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

.container--narrow {
  max-width: var(--container-narrow);
}

/* === SECTIONS === */
.section {
  padding-block: var(--sp-16);
}

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

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

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

.section__header {
  text-align: center;
  margin-bottom: var(--sp-12);
}

.section__title {
  margin-bottom: var(--sp-4);
}

.section__subtitle {
  font-size: var(--fs-md);
  color: var(--color-text-light);
  max-width: 600px;
  margin-inline: auto;
}

/* === GRID SYSTEM === */
.grid {
  display: grid;
  gap: var(--sp-6);
}

.grid--2 {
  grid-template-columns: 1fr;
}

.grid--3 {
  grid-template-columns: 1fr;
}

.grid--4 {
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  :root {
    --container-padding: var(--sp-6);
  }

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

@media (min-width: 900px) {
  :root {
    --container-padding: var(--sp-8);
  }

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

@media (min-width: 1200px) {
  .grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

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

/* === FLEXBOX UTILITIES === */
.flex {
  display: flex;
}

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

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

.flex--column {
  flex-direction: column;
}

.flex--gap-sm { gap: var(--sp-2); }
.flex--gap { gap: var(--sp-4); }
.flex--gap-lg { gap: var(--sp-8); }

/* === TEXT ALIGNMENT === */
.text-center { text-align: center; }