/* ===============================================================
   LAYOUT — Container, Sections, Grid Utilities, Responsive
   =============================================================== */

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.container--narrow {
  max-width: 760px;
}

/* ---- Sections ---- */
section {
  position: relative;
  padding: var(--section-py) 0;
}

/* ---- Section Header ---- */
.section-header {
  margin-bottom: 64px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
}

.section-title {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.1;
}

.section-description {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.75;
}

/* ---- Grid Utilities ---- */
.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---- 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; }

/* ---- Divider ---- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
}

/* ---- Visually Hidden (a11y) ---- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

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

@media (max-width: 768px) {
  :root {
    --section-py: 88px;
    --container-px: 20px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .section-header {
    margin-bottom: 44px;
  }
}

@media (max-width: 480px) {
  :root {
    --section-py: 72px;
    --container-px: 16px;
  }
}