/* Layout: plain-text academic page. One left-aligned column, a 56px rhythm
   between logo, intro and nav, set over Paper's grain gradient. */

/* Satoshi by Indian Type Foundry (Fontshare, ITF Free Font License).
   Self-hosted WOFF2, converted from the desktop TTFs. Browsers only
   download the faces a page actually uses. */
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-Light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-LightItalic.woff2") format("woff2");
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-MediumItalic.woff2") format("woff2");
  font-weight: 500;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-BoldItalic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-Black.woff2") format("woff2");
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Satoshi";
  src: url("fonts/Satoshi-BlackItalic.woff2") format("woff2");
  font-weight: 900;
  font-style: italic;
  font-display: swap;
}

/* Reenie Beanie by James Grieshaber (SIL Open Font License, see
   fonts/ReenieBeanie-OFL.txt): the handwriting on the email note. */
@font-face {
  font-family: "Reenie Beanie";
  src: url("fonts/ReenieBeanie.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Greyscale (final design system) */
  --grey-900: #171B31;
  --grey-800: #2B2F45;
  --grey-700: #535C76;
  --grey-300: #C5C9D6;
  --grey-200: #E5E6E9;
  --grey-100: #F8F8F8;
  --white: #FFFFFF;

  /* Logo ink, from the wink/open logo files (was #2B09B2 in Paper) */
  --logo: #4154EC;

  /* Accent: interactive states only */
  --accent: #FE2C25;

  /* Motion: a gentle spring (damping 0.72, ~4% overshoot), sampled for CSS */
  /* Pendulum swing (damping 0.32) for the hanging email tag */
  --swing: linear(0, 0.055, 0.199, 0.4, 0.624, 0.844, 1.037, 1.187, 1.288, 1.338, 1.343, 1.31, 1.251, 1.177, 1.099, 1.026, 0.964, 0.919, 0.891, 0.881, 0.885, 0.9, 0.923, 0.95, 0.976, 1, 1.019, 1.033, 1.04, 1.041, 1.038, 1.032, 1.023, 1.014, 1.005, 0.997, 0.991, 0.987, 0.986, 0.986, 0.988, 0.99, 0.993, 0.997, 1);
  /* Softer spring (damping 0.86, ~0.5% overshoot) for the full-height sheet */
  --sheet-spring: linear(0, 0.0346, 0.1176, 0.2249, 0.3401, 0.4529, 0.5569, 0.6489, 0.7277, 0.7933, 0.8467, 0.8892, 0.9223, 0.9475, 0.9663, 0.9799, 0.9896, 0.9961, 1.0004, 1.003, 1.0044, 1.0049, 1.005, 1.0047, 1.0042, 1.0036, 1.0031, 1.0025, 1);
  --spring: linear(0, 0.0411, 0.1408, 0.2705, 0.4094, 0.5436, 0.6645, 0.7676, 0.8515, 0.9166, 0.9647, 0.9982, 1.0198, 1.0321, 1.0376, 1.0382, 1.0357, 1.0313, 1.0261, 1.0208, 1.0158, 1.0114, 1.0077, 1.0047, 1.0025, 1.0008, 0.9997, 0.999, 0.9987, 0.9985, 1);

  --font: "Satoshi", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;

  /* Paper frame: 1512 × 982 — margin 121, logo top 99, gaps of 56 */
  --gutter-x: clamp(24px, 8vw, 121px);
  --top: clamp(48px, 10vh, 99px);
  --rhythm: 56px;
  --line: 20px;

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--grey-100);
  color: var(--grey-900);
  font-family: var(--font);
  font-size: 16px;
  line-height: var(--line);
  font-weight: 700;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Shader layer: spans the whole page, so the blobs scroll with the content */
body { position: relative; }
.paper {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: var(--grey-100);
  pointer-events: none;
}
.paper canvas { display: block; }

/* Main view: always exactly one viewport tall */
.main-view {
  position: relative;
  z-index: 2; /* above the footer sketch, so the email note hangs over it */
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--rhythm);
  padding-top: calc(var(--top) + env(safe-area-inset-top, 0px));
  padding-bottom: var(--rhythm);
  padding-left: max(var(--gutter-x), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter-x), env(safe-area-inset-right, 0px));
}

/* ---------- Logo + hello card ---------- */

.hello {
  position: relative;
  z-index: 2; /* card floats over the intro text */
}

.logo-btn {
  display: block;
  padding: 0;
  margin: 0 0 0 -1px; /* lines the C's stroke up optically with the text edge */
  border: 0;
  background: none;
  color: var(--logo);
  cursor: default;
  -webkit-tap-highlight-color: transparent;
  border-radius: 4px;
}
.logo-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 6px;
}

.logo {
  display: block;
  width: 82px;
  height: 52px;
  overflow: visible;
}

/* The wink: the open eye squeezes shut, then the lid drops in from the top. */
.eye-open,
.eye-wink {
  transform-box: fill-box;
}
.eye-open {
  transform-origin: center;
  transition: transform 260ms var(--spring), opacity 120ms ease-out 40ms;
}
.eye-wink {
  transform-origin: center top;
  transform: scaleY(0);
  opacity: 0;
  transition: transform 90ms ease-in, opacity 60ms ease-in;
}
.is-waving .eye-open {
  transform: scaleY(0.1);
  opacity: 0;
  transition: transform 90ms ease-in, opacity 60ms ease-in 30ms;
}
.is-waving .eye-wink {
  transform: scaleY(1);
  opacity: 1;
  transition: transform 220ms var(--spring) 60ms, opacity 80ms ease-out 60ms;
}

/* Video card: a print-like frame that lifts out from under the logo.
   Enter on a gentle spring; exit quickly, sinking and softening as it goes. */
.hello-card {
  position: absolute;
  top: 46px;
  left: 26px;
  width: min(320px, calc(100vw - 2 * var(--gutter-x) - 26px));
  padding: 3px;
  background: var(--white);
  border-radius: 6px;
  box-shadow:
    0 0 0 0.5px rgb(23 27 49 / 0.06),
    0 1px 2px rgb(23 27 49 / 0.08),
    0 4px 8px -2px rgb(23 27 49 / 0.08),
    0 14px 24px -8px rgb(23 27 49 / 0.16),
    0 32px 48px -20px rgb(23 27 49 / 0.22);
  pointer-events: none;
  transform-origin: 20px 0;

  /* resting (hidden) state */
  visibility: hidden;
  opacity: 0;
  transform: translateY(10px) rotate(0deg) scale(0.9);
  filter: blur(6px);
  transition:
    transform 220ms cubic-bezier(0.4, 0, 1, 1),
    opacity 180ms ease-in,
    filter 200ms ease-in,
    visibility 0s linear 220ms;
}
.hello-card video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 3px;
  background: var(--grey-200);
}
.is-waving .hello-card {
  visibility: visible;
  opacity: 1;
  transform: translateY(0) rotate(-2.5deg) scale(1);
  filter: blur(0);
  transition:
    transform 620ms var(--spring) 40ms,
    opacity 200ms ease-out 40ms,
    filter 320ms ease-out 40ms,
    visibility 0s linear 0s;
}

@media (prefers-reduced-motion: reduce) {
  .hello-card,
  .is-waving .hello-card {
    transform: rotate(-2.5deg);
    filter: none;
  }
  .hello-card { transition: opacity 160ms ease-in, visibility 0s linear 160ms; }
  .is-waving .hello-card { transition: opacity 160ms ease-out, visibility 0s; }
  .eye-open, .eye-wink,
  .is-waving .eye-open, .is-waving .eye-wink { transition: none; }
}

/* Intro: one font, one size, one weight. Paragraphs separated by exactly one blank line. */
.intro {
  display: flex;
  flex-direction: column;
  gap: var(--line);
  max-width: 31em; /* 496px */
  min-width: 0;
}
.intro h1,
.intro p {
  margin: 0;
  font: inherit;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.sym { color: var(--grey-300); }

/* Links inside running text: keep the text's own colors. The whole link,
   symbols included, takes the accent on hover. */
.inline-link {
  color: inherit;
  text-decoration: none;
  transition: color 160ms ease;
}
.inline-link .sym { transition: color 160ms ease; }
.inline-link:hover,
.inline-link:hover .sym,
.inline-link:focus-visible,
.inline-link:focus-visible .sym {
  color: var(--accent);
}
/* Keyboard focus only */
.inline-link:focus-visible {
  outline: none;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

/* Nav */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 17px;
  text-transform: uppercase;
}
.nav a {
  color: var(--grey-700);
  text-decoration: none;
  transition: color 160ms ease;
}
.nav a:hover { color: var(--accent); }
.nav a:focus-visible {
  outline: none;
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

/* ---------- Footer ---------- */

/* Full width between the page margins, below the first screen */
.footer {
  position: relative;
  z-index: 0; /* bottom layer: the email note always hangs over the sketch */
  padding-top: 0;
  padding-bottom: var(--rhythm);
  padding-left: max(var(--gutter-x), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter-x), env(safe-area-inset-right, 0px));
}
.footer-sketch {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}

/* As the footer scrolls in, the sketch rises into place (scroll-linked
   where supported; elsewhere it's simply there). */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .footer-sketch {
      animation: sketch-rise linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 100%;
    }
    @keyframes sketch-rise {
      from { opacity: 0; transform: translateY(48px); }
      to   { opacity: 1; transform: none; }
    }
  }
}

/* ---------- Email note ---------- */
/* A grid-paper hang tag on a string from "Email", written by hand.
   It swings in like it was just hung up. */

.nav { position: relative; }

.note {
  --tag-w: 244px;
  --string: 34px;
  position: absolute;
  top: calc(100% + 6px);
  left: var(--note-x, 0px);
  z-index: 3;
  width: var(--tag-w);
  padding-top: var(--string);
  transform-origin: 50% 0;   /* swings from where the string is tied */
  /* shadow on the wrapper so it follows the hole-punched shape */
  filter: drop-shadow(0 1px 1px rgb(23 27 49 / 0.10)) drop-shadow(0 12px 18px rgb(23 27 49 / 0.14));

  /* hidden */
  visibility: hidden;
  opacity: 0;
  transform: rotate(-14deg) translateY(-6px);
  transition:
    transform 220ms cubic-bezier(0.4, 0, 1, 1),
    opacity 180ms ease-in,
    visibility 0s linear 220ms;
}
.note.is-open {
  visibility: visible;
  opacity: 1;
  transform: rotate(2deg);
  transition:
    transform 1500ms var(--swing),
    opacity 160ms ease-out,
    visibility 0s;
}

/* the string: from the nav down to the punched hole */
.note-string {
  position: absolute;
  top: 0;
  left: 50%;
  width: 1px;
  height: calc(var(--string) + 18px);
  background: rgb(23 27 49 / 0.55);
  transform: translateX(-0.5px);
}
.note-string::after { /* the loop through the hole */
  content: "";
  position: absolute;
  left: -4px;
  bottom: -4px;
  width: 8px;
  height: 8px;
  border: 1px solid rgb(23 27 49 / 0.55);
  border-top-color: transparent;
  border-radius: 50%;
}

.note-tag {
  --paper: #F4F1DE;
  --grid: rgb(108 128 104 / 0.22);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 300px;
  padding: 44px 20px 18px;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 14px 14px;
  background-position: -1px -1px;
  border-radius: 2px;
  /* punched hole near the top */
  -webkit-mask: radial-gradient(circle at 50% 18px, transparent 6px, #000 6.5px);
  mask: radial-gradient(circle at 50% 18px, transparent 6px, #000 6.5px);
}

.note-text,
.note-email,
.note-hint {
  font-family: "Reenie Beanie", "Bradley Hand", "Segoe Print", cursive;
  font-weight: 400;
  text-transform: none;
  color: #1E2240; /* pen ink */
}
.note-text {
  margin: 0;
  font-size: 32px;
  line-height: 32px;
  white-space: nowrap;
  transform: rotate(-2deg);
  transform-origin: 0 0;
}
.note-foot {
  margin-top: auto;
  padding-top: 28px;
}
.note-email {
  display: block;
  padding: 0;
  border: 0;
  background: none;
  font-size: 27px;
  line-height: 28px;
  cursor: copy;
  transform: rotate(-1deg);
  transition: color 160ms ease;
}
.note-email:hover,
.note-email:focus-visible { color: var(--accent); }
.note-email:focus-visible {
  outline: none;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.note-hint {
  margin: 4px 0 0;
  font-size: 19px;
  line-height: 20px;
  color: rgb(30 34 64 / 0.55);
}
.note-hint .is-copied { color: var(--accent); }
.nav .note-write {
  color: inherit;
  text-decoration: none;
  transition: color 160ms ease;
}
.nav .note-write:hover,
.nav .note-write:focus-visible { color: var(--accent); }

/* keep "Email" lit while its note is open */
.nav a[aria-expanded="true"] { color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  .note, .note.is-open { transform: rotate(2deg); }
  .note { transition: opacity 160ms ease-in, visibility 0s linear 160ms; }
  .note.is-open { transition: opacity 160ms ease-out, visibility 0s; }
}

/* ---------- Philosophy sheet ---------- */
/* From the Paper "Philosophy Page" frame: frosted panel (Grey100-ish at 80%,
   10px backdrop blur, 40px radius), inset from the top and sides and running
   off the bottom edge. Back at 43/40; content column 676 wide. */

html.sheet-open { overflow: hidden; }

.sheet {
  /* Option B: a thin 24px band of the homepage shows around the sheet */
  --sheet-top: clamp(12px, 2.5vh, 24px);
  --sheet-side: clamp(8px, 1.6vw, 24px);
  /* Shared by the top bar and the rules so the label and rules line up.
     The first column never gets narrower than the Back button; the content
     column gives way instead. */
  --sheet-cols: minmax(72px, 1fr) minmax(0, 676px) minmax(0, 1fr);
  --sheet-col-gap: 32px;

  position: fixed;
  inset: var(--sheet-top) var(--sheet-side) -40px; /* the extra 40px hides below the screen edge */
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0 0 40px;
  border: 0;
  border-radius: 40px 40px 0 0;
  background: rgb(247 247 246 / 0.8);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 3px rgb(0 0 0 / 0.2), 0 24px 64px -24px rgb(23 27 49 / 0.18);
  color: var(--grey-900);
  overflow: hidden;
  display: flex;
  flex-direction: column;

  /* closed */
  transform: translateY(calc(100% + 40px));
  transition: transform 320ms cubic-bezier(0.4, 0, 1, 1);
}
.sheet.is-open {
  transform: translateY(0);
  transition: transform 700ms var(--sheet-spring);
}
.sheet:not([open]) { display: none; }
.sheet:focus, .sheet:focus-visible { outline: none; }
.sheet::backdrop { background: transparent; }

/* The rules scroll under the bar and fade out as they reach it */
.sheet-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--grey-300) transparent;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 28px);
  mask-image: linear-gradient(to bottom, transparent 0, #000 28px);
}

/* Top bar: stays put above the scrolling rules */
.sheet-bar {
  flex: none;
  display: grid;
  grid-template-columns: var(--sheet-cols);
  column-gap: var(--sheet-col-gap);
  align-items: start;
  padding: 40px 43px 12px;
}
.sheet-back {
  grid-column: 1;
  justify-self: start;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  color: var(--grey-700);
  text-transform: uppercase;
  cursor: pointer;
  transition: color 160ms ease;
}
.sheet-back:hover,
.sheet-back:focus-visible { color: var(--accent); }
.sheet-back:focus-visible {
  outline: none;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}
.sheet-label {
  grid-column: 2;
  margin: 0;
  font: inherit;
  color: var(--logo);
  text-transform: uppercase;
}

/* Rules: one box per rule, text left and figure slot right */
.rules {
  list-style: none;
  margin: 0;
  padding: 24px 43px 96px;
  display: grid;
  grid-template-columns: var(--sheet-cols);
  column-gap: var(--sheet-col-gap);
  row-gap: 0;
  text-transform: uppercase;
}
/* Hairline between rules */
.rule { padding-block: 48px; }
.rule:first-child { padding-top: 0; }
.rule + .rule { border-top: 1px solid var(--grey-200); }
.rule {
  grid-column: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 192px;
  justify-content: space-between;
  column-gap: 40px;
  align-items: start;
}
.rule-text { min-width: 0; }
.rule h3 {
  margin: 0 0 16px;
  font-size: 24px;
  line-height: 30px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--grey-900);
  text-wrap: balance;
}
.rule p {
  margin: 0;
  font-size: 14px;
  line-height: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--grey-900);
}

/* Figure slot: reserved space for a future diagram / sketch / ASCII piece */
.rule-figure {
  width: 192px;
  min-height: 151px;
  margin-top: 4px;
}
.rule-figure > * { display: block; max-width: 100%; height: auto; }
.rule-figure pre {
  margin: 0;
  font: 500 13px/16px ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  letter-spacing: 0;
  color: var(--grey-700);
  text-transform: none;
  white-space: pre;
  overflow: visible;
  user-select: none;
}
/* the one focal glyph in each figure */
.ascii .hl { font-weight: inherit; color: var(--logo); }

/* Narrower panels: figure moves below the text so the text keeps its measure */
@media (max-width: 960px) {
  .rule { grid-template-columns: minmax(0, 1fr); row-gap: 20px; }
  .rule-figure { width: auto; min-height: 0; margin: 0; }
  .rule-figure:empty { display: none; }
}

@media (max-width: 720px) {
  .sheet { border-radius: 24px 24px 0 0; }
  .sheet-bar {
    grid-template-columns: 1fr;
    row-gap: 24px;
    padding: 24px 20px 8px;
  }
  .sheet-label { grid-column: 1; }
  .rules { padding: 24px 20px 64px; grid-template-columns: minmax(0, 1fr); }
  .rule { padding-block: 40px; }
  .rule:first-child { padding-top: 0; }
  .rule { grid-column: 1; grid-template-columns: minmax(0, 1fr); row-gap: 20px; }
  .rule h3 { font-size: 20px; line-height: 26px; }
  .rule-figure { width: auto; min-height: 0; margin: 0; }
  .rule-figure:empty { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sheet, .sheet.is-open { transition: opacity 180ms ease; transform: none; }
  .sheet { opacity: 0; }
  .sheet.is-open { opacity: 1; }
}

/* ---------- Portfolio sheet ---------- */
/* From the Paper "Portfolio Page" frame: the left rail takes ~3 of 12
   columns (359 of 1346); the works fill the rest at 1.05:1. */

.sheet--portfolio .pf {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(300px, 359fr) minmax(0, 987fr);
}

.pf-side {
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding: 40px 24px 32px 43px;
  overflow-y: auto;
  scrollbar-width: none;
}
.pf-intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  max-width: 307px;
}
.pf-intro .sheet-label {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 18px;
}
.pf-text {
  margin: 0;
  font-size: 14px;
  line-height: 18px;
  color: var(--grey-900);
  text-transform: uppercase;
}
.pf-illus {
  display: block;
  width: 256px;
  max-width: 100%;
  height: auto;
  margin-top: 40px;
}
/* Right side: the gallery, with the counter fixed underneath it */
.pf-main {
  position: relative;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.pf-main .pf-gallery { flex: 1; }
/* Counter floats in the bottom-right corner of the gallery (the captions
   in the works sit bottom-left), on a small frosted chip so it reads over
   light and dark works alike. */
.pf-count {
  position: absolute;
  /* pinned inside the bottom-right corner of the image (set by portfolio.js) */
  right: var(--count-right, 40px);
  bottom: var(--count-bottom, 16px);
  z-index: 1;
  margin: 0;
  padding: 5px 10px;
  border-radius: 6px;
  background: rgb(247 247 246 / 0.82);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  pointer-events: none;
  font-size: 12px;
  line-height: 16px;
  color: var(--grey-700);
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}
.pf-count-n,
.pf-count-of { color: var(--grey-900); }
.pf-count-title { margin-left: 8px; }

/* Gallery: free scroll, snaps to the nearest work when you let go */
.pf-gallery {
  list-style: none;
  margin: 0;
  padding: 0;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-snap-type: y mandatory;
  scrollbar-width: none;
  outline: none;
}
.pf-gallery::-webkit-scrollbar { display: none; }
/* keyboard focus on the gallery shows on the counter chip */
.pf-main:has(.pf-gallery:focus-visible) .pf-count { box-shadow: 0 0 0 1.5px var(--accent); }
.pf-slide {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 32px 8px 0;
  scroll-snap-align: center;
}
.pf-slide img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 1680 / 1600;
  object-fit: contain;
}

/* Narrower screens: one column; the whole sheet scrolls, works stacked */
@media (max-width: 720px) {
  .sheet--portfolio .pf {
    display: block;
    overflow-y: auto;
    overscroll-behavior: contain;
    scroll-snap-type: y proximity;
    -webkit-mask-image: linear-gradient(to bottom, transparent 0, #000 20px);
    mask-image: linear-gradient(to bottom, transparent 0, #000 20px);
  }
  .pf-side {
    scroll-snap-align: start;
    overflow: visible;
    padding: 24px 20px 8px;
    gap: 32px;
  }
  .pf-illus { width: 180px; margin-top: 24px; }
  .pf-count { display: none; }
  .pf-gallery {
    overflow: visible;
    scroll-snap-type: none;
    padding: 8px 0 48px;
  }
  .pf-slide {
    height: auto;
    padding: 12px 8px;
    scroll-snap-align: center;
  }
  .pf-slide img { width: 100%; max-height: none; }
}

::selection { background: var(--grey-900); color: var(--grey-100); }

@media (max-width: 480px) {
  :root { --rhythm: 40px; }
}