:root {

  --navy: #0D2240;

  --burg: #7B303E;

  --gold: #D2AF57;

  --bg: #F7F5F1;

  --text: #1A1A2E;

  --muted: #6B7280;

  --card: #FFFFFF;

  --radius: 14px;

  --ok: #166534;

  --warn: #92400e;

}



*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }



body {

  font-family: 'Inter', system-ui, sans-serif;

  background: var(--bg);

  color: var(--text);

  min-height: 100vh;

  line-height: 1.55;

}



body::before {

  content: '';

  position: fixed;

  left: 0; top: 0;

  width: 5px; height: 100%;

  background: linear-gradient(180deg, var(--gold), var(--burg), var(--navy));

  z-index: 50;

}



.lab-topbar {

  background: var(--navy);

  min-height: 60px;

  padding: 0 clamp(1rem, 4vw, 2.5rem);

  display: flex;

  align-items: center;

  justify-content: space-between;

  border-bottom: 3px solid var(--gold);

}



.lab-brand {

  display: flex;

  align-items: center;

  gap: 0.65rem;

  color: #fff;

  font-size: 0.82rem;

  font-weight: 600;

  letter-spacing: 0.08em;

  text-transform: uppercase;

}



.lab-brand .dot {

  width: 9px; height: 9px;

  border-radius: 50%;

  background: var(--gold);

}



.lab-topbar-sub {

  color: rgba(255,255,255,0.55);

  font-size: 0.75rem;

}



.lab-link {

  color: var(--gold);

  font-size: 0.75rem;

  text-decoration: none;

  letter-spacing: 0.06em;

}



.lab-wrap {

  max-width: 920px;

  margin: 0 auto;

  padding: 2rem clamp(1rem, 4vw, 2rem) 4rem;

}



.lab-wrap-narrow { max-width: 480px; }



.lab-hero { margin-bottom: 1.5rem; }



.eyebrow {

  font-size: 0.68rem;

  font-weight: 700;

  letter-spacing: 0.18em;

  text-transform: uppercase;

  color: var(--burg);

  margin-bottom: 0.5rem;

}



.lab-hero h1 {

  font-family: 'Playfair Display', Georgia, serif;

  font-size: clamp(1.7rem, 4vw, 2.4rem);

  color: var(--navy);

  line-height: 1.15;

  margin-bottom: 0.5rem;

}



.lead {

  color: var(--muted);

  font-size: 0.95rem;

  max-width: 42ch;

}



.lab-card {

  background: var(--card);

  border: 1px solid rgba(0,0,0,0.07);

  border-radius: var(--radius);

  padding: clamp(1.25rem, 3vw, 1.75rem);

  margin-bottom: 1.25rem;

  box-shadow: 0 2px 12px rgba(13,34,64,0.05);

}



.lab-form label {

  display: block;

  font-size: 0.82rem;

  font-weight: 600;

  color: var(--navy);

  margin-bottom: 0.4rem;

}



.lab-form input[type="text"] {

  width: 100%;

  padding: 0.85rem 1rem;

  border: 2px solid #e2e8f0;

  border-radius: 10px;

  font-size: 1.25rem;

  font-weight: 700;

  letter-spacing: 0.04em;

  color: var(--navy);

  text-align: center;

}



.lab-form input:focus {

  outline: none;

  border-color: var(--gold);

  box-shadow: 0 0 0 3px rgba(210,175,87,0.25);

}



.hint {

  font-size: 0.75rem;

  color: var(--muted);

  margin: 0.45rem 0 1.1rem;

  text-align: center;

}



.btn-primary {

  width: 100%;

  border: none;

  border-radius: 10px;

  padding: 0.85rem 1rem;

  background: var(--navy);

  color: #fff;

  font-size: 0.95rem;

  font-weight: 700;

  cursor: pointer;

}



.btn-primary:hover { background: #16355f; }



.privacy {

  margin-top: 1.25rem;

  font-size: 0.78rem;

  color: var(--muted);

  line-height: 1.5;

  border-top: 1px solid #eee;

  padding-top: 1rem;

}



.demo-note {

  font-size: 0.8rem;

  color: var(--muted);

  text-align: center;

}



.demo-note a { color: var(--burg); }



/* Resumen */

.resumen-ids {

  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));

  gap: 1rem;

  margin-bottom: 1.25rem;

  padding-bottom: 1.25rem;

  border-bottom: 1px solid #eee;

}



.resumen-ids .label {

  display: block;

  font-size: 0.68rem;

  font-weight: 700;

  letter-spacing: 0.12em;

  text-transform: uppercase;

  color: var(--muted);

  margin-bottom: 0.25rem;

}



.badge-grupo {

  display: inline-block;

  background: rgba(210,175,87,0.18);

  color: #8B6914;

  padding: 0.15em 0.55em;

  border-radius: 6px;

  font-size: 0.95rem;

}



.resumen-stats {

  display: grid;

  grid-template-columns: repeat(3, 1fr);

  gap: 0.75rem;

}



.stat {

  background: #f8fafc;

  border-radius: 12px;

  padding: 1rem;

  text-align: center;

  border: 1px solid #eef2f7;

}



.stat-label {

  display: block;

  font-size: 0.7rem;

  color: var(--muted);

  margin-bottom: 0.35rem;

}



.stat-value {

  font-family: 'Playfair Display', Georgia, serif;

  font-size: 1.8rem;

  font-weight: 900;

  color: var(--navy);

  line-height: 1;

}



.stat-value small {

  font-size: 0.95rem;

  font-weight: 700;

  color: var(--muted);

}



.stat-nota {

  background: #ecfdf5;

  border-color: #bbf7d0;

}



.stat-nota .stat-value { color: var(--ok); }



.section-head { margin-bottom: 1rem; }



.section-head h2 {

  font-family: 'Playfair Display', Georgia, serif;

  font-size: 1.25rem;

  color: var(--navy);

  margin-bottom: 0.3rem;

}



.section-head p {

  font-size: 0.85rem;

  color: var(--muted);

}



.section-head code {

  font-size: 0.78rem;

  background: #f1f5f9;

  padding: 0.1em 0.35em;

  border-radius: 4px;

}



.docs-frame-wrap {

  position: relative;

  border-radius: 12px;

  overflow: hidden;

  border: 1px solid #e2e8f0;

  background: #f8fafc;

  min-height: 320px;

}



.docs-frame {

  width: 100%;

  height: 480px;

  border: 0;

  display: none;

}



.docs-frame.has-src { display: block; }



.docs-placeholder {

  position: absolute;

  inset: 0;

  display: flex;

  flex-direction: column;

  align-items: center;

  justify-content: center;

  text-align: center;

  padding: 2rem;

  color: var(--muted);

  font-size: 0.88rem;

}



.docs-placeholder strong {

  color: var(--navy);

  margin-bottom: 0.5rem;

  font-size: 1rem;

}



.docs-placeholder code {

  font-size: 0.72rem;

  word-break: break-all;

}



/* Rúbrica */

.rub-tabla {

  width: 100%;

  border-collapse: collapse;

  font-size: 0.85rem;

  margin-bottom: 1.25rem;

}



.rub-tabla th {

  background: var(--navy);

  color: #fff;

  text-align: left;

  padding: 0.7rem 0.85rem;

  font-weight: 600;

  font-size: 0.75rem;

  letter-spacing: 0.04em;

}



.rub-tabla td {

  padding: 0.75rem 0.85rem;

  border-bottom: 1px solid #eef2f7;

  vertical-align: top;

}



.rub-tabla tbody tr:nth-child(even) { background: #f8fafc; }



.rub-tabla .num {

  text-align: center;

  font-weight: 700;

  font-variant-numeric: tabular-nums;

  white-space: nowrap;

}



.rub-tabla tfoot td {

  background: #f1f5f9;

  font-weight: 700;

  border-top: 2px solid var(--gold);

}



.rub-cols {

  display: grid;

  grid-template-columns: 1fr 1fr;

  gap: 1rem;

}



.rub-box {

  border-radius: 12px;

  padding: 1rem 1.1rem;

  font-size: 0.85rem;

}



.rub-box h3 {

  font-size: 0.8rem;

  letter-spacing: 0.08em;

  text-transform: uppercase;

  margin-bottom: 0.55rem;

}



.rub-box ul {

  margin-left: 1.1rem;

  color: #334155;

}



.rub-box li { margin-bottom: 0.35rem; }



.fortalezas {

  background: #ecfdf5;

  border: 1px solid #bbf7d0;

}



.fortalezas h3 { color: var(--ok); }



.mejorar {

  background: #fffbeb;

  border: 1px solid #fde68a;

}



.mejorar h3 { color: var(--warn); }



.alert-error {

  background: #fef2f2;

  color: #991b1b;

  border: 1px solid #fecaca;

  border-radius: 10px;

  padding: 0.75rem 1rem;

  margin-bottom: 1rem;

  font-size: 0.88rem;

}



@media (max-width: 640px) {

  .resumen-stats { grid-template-columns: 1fr; }

  .rub-cols { grid-template-columns: 1fr; }

  .rub-tabla { font-size: 0.78rem; }

  .docs-frame { height: 360px; }

}