/* ==========================================================================
   A.I.P STEEL SOLUCIONES — ALEJANDRO ISAZA POSADA
   SISTEMA VANGUARDISTA DE DISEÑO ARQUITECTÓNICO CORPORATIVO
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: var(--line-height-normal);
  color: var(--color-slate-dark);
  background-color: var(--bg-surface-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

ul {
  list-style: none;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-wide {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--section-padding-desktop);
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding: var(--section-padding-mobile);
  }
}

/* Estilos de Botones Globales con Alto Valor Visual */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.85rem 1.75rem;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-navy) 0%, var(--color-navy-dark) 100%);
  color: #FFFFFF;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: var(--color-navy-dark);
}

.btn-quote {
  background: linear-gradient(135deg, var(--accent-gold) 0%, #B38628 100%);
  color: var(--color-primary-navy);
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(226, 184, 87, 0.35);
}

.btn-quote:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(226, 184, 87, 0.5);
  background: linear-gradient(135deg, #FADB7F 0%, var(--accent-gold) 100%);
}

.btn-secondary-clean {
  background: #FFFFFF;
  color: var(--color-primary-navy);
  border: 1.5px solid #CBD5E1;
}

.btn-secondary-clean:hover {
  border-color: var(--color-primary-navy);
  background: #F8FAFC;
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
  font-weight: 700;
}

.btn-whatsapp:hover {
  background-color: #1EBE5D;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.3);
}

/* Sección Oscura de Alto Impacto para Steel Frame y Diferenciales */
.section-navy-premium {
  background: linear-gradient(135deg, #091A36 0%, #061124 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.section-navy-premium::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(226, 184, 87, 0.12) 0%, transparent 40%),
              radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
  pointer-events: none;
}

.section-navy-premium h2,
.section-navy-premium h3,
.section-navy-premium h4 {
  color: #FFFFFF;
}

.section-navy-premium p {
  color: #CBD5E1;
}

/* Encabezados de Sección */
.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3.75rem auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.25rem;
  border-radius: var(--border-radius-full);
  background: rgba(9, 26, 54, 0.08);
  color: var(--color-primary-navy);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.section-navy-premium .section-badge {
  background: rgba(226, 184, 87, 0.15);
  color: var(--accent-gold);
  border: 1px solid rgba(226, 184, 87, 0.3);
}

.section-title {
  font-size: var(--font-size-h2);
  font-weight: 800;
  color: var(--color-primary-navy);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-steel-grey);
  line-height: 1.6;
}

/* Sección Clara de Fondo */
.section-white {
  background-color: #FFFFFF;
}

.section-slate {
  background-color: var(--bg-surface-light);
}

/* --------------------------------------------------------------------------
   FRANJA COMPACTA "¿POR QUÉ ELEGIRNOS?" (REDUCIDA Y ELEGANTE ESTILO COMPROMISO)
   -------------------------------------------------------------------------- */
.why-choose-banner {
  width: 100%;
  background-color: #091A36;
  position: relative;
  overflow: hidden;
  padding: 2.25rem 0;
  border-top: 1px solid rgba(226, 184, 87, 0.4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.why-banner-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2.5rem;
  position: relative;
  z-index: 2;
  box-sizing: border-box;
}

.why-choose-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2.5rem;
  width: 100%;
}

.why-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: relative;
}

.why-col:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 10%;
  right: -1.25rem;
  width: 1px;
  height: 80%;
  background-color: rgba(226, 184, 87, 0.25);
}

.why-num {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  color: #E2B857;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
}

.why-title {
  font-family: var(--font-heading);
  font-size: 1.025rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  line-height: 1.3;
}

.why-desc {
  font-size: 0.875rem;
  color: #CBD5E1;
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 992px) {
  .why-choose-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  .why-col:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 576px) {
  .why-choose-row {
    grid-template-columns: 1fr;
  }
}