/* Anchor — RegLegBrief deploy, multi-mode v0.2
   Adds: mode tabs, per-mode panes (Compare/Reply/Cite/Templates/Image/Audio),
         TTS controls, claim cards, diff lines, dropzones, recording state.
   Preserves: nav, footer, composer, error/translation blocks. */

:root {
  --bg:        #FAFAF7;
  --surface:   #FFFFFF;
  --ink:       #1A1A1A;
  --muted:     #5C5F66;
  --border:    #E5E5E0;
  --accent:    #1B3A6B;
  --accent-2:  #2C5499;

  --confirmed:    #1F7A4D;
  --caveats:      #B8860B;
  --refuted:      #A32424;
  --insufficient: #6B7280;

  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --serif: 'Source Serif Pro', 'Source Serif 4', Charter, Cambria, Georgia, serif;
  --mono:  ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --max-narrow:  1100px;
  --max-pane:    900px;
  --max-wide:    1280px;
  --r:           6px;
  --pad:         24px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--bg); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
a:hover { border-bottom-color: var(--accent); }

/* ===== Top nav ===== */
.nav { border-bottom: 1px solid var(--border); background: var(--bg); position: sticky; top: 0; z-index: 30; }
.nav-inner {
  max-width: var(--max-wide); margin: 0 auto;
  padding: 14px var(--pad);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand {
  font-family: var(--serif); font-weight: 600; font-size: 20px;
  color: var(--ink); border-bottom: none;
}
.brand .dot { color: var(--accent); }
.nav-links { display: flex; gap: 22px; align-items: center; font-size: 14px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); border-bottom: none; }
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--ink); font-weight: 500; }

/* ===== Mode tabs (sticky under top nav) ===== */
.mode-tabs {
  position: sticky; top: var(--nav-h, 56px); z-index: 25;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.mode-tabs-inner {
  max-width: var(--max-wide); margin: 0 auto;
  padding: 10px var(--pad);
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}
.mode-tab {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  padding: 6px 14px; border-radius: 999px; cursor: pointer;
  white-space: nowrap;
  transition: all 0.12s ease;
}
.mode-tab:hover { color: var(--ink); border-color: var(--muted); }
.mode-tab.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }
.mode-tab[hidden] { display: none; }
.nano-pill {
  margin-left: auto; font-family: var(--mono); font-size: 11px;
  padding: 3px 8px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  white-space: nowrap;
}
.nano-pill.ok   { color: var(--confirmed); border-color: var(--confirmed); }
.nano-pill.warn { color: var(--caveats);   border-color: var(--caveats); }
.nano-pill.fail { color: var(--refuted);   border-color: var(--refuted); }
.nano-pill a    { color: inherit; }

/* ===== Buttons ===== */
.btn {
  display: inline-block; padding: 8px 16px;
  border-radius: var(--r); font-size: 14px; font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface); color: var(--ink);
  cursor: pointer; border-bottom: 1px solid var(--border);
}
.btn:hover { background: #F4F4EE; }
.btn-primary {
  background: var(--accent); color: #fff; border-color: var(--accent);
  border: 1px solid var(--accent);
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  padding: 8px 16px; border-radius: var(--r);
  cursor: pointer;
}
.btn-primary:hover:not(:disabled) { background: var(--accent-2); border-color: var(--accent-2); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary {
  background: var(--surface); color: var(--muted); border: 1px solid var(--border);
  font-family: var(--sans); font-size: 14px; font-weight: 500;
  padding: 8px 16px; border-radius: var(--r);
  cursor: pointer;
}
.btn-secondary:hover { color: var(--ink); border-color: var(--muted); }

/* ===== Chat shell + mode panes ===== */
.chat-shell {
  min-height: calc(100vh - 110px);
  display: flex; flex-direction: column;
  padding-bottom: 140px;
}
.mode-pane {
  display: none;
  width: 100%; max-width: var(--max-pane);
  margin: 0 auto; padding: 32px var(--pad) 8px;
}
.mode-pane.is-active { display: block; }

.pane-hero { text-align: center; margin-bottom: 24px; }
.pane-hero h1 {
  font-family: var(--serif); font-weight: 500; font-size: 28px;
  margin: 0 0 8px; color: var(--ink); letter-spacing: -0.01em;
}
.pane-hero .sub { font-size: 14px; color: var(--muted); margin: 0; }

.pane-body { display: flex; flex-direction: column; gap: 10px; }
.pane-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.pane-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--muted);
}
.pane-row select {
  font-family: var(--sans); font-size: 13px;
  padding: 5px 10px;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--surface); color: var(--ink);
}

/* ===== Write input shell ===== */
.input-shell {
  width: 100%; max-width: var(--max-pane);
  display: flex; align-items: stretch;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); overflow: hidden;
  box-shadow: 0 1px 0 rgba(0,0,0,0.02);
}
.input-shell:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27, 58, 107, 0.08);
}
.input-shell input, .input-shell textarea {
  flex: 1; border: 0; outline: 0;
  padding: 14px 16px;
  font-family: var(--sans); font-size: 15px;
  color: var(--ink); background: transparent;
  resize: none; min-height: 48px;
}
.input-shell button {
  border: 0; background: var(--accent); color: #fff;
  padding: 0 18px; font-size: 16px; cursor: pointer;
}
.input-shell button:hover { background: var(--accent-2); }

/* ===== Write op chips panel ===== */
.nano-ops {
  margin-top: 14px;
  border: 1px solid var(--border); background: var(--surface);
  border-radius: var(--r); padding: 14px 16px;
}
.op-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.op-chip {
  border: 1px solid var(--border); background: var(--bg); color: var(--muted);
  font-family: var(--sans); font-size: 12px;
  padding: 5px 11px; border-radius: 999px; cursor: pointer;
  transition: all 0.12s ease;
}
.op-chip:hover { color: var(--ink); border-color: var(--muted); }
.op-chip.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

.lang-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--muted);
  padding-top: 10px; border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.lang-row[hidden] { display: none; }
.lang-row label { white-space: nowrap; }
.lang-row select {
  font-family: var(--sans); font-size: 12px;
  padding: 4px 8px;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg); color: var(--ink);
}
.direct-mode-row {
  font-size: 12px; color: var(--muted);
  padding: 8px 0 4px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}
.direct-mode-row label {
  display: flex; align-items: center; gap: 6px;
  cursor: pointer; margin-top: 6px;
}
.direct-mode-row input { margin: 0; accent-color: var(--accent); }

/* ===== Compare / Reply / Cite multi-input textareas ===== */
.multi-input {
  width: 100%; padding: 12px 14px;
  font-family: var(--sans); font-size: 14px;
  color: var(--ink); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r);
  outline: none; resize: vertical;
}
.multi-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27,58,107,0.08);
}
.multi-input.field-error,
.multi-input.field-error:focus {
  border-color: var(--refuted);
  box-shadow: 0 0 0 3px rgba(163, 36, 36, 0.10);
}
.pane-error {
  background: rgba(163, 36, 36, 0.06);
  color: var(--refuted);
  border: 1px solid rgba(163, 36, 36, 0.25);
  border-radius: var(--r);
  padding: 8px 12px;
  font-family: var(--sans); font-size: 13px;
  margin-top: 4px;
}
.pane-error[hidden] { display: none; }

/* ===== Templates ===== */
.tpl-form input, .tpl-form textarea {
  width: 100%; padding: 10px 14px;
  font-family: var(--sans); font-size: 14px;
  color: var(--ink); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r);
  outline: none; resize: vertical;
  margin-bottom: 10px;
}
.tpl-form input:focus, .tpl-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27,58,107,0.08);
}
.tpl-list-head {
  font-family: var(--sans); font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted); margin: 24px 0 10px;
}
.tpl-list { display: flex; flex-direction: column; gap: 10px; }
.tpl-empty { color: var(--muted); font-size: 13px; font-style: italic; margin: 0; }
.tpl-item {
  background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r);
  padding: 12px 14px;
}
.tpl-item-name { font-weight: 600; font-size: 14px; margin: 0 0 4px; }
.tpl-item-prompt {
  color: var(--muted); font-size: 12px; margin: 0 0 10px;
  white-space: pre-wrap;
  max-height: 80px; overflow: hidden;
}
.tpl-item-actions { display: flex; gap: 6px; }
.tpl-item-actions button {
  font-family: var(--sans); font-size: 12px;
  padding: 4px 10px; border-radius: 4px; cursor: pointer;
  border: 1px solid var(--border);
}
.tpl-item-actions .btn-use { background: var(--accent); color: #fff; border-color: var(--accent); }
.tpl-item-actions .btn-use:hover { background: var(--accent-2); }
.tpl-item-actions .btn-del { background: var(--surface); color: var(--refuted); border-color: var(--border); }
.tpl-item-actions .btn-del:hover { background: #FAEEEE; border-color: var(--refuted); }
.tpl-item-actions .btn-save-lib { background: var(--surface); color: var(--confirmed); border-color: var(--border); }
.tpl-item-actions .btn-save-lib:hover { background: rgba(31, 122, 77, 0.05); border-color: var(--confirmed); }
.tpl-item.tpl-item-lib { border-left: 3px solid var(--accent); }
.tpl-help { font-size: 12px; color: var(--muted); font-style: italic; margin: -4px 0 10px; }

.tpl-inline-composer {
  margin-top: 10px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r);
}
.tpl-inline-textarea {
  width: 100%; padding: 10px 12px;
  font-family: var(--sans); font-size: 14px;
  color: var(--ink); background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r);
  outline: none; resize: vertical;
  margin-bottom: 8px;
}
.tpl-inline-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(27,58,107,0.08);
}
.tpl-inline-textarea.field-error,
.tpl-inline-textarea.field-error:focus {
  border-color: var(--refuted);
  box-shadow: 0 0 0 3px rgba(163, 36, 36, 0.10);
}
.tpl-inline-actions { display: flex; gap: 8px; }

/* ===== Dropzones (Image / Audio) ===== */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--r);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  background: var(--surface);
  transition: border-color 0.12s ease, background 0.12s ease;
}
.dropzone:hover, .dropzone.is-dragover {
  border-color: var(--accent);
  background: rgba(27, 58, 107, 0.04);
}
.dz-text { margin: 0; color: var(--muted); font-size: 13px; }
.dropzone img {
  max-width: 100%; max-height: 320px;
  margin: 0 auto;
  display: block; border-radius: 4px;
}
.dropzone audio { width: 100%; margin: 0 auto; }

.rec-row { display: flex; align-items: center; gap: 10px; }
.rec-time { font-family: var(--mono); font-size: 13px; color: var(--refuted); }
.btn-secondary.is-recording {
  color: #fff; background: var(--refuted); border-color: var(--refuted);
}
.live-interim {
  color: var(--muted); font-style: italic; opacity: 0.7;
}

/* ===== Promo strip ===== */
.rlb-promo-strip {
  margin: 24px auto 8px; padding: 10px 16px;
  border-top: 1px dashed var(--border); border-bottom: 1px dashed var(--border);
  font-size: 12px; color: var(--muted);
  text-align: center; max-width: var(--max-pane);
}
.rlb-promo-strip[hidden] { display: none; }

/* ===== Thread toolbar (Clear results) ===== */
.thread-toolbar {
  max-width: var(--max-narrow);
  margin: 18px auto -8px;
  padding: 0 var(--pad);
  display: flex; justify-content: flex-end;
}
.thread-toolbar[hidden] { display: none; }
.thread-clear-btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  font-family: var(--sans); font-size: 12px; font-weight: 500;
  padding: 5px 12px; border-radius: 999px; cursor: pointer;
}
.thread-clear-btn:hover { color: var(--refuted); border-color: var(--refuted); }

/* ===== Mode-switch divider in thread ===== */
.mode-divider {
  display: flex; align-items: center; gap: 12px;
  max-width: var(--max-narrow); margin: 18px auto;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--muted);
}
.mode-divider::before, .mode-divider::after {
  content: ""; flex: 1; height: 1px;
  background: var(--border);
}
.mode-divider span { white-space: nowrap; }

/* ===== Output thread ===== */
.chat-thread {
  flex: 1; overflow-y: visible;
  padding: 24px var(--pad) 60px;
  max-width: var(--max-narrow); margin: 0 auto; width: 100%;
}
.nano-block {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 18px 22px; margin-bottom: 18px;
}
.nano-block-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 8px; margin-bottom: 12px;
}
.nano-op-tag {
  display: inline-block;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent);
  background: rgba(27, 58, 107, 0.06);
  padding: 3px 9px; border-radius: 4px;
}
/* Suggested-followups CSS removed in v0.6.37 (feature deleted). */

/* Per-block collapse (Phase 3 Sessions-collapse) */
.nano-collapse-btn {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); cursor: pointer;
  font-size: 12px; line-height: 1;
  padding: 3px 6px;
  border-radius: 4px;
  margin-left: 4px;
}
.nano-collapse-btn:hover { color: var(--accent); border-color: var(--accent); }
.nano-block.is-collapsed .nano-input,
.nano-block.is-collapsed .nano-output,
.nano-block.is-collapsed .tts-controls,
.nano-block.is-collapsed .nano-translation-divider,
.nano-block.is-collapsed .nano-translation-head,
.nano-block.is-collapsed .nano-translation-output,
.nano-block.is-collapsed .tts-translated-preview,
.nano-block.is-collapsed .nano-followup-btn { display: none !important; }

/* S2 auto-trim >50 blocks (Phase 3) — click-to-show band at top. */
.nano-block.is-old-hidden { display: none !important; }
.anchor-trim-band {
  display: block;
  width: 100%;
  margin: 4px 0 12px;
  padding: 8px 10px;
  border: 1px dashed var(--border);
  background: rgba(27, 58, 107, 0.03);
  color: var(--muted);
  font-family: var(--sans); font-size: 12px;
  border-radius: var(--r);
  cursor: pointer; text-align: left;
}
.anchor-trim-band:hover { color: var(--accent); border-color: var(--accent); background: rgba(27, 58, 107, 0.06); }

/* L2 timestamps (Phase 3) — small muted time inside the op tag. */
.nano-time {
  font-family: var(--mono, ui-monospace, Consolas, monospace);
  font-size: 10px;
  color: var(--muted);
  opacity: 0.6;
  margin-left: 6px;
  font-weight: normal;
  letter-spacing: 0.02em;
  text-transform: none;
}
.nano-copy-btn {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); cursor: pointer;
  font-size: 14px; line-height: 1;
  padding: 4px 9px; border-radius: 4px;
  flex-shrink: 0;
}
.nano-copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.nano-copy-btn.copied { color: var(--confirmed); border-color: var(--confirmed); }
.nano-head-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.nano-stop-btn {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--refuted); cursor: pointer;
  font-family: var(--sans); font-size: 12px; line-height: 1; font-weight: 500;
  padding: 4px 10px; border-radius: 4px;
  flex-shrink: 0; white-space: nowrap;
}
.nano-stop-btn:hover:not(:disabled) { background: #FAEEEE; border-color: var(--refuted); }
.nano-stop-btn:disabled { opacity: 0.6; cursor: default; }
.nano-stopped {
  margin-top: 8px;
  font-family: var(--sans); font-size: 12px;
  color: var(--muted); font-style: italic;
}
.nano-save-wrap { position: relative; display: inline-block; }
.nano-save-btn {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); cursor: pointer;
  font-family: var(--sans); font-size: 12px; line-height: 1; font-weight: 500;
  padding: 4px 10px; border-radius: 4px;
  flex-shrink: 0; white-space: nowrap;
}
.nano-save-btn:hover { color: var(--accent); border-color: var(--accent); }
.nano-save-menu {
  position: absolute; right: 0; top: 100%; margin-top: 4px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
  min-width: 180px;
  padding: 4px 0;
  z-index: 50;
}
.nano-save-menu button {
  display: block; width: 100%; text-align: left;
  border: 0; background: transparent;
  font-family: var(--sans); font-size: 13px; color: var(--ink);
  padding: 7px 14px; cursor: pointer;
}
.nano-save-menu button:hover { background: rgba(27, 58, 107, 0.06); color: var(--accent); }

/* Voice settings — gear button + global popover */
.sp-voice-gear {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); cursor: pointer;
  font-size: 14px; line-height: 1;
  padding: 4px 9px; border-radius: 4px;
  margin-left: 6px;
}
.sp-voice-gear:hover { color: var(--accent); border-color: var(--accent); }
.sp-voice-gear.is-active { color: var(--accent); border-color: var(--accent); background: rgba(27, 58, 107, 0.08); }
.voice-settings-popover {
  position: fixed; top: 60px; right: 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 6px 18px rgba(0,0,0,0.12);
  padding: 12px 14px 14px;
  width: 280px;
  z-index: 100;
  font-family: var(--sans); font-size: 13px;
}
.voice-settings-popover[hidden] { display: none; }
.voice-settings-popover .vs-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.voice-settings-popover h4 {
  margin: 0; font-family: var(--serif); font-weight: 500; font-size: 16px; color: var(--ink);
}
.voice-settings-popover .vs-close {
  border: 0; background: transparent; color: var(--muted); cursor: pointer;
  font-size: 14px; padding: 0 6px;
}
.voice-settings-popover .vs-close:hover { color: var(--refuted); }
.voice-settings-popover .vs-row { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.voice-settings-popover .vs-row label {
  font-size: 12px; color: var(--muted); font-weight: 500;
}
.voice-settings-popover .vs-row select {
  font-family: var(--sans); font-size: 13px;
  padding: 5px 8px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg);
}
.voice-settings-popover .vs-actions { flex-direction: row; align-items: center; }
.voice-settings-popover .vs-checkbox label {
  display: flex; gap: 6px; align-items: center;
  font-family: var(--sans); font-size: 13px; color: var(--ink);
  font-weight: 400; cursor: pointer;
}
.voice-settings-popover .vs-checkbox input[type=checkbox] { margin: 0; }
.voice-settings-popover .vs-note {
  font-size: 11px; color: var(--muted); line-height: 1.4; margin: 8px 0 0;
}

/* Per-output voice override button + popover */
.tts-override-btn {
  border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); cursor: pointer;
  font-size: 12px; line-height: 1;
  padding: 4px 8px; border-radius: 4px;
  margin-left: 6px;
}
.tts-override-btn:hover { color: var(--accent); border-color: var(--accent); }
.tts-override-btn.is-overridden { color: var(--accent); border-color: var(--accent); }
.tts-override-popover {
  position: absolute; top: 100%; right: 0; margin-top: 4px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.10);
  padding: 10px 12px;
  width: 240px; z-index: 60;
  font-family: var(--sans); font-size: 12px;
}
.tts-override-popover[hidden] { display: none; }
.tts-override-popover .vs-row { display: flex; flex-direction: column; gap: 4px; margin-bottom: 8px; }
.tts-override-popover label { font-size: 11px; color: var(--muted); font-weight: 500; }
.tts-override-popover select {
  font-family: var(--sans); font-size: 12px;
  padding: 4px 6px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg);
}
.tts-override-popover .vs-actions { flex-direction: row; gap: 6px; }
.tts-override-popover .btn-tiny {
  border: 1px solid var(--border); background: var(--surface);
  font-family: var(--sans); font-size: 11px; font-weight: 500;
  padding: 4px 9px; border-radius: 4px; cursor: pointer;
}
.tts-override-popover .btn-tiny.primary { color: var(--accent); border-color: var(--accent); }
.tts-override-popover .btn-tiny:hover { background: rgba(27, 58, 107, 0.06); }
.nano-followup-btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--muted);
  cursor: pointer; font-family: var(--sans); font-size: 12px; font-weight: 500;
  padding: 4px 10px; border-radius: 999px; flex-shrink: 0; white-space: nowrap;
}
.nano-followup-btn:hover { color: var(--accent); border-color: var(--accent); background: rgba(27,58,107,0.04); }
.nano-followup-composer {
  margin-top: 12px; padding: 12px;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--r);
  display: flex; flex-direction: column; gap: 8px;
}

/* Markdown rendering — applies wherever mdToHtml output appears */
ul.md-ul, ol.md-ol { margin: 6px 0 10px 24px; padding: 0; }
ul.md-ul li, ol.md-ol li { margin-bottom: 4px; }
.nano-output strong, .tts-translated-text strong, .nano-translation-output strong { font-weight: 600; color: var(--ink); }
.nano-output em, .tts-translated-text em, .nano-translation-output em { font-style: italic; }
.nano-output u, .tts-translated-text u, .nano-translation-output u { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; }
h2.md-h2 { font-family: var(--serif); font-size: 19px; font-weight: 600; margin: 14px 0 6px; color: var(--ink); }
h3.md-h3 { font-family: var(--serif); font-size: 16px; font-weight: 600; margin: 12px 0 5px; color: var(--ink); }
h4.md-h4 { font-family: var(--sans); font-size: 13px; font-weight: 600; margin: 10px 0 4px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
code.md-code {
  font-family: var(--mono); font-size: 13px;
  background: rgba(0, 0, 0, 0.05); padding: 1px 6px; border-radius: 3px;
  color: var(--accent);
}
table.md-table {
  width: 100%; border-collapse: collapse; margin: 8px 0 12px;
  font-family: var(--sans); font-size: 14px;
  background: var(--surface);
}
table.md-table th, table.md-table td {
  border: 1px solid var(--border);
  padding: 6px 10px; text-align: left; vertical-align: top;
}
table.md-table th {
  background: #E8E8E0; font-weight: 600; color: var(--ink);
}
table.md-table tr:nth-child(even) td { background: rgba(244, 244, 238, 0.4); }

/* Cite-check table */
.cite-table {
  width: 100%; border-collapse: collapse;
  font-family: var(--sans); font-size: 13px;
  margin-top: 4px;
}
.cite-table th, .cite-table td {
  border: 1px solid var(--border);
  padding: 8px 10px; text-align: left; vertical-align: top;
}
.cite-table th {
  background: #F4F4EE; font-weight: 600;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted);
}
.cite-table td.cite-num { width: 28px; text-align: center; color: var(--muted); font-family: var(--mono); }
.cite-table td.cite-claim { font-family: var(--serif); color: var(--ink); }
.cite-table td.cite-why { color: var(--muted); }
.cite-table td.cite-src { white-space: nowrap; font-family: var(--mono); font-size: 11px; color: var(--accent); }
.cite-table td.cite-sev { width: 70px; text-align: center; }
.sev-badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px;
  font-family: var(--mono); font-size: 10px; text-transform: uppercase; letter-spacing: 0.04em;
  background: var(--border); color: var(--muted);
}
.sev-badge.sev-high { background: rgba(163, 36, 36, 0.10); color: var(--refuted); border: 1px solid rgba(163, 36, 36, 0.25); }
.sev-badge.sev-med  { background: rgba(184, 134, 11, 0.10); color: var(--caveats);  border: 1px solid rgba(184, 134, 11, 0.25); }
.sev-badge.sev-low  { background: rgba(31, 122, 77, 0.08); color: var(--confirmed); border: 1px solid rgba(31, 122, 77, 0.25); }

/* Persona row in Write mode */
.persona-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 12px; color: var(--muted);
  padding-top: 10px; border-top: 1px solid var(--border);
}
.persona-row label { white-space: nowrap; font-weight: 500; }
.persona-row select {
  font-family: var(--sans); font-size: 12px;
  padding: 4px 8px;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg); color: var(--ink);
}
.persona-hint { font-style: italic; color: var(--muted); }
.nano-input {
  font-family: var(--serif); font-size: 15px; color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px; margin-bottom: 14px; white-space: pre-wrap;
  max-height: 200px; overflow-y: auto;
}
.nano-input.image-input { padding: 0; }
.nano-input.image-input img { max-width: 100%; max-height: 200px; border-radius: 4px; }
.nano-input p { margin: 0 0 6px; }
.nano-input p:last-child { margin-bottom: 0; }
.nano-output {
  font-family: var(--serif); font-size: 16px; line-height: 1.6;
  color: var(--ink); white-space: pre-wrap; min-height: 24px;
}
.nano-output .placeholder { color: var(--muted); font-style: italic; }
.nano-output .nano-err { color: var(--refuted); font-family: var(--sans); font-size: 14px; }
.nano-output .nano-help { margin-top: 10px; font-family: var(--sans); font-size: 13px; color: var(--muted); }
.nano-output .nano-help code {
  font-family: var(--mono); background: #F4F4EE; padding: 1px 6px; border-radius: 3px;
}
.nano-output .blink::after {
  content: '▍'; margin-left: 1px;
  animation: blink 1s steps(2) infinite; color: var(--accent);
}
@keyframes blink { to { opacity: 0; } }

/* ===== Dual-output (translated) ===== */
.nano-translation-divider {
  height: 1px; background: var(--border);
  margin: 20px 0 14px;
}
.nano-translation-tag {
  display: inline-block; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
  background: #F4F4EE; padding: 3px 9px; border-radius: 4px;
}
.nano-translation-head, .tts-translated-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 8px; margin-bottom: 10px;
}
.nano-translation-output { font-family: var(--serif); font-size: 16px; line-height: 1.6; }

/* ===== TTS controls per output ===== */
.tts-controls {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
  display: flex; flex-direction: column; gap: 8px;
}
.tts-controls[hidden] { display: none; }
.tts-row {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: 12px; color: var(--muted);
}
.tts-btn {
  background: var(--surface); border: 1px solid var(--border);
  color: var(--accent);
  font-family: var(--sans); font-size: 12px; font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 4px;
  white-space: nowrap;
}
.tts-btn:hover { background: rgba(27, 58, 107, 0.06); }
.tts-btn.is-playing { background: var(--accent); color: #fff; border-color: var(--accent); }
.tts-lang-note { color: var(--muted); font-style: italic; }
.tts-translate-label { color: var(--muted); white-space: nowrap; }
.tts-translate-lang {
  font-family: var(--sans); font-size: 12px;
  padding: 3px 8px;
  border: 1px solid var(--border); border-radius: 4px;
  background: var(--surface); color: var(--ink);
}
.tts-err {
  color: var(--refuted); font-size: 11px; margin-left: 6px;
}
.tts-err-block {
  display: flex; flex-direction: column; gap: 5px;
  margin-top: 6px; padding: 8px 10px;
  background: rgba(163, 36, 36, 0.04);
  border-left: 2px solid var(--refuted);
  border-radius: 0 4px 4px 0;
  width: 100%;
}
.tts-err-block .tts-err { margin-left: 0; }
.tts-install-btn {
  align-self: flex-start;
  background: var(--accent); color: #fff !important;
  padding: 4px 12px; border-radius: 999px;
  font-family: var(--sans); font-size: 11px; font-weight: 500;
  text-decoration: none; border-bottom: none;
  display: inline-block;
}
.tts-install-btn:hover { background: var(--accent-2); border-bottom: none; }
.tts-install-hint { color: var(--muted); font-size: 11px; font-style: italic; }
.tts-translated-preview {
  margin-top: 12px;
  padding: 10px 14px;
  background: #F4F4EE;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r) var(--r) 0;
}
.tts-translated-tag {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 4px;
}
.tts-translated-text {
  font-family: var(--serif); font-size: 14px; line-height: 1.5;
  color: var(--ink); white-space: pre-wrap;
}

/* ===== Cite-check claim list ===== */
.claim-list { display: flex; flex-direction: column; gap: 10px; }
.claim-card {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--caveats);
  border-radius: var(--r); padding: 12px 14px;
}
.claim-quote {
  font-family: var(--serif); font-size: 15px;
  color: var(--ink); margin: 0 0 6px;
}
.claim-why {
  font-size: 13px; color: var(--muted); margin: 0;
}

/* ===== Compare diff ===== */
.diff-block {
  background: #F4F4EE;
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 12px 14px;
  font-family: var(--mono); font-size: 12px;
  white-space: pre-wrap;
  max-height: 280px; overflow-y: auto;
  margin-bottom: 12px;
}
.diff-line-add { color: var(--confirmed); background: rgba(31, 122, 77, 0.08); }
.diff-line-del { color: var(--refuted);   background: rgba(163, 36, 36, 0.08); }
.diff-line-ctx { color: var(--muted); }

/* ===== Sticky composer (Write mode only) ===== */
.composer {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, var(--bg) 70%, rgba(250,250,247,0));
  padding: 16px var(--pad) 24px;
  z-index: 20;
}
.composer[hidden] { display: none; }
.composer .input-shell { margin: 0 auto; max-width: var(--max-narrow); }
.composer-controls {
  max-width: var(--max-narrow); margin: 0 auto 10px;
  display: flex; flex-direction: column; gap: 8px;
}
.composer-controls:empty { display: none; }
.composer-op-chips { display: flex; flex-wrap: wrap; gap: 4px; }
.composer-op-chip {
  border: 1px solid var(--border); background: var(--bg); color: var(--muted);
  font-family: var(--sans); font-size: 11px;
  padding: 3px 9px; border-radius: 999px; cursor: pointer;
  transition: all 0.12s ease;
}
.composer-op-chip:hover { color: var(--ink); border-color: var(--muted); }
.composer-op-chip.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }
.composer-lang-row { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); }
.composer-lang-row select {
  font-family: var(--sans); font-size: 12px;
  padding: 3px 8px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--bg); color: var(--ink);
}
.composer-direct-toggle {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: var(--muted); cursor: pointer; margin-left: auto; white-space: nowrap;
}
.composer-direct-toggle input { margin: 0; accent-color: var(--accent); }
.composer-direct-toggle:hover { color: var(--ink); }

/* ===== Footer ===== */
footer {
  border-top: 1px solid var(--border); margin-top: 60px;
  padding: 28px var(--pad);
  font-size: 12px; color: var(--muted); background: var(--bg);
}
footer .foot-inner {
  max-width: var(--max-wide); margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; flex-wrap: wrap;
}
footer a { color: var(--muted); border-bottom: none; }
footer a:hover { color: var(--ink); }
footer .foot-links { display: flex; gap: 18px; flex-wrap: wrap; }

/* ===== Mobile ===== */
@media (max-width: 700px) {
  .nav-inner { padding: 12px 16px; }
  .nav-links { gap: 12px; font-size: 13px; }
  .mode-tabs-inner { padding: 8px 12px; gap: 4px; }
  .mode-tab { padding: 5px 10px; font-size: 12px; }
  .mode-pane { padding: 20px 16px 8px; }
  .pane-hero h1 { font-size: 22px; }
  .pane-hero .sub { font-size: 13px; }
  .input-shell input, .input-shell textarea { font-size: 16px; }
  .composer { padding: 14px 16px 18px; }
  .chat-thread { padding: 20px 16px 60px; }
  .nano-block { padding: 14px 16px; }
  footer .foot-inner { flex-direction: column; align-items: flex-start; }
}