/* ─── PDF Workshop modal ──────────────────────────────────────
   A larger sibling of the conversion-notice modal. The workshop is
   a full editing surface, so it gets more real-estate and a sticky
   actions bar — but it stays inside the same drafting-room
   aesthetic (vellum panel, blueprint ink, drafted-line borders).
   ─────────────────────────────────────────────────────────────── */
.workshop-host {
  position: fixed; inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1200;
}
.workshop-host.open { display: flex; }
.workshop-host[hidden] { display: none !important; }

.workshop-backdrop {
  position: absolute; inset: 0;
  background: rgba(8, 24, 42, 0.78);
  backdrop-filter: blur(3px);
}
[data-theme="light"] .workshop-backdrop {
  background: rgba(74, 66, 49, 0.50);
}

.workshop {
  position: relative;
  background: var(--panel);
  border: 1.5px solid var(--rule);
  border-radius: 1px;
  width: min(1100px, 96vw);
  max-height: 92vh;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  color: var(--ink);
  box-shadow:
    0 0 0 1px var(--border) inset,
    0 18px 52px rgba(0,0,0,0.42);
}
[data-theme="light"] .workshop {
  box-shadow:
    0 0 0 1px var(--border) inset,
    0 14px 36px rgba(60,40,20,0.26);
}

/* Workshop header — title-block stripe */
.workshop-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 20px;
  background: var(--panel-hi);
  border-bottom: 1.5px solid var(--rule);
  position: relative;
}
.workshop-head::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -4px;
  height: 1px;
  background: var(--rule);
  opacity: 0.5;
}
.workshop-head h2 {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.workshop-close {
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  width: 28px; height: 28px;
  font-family: var(--mono);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1px;
  transition: color .15s, border-color .15s;
}
.workshop-close:hover { color: var(--rust); border-color: var(--rust); }

/* Extras tabs — drafting tab strip */
.workshop-tabs {
  display: flex;
  gap: 0;
  padding: 8px 20px 0;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.ws-tab {
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 0;
  color: var(--ink-faint);
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  cursor: pointer;
  border-radius: 1px 1px 0 0;
  position: relative;
  bottom: -1px;
}
.ws-tab:hover  { color: var(--ink); }
.ws-tab.on {
  color: var(--blueprint);
  border-color: var(--border);
  background: var(--panel-hi);
}
[data-theme="light"] .ws-tab.on { color: var(--blueprint-lo); }

/* Workshop body — split into thumbnails (top) + extras controls (bottom) */
.workshop-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  gap: 0;
  overflow: hidden;
}
.workshop-grid-pane {
  overflow-y: auto;
  padding: 16px 18px;
  border-right: 1px solid var(--border);
  background: var(--panel-lo);
}
.workshop-extras {
  padding: 16px 18px;
  overflow-y: auto;
  background: var(--panel);
}

.ws-empty {
  padding: 30px;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink-faint);
}

/* Page-thumbnail grid */
.ws-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
  align-items: start;
}

.ws-tile {
  position: relative;
  background: var(--panel-hi);
  border: 1.5px solid var(--rule);
  border-radius: 1px;
  cursor: grab;
  user-select: none;
  display: flex;
  flex-direction: column;
  transition: border-color .15s, transform .08s, box-shadow .15s;
}
.ws-tile:hover {
  border-color: var(--blueprint);
  box-shadow: 0 2px 14px rgba(20,45,74,0.18);
}
[data-theme="dark"] .ws-tile:hover { box-shadow: 0 2px 14px rgba(107,184,240,0.22); }
.ws-tile.selected {
  border-color: var(--rust);
  box-shadow: 0 0 0 2px var(--rust) inset;
}
.ws-tile.dragging {
  opacity: 0.45;
  cursor: grabbing;
}
.ws-tile.drop-before { box-shadow: -3px 0 0 var(--blueprint); }
.ws-tile.drop-after  { box-shadow:  3px 0 0 var(--blueprint); }
.ws-tile.deleted {
  opacity: 0.45;
  cursor: not-allowed;
}
.ws-tile.deleted .ws-tile-strike {
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* Big red X — drafting "deleted" mark */
  background:
    linear-gradient(135deg, transparent 47%, var(--rust) 48%, var(--rust) 52%, transparent 53%),
    linear-gradient( 45deg, transparent 47%, var(--rust) 48%, var(--rust) 52%, transparent 53%);
  opacity: 0.5;
}

.ws-tile-frame {
  position: relative;
  margin: 8px;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  /* keep aspect roughly portrait by default; <img> will override */
  aspect-ratio: 3 / 4;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.ws-tile-canvas { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.ws-tile-canvas img {
  max-width: 100%;
  max-height: 100%;
  transition: transform .25s ease;
  pointer-events: none;
}
.ws-tile-skel {
  /* placeholder shimmer while pdf.js is rendering */
  width: 100%; height: 100%;
  background:
    linear-gradient(110deg, transparent 0%, transparent 40%,
      rgba(20,45,74,0.08) 50%, transparent 60%, transparent 100%),
    var(--panel-lo);
  background-size: 220% 100%, 100% 100%;
  animation: ws-shimmer 1.6s linear infinite;
}
@keyframes ws-shimmer { from { background-position: 220% 0, 0 0; } to { background-position: -120% 0, 0 0; } }
.ws-tile-fail {
  font-family: var(--mono);
  font-size: 22px;
  color: var(--bad);
}

.ws-tile-doc {
  position: absolute;
  top: 4px; left: 4px;
  background: var(--blueprint);
  color: var(--bg-main);
  font-family: var(--mono);
  font-weight: 700;
  font-size: 9.5px;
  padding: 2px 6px;
  letter-spacing: 0.10em;
  border-radius: 1px;
  z-index: 2;
}
[data-theme="light"] .ws-tile-doc { background: var(--blueprint-lo); }

.ws-tile-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink-faint);
  padding: 0 10px 4px;
}
.ws-tile-pos { color: var(--rust); font-weight: 700; }

.ws-tile-actions {
  display: flex;
  border-top: 1px solid var(--border);
}
.ws-tile-actions button {
  flex: 1;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--border);
  padding: 6px 0;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink-soft);
  cursor: pointer;
  transition: background .12s, color .12s;
}
.ws-tile-actions button:last-child { border-right: 0; }
.ws-tile-actions button:hover {
  background: var(--hover);
  color: var(--blueprint);
}
[data-theme="light"] .ws-tile-actions button:hover { color: var(--blueprint-lo); }

/* Extras panel rows */
.ws-extra-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.ws-extra-label {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink-soft);
  min-width: 80px;
}
.ws-extra-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ws-extra-help {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.55;
  color: var(--ink-faint);
  border-left: 2px solid var(--border);
  padding-left: 10px;
  margin-top: 12px;
}
.ws-extra-help code {
  background: var(--panel-lo);
  padding: 1px 5px;
  font-size: 10.5px;
  color: var(--blueprint);
  border-radius: 1px;
}
[data-theme="light"] .ws-extra-help code { color: var(--blueprint-lo); }

.ws-text-input,
.ws-select-input {
  flex: 1;
  min-width: 0;
  background: var(--panel-hi);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  border-radius: 1px;
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 12px;
}
.ws-text-input:focus,
.ws-select-input:focus { outline: none; border-color: var(--blueprint); }
textarea.ws-text-input { resize: vertical; min-height: 56px; font-family: var(--mono); }
.ws-range-input { flex: 1; accent-color: var(--rust); }
.ws-color-input {
  width: 40px; height: 28px;
  border: 1px solid var(--border-strong);
  background: var(--panel-hi);
  cursor: pointer;
  padding: 2px;
}
.ws-extra-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  cursor: pointer;
}
.ws-extra-checkbox input { accent-color: var(--blueprint); }

/* Sticky bottom actions */
.workshop-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 20px;
  background: var(--panel-hi);
  border-top: 1.5px solid var(--rule);
  position: relative;
}
.workshop-foot::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 4px;
  height: 1px;
  background: var(--rule);
  opacity: 0.5;
}
.workshop-foot-info {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
}
.workshop-foot-actions {
  display: flex;
  gap: 8px;
}

/* Row-action button: open the workshop for a PDF row */
.icon-btn.workshop {
  color: var(--rust);
  border-color: var(--rust);
}
[data-theme="light"] .icon-btn.workshop {
  color: var(--rust-lo);
  border-color: var(--rust-lo);
}
.icon-btn.workshop:hover {
  background: var(--rust);
  color: var(--bg-main);
}
[data-theme="light"] .icon-btn.workshop:hover { background: var(--rust-lo); color: var(--bg-main); }

/* Responsive — collapse extras panel under the grid on mobile */
@media (max-width: 760px) {
  .workshop { width: 96vw; max-height: 94vh; }
  .workshop-body {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
  }
  .workshop-grid-pane {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    max-height: 50vh;
  }
  .workshop-extras { max-height: 38vh; }
  .ws-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
  }
  .workshop-head h2 { font-size: 14px; }
  .ws-tile-meta { font-size: 9px; }
  .ws-tile-actions button { font-size: 12px; padding: 5px 0; }
}