/* Redacat — photocopy-room palette: grey desk, white paper, ink, one stamp-red accent */

@font-face {
  font-family: "Archivo Black";
  src: url("../assets/fonts/archivo-black.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --desk: #e8e8e4;
  --paper: #ffffff;
  --ink: #141412;
  --grey: #6b6b65;
  --rule: #d4d4cf;
  --stamp: #b3261e;
  --add: #0e6b52;   /* compare: content only in the new file */
  --chg: #c77400;   /* compare: changed-region outline */
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --display: "Archivo Black", system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

/* author display rules (flex etc.) must never defeat the hidden attribute */
[hidden] { display: none !important; }

html { background: var(--desk); }

body {
  font-family: var(--body);
  color: var(--ink);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.mono { font-family: var(--mono); }

a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--stamp); }

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

/* ---------- header ---------- */

.top {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.1rem clamp(1rem, 4vw, 2.5rem);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}

.mark { width: 72px; height: 31px; display: block; }

.wordmark {
  font-family: var(--display);
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  text-transform: lowercase;
}

.stamp {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stamp);
  border: 2px solid var(--stamp);
  border-radius: 3px;
  padding: 0.3rem 0.55rem;
  transform: rotate(-3deg);
  text-align: center;
  line-height: 1.35;
  user-select: none;
}
.stamp span { display: block; font-size: 0.58rem; font-weight: 400; letter-spacing: 0.18em; }

.srclink { font-size: 0.8rem; text-decoration: none; border-bottom: 1px solid var(--rule); }

/* ---------- layout ---------- */

main {
  flex: 1;
  width: min(960px, 100% - 2rem);
  margin: 0 auto;
  padding-bottom: 4rem;
}

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

h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.9rem, 5.4vw, 3.4rem);
  line-height: 1.12;
  margin: clamp(1.5rem, 5vh, 3.5rem) 0 1rem;
  letter-spacing: -0.01em;
}

.redacted-word { position: relative; display: inline-block; }
.redacted-word .unbar {
  position: absolute;
  inset: 0.05em -0.06em -0.02em -0.06em;
  background: var(--ink);
  border-radius: 2px;
  transform-origin: right center;
  animation: unredact 0.55s cubic-bezier(0.6, 0, 0.2, 1) 1.2s forwards;
}
@keyframes unredact { to { transform: scaleX(0); } }
@media (prefers-reduced-motion: reduce) {
  .redacted-word .unbar { display: none; }
}

.lede {
  max-width: 58ch;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--grey);
  margin-bottom: 2rem;
}
.lede em { color: var(--ink); font-style: normal; font-weight: 600; }

/* ---------- paper sheets ---------- */

.sheet {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(20, 20, 18, 0.05), 0 14px 34px -16px rgba(20, 20, 18, 0.28);
}

/* ---------- drop zone ---------- */

.dropzone {
  padding: clamp(2.5rem, 8vh, 5rem) 1.5rem;
  cursor: pointer;
  text-align: center;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.dropzone:hover { transform: translateY(-1px); box-shadow: 0 1px 0 rgba(20,20,18,0.05), 0 18px 40px -16px rgba(20,20,18,0.34); }
.dropzone.dragover { outline: 2px dashed var(--ink); outline-offset: -12px; }

.drop-title { font-size: clamp(1rem, 2.6vw, 1.3rem); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.drop-sub { color: var(--grey); font-size: 0.8rem; margin-top: 0.6rem; letter-spacing: 0.04em; }
.dropzone .btn { margin-top: 1.6rem; }

/* ---------- facts ---------- */

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
  margin-top: 3.5rem;
}
.fact h2 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-top: 3px solid var(--ink);
  padding-top: 0.7rem;
  margin-bottom: 0.55rem;
}
.fact p { font-size: 0.9rem; line-height: 1.55; color: var(--grey); }
.fact strong { color: var(--ink); }

/* ---------- buttons ---------- */

.btn {
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  background: var(--paper);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  border-radius: 2px;
  padding: 0.42rem 0.75rem;
  cursor: pointer;
  transition: background 0.1s ease, color 0.1s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--stamp); border-color: var(--stamp); }
.btn.ghost { border-color: var(--rule); color: var(--grey); }
.btn.ghost:hover { border-color: var(--ink); background: var(--paper); color: var(--ink); }
.btn.tool.on { background: var(--ink); color: var(--paper); }
.btn:disabled { opacity: 0.35; cursor: default; }
.btn:disabled:hover { background: var(--paper); color: var(--ink); }
.btn.primary:disabled:hover { background: var(--ink); color: var(--paper); }

/* ---------- editor ---------- */

#editor { margin-top: 1.5rem; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.fname {
  font-size: 0.78rem;
  color: var(--grey);
  max-width: 18ch;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.group { display: flex; align-items: center; gap: 0.35rem; }
.grow-right { margin-left: auto; }

.strength {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.72rem;
  color: var(--grey);
  letter-spacing: 0.05em;
}
.strength input { accent-color: var(--ink); width: 90px; }

.pager .mono { font-size: 0.8rem; min-width: 4.5ch; text-align: center; }

.note {
  font-size: 0.72rem;
  color: var(--stamp);
  margin: 0.15rem 0 0.6rem;
  letter-spacing: 0.02em;
}

.searchbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}
.searchbar input {
  flex: 1 1 240px;
  max-width: 380px;
  font-size: 0.8rem;
  padding: 0.42rem 0.6rem;
  border: 1.5px solid var(--rule);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
}
.searchbar input:focus { border-color: var(--ink); outline: none; }
#searchinfo { font-size: 0.72rem; color: var(--grey); letter-spacing: 0.03em; }

.canvas-wrap {
  padding: 0;
  line-height: 0;
  overflow: hidden;
}
#cv { display: block; width: 100%; touch-action: none; cursor: crosshair; }

.statusline {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.72rem;
  color: var(--grey);
  margin-top: 0.6rem;
  letter-spacing: 0.03em;
}

/* ---------- compare ---------- */

.alsobar { margin-top: 0.9rem; text-align: center; }

#compare { margin-top: 1.5rem; }

.cslots {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.8rem;
  align-items: stretch;
}
.cslot {
  padding: 1.3rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: center;
  justify-content: center;
}
.cslot-k {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grey);
}
.cslot.loaded .cslot-k { color: var(--stamp); }
.cslot-name { font-size: 0.78rem; color: var(--grey); overflow-wrap: anywhere; text-align: center; }
.cslot.loaded .cslot-name { color: var(--ink); }
.cswap { align-self: center; }
.csample-row { color: var(--grey); font-size: 0.78rem; margin: 0.7rem 0 0.4rem; text-align: center; }

#compare .toolbar { margin-top: 1.1rem; }
.csum { font-size: 0.72rem; color: var(--stamp); letter-spacing: 0.04em; }

.rangebar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.8rem;
  font-size: 0.74rem;
  color: var(--grey);
  letter-spacing: 0.03em;
  margin: -0.1rem 0 0.8rem;
}
.rangek { font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; font-size: 0.68rem; }
.rangeside { display: inline-flex; align-items: center; gap: 0.3rem; }
.rangein {
  width: 4.4ch;
  font: inherit;
  text-align: center;
  padding: 0.3rem 0.2rem;
  border: 1.5px solid var(--rule);
  border-radius: 2px;
  background: var(--paper);
  color: var(--ink);
  -moz-appearance: textfield;
}
.rangein::-webkit-outer-spin-button, .rangein::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.rangein:focus { border-color: var(--ink); outline: none; }
.rangeinfo { font-size: 0.72rem; }

.cstrip {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding: 0.4rem 2px 0.6rem;
  margin-bottom: 0.7rem;
}
.pcell {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  font-family: var(--mono);
}
.pcell .pthumb {
  width: 46px;
  height: auto;
  display: block;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-bottom-width: 3px;
}
.pcell.s-changed .pthumb { border-color: var(--chg); }
.pcell.s-added .pthumb { border-color: var(--add); }
.pcell.s-removed .pthumb { border-color: var(--stamp); }
.pcell.s-flow .pthumb { border-color: var(--chg); border-bottom-style: dotted; }
.pcell.s-pending .pthumb { opacity: 0.45; }
.pcell.current .pthumb { outline: 2px solid var(--ink); outline-offset: 1px; }
.pcell .pnum { font-size: 0.62rem; color: var(--grey); }
.pcell.current .pnum { color: var(--ink); font-weight: 700; }
.cstrip.nothumbs .pcell { border: 1px solid var(--rule); border-radius: 2px; padding: 0.25rem 0.55rem; }
.cstrip.nothumbs .pcell.s-changed { border-color: var(--chg); }
.cstrip.nothumbs .pcell.s-added { border-color: var(--add); }
.cstrip.nothumbs .pcell.s-removed { border-color: var(--stamp); }
.cstrip.nothumbs .pcell.s-flow { border-color: var(--chg); border-style: dotted; }
.cstrip.nothumbs .pcell.current { outline: 2px solid var(--ink); outline-offset: 1px; }

.cpair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  align-items: start;
}
.cfig { margin: 0; min-width: 0; }
.cfig figcaption {
  font-size: 0.7rem;
  color: var(--grey);
  margin-bottom: 0.3rem;
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#compare canvas { display: block; width: 100%; }
#cvO { touch-action: none; }

.legend-item { margin-left: 0.9em; }
.legend-item:first-child { margin-left: 0; }
.swatch {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  border-radius: 2px;
  margin-right: 0.35em;
}
.swatch.sdel { background: var(--stamp); }
.swatch.sins { background: var(--add); }
.swatch.schg { background: transparent; border: 1.5px dashed var(--chg); }

.ctextwrap { margin-top: 0.8rem; padding: 0.6rem 0.9rem; }
.ctextwrap summary { cursor: pointer; font-size: 0.75rem; letter-spacing: 0.05em; color: var(--grey); }
.ctext {
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.8;
  padding: 0.6rem 0.2rem 0.3rem;
  color: var(--ink);
  overflow-wrap: anywhere;
}
.ctext .tdel {
  background: rgba(179, 38, 30, 0.13);
  color: var(--stamp);
  text-decoration: line-through;
  padding: 0 2px;
  border-radius: 2px;
}
.ctext .tins {
  background: rgba(14, 107, 82, 0.13);
  color: var(--add);
  padding: 0 2px;
  border-radius: 2px;
}
.ctext .tmuted { color: var(--grey); }
.ctext .tmov {
  color: var(--grey);
  text-decoration: underline dotted;
  text-underline-offset: 3px;
  padding: 0 2px;
}
.swatch.smov { background: transparent; border-bottom: 2px dotted var(--grey); border-radius: 0; height: 0.45em; }

.doctext {
  padding: 1rem 1.2rem;
  max-height: 72vh;
  overflow-y: auto;
}
.tfold {
  border: 1px solid var(--rule);
  background: var(--desk);
  color: var(--grey);
  font-family: var(--mono);
  font-size: 0.7rem;
  border-radius: 2px;
  padding: 0 0.5rem;
  cursor: pointer;
  margin: 0 0.25rem;
}
.tfold:hover { border-color: var(--ink); color: var(--ink); }

/* ---------- busy overlay ---------- */

.busy {
  position: fixed;
  inset: 0;
  background: rgba(232, 232, 228, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.busy-card { padding: 1.1rem 1.6rem; font-size: 0.85rem; letter-spacing: 0.04em; }

/* ---------- footer ---------- */

footer {
  padding: 1.2rem clamp(1rem, 4vw, 2.5rem);
  font-size: 0.72rem;
  color: var(--grey);
  letter-spacing: 0.03em;
}
footer a { color: var(--grey); }

/* ---------- responsive ---------- */

@media (max-width: 720px) {
  .facts { grid-template-columns: 1fr; gap: 1.5rem; }
  .srclink { display: none; }
  .fname { max-width: 100%; flex-basis: 100%; }
  .grow-right { margin-left: 0; flex-basis: 100%; justify-content: flex-end; }
  .cslots { grid-template-columns: 1fr; }
  .cswap { justify-self: center; transform: rotate(90deg); }
  .cpair { grid-template-columns: 1fr; }
}