/* =====================================================================
   Asettelu: säiliöt, osiot, ruudukot
   ===================================================================== */

.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: calc(var(--container-narrow) + 2 * var(--gutter));
}

.section {
  padding-block: var(--space-9);
}

.section--paper { background: var(--paper); }
.section--navy {
  background: var(--navy-900);
  color: var(--navy-100);
}
.section--navy h2,
.section--navy h3 { color: var(--white); }

.section-head {
  max-width: 720px;
  margin-bottom: var(--space-7);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.section-head p {
  margin-top: var(--space-4);
  font-size: var(--text-lg);
  color: var(--muted);
}

.section--navy .section-head p { color: var(--navy-100); opacity: 0.85; }

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: center;
}

@media (max-width: 960px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}