/* ==========================================================================
   LAYOUT & GRID SYSTEM — D-ZONE SOFAS (PREMIUM EDITORIAL REDESIGN)
   Alternating Themes: Dark (#0B0B0A), Warm Ivory (#F3F0E9), Soft Stone (#D8D2C8)
   ========================================================================== */

/* ---------- GLOBAL CONTAINERS ---------- */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

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

/* ---------- SECTION RHYTHM & THEMES ---------- */
.section-padding {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  position: relative;
  overflow: hidden;
}

/* Alternating Theme Surfaces */
.theme-dark {
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark-primary);
}

.theme-ivory {
  background-color: var(--color-bg-ivory);
  color: var(--color-text-light-primary);
}

.theme-stone {
  background-color: var(--color-bg-stone);
  color: var(--color-text-light-primary);
}

/* Thin Editorial Rules */
.editorial-rule {
  width: 100%;
  height: 1px;
  border: 0;
  margin: 0;
  padding: 0;
}

.theme-dark .editorial-rule {
  background-color: var(--border-dark-rule);
}

.theme-ivory .editorial-rule,
.theme-stone .editorial-rule {
  background-color: var(--border-ivory-rule);
}

/* ---------- STICKY NAVIGATION HEADER ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-normal),
              border-color var(--transition-normal),
              backdrop-filter var(--transition-normal);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: rgba(11, 11, 10, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  z-index: 10;
  transition: opacity var(--transition-fast);
}

.brand-logo-link:hover {
  opacity: 0.85;
}

.brand-logo-img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

@media (min-width: 1024px) {
  .brand-logo-img {
    height: 32px;
  }
}

/* Desktop Navigation Menu */
.desktop-nav {
  display: none;
}

@media (min-width: 1024px) {
  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 2.25rem;
  }

  .nav-link {
    font-family: var(--font-primary);
    font-size: 0.82rem;
    font-weight: var(--fw-medium);
    color: rgba(246, 244, 240, 0.72);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
  }

  .nav-link:hover,
  .nav-link.active {
    color: #ffffff;
  }

  .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-accent-gold);
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-cta {
  display: none;
}

@media (min-width: 768px) {
  .header-cta {
    display: inline-flex;
  }
}

/* Mobile Hamburger Toggle */
.mobile-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-xs);
  padding: 9px;
  z-index: 10;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.mobile-toggle:hover {
  border-color: rgba(255, 255, 255, 0.4);
}

@media (min-width: 1024px) {
  .mobile-toggle {
    display: none;
  }
}

.toggle-line {
  width: 100%;
  height: 1px;
  background-color: #ffffff;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.mobile-toggle.is-active .toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-toggle.is-active .toggle-line:nth-child(2) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background-color: rgba(11, 11, 10, 0.98);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  z-index: var(--z-drawer);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--header-height) + 1.5rem) var(--container-padding) var(--space-xl);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
}

.mobile-drawer.is-open {
  transform: translateX(0);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-link {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  font-family: var(--font-primary);
  font-size: 1.15rem;
  font-weight: var(--fw-medium);
  color: var(--color-text-dark-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mobile-nav-link .nav-num {
  font-size: 0.72rem;
  color: var(--color-accent-gold);
  letter-spacing: 0.08em;
}

.mobile-nav-link:hover,
.mobile-nav-link:focus {
  color: #ffffff;
  transform: translateX(4px);
}

.mobile-drawer-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ==========================================================================
   01. HERO SECTION (DARK #0B0B0A)
   ========================================================================== */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 660px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-bg-dark);
}

.hero-video-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-video);
  overflow: hidden;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 1;
}

.hero-poster-fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-veil {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-veil);
  background: radial-gradient(
    ellipse at center,
    rgba(11, 11, 10, 0.3) 0%,
    rgba(11, 11, 10, 0.65) 60%,
    rgba(11, 11, 10, 0.95) 100%
  );
  pointer-events: none;
}

.hero-container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: var(--z-content);
}

.hero-content {
  max-width: 680px;
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-md);
}

.hero-kicker {
  font-family: var(--font-primary);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-kicker::after {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background-color: var(--color-accent-gold);
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--fs-hero);
  font-weight: var(--fw-regular);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin: 0;
  text-transform: uppercase;
}

.hero-title .title-italic {
  font-style: italic;
  color: var(--color-accent-gold);
  font-weight: var(--fw-light);
  letter-spacing: 0.01em;
}

.hero-supporting-text {
  font-family: var(--font-primary);
  font-size: var(--fs-lead);
  font-weight: var(--fw-light);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
  max-width: 52ch;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-md);
  margin-top: var(--space-xs);
  flex-wrap: wrap;
}


/* Right-side Vertical Pillar List */
.hero-pillar-list {
  display: none;
}

@media (min-width: 1100px) {
  .hero-pillar-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-end;
    font-family: var(--font-primary);
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    position: relative;
    padding-right: 1.25rem;
  }

  .hero-pillar-line {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(255, 255, 255, 0.2);
  }
}

.hero-pagination {
  position: absolute;
  bottom: var(--space-lg);
  left: var(--container-padding);
  z-index: var(--z-content);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-primary);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.6);
}

.hero-pagination-bar {
  display: inline-block;
  width: 54px;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent-gold) 45%, rgba(255, 255, 255, 0.2) 45%);
}

.hero-scroll-cue {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--container-padding);
  z-index: var(--z-content);
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.5);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

@media (min-width: 768px) {
  .hero-scroll-cue {
    display: flex;
  }
}

.hero-scroll-line {
  display: inline-block;
  width: 1px;
  height: 32px;
  background-color: rgba(255, 255, 255, 0.25);
}

.hero-video-toggle {
  position: absolute;
  bottom: var(--space-lg);
  right: var(--container-padding);
  z-index: var(--z-content);
  background: rgba(11, 11, 10, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.7);
  padding: 0.45rem 1.1rem;
  font-size: 0.72rem;
  font-family: var(--font-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.hero-video-toggle:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.35);
}

/* -------------------------------------------------------------------------
   01-B. MOBILE HERO PRECISION ARCHITECTURE (<= 768px)
   Viewport: 100svh with fallbacks, tailored 58% sofa focal point,
   strengthened dark veil, safe-area padding, and zero clipped controls.
   ------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .hero-section {
    height: 100vh;
    height: 100svh;
    min-height: 100svh;
    min-height: -webkit-fill-available;
    max-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: stretch;
    padding-top: calc(var(--header-height) + env(safe-area-inset-top, 0px));
    padding-bottom: calc(var(--space-md) + env(safe-area-inset-bottom, 16px));
    box-sizing: border-box;
    overflow: hidden;
  }

  .hero-video {
    object-fit: cover;
    object-position: 58% center;
  }

  .hero-poster-fallback {
    background-position: 58% center;
  }

  /* Cinematic mobile gradient: crystal-clear sofa visual in upper-mid frame, deep legibility for text/CTAs */
  .hero-veil {
    background: linear-gradient(
      180deg,
      rgba(11, 11, 10, 0.45) 0%,
      rgba(11, 11, 10, 0.28) 25%,
      rgba(11, 11, 10, 0.52) 52%,
      rgba(11, 11, 10, 0.80) 78%,
      rgba(11, 11, 10, 0.95) 100%
    );
  }

  .hero-container {
    width: 100%;
    max-width: 100%;
    padding-left: clamp(1.25rem, 5.5vw, 2rem);
    padding-right: clamp(1.25rem, 5.5vw, 2rem);
    margin-top: auto;
    margin-bottom: 0;
    box-sizing: border-box;
  }

  .hero-content {
    max-width: 100%;
    gap: 0;
    align-items: flex-start;
  }

  .hero-kicker {
    font-size: 0.72rem;
    letter-spacing: 0.18em;
    margin-bottom: 0.55rem;
  }

  .hero-title {
    font-size: clamp(2.1rem, 7.8vw, 2.75rem);
    line-height: 1.06;
    letter-spacing: -0.02em;
    margin-bottom: 0.65rem;
  }

  .hero-supporting-text {
    font-size: 0.9rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.86);
    margin-bottom: 1.15rem;
    max-width: 38ch;
  }

  .hero-cta-group {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    width: 100%;
    margin-top: 0;
  }

  .hero-cta-group .btn,
  .hero-cta-group .btn-play {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1.4rem;
    font-size: 0.82rem;
    box-sizing: border-box;
  }

  /* Eliminate partially clipped bottom controls and collision on mobile */
  .hero-pagination,
  .hero-video-toggle,
  .hero-scroll-cue {
    display: none !important;
  }
}

@media (min-width: 481px) and (max-width: 768px) {
  .hero-cta-group {
    flex-direction: row;
    gap: var(--space-md);
  }

  .hero-cta-group .btn,
  .hero-cta-group .btn-play {
    width: auto;
  }
}

/* ==========================================================================
   02. BRAND STATEMENT (WARM IVORY #F3F0E9)
   ========================================================================== */
.brand-statement-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 900px) {
  .brand-statement-grid {
    grid-template-columns: 1.25fr 1px 1fr;
    gap: var(--space-2xl);
  }
}

.brand-statement-divider {
  display: none;
}

@media (min-width: 900px) {
  .brand-statement-divider {
    display: block;
    width: 1px;
    height: 100%;
    min-height: 180px;
    background-color: var(--border-ivory-rule);
  }
}

.brand-statement-narrative {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

/* ==========================================================================
   03. D-ZONE SIGNATURE SECTION (DARK #0B0B0A)
   ========================================================================== */
.signature-showcase-wrap {
  position: relative;
  width: 100%;
  margin-top: var(--space-xl);
  background: radial-gradient(ellipse at center, #1a1a18 0%, #0b0b0a 70%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xs);
  padding: var(--space-lg);
  overflow: hidden;
}

.signature-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: var(--radius-xs);
}

/* Interactive Annotation Hotspots */
.annotation-hotspot {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  z-index: 10;
  cursor: pointer;
}

.annotation-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-accent-gold);
  border: 2px solid #0b0b0a;
  box-shadow: 0 0 0 4px rgba(221, 167, 58, 0.35);
  animation: pulseNode 2.6s infinite ease-in-out;
  transition: transform var(--transition-fast);
}

@keyframes pulseNode {
  0% { box-shadow: 0 0 0 2px rgba(221, 167, 58, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(221, 167, 58, 0); }
  100% { box-shadow: 0 0 0 2px rgba(221, 167, 58, 0.4); }
}

.annotation-label {
  background: rgba(11, 11, 10, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-primary);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: #ffffff;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

/* ==========================================================================
   04. INSIDE THE SOFA (DARK ARCHITECTURAL #0B0B0A)
   ========================================================================== */
.inside-sofa-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 992px) {
  .inside-sofa-grid {
    grid-template-columns: 1fr 1.6fr;
    gap: var(--space-2xl);
  }
}

.inside-sofa-visual-wrap {
  position: relative;
  background: #111110;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xs);
  padding: var(--space-md);
  overflow: hidden;
}

.inside-sofa-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.layer-markers-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.layer-marker-card {
  padding: var(--space-md) var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-left: 2px solid var(--color-accent-gold);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xs);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.layer-marker-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.layer-marker-title {
  font-family: var(--font-primary);
  font-size: 0.96rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.04em;
  color: #ffffff;
}

.layer-marker-num {
  font-family: var(--font-primary);
  font-size: 0.72rem;
  color: var(--color-accent-gold);
}

.layer-marker-desc {
  font-size: 0.78rem;
  color: var(--color-text-dark-muted);
}

.layer-disclaimer-badge {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  background: rgba(221, 167, 58, 0.08);
  border: 1px dashed var(--color-accent-gold);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-xs);
  margin-top: var(--space-sm);
}

/* ==========================================================================
   05. PREMIUM MATERIALS (DARK #0B0B0A)
   ========================================================================== */
.materials-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 992px) {
  .materials-split {
    grid-template-columns: 1fr 2fr;
    gap: var(--space-2xl);
  }
}

.materials-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .materials-cards-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.material-card {
  background: #141413;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xs);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.material-card:hover {
  transform: translateY(-4px);
  border-color: rgba(221, 167, 58, 0.35);
}

.material-img-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #1b1b19;
}

.material-img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.material-card:nth-child(1) .material-img-frame img {
  object-position: center 30%;
}

.material-card:nth-child(2) .material-img-frame img {
  object-position: center 40%;
}

.material-card:nth-child(3) .material-img-frame img {
  object-position: center 25%;
}

.material-card:hover .material-img-frame img {
  transform: scale(1.04);
}

.material-card-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex-grow: 1;
}

.material-name {
  font-family: var(--font-primary);
  font-size: 0.92rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #ffffff;
}

.material-note {
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--color-text-dark-secondary);
}

/* Craftsmanship Pillar Cards */
.pillar-card {
  background: #ffffff;
  padding: var(--space-lg);
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-ivory-rule);
  display: flex;
  flex-direction: column;
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: #171716 !important;
  margin-bottom: 0.35rem;
  font-weight: var(--fw-regular);
}

.pillar-desc {
  font-family: var(--font-primary);
  font-size: 0.84rem;
  line-height: 1.55;
  color: #5f5a52 !important;
  margin: 0;
}

/* ==========================================================================
   06. CUSTOMIZATION (WARM IVORY #F3F0E9)
   Ref: "D-ZONE Sofas Crafted for Your Space" & "D-ZONE Custom Sofa Showcase"
   ========================================================================== */
.custom-showcase-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

@media (min-width: 900px) {
  .custom-showcase-top {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.custom-panels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 580px) {
  .custom-panels-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .custom-panels-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
  }
}

.custom-panel-card {
  background: #ffffff;
  border: 1px solid var(--border-ivory-rule);
  border-radius: var(--radius-xs);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  cursor: pointer;
  position: relative;
  text-align: left;
}

.custom-panel-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-editorial);
  border-color: rgba(197, 160, 89, 0.45);
}

.custom-panel-media {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #edeae2;
  position: relative;
}

.custom-panel-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-editorial);
}

.custom-panel-card:hover .custom-panel-media img {
  transform: scale(1.05);
}

.custom-panel-body {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.custom-panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.35rem;
}

.custom-panel-num {
  font-family: var(--font-primary);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-accent-gold);
  font-weight: var(--fw-semibold);
}

.custom-panel-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: var(--fw-regular);
  line-height: 1.15;
  color: var(--color-text-light-primary);
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.custom-panel-desc {
  font-family: var(--font-primary);
  font-size: 0.82rem;
  color: var(--color-text-light-secondary);
  line-height: 1.55;
  margin-bottom: var(--space-sm);
}

.custom-panel-action {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xs);
  border-top: 1px solid var(--border-ivory-rule);
  font-family: var(--font-primary);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  font-weight: var(--fw-medium);
}

.custom-panel-arrow {
  transition: transform var(--transition-fast);
}

.custom-panel-card:hover .custom-panel-arrow {
  transform: translateX(4px);
}

/* Fallback split */
.customization-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 960px) {
  .customization-split {
    grid-template-columns: 1.35fr 1fr;
    gap: var(--space-2xl);
  }
}

.customization-media-wrap {
  width: 100%;
  border-radius: var(--radius-xs);
  overflow: hidden;
  background: #e6e1d7;
  border: 1px solid rgba(18, 18, 17, 0.08);
}

.customization-media-wrap img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.customization-options-list {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-md);
}

.customization-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border-ivory-rule);
  text-decoration: none;
  color: var(--color-text-light-primary);
  transition: padding-left var(--transition-fast), color var(--transition-fast);
}

.customization-row:last-child {
  border-bottom: 1px solid var(--border-ivory-rule);
}

.customization-row:hover {
  padding-left: 8px;
  color: var(--color-accent-gold);
}

.customization-label {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: var(--fw-regular);
  letter-spacing: -0.01em;
}

.customization-desc {
  font-size: 0.8rem;
  color: var(--color-text-light-secondary);
}

.customization-arrow {
  font-size: 1.2rem;
  color: var(--color-accent-gold);
}

/* ==========================================================================
   07. MANUFACTURING (DARK CINEMATIC #0B0B0A)
   ========================================================================== */
.manufacturing-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
}

@media (min-width: 960px) {
  .manufacturing-split {
    grid-template-columns: 1.1fr 1fr;
    gap: var(--space-2xl);
  }
}

.manufacturing-media-wrap {
  width: 100%;
  border-radius: var(--radius-xs);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #141413;
}

.manufacturing-media-wrap img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.manufacturing-steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.manufacturing-step-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.manufacturing-step-item:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.step-num {
  font-family: var(--font-primary);
  font-size: 1.1rem;
  font-weight: var(--fw-light);
  color: var(--color-accent-gold);
}

.step-title {
  font-family: var(--font-primary);
  font-size: 0.92rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 2px;
}

.step-status {
  font-size: 0.72rem;
  color: var(--color-text-dark-muted);
}

/* ==========================================================================
   08. OUR COLLECTION (WARM IVORY #F3F0E9)
   ========================================================================== */
.collection-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

@media (min-width: 860px) {
  .collection-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.collection-card {
  position: relative;
  border-radius: var(--radius-xs);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  display: block;
  text-decoration: none;
  background: #e5e0d7;
  border: 1px solid rgba(18, 18, 17, 0.08);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.collection-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-editorial);
}

.collection-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-editorial);
}

.collection-card:hover img {
  transform: scale(1.04);
}

.collection-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(to top, rgba(11, 11, 10, 0.9) 0%, rgba(11, 11, 10, 0.4) 60%, transparent 100%);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  color: #ffffff;
}

.collection-card-title {
  font-family: var(--font-primary);
  font-size: 0.88rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.collection-card-arrow {
  font-size: 1.1rem;
  color: var(--color-accent-gold);
  transition: transform var(--transition-fast);
}

.collection-card:hover .collection-card-arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   09. SELECTED PROJECTS (WARM IVORY #F3F0E9)
   ========================================================================== */
.projects-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-ivory-rule);
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.projects-tabs {
  display: flex;
  gap: var(--space-md);
}

.project-tab-btn {
  background: none;
  border: none;
  font-family: var(--font-primary);
  font-size: 0.8rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-light-muted);
  cursor: pointer;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

.project-tab-btn.is-active,
.project-tab-btn:hover {
  color: var(--color-text-light-primary);
  border-bottom-color: var(--color-accent-gold);
}

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

@media (min-width: 860px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  display: flex;
  flex-direction: column;
  background: #ffffff;
  border: 1px solid rgba(18, 18, 17, 0.08);
  border-radius: var(--radius-xs);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-4px);
}

.project-media-frame {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #eae6de;
}

.project-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.project-card:hover .project-media-frame img {
  transform: scale(1.03);
}

.project-meta-bar {
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-top: 1px solid rgba(18, 18, 17, 0.06);
}

.project-category-tag {
  font-family: var(--font-primary);
  font-size: 0.74rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-light-primary);
}

.project-status-note {
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--color-text-light-muted);
}

/* ==========================================================================
   10. WHY D-ZONE / DIRECT MANUFACTURER VALUE (WARM IVORY / SOFT STONE)
   Ref: "D-ZONE Sofas Crafted for Your Space"
   ========================================================================== */
.direct-value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 960px) {
  .direct-value-grid {
    grid-template-columns: 1.15fr 1.35fr;
    gap: var(--space-2xl);
    align-items: center;
  }
}

.pathways-list {
  display: flex;
  flex-direction: column;
}

.pathway-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--border-ivory-rule);
  text-decoration: none;
  color: inherit;
  transition: padding-left var(--transition-fast), border-color var(--transition-fast);
}

.pathway-row:last-child {
  border-bottom: 1px solid var(--border-ivory-rule);
}

.pathway-link {
  cursor: pointer;
}

.pathway-link:hover {
  padding-left: 8px;
}

.pathway-link:hover .pathway-title {
  color: var(--color-accent-gold);
}

.pathway-link:hover .pathway-arrow {
  transform: translateX(4px);
  color: var(--color-accent-gold);
}

.pathway-main {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex-grow: 1;
}

@media (min-width: 600px) {
  .pathway-main {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-lg);
  }
}

.pathway-title {
  font-family: var(--font-primary);
  font-size: 0.88rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-light-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.pathway-title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent-gold);
}

@media (min-width: 600px) {
  .pathway-title {
    width: 210px;
  }
}

.pathway-desc {
  font-family: var(--font-primary);
  font-size: 0.84rem;
  color: var(--color-text-light-secondary);
  line-height: 1.55;
  margin: 0;
}

.pathway-arrow {
  font-size: 1.15rem;
  color: var(--color-text-light-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.why-dzone-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 960px) {
  .why-dzone-grid {
    grid-template-columns: 1.4fr 1.1fr 1fr;
    gap: var(--space-xl);
  }
}

.why-arrow-list {
  display: flex;
  flex-direction: column;
}

.why-arrow-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-top: 1px solid var(--border-ivory-rule);
  font-family: var(--font-primary);
  font-size: 0.88rem;
  color: var(--color-text-light-primary);
  text-decoration: none;
}

.why-arrow-item:last-child {
  border-bottom: 1px solid var(--border-ivory-rule);
}

.why-story-box {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background: rgba(18, 18, 17, 0.03);
  padding: var(--space-lg);
  border-radius: var(--radius-xs);
  border: 1px solid rgba(18, 18, 17, 0.08);
}

/* ==========================================================================
   11. FINAL CTA (DARK CINEMATIC #0B0B0A)
   ========================================================================== */
.cta-section {
  position: relative;
  background-color: var(--color-bg-dark);
  padding: var(--space-3xl) 0;
  overflow: hidden;
}

.cta-bg-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.35;
}

.cta-bg-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.cta-card {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  background: rgba(17, 17, 16, 0.92);
  border: 1px solid rgba(221, 167, 58, 0.3);
  border-radius: var(--radius-xs);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-dark);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

@media (max-width: 540px) {
  .cta-card {
    padding: var(--space-xl) var(--space-md);
  }
}

.cta-actions-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
  width: 100%;
}

@media (max-width: 480px) {
  .cta-actions-group {
    flex-direction: column;
  }

  .cta-actions-group .btn {
    width: 100%;
  }
}

/* ==========================================================================
   12. LUXURY FOOTER (DARK #0B0B0A)
   ========================================================================== */
.site-footer {
  background-color: var(--color-bg-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
  position: relative;
  color: var(--color-text-dark-primary);
}

.footer-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: var(--space-lg);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-logo-img {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.footer-nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.footer-nav-link {
  font-family: var(--font-primary);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-dark-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav-link:hover {
  color: #ffffff;
}

.footer-bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.74rem;
  color: var(--color-text-dark-muted);
}

.footer-social-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--color-text-dark-secondary);
  text-decoration: none;
  font-family: var(--font-primary);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

.footer-social-link:hover {
  color: var(--color-accent-gold);
}

.social-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  transition: transform var(--transition-fast);
}

.footer-social-link:hover .social-icon {
  transform: translateY(-1px);
}

/* Contact Layout Grid */
@media (min-width: 900px) {
  .contact-layout-grid {
    grid-template-columns: 1.15fr 1fr !important;
  }
}