/* Flipbook: risograph zine meets card catalog. */

:root {
  --paper: #f6efe2;
  --paper-2: #efe4cf;
  --ink: #16130f;
  --ink-soft: #5b5347;
  --danger: #b3261e;
  --card: #fffaf0;
  --shadow: var(--ink);

  --pink: #ff48b0;
  --blue: #0078bf;
  --yellow: #ffe14d;
  --green: #00a95c;
  --orange: #ff6c2f;
  --purple: #8a5cf6;

  --c-ia: var(--blue);
  --c-loc: var(--orange);
  --c-nypl: var(--pink);
  --c-bhl: var(--green);
  --c-ecod: var(--purple);
  --c-nga: #c8a2ff;
  --c-getty: #ffb000;
  --c-yale: #6cb4ff;
  --c-wellcome: #3ecfb2;
  --c-mine: var(--yellow);

  --line: 3px;
  --radius: 10px;
  --lift: 6px;
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --mono: "Space Mono", ui-monospace, monospace;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1b1813;
    --paper-2: #24201a;
    --ink: #f3ead8;
    --ink-soft: #b9ad98;
    --danger: #ff8a80;
    --card: #2a251e;
    --shadow: #000;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #1b1813;
  --paper-2: #24201a;
  --ink: #f3ead8;
  --ink-soft: #b9ad98;
  --danger: #ff8a80;
  --card: #2a251e;
  --shadow: #000;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 60;
  padding: 10px 16px;
  font-weight: 700;
  color: #16130f;
  background: var(--yellow);
  border: var(--line) solid #16130f;
  border-radius: var(--radius);
}
.skip-link:focus { top: 12px; }
.shelf:focus { outline: none; }
.step-buttons { display: inline-flex; gap: 8px; }
.btn--step { padding: 12px 14px; min-width: 48px; background: var(--card); color: var(--ink); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.only-touch { display: none; }
@media (hover: none) {
  .only-hover { display: none; }
  .only-touch { display: inline; }
}

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--display);
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(color-mix(in srgb, var(--ink) 9%, transparent) 1px, transparent 1.2px);
  background-size: 14px 14px;
  line-height: 1.45;
  overflow-x: hidden;
}

code, kbd, .counter, .kicker, .sticker, .paste-hint, .viewer-meta, .keys, .gif-size, .progress-text {
  font-family: var(--mono);
}

a { color: inherit; }

/* ---------- Masthead ---------- */

.masthead {
  padding: clamp(28px, 6vw, 64px) 16px clamp(16px, 3vw, 28px);
  text-align: center;
}
.masthead-inner { max-width: 820px; margin: 0 auto; }

.kicker {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 10px;
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--card);
  transform: rotate(-1.5deg);
}

.title {
  margin: 0;
  font-size: clamp(56px, 13vw, 132px);
  line-height: .86;
  font-weight: 800;
  letter-spacing: -.04em;
}
.title-word {
  display: inline-block;
  color: var(--pink);
  -webkit-text-stroke: var(--line) var(--ink);
  paint-order: stroke fill;
  text-shadow: 5px 5px 0 var(--ink);
  transform: rotate(-2deg);
}
.title-word--alt {
  color: var(--yellow);
  transform: rotate(1.5deg) translateY(4px);
  animation: wobble 2.5s ease-in-out 2; /* stops after 5 s (WCAG 2.2.2) */
}
@keyframes wobble {
  0%, 100% { transform: rotate(1.5deg) translateY(4px); }
  50% { transform: rotate(-1deg) translateY(0); }
}

.tagline {
  margin: 22px auto 0;
  max-width: 560px;
  font-size: clamp(16px, 2.2vw, 19px);
  color: var(--ink-soft);
}

.backstory {
  margin: 10px auto 0;
  max-width: 660px;
  font-size: 15px;
  color: var(--ink-soft);
}
.backstory a { color: var(--ink); font-weight: 700; text-underline-offset: 3px; }

/* ---------- Buttons & fields ---------- */

.btn {
  font: 700 16px/1 var(--display);
  color: #16130f;
  padding: 12px 18px;
  border: var(--line) solid var(--ink);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: 4px 4px 0 var(--shadow);
  cursor: pointer;
  transition: transform .08s, box-shadow .08s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--shadow); }
.btn:active { transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--shadow); }
.btn:disabled { opacity: .55; cursor: progress; transform: none; }
.btn--pink { background: var(--pink); }
.btn--yellow { background: var(--yellow); }
.btn--green { background: var(--green); } /* dark text: white on this green is only 3:1 */
.btn--wide { width: 100%; }
.btn--icon {
  width: 36px; height: 36px; padding: 0;
  font-size: 16px; color: var(--ink);
  box-shadow: 2px 2px 0 var(--shadow);
}

:focus-visible { outline: 3px dashed var(--blue); outline-offset: 3px; }

.paste {
  max-width: 860px;
  margin: 8px auto 0;
  padding: 0 16px;
}
.paste-form {
  background: var(--card);
  border: var(--line) solid var(--ink);
  border-radius: calc(var(--radius) + 4px);
  box-shadow: var(--lift) var(--lift) 0 var(--shadow);
  padding: 18px;
}
.paste-label { display: block; font-weight: 800; font-size: 20px; margin-bottom: 10px; }
.paste-row { display: flex; gap: 10px; }
.paste-input {
  flex: 1;
  min-width: 0;
  font: 15px var(--mono);
  color: var(--ink);
  background: var(--paper);
  border: var(--line) solid var(--ink);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.paste-input::placeholder { color: var(--ink-soft); }
.paste-hint { margin: 12px 0 0; font-size: 12px; color: var(--ink-soft); }
.paste-hint code { background: var(--paper-2); padding: 1px 4px; border-radius: 4px; }
.paste-status { margin: 8px 0 0; min-height: 1.2em; font-weight: 700; }
.paste-status.is-error { color: var(--danger); }

@media (max-width: 560px) {
  .paste-row { flex-direction: column; }
}

.shelf-controls {
  max-width: 1200px;
  margin: 28px auto 0;
  padding: 0 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  align-items: center;
  justify-content: center;
}

.toggle { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 700; }
.toggle input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-track {
  width: 52px; height: 30px; flex: none;
  border: var(--line) solid var(--ink);
  border-radius: 999px;
  background: var(--card);
  position: relative;
  transition: background .15s;
}
.toggle-thumb {
  position: absolute; top: 2px; left: 2px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--ink);
  transition: transform .15s;
}
.toggle input:checked + .toggle-track { background: var(--pink); }
.toggle input:checked + .toggle-track .toggle-thumb { transform: translateX(22px); }
.toggle input:focus-visible + .toggle-track { outline: 3px dashed var(--blue); outline-offset: 3px; }
.toggle-text small { font-weight: 400; color: var(--ink-soft); }
.toggle--small .toggle-track { width: 44px; height: 26px; }
.toggle--small .toggle-thumb { width: 16px; height: 16px; }
.toggle--small input:checked + .toggle-track .toggle-thumb { transform: translateX(18px); }

.select { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
select {
  font: 700 14px var(--mono);
  color: var(--ink);
  background: var(--card);
  border: var(--line) solid var(--ink);
  border-radius: 8px;
  padding: 6px 8px;
}

/* ---------- Shelf ---------- */

.shelf {
  max-width: 1200px;
  margin: 28px auto 0;
  padding: 0 16px 40px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 36px 28px;
}
@media (max-width: 480px) {
  .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 16px; }
}

.card { position: relative; }
.card:nth-child(3n+1) { --tilt: -1.2deg; }
.card:nth-child(3n+2) { --tilt: .8deg; }
.card:nth-child(3n) { --tilt: -.4deg; }

.card-cover {
  all: unset;
  box-sizing: border-box;
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: var(--card);
  border: var(--line) solid var(--ink);
  border-radius: var(--radius);
  box-shadow: var(--lift) var(--lift) 0 var(--shadow);
  overflow: hidden;
  cursor: ew-resize;
  transform: rotate(var(--tilt, 0deg));
  transition: transform .15s cubic-bezier(.3, 1.6, .5, 1), box-shadow .15s;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.card-cover:hover, .card-cover.is-scrubbing, .card-cover:focus-visible {
  transform: rotate(0deg) translate(-3px, -3px) scale(1.02);
  box-shadow: 10px 10px 0 var(--shadow);
}
.card-cover:focus-visible { outline: 3px dashed var(--blue); outline-offset: 4px; }

.card-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px 8px 22px;
  background: var(--paper-2);
  opacity: 0;
  transition: opacity .25s;
}
.card-img.is-ready { opacity: 1; }

.sticker {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #16130f;
  background: var(--sticker, var(--yellow));
  border: 2px solid #16130f;
  border-radius: 6px;
  transform: rotate(-4deg);
  box-shadow: 2px 2px 0 #16130f;
}

.counter {
  position: absolute;
  right: 8px;
  top: 8px;
  z-index: 2;
  padding: 2px 7px;
  font-size: 11px;
  font-weight: 700;
  background: #16130f;
  color: #fffaf0;
  border-radius: 999px;
  opacity: 0;
  transition: opacity .15s;
}
.card-cover:hover .counter, .card-cover.is-scrubbing .counter, .card-cover.is-flashing .counter, .card-cover:focus-visible .counter { opacity: 1; }

.ticks {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 14px;
  display: flex;
  gap: 1px;
  padding: 3px 4px;
  background: #16130f;
  z-index: 2;
}
.ticks i, .tick-sample i {
  flex: 1;
  border-radius: 1px;
  background: #3b352c;
  transition: background .2s;
}
.ticks i.is-loaded, .tick-sample i.is-loaded { background: #8d8272; }
.ticks i.is-current, .tick-sample i.is-current { background: var(--sticker, var(--pink)); }
/* Skipped (blank, or text in plates-only mode): a thin dash, unlike any square. */
.ticks i.is-skipped, .tick-sample i.is-skipped { background: linear-gradient(#8d8272, #8d8272) center / 100% 2px no-repeat; }

/* Key to the tick strip, under the shelf options. */
.tick-key {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 18px;
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}
.tick-key > span { display: inline-flex; align-items: center; gap: 6px; }
.tick-sample {
  display: inline-flex;
  width: 20px;
  height: 14px;
  padding: 3px 4px;
  background: #16130f;
  border-radius: 3px;
  box-shadow: 0 0 0 1px rgba(141, 130, 114, .45); /* visible on the dark theme too */
}

.card-error {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 16px;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  background: repeating-linear-gradient(-45deg, var(--paper-2) 0 10px, var(--card) 10px 20px);
  cursor: help;
}
.card-error[hidden] { display: none; }
.card-error .big { font-size: 34px; line-height: 1; }
.card-error small { font: 11px var(--mono); color: var(--ink-soft); font-weight: 400; }

.card-caption { margin-top: 14px; padding: 0 2px; }
.card-title {
  margin: 0;
  font-size: 17px;
  line-height: 1.2;
  font-weight: 800;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-note { margin: 3px 0 0; font-size: 13px; color: var(--ink-soft); }
.card-links { display: flex; flex-wrap: wrap; gap: 2px 12px; margin: 5px 0 0; font: 700 12px var(--mono); }
.card-links a { color: var(--ink-soft); text-decoration-thickness: 1px; text-underline-offset: 2px; }
.card-links a:hover { color: var(--ink); }

.card-remove {
  position: absolute;
  top: -12px;
  right: -12px;
  z-index: 4;
  width: 30px; height: 30px;
  border-radius: 50%;
  font-size: 13px;
}

.card.is-new .card-cover { animation: plop .5s cubic-bezier(.3, 1.8, .5, 1); }
@keyframes plop {
  from { transform: translateY(-40px) rotate(-8deg) scale(.8); opacity: 0; }
}

/* Loading indicator: three flapping pages */
.flipper {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 44px;
  height: 34px;
  margin: -17px 0 0 -22px;
  z-index: 1;
  perspective: 120px;
}
.flipper span {
  position: absolute;
  left: 50%;
  top: 0;
  width: 50%;
  height: 100%;
  background: var(--card);
  border: 2px solid var(--ink);
  border-left-width: 1px;
  transform-origin: left center;
  animation: flip 1.2s infinite ease-in-out;
}
.flipper span:nth-child(2) { animation-delay: .15s; background: var(--yellow); }
.flipper span:nth-child(3) { animation-delay: .3s; background: var(--pink); }
@keyframes flip {
  0%, 20% { transform: rotateY(0deg); }
  60%, 100% { transform: rotateY(-180deg); }
}
.is-loaded-cover .flipper, .flipper[hidden] { display: none; }

.paste-label small { font-weight: 400; font-size: 14px; color: var(--ink-soft); }

.drop-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: color-mix(in srgb, var(--pink) 30%, transparent);
  backdrop-filter: blur(2px);
  pointer-events: none;
}
.drop-overlay p {
  margin: 0;
  padding: 28px 36px;
  text-align: center;
  font-size: clamp(26px, 5vw, 44px);
  font-weight: 800;
  background: var(--card);
  border: var(--line) dashed var(--ink);
  border-radius: 18px;
  box-shadow: 8px 8px 0 var(--shadow);
  transform: rotate(-2deg);
}
.drop-overlay small { display: block; margin-top: 6px; font-size: 15px; font-weight: 400; color: var(--ink-soft); }

/* ---------- Viewer dialog ---------- */

.viewer {
  width: min(1100px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  padding: 0;
  color: var(--ink);
  background: var(--card);
  border: var(--line) solid var(--ink);
  border-radius: calc(var(--radius) + 6px);
  box-shadow: 10px 10px 0 var(--shadow);
  overflow: auto;
}
.viewer::backdrop {
  background: color-mix(in srgb, #16130f 60%, transparent);
  backdrop-filter: blur(3px);
}
.viewer[open] { animation: pop .25s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes pop { from { transform: scale(.92) rotate(-1deg); opacity: 0; } }

.viewer-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 1fr);
  gap: 24px;
  padding: 24px;
}
@media (max-width: 800px) {
  .viewer-inner { grid-template-columns: 1fr; padding: 16px; gap: 16px; }
}
.viewer-close { position: absolute; top: 12px; right: 12px; z-index: 5; }

.stage { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.stage-frame {
  position: relative;
  height: min(62vh, 640px);
  height: min(62dvh, 640px);
  min-height: 280px;
  background: var(--paper-2);
  border: var(--line) solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: ew-resize;
  touch-action: pan-y;
}
.stage-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  user-select: none;
  -webkit-user-drag: none;
}
.counter--big { opacity: 1; font-size: 13px; top: 10px; right: auto; left: 10px; padding: 4px 10px; }

.range {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  height: 22px;
  background: transparent;
  cursor: pointer;
}
.range::-webkit-slider-runnable-track {
  height: 12px;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  border-radius: 999px;
}
.range::-moz-range-track {
  height: 8px;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  border-radius: 999px;
}
.range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  margin-top: -8px;
  background: var(--pink);
  border: var(--line) solid var(--ink);
  border-radius: 6px;
  transform: rotate(45deg);
}
.range::-moz-range-thumb {
  width: 18px; height: 18px;
  background: var(--pink);
  border: var(--line) solid var(--ink);
  border-radius: 6px;
  transform: rotate(45deg);
}

.stage-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.inline-field { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; }
.inline-field input[type="range"] { width: 110px; height: 24px; accent-color: var(--pink); }
.inline-field output { font: 12px var(--mono); min-width: 44px; }

.panel { position: relative; min-width: 0; padding-top: 30px; }
.panel .sticker { top: 0; left: 0; }
.viewer-title { margin: 8px 40px 6px 0; font-size: 26px; line-height: 1.1; font-weight: 800; overflow-wrap: anywhere; }
.viewer-meta { margin: 0; font-size: 12px; color: var(--ink-soft); overflow-wrap: anywhere; }
.viewer-links { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 10px 0 18px; font-weight: 700; font-size: 14px; }
.linklike { all: unset; cursor: pointer; text-decoration: underline; }
.linklike:focus-visible { outline: 3px dashed var(--blue); }

.gif-box {
  background: var(--paper);
  border: var(--line) solid var(--ink);
  border-radius: var(--radius);
  padding: 16px;
}
.gif-box h3 { margin: 0 0 12px; font-size: 20px; }
.gif-fields { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.gif-fields label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; font-weight: 700; }
select:disabled { opacity: .4; border-style: dashed; cursor: not-allowed; }
.gif-fields label:has(select:disabled) { color: var(--ink-soft); cursor: not-allowed; }
.gif-fields select { width: 100%; }
.gif-fields .check { flex-direction: row; align-items: center; gap: 8px; align-self: end; padding-bottom: 8px; }
.gif-fields .check input { width: 18px; height: 18px; accent-color: var(--pink); }

.progress {
  position: relative;
  margin-top: 12px;
  height: 26px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  overflow: hidden;
  background: var(--card);
}
.progress-bar {
  height: 100%;
  width: 0;
  background: repeating-linear-gradient(-45deg, var(--pink) 0 10px, var(--yellow) 10px 20px);
  background-size: 28px 28px;
  animation: stripes .6s linear infinite;
  transition: width .2s;
}
@keyframes stripes { to { background-position: 28px 0; } }
.progress-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #16130f;
}
.gif-error { margin: 10px 0 0; color: var(--danger); font-weight: 700; font-size: 14px; }
.gif-error:empty { display: none; }
.gif-result { margin: 14px 0 0; }
.gif-result video { display: block; max-width: 100%; max-height: 340px; margin: 0 auto 10px; border: 2px solid var(--ink); border-radius: 6px; }
.gif-result img {
  display: block;
  max-width: 100%;
  max-height: 340px;
  margin: 0 auto 10px;
  border: 2px solid var(--ink);
  border-radius: 6px;
  background: var(--paper-2);
}
.gif-result figcaption { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.gif-size { font-size: 12px; color: var(--ink-soft); }

.keys { margin: 14px 0 0; font-size: 12px; color: var(--ink-soft); }
kbd {
  display: inline-block;
  padding: 0 5px;
  border: 1.5px solid var(--ink-soft);
  border-bottom-width: 3px;
  border-radius: 4px;
  font-size: 11px;
}

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

.footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  text-align: center;
  font-size: 13px;
  color: var(--ink-soft);
}
.footer p { margin: 4px 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}