.envelope {
  --card-turn: -4.73deg;
  --stamp-cell: calc(var(--control-medium) + 2 * var(--padding-large));
  position: relative;
  isolation: isolate;
  width: min(100%, calc(var(--content-max) / 2));
  margin-inline: auto;
  padding: var(--spacing-small) var(--spacing-xxxlarge) var(--spacing-xtreme1) var(--spacing-xxlarge);
}

.envelope-behind,
.envelope-cover {
  position: absolute;
  inset: 0;
  overflow: visible;
  pointer-events: none;
}

.envelope-behind {
  z-index: -1;
}

.envelope-cover {
  z-index: 1;
}

.envelope-paper {
  fill: var(--background-envelope);
}

.envelope-paper[data-piece="flap"] {
  fill: var(--background-envelope-flap);
}

.envelope-edge {
  fill: none;
  stroke: var(--border-envelope);
  stroke-width: calc(2 * var(--stroke-small));
}

.envelope-frost {
  position: absolute;
  inset: 0;
  z-index: 1;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  pointer-events: none;
}

[data-envelope-card] {
  rotate: var(--turn);
  transition: translate var(--duration-reveal) var(--ease-glide), rotate var(--duration-reveal) var(--ease-glide);
}

.envelope-card {
  --turn: var(--card-turn);
  --card-paper: var(--background-band-stone);
  position: relative;
  display: flex;
  flex-direction: column;
  aspect-ratio: 1;
  padding: var(--spacing-large);
  border-radius: var(--radius-xsmall);
  background: var(--card-paper);
  box-shadow: var(--shadow-subtle-xsmall);
}

:root[data-card-paper="paper"] .envelope-card {
  --card-paper: var(--background-band-paper);
}

:root[data-card-paper="peach"] .envelope-card {
  --card-paper: var(--background-band-peach);
}

.card-sheet {
  flex: 1;
  display: grid;
  gap: var(--stroke-small);
  border: var(--stroke-small) solid var(--border-primary);
  background: var(--border-primary);
}

.card-cell {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xsmall);
  min-width: 0;
  padding: var(--padding-large);
  background: var(--card-paper);
}

.card-label {
  font: var(--text-caption-ac);
  letter-spacing: var(--text-caption-ac-tracking);
  text-transform: uppercase;
  color: var(--content-tertiary);
}

.card-value {
  font: var(--text-caption-1);
  letter-spacing: var(--text-caption-1-tracking);
  color: var(--content-secondary);
}

.card-kicker {
  grid-area: kicker;
  flex-direction: row;
  justify-content: space-between;
  align-items: baseline;
}

.card-stamp {
  grid-area: stamp;
  align-items: center;
  justify-content: center;
}

.card-seal {
  width: var(--control-medium);
  height: var(--control-medium);
  rotate: calc(-1 * var(--turn));
  transition: rotate var(--duration-reveal) var(--ease-glide);
}

.card-message {
  grid-area: message;
  gap: var(--spacing-small);
  padding: var(--padding-xlarge) var(--padding-large);
}

.card-title {
  grid-area: title;
  font: var(--text-title-3);
  letter-spacing: var(--text-title-3-tracking);
}

.card-note {
  grid-area: note;
  max-width: 40ch;
  font: var(--text-subheadline);
  letter-spacing: var(--text-subheadline-tracking);
  color: var(--content-secondary);
}

.card-pieces {
  grid-area: pieces;
}

.card-list {
  display: grid;
  gap: var(--spacing-xxsmall);
  margin: 0;
  padding: 0;
  list-style: none;
  font: var(--text-footnote);
  letter-spacing: var(--text-footnote-tracking);
}

.card-list li {
  display: flex;
  gap: var(--spacing-xsmall);
}

.card-number {
  font: var(--text-figure-small);
  letter-spacing: var(--text-figure-small-tracking);
  color: var(--content-tertiary);
}

.card-facts {
  grid-area: facts;
  justify-content: space-between;
}

.card-studio {
  grid-area: studio;
  justify-content: space-between;
}

.card-sign {
  grid-area: sign;
  position: relative;
  justify-content: flex-end;
  min-height: var(--spacing-xtreme1);
}

.card-signature {
  position: absolute;
  right: var(--padding-large);
  bottom: var(--padding-large);
  width: var(--spacing-xtreme1);
  height: auto;
  mix-blend-mode: multiply;
  pointer-events: none;
}

:root[data-card-layout="letter"] :is(.card-pieces, .card-facts),
:root[data-card-layout="ledger"] .card-studio,
:root[data-card-layout="split"] :is(.card-pieces, .card-facts),
:root[data-card-layout="postcard"] .card-pieces,
:root[data-card-layout="index"] :is(.card-facts, .card-studio) {
  display: none;
}

:root:is([data-card-layout="ledger"], [data-card-layout="split"], [data-card-layout="index"]) .card-message {
  display: contents;
}

:root:is([data-card-layout="ledger"], [data-card-layout="split"], [data-card-layout="index"]) .card-message > * {
  padding: var(--padding-large);
  background: var(--card-paper);
}

:root[data-card-layout="letter"] .card-sheet {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) var(--stamp-cell);
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "kicker kicker stamp"
    "message message message"
    "studio sign sign";
}

:root:is([data-card-layout="letter"], [data-card-layout="split"]) .card-title {
  font: var(--text-title-2);
  letter-spacing: var(--text-title-2-tracking);
}

:root[data-card-layout="ledger"] .card-sheet {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: auto auto 1fr auto;
  grid-template-areas:
    "kicker stamp"
    "title title"
    "note pieces"
    "facts sign";
}

:root:is([data-card-layout="ledger"], [data-card-layout="postcard"]) .card-stamp {
  align-items: flex-end;
}

:root:is([data-card-layout="ledger"], [data-card-layout="index"]) .card-note {
  font: var(--text-footnote);
  letter-spacing: var(--text-footnote-tracking);
}

:root[data-card-layout="split"] .card-sheet {
  grid-template-columns: var(--stamp-cell) minmax(0, 1fr);
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "stamp title"
    "kicker note"
    "studio sign";
}

:root[data-card-layout="split"] :is(.card-kicker, .card-studio) {
  writing-mode: vertical-rl;
  rotate: 180deg;
  justify-content: flex-end;
  align-items: center;
}

:root[data-card-layout="split"] .card-studio .card-value {
  display: none;
}

:root[data-card-layout="split"] .card-title {
  align-self: stretch;
  display: flex;
  align-items: flex-end;
}

:root[data-card-layout="postcard"] .card-sheet {
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  grid-template-rows: auto 1fr 1fr 1fr auto;
  grid-template-areas:
    "message stamp"
    "message kicker"
    "message facts"
    "message studio"
    "sign sign";
}

:root[data-card-layout="postcard"] :is(.card-kicker, .card-facts, .card-studio) {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
}

:root[data-card-layout="postcard"] .card-seal {
  border-radius: var(--radius-max);
  outline: var(--stroke-small) dashed var(--border-secondary);
  outline-offset: var(--spacing-xxsmall);
}

:root[data-card-layout="index"] .card-sheet {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-rows: auto auto auto auto 1fr;
  grid-template-areas:
    "stamp stamp"
    "title title"
    "note note"
    "pieces pieces"
    "kicker sign";
  text-align: center;
}

:root[data-card-layout="index"] .card-title {
  font: var(--text-name);
  letter-spacing: var(--text-name-tracking);
}

:root[data-card-layout="index"] .card-note {
  max-width: none;
  padding-inline: var(--spacing-xxlarge);
}

:root[data-card-layout="index"] .card-pieces {
  align-items: center;
}

:root[data-card-layout="index"] .card-list {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  align-self: stretch;
}

:root[data-card-layout="index"] .card-list li {
  flex-direction: column;
  align-items: center;
  padding-inline: var(--padding-xsmall);
}

:root[data-card-layout="index"] .card-list li + li {
  border-left: var(--stroke-small) solid var(--border-primary);
}

.envelope-print {
  --turn: 0deg;
  position: absolute;
  display: none;
  margin: 0;
  padding: var(--padding-small);
  background: var(--background-band-paper);
  box-shadow: var(--shadow-subtle-xsmall);
}

.envelope-print img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  user-select: none;
}

.envelope-print[data-print="left"] {
  --turn: -6deg;
  top: -18%;
  left: 4%;
  width: 67%;
}

.envelope-print[data-print="right"] {
  --turn: 5deg;
  top: -10%;
  right: 4%;
  width: 67%;
}

:root:not([data-card-stack="none"]) .envelope-print {
  display: block;
}

:root[data-card-motion="drag"] [data-envelope-card] {
  translate: var(--drag-x, 0px) var(--drag-y, 0px);
  cursor: grab;
  touch-action: none;
  user-select: none;
}

[data-envelope-card].is-out {
  z-index: 3;
}

[data-envelope-card].is-held {
  --turn: 0deg;
  z-index: 4;
  cursor: grabbing;
  transition: rotate var(--duration-fade) var(--ease-glide);
}

.envelope-pocket {
  position: absolute;
  inset: auto 0 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding-bottom: var(--spacing-xlarge);
  pointer-events: none;
}

.envelope-label {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xsmall);
  font: var(--text-caption-ac);
  letter-spacing: var(--text-caption-ac-tracking);
  text-transform: uppercase;
  color: var(--content-primary);
  text-decoration: none;
  pointer-events: auto;
}

.envelope-label-name {
  display: none;
}

.envelope-label-action {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xsmall);
}

.envelope-file {
  font: var(--text-caption-1);
  letter-spacing: var(--text-caption-1-tracking);
  text-transform: none;
  white-space: nowrap;
  color: var(--content-secondary);
}

:root[data-catalogue-label="paper"] .envelope-label {
  display: grid;
  grid-template-columns: auto auto;
  align-items: stretch;
  gap: var(--stroke-small);
  margin-bottom: calc(-1 * var(--spacing-xsmall));
  border: var(--stroke-small) solid var(--border-primary);
  background: var(--border-primary);
  box-shadow: var(--shadow-subtle-xsmall);
  rotate: -1.5deg;
  text-decoration: none;
}

:root[data-catalogue-label="paper"] .envelope-label > * {
  display: flex;
  align-items: center;
  padding: var(--padding-medium) var(--padding-large);
  background: var(--background-band-paper);
}

:root[data-catalogue-label="paper"] .envelope-label-name {
  grid-row: span 2;
  font: var(--text-headline);
  letter-spacing: var(--text-headline-tracking);
  text-transform: none;
}

:root[data-catalogue-label="paper"] .envelope-label::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--spacing-xsmall));
  left: 50%;
  z-index: 1;
  width: var(--spacing-xtreme1);
  height: var(--spacing-medium);
  translate: -50% 0;
  rotate: 4deg;
  background: var(--background-envelope-flap);
}

:root[data-catalogue-label="emboss"] .envelope-label {
  flex-direction: column;
  gap: var(--spacing-xsmall);
  color: var(--background-envelope);
  text-decoration: none;
  text-shadow: 0 var(--stroke-small) 0 var(--border-envelope), 0 calc(-1 * var(--stroke-small)) 0 var(--border-secondary);
}

:root[data-catalogue-label="emboss"] .envelope-label-name {
  display: block;
  font: var(--text-title-2);
  letter-spacing: var(--text-title-2-tracking);
  text-transform: none;
}

:root[data-catalogue-label="emboss"] .envelope-label [data-icon] {
  filter: drop-shadow(0 var(--stroke-small) 0 var(--border-envelope)) drop-shadow(0 calc(-1 * var(--stroke-small)) 0 var(--border-secondary));
}

.relief-highlight {
  flood-color: var(--content-relief-highlight);
}

.relief-shade {
  flood-color: var(--content-relief-shade);
}

:root[data-catalogue-label="relief"] .envelope-label {
  flex-direction: column;
  gap: var(--spacing-xsmall);
  color: var(--content-relief);
  text-decoration: none;
}

:root[data-catalogue-label="relief"] .envelope-label-name {
  color: var(--relief-fill, var(--content-relief));
  filter: url(#envelope-relief);
}

:root:is([data-catalogue-label="emboss"], [data-catalogue-label="relief"]) .envelope-label-action {
  color: var(--content-envelope-link);
  text-shadow: none;
}

:root[data-catalogue-label="emboss"] .envelope-label-action [data-icon] {
  filter: none;
}

:root[data-catalogue-label="relief"] .envelope-label-name {
  display: block;
  font: var(--text-title-2);
  letter-spacing: var(--text-title-2-tracking);
  text-transform: none;
}

:root:is([data-catalogue-label="emboss"], [data-catalogue-label="relief"]) .envelope-file {
  color: var(--content-tertiary);
  text-shadow: none;
}

@media (hover: hover) {
  :root[data-card-motion="lift"] .envelope:hover:not(:has(.envelope-label:hover)) .envelope-card {
    --turn: 0deg;
    translate: 0 -20%;
  }

  :root[data-card-motion="peek"] [data-envelope-card]:hover {
    translate: 0 -8%;
  }

  :root[data-card-motion="peek"] .envelope-card:hover {
    --turn: calc(var(--card-turn) / 2);
  }
}

@media (max-width: 768px) {
  .envelope {
    --card-turn: -2deg;
    padding: var(--spacing-large) var(--spacing-large) var(--spacing-xxlarge);
  }

  .envelope-card {
    padding: var(--spacing-medium);
  }
}

@media (max-width: 600px) {
  :root[data-card-layout] .card-sheet {
    grid-template-columns: minmax(0, 1fr) var(--stamp-cell);
    grid-template-rows: none;
    grid-template-areas: none;
  }

  .card-sheet > *,
  .card-message > * {
    grid-area: auto / 1 / auto / -1;
  }

  .card-sheet > .card-kicker {
    grid-area: 1 / 1;
  }

  .card-sheet > .card-stamp {
    grid-area: 1 / 2;
  }

  :root[data-card-layout="split"] :is(.card-kicker, .card-studio) {
    writing-mode: horizontal-tb;
    rotate: none;
  }

  :root[data-card-layout="index"] .card-title {
    font: var(--text-wordmark);
    letter-spacing: var(--text-wordmark-tracking);
  }

  :root[data-card-layout="index"] .card-note {
    padding-inline: var(--padding-large);
  }

  :root[data-card-layout="index"] .card-list {
    grid-template-columns: 1fr;
    gap: var(--spacing-xxsmall);
  }

  :root[data-card-layout="index"] .card-list li {
    flex-direction: row;
    justify-content: center;
  }

  :root[data-card-layout="index"] .card-list li + li {
    border-left: 0;
  }

  :root[data-catalogue-label="paper"] .envelope-label {
    grid-template-columns: auto;
  }

  :root[data-catalogue-label="paper"] .envelope-label-name {
    display: none;
  }
}