/* ============================================================
   LAYOUT.CSS — Contenedores, grids y secciones
   Clases reutilizables de estructura/layout
   ============================================================ */

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

.container--narrow {
  max-width: var(--max-width-narrow);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* --------------------------------------------------
   SECCIONES
-------------------------------------------------- */
.section {
  padding-block: var(--sp-20);
}

.section--sm {
  padding-block: var(--sp-12);
}

.section--lg {
  padding-block: var(--sp-24);
}

.section--gray {
  background-color: var(--clr-gray-bg);
}

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

.section--primary {
  background-color: var(--clr-primary-dark);
  background-image: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 100%);
  color: var(--clr-white);
}

/* --------------------------------------------------
   ENCABEZADOS DE SECCIÓN
-------------------------------------------------- */
.section-header {
  margin-bottom: var(--sp-12);
}

.section-header--center {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: var(--sp-12);
}

.section__label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-primary);
  margin-bottom: var(--sp-3);
}

.section__title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-3xl));
  font-weight: 700;
  color: var(--clr-dark);
  line-height: 1.2;
  margin-bottom: var(--sp-4);
}

.section--dark  .section__title,
.section--primary .section__title {
  color: var(--clr-white);
}

.section__subtitle {
  font-size: var(--fs-md);
  color: var(--clr-text-light);
  line-height: 1.7;
  max-width: 600px;
}

.section-header--center .section__subtitle {
  margin-inline: auto;
}

/* --------------------------------------------------
   GRIDS REUTILIZABLES
-------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--sp-8);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Grid 2 columnas con texto + imagen (50/50) */
.grid--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-20);
  align-items: center;
}

/* Grid 2 columnas con más peso en texto (60/40) */
.grid--split-wide {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--sp-20);
  align-items: center;
}

/* --------------------------------------------------
   FLEX UTILITIES
-------------------------------------------------- */
.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-col    { display: flex; flex-direction: column; }
.gap-4       { gap: var(--sp-4); }
.gap-6       { gap: var(--sp-6); }
.gap-8       { gap: var(--sp-8); }

/* --------------------------------------------------
   RESPONSIVE DEL LAYOUT
-------------------------------------------------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section          { padding-block: var(--sp-16); }
  .grid--4,
  .grid--3,
  .grid--2          { grid-template-columns: 1fr; }
  .grid--split,
  .grid--split-wide { grid-template-columns: 1fr; gap: var(--sp-10); }
}

@media (max-width: 480px) {
  .section { padding-block: var(--sp-12); }
}