/* ================================================================
   Interpretation workspace
   A thinking surface: library of observations, a free board, and the
   manuscript beside it. It looks nothing like Observation on purpose.
   ================================================================ */

.interp { display: none; }

body[data-mode="interpret"] { overflow: hidden; }
body[data-mode="interpret"] main,
body[data-mode="interpret"] .navigation-zone { display: none; }

body[data-mode="interpret"] .interp {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: var(--iv-lib-w, 272px) 1fr var(--iv-text-w, 380px);
  border-top: 1px solid var(--hairline);
  font-family: var(--ui-font);
  color: var(--text);
}

.interp.no-lib { --iv-lib-w: 0px; }
.interp.no-text { --iv-text-w: 0px; }
.interp.no-lib .iv-library,
.interp.no-text .iv-text { display: none; }

/* ---------- Library ---------- */

.iv-library,
.iv-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--page-bg);
  overflow: hidden;
}

/* Each pane keeps its own column, so hiding one never moves the board. */
.iv-library { grid-column: 1; grid-row: 1; border-right: 1px solid var(--hairline); }
.iv-board { grid-column: 2; grid-row: 1; }
.iv-text { grid-column: 3; grid-row: 1; border-left: 1px solid var(--hairline); }

.iv-pane-head {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px 8px;
}

.iv-pane-title {
  flex: 1;
  min-width: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.iv-tabs { display: flex; gap: 4px; padding: 0 14px 8px; }

.iv-tab {
  border: 0;
  border-radius: 7px;
  padding: 6px 10px;
  background: transparent;
  color: var(--muted);
  font: 12.5px/1 var(--ui-font);
  cursor: pointer;
}

.iv-tab.active { background: color-mix(in srgb, var(--text) 9%, transparent); color: var(--text); font-weight: 500; }

.iv-search {
  margin: 0 14px 10px;
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 7px 9px;
  background: color-mix(in srgb, var(--text) 4%, transparent);
  color: var(--text);
  font: 13px/1.2 var(--ui-font);
  outline: none;
}

.iv-lib-list { flex: 1; overflow-y: auto; padding: 0 8px 40px; }

.iv-lib-section { margin-top: 14px; }

.iv-lib-section-title {
  padding: 0 6px 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .06em;
}

.iv-lib-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 0;
  border-radius: 8px;
  padding: 7px 6px;
  background: transparent;
  color: var(--text);
  text-align: left;
  font: 13px/1.3 var(--ui-font);
  cursor: grab;
}

.iv-lib-row:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }
.iv-lib-row .label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.iv-lib-row .label.wrap { white-space: normal; }
.iv-lib-row .n { color: var(--muted); font-size: 12px; }
.iv-lib-row .on { color: var(--ink); font-size: 11px; }
.iv-lib-row.all .label { color: var(--muted); }

.iv-lib-empty { padding: 6px; color: var(--muted); font-size: 12.5px; line-height: 1.5; }

.iv-swatch {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 3px;
  background: var(--sw, var(--ink));
}

/* ---------- Board ---------- */

.iv-board {
  position: relative;
  min-width: 0;
  overflow: hidden;
  container-type: inline-size;
}

/* A narrow board keeps its tools on one line. */
@container (max-width: 640px) {
  .iv-tool { min-width: 40px; }
  .iv-tool span { display: none; }
  .iv-zoom { bottom: 76px; }
}

.iv-viewport {
  position: absolute;
  inset: 0;
  z-index: 0;
  isolation: isolate;
  overflow: hidden;
  touch-action: none;
  background-color: color-mix(in srgb, var(--text) 2.5%, var(--page-bg));
  background-image: radial-gradient(circle, color-mix(in srgb, var(--text) 16%, transparent) 1px, transparent 1.2px);
  cursor: default;
}

.iv-viewport.tool-text { cursor: text; }
.iv-viewport.tool-frame,
.iv-viewport.tool-shape,
.iv-viewport.tool-arrow,
.iv-viewport.tool-pen { cursor: crosshair; }
.iv-viewport.panning,
.iv-viewport.tool-hand { cursor: grab; }

.iv-world {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  transform-origin: 0 0;
}

.iv-links,
.iv-ghost {
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: visible;
  pointer-events: none;
}

.iv-links { z-index: 5000; }

.iv-links path.line { fill: none; stroke: var(--muted); stroke-width: 1.6; }
.iv-links path.line.selected { stroke: var(--ink); stroke-width: 2.2; }
.iv-links path.hit { fill: none; stroke: transparent; stroke-width: 14; pointer-events: stroke; cursor: pointer; }
.iv-ghost path { fill: none; stroke: var(--ink); stroke-width: 1.6; stroke-dasharray: 5 5; }
.iv-ghost path.ink { stroke: var(--text); stroke-dasharray: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }

.iv-link-label {
  position: absolute;
  z-index: 5001;
  transform: translate(-50%, -50%);
  padding: 2px 8px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--page-bg);
  color: var(--muted);
  font: italic 12px/1.4 var(--ui-font);
  white-space: nowrap;
  cursor: pointer;
}

.iv-link-label.selected { border-color: var(--ink); color: var(--ink); }
.iv-link-label.supports { color: #66800B; }
.iv-link-label.problem { color: #AF3029; }

.iv-item { position: absolute; }
.iv-item.iv-linking > .iv-card,
.iv-item.iv-linking > .iv-frame-box { box-shadow: 0 0 0 2px var(--ink); outline: 2px dashed var(--ink); outline-offset: 4px; }
/* The card you are working with comes to the front. */
.iv-item.selected:not(.kind-frame) { z-index: 4000 !important; }

.iv-item.selected > .iv-card,
.iv-item.selected > .iv-frame-box { box-shadow: 0 0 0 2px var(--ink); }

.iv-card {
  position: relative;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: color-mix(in srgb, var(--text) 4%, var(--page-bg));
  box-shadow: 0 1px 2px rgba(0,0,0,.06);
  cursor: default;
}

.iv-edit {
  min-height: 1.4em;
  padding: 12px 14px;
  font: 14px/1.5 var(--ui-font);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  outline: none;
}

.iv-edit:empty::before { content: attr(data-placeholder); color: var(--muted); }
.iv-edit[contenteditable="plaintext-only"],
.iv-edit[contenteditable="true"] { cursor: text; }

.kind-heading .iv-card { border-color: transparent; background: transparent; box-shadow: none; }
.kind-heading .iv-edit {
  padding: 4px 6px;
  font: 500 28px/1.2 var(--reader-font);
  letter-spacing: -0.01em;
}

.iv-card.hypothesis { border-left: 3px solid var(--ink); }

.iv-kicker {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px 0;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.iv-kicker + .iv-edit { padding-top: 6px; }

.iv-conf { margin-left: auto; color: var(--ink); letter-spacing: .04em; }

.iv-evidence {
  margin: 0 14px;
  padding: 8px 0 10px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
}

.iv-evidence + .iv-evidence { padding-top: 6px; }

.iv-evidence-title {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.iv-evidence-title.supports { color: #66800B; }
.iv-evidence-title.problem { color: #AF3029; }

.iv-evidence button {
  display: block;
  max-width: 100%;
  border: 0;
  padding: 2px 0;
  background: transparent;
  color: var(--text);
  font: 12px/1.35 var(--ui-font);
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.iv-evidence button:hover { color: var(--ink); }
.iv-evidence .hint { color: var(--muted); line-height: 1.4; }

/* Observation and passage cards: evidence pulled from the text */
.kind-obs .iv-card,
.kind-passage .iv-card { background: var(--page-bg); }

.iv-obs-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 11px 14px 4px;
}

.iv-obs-type {
  color: var(--muted);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
}

.iv-obs-count { margin-left: auto; color: var(--muted); font-size: 12px; }

.iv-obs-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px 11px;
  font: 500 17px/1.3 var(--reader-font);
}

.iv-obs-note {
  margin: -4px 14px 11px;
  color: var(--muted);
  font: italic 13px/1.45 var(--ui-font);
}

.iv-occ-list {
  max-height: 240px;
  overflow-y: auto;
  border-top: 1px solid var(--hairline);
  padding: 6px 0;
}

.iv-occ {
  display: block;
  width: 100%;
  border: 0;
  padding: 5px 14px;
  background: transparent;
  color: var(--muted);
  font: 13px/1.45 var(--reader-font);
  text-align: left;
  cursor: pointer;
}

.iv-occ:hover { background: color-mix(in srgb, var(--text) 5%, transparent); color: var(--text); }
.iv-occ b { color: var(--text); font-weight: 600; }

.iv-obs-toggle {
  display: block;
  width: 100%;
  border: 0;
  border-top: 1px solid var(--hairline);
  padding: 7px 14px;
  background: transparent;
  color: var(--muted);
  font: 12px/1 var(--ui-font);
  text-align: left;
  cursor: pointer;
}

.iv-obs-toggle:hover { color: var(--text); }

.iv-missing { padding: 12px 14px; color: var(--muted); font-style: italic; font-size: 13px; }

.iv-passage-text {
  padding: 2px 14px 12px;
  font: 15px/1.6 var(--reader-font);
}

/* Boxes (groups) and circles: shapes you think inside of */
.kind-frame,
.kind-shape,
.kind-ink { pointer-events: none; }

.iv-frame-box {
  position: absolute;
  inset: 0;
  border: 1.5px solid color-mix(in srgb, var(--text) 22%, transparent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--text) 2.5%, transparent);
}

.iv-frame-title {
  position: absolute;
  left: 10px;
  top: -12px;
  max-width: calc(100% - 20px);
  border-radius: 7px;
  background: var(--page-bg);
  pointer-events: auto;
  cursor: move;
}

.iv-frame-title .iv-edit {
  padding: 3px 8px;
  color: var(--muted);
  font: 600 12px/1.4 var(--ui-font);
  letter-spacing: .03em;
}

.iv-shape-svg,
.iv-ink-svg { position: absolute; left: 0; top: 0; overflow: visible; }

.iv-shape-svg .vis { fill: none; stroke: color-mix(in srgb, var(--text) 55%, transparent); stroke-width: 2; }
.iv-ink-svg .vis { fill: none; stroke: var(--text); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; opacity: .8; }
.iv-shape-svg .hit,
.iv-ink-svg .hit { fill: none; stroke: transparent; stroke-width: 14; pointer-events: stroke; cursor: move; }
.iv-item.selected .vis { stroke: var(--ink); opacity: 1; }

.iv-handle {
  position: absolute;
  right: -6px;
  bottom: -6px;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  background: var(--page-bg);
  pointer-events: auto;
  cursor: nwse-resize;
  display: none;
}

.iv-item.selected .iv-handle { display: block; }

.iv-marquee {
  position: absolute;
  border: 1px solid var(--ink);
  background: color-mix(in srgb, var(--ink) 8%, transparent);
  pointer-events: none;
  z-index: 6000;
}

.iv-flash > .iv-card,
.iv-flash > .iv-frame-box { animation: iv-flash 1.4s ease-out; }

@keyframes iv-flash {
  0%, 40% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--ink) 45%, transparent); }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.iv-empty {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  max-width: 360px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.6;
  text-align: center;
  pointer-events: none;
}

.iv-empty strong { display: block; margin-bottom: 4px; color: var(--text); font: 500 19px/1.3 var(--reader-font); }

/* ---------- Board chrome ---------- */

.iv-bar {
  position: absolute;
  left: 12px;
  right: 12px;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: none;
}

.iv-bar > * { pointer-events: auto; }
.iv-bar .spacer { flex: 1; pointer-events: none; }

.iv-chip-button {
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  border: 1px solid var(--hairline);
  border-radius: 9px;
  padding: 0 11px;
  background: var(--panel-bg);
  color: var(--text);
  font: 13px/1 var(--ui-font);
  cursor: pointer;
}

.iv-chip-button:hover { background: color-mix(in srgb, var(--text) 6%, var(--page-bg)); }
.iv-chip-button.off { color: var(--muted); }
.iv-chip-button .caret { color: var(--muted); font-size: 10px; }

.iv-board-menu {
  position: absolute;
  top: 50px;
  left: 12px;
  z-index: 20;
  width: 250px;
  padding: 6px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--panel-bg);
  box-shadow: 0 14px 36px rgba(0,0,0,.18);
  display: none;
}

.iv-board-menu.open { display: block; }

.iv-menu-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: 0;
  border-radius: 8px;
  padding: 8px 9px;
  background: transparent;
  color: var(--text);
  font: 13px/1.2 var(--ui-font);
  text-align: left;
  cursor: pointer;
}

.iv-menu-row:hover { background: color-mix(in srgb, var(--text) 7%, transparent); }
.iv-menu-row.active { font-weight: 600; }
.iv-menu-row .n { margin-left: auto; color: var(--muted); font-size: 12px; font-weight: 400; }
.iv-menu-row.danger { color: #AF3029; }
.iv-menu-sep { height: 1px; margin: 5px 4px; background: var(--hairline); }

.iv-menu-input {
  width: 100%;
  border: 1px solid var(--hairline);
  border-radius: 7px;
  padding: 7px 9px;
  background: transparent;
  color: var(--text);
  font: 13px/1.2 var(--ui-font);
  outline: none;
}

.iv-tools {
  position: absolute;
  left: 50%;
  bottom: 16px;
  z-index: 10;
  transform: translateX(-50%);
  display: flex;
  gap: 2px;
  padding: 5px;
  border: 1px solid var(--hairline);
  border-radius: 13px;
  background: var(--panel-bg);
  box-shadow: 0 8px 26px rgba(0,0,0,.14);
}

.iv-tool {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-width: 54px;
  border: 0;
  border-radius: 9px;
  padding: 7px 6px 6px;
  background: transparent;
  color: var(--text);
  font: 11px/1 var(--ui-font);
  cursor: pointer;
}

.iv-tool:hover { background: color-mix(in srgb, var(--text) 7%, transparent); }
.iv-tool.active { background: color-mix(in srgb, var(--ink) 16%, transparent); }
.iv-tool svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.iv-tool kbd { position: absolute; top: 3px; right: 5px; color: var(--muted); font: 9px/1 var(--ui-font); }

.iv-zoom {
  position: absolute;
  right: 14px;
  bottom: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--hairline);
  border-radius: 11px;
  background: var(--panel-bg);
}

.iv-zoom button {
  min-width: 30px;
  height: 28px;
  border: 0;
  border-radius: 7px;
  padding: 0 7px;
  background: transparent;
  color: var(--text);
  font: 13px/1 var(--ui-font);
  cursor: pointer;
}

.iv-zoom button:hover { background: color-mix(in srgb, var(--text) 7%, transparent); }

.iv-context {
  position: absolute;
  z-index: 12;
  display: none;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  max-width: min(560px, calc(100% - 24px));
  padding: 5px;
  border: 1px solid var(--hairline);
  border-radius: 11px;
  background: var(--panel-bg);
  box-shadow: 0 8px 24px rgba(0,0,0,.14);
  font-size: 12.5px;
}

.iv-context.open { display: flex; }

.iv-ctx-btn {
  border: 0;
  border-radius: 7px;
  padding: 6px 9px;
  background: transparent;
  color: var(--text);
  font: 12.5px/1 var(--ui-font);
  white-space: nowrap;
  cursor: pointer;
}

.iv-ctx-btn:hover { background: color-mix(in srgb, var(--text) 8%, transparent); }
.iv-ctx-btn.on { background: color-mix(in srgb, var(--ink) 16%, transparent); color: var(--text); }
.iv-ctx-btn.danger { color: #AF3029; }
.iv-ctx-sep { width: 1px; height: 18px; margin: 0 3px; background: var(--hairline); }
.iv-ctx-label { padding: 0 4px 0 6px; color: var(--muted); }

.iv-ctx-input {
  width: 130px;
  border: 1px solid var(--hairline);
  border-radius: 7px;
  padding: 5px 8px;
  background: transparent;
  color: var(--text);
  font: 12.5px/1 var(--ui-font);
  outline: none;
}

/* ---------- Manuscript beside the board ---------- */

.iv-focus {
  display: none;
  align-items: center;
  gap: 6px;
  margin: 0 14px 8px;
  padding: 6px 6px 6px 10px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--ink) 12%, transparent);
  font-size: 12.5px;
}

.iv-focus.open { display: flex; }
.iv-focus .label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.iv-focus .pos { color: var(--muted); white-space: nowrap; }

.iv-mini {
  min-width: 26px;
  height: 26px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  font: 13px/1 var(--ui-font);
  cursor: pointer;
}

.iv-mini:hover { background: color-mix(in srgb, var(--text) 9%, transparent); }

.iv-text-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 22px 80px;
  font-family: var(--reader-font);
  font-size: 16.5px;
  line-height: 1.85;
  text-align: left;
  -webkit-user-select: text;
  user-select: text;
}

.iv-text-body .iv-hl { background: color-mix(in srgb, var(--ink) 18%, transparent); border-radius: 2px; }
.iv-text-body .iv-cur { background: color-mix(in srgb, var(--ink) 38%, transparent); }

.iv-text-hint { padding: 0 14px 8px; color: var(--muted); font-size: 12px; line-height: 1.45; }

.iv-add-passage {
  position: fixed;
  z-index: 50;
  display: none;
  border: 0;
  border-radius: 999px;
  padding: 8px 13px;
  background: var(--text);
  color: var(--page-bg);
  font: 500 12.5px/1 var(--ui-font);
  box-shadow: 0 6px 18px rgba(0,0,0,.2);
  cursor: pointer;
}

.iv-add-passage.open { display: block; }

@media (max-width: 900px) {
  body[data-mode="interpret"] .interp { grid-template-columns: 1fr; }
  .iv-board { grid-column: 1; }
  .iv-library,
  .iv-text {
    position: absolute;
    top: 0;
    bottom: 0;
    z-index: 30;
    width: min(340px, 88vw);
    box-shadow: 0 0 40px rgba(0,0,0,.25);
  }
  .iv-library { left: 0; }
  .iv-text { right: 0; }
  .iv-tool { min-width: 42px; }
  .iv-tool span { display: none; }
  .iv-zoom { bottom: 76px; }
}