/* css/content-premium.css — refined Content tab. Loaded last; everything is scoped to #tab-content. */

#tab-content {
  --cp-ui: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --cp-surface: #ffffff;
  --cp-surface-2: #faf7f1;
  --cp-page: #fffdf9;
  --cp-border: rgba(26, 22, 17, 0.09);
  --cp-border-strong: rgba(26, 22, 17, 0.17);
  --cp-ring: rgba(168, 52, 31, 0.14);
  --cp-accent-soft: rgba(168, 52, 31, 0.08);
  --cp-radius: 14px;
  --cp-radius-sm: 10px;
  --cp-shadow: 0 1px 2px rgba(26, 22, 17, 0.04), 0 8px 24px -16px rgba(26, 22, 17, 0.18);
  --cp-sticky-top: 0px;
  font-family: var(--cp-ui);
}

body.fs-theme-dark #tab-content {
  --cp-surface: var(--card);
  --cp-surface-2: #16181e;
  --cp-page: #1b1d24;
  --cp-border: rgba(255, 255, 255, 0.07);
  --cp-border-strong: rgba(255, 255, 255, 0.14);
  --cp-ring: rgba(224, 105, 79, 0.22);
  --cp-accent-soft: rgba(224, 105, 79, 0.12);
  --cp-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px -16px rgba(0, 0, 0, 0.6);
}

#tab-content > .panel-grid {
  gap: 20px;
  max-width: 1180px;
  margin: 0 auto;
}

/* ── Page header ── */
#tab-content .content-page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 24px;
  flex-wrap: wrap;
  padding: 4px 2px 2px;
}

#tab-content .content-page-title {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 4px;
  color: var(--ink);
}

#tab-content .content-page-lead {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
}

#tab-content .content-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#tab-content .content-stat {
  padding: 5px 11px;
  font-size: 12px;
  color: var(--ink-soft);
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 999px;
}

#tab-content .content-stat strong {
  font-weight: 650;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

/* ── Cards ── */
#tab-content .card {
  padding: 22px 24px;
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: var(--cp-radius);
  box-shadow: var(--cp-shadow);
}

#tab-content .card::before { display: none; }

#tab-content .card-title {
  font-family: var(--cp-ui);
  font-size: 15.5px;
  font-weight: 650;
  letter-spacing: -0.005em;
  margin-bottom: 2px;
}

#tab-content .card-hint {
  font-family: var(--cp-ui);
  font-size: 12.5px;
  font-style: normal;
  line-height: 1.55;
  margin-bottom: 14px;
}

#tab-content .card-hint code,
#tab-content .dz-text code {
  padding: 1px 5px;
  font-size: 11.5px;
  background: var(--cp-surface-2);
  border: 1px solid var(--cp-border);
  border-radius: 5px;
}

body.fs-density-compact #tab-content .card { padding: 16px 18px; }

/* ── Import cards ── */
#tab-content .content-import-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}

#tab-content .content-import-card {
  display: flex;
  flex-direction: column;
}

#tab-content .content-import-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

#tab-content .content-import-badge {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font: 700 16px var(--cp-ui);
  color: #fff;
  background: linear-gradient(135deg, #2b5797, #1e3f73);
  box-shadow: 0 4px 10px -4px rgba(30, 63, 115, 0.55);
}

#tab-content .content-import-badge--tex {
  font-family: var(--font-serif);
  font-size: 19px;
  background: linear-gradient(135deg, #1f7a4d, #145536);
  box-shadow: 0 4px 10px -4px rgba(20, 85, 54, 0.55);
}

#tab-content .content-import-sub {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

#tab-content .content-import-card .card-hint { flex: 1; }

#tab-content .dropzone {
  padding: 22px 18px;
  margin-bottom: 14px;
  background: var(--cp-surface-2);
  border: 1.5px dashed var(--cp-border-strong);
  border-radius: var(--cp-radius-sm);
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

#tab-content .dropzone:hover,
#tab-content .dropzone.drag {
  border-color: var(--accent);
  background: var(--cp-accent-soft);
  box-shadow: 0 0 0 4px var(--cp-ring);
}

#tab-content .dz-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin: 0 auto 10px;
  font-size: 17px;
  color: var(--accent);
  background: var(--cp-surface);
  border: 1px solid var(--cp-border);
  border-radius: 50%;
  box-shadow: 0 2px 6px -3px rgba(26, 22, 17, 0.25);
}

#tab-content .dz-text { font-size: 13.5px; font-weight: 500; }

#tab-content .dz-link {
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

#tab-content .dz-meta {
  margin-top: 6px;
  font-family: var(--cp-ui);
  font-size: 11.5px;
  letter-spacing: normal;
  color: var(--muted);
}

#tab-content .docx-progress { margin: -4px 0 14px; }
#tab-content .docx-progress-track { height: 6px; border-radius: 999px; }
#tab-content .docx-progress-label { font-family: var(--cp-ui); letter-spacing: normal; }

#tab-content .word-import-option {
  flex: none;
  flex-direction: row;
  align-items: flex-start;
  gap: 9px;
  margin: 0 0 14px;
  font-family: var(--cp-ui);
  font-size: 12.5px;
  font-weight: 400;
  letter-spacing: normal;
  text-transform: none;
  line-height: 1.45;
  color: var(--ink-soft);
}

#tab-content .word-import-option input { margin-top: 2px; }

#tab-content input[type="checkbox"] { accent-color: var(--accent); }

#tab-content .content-import-actions {
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 0;
}

#tab-content .content-import-note {
  font-size: 12px;
  color: var(--muted);
}

/* ── Buttons ── */
#tab-content .btn-primary,
#tab-content .btn-ghost {
  min-height: 36px;
  padding: 7px 15px;
  border-radius: var(--cp-radius-sm);
  font-family: var(--cp-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
}

#tab-content .btn-primary { box-shadow: 0 1px 2px rgba(26, 22, 17, 0.12); }

body.fs-theme-dark #tab-content .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

body.fs-theme-dark #tab-content .btn-primary:hover { filter: brightness(1.1); }

#tab-content .btn-ghost {
  background: var(--cp-surface);
  border-color: var(--cp-border-strong);
}

#tab-content .btn-ghost:hover { background: var(--cp-surface-2); }

/* ── Guided import wizard ── */
#tab-content #word-import-wizard {
  border-color: rgba(168, 52, 31, 0.28);
  box-shadow: var(--cp-shadow), 0 0 0 4px var(--cp-ring);
}

#tab-content .wi-preview,
#tab-content .wi-selection-box { border-radius: var(--cp-radius-sm); }

/* ── Metadata tip ── */
#tab-content .meta-content-tip {
  padding: 12px 16px;
  background: var(--cp-surface-2);
  box-shadow: none;
}

#tab-content .meta-content-tip .card-hint { font-size: 12.5px; }

#tab-content .meta-jump-link {
  font: 600 12.5px var(--cp-ui);
  color: var(--accent);
}

/* ── Article body card ── */
#tab-content .content-body-card { padding: 24px 24px 26px; }

#tab-content .content-body-head .card-hint { margin-bottom: 16px; }

/* Collapsible panels (paste full text, cross-reference guide) */
#tab-content .content-fold {
  margin: 0 0 12px;
  padding: 0;
  background: var(--cp-surface-2);
  border: 1px solid var(--cp-border);
  border-radius: var(--cp-radius-sm);
  font-style: normal;
}

#tab-content .content-fold-summary {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 12px 16px 12px 38px;
  position: relative;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

#tab-content .content-fold-summary::-webkit-details-marker { display: none; }

#tab-content .content-fold-summary::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 17px;
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg);
  transition: transform 0.15s;
}

#tab-content .content-fold[open] > .content-fold-summary::before {
  transform: rotate(45deg);
  top: 15px;
}

#tab-content .content-fold-summary:hover .content-fold-title { color: var(--accent); }

#tab-content .content-fold-title {
  font-size: 13.5px;
  font-weight: 650;
  color: var(--ink);
}

#tab-content .content-fold-sub {
  font-size: 12px;
  color: var(--muted);
}

#tab-content .content-fold[open] > .content-fold-summary { border-bottom: 1px solid var(--cp-border); }

#tab-content .content-fold > :not(summary) { margin-left: 16px; margin-right: 16px; }
#tab-content .content-fold > :not(summary):first-of-type { margin-top: 14px; }
#tab-content .content-fold > :last-child { margin-bottom: 16px; }

#tab-content .fulltext-paste-textarea {
  width: calc(100% - 32px);
  min-height: 200px;
  padding: 12px 14px;
  background: var(--cp-surface);
  border: 1px solid var(--cp-border-strong);
  border-radius: var(--cp-radius-sm);
}

#tab-content .fulltext-paste-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--cp-ring);
}

#tab-content .crossref-help ol {
  margin: 14px 16px 16px 36px;
  font-size: 12.5px;
  color: var(--ink-soft);
}

#tab-content .crossref-help li { margin-bottom: 6px; line-height: 1.55; }

#tab-content .citation-warnings {
  min-height: 0;
  margin: 0;
  font-family: var(--cp-ui);
  font-size: 12px;
}

#tab-content .citation-warnings:not(:empty) {
  margin-bottom: 8px;
  padding: 8px 12px;
  background: var(--cp-surface-2);
  border: 1px solid var(--cp-border);
  border-radius: 8px;
}

#tab-content .citation-warnings.warn:not(:empty) {
  background: #fdf1d8;
  border-color: rgba(154, 98, 0, 0.25);
}

body.fs-theme-dark #tab-content .citation-warnings.warn:not(:empty) { background: rgba(240, 194, 107, 0.12); }

/* ── Editor toolbar ── */
#tab-content .editor-toolbar {
  position: sticky;
  top: var(--cp-sticky-top);
  z-index: 5;
  gap: 6px;
  margin-top: 16px;
  padding: 8px 10px;
  background: color-mix(in srgb, var(--cp-surface) 94%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--cp-border-strong);
  border-bottom: 1px solid var(--cp-border);
  border-radius: var(--cp-radius-sm) var(--cp-radius-sm) 0 0;
}

#tab-content .editor-toolbar-row { gap: 6px; }

#tab-content .editor-toolbar-row--insert {
  padding-top: 6px;
  border-top: 1px solid var(--cp-border);
}

#tab-content .editor-toolbar-group {
  gap: 1px;
  padding: 2px;
  background: var(--cp-surface-2);
  border: 1px solid var(--cp-border);
  border-radius: 9px;
}

#tab-content .editor-toolbar .toolbar-sep { display: none; }

#tab-content .editor-toolbar button {
  min-width: 30px;
  min-height: 30px;
  padding: 4px 9px;
  font-family: var(--cp-ui);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--ink-soft);
  border: 1px solid transparent;
  border-radius: 7px;
}

#tab-content .editor-toolbar button:hover {
  background: var(--cp-surface);
  border-color: var(--cp-border);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(26, 22, 17, 0.08);
}

#tab-content .editor-toolbar button.is-active {
  background: var(--cp-accent-soft);
  border-color: rgba(168, 52, 31, 0.3);
  color: var(--accent);
}

#tab-content .editor-toolbar button b,
#tab-content .editor-toolbar button i,
#tab-content .editor-toolbar button u,
#tab-content .editor-toolbar button s { font-family: var(--font-serif); font-size: 14px; }

#tab-content .editor-toolbar .editor-toolbar-btn--danger { color: #9b2c1b; }

#tab-content .editor-toolbar .editor-toolbar-btn--danger:hover {
  background: rgba(155, 44, 27, 0.08);
  border-color: rgba(155, 44, 27, 0.22);
  color: #9b2c1b;
}

#tab-content .editor-toolbar-group--align button { min-width: 30px; padding: 4px 6px; }

.editor-align-icon {
  display: block;
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
}

#tab-content .editor-format-select-wrap {
  flex: none;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  padding: 0 4px 0 6px;
  font-family: var(--cp-ui);
  letter-spacing: normal;
  text-transform: none;
}

#tab-content .editor-format-label {
  font-family: var(--cp-ui);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: normal;
  text-transform: none;
  color: var(--muted);
}

#tab-content #editor-format-select {
  min-width: 132px;
  min-height: 32px;
  padding: 4px 30px 4px 10px;
  appearance: none;
  font: 500 12.5px var(--cp-ui);
  color: var(--ink);
  background: var(--cp-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b6358' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right 10px center;
  border: 1px solid var(--cp-border-strong);
  border-radius: 8px;
  cursor: pointer;
}

#tab-content #editor-format-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--cp-ring);
}

/* ── Editor page ── */
#tab-content #art-body .ProseMirror {
  padding: 36px 48px 40px;
  background: var(--cp-page);
  border: 1px solid var(--cp-border-strong);
  border-top: 0;
  border-radius: 0 0 var(--cp-radius-sm) var(--cp-radius-sm);
  box-shadow: inset 0 8px 12px -12px rgba(26, 22, 17, 0.18);
  transition: box-shadow 0.2s;
}

#tab-content #art-body .ProseMirror:focus {
  border-color: var(--cp-border-strong);
  box-shadow: inset 0 8px 12px -12px rgba(26, 22, 17, 0.18), 0 0 0 3px var(--cp-ring);
}

#tab-content #art-body .ProseMirror h2 {
  margin: 28px 0 10px;
  padding-bottom: 6px;
  font-size: 1.4em;
  border-bottom: 1px solid var(--cp-border);
}

#tab-content #art-body .ProseMirror > h2:first-child { margin-top: 0; }

#tab-content #art-body .ProseMirror h3 { margin: 20px 0 8px; font-size: 1.15em; }

#tab-content #art-body .ProseMirror blockquote { border-radius: 0 6px 6px 0; }

#tab-content #art-body .ProseMirror table { border-radius: 6px; }

/* ── Responsive ── */
@media (max-width: 900px) {
  #tab-content .content-import-grid { grid-template-columns: 1fr; }
  #tab-content #art-body .ProseMirror { padding: 24px 20px 28px; }
  #tab-content .content-page-title { font-size: 22px; }
}