/* ============================================================
   SECCIÓN 4: SECCIÓN PRINCIPAL ISO 37301
   Mismo sistema visual: Cormorant Garamond / Cormorant SC,
   negro absoluto + azul oxford reservado para líneas, tipografía y detalle fino.
   Requiere Tabler Icons enlazado en el <head> (clases "ti ti-*").
   ============================================================ */

.iso-section {
  --iso-font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --iso-font-caps: 'Cormorant SC', 'Cormorant Garamond', serif;

  --lot-ox-900: #0D1F35;
  --lot-ox-700: #1A3A5C;
  --lot-ox-500: #2563A8;
  --lot-ox-400: #3B82C4;
  --lot-ox-300: #6AAAD9;
  --lot-ox-200: #93C4EA;
  --lot-ox-100: #D6EAFA;

  --iso-black: #060F1B;
  --iso-black-2: #03080F;
  --iso-black-3: var(--lot-ox-900);

  --iso-accent-500: var(--lot-ox-400);
  --iso-accent-400: var(--lot-ox-200);

  --iso-ink: var(--lot-ox-100);
  --iso-ink-muted: rgba(214, 234, 250, 0.6);
  --iso-ink-faint: rgba(214, 234, 250, 0.32);

  background: var(--iso-black);
  padding: 110px 24px;
  font-family: var(--iso-font-display);
}

.iso-section .wrap {
  max-width: 1160px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

/* ── Columna izquierda ── */
.iso-section .tag {
  font-family: var(--iso-font-caps);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--iso-accent-400);
  margin: 0 0 18px;
}

.iso-section .h1 {
  font-family: var(--iso-font-display);
  font-size: clamp(2.6rem, 6vw, 4.6rem);
  font-weight: 600;
  color: var(--iso-ink);
  line-height: 0.98;
  letter-spacing: 0.01em;
  margin: 0 0 22px;
}
.iso-section .h1 span {
  color: var(--iso-accent-400);
  font-style: italic;
}

.iso-section .sub {
  font-size: 1.08rem;
  color: var(--iso-ink-muted);
  line-height: 1.75;
  max-width: 42ch;
  margin: 0 0 36px;
}

.iso-section .stats {
  display: flex;
  gap: 32px;
  padding: 24px 0;
  margin-bottom: 36px;
  border-top: 1px solid rgba(59, 130, 196, 0.25);
  border-bottom: 1px solid rgba(59, 130, 196, 0.25);
}

.iso-section .stat-val {
  font-family: var(--iso-font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--iso-ink);
  line-height: 1.2;
}
.iso-section .stat-accent {
  color: var(--iso-accent-400);
  font-style: italic;
}

.iso-section .stat-lbl {
  font-family: var(--iso-font-caps);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--iso-ink-faint);
  margin-top: 4px;
}

.iso-section .ctas {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.iso-section .btn-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 3px;
  background: var(--iso-black-3);
  color: var(--iso-accent-400);
  border: 1px solid var(--iso-accent-500);
  font-family: var(--iso-font-caps);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background 0.22s, border-color 0.22s, box-shadow 0.22s;
}
.iso-section .btn-main:hover {
  background: var(--iso-black-2);
  border-color: var(--iso-accent-400);
  box-shadow: 0 6px 22px rgba(59, 130, 196, 0.3);
}

.iso-section .btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--iso-font-caps);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--iso-ink-muted);
  text-decoration: none;
  transition: color 0.22s, gap 0.22s;
}
.iso-section .btn-ghost i { color: var(--iso-accent-400); transition: transform 0.22s; }
.iso-section .btn-ghost:hover { color: var(--iso-ink); gap: 11px; }
.iso-section .btn-ghost:hover i { transform: translateX(3px); }

/* ── Columna derecha: lista de pilares ── */
.iso-section .right {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.iso-section .pilar {
  position: relative;
  background: var(--iso-black-3);
  border: 1px solid rgba(59, 130, 196, 0.25);
  border-radius: 6px;
  padding: 18px 20px;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s;
}
.iso-section .pilar:hover {
  border-color: rgba(59, 130, 196, 0.45);
}
.iso-section .pilar.active {
  border-color: var(--iso-accent-400);
  background: var(--iso-black-2);
}

.iso-section .pilar-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.iso-section .pilar-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid rgba(59, 130, 196, 0.5);
  color: var(--iso-accent-400);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.iso-section .pilar.active .pilar-icon {
  transform: scale(1.06);
  box-shadow: 0 0 16px rgba(59, 130, 196, 0.32);
}

.iso-section .pilar-name {
  flex: 1;
  font-family: var(--iso-font-caps);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--iso-ink);
}

.iso-section .pilar-arrow {
  color: var(--iso-ink-faint);
  font-size: 15px;
  transition: transform 0.3s, color 0.3s;
}
.iso-section .pilar.active .pilar-arrow {
  transform: rotate(90deg);
  color: var(--iso-accent-400);
}

.iso-section .pilar-body {
  font-size: 0.9rem;
  color: var(--iso-ink-muted);
  line-height: 1.6;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, opacity 0.3s ease, margin 0.35s ease;
  margin-top: 0;
}
.iso-section .pilar.active .pilar-body {
  max-height: 120px;
  opacity: 1;
  margin-top: 12px;
}

.iso-section .progress-bar {
  height: 3px;
  border-radius: 100px;
  background: rgba(59, 130, 196, 0.16);
  overflow: hidden;
  margin-top: 14px;
}
.iso-section .progress-fill {
  height: 100%;
  width: 0;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--iso-accent-500), var(--iso-accent-400));
  transition: width 0.8s ease;
}
.iso-section .pilar.active .progress-fill {
  width: var(--pct);
}
/* ===== NUEVO: Selector de Identificador Tributario (copiar tal cual en las 7 landings) ===== */
.lot-tax-group {
display: grid;
grid-template-columns: 86px 1fr;
gap: 8px;
align-items: center;
}

.lot-tax-select {
position: relative;
width: 100%;
}

.lot-tax-current {
width: 100%;
height: 45px;
padding: 0 7px;
border-radius: 3px;
border: 1px solid rgba(59, 130, 196, 0.45);
background: var(--iso-black);
color: #ffffff;
font-family: var(--font-display);
font-size: 0.82rem;
display: flex;
align-items: center;
justify-content: center;
gap: 5px;
cursor: pointer;
}

.lot-tax-current:focus {
outline: none;
border-color: var(--lot-ox-400);
box-shadow: 0 0 0 2px rgba(59, 130, 196, 0.45);
}

.lot-tax-label {
font-size: 0.82rem;
font-weight: 600;
color: #ffffff;
}

.lot-tax-arrow {
font-size: 0.75rem;
color: var(--ink-faint);
}

.lot-tax-dropdown {
position: absolute;
top: calc(100% + 6px);
left: 0;
width: 260px;
max-height: 260px;
overflow-y: auto;
background-color: #14110f;
border: 1px solid rgba(59, 130, 196, 0.45);
border-radius: 4px;
box-shadow: 0 18px 35px rgba(0,0,0,0.45);
z-index: 100;
display: none;
padding: 6px;
}

.lot-tax-select.is-open .lot-tax-dropdown {
display: block;
}

.lot-tax-option {
width: 100%;
padding: 10px 9px;
border: none;
background: transparent;
color: #ffffff;
font-family: var(--font-display);
font-size: 0.9rem;
display: flex;
align-items: center;
justify-content: space-between;
gap: 10px;
cursor: pointer;
border-radius: 3px;
text-align: left;
}

.lot-tax-option:hover {
background-color: rgba(59, 130, 196, 0.45);
}

.lot-tax-option small {
color: rgba(255,255,255,0.55);
font-size: 0.8rem;
}

.lot-tax-option span {
display: flex;
align-items: center;
gap: 8px;
}

.lot-tax-current img,
.lot-tax-option img {
width: 18px;
height: 13px;
object-fit: cover;
border-radius: 2px;
display: inline-block;
}

@media (max-width: 480px) {
.lot-tax-group {
grid-template-columns: 78px 1fr;
gap: 7px;
}
.lot-tax-current {
padding: 0 5px;
font-size: 0.78rem;
gap: 4px;
}
.lot-tax-label {
font-size: 0.78rem;
}
}
/* ===== FIN NUEVO ===== */
/* ── Responsive ── */
@media (max-width: 900px) {
  .iso-section { padding: 80px 20px; }
  .iso-section .wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .iso-section .sub { max-width: 100%; }
  .iso-section .stats { flex-wrap: wrap; row-gap: 18px; }
}

@media (max-width: 480px) {
  .iso-section .ctas { flex-direction: column; align-items: flex-start; }
  .iso-section .btn-main { width: 100%; justify-content: center; }
}