soft); }
[data-accent="amber"] { --pb-a: var(--pb-amber); --pb-a-soft: var(--pb-amber-soft); }
[data-accent="green"] { --pb-a: var(--pb-green); --pb-a-soft: var(--pb-green-soft); }
[data-accent="neutral"] { --pb-a: var(--pb-muted); --pb-a-soft: var(--pb-sunken); }

/* Date · reading time · tag */
.pb-meta { display: flex; flex-wrap: wrap; align-items: center; gap: var(--pb-space-1) 6px; color: var(--pb-muted);
  font-size: var(--pb-size-sm); line-height: 1.5; font-variant-numeric: tabular-nums; }
.pb-meta > * + *::before { content: "·"; margin-right: 6px; }
.pb-meta > .pb-tag::before, .pb-meta > .pb-badge + *::before, .pb-meta > .pb-badge::before { content: none; }
.pb-meta time { color: var(--pb-ink); font-weight: 500; }

/* Tag: mono pill tinted by the accent */
.pb-tag { display: inline-block; padding: 1px 7px; border-radius: var(--pb-radius-pill); background: var(--pb-a-soft); color: var(--pb-a);
  font: 600 var(--pb-size-xs)/1.5 var(--pb-font-mono); }
/* Badge: tiny uppercase status ("New") */
.pb-badge { display: inline-block; padding: 1px 7px; border-radius: var(--pb-radius-pill); background: var(--pb-amber-soft); color: var(--pb-amber);
  font: 700 var(--pb-size-badge)/1.5 var(--pb-font-sans); letter-spacing: .06em; text-transform: uppercase; }
.pb-badge[data-accent] { background: var(--pb-a-soft); color: var(--pb-a); }

/* Filter chips. The current one fills with the accent. */
.pb-chips { display: flex; flex-wrap: wrap; gap: var(--pb-space-2); margin: 0 0 var(--pb-layout-gap); padding: 0; list-style: none; }
.pb-chips a, .pb-chip { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; padding: var(--pb-space-1) var(--pb-space-3);
  border: 1px solid var(--pb-line); border-radius: var(--pb-radius-pill); background: var(--pb-surface); color: var(--pb-muted);
  font: 500 var(--pb-size-md)/1.5 var(--pb-font-sans); text-decoration: none; cursor: pointer; }
.pb-chips a::before, .pb-chip::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--pb-a); }
.pb-chips a[aria-current], .pb-chip[aria-pressed="true"] { border-color: var(--pb-a); background: var(--pb-a); color: var(--pb-on-accent); }
.pb-chips a[aria-current]::before, .pb-chip[aria-pressed="true"]::before { background: currentColor; }
.pb-chips .pb-n { font-size: var(--pb-size-xs); font-variant-numeric: tabular-nums; }

/* Buttons */
.pb-btn { display: inline-flex; align-items: center; justify-content: center; gap: var(--pb-space-2); min-height: 40px; padding: 0 18px;
  border: 1px solid transparent; border-radius: var(--pb-radius-pill); background: var(--pb-raspberry); color: var(--pb-on-accent);
  font: 600 var(--pb-size-compact)/1 var(--pb-font-sans); text-decoration: none; cursor: pointer;
  transition: background var(--pb-motion-fast), border-color var(--pb-motion-fast), color var(--pb-motion-fast), transform var(--pb-motion-fast); }
.pb-btn:hover { background: var(--pb-raspberry-strong); }
.pb-btn:active { transform: translateY(1px); }
.pb-btn svg { width: 16px; height: 16px; }
.pb-btn.is-secondary { border-color: var(--pb-line-strong); background: var(--pb-surface); color: var(--pb-ink); }
.pb-btn.is-secondary:hover { border-color: var(--pb-ink); background: var(--pb-ink); color: var(--pb-paper); }


.pb-btn.is-quiet { min-height: 32px; padding: 0 var(--pb-space-1); background: none; color: var(--pb-muted);
  text-decoration: underline; text-underline-offset: 3px; }
.pb-btn.is-quiet:hover { color: var(--pb-ink); }
.pb-btn.is-small { min-height: 30px; padding: 0 12px; font-size: 13px; font-weight: 500; }
.pb-btn[disabled], .pb-btn[aria-disabled="true"] { opacity: .5; pointer-events: none; }

/* Round icon button (carousel arrows, close) */
.pb-icon-btn { display: grid; place-items: center; width: 32px; height: 32px; padding: 0; border: 0; border-radius: var(--pb-radius-round);
  background: none; color: var(--pb-ink); cursor: pointer; }
.pb-icon-btn:hover { background: var(--pb-sunken); }
.pb-icon-btn svg { width: 16px; height: 16px; }

/* Progress dots */
.pb-dots { display: flex; gap: 10px; }
.pb-dots button { position: relative; width: 6px; height: 6px; padding: 0; border: 0; border-radius: var(--pb-radius-pill);
  background: var(--pb-line-strong); cursor: pointer; transition: width var(--pb-motion-base), background var(--pb-motion-base); }
.pb-dots button::after { content: ""; position: absolute; inset: -10px -4px; }
.pb-dots button[aria-current] { width: 20px; background: var(--pb-ink); }

/* Callout */
.pb-note { padding: var(--pb-space-4) var(--pb-space-5); border: 1px solid var(--pb-line); border-left: 3px solid var(--pb-a, var(--pb-slate));
  border-radius: var(--pb-radius-md); background: var(--pb-surface); color: var(--pb-text); font-size: var(--pb-size-ui); }
.pb-note > :last-child { margin-bottom: 0; }
.pb-note strong { color: var(--pb-ink); }
.pb-note.is-dashed { border: 1px dashed var(--pb-line-strong); color: var(--pb-muted); }

@media (hover: hover) {
  .pb-chips a, .pb-chip { transition: transform var(--pb-motion-fast), border-color var(--pb-motion-fast), color var(--pb-motion-fast); }
  .pb-chips a:not([aria-current]):hover, .pb-chip:not([aria-pressed="true"]):hover { transform: translateY(-1px); border-color: var(--pb-line-strong); color: var(--pb-ink); }
}

/* ---- Form fields ----
   <div class="pb-field"><label for="x">Label</label><input class="pb-input" id="x"><p class="pb-help">Help</p></div>
   Error: add is-error to .pb-field, aria-invalid="true" and aria-describedby on the input. */
.pb-field { display: grid; gap: 6px; }
.pb-field > label, .pb-field > .pb-field-label { color: var(--pb-ink); font: 600 var(--pb-size-md)/1.4 var(--pb-font-sans); }
.pb-field .pb-optional { color: var(--pb-muted); font-weight: 400; }
.pb-input, .pb-textarea, .pb-select { width: 100%; min-height: 40px; padding: 8px 12px; border: 1px solid var(--pb-line-strong);
  border-radius: var(--pb-radius-md); background: var(--pb-surface); color: var(--pb-ink); font: 400 var(--pb-size-ui)/1.5 var(--pb-font-sans);
  transition: border-color var(--pb-motion-fast), box-shadow var(--pb-motion-fast); }
.pb-textarea { min-height: 96px; resize: vertical; }
.pb-select { appearance: none; padding-right: 36px; cursor: pointer;
  background: var(--pb-surface) no-repeat right 12px center / 12px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%235d636d' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 1.5l5 5 5-5'/%3E%3C/svg%3E"); }
.pb-input::placeholder, .pb-textarea::placeholder { color: var(--pb-muted); opacity: 1; }
.pb-input:hover, .pb-textarea:hover, .pb-select:hover { border-color: var(--pb-muted); }
.pb .pb-input:focus-visible, .pb .pb-textarea:focus-visible, .pb .pb-select:focus-visible,
.pb-input:focus, .pb-textarea:focus, .pb-select:focus { outline: none; border-color: var(--pb-slate); box-shadow: 0 0 0 3px var(--pb-slate-soft); }
.pb-input[disabled], .pb-textarea[disabled], .pb-select[disabled] { background: var(--pb-sunken); color: var(--pb-muted); cursor: not-allowed; }
.pb-help { margin: 0; color: var(--pb-muted); font-size: var(--pb-size-sm); line-height: 1.5; }
.pb-field.is-error .pb-input, .pb-field.is-error .pb-textarea, .pb-field.is-error .pb-select { border-color: var(--pb-red); }
.pb-field.is-error .pb-input:focus, .pb-field.is-error .pb-textarea:focus { box-shadow: 0 0 0 3px var(--pb-red-soft); }
.pb-field.is-error .pb-help { color: var(--pb-red); font-weight: 500; }

/* Checkbox and radio: native inputs, accent-coloured */
.pb-check { display: flex; align-items: flex-start; gap: 10px; min-height: 24px; color: var(--pb-text); font: 400 var(--pb-size-ui)/1.5 var(--pb-font-sans); cursor: pointer; }
.pb-check input { flex: none; width: 18px; height: 18px; margin: 3px 0 0; accent-color: var(--pb-raspberry); cursor: pointer; }
.pb-check small { display: block; color: var(--pb-muted); font-size: var(--pb-size-sm); }
.pb-fieldset { display: grid; gap: 10px; margin: 0; padding: 0; border: 0; }
.pb-fieldset legend { margin-bottom: 4px; padding: 0; color: var(--pb-ink); font: 600 var(--pb-size-md)/1.4 var(--pb-font-sans); }

/* ---- Cards, lists, date tile ---- */

/* Card. Put a .pb-cover link inside to make the whole card clickable. */
.pb-card { position: relative; display: block; padding: var(--pb-space-4) var(--pb-space-5); border: 1px solid var(--pb-line);
  border-radius: var(--pb-radius-md); background: var(--pb-surface); box-shadow: var(--pb-shadow-rest); color: var(--pb-text); }
.pb-card h3, .pb-card .pb-card-title { margin: 0 0 var(--pb-space-1); color: var(--pb-ink); font: 500 var(--pb-size-card)/var(--pb-leading-snug) var(--pb-font-display);
  letter-spacing: var(--pb-tracking-heading); text-wrap: balance; }
.pb-card p { margin: 0; color: var(--pb-muted); font-size: var(--pb-size-md); line-height: 1.6; }
.pb-card .pb-meta { margin-top: var(--pb-space-2); }
.pb-cover { position: absolute; inset: 0; border-radius: var(--pb-radius-md); }
a.pb-card { text-decoration: none; }

/* Grid of cards */
.pb-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: var(--pb-space-3); margin: 0; padding: 0; list-style: none; }

/* Calendar tile: month on an accent strip, day below */
.pb-cal { flex: none; display: grid; width: 44px; overflow: hidden; border: 1px solid var(--pb-line); border-radius: 7px;
  background: var(--pb-a-soft); text-align: center; line-height: 1; font-variant-numeric: tabular-nums; }
.pb-cal b { padding: 3px 0 2px; background: var(--pb-a); color: var(--pb-on-accent); font: 700 var(--pb-size-tile)/1.2 var(--pb-font-sans);
  letter-spacing: var(--pb-tracking-label); text-transform: uppercase; }
.pb-cal span { padding: 5px 0 6px; color: var(--pb-ink); font: 700 var(--pb-size-tile-day)/1 var(--pb-font-sans); }

/* Grouped list (month-by-month archive) */
.pb-list { margin: 0 0 var(--pb-space-4); padding: 6px var(--pb-space-2) var(--pb-space-2); border: 1px solid var(--pb-line);
  border-radius: var(--pb-radius-md); background: var(--pb-surface); box-shadow: var(--pb-shadow-rest); }
.pb-list h3 { display: flex; justify-content: space-between; align-items: baseline; margin: var(--pb-space-2) var(--pb-space-3) 6px;
  color: var(--pb-ink); font: 600 var(--pb-size-compact)/1.4 var(--pb-font-sans); }
.pb-list h3 span { color: var(--pb-muted); font-size: var(--pb-size-sm); font-weight: 400; }
.pb-list ol, .pb-list ul { margin: 0; padding: 0; list-style: none; }
.pb-list li a { display: flex; align-items: center; gap: 14px; padding: var(--pb-space-2) var(--pb-space-3); border-radius: 6px;
  color: var(--pb-ink); font-size: var(--pb-size-ui); text-decoration: none; }
.pb-list li + li a { box-shadow: 0 -1px 0 var(--pb-line); }
.pb-list .pb-body { display: grid; flex: 1; gap: 2px; min-width: 0; line-height: 1.35; }
.pb-list .pb-sub { color: var(--pb-muted); font-size: var(--pb-size-sm); }

/* Profile: the big round portrait from rr2.dev */
.pb-portrait { display: block; width: 150px; height: 150px; border-radius: var(--pb-radius-round); object-fit: cover; }

@media (hover: hover) {
  a.pb-card, .pb-card:has(.pb-cover) { transition: transform var(--pb-motion-fast), box-shadow var(--pb-motion-fast), border-color var(--pb-motion-fast); }
  a.pb-card:hover, .pb-card:has(.pb-cover):hover { transform: translateY(-3px); border-color: var(--pb-line-strong); box-shadow: var(--pb-shadow-lift); }
  a.pb-card:hover .pb-card-title, a.pb-card:hover h3, .pb-card:has(.pb-cover):hover h3 { color: var(--pb-a, var(--pb-raspberry)); }
  .pb-list li a:hover { background: var(--pb-surface-hover); }
  .pb-list li a:hover, .pb-list li a:hover + * { box-shadow: none; }
  .pb-list li a .pb-cal { transition: transform var(--pb-motion-fast), box-shadow var(--pb-motion-fast); }
  .pb-list li a:hover .pb-cal { transform: translateY(-2px) rotate(-3deg); box-shadow: var(--pb-shadow-tilt); }
  .pb-list li a:hover .pb-t { color: var(--pb-a); text-decoration: underline; text-underline-offset: 3px; }
}

/* ---- Navigation: skip link, breadcrumbs, tabs, pagination ---- */

/* First element in <body>. Hidden until focused. */
.pb-skip { position: absolute; top: 8px; left: 8px; z-index: 50; padding: 8px 14px; border-radius: var(--pb-radius-pill);
  background: var(--pb-ink); color: var(--pb-paper); font: 600 var(--pb-size-md)/1.4 var(--pb-font-sans); text-decoration: none;
  transform: translateY(-150%); transition: transform var(--pb-motion-fast); }
.pb-skip:focus { transform: none; }

.pb-crumbs { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 var(--pb-space-1); padding: 0; list-style: none; color: var(--pb-muted); font-size: var(--pb-size-sm); }
.pb-crumbs li + li::before { content: "»"; margin-right: 6px; color: var(--pb-line-strong); }
.pb-crumbs a { color: inherit; text-decoration: none; }
.pb-crumbs a:hover { color: var(--pb-ink); text-decoration: underline; }
.pb-crumbs [aria-current] { color: var(--pb-ink); }

/* Tabs as links between pages or sections. No JavaScript. */
.pb-tabs { display: flex; gap: var(--pb-space-1); margin: 0 0 var(--pb-space-6); padding: 0; overflow-x: auto; list-style: none;
  border-bottom: 1px solid var(--pb-line); scrollbar-width: none; }
.pb-tabs a { display: block; padding: 10px 12px; margin-bottom: -1px; border-bottom: 2px solid transparent; color: var(--pb-muted);
  font: 500 var(--pb-size-ui)/1.4 var(--pb-font-sans); text-decoration: none; white-space: nowrap; }
.pb-tabs a:hover { color: var(--pb-ink); }
.pb-tabs a[aria-current] { border-bottom-color: var(--pb-raspberry); color: var(--pb-ink); font-weight: 600; }

/* Pagination: previous / count / next */
.pb-pager { display: flex; align-items: center; justify-content: space-between; gap: var(--pb-space-3); margin-top: var(--pb-space-6); }
.pb-pager a { display: inline-flex; align-items: center; gap: 6px; min-height: 40px; padding: 0 14px; border: 1px solid var(--pb-line);
  border-radius: var(--pb-radius-pill); background: var(--pb-surface); color: var(--pb-ink); font: 500 var(--pb-size-md)/1 var(--pb-font-sans); text-decoration: none; }
.pb-pager a:hover { border-color: var(--pb-line-strong); background: var(--pb-surface-hover); }
.pb-pager a[aria-disabled="true"] { opacity: .45; pointer-events: none; }
.pb-pager span { color: var(--pb-muted); font-size: var(--pb-size-sm); font-variant-numeric: tabular-nums; }
.pb-pager svg { width: 14px; height: 14px; }

/* ---- Tables, empty states, dialogs, toasts ---- */

/* Standalone table. Wrap in .pb-table-wrap so it scrolls sideways on phones instead of the page. */
.pb-table-wrap { overflow-x: auto; border: 1px solid var(--pb-line); border-radius: var(--pb-radius-md); background: var(--pb-surface); }
.pb-table { width: 100%; border-collapse: collapse; color: var(--pb-text); font: 400 var(--pb-size-compact)/1.5 var(--pb-font-sans); font-variant-numeric: tabular-nums; }
.pb-table caption { padding: 12px 16px 0; color: var(--pb-muted); font-size: var(--pb-size-sm); text-align: left; caption-side: top; }
.pb-table th, .pb-table td { padding: 10px 16px; border-bottom: 1px solid var(--pb-line); text-align: left; vertical-align: top; }
.pb-table thead th { color: var(--pb-muted); font: 600 var(--pb-size-xs)/1.4 var(--pb-font-sans); letter-spacing: var(--pb-tracking-label); text-transform: uppercase; white-space: nowrap; }
.pb-table tbody tr:last-child td, .pb-table tbody tr:last-child th { border-bottom: 0; }
.pb-table tbody th { color: var(--pb-ink); font-weight: 600; }
.pb-table .is-num { text-align: right; }
@media (hover: hover) { .pb-table tbody tr:hover { background: var(--pb-surface-hover); } }

/* Empty state: dashed box, one line of why, one action */
.pb-empty { display: grid; justify-items: center; gap: var(--pb-space-2); padding: var(--pb-space-9) var(--pb-space-6); border: 1px dashed var(--pb-line-strong);
  border-radius: var(--pb-radius-md); background: var(--pb-surface); color: var(--pb-muted); text-align: center; font-size: var(--pb-size-ui); }
.pb-empty strong { color: var(--pb-ink); font: 500 var(--pb-size-card)/1.3 var(--pb-font-display); }
.pb-empty p { margin: 0; max-width: 40ch; }
.pb-empty .pb-btn { margin-top: var(--pb-space-2); }

/* Dialog: native <dialog>, opened with dialog.showModal() */
.pb-dialog { width: min(28rem, calc(100vw - 32px)); padding: 0; border: 1px solid var(--pb-line); border-radius: var(--pb-radius-lg);
  background: var(--pb-surface); color: var(--pb-text); box-shadow: var(--pb-shadow-lift); }
.pb-dialog::backdrop { background: var(--pb-scrim); -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px); }
.pb-dialog-body { display: grid; gap: var(--pb-space-3); padding: var(--pb-space-6); }
.pb-dialog h2 { margin: 0; color: var(--pb-ink); font: 600 var(--pb-size-h3)/1.3 var(--pb-font-display); }
.pb-dialog p { margin: 0; font-size: var(--pb-size-ui); }
.pb-dialog-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--pb-space-2); padding: var(--pb-space-4) var(--pb-space-6);
  border-top: 1px solid var(--pb-line); }
/* Static preview (style guide only): show a dialog in the page flow */
.pb-dialog.is-static { position: static; display: block; margin: 0; }

/* Toast: short status message. Put role="status" on it. Place fixed bottom-center, or inline. */
.pb-toast { display: inline-flex; align-items: center; gap: var(--pb-space-3); max-width: min(26rem, calc(100vw - 32px)); padding: 10px 10px 10px 16px;
  border-radius: var(--pb-radius-pill); background: var(--pb-ink); color: var(--pb-paper); box-shadow: var(--pb-shadow-lift);
  font: 500 var(--pb-size-md)/1.4 var(--pb-font-sans); }
.pb-toast .pb-dot { width: 8px; height: 8px; flex: none; border-radius: 50%; background: var(--pb-a); }
.pb-toast button { padding: 4px 10px; border: 0; border-radius: var(--pb-radius-pill); background: transparent; color: inherit;
  font: 600 var(--pb-size-sm)/1.4 var(--pb-font-sans); text-decoration: underline; text-underline-offset: 2px; cursor: pointer; }
.pb-toast-region { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); z-index: 40; transform: translateX(-50%); }
@media (prefers-reduced-motion: no-preference) {
  .pb-toast.is-entering { animation: pb-toast-in var(--pb-motion-base) var(--pb-motion-ease); }
}
@keyframes pb-toast-in { from { opacity: 0; translate: 0 8px; } }

/* ---- The guide: stick figure and handwritten speech ----
   The figure is assets/guide.svg (standing pose). Lines take --pb-ink, the head fills with --pb-surface,
   so it works in both themes. One gentle motion only: a slow wave when it speaks. */
.pb-guide { display: inline-flex; align-items: flex-end; gap: var(--pb-space-2); }
.pb-figure { display: block; width: 60px; height: 88px; flex: none; overflow: visible; }
.pb-figure .ln { fill: none; stroke: var(--pb-ink); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.pb-figure .hd { fill: var(--pb-surface); stroke: var(--pb-ink); stroke-width: 2.5; }
.pb-figure .eye { fill: var(--pb-ink); }
.pb-figure .mouth { fill: none; stroke: var(--pb-ink); stroke-width: 1.6; stroke-linecap: round; }
.pb-figure .wv { display: none; }
.pb-figure .wv, .pb-figure .fa { transform-box: view-box; }
.pb-figure .wv { transform-origin: 30px 41px; }
.pb-figure .fa { transform-origin: 18px 38px; }

/* Speech bubble in Caveat. Tail points down-left at the figure. */
.pb-bubble { position: relative; width: max-content; max-width: min(17rem, 78vw); margin: 0 0 60px; padding: var(--pb-space-2) 14px 9px;
  border: 1px solid var(--pb-line); border-radius: var(--pb-radius-lg); background: var(--pb-surface); box-shadow: var(--pb-shadow-rest); color: var(--pb-ink); }
.pb-bubble::after { content: ""; position: absolute; left: -6px; bottom: 16px; width: 10px; height: 10px; background: var(--pb-surface);
  border-left: 1px solid var(--pb-line); border-bottom: 1px solid var(--pb-line); transform: rotate(45deg); }
.pb-bubble p, .pb-hand { margin: 0; font: 600 19px/1.15 var(--pb-font-hand); letter-spacing: .01em; }
.pb-bubble .pb-acts { display: flex; flex-wrap: wrap; gap: 6px; margin-top: var(--pb-space-2); }

@media (prefers-reduced-motion: no-preference) {
  .pb-guide:hover .wave-arm, .pb-guide.is-waving .wave-arm { visibility: hidden; }
  .pb-guide:hover .wv, .pb-guide.is-waving .wv { display: inline; animation: pb-raise 1.4s ease-in-out; }
  .pb-guide:hover .fa, .pb-guide.is-waving .fa { animation: pb-wag 1.4s ease-in-out; }
}
@keyframes pb-raise { 0% { rotate: -95deg; } 16%, 84% { rotate: 0deg; } 100% { rotate: -95deg; } }
@keyframes pb-wag { 0%, 16% { rotate: 0deg; } 27% { rotate: -22deg; } 40% { rotate: 18deg; } 53% { rotate: -22deg; } 66% { rotate: 18deg; }
  76% { rotate: -10deg; } 84%, 100% { rotate: 0deg; } }

/* ---- Footer ---- */
.pb-footer { max-width: calc(var(--pb-layout-column) + var(--pb-layout-gap) * 2); margin: 0 auto; padding: var(--pb-space-9) var(--pb-layout-gap);
  color: var(--pb-muted); font: 13px/1.8 var(--pb-font-sans); text-align: center; }
.pb-footer p { margin: 0; }
.pb-footer a { color: inherit; text-decoration: none; }
.pb-footer a:hover { color: var(--pb-ink); text-decoration: underline; }
.pb-footer .pb-social { display: flex; justify-content: center; gap: var(--pb-space-1); margin-bottom: var(--pb-space-2); }
.pb-footer .pb-social a { display: grid; place-items: center; width: 32px; height: 32px; border-radius: var(--pb-radius-round); }
.pb-footer .pb-social a:hover { background: var(--pb-sunken); color: var(--pb-ink); text-decoration: none; }
.pb-footer .pb-social svg { width: 18px; height: 18px; }