/* The theme gallery (/themes/ and /themes/<id>/), on top of /sheet.css. The
   colours of each 見本 come from the build's colors.css: custom properties
   --t-<colour key> on .t-<id> (no inline styles: the CSP allows only the
   site's own files). */

.c-foreground { color: var(--t-foreground); }
.c-black { color: var(--t-black); }
.c-red { color: var(--t-red); }
.c-green { color: var(--t-green); }
.c-yellow { color: var(--t-yellow); }
.c-blue { color: var(--t-blue); }
.c-magenta { color: var(--t-magenta); }
.c-cyan { color: var(--t-cyan); }
.c-white { color: var(--t-white); }
.c-brightBlack { color: var(--t-brightBlack); }
.c-brightRed { color: var(--t-brightRed); }
.c-brightGreen { color: var(--t-brightGreen); }
.c-brightYellow { color: var(--t-brightYellow); }
.c-brightBlue { color: var(--t-brightBlue); }
.c-brightMagenta { color: var(--t-brightMagenta); }
.c-brightCyan { color: var(--t-brightCyan); }
.c-brightWhite { color: var(--t-brightWhite); }

.b-selection { background: var(--t-selection); }
.b-cursor { background: var(--t-cursor); }
.b-black { background: var(--t-black); }
.b-red { background: var(--t-red); }
.b-green { background: var(--t-green); }
.b-yellow { background: var(--t-yellow); }
.b-blue { background: var(--t-blue); }
.b-magenta { background: var(--t-magenta); }
.b-cyan { background: var(--t-cyan); }
.b-white { background: var(--t-white); }
.b-brightBlack { background: var(--t-brightBlack); }
.b-brightRed { background: var(--t-brightRed); }
.b-brightGreen { background: var(--t-brightGreen); }
.b-brightYellow { background: var(--t-brightYellow); }
.b-brightBlue { background: var(--t-brightBlue); }
.b-brightMagenta { background: var(--t-brightMagenta); }
.b-brightCyan { background: var(--t-brightCyan); }
.b-brightWhite { background: var(--t-brightWhite); }

.terminal {
  background: var(--t-background);
  color: var(--t-foreground);
}

/* ── The list ───────────────────────────────────────────────────────────── */

/* The filters: the name, then the backgrounds as a row of cells. */

.filters {
  display: grid;
  border-bottom: 1px solid var(--rule);
}

.search {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--rule);
}

.search > span,
.tones label {
  font: 500 11px/1.3 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.search > span {
  padding-left: var(--pad);
  color: var(--muted);
  white-space: nowrap;
}

.search input {
  flex: 1;
  min-width: 0;
  height: 52px;
  padding: 0 var(--pad);
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: 16px var(--sans);
  -webkit-appearance: none;
  appearance: none;
}

.search input:focus-visible {
  outline: 0;
  box-shadow: inset 0 -2px 0 var(--accent);
}

.tones {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

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

.tones label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  height: 52px;
  padding: 0 var(--pad);
  cursor: pointer;
}

.tones label + label {
  border-left: 1px solid var(--rule);
}

.tones input {
  flex: none;
  width: 9px;
  height: 9px;
  margin: 0;
  border: 1px solid currentColor;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}

.tones input:checked {
  border-color: var(--accent);
  background: var(--accent);
}

.tones input:focus-visible {
  outline-offset: 3px;
}

.tones label:has(input:checked) {
  background: var(--ink);
  color: var(--paper);
}

.tones .n {
  margin-left: auto;
  opacity: 0.6;
}

@media (min-width: 900px) {
  .filters {
    grid-template-columns: minmax(0, 1fr) minmax(380px, 520px);
  }

  .search {
    border-bottom: 0;
  }

  .tones {
    border-left: 1px solid var(--rule);
  }
}

/* The plates: each theme painted whole, its 16 colours down the left edge,
   its 見本 above and its title block below. Every third plate, from the first,
   is large: across the sheet on a phone; two cells square on a wide screen,
   left and right in turn, so the plates lock together like bricks. */

.plates {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-flow: row dense;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* The rules between plates: each plate's outline over the 1px gaps, so a
   cell the last row leaves empty stays paper. */
.plates > li {
  display: flex;
  min-width: 0;
  outline: 1px solid var(--rule);
}

.plates > li:nth-child(3n+1) {
  grid-column: 1 / -1;
}

.plates a {
  display: flex;
  flex: 1;
  min-width: 0;
  text-decoration: none;
}

.plate {
  --dim: color-mix(in srgb, var(--t-foreground) 76%, var(--t-background));
  --hair: color-mix(in srgb, var(--t-foreground) 24%, var(--t-background));
  container-type: inline-size;
  position: relative;
  flex: 1;
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) auto;
  min-width: 0;
  background: var(--t-background);
  color: var(--t-foreground);
}

/* The vermilion marker of the plate under the pointer. */
.plate::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 10px;
  height: 10px;
  background: var(--accent);
  opacity: 0;
}

.plates a:hover .plate::after,
.plates a:focus-visible .plate::after {
  opacity: 1;
}

.strip {
  grid-column: 1;
  grid-row: 1 / -1;
  display: grid;
  grid-template-rows: repeat(16, minmax(0, 1fr));
}

.mini {
  grid-column: 2;
  padding: 14px 10px 16px 12px;
  overflow: hidden;
  font: 10.5px/1.6 var(--mono);
}

/* A small plate: the git diff and its prompt. */
.mini .line:nth-child(-n+2),
.mini .line:nth-child(n+7) {
  display: none;
}

.caption {
  grid-column: 2;
  padding: 10px 10px 14px 12px;
  border-top: 1px solid var(--hair);
}

.head,
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0 10px;
  margin: 0;
  font: 500 10px/1.5 var(--mono);
  letter-spacing: 0.05em;
}

.head {
  color: var(--dim);
}

.head > span + span::before,
.license::before {
  content: "/";
  margin-right: 10px;
  opacity: 0.6;
}

.meta > span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.plate .name {
  margin: 6px 0 8px;
  font-size: clamp(19px, 9cqi, 30px);
  line-height: 1;
  letter-spacing: -0.035em;
}

.plates a:hover .name {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

/* A large plate: the whole 見本, and the name as the sheet's headline. */

.plates > li:nth-child(3n+1) .plate {
  grid-template-columns: 14px minmax(0, 1fr);
}

.plates > li:nth-child(3n+1) .mini {
  padding: 18px var(--pad) 22px;
  font-size: clamp(12px, 2.3cqi, 17px);
}

.plates > li:nth-child(3n+1) .mini .line {
  display: block;
}

.plates > li:nth-child(3n+1) .caption {
  padding: 14px var(--pad) 18px;
}

.plates > li:nth-child(3n+1) .head,
.plates > li:nth-child(3n+1) .meta {
  font-size: 11px;
}

.plates > li:nth-child(3n+1) .name {
  margin: 8px 0 10px;
  font-size: clamp(30px, 8.4cqi, 68px);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

@media (min-width: 760px) {
  .plates {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .plates > li:nth-child(3n+1) {
    grid-column: span 2;
    grid-row: span 2;
  }

  .plates > li:nth-child(6n+4) {
    grid-column: 3 / span 2;
  }

  /* A large plate that would close the sheet alone lies flat: one row high,
     its 見本 cut to the git diff as a small plate's. */
  .plates > li:nth-child(6n+4):last-child {
    grid-row: span 1;
  }

  .plates > li:nth-child(6n+4):last-child .mini .line:nth-child(-n+2),
  .plates > li:nth-child(6n+4):last-child .mini .line:nth-child(n+7) {
    display: none;
  }

  .plate {
    grid-template-columns: 10px minmax(0, 1fr);
  }

  .mini {
    padding: 18px 16px 20px;
    font-size: clamp(11px, 3.5cqi, 13px);
  }

  .caption {
    padding: 12px 16px 18px;
  }

  .head,
  .meta {
    font-size: 11px;
  }

  .plates > li:nth-child(3n+1) .plate {
    grid-template-columns: 18px minmax(0, 1fr);
  }

  .plates > li:nth-child(3n+1) .mini {
    padding: 28px 28px 24px;
  }

  .plates > li:nth-child(3n+1) .caption {
    padding: 18px 28px 24px;
  }
}

/* 投稿と取り下げ */

.about {
  display: grid;
  border-top: 1px solid var(--rule);
  margin-top: -1px;
}

.about section {
  padding: 26px var(--pad) 30px;
}

.about section + section {
  border-top: 1px solid var(--rule);
}

.about h2 {
  margin: 10px 0 12px;
  text-transform: uppercase;
}

.about p {
  max-width: 36em;
  margin: 0 0 20px;
  color: var(--muted);
}

@media (min-width: 768px) {
  .about {
    grid-template-columns: 1fr 1fr;
  }

  .about section + section {
    border-top: 0;
    border-left: 1px solid var(--rule);
  }
}

/* ── A theme's page ─────────────────────────────────────────────────────── */

/* The facts: cells of a label over its value, two to a row on a phone; on a
   wide screen, the cells of the title block's last row, beside the button. */

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
}

.facts > div {
  min-width: 0;
  padding: 14px var(--pad) 16px;
  border-bottom: 1px solid var(--rule);
}

.facts > div:nth-child(even) {
  border-left: 1px solid var(--rule);
}

.facts > div:last-child:nth-child(odd) {
  grid-column: 1 / -1;
}

.facts dt,
.facts dd {
  margin: 0;
}

.facts dt {
  margin-bottom: 4px;
  font: 500 10px/1.4 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.facts dd {
  overflow-wrap: anywhere;
}

.qr {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  margin: 0;
  padding: 18px var(--pad);
  border-bottom: 1px solid var(--rule);
}

.qr img {
  display: block;
  width: 100%;
  height: auto;
}

.qr figcaption {
  font-size: 13px;
  color: var(--muted);
}

.file {
  margin: 20px var(--pad) 28px;
}

@media (min-width: 960px) {
  .facts {
    display: flex;
  }

  .facts > div {
    flex: 1 1 0;
    padding: 18px var(--pad);
    border-bottom: 0;
  }

  .facts > div + div {
    border-left: 1px solid var(--rule);
  }

  .facts dt {
    margin-bottom: 6px;
    font-size: 11px;
  }

  .facts dd {
    font-size: 17px;
    line-height: 1.3;
  }

  .board > .aside {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .qr {
    grid-template-columns: 1fr;
    align-content: start;
    gap: 14px;
    padding: 32px var(--pad) 0;
    border-bottom: 0;
  }

  .qr img {
    width: 168px;
  }

  .qr figcaption {
    max-width: 22em;
  }

  .file {
    margin: 24px var(--pad) 28px;
  }
}