/* ════════════════════════════════════════════════════════════════
   AICIVSIM — V3 BRIDGE
   Maps the original design's class + token vocabulary onto the v3
   design system, so long-form documents written against the old
   stylesheet (paper.html, 404.html) render in the current language
   without rewriting their markup.

   Load AFTER css/v3.css, INSTEAD OF css/style.css.
   Everything here is a translation layer — no new design decisions.
   ════════════════════════════════════════════════════════════════ */

/* ── tokens: old names → v3 values ── */
:root{
  --text-primary:var(--ink); --text-secondary:var(--ink-2);
  --text-muted:var(--ink-3); --text-faint:var(--ink-4);
  --border:var(--hairline); --border-strong:var(--hairline-strong);
  --bg-raised:var(--bg-elev); --bg-module:var(--bg-elev);
  --green:var(--good); --red:var(--bad); --yellow:var(--sc-bau);
  --blue:var(--sys-transition);
  --climate:var(--sys-climate); --governance:var(--sys-governance);
  --workforce:var(--sys-transition); --equity:var(--sys-civilization);
  --technology:var(--sys-ai);
}

/* ── layout ── */
.page{max-width:var(--col);margin:0 auto;padding:0 32px}
.section{padding:var(--s6) 0;border-bottom:1px solid var(--hairline)}
.section:last-of-type{border-bottom:none}
.chapter-divider{padding:var(--s5) 0 0}
.section-num{display:block;font-family:var(--font-mono);font-size:11px;
  font-weight:700;color:var(--ink-4);letter-spacing:.1em;margin-bottom:10px}
.rule{border:none;border-top:1px solid var(--hairline);margin:var(--s3) 0}
.grid{display:grid;gap:12px;grid-template-columns:repeat(2,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.cell{border:1px solid var(--hairline);border-radius:var(--r);padding:20px}

/* ── type: the old t-scale → the v3 scale ── */
.t1,.t1-sm,.t1-xs{font-family:var(--font-display);font-size:clamp(28px,4vw,40px);
  font-weight:600;letter-spacing:-.02em;line-height:1.15;color:var(--ink)}
.t2,.t2-lg,.t2-xl{font-family:var(--font-display);font-size:22px;font-weight:600;
  letter-spacing:-.01em;line-height:1.25;color:var(--ink)}
.t2-lg{font-size:19px}
.t3{font-family:var(--font-body);font-size:13px;font-weight:600;
  letter-spacing:.02em;color:var(--ink-2);line-height:1.5}
.t4{font-size:13.5px;line-height:1.65;color:var(--ink-3)}
.body{font-size:15px;line-height:1.7;color:var(--ink-2)}
.num-lg,.num-md,.num-sm{font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-weight:700;color:var(--ink)}
.num-lg{font-size:30px;letter-spacing:-.02em}
.num-md{font-size:20px}
.num-sm{font-size:14px}
.pullquote{border-left:2px solid var(--accent);padding:6px 0 6px 22px;
  font-size:16px;line-height:1.7;color:var(--ink-2);margin:var(--s3) 0}
.tag{display:inline-block;font-family:var(--font-mono);font-size:10.5px;
  font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-3);border:1px solid var(--hairline);border-radius:6px;
  padding:3px 9px;margin:2px 4px 2px 0}

/* ── masthead → v3 page hero ── */
.masthead{padding:var(--s5) 0 var(--s4);border-bottom:1px solid var(--hairline)}
.masthead-inner{max-width:var(--col);margin:0 auto;padding:0 32px}
.masthead-breadcrumb{font-family:var(--font-body);font-size:11px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px}
.masthead-breadcrumb a{color:var(--accent)}

/* ── spacing utilities ── */
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}
.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}
.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}
.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.mb-8{margin-bottom:32px}
.flex{display:flex}.items-baseline{align-items:baseline}
.items-center{align-items:center}.flex-wrap{flex-wrap:wrap}
.gap-4{gap:16px}.gap-8{gap:8px}.text-right{text-align:right}

/* ── document furniture ── */
.toc-link{display:flex;align-items:baseline;gap:10px;color:var(--ink-2);
  border-bottom:1px solid var(--hairline);padding:10px 10px;margin:0 -10px;
  border-radius:8px;font-size:13.5px;transition:color .15s,background .15s}
.toc-link:hover{color:var(--ink);background:var(--bg-elev)}
.toc-link:last-child{border-bottom:none}

@media(max-width:900px){
  .grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .page,.masthead-inner{padding:0 20px}
}
@media(max-width:640px){
  .page,.masthead-inner{padding:0 16px}
}

/* ── print: the paper must still print cleanly ── */
@media print{
  .nav,.deck,.v3-footer,.back-to-top,.reading-progress,
  .cmd-backdrop,.cmd-dialog{display:none!important}
  body{background:#fff;color:#000}
  .cell{border-color:#ddd;break-inside:avoid}
  .section{border-color:#eee;padding:24px 0}
  a{color:#000}
}