/* ==========================================================================
   LAYOUT Y ESTRUCTURA GLOBAL — CONSTRUCCIONES JGP2410 C.A.
   ========================================================================== */

/* --- Contenedores Principales --- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide-max-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* --- Secciones y Fondos --- */
.section {
  padding-block: clamp(3rem, 6vw, 5.5rem);
}

.section-sm {
  padding-block: clamp(2rem, 4vw, 3.5rem);
}

.section-alt {
  background-color: var(--color-gray-light);
}

.section-dark {
  background-color: var(--color-deep-blue);
  color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.section-dark .lead,
.section-dark .text-muted {
  color: #D1D5DB;
}

/* --- Encabezado de Sección --- */
.section-header {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.section-header--center {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
}

/* --- Sistema de Cuadrícula Responsive (CSS Grid) --- */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.grid-4 {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Utilidades Flexbox --- */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

/* --- Accesibilidad: Oculto solo para lectores de pantalla --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}