/**
 * =============================================================================
 * NEXUS LIVING HUB — 4BHK SERVICE PAGE STYLES
 * services/4bhk-interior-design-bangalore/assets/css/4bhk.css
 *
 * Page accent: var(--color-accent-green) — deep forest green, maturity, permanence
 * Hero: 65vh full-bleed image + glass-morphism content card (bottom-left)
 * Sections: bento zone map, accordion tiers, editorial philosophy, green CTA
 *
 * Structurally distinct from 2BHK (gradient hero, card grid, side-by-side tiers,
 * material cards, terracotta CTA) and 3BHK (split hero, tabs, strips, stat blocks,
 * dark charcoal CTA).
 * =============================================================================
 */

/* =============================================================================
   00. NAV — Force Solid
   ============================================================================= */

.nav--force-solid {
  background-color: var(--color-bg-primary) !important;
  box-shadow: var(--shadow-nav) !important;
}

.nav--force-solid .site-nav__logo-text,
.nav--force-solid .site-nav__link {
  color: var(--color-accent-dark) !important;
}

.nav--force-solid .site-nav__hamburger span {
  background-color: var(--color-accent-dark) !important;
}

.nav--force-solid .site-nav__logo-mark {
  color: var(--color-accent-dark);
}

/* Override: hero is dark — nav starts transparent on this page */
.bhk4-page .site-nav:not(.nav-scrolled) {
  background-color: transparent !important;
  box-shadow: none !important;
}

.bhk4-page .site-nav:not(.nav-scrolled) .site-nav__logo-text,
.bhk4-page .site-nav:not(.nav-scrolled) .site-nav__link {
  color: var(--color-text-inverse) !important;
}

.bhk4-page .site-nav:not(.nav-scrolled) .site-nav__hamburger span {
  background-color: var(--color-text-inverse) !important;
}

/* Once scrolled past hero, revert to solid */
.bhk4-page .nav-scrolled {
  background-color: var(--color-bg-primary) !important;
  box-shadow: var(--shadow-nav) !important;
}

.bhk4-page .nav-scrolled .site-nav__logo-text,
.bhk4-page .nav-scrolled .site-nav__link {
  color: var(--color-accent-dark) !important;
}

.bhk4-page .nav-scrolled .site-nav__hamburger span {
  background-color: var(--color-accent-dark) !important;
}


/* =============================================================================
   01. HERO — 65vh full-bleed, glass-morphism content card bottom-left
   ============================================================================= */

.bhk4-hero {
  position: relative;
  min-height: 65vh;
  background-color: var(--color-accent-dark);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

/* Grain overlay */
.bhk4-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='280' height='280'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.68' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='280' height='280' filter='url(%23g)' opacity='0.05'/%3E%3C/svg%3E");
  z-index: 1;
  pointer-events: none;
}

/* Dark gradient — bottom and left heavy to frame the card */
.bhk4-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(28, 28, 28, 0.75) 0%, transparent 60%),
    linear-gradient(to right, rgba(28, 28, 28, 0.45) 0%, transparent 55%);
  z-index: 2;
}

/* Placeholder icon centred in background */
.bhk4-hero__bg-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  pointer-events: none;
}

.bhk4-hero__bg-icon i {
  font-size: 14rem;
  color: var(--color-accent-gold);
  opacity: 0.07;
}

/* Accent stripe at top — forest green */
.bhk4-hero__accent-stripe {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-accent-green);
  z-index: 5;
}

/* Glass-morphism content card */
.bhk4-hero__card {
  position: relative;
  z-index: 3;
  margin: 0 var(--space-sm) var(--space-xl);
  padding: var(--space-xl);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(245, 240, 232, 0.18);
  border-radius: var(--radius-lg);
  max-width: 100%;
}

@media (min-width: 768px) {
  .bhk4-hero__card {
    max-width: 600px;
    margin: 0 var(--space-lg) var(--space-2xl);
  }
}

@media (min-width: 1280px) {
  .bhk4-hero__card {
    max-width: 580px;
    margin: 0 var(--space-xl) var(--space-2xl);
    padding: var(--space-xl) var(--space-2xl);
  }
}

/* Breadcrumb inside card */
.bhk4-hero__card .breadcrumb a,
.bhk4-hero__card .breadcrumb__separator,
.bhk4-hero__card .breadcrumb__current {
  color: rgba(245, 240, 232, 0.6);
}

.bhk4-hero__card .breadcrumb a:hover {
  color: var(--color-accent-gold);
}

/* H1 */
.bhk4-hero__title {
  font-family: var(--font-display);
  font-size: var(--h1-size);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-inverse);
  margin: var(--space-sm) 0 var(--space-md);
}

.bhk4-hero__title em {
  font-style: italic;
  color: var(--color-accent-green);
  /* bright-ish green that reads on dark glass */
  filter: brightness(1.5);
}

/* Sub-text */
.bhk4-hero__sub {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: rgba(245, 240, 232, 0.82);
  margin: 0 0 var(--space-lg);
}

/* CTA row */
.bhk4-hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}


/* =============================================================================
   02. ZONE MAP — Bento / asymmetric mosaic grid
   Desktop: varying span sizes; Mobile: stacked blocks
   ============================================================================= */

.zone-map-section {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-card);
}

.zone-map-section .section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.zone-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .zone-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .zone-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: auto auto auto;
  }
}

/* Zone block base */
.zone-block {
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--color-accent-green);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.zone-block:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* Large blocks: span 2 cols on desktop */
@media (min-width: 1024px) {
  .zone-block--large {
    grid-column: span 2;
  }

  /* Arrange: row 1 = living (2col) + kitchen (2col)
              row 2 = master (2col) + bedroom2 (1col) + bedroom3 (1col)
              row 3 = bedroom4 (2col) + pooja (1col) + throughout (1col) */

  .zone-block--living    { grid-column: span 2; grid-row: 1; }
  .zone-block--kitchen   { grid-column: span 2; grid-row: 1; }
  .zone-block--master    { grid-column: span 2; grid-row: 2; }
  .zone-block--bed2      { grid-column: span 1; grid-row: 2; }
  .zone-block--bed3      { grid-column: span 1; grid-row: 2; }
  .zone-block--bed4      { grid-column: span 2; grid-row: 3; }
  .zone-block--utility   { grid-column: span 1; grid-row: 3; }
  .zone-block--finish    { grid-column: span 1; grid-row: 3; }
}

.zone-block__icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(45, 74, 62, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.zone-block__icon-wrap i {
  font-size: 1.125rem;
  color: var(--color-accent-green);
}

.zone-block__label {
  font-family: var(--font-accent);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--tracking-cta);
  text-transform: uppercase;
  color: var(--color-accent-green);
}

.zone-block__title {
  font-family: var(--font-heading);
  font-size: var(--h4-size);
  font-weight: 600;
  color: var(--color-accent-dark);
  margin: 0;
  line-height: 1.25;
}

.zone-block__desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Large block gets a horizontal sub-layout on desktop */
@media (min-width: 768px) {
  .zone-block--large {
    display: grid;
    grid-template-columns: 44px 1fr;
    grid-template-rows: auto auto auto auto;
    column-gap: var(--space-md);
    row-gap: 4px;
  }

  .zone-block--large .zone-block__icon-wrap {
    grid-column: 1;
    grid-row: 1 / 5;
    align-self: start;
    margin-top: 3px;
  }

  .zone-block--large .zone-block__label  { grid-column: 2; }
  .zone-block--large .zone-block__title  { grid-column: 2; }
  .zone-block--large .zone-block__desc   { grid-column: 2; }
}


/* =============================================================================
   03. PACKAGE ACCORDION — Expandable vertical panels
   NOT side-by-side cards (2BHK) or horizontal strips (3BHK)
   ============================================================================= */

.tier-accordion-section {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-primary);
}

.tier-accordion-section .section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.tier-accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  max-width: 920px;
  margin: 0 auto;
}

/* Panel */
.tier-panel {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
  background: var(--color-bg-card);
}

.tier-panel.open {
  border-color: var(--color-accent-green);
  box-shadow: var(--shadow-hover);
}

/* Panel header (click target) */
.tier-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  gap: var(--space-md);
  transition: background var(--transition-fast);
}

.tier-panel__header:hover {
  background: rgba(45, 74, 62, 0.04);
}

.tier-panel.open .tier-panel__header {
  background: rgba(45, 74, 62, 0.06);
  border-bottom: 1px solid var(--color-border);
}

.tier-panel__header-left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  flex: 1;
  min-width: 0;
}

.tier-panel__badge {
  font-family: var(--font-accent);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: var(--tracking-cta);
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  flex-shrink: 0;
}

.tier-panel__badge--essential {
  background: var(--color-accent-green);
  color: var(--color-text-inverse);
}

.tier-panel__badge--premium {
  background: var(--color-accent-gold);
  color: var(--color-text-inverse);
}

.tier-panel__badge--elite {
  background: var(--color-accent-dark);
  color: var(--color-ivory);
}

.tier-panel__most-chosen {
  font-family: var(--font-accent);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  border: 1px solid var(--color-accent-gold);
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  flex-shrink: 0;
}

.tier-panel__name {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tier-panel__oneliner {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: italic;
  flex: 1;
  min-width: 0;
  display: none;
}

@media (min-width: 640px) {
  .tier-panel__oneliner {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

/* Chevron icon */
.tier-panel__chevron {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base);
}

.tier-panel.open .tier-panel__chevron {
  transform: rotate(180deg);
  background: var(--color-accent-green);
  color: var(--color-text-inverse);
  border-color: var(--color-accent-green);
}

/* Panel body */
.tier-panel__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s ease;
}

.tier-panel.open .tier-panel__body {
  max-height: 600px;
}

.tier-panel__body-inner {
  padding: var(--space-lg) var(--space-xl);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .tier-panel__body-inner {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

.tier-panel__desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin: 0;
}

.tier-panel__features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tier-panel__features li {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.5;
}

.tier-panel__features li::before {
  content: '✓';
  font-family: var(--font-accent);
  font-weight: 700;
  font-size: 0.8125rem;
  color: var(--color-accent-green);
  flex-shrink: 0;
  margin-top: 1px;
}

.tier-panel__body-inner .btn {
  margin-top: var(--space-sm);
}


/* =============================================================================
   04. EDITORIAL PHILOSOPHY — Pull-quote callout blocks
   NOT material cards (2BHK) or stat blocks (3BHK)
   ============================================================================= */

.philosophy-section {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-card);
}

.philosophy-section .section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.philosophy-block {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.philosophy-block:last-child {
  border-bottom: none;
}

.philosophy-block__title {
  font-family: var(--font-heading);
  font-size: var(--h3-size);
  font-weight: 600;
  color: var(--color-accent-dark);
  margin: 0 0 var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.philosophy-block__title::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 1.2em;
  background: var(--color-accent-green);
  border-radius: 3px;
  flex-shrink: 0;
}

.philosophy-block__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .philosophy-block__layout {
    grid-template-columns: 1fr 340px;
    align-items: start;
    gap: var(--space-xl);
  }
}

.philosophy-block__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.philosophy-block__body p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.85;
  margin: 0;
}

/* Pull-quote callout */
.philosophy-pullquote {
  background: var(--color-bg-primary);
  border-left: 4px solid var(--color-accent-green);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-lg);
  position: relative;
  align-self: start;
}

.philosophy-pullquote::before {
  content: '\201C';
  font-family: var(--font-heading);
  font-size: 4rem;
  color: var(--color-accent-green);
  opacity: 0.3;
  line-height: 1;
  position: absolute;
  top: var(--space-xs);
  left: var(--space-sm);
  pointer-events: none;
}

.philosophy-pullquote__text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 500;
  color: var(--color-accent-dark);
  line-height: 1.5;
  margin: 0;
  padding-top: var(--space-xs);
}


/* =============================================================================
   05. FEATURED PROJECTS — Standard card grid (green link accent)
   ============================================================================= */

.projects4-section {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-primary);
}

.projects4-section .section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.projects4-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .projects4-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .projects4-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project4-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

.project4-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.project4-card__img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-color: var(--color-linen);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}

.project4-card__img i {
  font-size: 2.5rem;
  color: var(--color-accent-green);
  opacity: 0.3;
}

.project4-card__img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(44, 31, 20, 0.15) 0%, transparent 50%);
}

.project4-card__body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex-grow: 1;
}

.project4-card__name {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin: 0;
  line-height: 1.35;
}

.project4-card__location {
  font-family: var(--font-accent);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 5px;
}

.project4-card__link {
  font-family: var(--font-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: var(--tracking-small);
  color: var(--color-accent-green);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: auto;
  padding-top: var(--space-xs);
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.project4-card__link:hover {
  gap: 9px;
  color: var(--color-accent-dark);
}

.projects4-cta-row {
  text-align: center;
  margin-top: var(--space-xl);
}


/* =============================================================================
   06. FAQ — Accordion, green accent
   ============================================================================= */

.faq-section-4bhk {
  padding: var(--space-2xl) 0;
  background: var(--color-bg-card);
}

.faq-section-4bhk .section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.faq-section-4bhk .faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.faq-section-4bhk .faq-item {
  background: var(--color-bg-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.faq-section-4bhk .faq-item.open {
  box-shadow: var(--shadow-card);
  border-color: var(--color-accent-green);
}

.faq-section-4bhk .faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  text-align: left;
  gap: var(--space-md);
  transition: background var(--transition-fast);
}

.faq-section-4bhk .faq-question:hover {
  background: rgba(45, 74, 62, 0.04);
}

.faq-section-4bhk .faq-question__text {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  line-height: 1.4;
}

.faq-section-4bhk .faq-question__icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: rgba(45, 74, 62, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
  color: var(--color-accent-green);
  font-weight: 400;
  line-height: 1;
  transition: transform var(--transition-base), background var(--transition-base);
}

.faq-section-4bhk .faq-item.open .faq-question__icon {
  transform: rotate(45deg);
  background: var(--color-accent-green);
  color: var(--color-text-inverse);
}

.faq-section-4bhk .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-section-4bhk .faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-section-4bhk .faq-answer__inner {
  padding: 0 var(--space-lg) var(--space-md);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}


/* =============================================================================
   07. CTA SECTION — Forest Green background (NOT terracotta, NOT dark charcoal)
   ============================================================================= */

.bhk4-cta-section {
  padding: var(--space-3xl) 0;
  background: var(--color-accent-green);
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Subtle botanical leaf pattern */
.bhk4-cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(
      ellipse at 20% 50%,
      rgba(255, 255, 255, 0.04) 0%,
      transparent 60%
    ),
    radial-gradient(
      ellipse at 80% 50%,
      rgba(255, 255, 255, 0.04) 0%,
      transparent 60%
    );
  pointer-events: none;
}

.bhk4-cta-section .container {
  position: relative;
  z-index: 1;
}

.bhk4-cta-section__inner {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.bhk4-cta-section__eyebrow {
  font-family: var(--font-accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--tracking-cta);
  text-transform: uppercase;
  color: rgba(245, 240, 232, 0.65);
}

.bhk4-cta-section__title {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  font-weight: 700;
  color: var(--color-text-inverse);
  margin: 0;
  line-height: 1.2;
}

.bhk4-cta-section__sub {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  color: rgba(245, 240, 232, 0.88);
  margin: 0;
  line-height: 1.75;
}

.bhk4-cta-section__btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  align-items: center;
  margin-top: var(--space-xs);
}

/* Primary on green: white bg, green text */
.bhk4-cta-section .btn-primary {
  background: var(--color-text-inverse);
  color: var(--color-accent-green);
  border-color: transparent;
}

.bhk4-cta-section .btn-primary:hover {
  background: var(--color-ivory);
  color: var(--color-accent-dark);
}

/* Ghost on green: ivory border */
.bhk4-cta-section .btn-ghost {
  color: var(--color-text-inverse);
  border-color: rgba(245, 240, 232, 0.55);
}

.bhk4-cta-section .btn-ghost:hover {
  background: rgba(245, 240, 232, 0.12);
  border-color: var(--color-text-inverse);
}


/* =============================================================================
   08. SECTION HEADER — Green accent throughout
   ============================================================================= */

.bhk4-page .section-header h2 {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  font-weight: 700;
  color: var(--color-accent-dark);
  margin: var(--space-xs) 0;
}

.bhk4-page .section-header p {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.75;
}

.bhk4-page .section-header .overline {
  font-family: var(--font-accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: var(--tracking-cta);
  text-transform: uppercase;
  color: var(--color-accent-green);
  display: block;
}

.bhk4-page .section-header .heading-accent {
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent-green);
  margin: var(--space-xs) auto var(--space-sm);
  border-radius: 2px;
}


/* =============================================================================
   09. RESPONSIVE VERTICAL RHYTHM
   ============================================================================= */

@media (min-width: 1280px) {
  .zone-map-section,
  .tier-accordion-section,
  .philosophy-section,
  .projects4-section,
  .faq-section-4bhk {
    padding: var(--space-3xl) 0;
  }
}


/* =============================================================================
   10. REDUCED MOTION
   ============================================================================= */

@media (prefers-reduced-motion: reduce) {
  .bhk4-hero::before,
  .bhk4-hero::after {
    animation: none;
  }

  .zone-block,
  .tier-panel,
  .project4-card {
    transition: none;
  }

  .tier-panel__body {
    transition: none;
  }

  .tier-panel__chevron {
    transition: none;
  }
}