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

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

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

.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--auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--center {
  align-items: center;
}

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

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

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

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

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

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

.flex--align-start {
  align-items: flex-start;
}

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

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

.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

/* ===== SECTIONS ===== */
.section {
  padding-block: var(--space-4xl);
}

.section--sm {
  padding-block: var(--space-2xl);
}

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

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

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

.text-center {
  text-align: center;
}

/* ===== PAGE HEADER ===== */
.page-header {
  padding-block: var(--space-3xl) var(--space-2xl);
  background: linear-gradient(135deg, var(--color-dark-royal-blue), var(--color-deep-violet));
  color: var(--color-white);
  text-align: center;
}

.page-header__title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-sm);
}

.page-header__subtitle {
  font-size: var(--fs-md);
  opacity: 0.9;
  max-width: 600px;
  margin-inline: auto;
}