/* ============================================
   PURAVANKARA — LAYOUT
   Container, grid helpers, section wrappers
   ============================================ */

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

/* ── Section Wrapper ── */
.section {
  padding-block: var(--section-padding);
  position: relative;
}

/* ── Section Background Alternations ── */
.section--white    { background-color: var(--color-white); }
.section--offwhite { background-color: var(--color-off-white); }
.section--ivory    { background-color: var(--color-ivory); }
.section--cream    { background-color: var(--color-cream); }
.section--gold-pale{ background-color: var(--color-gold-pale); }
.section--dark     { background-color: var(--color-footer-bg); }

/* ── Section Gold Top Border ── */
.section--gold-border-top {
  border-top: 1px solid var(--color-gold-rule);
}
.section--gold-border-both {
  border-top: 1px solid var(--color-gold-rule);
  border-bottom: 1px solid var(--color-gold-rule);
}
.section--compact {
  padding-block: clamp(2rem, 4vw, 3.5rem);
}

/* ── Section Header Block ── */
.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}
.section-header--left { text-align: left; }

.section-subheading {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.1vw, 1.1rem);
  color: var(--color-stone);
  margin-top: 0.75rem;
  max-width: 560px;
  text-align: center;
  margin-inline: auto;
  line-height: 1.6;
}
.section-header--left .section-subheading {
  text-align: left;
  margin-inline: 0;
}
.section-header--center .section-subheading { margin-inline: auto; }

/* ── Grid Helpers ── */
.grid {
  display: grid;
  gap: 24px;
}
.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-fill, minmax(340px, 1fr)); }

/* ── Flex Helpers ── */
.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-wrap  { flex-wrap: wrap; }
.gap-sm     { gap: 0.75rem; }
.gap-md     { gap: 1.25rem; }
.gap-lg     { gap: 2rem; }

/* ── Hidden anchor targets (offset for sticky nav) ── */
.section-anchor {
  position: relative;
  top: calc(-1 * var(--nav-height) - 16px);
  visibility: hidden;
  pointer-events: none;
}

/* ── Split Layout ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.split--60-40 { grid-template-columns: 3fr 2fr; }
.split--40-60 { grid-template-columns: 2fr 3fr; }

/* ── WhatsApp FAB ── */
.whatsapp-fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-white);
  border: 1.5px solid var(--color-gold-border);
  border-radius: 50px;
  padding: 0.6rem 1.1rem 0.6rem 0.8rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.10);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  cursor: pointer;
}
.whatsapp-fab:hover {
  box-shadow: 0 8px 32px var(--color-card-shadow);
  transform: translateY(-2px);
}
.whatsapp-fab svg { width: 22px; height: 22px; fill: #25D366; }
.whatsapp-fab span {
  font-family: var(--font-label);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-charcoal);
  text-transform: uppercase;
}

@media (max-width: 767px) {
  .split { grid-template-columns: 1fr; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .whatsapp-fab span { display: none; }
  .whatsapp-fab { padding: 0.7rem; border-radius: 50%; bottom: 1.5rem; right: 1.5rem; }
}