/* editor.css — chrome for editor.html. Builds on site.css tokens.
   Layout: fixed toolbar on top, then a 3-column row that fills the viewport:
   thumbnail rail | scrolling page canvas | contextual side panel. */

.editor-body {
  height: 100vh;
  overflow: hidden;               /* the canvas column scrolls, not the page */
}

.editor-shell {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ---------- top toolbar ---------- */

.ed-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--sheet);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  z-index: 5;
}

.ed-toolbar .brand { margin-right: 8px; font-size: 16px; }

.ed-sep { width: 1px; align-self: stretch; background: var(--line); margin: 2px 4px; }

.tool-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 52px;
  padding: 5px 8px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: none;
  color: var(--ink-soft);
  font: inherit;
  font-size: 11px;
  cursor: pointer;
}
.tool-btn svg { width: 20px; height: 20px; }
.tool-btn:hover { background: var(--desk); color: var(--ink); }
.tool-btn[aria-pressed="true"] {
  background: var(--accent-tint);
  border-color: var(--accent);
  color: var(--accent);
}
.tool-btn:disabled { opacity: 0.4; cursor: default; background: none; }

.ed-toolbar .spacer { margin-left: auto; }

.zoom-group { display: inline-flex; align-items: center; gap: 4px; }
.zoom-group .zoom-label { font-family: var(--font-mono); font-size: 13px; min-width: 48px; text-align: center; }

/* ---------- main 3-column row ---------- */

.ed-main {
  display: flex;
  flex: 1;
  min-height: 0;
}

/* thumbnail rail */
.ed-rail {
  width: 168px;
  flex: none;
  background: var(--desk-deep);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  padding: 10px 8px;
}
.ed-rail h2 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); margin: 2px 4px 10px; }

.thumb {
  position: relative;
  margin: 0 auto 12px;
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 1px 2px rgba(22,24,30,0.08);
  cursor: pointer;
  overflow: hidden;
}
.thumb.selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-tint); }
.thumb.dragging { opacity: 0.4; }
.thumb.drop-before { box-shadow: inset 0 3px 0 var(--accent); }
.thumb.drop-after { box-shadow: inset 0 -3px 0 var(--accent); }
.thumb canvas, .thumb .thumb-blank { display: block; width: 100%; }
.thumb .thumb-blank {
  background: repeating-linear-gradient(45deg, #fff, #fff 6px, #f3f4f7 6px, #f3f4f7 12px);
  color: var(--ink-faint); font-size: 11px; text-align: center; padding: 24px 4px;
}
.thumb .thumb-num {
  position: absolute; left: 4px; bottom: 4px;
  font-family: var(--font-mono); font-size: 10px;
  background: rgba(22,24,30,0.7); color: #fff; padding: 1px 5px; border-radius: 3px;
}
.thumb-ops {
  display: flex; justify-content: center; gap: 2px;
  margin: -6px auto 12px; max-width: 150px;
}
.thumb-ops button {
  width: 26px; height: 24px; border: 1px solid var(--line); background: var(--sheet);
  border-radius: 5px; cursor: pointer; color: var(--ink-soft); font-size: 12px;
  display: inline-flex; align-items: center; justify-content: center;
}
.thumb-ops button:hover { background: var(--desk); color: var(--ink); }
.thumb-ops button.danger:hover { background: var(--error-bg); color: var(--error); }

.rail-add {
  width: 100%; padding: 8px; margin-top: 4px;
  border: 1px dashed var(--line); border-radius: 6px; background: none;
  color: var(--ink-soft); font: inherit; font-size: 12.5px; cursor: pointer;
}
.rail-add:hover { border-color: var(--accent); color: var(--accent); }

/* scrolling canvas column */
.ed-canvas-col {
  flex: 1;
  min-width: 0;
  overflow: auto;
  background: var(--desk);
  padding: 24px 0;
}
.ed-pages { width: max-content; margin: 0 auto; }

.page-slot {
  position: relative;
  margin: 0 auto 22px;
  background: var(--sheet);
  box-shadow: 0 1px 2px rgba(22,24,30,0.12), 0 10px 24px rgba(22,24,30,0.10);
}
.page-slot canvas.page-canvas { position: absolute; inset: 0; display: block; pointer-events: none; }
.page-slot .vector-layer { position: absolute; inset: 0; pointer-events: none; overflow: visible; }
.page-slot .anno-layer { position: absolute; inset: 0; pointer-events: none; }
.page-slot .sel-layer { position: absolute; inset: 0; pointer-events: none; }
.page-slot .interaction-layer { position: absolute; inset: 0; }
/* a text annotation being edited takes pointer + keyboard directly */
.page-slot.text-editing .interaction-layer { pointer-events: none; }
.page-slot .anno.text.editing { pointer-events: auto; z-index: 2; }
.ed-pages { display: flex; flex-direction: column; align-items: center; }

/* tool-driven cursors */
.ed-canvas-col[data-tool="select"] .interaction-layer { cursor: default; }
.ed-canvas-col[data-tool="text"] .interaction-layer,
.ed-canvas-col[data-tool="cover"] .interaction-layer,
.ed-canvas-col[data-tool="highlight"] .interaction-layer,
.ed-canvas-col[data-tool="rect"] .interaction-layer,
.ed-canvas-col[data-tool="line"] .interaction-layer,
.ed-canvas-col[data-tool="image"] .interaction-layer { cursor: crosshair; }
.ed-canvas-col[data-tool="draw"] .interaction-layer { cursor: crosshair; }

/* annotation elements (positioned in screen space by JS) */
.anno { position: absolute; box-sizing: border-box; }
.anno.text { white-space: pre-wrap; overflow: hidden; line-height: 1.2; color: #16181e; }
.anno.text.editing { outline: 2px solid var(--accent); background: rgba(255,255,255,0.7); }
.anno.cover { background: #fff; }
.anno.highlight { }
.anno.rect { border: 1px solid #16181e; background: transparent; }
.anno.image img { width: 100%; height: 100%; display: block; }

/* redact reads as consequential: solid black with a hatched border so it can
   never be mistaken for an ordinary filled rectangle */
.anno.redact {
  background: #000;
  outline: 2px dashed #b3261e;
  outline-offset: -2px;
  background-image: repeating-linear-gradient(45deg, rgba(179,38,30,0.55) 0 4px, transparent 4px 8px);
}
.erase-note {
  position: absolute;
  font-size: 10px;
  line-height: 1.25;
  color: var(--error);
  background: rgba(255,255,255,0.85);
  border-left: 2px solid var(--error);
  padding: 1px 4px;
  pointer-events: none;
  z-index: 2;
}

.anno.selected { outline: 1.5px solid var(--accent); }
.handle {
  position: absolute; width: 10px; height: 10px; margin: -5px 0 0 -5px;
  background: #fff; border: 1.5px solid var(--accent); border-radius: 2px; z-index: 3;
}
.handle.nw { cursor: nwse-resize; } .handle.ne { cursor: nesw-resize; }
.handle.sw { cursor: nesw-resize; } .handle.se { cursor: nwse-resize; }
.rubber {
  position: absolute; border: 1px dashed var(--accent);
  background: rgba(35,55,198,0.08); pointer-events: none; z-index: 4;
}

/* ---------- side panel ---------- */
.ed-panel {
  width: 260px; flex: none;
  background: var(--sheet);
  border-left: 1px solid var(--line);
  overflow-y: auto;
  padding: 14px;
}
.ed-panel[hidden] { display: none; }
.ed-panel h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-faint); margin: 0 0 12px; }
.panel-row { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; font-size: 13px; color: var(--ink-soft); font-weight: 600; }
.panel-row select, .panel-row input[type="text"], .panel-row input[type="number"], .panel-row textarea {
  font: inherit; font-size: 14px; font-weight: 400; color: var(--ink);
  padding: 7px 9px; border: 1px solid var(--line); border-radius: 7px; background: var(--sheet);
}
.panel-row textarea { min-height: 60px; resize: vertical; }

.swatches { display: flex; gap: 6px; flex-wrap: wrap; }
.swatch { width: 24px; height: 24px; border-radius: 5px; border: 2px solid transparent; cursor: pointer; box-shadow: inset 0 0 0 1px rgba(0,0,0,0.15); }
.swatch[aria-pressed="true"] { border-color: var(--accent); }

.style-toggle {
  width: 30px; height: 28px; border: 1px solid var(--line); border-radius: 5px;
  background: var(--sheet); cursor: pointer; font-weight: 700; font-size: 14px; color: var(--ink);
}
.style-toggle:nth-child(2) { font-style: italic; font-weight: 400; }
.style-toggle[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-tint); color: var(--accent); }

.form-field { margin-bottom: 12px; }
.form-field label { display: block; font-size: 12.5px; color: var(--ink-soft); font-weight: 600; margin-bottom: 3px; }
.form-field input[type="text"], .form-field select { width: 100%; font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; }
.form-field.inline { display: flex; align-items: center; gap: 8px; }
.form-field.inline label { margin: 0; }

.panel-note {
  font-size: 12px; font-weight: 400; color: var(--ink-soft);
  background: var(--desk); border-radius: 6px; padding: 8px 10px; margin-top: 6px;
}
.panel-note.warn { color: var(--error); background: var(--error-bg); }

/* ---------- modals ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(22,24,30,0.45);
  display: flex; align-items: center; justify-content: center; z-index: 50;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: var(--sheet); border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  padding: 22px; width: min(520px, 92vw); max-height: 90vh; overflow: auto;
}
.modal h2 { margin: 0 0 6px; font-size: 20px; }
.modal p { color: var(--ink-soft); font-size: 14px; margin: 0 0 14px; }
.modal .modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; flex-wrap: wrap; }

.sig-pad { width: 100%; height: 200px; border: 1px dashed var(--line); border-radius: 8px; background: var(--sheet); touch-action: none; cursor: crosshair; }
.sig-tools { display: flex; align-items: center; gap: 12px; margin-top: 10px; }

/* ---------- open / empty state ---------- */
.ed-empty {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; color: var(--ink-soft); text-align: center; padding: 40px;
}
/* author display rules beat the UA [hidden] rule, so restore hiding explicitly */
.ed-empty[hidden], .ed-pages[hidden] { display: none; }
.ed-empty .dropzone { max-width: 460px; }

.ed-footer {
  padding: 6px 14px; border-top: 1px solid var(--line); background: var(--sheet);
  display: flex; align-items: center; gap: 14px; font-size: 12.5px; color: var(--ink-soft);
}
.ed-footer .spacer { margin-left: auto; }

.busy-line { font-family: var(--font-mono); font-size: 12.5px; color: var(--ink-soft); }