@font-face {
  font-family: "MP Humanist";
  font-weight: 400;
  font-display: swap;
  src: url(assets/fonts/mp-humanist-regular.woff2) format("woff2");
}
@font-face {
  font-family: "MP Humanist";
  font-weight: 700;
  font-display: swap;
  src: url(assets/fonts/mp-humanist-bold.woff2) format("woff2");
}
@font-face {
  font-family: "MP Humanist";
  font-weight: 900;
  font-display: swap;
  src: url(assets/fonts/mp-humanist-black.woff2) format("woff2");
}

/* A deep green band holds the title and the controls; the photo and the face pairs sit on cool grey below.
   One accent (the green) marks the picked faces, both on the photo and on the pairs. */
:root {
  --band: #0c3b2d;
  --band-ink: #ffffff;
  --band-ink-2: #b7d2c6;
  --band-line: rgba(255, 255, 255, 0.22);
  --band-fill: rgba(255, 255, 255, 0.1);
  --band-error: #ffb0a4;
  --bg: #e5e9e7;
  --surface: #ffffff;
  --well: #d3d9d6;
  --ink: #111614;
  --ink-2: #4a5450;
  --ink-hint: #5b6560; /* small text: >= 4.5:1 on bg and surface */
  --line: #c6cdc9;
  --line-strong: #9aa49f;
  --accent: #137a4e; /* boxes and tabs; white type on it */
  --accent-ink: #0f6540; /* the accent as text on bg */
  --accent-type: #ffffff;
  --focus: #111614;
  --error: #a8271c;
  --ui: "MP Humanist", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15191a;
    --surface: #1e2423;
    --well: #0d1010;
    --ink: #edf1ef;
    --ink-2: #a4aeaa;
    --ink-hint: #8f9995;
    --line: #2c3331;
    --line-strong: #4a5450;
    --accent: #3cc48a;
    --accent-ink: #3cc48a;
    --accent-type: #0b1a13;
    --focus: #edf1ef;
    --error: #ff9a8a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #15191a;
  --surface: #1e2423;
  --well: #0d1010;
  --ink: #edf1ef;
  --ink-2: #a4aeaa;
  --ink-hint: #8f9995;
  --line: #2c3331;
  --line-strong: #4a5450;
  --accent: #3cc48a;
  --accent-ink: #3cc48a;
  --accent-type: #0b1a13;
  --focus: #edf1ef;
  --error: #ff9a8a;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 15px/1.45 var(--ui);
  font-feature-settings: "kern";
}
button,
input {
  font: inherit;
  color: inherit;
}
figure,
fieldset,
p,
h1,
h2,
ul {
  margin: 0;
}
fieldset {
  padding: 0;
  border: 0;
  min-width: 0;
}
ul {
  padding: 0;
  list-style: none;
}
a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-strong);
}
a:hover {
  text-decoration-color: currentColor;
}
button {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--surface);
  cursor: pointer;
  transition: background-color 0.12s, border-color 0.12s, color 0.12s;
}
button:hover:not(:disabled) {
  border-color: var(--ink);
}
button:disabled {
  cursor: default;
}
:where(button, a, summary):focus-visible,
.pick-button:focus-within,
.seg-option:has(input:focus-visible),
.example:focus-visible,
.overview:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}
.numeric {
  font-variant-numeric: lining-nums tabular-nums;
}

/* ------------------------------------------------------------------ the band */

.band {
  background: var(--band);
  color: var(--band-ink);
}
.band a {
  text-decoration-color: var(--band-line);
}
.band a:hover {
  text-decoration-color: currentColor;
}
.band :where(button, a, summary):focus-visible,
.band .pick-button:focus-within,
.band .seg-option:has(input:focus-visible) {
  outline-color: var(--band-ink);
}
.band-inner {
  max-width: 1360px;
  margin: 0 auto;
  padding: 26px 40px 22px;
}
.band-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
}
h1 {
  font-size: 42px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.site {
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
}
.site .arrow {
  display: inline-block;
  margin-left: 0.2em;
  transition: transform 0.2s;
}
.site:hover .arrow {
  transform: translate(2px, -2px);
}
.lead {
  margin-top: 10px;
  max-width: 760px;
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: -0.008em;
}
.brand {
  margin-top: 4px;
  max-width: 760px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--band-ink-2);
}
.brand a {
  color: var(--band-ink);
}
.notice {
  margin-top: 16px;
  padding: 10px 0;
  border-top: 1px solid var(--band-line);
  border-bottom: 1px solid var(--band-line);
  font-size: 14px;
}

/* the controls: one row on a desk, a stack on a phone */
.deck {
  display: grid;
  grid-template-columns: minmax(280px, 1.3fr) auto auto auto;
  gap: 14px 32px;
  align-items: start;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--band-line);
}
.deck-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  line-height: 19px;
  color: var(--band-ink-2);
}
.pick {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0 12px;
  min-width: 0;
}
.pick .deck-label {
  grid-column: 1 / -1;
}
.pick-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--band-ink);
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.12s;
}
.pick-button:hover {
  background: var(--band-fill);
}
.pick-button input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}
.pick-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--band-ink-2);
  font-size: 13px;
  line-height: 1.35;
}
.pick-thumb {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 50%;
  flex: none;
}
.pick-text {
  min-width: 0;
  overflow-wrap: anywhere;
}
.pick-text strong {
  color: var(--band-ink);
  font-weight: 400;
}

.seg {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--band-ink);
  border-radius: 6px;
}
.seg-option {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  min-height: 36px;
  padding: 0 12px;
  border-radius: 3px;
  cursor: pointer;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  transition: background-color 0.12s, color 0.12s;
}
.seg-option:hover {
  background: var(--band-fill);
}
.seg-option input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}
.seg-option:has(input:checked) {
  background: var(--band-ink);
  color: var(--band);
}

.output {
  min-width: 190px;
}
.output-size {
  display: block;
  font-size: 27px;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -0.01em;
  font-variant-numeric: lining-nums tabular-nums;
}
.output-note {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.35;
  color: var(--band-ink-2);
  font-variant-numeric: tabular-nums;
}
.output-note .plan-error {
  color: var(--band-error);
}

.go {
  display: grid;
  gap: 8px;
  justify-items: end;
  padding-top: 25px; /* level with the controls under their labels */
}
.primary {
  border-color: var(--band-ink);
  background: var(--band-ink);
  color: var(--band);
  font-weight: 700;
}
.primary:hover:not(:disabled) {
  background: #e6f1ec;
  border-color: #e6f1ec;
}
.primary:disabled {
  background: var(--band-fill);
  border-color: transparent;
  color: var(--band-ink-2);
}
.run {
  min-width: 180px;
  min-height: 46px;
  font-size: 16px;
}
.quota {
  grid-column: 1 / -1;
  margin-top: -2px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--band-ink-2);
}

.status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--band-line);
  font-size: 15px;
}
.status[data-state="error"] .status-text strong {
  color: var(--band-error);
}
.status-text strong {
  font-weight: 700;
}
.status-text .meta {
  color: var(--band-ink-2);
}
.status .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.status .actions a,
.status .actions button {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--band-ink);
  border-radius: 4px;
  background: transparent;
  color: var(--band-ink);
  text-decoration: none;
  font-weight: 700;
}
.status .actions button:hover:not(:disabled),
.status .actions a:hover {
  background: var(--band-fill);
}
.status .actions .primary {
  background: var(--band-ink);
  color: var(--band);
}
.status .actions a.primary:hover {
  background: #e6f1ec;
  border-color: #e6f1ec;
}
.spinner {
  display: inline-block;
  width: 13px;
  height: 13px;
  margin-right: 8px;
  vertical-align: -1px;
  border: 2px solid var(--band-line);
  border-top-color: var(--band-ink);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.turnstile:empty {
  display: none;
}
.turnstile {
  margin-top: 12px;
}

/* ------------------------------------------------------------------ main */

.main {
  max-width: 1360px;
  margin: 0 auto;
  padding: 24px 40px 32px;
}
/* the photo on the left with its example chips under it; the faces as a column on the right */
.stage {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 6fr);
  grid-template-areas:
    "photo faces"
    "photos faces";
  gap: 18px 36px;
  align-items: start;
}
.photo {
  grid-area: photo;
  min-width: 0;
}
.photos {
  grid-area: photos;
  min-width: 0;
}
.faces {
  grid-area: faces;
  min-width: 0;
}

/* the whole photo with the picked faces boxed */
.overview {
  position: relative;
  width: 100%;
  max-height: min(66vh, 640px);
  aspect-ratio: var(--ar, 1.5);
  overflow: hidden;
  background: var(--well);
  touch-action: pan-y;
  cursor: crosshair;
  user-select: none;
  -webkit-user-select: none;
}
.overview-image {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}
.marks {
  position: absolute;
  inset: 0;
}
.mark {
  position: absolute;
  display: grid;
  place-items: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: move;
  touch-action: none;
  pointer-events: auto;
  transform: translate(-50%, -50%);
}
.mark:hover:not(:disabled),
.mark:active {
  background: transparent;
  border: 0;
}
.mark:focus-visible {
  outline: none;
}
.mark-box {
  position: relative;
  display: block;
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35), inset 0 0 0 1px rgba(0, 0, 0, 0.25);
}
.mark:focus-visible .mark-box {
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35), 0 0 0 4px var(--bg), 0 0 0 6px var(--focus);
}
.mark-box::before,
.tab {
  content: attr(data-n);
  position: absolute;
  left: -2px;
  top: -2px;
  z-index: 1;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  background: var(--accent);
  color: var(--accent-type);
  font-size: 12px;
  line-height: 20px;
  font-weight: 900;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.mark-box.is-small::before {
  min-width: 14px;
  height: 14px;
  padding: 0 3px;
  font-size: 10px;
  line-height: 14px;
}
/* the corner handle resizes the box; its hit area is bigger than it looks */
.mark-handle {
  position: absolute;
  right: -8px;
  bottom: -8px;
  width: 14px;
  height: 14px;
  background: var(--accent);
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.35);
  cursor: nwse-resize;
  touch-action: none;
}
.mark-handle::before {
  content: "";
  position: absolute;
  inset: -10px;
}
.zoom-label {
  align-self: center;
  padding: 0 4px;
  font-size: 13px;
  color: var(--ink-2);
}
.zoom button {
  min-width: 34px;
  font-weight: 700;
}
.cursor {
  position: absolute;
  width: 28px;
  height: 28px;
  margin: -14px 0 0 -14px;
  border: 2px dashed #ffffff;
  outline: 1px solid rgba(0, 0, 0, 0.6);
  pointer-events: none;
}
.photo-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 12px;
}
.caption {
  font-size: 15px;
  min-height: 22px;
}
.caption strong {
  font-weight: 700;
}
.caption .meta {
  margin-left: 8px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.whole {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--surface);
}
.whole button {
  min-height: 30px;
  padding: 0 12px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  font-size: 14px;
  color: var(--ink-2);
}
.whole button:hover:not(:disabled) {
  color: var(--ink);
}
.whole button:disabled {
  color: var(--ink-hint);
  opacity: 0.6;
}
.whole [aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
}
.whole [aria-pressed="true"]:hover:not(:disabled) {
  color: var(--bg);
}
.hint {
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-hint);
}
.note-touch {
  display: none;
}

/* the example photos: one face from each, in a round chip */
.photos-head {
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--ink-2);
}
.examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.example {
  display: grid;
  grid-template-columns: 44px auto;
  align-items: center;
  gap: 10px;
  min-height: 0;
  padding: 4px 14px 4px 4px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  text-align: left;
  color: var(--ink-2);
  white-space: nowrap;
}
.example:hover:not(:disabled) {
  border-color: var(--ink);
  color: var(--ink);
}
.example img {
  display: block;
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 50%;
}
.example-text {
  display: grid;
  gap: 0;
  min-width: 0;
  font-size: 14px;
  line-height: 1.25;
}
.example-text small {
  font-size: 12px;
  color: var(--ink-hint);
}
.example[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--surface);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.example[aria-pressed="true"] .example-text > span {
  font-weight: 700;
}
.example[data-loading="true"] {
  border-color: var(--line-strong);
  background: var(--surface);
}

/* ------------------------------------------------------------------ the faces: numbered pairs, same spot, same scale */

.faces-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 24px;
  min-height: 36px;
  margin-bottom: 14px;
}
.faces-head h2 {
  font-size: 22px;
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.015em;
}
.faces-head .count {
  margin-left: 6px;
  font-weight: 400;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.faces-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}
.zoom {
  display: inline-flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--surface);
}
.zoom button {
  min-height: 30px;
  padding: 0 12px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  font-size: 14px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}
.zoom button:hover:not(:disabled) {
  color: var(--ink);
}
.zoom button:disabled {
  color: var(--ink-hint);
  opacity: 0.6;
}
.quiet {
  min-height: 36px;
  padding: 0 12px;
  border-color: var(--line-strong);
  font-size: 14px;
  color: var(--ink-2);
}
.quiet:hover:not(:disabled) {
  color: var(--ink);
}
.faces-empty {
  padding: 28px 0;
  font-size: 15px;
  color: var(--ink-2);
}
.pairs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 272px), 1fr));
  gap: 18px 20px;
}
.pair {
  min-width: 0;
}
.pair-tiles {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.pair-tiles .tab {
  left: 0;
  top: 0;
}
.tile {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--well);
}
.tile canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.tile-note {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 16px;
  text-align: center;
  font-size: 13px;
  line-height: 1.35;
  color: var(--ink-2);
}
.pair-foot {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  gap: 2px;
  margin-top: 6px;
  font-size: 13px;
  color: var(--ink-2);
}
.pair-foot b {
  font-weight: 700;
  color: var(--ink);
}
.pair-foot .x {
  margin-left: 6px;
  color: var(--ink-hint);
  font-variant-numeric: tabular-nums;
}
.remove {
  min-width: 32px;
  min-height: 28px;
  padding: 0 8px;
  border-color: transparent;
  background: transparent;
  font-size: 13px;
  color: var(--ink-2);
}
.remove:hover:not(:disabled) {
  border-color: var(--line-strong);
  color: var(--ink);
}

/* ------------------------------------------------------------------ colophon */

.colophon {
  margin-top: 40px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-2);
}
.colophon-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  min-height: 32px;
  align-items: center;
}
.about summary {
  cursor: pointer;
  padding: 8px 0;
  list-style: none;
}
.about summary::-webkit-details-marker {
  display: none;
}
.about summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  font-weight: 700;
}
.about[open] summary::before {
  content: "–";
}
.about-body {
  max-width: 76ch;
  display: grid;
  gap: 10px;
  padding: 4px 0 16px 16px;
}
.about-body h2 {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}
.credits {
  display: grid;
  gap: 4px;
}

/* ------------------------------------------------------------------ drop anywhere */

.dropzone {
  position: fixed;
  inset: 12px;
  display: none;
  place-items: center;
  border: 2px dashed var(--accent);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.01em;
  z-index: 10;
  pointer-events: none;
}
body[data-dragover="true"] .dropzone {
  display: grid;
}

/* ------------------------------------------------------------------ input modes */

@media (hover: none) {
  .note-mouse {
    display: none;
  }
  .note-touch {
    display: inline;
  }
  .overview {
    cursor: default;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation-duration: 0.01ms !important;
  }
}

/* ------------------------------------------------------------------ narrower desktops and tablets */

@media (max-width: 1180px) {
  .deck {
    grid-template-columns: minmax(240px, 1fr) auto auto;
  }
  .go {
    grid-column: 1 / -1;
    justify-items: start;
    padding-top: 0;
  }
}
@media (max-width: 900px) {
  .stage {
    grid-template-columns: 1fr;
    grid-template-areas:
      "photos"
      "photo"
      "faces";
    gap: 18px;
  }
  .faces {
    margin-top: 12px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
  }
  .pairs {
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  }
}

/* ------------------------------------------------------------------ phones */

@media (max-width: 760px) {
  .band-inner {
    padding: 22px 16px 20px;
  }
  .band-top {
    flex-wrap: wrap;
    gap: 6px 16px;
  }
  h1 {
    font-size: 34px;
  }
  .lead {
    margin-top: 10px;
    font-size: 17px;
  }
  .deck {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 20px;
    padding-top: 18px;
  }
  .pick {
    flex-wrap: wrap;
  }
  .pick-button {
    width: 100%;
    justify-content: center;
  }
  .seg {
    display: flex;
  }
  .seg-option {
    flex: 1;
  }
  .output {
    min-width: 0;
  }
  .output-size {
    font-size: 24px;
  }
  .go {
    justify-items: stretch;
  }
  .run {
    width: 100%;
  }
  .main {
    padding: 18px 16px 28px;
  }
  .photos-head {
    margin-bottom: 6px;
  }
  .examples {
    flex-wrap: nowrap;
    gap: 6px;
    margin: 0 -16px;
    padding: 0 16px 2px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .examples li {
    flex: none;
  }
  .example {
    grid-template-columns: 40px auto;
    gap: 8px;
    padding: 3px 12px 3px 3px;
  }
  .example img {
    width: 40px;
    height: 40px;
  }
  .example-text small {
    display: none;
  }
  .overview {
    max-height: 72vh;
  }
  .faces-head h2 {
    font-size: 20px;
  }
  .pairs {
    grid-template-columns: 1fr;
    gap: 16px;
  }
}