:root {
  /* Palmer Business Concepts corporate identity palette (Palmer CI manual):
     primary Navy (PANTONE 648 C) and Cool Grey (PANTONE Cool Grey 6C), plus
     a tan and slate-blue secondary pair, applied here as a light, white-card
     theme to match how the CI manual itself actually presents the brand
     (letterhead, business card, and presentation templates are all white/
     light-background with navy as the structural colour, not a dark UI). */
  --bg: #F2F3F5;
  --panel-bg: #FFFFFF;
  --panel-bg-raised: #F6F7F9;
  --panel-border: #DBDFE3;
  --text: #17223B;
  --text-dim: #57616F;
  --text-faint: #868E97;
  --accent: #0A3266;
  --accent-contrast: #FFFFFF;

  --input-bg: #F7F8FA;
  --btn-bg: #ECEEF1;
  --btn-border: #D4D8DC;
  --btn-hover-border: #B7BEC5;

  --c-research: #0A3266;
  --c-draft: #2F8F5B;
  --c-critique: #B4463F;
  --c-final: #40688B;
  --c-groundedness: #2E7B8C;
  --c-sources: #868E97;

  --v-approve: #2F8F5B;
  --v-minor: #A5760E;
  --v-major: #B4463F;

  --diff-insert-bg: rgba(47, 143, 91, 0.14);
  --diff-insert-text: #1F6B3F;
  --diff-delete-bg: rgba(180, 70, 63, 0.10);
  --diff-delete-text: #8C332C;

  /* Source-review-only tokens, see the .source-card rules further down. */
  --removed-bg: rgba(180, 70, 63, 0.06);
  --removed-border: rgba(180, 70, 63, 0.35);
  --added-border: rgba(47, 143, 91, 0.4);

  /* CI secondary colours, available for accents elsewhere (tan/khaki and
     slate blue), not used as structural UI colours on their own since
     neither has enough contrast against white for text at this weight. */
  --ci-tan: #CFC491;
  --ci-slate: #40688B;
}

* { box-sizing: border-box; }

/* A handful of elements below set their own unconditional `display:`
   (flex, mostly, for row layouts), which is enough specificity/origin
   priority to beat the browser's default `[hidden] { display: none }` UA
   rule: author stylesheets always win over UA styles at equal specificity,
   regardless of source order, so `.add-source-row { display: flex }`
   alone would leave that row visibly showing even with the `hidden`
   attribute set. This one rule guarantees `hidden` always wins, instead of
   auditing every current and future `display:` declaration for the
   interaction. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  /* Arial first: Palmer's own CI manual specifies Arial as the designated
     "Secondary/Electronic typeface", Gill Sans (the print typeface) isn't
     a real web font available on end-user machines without licensing and
     bundling font files, exactly the case the manual's own Arial fallback
     already covers. */
  font-family: Arial, Helvetica, "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
}

header.topbar {
  padding: 18px 28px;
  border-bottom: 1px solid var(--panel-border);
  background: var(--panel-bg);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar-right .btn-link { padding: 0; }

header.topbar h1 {
  font-size: 1.15rem;
  margin: 0;
  font-weight: 600;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
}
.topbar-logo {
  height: 26px;
  width: auto;
  display: block;
}
.topbar-product {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-faint);
  padding-left: 12px;
  border-left: 1px solid var(--panel-border);
}

.config-line {
  color: var(--text-faint);
  font-size: 0.8rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 18px 20px;
}

label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-dim);
  margin: 12px 0 4px;
}
label:first-of-type { margin-top: 0; }
.optional { color: var(--text-faint); font-weight: 400; }

textarea, input[type="number"], input[type="text"], input[type="url"], input[type="email"], input[type="password"] {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 11px;
  font-family: inherit;
  font-size: 0.92rem;
  resize: vertical;
}
textarea:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}

.controls-row {
  display: flex;
  gap: 24px;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-top: 14px;
}
.control { display: flex; flex-direction: column; }
.control input[type="number"] { width: 90px; }
.control-checkbox label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--text);
  font-size: 0.88rem;
  cursor: pointer;
}
.control-checkbox input { width: auto; }

.btn {
  background: var(--btn-bg);
  color: var(--text);
  border: 1px solid var(--btn-border);
  border-radius: 6px;
  padding: 9px 18px;
  font-size: 0.88rem;
  cursor: pointer;
  font-family: inherit;
}
.btn:hover { border-color: var(--btn-hover-border); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  font-weight: 600;
  margin-top: 16px;
}
.btn-primary:hover { filter: brightness(1.15); }
.btn-cancel {
  border-color: var(--removed-border);
  color: var(--v-major);
  flex-shrink: 0;
}
.btn-cancel:hover { border-color: var(--v-major); background: var(--removed-bg); }

.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  padding: 4px 0;
  font-size: 0.82rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.btn-link:hover { color: var(--text); }

select {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 11px;
  font-family: inherit;
  font-size: 0.92rem;
}
select:focus { outline: none; border-color: var(--accent); }

.format-hint {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: 6px;
}

.voice-actions-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 8px;
}
.voice-panel {
  background: var(--panel-bg-raised);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 14px 16px 16px;
  margin-top: 10px;
}
.voice-panel label:first-of-type { margin-top: 0; }

.error-text {
  display: block;
  color: var(--v-major);
  font-size: 0.85rem;
  margin-top: 10px;
}
.error-text:empty { display: none; }

/* Pins statusPanel+stepper to the top of the viewport once the page
   scrolls past them, everything else in <main> scrolls underneath. Needs
   its own opaque background (main's own background is transparent, it
   just inherits body's) so scrolled-past content doesn't show through the
   flex gap between statusPanel and the stepper, or around the stepper's
   own rounded corners, while stuck. z-index just needs to clear the
   step-panels below it, nothing here uses a higher one. */
.page-header-sticky {
  position: sticky;
  top: 0;
  z-index: 5;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-bottom: 6px;
}

.status-panel { padding: 12px 20px; }
.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.status-line {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  display: flex;
  align-items: center;
  gap: 10px;
}
.status-line.busy::before {
  content: "";
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.1s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes pulse {
  0%, 100% { opacity: 0.3; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.1); }
}
.status-line.error { color: var(--v-major); }
.status-line.error::before { content: none; }

/* ------------------------------------------------------------- stepper --
   The three-step navigation strip across the top of a run. Reasoning for
   a stepper over literal always-visible side-by-side panes is that the
   pipeline's stages run one after another, not concurrently, see
   mockup/layout_proposal.html's annotation for the fuller version of this
   argument (this is the shipped implementation of that approved design). */
nav.stepper {
  display: flex;
  gap: 2px;
  margin: 0 0 -1px;
}
.step {
  flex: 1;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  padding: 14px 18px 12px;
  cursor: pointer;
  position: relative;
  transition: background 0.15s ease;
}
.step:hover { background: var(--panel-bg-raised); }
.step.active {
  background: var(--panel-bg-raised);
  box-shadow: inset 0 3px 0 var(--step-color, var(--accent));
}
.step[data-step="1"] { --step-color: var(--accent); }
.step[data-step="2"] { --step-color: var(--c-research); }
.step[data-step="3"] { --step-color: var(--c-draft); }
.step[data-step="4"] { --step-color: var(--c-final); }
.step:not(.active):not(.done) { opacity: 0.6; cursor: default; }
.step-num {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--step-color, var(--text-faint));
}
.step-title { font-weight: 600; font-size: 0.95rem; margin: 3px 0 2px; }
.step-meta { font-size: 0.78rem; color: var(--text-dim); }
.step.done .step-num::after { content: " \2713"; color: var(--v-approve); }

.stage-panel {
  background: var(--panel-bg-raised);
  border: 1px solid var(--panel-border);
  border-radius: 0 0 10px 10px;
  padding: 24px 26px;
  margin-bottom: 18px;
}
h2.panel-h { font-size: 0.95rem; margin: 0 0 14px; font-weight: 600; }
h3.panel-h3 { font-size: 0.88rem; margin: 0 0 10px; font-weight: 600; }

.brief-text {
  white-space: pre-wrap;
  font-size: 0.92rem;
  color: var(--text-dim);
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 14px 16px;
  margin: 0 0 22px;
}

/* -------------------------------------------------------- source cards --
   Shared by both rendering modes: a plain read-only list (a normal run, or
   the second research pass continue_after_source_review() triggers) and
   the rich interactive review (only when review_sources was on for this
   run). app.js decides which to build from the SAME #sourcesReviewList
   container, keyed off which SSE event arrived ("sources" vs
   "source_review"), see app.js's handleStageEvent(). */
.sources-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 4px;
}
.sources-heading h2 { margin: 0; }
.sources-count { font-size: 0.8rem; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.source-card {
  display: flex;
  gap: 14px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 10px;
  align-items: flex-start;
  transition: opacity 0.15s ease, background 0.15s ease;
}
.source-card.removed {
  background: var(--removed-bg);
  border-color: var(--removed-border);
  opacity: 0.7;
}
.source-card.added-new { border-color: var(--added-border); }
.source-body { flex: 1; min-width: 0; }
.source-title-row { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.source-title { font-weight: 600; font-size: 0.92rem; }
.source-title a { color: var(--text); text-decoration: none; }
.source-title a:hover { color: var(--accent); }
.source-domain { font-size: 0.75rem; color: var(--text-faint); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.source-overview { font-size: 0.86rem; color: var(--text-dim); line-height: 1.55; }
.source-overview .label {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--c-sources); margin-right: 6px;
}
.source-card.removed .source-title, .source-card.removed .source-overview { text-decoration: line-through; text-decoration-color: var(--removed-border); }
.source-pending { font-size: 0.8rem; color: var(--text-faint); font-style: italic; }

.source-toggle {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text-dim);
  font-size: 0.78rem;
  padding: 6px 12px;
  cursor: pointer;
  white-space: nowrap;
}
.source-toggle:hover { border-color: var(--text-faint); }
.source-card.removed .source-toggle { color: var(--v-major); border-color: var(--removed-border); }

.add-source-row { display: flex; gap: 8px; margin: 16px 0 22px; }
.add-source-row input {
  flex: 1;
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  color: var(--text);
  padding: 9px 11px;
  font-size: 0.88rem;
}
.add-source-row input:focus { outline: none; border-color: var(--accent); }

.continue-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--panel-border);
}
.continue-note { font-size: 0.8rem; color: var(--text-faint); max-width: 480px; }

.stream { display: flex; flex-direction: column; gap: 14px; }

.stage-block {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-left: 4px solid var(--stage-color, var(--text-faint));
  border-radius: 8px;
  padding: 14px 18px;
}
.stage-block[data-stage="draft"] { --stage-color: var(--c-draft); }
.stage-block[data-stage="critique"] { --stage-color: var(--c-critique); }
.stage-block[data-stage="groundedness"] { --stage-color: var(--c-groundedness); }

.stage-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--stage-color, var(--text-faint));
  display: flex;
  align-items: center;
  gap: 10px;
}

.verdict-badge {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 2px 8px;
  border-radius: 999px;
  text-transform: uppercase;
}
.verdict-badge.approve { background: rgba(47,143,91,0.14); color: var(--v-approve); }
.verdict-badge.minor_revise { background: rgba(165,118,14,0.14); color: var(--v-minor); }
.verdict-badge.major_revise { background: rgba(180,70,63,0.14); color: var(--v-major); }

.score-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(46,123,140,0.14);
  color: var(--c-groundedness);
}

.stage-title {
  font-weight: 600;
  margin: 6px 0 8px;
  font-size: 0.92rem;
}

.stage-text {
  white-space: pre-wrap;
  font-size: 0.92rem;
  color: var(--text);
}

.diff-insert {
  background: var(--diff-insert-bg);
  color: var(--diff-insert-text);
  border-radius: 3px;
}
.diff-delete {
  background: var(--diff-delete-bg);
  color: var(--diff-delete-text);
  text-decoration: line-through;
  border-radius: 3px;
}

.final-text {
  white-space: pre-wrap;
  font-family: inherit;
  font-size: 0.98rem;
  background: var(--input-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 14px 16px;
  margin: 0 0 12px;
}
.copy-status {
  margin-left: 10px;
  font-size: 0.82rem;
  color: var(--v-approve);
}

.actions-panel textarea { margin-bottom: 12px; }
.actions-row { display: flex; gap: 10px; }
.groundedness-result { margin-top: 16px; }

.page-footer {
  max-width: 880px;
  margin: 0 auto 24px;
  padding: 0 20px;
  text-align: center;
  font-size: 0.76rem;
  color: var(--text-faint);
}