/* =========================================================
   FlameSync Harmonic Systems — Layout System
   Containers, sections, grids, spacing
   ========================================================= */

/* ---------- Global Containers ---------- */

.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
}

.container-wide {
  width: 100%;
  max-width: var(--max-width-wide);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
}

/* ---------- Sections ---------- */

.section {
  position: relative;
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

.section--tight {
  padding-top: calc(var(--section-padding-y) / 2);
  padding-bottom: calc(var(--section-padding-y) / 2);
}

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

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

/* ---------- Page Header ---------- */

.page-header {
  padding-top: calc(var(--section-padding-y) * 1.25);
  padding-bottom: calc(var(--section-padding-y) * 0.75);
}

.page-header h1 {
  max-width: 20ch;
}

.page-header p {
  font-size: var(--font-size-lg);
  max-width: 60ch;
}

/* ---------- Hero Section ---------- */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero__content {
  position: relative;
  z-index: var(--z-content);
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: var(--z-background);
  background: radial-gradient(
    circle at 30% 30%,
    rgba(122, 111, 240, 0.15),
    transparent 60%
  );
}

/* ---------- Grid System ---------- */

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

/* ---------- Responsive Grids ---------- */

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

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

/* ---------- Vertical Rhythm ---------- */

.stack > * + * {
  margin-top: var(--spacing-md);
}

.stack-lg > * + * {
  margin-top: var(--spacing-lg);
}

/* ---------- Alignment Utilities ---------- */

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

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

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

/* ---------- Split Layout ---------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (max-width: 768px) {
  .split {
    grid-template-columns: 1fr;
  }
}

/* ---------- Content Blocks ---------- */

.content-block {
  max-width: 60ch;
}

.content-block-wide {
  max-width: 80ch;
}

/* ---------- Footer Layout ---------- */

.footer {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-top: 1px solid var(--color-border-subtle);
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   End of layout.css
   ========================================================= */