/* ===========================================================
   Claude OS section — styles
   Scoped under .cos-scope. Reuses the site's own tokens
   (--ink, --muted, --line, --accent, --card, --paper-2, --c-*)
   and adds the few extra tone vars the renderer references.
   Dark mode + text-size come free from the site's :root vars.
   =========================================================== */

.cos-scope {
  /* extra tokens the renderer/data reference, derived from site vars */
  --surface: var(--card);
  --surface-2: var(--paper-2);
  --radius-sm: 5px;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --accent-bg: rgba(28, 79, 156, .07);
  --accent-bd: rgba(28, 79, 156, .28);
  --amber: #9A6A14;
  --amber-bg: rgba(154, 106, 20, .09);
  --amber-bd: rgba(154, 106, 20, .30);
  --green: var(--c-moat);
  --green-bg: rgba(31, 122, 92, .10);
}
:root[data-theme="dark"] .cos-scope {
  --accent-bg: rgba(106, 160, 224, .12);
  --accent-bd: rgba(106, 160, 224, .30);
  --amber: #D0A45A;
  --amber-bg: rgba(208, 164, 90, .12);
  --amber-bd: rgba(208, 164, 90, .30);
  --green-bg: rgba(80, 194, 144, .12);
}

/* framed instrument panel */
.cos-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--card);
  box-shadow: 0 20px 50px -34px rgba(5, 28, 44, .45);
}
:root[data-theme="dark"] .cos-panel { box-shadow: 0 20px 50px -30px rgba(0, 0, 0, .6); }

.cos-strip {
  display: flex; align-items: center; gap: 12px 14px; flex-wrap: wrap;
  padding: 15px 20px; border-bottom: 1px solid var(--line); background: var(--paper-2);
}
.cos-strip .cos-name { font-family: var(--font-head); font-size: 1.2rem; }
.cos-strip .cos-mono { font: 600 .72rem/1 var(--font-mono); color: var(--faint); letter-spacing: .03em; }
.cos-hb { display: inline-flex; align-items: center; gap: 6px; font: .72rem/1 var(--font-mono); color: var(--muted); }
.cos-hb .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-moat); }
.cos-fresh {
  margin-left: auto; font: 600 .72rem/1 var(--font-body); color: var(--c-moat);
  background: rgba(31, 122, 92, .10); border: 1px solid rgba(31, 122, 92, .3);
  border-radius: 999px; padding: 5px 11px; white-space: nowrap;
}
:root[data-theme="dark"] .cos-fresh { background: rgba(80, 194, 144, .12); border-color: rgba(80, 194, 144, .35); }
.cos-export {
  font-weight: 600; font-size: .78rem; color: var(--ink); background: transparent;
  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 7px 13px; cursor: pointer;
  font-family: var(--font-body); transition: border-color .18s, color .18s;
}
.cos-export:hover { border-color: var(--accent); color: var(--accent); }

.cos-tabs { display: flex; gap: 7px; flex-wrap: wrap; padding: 15px 20px 0; }
.cos-body { padding: 22px 20px; }

/* section header spacing (matches site .section-head rhythm) */
.cos-head { max-width: 660px; margin-bottom: 34px; }

/* print: isolate the section for Save-as-PDF */
@media print {
  @page { size: A4 portrait; margin: 12mm 15mm; }
  body > .sheet > .main > *:not(#how-i-work),
  .nav, footer, .lightbox, .resume-modal, .changelog { display: none !important; }
  #how-i-work { padding: 0 !important; border: 0 !important; }
  .cos-export, #cosPrintScope, .cos-strip, .cos-tabs { display: none !important; }
  .cos-panel { box-shadow: none; border: none; }
  .cos-body { padding: 0 10px; }
  /* single-tab mode: body visible, root hidden */
  #cosRoot { display: none !important; }
  /* all-tabs mode: root visible, body hidden */
  .cos-panel.cos-print-all .cos-body { display: none !important; }
  .cos-panel.cos-print-all #cosRoot { display: block !important; }
  .cos-print-section { page-break-after: always; padding-bottom: 8mm; }
  .cos-print-section:last-child { page-break-after: avoid; }
}

@media (max-width: 680px) {
  .cos-strip { padding: 13px 14px; }
  .cos-tabs { padding: 13px 14px 0; }
  .cos-body { padding: 18px 14px; }
}