/* ==========================================================================
   Layout — Container, Grid, Flexbox Utilities, Breakpoints
   ========================================================================== */

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

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

@media (max-width: 768px) {
  .container { padding-inline: var(--space-lg); }
}

@media (max-width: 480px) {
  .container { padding-inline: var(--space-md); }
}

/* ---------- Section Spacing ---------- */
.section          { padding-block: var(--space-3xl); }
.section--sm      { padding-block: var(--space-2xl); }
.section--lg      { padding-block: calc(var(--space-3xl) * 1.5); }
.section--dark    { background-color: var(--color-bg-secondary); }
.section--surface { background-color: var(--color-bg-surface); }

/* ---------- Grid System ---------- */
.grid {
  display: grid;
  gap: var(--space-xl);
}

/* Auto-responsive card grids */
.grid--cards {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

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

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

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}

/* ---------- Flexbox Utilities ---------- */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.flex-wrap    { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.items-end    { align-items: flex-end; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }
.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); }

/* ---------- Spacing Utilities ---------- */
.mt-sm  { margin-top: var(--space-sm); }
.mt-md  { margin-top: var(--space-md); }
.mt-lg  { margin-top: var(--space-lg); }
.mt-xl  { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mt-3xl { margin-top: var(--space-3xl); }

.mb-sm  { margin-bottom: var(--space-sm); }
.mb-md  { margin-bottom: var(--space-md); }
.mb-lg  { margin-bottom: var(--space-lg); }
.mb-xl  { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

/* ---------- Text Alignment ---------- */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

/* ---------- Display Utilities ---------- */
.hidden { display: none !important; }

@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ---------- Section Header (reusable) ---------- */
.section-header,
.section__header {
  margin-bottom: var(--space-2xl);
  text-align: center;
}

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

.section-header--center p,
.section__header p {
  margin-inline: auto;
}

.section-label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section-title,
.section__title {
  font-size: var(--text-4xl);
  font-weight: var(--font-extrabold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}

.section-subtitle,
.section__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 60ch;
  margin-inline: auto;
}

.section__cta {
  text-align: center;
  margin-top: var(--space-2xl);
}

@media (max-width: 768px) {
  .section-title,
  .section__title { font-size: var(--text-3xl); }
}