:root {
  --ink: #1b1e23;
  --ink-soft: #3b414a;
  --mute: #6f7782;
  --faint: #a2a9b4;
  --line: #e2e4e8;
  --line-strong: #cfd3d9;
  --bg: #f4f2ee;
  --panel: #ffffff;
  --paper: #fffdf9;
  --accent: #2c6491;
  --accent-soft: #e7eef5;
  --bad: #a93b2f;
  --bad-soft: #fbeeec;
  --warn: #9a6d22;
  --warn-soft: #fbf3e3;
  --ok: #3f6b3a;
  --ok-soft: #eef5ec;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 13.5px/1.45 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  display: grid;
  grid-template-rows: 54px minmax(0, 1fr);
  overflow: hidden;
}

.grow { flex: 1; }

/* -- top bar ------------------------------------------------------------- */

#topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.brand {
  font-weight: 700;
  font-size: 14px;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.dot { color: var(--accent); }

.story-title {
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  width: min(280px, 22vw);
  padding: 5px 8px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: none;
  color: var(--ink);
}

.story-title:hover { border-color: var(--line); }
.story-title:focus { outline: none; border-color: var(--line-strong); background: #fff; }

.status {
  font-size: 11.5px;
  color: var(--faint);
  white-space: nowrap;
}

.status.saving { color: var(--warn); }
.status.error { color: var(--bad); }

.views {
  display: flex;
  gap: 2px;
  background: #f2f1ee;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2px;
}

.views button {
  font: inherit;
  font-size: 12.5px;
  border: 0;
  border-radius: 6px;
  background: none;
  color: var(--mute);
  padding: 4px 11px;
  cursor: pointer;
}

.views button:hover { color: var(--ink); }

.views button.active {
  background: #fff;
  color: var(--ink);
  font-weight: 500;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

.badge {
  font: inherit;
  font-size: 11.5px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 3px 11px;
  cursor: pointer;
  white-space: nowrap;
}

.badge.ok { color: var(--ok); border-color: #cfe0c9; background: var(--ok-soft); }
.badge.warn { color: var(--warn); border-color: #eadcc0; background: var(--warn-soft); }
.badge.bad { color: var(--bad); border-color: #e8c9c4; background: var(--bad-soft); }

.ghost {
  font: inherit;
  font-size: 12.5px;
  color: var(--mute);
  background: none;
  border: 0;
  padding: 4px 6px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.ghost:hover { color: var(--ink); }

/* -- main grid ----------------------------------------------------------- */

#main {
  display: grid;
  grid-template-columns: 262px minmax(0, 1fr) 322px;
  min-height: 0;
  overflow: hidden;
}

#tree, #inspector {
  background: var(--panel);
  overflow-y: auto;
  min-height: 0;
  padding: 10px 8px 40px;
}

#tree { border-right: 1px solid var(--line); }
#inspector { border-left: 1px solid var(--line); padding: 14px 14px 40px; }

#view {
  min-width: 0;
  min-height: 0;
  overflow: auto;
  position: relative;
}

/* -- tree ---------------------------------------------------------------- */

.tree-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 8px 5px;
}

.tree-head h2 {
  margin: 0;
  flex: 1;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.plus {
  font: inherit;
  font-size: 15px;
  line-height: 1;
  width: 21px;
  height: 21px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--mute);
  cursor: pointer;
}

.plus:hover { color: var(--ink); border-color: var(--line-strong); }

.tree-list { list-style: none; margin: 0; padding: 0; }

.tree-row {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 5px 8px;
  border-radius: 6px;
  cursor: pointer;
  min-height: 27px;
}

.tree-row:hover { background: #f4f3f0; }
.tree-row.sel { background: var(--accent-soft); }

.tree-row .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
  align-self: center;
}

.tree-row .name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tree-row .sub {
  flex: none;
  color: var(--faint);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.tree-row.pov { padding-left: 8px; }

/* -- graphs -------------------------------------------------------------- */

.graph-host {
  padding: 14px 16px 24px;
  min-width: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.graph-lead {
  max-width: 78ch;
  margin: 0 0 6px;
  color: var(--mute);
  font-size: 12px;
}

.graph-scroll { overflow-x: auto; flex: 1; display: grid; align-content: center; }

/* -- prose --------------------------------------------------------------- */

.prose {
  max-width: 760px;
  margin: 0 auto;
  padding: 26px 30px 30vh;
}

.prose-book-title {
  margin: 0 0 4px;
  font: 600 12px/1.4 ui-sans-serif, system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--faint);
}

.chapter-block { margin: 0 0 34px; }

.chapter-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 26px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.chapter-title {
  flex: 1;
  min-width: 0;
  font: 600 17px/1.3 ui-serif, Georgia, "Times New Roman", serif;
  color: var(--ink);
  border: 1px solid transparent;
  border-radius: 5px;
  background: none;
  padding: 3px 5px;
}

.chapter-title:hover { border-color: var(--line); }
.chapter-title:focus { outline: none; border-color: var(--line-strong); background: #fff; }

.chapter-meta { font-size: 11px; color: var(--faint); white-space: nowrap; }

.chapter-actions { display: flex; gap: 1px; opacity: 0; transition: opacity 0.12s; }
.chapter-block:hover .chapter-actions, .chapter-block.sel .chapter-actions { opacity: 1; }

.icon-btn {
  font: inherit;
  font-size: 11px;
  line-height: 1;
  width: 20px;
  height: 20px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: none;
  color: var(--faint);
  cursor: pointer;
}

.icon-btn:hover:not(:disabled) { background: #eeece8; color: var(--ink); }
.icon-btn:disabled { opacity: 0.3; cursor: default; }

.block {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 4px;
  border-radius: 6px;
  padding: 2px 4px 2px 0;
  position: relative;
}

.block:hover { background: #faf9f6; }
.block.sel { background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent); }
.block.tells { background: #f3f7fb; box-shadow: inset 2px 0 0 #9dc0d8; }
.block.tells.sel { background: var(--accent-soft); }

.block-gutter {
  padding-top: 7px;
  text-align: right;
  font-size: 9.5px;
  color: var(--faint);
  font-variant-numeric: tabular-nums;
  user-select: none;
}

.block-gutter .fact-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-left: 4px;
  vertical-align: 1px;
}

.block-body { min-width: 0; }

.block-text {
  display: block;
  width: 100%;
  border: 0;
  background: none;
  resize: none;
  overflow: hidden;
  padding: 5px 6px 2px;
  font: 15.5px/1.75 ui-serif, Georgia, "Times New Roman", serif;
  color: var(--ink);
  min-height: 33px;
}

.block-text:focus { outline: none; }
.block-text::placeholder { color: #c3c7cd; font-style: italic; }

.block-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
  padding: 0 6px 4px;
  min-height: 16px;
  opacity: 0.55;
  transition: opacity 0.12s;
}

.block:hover .block-meta, .block.sel .block-meta, .block.tells .block-meta { opacity: 1; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #eef1f5;
  border: 1px solid #e0e4ea;
  border-radius: 999px;
  padding: 1px 8px;
  font-size: 10.5px;
  color: var(--ink-soft);
  cursor: pointer;
  max-width: 100%;
}

.chip:hover { border-color: #c9d2dc; background: #e7ecf2; }
.chip.primary { background: var(--accent-soft); border-color: #cfdeeb; }
.chip .dot { width: 5px; height: 5px; border-radius: 50%; flex: none; }
.chip .mode { color: var(--faint); }
.chip.add { background: none; border-style: dashed; color: var(--faint); }

.chip-inline {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  color: var(--mute);
}

.empty-hint {
  color: var(--mute);
  font-size: 12.5px;
  padding: 10px 4px;
}

/* -- inspector ----------------------------------------------------------- */

.insp-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.insp-kicker {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faint);
}

.insp-title {
  margin: 0 0 2px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  word-break: break-word;
}

.insp-sub { color: var(--mute); font-size: 12px; margin-bottom: 12px; }

.insp-section {
  border-top: 1px solid var(--line);
  padding: 11px 0 4px;
}

.insp-section > h3 {
  margin: 0 0 7px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--mute);
}

.field { display: flex; flex-direction: column; gap: 3px; margin-bottom: 9px; min-width: 0; }

.field > span {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--faint);
}

.field-row { display: flex; gap: 8px; }
.field-row > .field { flex: 1; }

input, textarea, select {
  font: inherit;
  font-size: 12.5px;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 7px;
  min-width: 0;
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: #9dc0d8;
  box-shadow: 0 0 0 3px #eaf1f7;
}

textarea { resize: vertical; }

.check { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: var(--mute); }
.check input { width: auto; }

button {
  font: inherit;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 5px 10px;
  font-size: 12.5px;
  cursor: pointer;
}

button:hover:not(:disabled) { border-color: var(--line-strong); }
button:disabled { opacity: 0.45; cursor: default; }
button.danger { color: var(--bad); }
button.danger:hover { border-color: #e0b5ae; background: var(--bad-soft); }

.button-row { display: flex; gap: 6px; flex-wrap: wrap; }
.button-row button { flex: none; }

.link-row {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr) 86px 24px 20px;
  gap: 5px;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px dashed #eef0f3;
}

.link-row .dot { width: 7px; height: 7px; border-radius: 50%; }
.link-row .name {
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.link-row select { padding: 2px 3px; font-size: 11px; }
.link-row input[type="radio"] { width: auto; margin: 0; }

.ref-list { list-style: none; margin: 0; padding: 0; }
.ref-list li {
  font-size: 12px;
  padding: 4px 5px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ref-list li:hover { background: #f4f3f0; }

.kv { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 3px 8px; font-size: 12px; }
.kv dt { color: var(--faint); }
.kv dd { margin: 0; color: var(--ink-soft); word-break: break-word; }

.hint { color: var(--mute); font-size: 12px; }
.error { color: var(--bad); font-size: 12px; margin: 6px 0 0; }

/* -- findings ------------------------------------------------------------ */

.findings {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  width: min(760px, calc(100vw - 32px));
  max-height: 42vh;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  box-shadow: 0 18px 48px rgba(20, 24, 30, 0.16);
  z-index: 40;
  overflow: hidden;
}

.findings-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
}

#findings-list { list-style: none; margin: 0; padding: 6px 8px 10px; overflow: auto; }

#findings-list li {
  display: flex;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12.5px;
  align-items: baseline;
}

#findings-list li:hover { background: #f5f4f1; }

.level {
  flex: none;
  width: 52px;
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  padding-top: 1px;
}

.level.error { color: var(--bad); }
.level.warning { color: var(--warn); }
.level.note { color: var(--faint); }

/* -- login, toast -------------------------------------------------------- */

.login {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: grid;
  place-items: center;
  z-index: 50;
}

.login-box {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 28px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.07);
}

.login-box h1 { margin: 0 0 2px; font-size: 18px; }
.login-box .hint { margin: 0 0 6px; }
.login-box button { background: var(--ink); color: #fff; border-color: var(--ink); }
.login-box button:hover { background: #33383f; border-color: #33383f; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  background: #22262c;
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 12.5px;
  z-index: 60;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  max-width: min(560px, calc(100vw - 40px));
}

.toast.bad { background: #8e3227; }

@media (max-width: 1120px) {
  #main { grid-template-columns: 220px minmax(0, 1fr) 290px; }
  .story-title { width: 160px; }
}

@media (max-width: 880px) {
  #main { grid-template-columns: minmax(0, 1fr); }
  #tree { display: none; }
  #inspector { display: none; }
}