/* ==========================================================================
   Site: tabs, About, Extra. Tokens live in loader.css.
   ========================================================================== */

:root {
  --page: 1120px;
  --gutter: clamp(20px, 4vw, 40px);
  /* Never taller than the window minus the top bar, so the sticky polaroid always fits. */
  --polaroid-w: clamp(220px, min(25vw, (100vh - 170px) * 0.628), 320px);
}

html {
  scroll-behavior: smooth;
}

body {
  font-size: 16px;
  line-height: 1.6;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

.eyebrow {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- Entrance from the landing ---------- */

/* While the landing is up, everything except the polaroid's slot waits below. */
html.is-landing .topbar {
  transform: translateY(-100%);
}

html.is-landing .reveal,
html.is-landing .footer {
  opacity: 0;
  transform: translateY(24px);
}

.topbar {
  transition: transform 800ms var(--ease-out) 350ms;
}

.reveal,
.footer {
  transition:
    opacity 900ms ease calc(450ms + var(--i, 0) * 110ms),
    transform 1100ms var(--ease-out) calc(450ms + var(--i, 0) * 110ms);
}

/* ---------- Top bar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgb(241 235 224 / 0.86);
  -webkit-backdrop-filter: blur(12px);
          backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.topbar__inner {
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.tabs {
  position: relative;
  display: flex;
  gap: clamp(18px, 3vw, 34px);
}

.tabs__link {
  padding: 8px 0;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 200ms ease;
}

.tabs__link:hover,
.tabs__link[aria-current="page"] {
  color: var(--ink);
}

/* Slides under the active tab; positioned by site.js. */
.tabs__indicator {
  position: absolute;
  left: 0;
  bottom: -12px;
  height: 2px;
  width: 0;
  background: var(--ink);
  transition:
    transform 450ms var(--ease-out),
    width 450ms var(--ease-out);
}

@media (max-width: 560px) {
  .wordmark {
    display: none;
  }

  .topbar__inner {
    justify-content: center;
  }
}

/* ---------- Views ---------- */

.main {
  max-width: var(--page);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 72px) var(--gutter) 96px;
  outline: none;
}

.view[hidden] {
  display: none;
}

.view.is-switching {
  animation: view-in 600ms var(--ease-out) both;
}

@keyframes view-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}

/* ---------- About: hero ---------- */

.about-hero {
  display: grid;
  grid-template-columns: var(--polaroid-w) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: start;
}

/* Reserves the card's footprint so the page doesn't shift when it lands. */
/* The polaroid stays in view beside the bio and resume all the way down. */
.about-hero__photo {
  position: sticky;
  top: calc(65px + 40px);
  width: var(--polaroid-w);
  aspect-ratio: 54 / 86;
}

/* Sticky gives the slot its own layer; lift it only while the polaroid flies in
   over the landing, so it never covers the top bar when the column scrolls away. */
.about-hero__photo:has(.is-flying) {
  z-index: 50;
}

/* Bio and resume share this column at one reading width. */
.about-hero__main {
  min-width: 0;
  max-width: 64ch;
}

.polaroid.polaroid--placed {
  --pw: var(--polaroid-w);
  position: relative;
  transform: rotate(-2.5deg);
  box-shadow:
    0 1px 2px rgb(0 0 0 / 0.15),
    0 22px 40px -18px rgb(0 0 0 / 0.45);
  transition:
    box-shadow 1200ms ease,
    transform 500ms var(--ease-out);
}

/* Above the folding mosaic while it flies in. Its flight is a script animation,
   which a CSS transform transition would override, so only the shadow eases here. */
.polaroid.is-flying {
  z-index: 50;
  transition: box-shadow 1200ms ease;
}

.polaroid.polaroid--placed:not(.is-flying):hover {
  transform: rotate(-0.5deg) translateY(-4px);
}

.about-hero__bio {
  padding-top: 6px;
}

.lead {
  margin: 14px 0 22px;
  font-family: var(--serif);
  font-size: clamp(24px, 2.6vw, 32px);
  line-height: 1.3;
  color: var(--ink);
}

.about-hero__bio > p:not(.eyebrow):not(.lead) {
  margin-top: 14px;
  color: var(--ink-soft);
}

/* A name in running text with its logo tucked in front. */
.mention {
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: text-decoration-color 200ms ease;
}

.mention:hover {
  text-decoration-color: currentColor;
}

.bio-meta {
  margin-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.flags,
.socials {
  display: flex;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.flag {
  position: relative;
  width: 34px;
  height: 23px;
  border-radius: 3px;
  overflow: visible;
  box-shadow: 0 0 0 1px var(--line);
  transition: transform 300ms var(--ease-out);
}

.flag img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 3px;
}

.flag:hover,
.flag:focus-visible {
  transform: translateY(-3px) rotate(-6deg);
}

.social {
  position: relative;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--ink);
  transition:
    background-color 250ms ease,
    color 250ms ease,
    transform 300ms var(--ease-out);
}

.social svg {
  width: 18px;
  height: 18px;
}

.social--resume {
  display: flex;
  gap: 7px;
  width: auto;
  padding: 0 16px 0 13px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.social:hover,
.social:focus-visible {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-3px);
}

/* ---------- Tooltips (any element with data-tip) ---------- */

[data-tip] {
  position: relative;
}

[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  z-index: 5;
  padding: 5px 9px;
  border-radius: 6px;
  background: var(--ink);
  color: var(--paper);
  font: 500 12px/1.2 var(--sans);
  letter-spacing: 0.01em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 4px);
  transition:
    opacity 180ms ease,
    transform 250ms var(--ease-out);
}

[data-tip]:hover::after,
[data-tip]:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- Interactive logos ---------- */

/* Tilts toward the cursor (site.js sets --rx/--ry), lifts, and names itself on hover. */
.logo {
  --rx: 0deg;
  --ry: 0deg;
  flex: none;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: #fffdf9;
  box-shadow:
    0 0 0 1px var(--line),
    0 1px 2px rgb(0 0 0 / 0.05);
  transform: perspective(260px) rotateX(var(--rx)) rotateY(var(--ry));
  transition:
    transform 400ms var(--ease-out),
    box-shadow 300ms ease;
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 7px;
  border-radius: inherit;
}

.logo--fill img {
  object-fit: cover;
  padding: 0;
}

/* For marks centered in a wide, mostly empty canvas: crop the empty sides. */
.logo--crop img {
  object-fit: cover;
}

a.logo {
  cursor: pointer;
}

/* Logos sit at the left edge, so their labels open rightward instead of centering. */
.logo[data-tip]::after {
  left: 0;
  transform: translate(0, 4px);
}

.logo[data-tip]:hover::after,
.logo[data-tip]:focus-visible::after {
  transform: translate(0, 0);
}

.logo:hover,
.logo:focus-visible {
  transform: perspective(260px) rotateX(var(--rx)) rotateY(var(--ry)) translateY(-3px) scale(1.06);
  box-shadow:
    0 0 0 1px var(--line),
    0 12px 22px -10px rgb(0 0 0 / 0.35);
  transition-duration: 120ms, 300ms;
}

.logo--inline {
  display: inline-grid;
  width: 1.2em;
  height: 1.2em;
  margin: 0 0.3em 0 0.05em;
  border-radius: 0.28em;
  vertical-align: -0.2em;
}

.logo--inline img {
  padding: 0.12em;
}

.mention:hover .logo--inline {
  transform: translateY(-2px) rotate(-8deg) scale(1.1);
}

/* ---------- Typing (About bio, scripts/typewriter.js) ---------- */

.tw {
  transition: opacity 90ms ease;
}

.tw-hide .tw:not(.is-on) {
  opacity: 0;
}

/* The cursor rides on the last typed character, drawn outside its box so it
   never nudges the text. Before anything is typed it waits at the start. */
.is-caret {
  position: relative;
}

.is-caret::after {
  content: "";
  position: absolute;
  left: calc(100% + 1px);
  top: 0.12em;
  bottom: 0.06em;
  width: 2px;
  background: var(--ink);
  animation: caret-blink 1.05s steps(1) infinite;
}

.tw-hide .tw.is-start:not(.is-on) {
  opacity: 1;
  color: transparent;
}

.is-caret.is-start::after {
  left: -3px;
}

/* Solid while typing, blinking once it stops. */
.is-typing .is-caret::after {
  animation: none;
}

@keyframes caret-blink {
  50% {
    opacity: 0;
  }
}

/* ---------- About: resume ---------- */

.resume {
  margin-top: clamp(56px, 7vw, 88px);
  display: grid;
  gap: clamp(48px, 6vw, 72px);
}

.resume__label {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ink);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.entry {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 22px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.entry__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  flex-wrap: wrap;
}

.entry__title {
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.25;
}

.entry__date {
  font-size: 14px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.entry__org {
  margin-top: 4px;
  font-size: 15px;
}

.entry__org span {
  color: var(--ink-soft);
}

.entry__points {
  margin-top: 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  max-width: 72ch;
}

.entry__points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.entry__points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.78em;
  width: 7px;
  height: 1px;
  background: var(--ink-soft);
}

/* ---------- Skills ---------- */

.skills {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
}

.skills__title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
}

.tools {
  margin-top: 14px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 14px;
  cursor: default;
  transition:
    border-color 250ms ease,
    transform 300ms var(--ease-out);
}

/* The logo is a mask so it can be ink at rest and its brand color on hover. */
.tool::before {
  content: "";
  width: 16px;
  height: 16px;
  background: var(--ink);
  -webkit-mask: var(--icon) center / contain no-repeat;
          mask: var(--icon) center / contain no-repeat;
  transition:
    background-color 250ms ease,
    transform 400ms var(--ease-out);
}

.tool--matlab {
  --icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M2 16.5 8.2 12l3 2.2L16 3.5c1.3 3.8 3.3 9.5 6 13.7-2.4-1.7-4.2-2.6-5.6-1.6-1.5 1-2.2 3.4-3 5.9-1.1-2.6-2-4.6-3.6-5.3-1.6-.7-3.4.1-5.8.3Z'/></svg>");
}

.tool--cad {
  --icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linejoin='round'><path d='M12 2.5 20.5 7v10L12 21.5 3.5 17V7Z'/><path d='M3.5 7 12 11.5 20.5 7M12 11.5v10'/></svg>");
}

.tool--plot {
  --icon: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M3 3v18h18'/><path d='m7 15 4-5 3 3 5-7'/></svg>");
}

.tool:hover,
.tool:focus-visible {
  border-color: var(--brand);
  transform: translateY(-2px);
}

.tool:hover::before,
.tool:focus-visible::before {
  background: var(--brand);
  transform: rotate(-10deg) scale(1.15);
}

@media (max-width: 860px) {
  .skills {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 760px) {
  .about-hero {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  :root {
    --polaroid-w: min(280px, 72vw);
  }

  .about-hero__photo {
    position: static;
  }

  .about-hero__main {
    justify-self: stretch;
    max-width: none;
  }

  .entry {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 16px;
  }

  .entry .logo {
    width: 44px;
    height: 44px;
  }
}

/* ---------- Placeholder tabs ---------- */

.page-title,
.stub__title {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: clamp(44px, 7vw, 76px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.01em;
}

.stub__note {
  margin-top: 18px;
  color: var(--ink-soft);
}

/* ---------- Extra ---------- */

.extra-intro__text {
  max-width: 52ch;
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.45;
  color: var(--ink-soft);
}

.extra-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.card {
  min-width: 0;
  padding: 22px;
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 0 0 1px var(--line);
}

.card--watching {
  grid-column: 1 / -1;
}

/* Spotify and interests share the second row. */
.card--rotation {
  grid-column: span 5;
}

.card--interests {
  grid-column: span 7;
}

@media (max-width: 900px) {
  .card {
    grid-column: 1 / -1 !important;
  }
}

.card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.card__label {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.card__meta {
  margin-left: auto;
  font-size: 13px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

/* Brand marks in card headers wiggle and name themselves. */
.brand {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: #fffdf9;
  box-shadow: 0 0 0 1px var(--line);
  color: var(--ink);
  font-size: 15px;
  transition: transform 400ms var(--ease-out);
}

.brand svg {
  width: 20px;
  height: 20px;
}

.brand--letterboxd svg {
  width: 24px;
}

.brand__mask {
  width: 20px;
  height: 20px;
  background: #1db954;
  -webkit-mask: var(--icon) center / contain no-repeat;
          mask: var(--icon) center / contain no-repeat;
}

.brand:hover,
.brand:focus-visible {
  transform: rotate(-8deg) scale(1.08);
}

/* Letterboxd: a Card swap stack of posters, with the front film's notes beside it */

.watching {
  display: grid;
  /* a definite column, so the stack can measure it and scale down to fit */
  grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
}

.watching__stack,
.watching__info {
  min-width: 0;
}

.watching__stack .csw {
  margin-inline: auto;
}

.watching__info {
  max-width: 60ch;
}

.film-text.is-changing {
  animation: film-in 550ms var(--ease-out) both;
}

@keyframes film-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

.film__date {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.film__title {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.film__year {
  font-size: 0.6em;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ink-soft);
}

.film__rating {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 500;
}

.stars {
  position: relative;
  display: inline-block;
  font-size: 22px;
  letter-spacing: 2px;
  line-height: 1;
  color: rgb(27 25 21 / 0.16);
}

.stars__fill {
  position: absolute;
  inset: 0 auto 0 0;
  overflow: hidden;
  color: #00b847;
  white-space: nowrap;
}

.film__review {
  margin-top: 18px;
  font-family: var(--serif);
  font-style: italic;
  font-size: 20px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 9;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.film__review p + p {
  margin-top: 0.6em;
}

.film__link {
  display: inline-block;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 500;
}

.film-nav {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.film-nav__btn {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  font-size: 16px;
  cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease;
}

.film-nav__btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.film-nav__hint {
  margin-left: 6px;
  font-size: 13px;
  color: var(--ink-soft);
}

@media (max-width: 760px) {
  .watching {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
  }

  .watching__stack {
    width: min(100%, 400px);
  }

  .watching__info {
    justify-self: stretch;
  }

  .film__review {
    font-size: 18px;
  }
}

/* ══ Card swap ════════════════════════════════════════════
   scripts/card-swap.js. A stack in depth; each card's slot arrives as
   --t. Cards are the slab, a title row and a photo with a concentric
   corner. No shadows: depth is the stack and a hairline edge */
.csw {
  /* Bencho's tokens, mapped to this site: --fill-on is the ink;
     --fill-slab is the raised white the logo badges sit on, which isn't
     a site-wide token, so it's defined here and goes no further.
     (--t isn't a token: card-swap.js sets it on each card as its slot.) */
  --fill-on: var(--ink);
  --fill-slab: #fffdf9;
  position: relative;
  user-select: none;
  -webkit-user-select: none;}

.csw-stage {
  position: absolute;
  left: 30px;
  bottom: 24px;
  /* flat, so paint order is the z-index: a card sent back goes behind
     at once. The origin is the block's middle, where it was on .csw
     (card-swap.js recomputes it, and left/bottom, for the poster size) */
  perspective: 1000px;
  perspective-origin: 150px 95px;}

/* a card is a photo in a thin slab frame, its corner concentric
   with the photo's, and a solid label pill in the corner */
.csw-card {
  position: absolute;
  inset: 0;
  padding: 3px;
  border-radius: 20px;
  background: var(--fill-slab, #fff);
  color: var(--fill-on, #17181a);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--fill-on, #17181a) 12%, transparent);
  transform: var(--t);
  /* opacity: cards past the visible depth wait unseen and fade in as they come up */
  transition:
    transform 600ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 450ms ease;
  backface-visibility: hidden;}

.csw-card[data-hidden] { opacity: 0; pointer-events: none; }

.csw-card[data-front] { cursor: grab; touch-action: none; }

.csw-card[data-front]:active { cursor: grabbing; }

.csw-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 17px;
  pointer-events: none;}

.csw-tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--fill-slab, #fff);
  font-size: 13px;
  font-weight: 500;
  pointer-events: none;}

@media (prefers-reduced-motion: reduce) {
  .csw-card {
    transition: none;
  }
}

/* Spotify */

.rotation__player {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 12px;
}

/* Interests */

.interests {
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.interest {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: 10px;
  transition: background-color 200ms ease;
}

.interest:hover {
  background: rgb(27 25 21 / 0.04);
}

.interest__emoji {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: #fffdf9;
  box-shadow: 0 0 0 1px var(--line);
  font-size: 20px;
  transition: transform 400ms var(--ease-out);
}

.interest:hover .interest__emoji {
  transform: rotate(-10deg) scale(1.12);
}

.interest__name {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.3;
}

.interest__note {
  font-size: 13px;
  line-height: 1.35;
  color: var(--ink-soft);
}

@media (max-width: 420px) {
  .interests {
    grid-template-columns: 1fr;
  }
}

/* ---------- Engineering: a parts list on a blueprint (scripts/engineering.js) ---------- */

/* The sheet: blueprint blue under an 80px grid with 16px subdivisions,
   inside a ruled drawing border. */
.bp {
  --bp: #1d4a85;
  --bp-deep: #143563;
  --bp-ink: rgb(234 242 255 / 0.94);
  --bp-soft: rgb(234 242 255 / 0.55);
  --bp-faint: rgb(234 242 255 / 0.2);
  --bp-amber: #f5c86a;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  position: relative;
  padding: clamp(22px, 3.4vw, 40px);
  border-radius: 6px;
  background-color: var(--bp);
  background-image:
    linear-gradient(rgb(234 242 255 / 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgb(234 242 255 / 0.12) 1px, transparent 1px),
    linear-gradient(rgb(234 242 255 / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgb(234 242 255 / 0.05) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 16px 16px, 16px 16px;
  color: var(--bp-ink);
  font-family: var(--mono);
  box-shadow:
    inset 0 0 120px rgb(5 15 35 / 0.4),
    0 30px 60px -32px rgb(10 30 60 / 0.6);
}

/* Paper grain. */
.bp::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0.2;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  pointer-events: none;
}

.bp::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1.5px solid var(--bp-soft);
  border-radius: 2px;
  pointer-events: none;
}

.bp > * {
  position: relative;
}

.bp-defs {
  position: absolute;
}

.bp-defs path {
  fill: var(--bp-soft);
}

.bp-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px 32px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--bp-ink);
}

.bp-head__label {
  font: 500 15px/1 var(--sans);
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.bp-head__sub {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bp-soft);
}

.bp-titleblock {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 1.5px;
  margin: 0;
  border: 1.5px solid var(--bp-ink);
  background: var(--bp-ink);
}

.bp-titleblock > div {
  padding: 7px 14px 8px;
  background: var(--bp);
}

.bp-titleblock dt {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bp-soft);
}

.bp-titleblock dd {
  margin: 3px 0 0;
  font: 500 15px/1.2 var(--sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Column heads, then one row per project: number, drawing, title, course, date. */
.bp-cols,
.bp-row__head {
  display: grid;
  grid-template-columns: 34px 140px minmax(0, 1fr) 110px 120px 30px;
  gap: 22px;
  align-items: center;
}

.bp-cols {
  padding: 14px 0 10px;
  border-bottom: 1px solid var(--bp-faint);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bp-soft);
}

.bp-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.bp-row {
  border-bottom: 1px dashed rgb(234 242 255 / 0.28);
}

.bp-row__h {
  font: inherit;
}

.bp-row__head {
  position: relative;
  width: 100%;
  padding: 16px 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

/* The highlight runs a little past the columns, like a selection on the sheet. */
.bp-row__head::before {
  content: "";
  position: absolute;
  inset: 4px -14px;
  border-radius: 4px;
  background: rgb(234 242 255 / 0.08);
  opacity: 0;
  transition: opacity 200ms ease;
}

.bp-row__head:hover::before,
.bp-row.is-open .bp-row__head::before {
  opacity: 1;
}

.bp-row__head:focus-visible {
  outline: none;
}

.bp-row__head:focus-visible::before {
  opacity: 1;
  box-shadow: 0 0 0 2px var(--bp-amber);
}

.bp-row__head > * {
  position: relative;
}

.bp-row__no {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--bp-amber);
}

.bp-row__fig {
  aspect-ratio: 420 / 320;
  border: 1px solid var(--bp-faint);
  background: rgb(20 53 99 / 0.35);
  transition:
    border-color 200ms ease,
    background-color 200ms ease;
}

.bp-row__head:hover .bp-row__fig,
.bp-row.is-open .bp-row__fig {
  border-color: var(--bp-soft);
  background: rgb(20 53 99 / 0.6);
}

/* Thicker lines than on a full sheet, so a small drawing still reads. */
.bp-row__fig .bp-l {
  stroke-width: 4;
}

.bp-row__fig :is(.bp-thin, .bp-dim, .bp-center) {
  stroke-width: 2.2;
}

.bp-row__fig .bp-t {
  display: none;
}

.bp-row__title {
  display: block;
  font: 500 clamp(17px, 2vw, 23px)/1.15 var(--sans);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.bp-row__kind {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bp-soft);
}

.bp-row__also {
  display: none;
}

.bp-row__course,
.bp-row__when {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.bp-row__when {
  color: var(--bp-soft);
}

/* A plus that turns to a cross while the row is open. */
.bp-row__toggle {
  width: 30px;
  height: 30px;
  border: 1.5px solid var(--bp-soft);
  border-radius: 50%;
  transition:
    transform 400ms var(--ease-out),
    border-color 200ms ease,
    background-color 200ms ease;
}

.bp-row__toggle::before,
.bp-row__toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 1.5px;
  background: currentColor;
  translate: -50% -50%;
}

.bp-row__toggle::after {
  rotate: 90deg;
}

.bp-row__head:hover .bp-row__toggle {
  border-color: var(--bp-ink);
}

.bp-row.is-open .bp-row__toggle {
  transform: rotate(45deg);
  border-color: var(--bp-amber);
  background: var(--bp-amber);
  color: var(--bp-deep);
}

/* The write-up slides open under its row, as a printed data sheet on the blueprint. */
.bp-detail {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 550ms var(--ease-out);
}

.bp-row.is-open .bp-detail {
  grid-template-rows: 1fr;
}

.bp-list.is-instant .bp-detail {
  transition: none;
}

.bp-detail__clip {
  min-height: 0;
  overflow: hidden;
}

.bp-sheet {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 22px 32px;
  margin: 6px 0 24px;
  padding: clamp(18px, 3vw, 30px);
  border-radius: 4px;
  background: var(--card);
  color: var(--ink);
  font-family: var(--sans);
  box-shadow: 0 24px 50px -24px rgb(0 0 0 / 0.65);
}

.bp-sheet .sheet {
  transform: rotate(-2deg);
}

.bp-sheet > .meter {
  grid-column: 1 / -1;
  margin: 8px 0 0;
}

.bp-sheet .readouts {
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

/* Line drawings, shared with the Wii channel's thumbnails. Arrowheads come from
   the #bp-arrow marker at the top of the sheet. */
.bp-drawing {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.bp-l {
  fill: none;
  stroke: var(--bp-ink);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.bp-thin,
.bp-dim {
  fill: none;
  stroke: var(--bp-soft);
  stroke-width: 1.1;
}

.bp-hidden {
  stroke-dasharray: 6 5;
}

.bp-center {
  fill: none;
  stroke: var(--bp-soft);
  stroke-width: 1;
  stroke-dasharray: 16 5 3 5;
}

.bp-band {
  stroke: var(--bp-amber);
  stroke-width: 2.4;
}

.bp-t {
  fill: var(--bp-ink);
  font-family: var(--mono);
  letter-spacing: 0.06em;
}

/* First look: the drawings plot in a pen stroke at a time, row after row, then
   the construction lines fade up. Pointing at a row plots its drawing again. */
.bp-list.is-plotting .bp-l,
.bp-row__fig.is-replot .bp-l {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: plot 1400ms cubic-bezier(0.45, 0, 0.2, 1) forwards;
  animation-delay: calc(var(--d) * 1ms);
}

.bp-row__fig.is-replot .bp-l {
  animation-duration: 900ms;
  animation-delay: 0ms;
}

.bp-list.is-plotting :is(.bp-thin, .bp-center, .bp-dim) {
  opacity: 0;
  animation: bp-fade 600ms ease forwards;
  animation-delay: calc((var(--d) + 800) * 1ms);
}

@keyframes plot {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes bp-fade {
  to {
    opacity: 1;
  }
}

.bp-note {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bp-soft);
}

/* Narrow screens: the number sits over the title, course and date move under
   it, and the write-up stacks. */
@media (max-width: 760px) {
  .bp {
    padding: 22px 18px;
  }

  .bp-cols {
    display: none;
  }

  .bp-head {
    padding-bottom: 16px;
  }

  .bp-titleblock {
    grid-template-columns: repeat(2, auto);
  }

  .bp-row__head {
    grid-template-columns: 76px minmax(0, 1fr) 26px;
    grid-template-areas:
      "fig no toggle"
      "fig main toggle";
    gap: 4px 14px;
    padding: 14px 0;
  }

  .bp-row__no {
    grid-area: no;
    align-self: end;
    font-size: 12px;
  }

  .bp-row__fig {
    grid-area: fig;
  }

  .bp-row__main {
    grid-area: main;
    align-self: start;
  }

  .bp-row__toggle {
    grid-area: toggle;
    width: 26px;
    height: 26px;
  }

  .bp-row__title {
    font-size: 16px;
    letter-spacing: 0.03em;
  }

  .bp-row__kind,
  .bp-row__also {
    font-size: 11px;
    letter-spacing: 0.08em;
  }

  .bp-row__course,
  .bp-row__when {
    display: none;
  }

  .bp-row__also {
    display: block;
    margin-top: 3px;
    color: var(--bp-soft);
    text-transform: uppercase;
  }

  .bp-sheet {
    grid-template-columns: minmax(0, 1fr);
  }

  .bp-sheet .eng-detail__lead {
    font-size: 18px;
  }

  .bp-sheet__aside {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
  }

  .bp-sheet__aside .doc-btns {
    margin-top: 0;
  }
}

/* Write-up pieces, in each row's data sheet. */
.doc-btns {
  margin-top: 22px;
  display: grid;
  gap: 8px;
}

.doc-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font: 500 14px/1.2 var(--sans);
  text-align: left;
  cursor: pointer;
  transition:
    background-color 200ms ease,
    color 200ms ease;
}

.doc-btn svg {
  flex: none;
  width: 16px;
  height: 16px;
}

.doc-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.eng-detail__context {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.eng-detail__text {
  margin-top: 14px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.65;
}

.eng-detail__lead {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.45;
}

.eng-detail__team {
  margin-top: 16px;
  font-size: 14px;
  color: var(--ink-soft);
}

.eng-detail__team span {
  margin-right: 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}

/* Spec readouts, in a ruled grid like a data sheet. */
.readouts {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.readout {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: 6px;
  padding: 14px 16px;
  background: var(--card);
}

.readout dt {
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink-soft);
}

.readout dd {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(26px, 3vw, 34px);
  white-space: nowrap;
  line-height: 1;
  font-variant-numeric: lining-nums tabular-nums;
}

.chips {
  margin-top: 20px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  transition: border-color 200ms ease;
}

.chip:hover {
  border-color: var(--ink);
}

/* A report cover: the document's first page, or a drawn one. */
.sheet {
  padding: 7px;
  background: #fffdf9;
  box-shadow:
    0 0 0 1px var(--line),
    0 18px 34px -18px rgb(0 0 0 / 0.5);
}

.sheet__img {
  width: 100%;
}

.sheet__drawn {
  position: relative;
  display: flex;
  flex-direction: column;
  aspect-ratio: 1000 / 1294;
  padding: 12% 10% 0;
  border: 1px solid var(--ink);
  background-image:
    linear-gradient(rgb(27 25 21 / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgb(27 25 21 / 0.05) 1px, transparent 1px);
  background-size: 12px 12px;
  container-type: inline-size;
}

.sheet__course {
  font: 500 6cqi/1 ui-monospace, "SF Mono", Menlo, monospace;
  letter-spacing: 0.08em;
}

.sheet__title {
  margin-top: 8cqi;
  font-family: var(--serif);
  font-size: 11cqi;
  line-height: 1.1;
}

.sheet__context {
  margin-top: 5cqi;
  font-size: 5cqi;
  line-height: 1.35;
  color: var(--ink-soft);
}

.sheet__block {
  position: absolute;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 1px;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
  background: var(--ink);
}

.sheet__block div {
  padding: 2.5cqi 3.5cqi;
  background: #fffdf9;
}

.sheet__block dt {
  font-size: 3.4cqi;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.sheet__block dd {
  margin: 0;
  font-size: 4.6cqi;
  font-weight: 500;
}

/* Document viewer (scripts/viewer.js): PDFs drawn onto paper sheets in the
   site's own frame, instead of the browser's PDF reader. */
.viewer {
  width: min(1040px, 94vw);
  height: min(92vh, 1000px);
  max-width: none;
  max-height: none;
  margin: auto; /* the global reset zeroes margins, which un-centers dialogs */
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 16px;
  background: var(--card);
  color: var(--ink);
  box-shadow: 0 40px 100px -30px rgb(0 0 0 / 0.55);
}

.viewer[open] {
  display: flex;
  flex-direction: column;
  animation: viewer-in 460ms var(--ease-out);
}

@keyframes viewer-in {
  from {
    opacity: 0;
    transform: translateY(22px) scale(0.98);
  }
}

.viewer::backdrop {
  background: rgb(27 25 21 / 0.55);
  -webkit-backdrop-filter: blur(4px);
          backdrop-filter: blur(4px);
}

.viewer__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px 12px 22px;
}

.viewer__label {
  flex: 1;
  min-width: 0;
}

.viewer__title {
  overflow: hidden;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.2;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.viewer__meta {
  min-height: 1.4em;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.viewer__tools {
  display: flex;
  align-items: center;
  padding: 2px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.viewer__tools button {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--ink);
  font: 400 18px/1 var(--sans);
  cursor: pointer;
  transition: background-color 150ms ease;
}

.viewer__tools .viewer__zoom {
  width: auto;
  min-width: 54px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.viewer__tools button:hover {
  background: rgb(27 25 21 / 0.07);
}

.viewer__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition:
    background-color 200ms ease,
    color 200ms ease;
}

.viewer__icon svg {
  width: 18px;
  height: 18px;
}

.viewer__icon:hover {
  background: var(--ink);
  color: var(--paper);
}

/* The download label opens below, inside the dialog, not above it. */
.viewer__icon[data-tip]::after {
  top: calc(100% + 8px);
  bottom: auto;
}

.viewer__open {
  padding: 0 6px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

/* A hairline under the header that fills as the file downloads. */
.viewer__progress {
  position: relative;
  height: 1px;
  background: var(--line);
}

.viewer__progress::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: calc(var(--p, 0) * 100%);
  height: 2px;
  background: var(--ink);
  transition:
    width 200ms ease,
    opacity 500ms ease 200ms;
}

.viewer.is-loaded .viewer__progress::after {
  opacity: 0;
}

.viewer__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
  padding: 36px 24px 72px;
  overflow: auto;
  overscroll-behavior: contain;
  outline: none;
  background:
    radial-gradient(ellipse at 50% 0%, rgb(255 255 255 / 0.35), transparent 60%),
    #e6dfd2;
}

/* A sheet holds its place (and shows faint ruled lines) until it's drawn. */
.viewer__page {
  position: relative;
  flex: none;
  max-width: none;
  background:
    repeating-linear-gradient(to bottom, transparent 0 22px, rgb(27 25 21 / 0.035) 22px 23px) 0 9% / 100% 82% no-repeat,
    #fffdf9;
  box-shadow:
    0 0 0 1px rgb(27 25 21 / 0.06),
    0 22px 44px -24px rgb(27 25 21 / 0.5);
}

.viewer__page canvas {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 350ms ease;
}

.viewer__page.is-drawn canvas {
  opacity: 1;
}

.viewer__num {
  position: absolute;
  left: 50%;
  top: calc(100% + 12px);
  translate: -50% 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

/* Embedded pages (Drive's viewer, videos) fill the frame edge to edge. */
.viewer.is-frame .viewer__body {
  display: block;
  padding: 0;
  background: #fff;
}

.viewer__frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.viewer.is-frame .viewer__tools,
.viewer.is-frame #viewer-download {
  display: none;
}

@media (max-width: 760px) {
  .viewer {
    width: 100vw;
    height: 100dvh;
    margin: 0;
    border-radius: 0;
  }

  .viewer__head {
    padding: 10px 10px 10px 16px;
  }

  .viewer__open {
    display: none;
  }

  .viewer__body {
    gap: 32px;
    padding: 20px 12px 56px;
  }
}

/* The light meter: a little device beside its controls. */
.meter {
  margin: 0 12px 40px 72px;
  padding: 22px;
  border-radius: 14px;
  background: var(--card);
  box-shadow: 0 0 0 1px var(--line);
}

.meter__title {
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
}

.meter__note {
  margin-top: 2px;
  font-size: 14px;
  color: var(--ink-soft);
}

.meter__body {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.meter__device {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 20px;
  background: linear-gradient(#2a2824, #1d1b18);
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 0.08),
    0 18px 32px -18px rgb(0 0 0 / 0.7);
}

.meter__gauge {
  position: relative;
  padding: 8px 8px 2px;
  border-radius: 10px;
  background: #f4efe4;
}

.meter__gauge svg {
  display: block;
  width: 100%;
}

.meter__arc {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.2;
}

.meter__tick {
  stroke: var(--ink);
  stroke-width: 1.2;
}

.meter__label {
  font: 500 13px var(--sans);
  fill: var(--ink);
  text-anchor: middle;
}

/* The servo: it swings with a little overshoot, then settles. */
.meter__needle {
  stroke: #b2361c;
  stroke-width: 2.5;
  stroke-linecap: round;
  transform-box: view-box;
  transform-origin: 100px 100px;
  transform: rotate(var(--a, 0deg));
  transition: transform 650ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.meter__pivot {
  fill: var(--ink);
}

.meter__led {
  --led: #3ddc84;
  position: absolute;
  top: 10px;
  right: 12px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--led);
  box-shadow: 0 0 10px 2px var(--led);
  transition:
    background-color 300ms ease,
    box-shadow 300ms ease;
}

.meter__led[data-state="under"] {
  --led: #4aa3ff;
}

.meter__led[data-state="over"] {
  --led: #ff5a4a;
}

.meter__screen {
  padding: 12px 14px;
  border-radius: 8px;
  background: #0a0b0b;
  color: #e9f6ff;
  font: 13px/1.5 ui-monospace, "SF Mono", Menlo, monospace;
}

.meter__speed {
  font-size: 30px;
  line-height: 1.2;
}

.meter__settings,
.meter__status {
  color: rgb(233 246 255 / 0.65);
}

.meter__controls {
  display: grid;
  gap: 20px;
}

.meter__control {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  align-items: center;
  gap: 4px 14px;
}

.meter__control output {
  grid-column: 2;
  font-size: 13px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.meter__name {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.meter__name small {
  margin-left: 6px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-soft);
}

.meter__control input[type="range"] {
  width: 100%;
  accent-color: var(--ink);
}

.meter__iso {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  border: 0;
}

.meter__iso legend {
  margin-bottom: 8px;
  padding: 0;
}

.meter__iso-opt input {
  position: absolute;
  opacity: 0;
}

.meter__iso-opt span {
  display: inline-block;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition:
    background-color 150ms ease,
    color 150ms ease;
}

.meter__iso-opt input:checked + span {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.meter__iso-opt input:focus-visible + span {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

@media (max-width: 760px) {
  .meter {
    margin: 0 0 32px;
    padding: 18px;
  }

  .meter__body {
    grid-template-columns: minmax(0, 1fr);
  }

  .meter__device {
    width: min(100%, 320px);
    justify-self: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .meter__needle,
  .bp-detail,
  .bp-row__toggle {
    transition: none;
  }

  .viewer[open] {
    animation: none;
  }
}

/* ---------- Film ---------- */

/* The reel runs edge to edge; clip keeps that from adding a sideways scroll. */
.site {
  overflow-x: clip;
}

.film-head {
  display: flex;
  justify-content: flex-end;
}

.film-head__count {
  font-family: var(--serif);
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1;
  font-variant-numeric: lining-nums tabular-nums;
  white-space: nowrap;
}

.film-head__of {
  font-size: 0.4em;
  color: var(--ink-soft);
}

/* The reel spans the whole window so the neighbouring films can peek in. */
.reel {
  position: relative;
  width: 100vw;
  margin: 28px calc(50% - 50vw) 0;
}

/* A film is as tall as the window allows once the bar and counter above it are
   counted (short screens: phones on their side, unfolded foldables). svh is
   the height with the browser's toolbars showing. */
.reel__track {
  --h: clamp(220px, min(62vh, 100svh - 300px), 620px);
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  padding-block: 44px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  cursor: grab;
}

.reel__track::-webkit-scrollbar {
  display: none;
}

.reel__track.is-dragging {
  scroll-snap-type: none;
  cursor: grabbing;
  user-select: none;
}

@media (max-height: 560px) {
  .film-head__count {
    font-size: 40px;
  }

  .reel {
    margin-top: 8px;
  }

  .reel__track {
    --h: clamp(200px, 100svh - 250px, 620px);
    padding-block: 22px;
  }
}

/* --d is 0 for the film in front, 1 a full step away: the further out, the
   smaller, fainter, and more black-and-white. Set by film.js as you scroll. */
.slide {
  --d: 0;
  flex: none;
  width: min(86vw, calc(var(--h) * var(--ar)));
  aspect-ratio: var(--ar);
  scroll-snap-align: center;
  scroll-snap-stop: always;
  transform: scale(calc(1 - var(--d) * 0.14));
  opacity: calc(1 - var(--d) * 0.5);
  filter: grayscale(calc(var(--d) * 100%));
}

.screen {
  position: relative;
  height: 100%;
}

/* Ambient light: the film's own colors, blurred, spilling out behind it. */
.screen__glow {
  position: absolute;
  inset: 8% 4%;
  overflow: hidden;
  border-radius: 40px;
  background: #2a2520;
  filter: blur(48px) saturate(1.5);
  opacity: 0;
  transform: scale(1.1);
  transition: opacity 800ms ease;
  pointer-events: none;
}

.slide.is-active .screen__glow {
  opacity: 0.6;
}

.screen__glow img,
.screen__glow canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.screen__glow canvas {
  opacity: 0;
  transition: opacity 600ms ease;
}

.slide.is-playing .screen__glow canvas {
  opacity: 1;
}

.screen__frame {
  position: relative;
  height: 100%;
  overflow: hidden;
  border-radius: 8px;
  background: #0b0a09;
  box-shadow: 0 30px 60px -30px rgb(0 0 0 / 0.75);
}

.screen__poster,
.screen__video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  user-select: none;
}

.screen__video {
  object-fit: contain;
  background: #000;
}

.screen__embed {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}

.screen__play {
  position: absolute;
  left: 50%;
  top: 50%;
  display: grid;
  place-items: center;
  width: 76px;
  height: 76px;
  translate: -50% -50%;
  border: 0;
  border-radius: 50%;
  background: rgb(251 250 245 / 0.92);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 12px 30px -10px rgb(0 0 0 / 0.55);
  transition:
    scale 300ms var(--ease-out),
    opacity 300ms ease;
}

.screen__play svg {
  width: 30px;
  height: 30px;
  margin-left: 4px;
}

.screen__play:hover {
  scale: 1.08;
}

.titlecard ~ .screen__play {
  top: 74%;
}

/* A slow ring that breathes out from the play button on the film in front. */
.slide.is-active:not(.is-playing) .screen__play::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1.5px solid rgb(251 250 245 / 0.8);
  animation: ring 2.4s ease-out infinite;
}

@keyframes ring {
  from {
    transform: scale(1);
    opacity: 1;
  }
  to {
    transform: scale(1.6);
    opacity: 0;
  }
}

.slide:not(.is-active) .screen__play,
.slide.is-playing .screen__play {
  opacity: 0;
  pointer-events: none;
}

/* An opening title card for films without a still yet. */
.titlecard {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4cqi;
  padding: 10% 10% 30%; /* sits high, leaving room for the play button below */
  container-type: inline-size;
  background: radial-gradient(ellipse at 50% 42%, #2c2723, #0b0a09 72%);
  color: #f4efe4;
  text-align: center;
}

.titlecard::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.18;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  pointer-events: none;
}

.titlecard__client {
  font-size: max(11px, 4.4cqi);
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  opacity: 0.7;
}

.titlecard__title {
  font-family: var(--serif);
  font-size: 30cqi;
  line-height: 0.9;
}

.titlecard__by {
  font-size: max(11px, 4cqi);
  opacity: 0.7;
}

/* Player for films hosted on the site. */
.player {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgb(11 10 9 / 0.62);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  color: #f4efe4;
  opacity: 0;
  translate: 0 8px;
  transition:
    opacity 250ms ease,
    translate 300ms var(--ease-out);
}

.slide.is-playing .player {
  opacity: 1;
  translate: 0 0;
}

.slide.is-playing.is-idle .player {
  opacity: 0;
}

.slide.is-playing.is-idle {
  cursor: none;
}

.player__btn {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 50%;
  background: none;
  color: inherit;
  cursor: pointer;
}

.player__btn svg {
  width: 18px;
  height: 18px;
}

.player__btn:hover {
  background: rgb(244 239 228 / 0.15);
}

.player__tc,
.player__dur {
  font: 12px ui-monospace, "SF Mono", Menlo, monospace;
  font-variant-numeric: tabular-nums;
}

.player__scrub {
  flex: 1;
  min-width: 0;
  accent-color: #f4efe4;
}

.reel__nav {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 48px;
  height: 48px;
  translate: 0 -50%;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgb(241 235 224 / 0.85);
  -webkit-backdrop-filter: blur(8px);
          backdrop-filter: blur(8px);
  color: var(--ink);
  font-size: 18px;
  cursor: pointer;
  transition:
    background-color 200ms ease,
    color 200ms ease,
    opacity 200ms ease;
}

.reel__nav--prev {
  left: max(16px, calc(50vw - 640px));
}

.reel__nav--next {
  right: max(16px, calc(50vw - 640px));
}

.reel__nav:hover:not(:disabled) {
  background: var(--ink);
  color: var(--paper);
}

.reel__nav:disabled {
  opacity: 0.25;
  cursor: default;
}

/* Index of films under the reel: number and title, with a sliding underline. */
.strip {
  position: relative;
  display: flex;
  gap: clamp(20px, 4vw, 40px);
  width: fit-content;
  max-width: 100%;
  margin: 4px auto 0;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
}

.strip__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 2px 12px;
  border: 0;
  background: none;
  color: var(--ink-soft);
  white-space: nowrap;
  cursor: pointer;
  transition: color 200ms ease;
}

.strip__item:hover,
.strip__item[aria-selected="true"] {
  color: var(--ink);
}

.strip__no {
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.strip__title {
  font-family: var(--serif);
  font-size: 20px;
}

.strip__bar {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background: var(--ink);
  transition:
    transform 450ms var(--ease-out),
    width 450ms var(--ease-out);
}

/* Slate: the front film's credits on a clapperboard that claps when it changes. */
.slate {
  margin-top: 40px;
  border: 1px solid var(--ink);
  background: var(--card);
}

.slate__clapper {
  height: 30px;
  border-bottom: 1px solid var(--ink);
  background: repeating-linear-gradient(-55deg, var(--ink) 0 18px, var(--paper) 18px 36px);
  transform-origin: 0 100%;
}

.slate.is-clap .slate__clapper {
  animation: clap 560ms cubic-bezier(0.3, 1.4, 0.6, 1) both;
}

@keyframes clap {
  0% {
    transform: rotate(-9deg);
  }
  55% {
    transform: rotate(0deg);
  }
  72% {
    transform: rotate(-1.4deg);
  }
  100% {
    transform: rotate(0deg);
  }
}

.slate.is-clap .slate__body {
  animation: film-in 550ms var(--ease-out) both;
}

.slate__body {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
}

.slate__main {
  padding: 24px 28px 28px;
  border-right: 1px solid var(--ink);
}

.slate__meta {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.slate__title {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 500;
  line-height: 1;
}

.slate__byline {
  margin-top: 8px;
  font-family: var(--serif);
  font-size: 19px;
  font-style: italic;
  color: var(--ink-soft);
}

.slate__summary {
  margin-top: 16px;
  max-width: 52ch;
  color: var(--ink-soft);
}

.slate__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
}

/* Only as tall as its credits, so the ruling lines never fill empty space. */
.slate__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-self: start;
  gap: 1px;
  margin: 0;
  border-bottom: 1px solid var(--ink);
  background: var(--ink);
}

.slate__grid > div {
  padding: 10px 14px 12px;
  background: var(--card);
}

.slate__wide {
  grid-column: 1 / -1;
}

.slate__grid dt {
  font-size: 9.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.slate__grid dd {
  margin: 3px 0 0;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.25;
}

@media (max-width: 760px) {
  .reel__nav {
    width: 40px;
    height: 40px;
  }

  .slate__body {
    grid-template-columns: minmax(0, 1fr);
  }

  .slate__main {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }
}

/* Writing: a screenplay's title page, in Courier like the real thing. */
.writing {
  margin-top: 88px;
}

.script {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
  padding: 28px 0;
}

.script__page {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  aspect-ratio: 8.5 / 11;
  padding: 26% 10% 10%;
  container-type: inline-size;
  border: 0;
  background: #fffdf9;
  color: var(--ink);
  font-family: "Courier Prime", "Courier New", monospace;
  cursor: pointer;
  box-shadow:
    0 0 0 1px var(--line),
    0 18px 34px -18px rgb(0 0 0 / 0.5);
  transform: rotate(-1.5deg);
  transition: transform 400ms var(--ease-out);
}

.script__page:hover {
  transform: rotate(0deg) translateY(-4px);
}

.script__title {
  font-size: 9cqi;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.script__by {
  margin-top: 9cqi;
  font-size: 5cqi;
}

.script__name {
  margin-top: 3cqi;
  font-size: 5.5cqi;
}

.script__draft {
  position: absolute;
  left: 10%;
  bottom: 8%;
  font-size: 4.5cqi;
}

.script__meta {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.script__heading {
  margin-top: 10px;
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 500;
}

.script__summary {
  margin-top: 12px;
  max-width: 66ch;
  color: var(--ink-soft);
}

.script .doc-btn {
  display: inline-flex;
  margin-top: 20px;
}

@media (max-width: 760px) {
  .script {
    grid-template-columns: minmax(0, 1fr);
  }

  .script__page {
    width: min(240px, 70vw);
  }
}

@media (prefers-reduced-motion: reduce) {
  .slate.is-clap .slate__clapper,
  .slate.is-clap .slate__body,
  .slide.is-active:not(.is-playing) .screen__play::after {
    animation: none;
  }
}

/* ---------- Gallery ---------- */

html.is-intro body {
  overflow: hidden;
}

.gal-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ink);
}

.gal-head__count {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.gal-head__count span {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.gal-head__replay {
  flex: none;
  padding: 0;
  white-space: nowrap;
  border: 0;
  background: none;
  color: var(--ink);
  font: 500 14px/1.4 var(--sans);
  text-decoration: underline;
  text-underline-offset: 0.22em;
  cursor: pointer;
}

.gal-head__replay span {
  display: inline-block;
  transition: transform 500ms var(--ease-out);
}

.gal-head__replay:hover span {
  transform: rotate(-200deg);
}

/* Every photo in an even grid, numbered like a contact sheet. */
.gal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(44%, 210px), 1fr));
  gap: 26px 16px;
  margin-top: 28px;
  padding: 0;
  list-style: none;
}

.frame {
  transition:
    opacity 600ms ease calc(var(--i) * 35ms),
    transform 800ms var(--ease-out) calc(var(--i) * 35ms);
}

.frame.is-held {
  opacity: 0;
  transform: translateY(16px);
}

.frame__btn {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 3px;
  background: #e6dfd2;
  cursor: zoom-in;
}

.frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.04);
  transition:
    opacity 500ms ease,
    transform 700ms var(--ease-out);
}

.frame__img.is-loaded {
  opacity: 1;
  transform: none;
}

.frame__btn:hover .frame__img.is-loaded {
  transform: scale(1.04);
}

.frame__no {
  display: block;
  margin-top: 7px;
  font: 500 11px/1 ui-monospace, "SF Mono", Menlo, monospace;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--ink-soft);
}

@media (max-width: 560px) {
  .gal-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 10px;
  }
}

/* ---------- Passport intro ---------- */

.passport-intro {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: var(--paper);
  cursor: pointer;
  opacity: 0;
  transition: opacity 500ms ease;
}

.passport-intro[hidden] {
  display: none;
}

.passport-intro.is-on {
  opacity: 1;
}

.passport-intro.is-leaving {
  opacity: 0;
  pointer-events: none;
  transition-duration: 900ms;
}

.passport-defs {
  position: absolute;
}

/* Iridescent light drifting behind the passport. */
.aura {
  position: absolute;
  inset: 0;
  opacity: 0.6;
  filter: blur(70px) saturate(1.3);
  pointer-events: none;
}

.aura span {
  position: absolute;
  width: 44vmax;
  height: 44vmax;
  border-radius: 50%;
  mix-blend-mode: multiply;
  animation: drift 9s ease-in-out infinite alternate;
}

.aura span:nth-child(1) {
  left: 12%;
  top: 4%;
  background: radial-gradient(circle, #f2a7c3, transparent 65%);
}

.aura span:nth-child(2) {
  right: 8%;
  top: 26%;
  background: radial-gradient(circle, #9fd3f2, transparent 65%);
  animation-duration: 11s;
  animation-delay: -3s;
}

.aura span:nth-child(3) {
  left: 32%;
  bottom: -12%;
  background: radial-gradient(circle, #f6dd8f, transparent 65%);
  animation-duration: 13s;
}

@keyframes drift {
  to {
    transform: translate(6vmax, -4vmax) scale(1.15);
  }
}

/* Passport booklet proportions (88 × 125 mm), sized to fit an open spread on screen. */
.passport {
  --pw: min(330px, calc((100vw - 32px) / 2), calc(66vh * 0.704));
  --tx: 0deg;
  --ty: 0deg;
  position: relative;
  width: var(--pw);
  aspect-ratio: 88 / 125;
  perspective: 1800px;
  opacity: 0;
  transform: translateY(70px) scale(0.9) rotateX(20deg);
  transition:
    opacity 600ms ease,
    transform 1000ms var(--ease-out);
}

.passport.is-in {
  opacity: 1;
  transform: none;
}

/* translate centers the open spread; transform is the pointer tilt. They ease separately. */
.passport__body {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transform: rotateX(var(--tx)) rotateY(var(--ty));
  transition:
    translate 1100ms cubic-bezier(0.65, 0, 0.35, 1),
    transform 600ms var(--ease-out);
}

.passport.is-open .passport__body {
  translate: 50% 0;
}

/* Each thunk of a stamp presses the whole book down a touch. */
.passport.is-jolt .passport__body {
  animation: jolt 240ms ease-out;
}

@keyframes jolt {
  40% {
    scale: 0.982;
  }
}

.passport__page,
.passport__front {
  position: absolute;
  inset: 0;
  overflow: hidden;
  container-type: inline-size;
  backface-visibility: hidden;
}

/* Security-paper guilloche, faint. */
.passport__page {
  color: var(--ink);
  background:
    repeating-radial-gradient(circle at 20% 115%, transparent 0 7px, rgb(47 107 79 / 0.06) 7px 8px),
    repeating-radial-gradient(circle at 90% -10%, transparent 0 9px, rgb(91 61 122 / 0.05) 9px 10px),
    #f5efe2;
}

.passport__visa {
  border-radius: 3px 10px 10px 3px;
  box-shadow:
    inset 10px 0 16px -12px rgb(0 0 0 / 0.35),
    0 34px 70px -30px rgb(0 0 0 / 0.55);
}

.passport__cover {
  position: absolute;
  inset: 0;
  transform-origin: left center;
  transform-style: preserve-3d;
  transition: transform 1100ms cubic-bezier(0.65, 0, 0.35, 1);
}

.passport.is-open .passport__cover {
  transform: rotateY(-180deg);
}

.passport__front {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6cqi;
  border-radius: 3px 10px 10px 3px;
  background: radial-gradient(ellipse at 30% 20%, #2c3c60, #172038 72%);
  box-shadow:
    inset 0 0 0 1px rgb(255 255 255 / 0.04),
    0 34px 70px -30px rgb(0 0 0 / 0.6);
}

/* Leather grain, then a holographic sheen that sweeps in and follows the pointer. */
.passport__front::before,
.passport__front::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.passport__front::before {
  opacity: 0.35;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='1.3' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

.passport__front::after {
  background: linear-gradient(105deg, transparent 32%, rgb(255 140 200 / 0.24) 44%, rgb(130 220 255 / 0.24) 51%, rgb(255 240 160 / 0.24) 58%, transparent 70%);
  background-size: 260% 100%;
  background-position: var(--sheen, 110%) 0;
  mix-blend-mode: screen;
  transition: background-position 500ms var(--ease-out);
  animation: sheen 1800ms ease-in-out 400ms;
}

@keyframes sheen {
  from {
    background-position: 150% 0;
  }
  to {
    background-position: -50% 0;
  }
}

/* Gold foil. */
.cover__word,
.cover__name {
  background: linear-gradient(180deg, #f6e2a6, #c69a4a 55%, #ead08a);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  text-transform: uppercase;
}

.cover__word {
  font-family: var(--serif);
  font-size: 11cqi;
  letter-spacing: 0.26em;
  text-indent: 0.26em;
}

.cover__word--small {
  font-family: var(--sans);
  font-size: 4.6cqi;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
}

.cover__emblem {
  width: 44cqi;
  fill: none;
  stroke: #d2ae63;
  stroke-width: 1.3;
}

.cover__name {
  position: absolute;
  bottom: 9%;
  font-size: 4cqi;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-indent: 0.32em;
}

/* Identity page: the back of the cover, which lands on the left. */
.passport__id {
  transform: rotateY(180deg);
  border-radius: 10px 3px 3px 10px;
  box-shadow: inset -10px 0 16px -12px rgb(0 0 0 / 0.35);
}

.passport__pagehead {
  display: flex;
  justify-content: space-between;
  padding: 6% 7% 0;
  font: 500 3.4cqi/1 var(--sans);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgb(27 25 21 / 0.5);
}

.id-main {
  display: grid;
  grid-template-columns: 38% minmax(0, 1fr);
  gap: 6%;
  padding: 8% 7% 0;
}

/* The scan is cropped to the photo inside its Instax border (see PROFILE_PHOTO). */
.id-photo {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1078 / 1490;
  border-radius: 2px;
  box-shadow: 0 0 0 1px rgb(0 0 0 / 0.1);
}

.id-photo img {
  position: absolute;
  left: -9.09%;
  top: -11.27%;
  width: 119.1%;
  max-width: none;
  filter: grayscale(0.2) contrast(1.05);
}

.id-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(125deg, transparent 30%, rgb(255 140 200 / 0.25), rgb(130 220 255 / 0.25), transparent 70%);
  mix-blend-mode: screen;
}

.id-fields {
  display: grid;
  align-content: start;
  gap: 3cqi;
  margin: 0;
}

.id-fields dt {
  font-size: 2.8cqi;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.id-fields dd {
  margin: 0.6cqi 0 0;
  font: 500 4.4cqi/1.15 var(--sans);
}

.id-sign {
  padding: 5% 9% 0;
  font-family: "Alex Brush", cursive;
  font-size: 10cqi;
  color: #1f2f55;
  transform: rotate(-4deg);
}

.id-mrz {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 5%;
  padding: 0 7%;
  overflow: hidden;
  font: 3.7cqi/1.55 "Courier Prime", "Courier New", monospace;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: rgb(27 25 21 / 0.75);
}

/* Photos as postage stamps, with perforated edges. */
.pstamp {
  position: absolute;
  opacity: 0;
  filter: drop-shadow(0 5px 7px rgb(0 0 0 / 0.2));
  transform: rotate(var(--r)) scale(1.6);
}

.pstamp.is-down {
  animation: thunk 440ms cubic-bezier(0.2, 0.9, 0.3, 1.2) forwards;
}

@keyframes thunk {
  0% {
    opacity: 0;
    transform: rotate(calc(var(--r) + 9deg)) scale(1.7);
  }
  60% {
    opacity: 1;
    transform: rotate(var(--r)) scale(0.96);
  }
  100% {
    opacity: 1;
    transform: rotate(var(--r)) scale(1);
  }
}

.pstamp__paper {
  --hole: 1.25cqi;
  position: relative;
  padding: calc(2 * var(--hole));
  background: #fffdf8;
  -webkit-mask:
    radial-gradient(var(--hole), #0000 98%, #000) round calc(-1.5 * var(--hole)) calc(-1.5 * var(--hole)) / calc(3 * var(--hole)) calc(3 * var(--hole)),
    linear-gradient(#000 0 0) no-repeat 50% / calc(100% - 3 * var(--hole)) calc(100% - 3 * var(--hole));
          mask:
    radial-gradient(var(--hole), #0000 98%, #000) round calc(-1.5 * var(--hole)) calc(-1.5 * var(--hole)) / calc(3 * var(--hole)) calc(3 * var(--hole)),
    linear-gradient(#000 0 0) no-repeat 50% / calc(100% - 3 * var(--hole)) calc(100% - 3 * var(--hole));
}

.pstamp__paper img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

/* The "postage": 400, the film speed. */
.pstamp__value {
  position: absolute;
  right: calc(2 * var(--hole) + 4%);
  bottom: calc(2 * var(--hole) + 3%);
  font: 500 4.2cqi/1 var(--serif);
  color: #fff;
  text-shadow: 0 1px 4px rgb(0 0 0 / 0.6);
}

/* Rubber-ink postmarks, dated today. */
.postmark {
  position: absolute;
  width: 48%;
  opacity: 0;
  mix-blend-mode: multiply;
  transform: rotate(var(--r)) scale(1.4);
  pointer-events: none;
}

.postmark.is-down {
  animation: ink 340ms cubic-bezier(0.2, 0.9, 0.3, 1) forwards;
}

@keyframes ink {
  0% {
    opacity: 0;
    transform: rotate(var(--r)) scale(1.4);
  }
  55% {
    opacity: 0.92;
    transform: rotate(var(--r)) scale(0.97);
  }
  100% {
    opacity: 0.84;
    transform: rotate(var(--r)) scale(1);
  }
}

.postmark__text {
  fill: currentColor;
  font-family: var(--sans);
  font-weight: 500;
}

.visa-stamp {
  position: absolute;
  left: 22%;
  bottom: 6%;
  display: grid;
  justify-items: center;
  padding: 2.2cqi 5cqi;
  border: 1cqi double #b3392b;
  border-radius: 1.6cqi;
  color: #b3392b;
  font: 500 2.9cqi/1.25 var(--sans);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  filter: url(#ink-rough);
  mix-blend-mode: multiply;
  opacity: 0;
  transform: rotate(-7deg) scale(1.5);
}

.visa-stamp strong {
  font-family: var(--serif);
  font-size: 7.5cqi;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.visa-stamp.is-down {
  animation: ink-box 340ms cubic-bezier(0.2, 0.9, 0.3, 1) forwards;
}

@keyframes ink-box {
  0% {
    opacity: 0;
    transform: rotate(-7deg) scale(1.5);
  }
  60% {
    opacity: 0.92;
    transform: rotate(-7deg) scale(0.97);
  }
  100% {
    opacity: 0.86;
    transform: rotate(-7deg) scale(1);
  }
}

.passport-intro__skip {
  position: absolute;
  left: 50%;
  bottom: 24px;
  translate: -50% 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  opacity: 0;
  animation: skip-in 600ms ease 1600ms forwards;
}

@keyframes skip-in {
  to {
    opacity: 1;
  }
}

/* The stamps on their way down into the grid. */
.flying-stamp {
  position: fixed;
  z-index: 70;
  object-fit: cover;
  border-radius: 3px;
  box-shadow: 0 22px 44px -18px rgb(0 0 0 / 0.5);
  pointer-events: none;
}

/* ---------- Lightbox ---------- */

.lightbox {
  width: 100vw;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgb(20 18 15 / 0.96);
  color: #f4efe4;
}

.lightbox[open] {
  display: grid;
  place-items: center;
  animation: lightbox-in 300ms ease;
}

@keyframes lightbox-in {
  from {
    opacity: 0;
  }
}

.lightbox::backdrop {
  background: transparent;
}

.lightbox__stage {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 64px 84px;
}

.lightbox__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  user-select: none;
  box-shadow: 0 30px 80px -30px #000;
}

.lightbox__count {
  position: absolute;
  left: 24px;
  top: 22px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgb(244 239 228 / 0.7);
  font-variant-numeric: tabular-nums;
}

.lightbox__btn {
  position: absolute;
  width: 46px;
  height: 46px;
  border: 1px solid rgb(244 239 228 / 0.25);
  border-radius: 50%;
  background: rgb(244 239 228 / 0.06);
  color: #f4efe4;
  font-size: 18px;
  cursor: pointer;
  transition: background-color 200ms ease;
}

.lightbox__btn:hover {
  background: rgb(244 239 228 / 0.18);
}

.lightbox__btn--prev {
  left: 20px;
  top: 50%;
  translate: 0 -50%;
}

.lightbox__btn--next {
  right: 20px;
  top: 50%;
  translate: 0 -50%;
}

.lightbox__btn--close {
  right: 20px;
  top: 14px;
  font-size: 22px;
}

/* Phones, and foldables standing half-open like a laptop: the arrows move to
   the bottom, out of the crease and within reach. */
@media (max-width: 560px), (vertical-viewport-segments: 2) {
  .lightbox__stage {
    padding: 60px 12px 84px;
  }

  .lightbox__btn--prev,
  .lightbox__btn--next {
    top: auto;
    bottom: 20px;
    translate: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .frame,
  .frame__img {
    transition: none;
  }

  .lightbox[open] {
    animation: none;
  }
}

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

.footer {
  border-top: 1px solid var(--line);
}

.footer__inner {
  max-width: var(--page);
  margin: 0 auto;
  padding: 28px var(--gutter) 40px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .topbar,
  .reveal,
  .footer,
  .logo,
  .tool,
  .polaroid.polaroid--placed {
    transition: none !important;
  }

  .view.is-switching,
  .film-text.is-changing,
  .is-caret::after {
    animation: none;
  }

  .tw {
    transition: none;
  }
}