/* ==========================================================================
   NANDAN'S FURNITURE (BHUBANESWAR & CUTTACK) - LIVING SPACES DESIGN SYSTEM
   Exact 2-Tier Centered Header & Category Navbar (assets/css/styles.css)
   ========================================================================== */

:root {
  /* Tier 1: Primary Brand Colors */
  --color-primary: #1C1816;        /* Obsidian Walnut */
  --color-primary-hover: #352C27;  /* Deep Teak */

  /* Tier 2: Secondary Accent Colors */
  --color-secondary: #9E7B54;      /* Architectural Muted Brass */
  --color-secondary-hover: #826340;/* Deep Brass */

  /* Tier 3: Neutrals */
  --color-bg-light: #FAF8F5;       /* Warm Parchment - Zero Pure White */
  --color-bg-surface: #F2EFE8;     /* Warm Linen Surface */
  --color-bg-dark: #181513;        /* Dark Walnut Container */
  --color-bg-dark-surface: #26211E;/* Dark Inner Container */
  
  --color-text-dark: #181513;      /* Dark Text */
  --color-text-secondary: #5A534C; /* Body Text */
  --color-text-light: #FAF8F5;     /* Light Text */
  --color-text-light-muted: #B8B0A6;

  --color-border-light: #E0DAD0;   /* Clean Border */
  --color-border-dark: #38302B;    /* Dark Solid Border */

  /* Typography */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 5.5rem;

  --site-max-width: 1320px;
}

/* Reset & Strict Architectural Rules */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Strict zero corner radiuses */
  box-shadow: none !important; /* Strict zero drop shadows */
  background-image: none !important; /* Strict zero gradients */
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg-light);
  color: var(--color-text-dark);
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  font-weight: 400;
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-text-dark);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

ul, ol {
  list-style: none;
}

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

.section-spacing {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-light);
}

.section-spacing-dark {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border-dark);
}

.section-header {
  margin-bottom: var(--space-xl);
}

.section-header.text-center {
  text-align: center;
}

.section-subtitle {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-secondary);
  margin-bottom: var(--space-xs);
  display: block;
}

.section-header-dark .section-subtitle {
  color: var(--color-secondary);
}

.section-header-dark h2, 
.section-header-dark p {
  color: var(--color-text-light);
}

/* STRICT GRIDS - 1, 2, 4, or 5 Columns */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  align-items: start;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}

.grid-2-asymmetric {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-xl);
  align-items: center;
}

/* TOP UTILITY ANNOUNCEMENT BAR */
.top-bar {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light-muted);
  font-size: 0.85rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border-dark);
}

.top-bar-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-contact {
  display: flex;
  gap: 1.5rem;
}

.top-bar-link {
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-bar-link:hover {
  color: var(--color-secondary);
}

/* LIVING SPACES 2-TIER HEADER SYSTEM */

/* Row 1: Centered Logo & Utility Icons */
.site-header-main {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border-light);
  padding: 1.25rem 0;
}

.header-main-flex {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.header-left-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-dark);
}

.brand-logo-centered {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.brand-text-large {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-dark);
  line-height: 1;
}

.brand-subtag-centered {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-secondary);
  margin-top: 4px;
}

.header-right-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.5rem;
}

.header-action-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-dark);
}

.header-action-item:hover {
  color: var(--color-secondary);
}

/* Row 2: Secondary Room Category Navigation Bar (Sticky) */
.site-category-nav {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.5rem 0;
}

.category-nav-flex {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.2rem;
}

.category-nav-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dark);
  padding: 0.6rem 0;
  position: relative;
}

.category-nav-link:hover,
.category-nav-link.active {
  color: var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border-light);
  padding: 0.5rem;
  cursor: pointer;
  color: var(--color-text-dark);
}

/* Living Spaces Value Props Bar (4 Columns) */
.value-props-strip {
  background-color: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding: 1rem 0;
}

.value-props-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
}

.value-prop-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dark);
}

/* LIVING SPACES HERO BANNER */
.ls-hero-banner {
  position: relative;
  width: 100%;
  height: 580px;
  overflow: hidden;
  background-color: var(--color-bg-dark);
  border-bottom: 1px solid var(--color-border-light);
}

.ls-hero-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.88;
}

.ls-hero-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background-color: rgba(24, 21, 19, 0.85);
  border: 1px solid var(--color-secondary);
  padding: var(--space-xl);
  max-width: 650px;
  width: 90%;
  color: var(--color-text-light);
}

.ls-hero-overlay .badge {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-secondary);
  display: block;
  margin-bottom: 0.5rem;
}

.ls-hero-overlay h2 {
  color: var(--color-text-light);
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

/* LIVING SPACES 5-TILE QUICK CATEGORY STRIP */
.ls-category-strip {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
  background-color: var(--color-bg-light);
}

.category-tile-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  padding: 1rem;
}

.category-tile-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  margin-bottom: 0.75rem;
  border: 1px solid var(--color-border-light);
}

.category-tile-title {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dark);
}

/* LIVING SPACES PROMO BANNER SPLIT (2 COLUMNS) */
.promo-banner-card {
  position: relative;
  height: 440px;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  background-color: var(--color-bg-dark);
}

.promo-banner-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.promo-banner-content {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
  background-color: rgba(24, 21, 19, 0.88);
  border: 1px solid var(--color-secondary);
  padding: var(--space-md);
  color: var(--color-text-light);
}

.promo-banner-content h3 {
  color: var(--color-text-light);
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.1rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
  border-color: var(--color-secondary);
}

.btn-secondary:hover {
  background-color: var(--color-secondary-hover);
  border-color: var(--color-secondary-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text-dark);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-text-light);
  border-color: var(--color-border-dark);
}

.btn-outline-dark:hover {
  background-color: var(--color-text-light);
  color: var(--color-text-dark);
}

.btn-full {
  width: 100%;
}

/* Form Fields - Stacked Layout Standard */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dark);
  margin-bottom: 0.5rem;
}

.form-label-dark {
  color: var(--color-text-light);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 1rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text-dark);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border-light);
  outline: none;
  appearance: none;
}

.form-input-dark,
.form-select-dark,
.form-textarea-dark {
  background-color: var(--color-bg-dark-surface);
  color: var(--color-text-light);
  border: 1px solid var(--color-border-dark);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-secondary);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Architectural Lists */
.architectural-list {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

.architectural-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 1.05rem;
  color: var(--color-text-secondary);
}

.architectural-list-dark li {
  color: var(--color-text-light-muted);
}

.list-index {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1.2;
}

.list-square {
  width: 8px;
  height: 8px;
  background-color: var(--color-secondary);
  margin-top: 8px;
  flex-shrink: 0;
}

/* Cards */
.card-architectural {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
}

.card-architectural-dark {
  background-color: var(--color-bg-dark-surface);
  border: 1px solid var(--color-border-dark);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  color: var(--color-text-light);
}

/* Subpage Banner */
.page-hero-banner {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-dark);
}

.page-hero-banner h1 {
  color: var(--color-text-light);
  margin-bottom: var(--space-xs);
}

.page-hero-banner p {
  color: var(--color-text-light-muted);
  font-size: 1.15rem;
  max-width: 700px;
}

/* Living Spaces Product Cards */
.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: var(--space-xl);
  justify-content: center;
}

.filter-btn {
  padding: 0.65rem 1.4rem;
  background-color: transparent;
  border: 1px solid var(--color-border-light);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  color: var(--color-text-dark);
}

.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.catalog-card {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
}

.catalog-card-image {
  position: relative;
  width: 100%;
  height: 260px;
  overflow: hidden;
  background-color: var(--color-bg-surface);
}

.catalog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.catalog-card-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  margin-bottom: 0.25rem;
}

.catalog-card-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 0.4rem;
  color: var(--color-text-dark);
}

.catalog-card-desc {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.catalog-card-footer {
  margin-top: auto;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Skeleton Loaders */
.skeleton {
  background-color: var(--color-border-light);
  position: relative;
  overflow: hidden;
}

.skeleton-text {
  height: 1rem;
  margin-bottom: 0.5rem;
  background-color: #E6E0D6;
}

.skeleton-title {
  height: 1.5rem;
  width: 70%;
  margin-bottom: 0.75rem;
  background-color: #DDD6C8;
}

.skeleton-img {
  width: 100%;
  height: 260px;
  background-color: #E2DCD0;
}

/* Interactive Studio Configurator */
.demo-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  padding: var(--space-xl);
}

.demo-preview-box {
  border: 1px solid var(--color-border-light);
  background-color: var(--color-bg-surface);
  position: relative;
  display: flex;
  flex-direction: column;
}

.demo-main-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.demo-specs-bar {
  padding: var(--space-md);
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  border-top: 1px solid var(--color-border-dark);
}

.spec-item-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
}

.spec-item-value {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--color-text-light);
}

.wood-selector-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: var(--space-md);
}

.wood-option-btn {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  padding: 0.75rem 0.5rem;
  text-align: center;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-dark);
}

.wood-option-btn.active {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  border-color: var(--color-primary);
}

.calc-price-output {
  padding: var(--space-md);
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
}

.calc-price-amount {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* FAQ ACCORDION COMPONENT */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  padding: 1.25rem var(--space-md);
}

.faq-question {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  margin-top: 0.75rem;
  color: var(--color-text-secondary);
  font-size: 0.98rem;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

/* Reviews & Verified Projects */
.gmb-badge-strip {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1.4rem;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-xl);
  font-size: 0.9rem;
  font-weight: 700;
}

.verified-projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.project-case-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
}

.project-case-header {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
  background-color: var(--color-bg-light);
}

.project-case-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  margin-bottom: 0.25rem;
}

.project-case-meta {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
}

.project-case-body {
  padding: var(--space-md);
  flex-grow: 1;
}

.project-specs-list {
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
}

.project-spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 0.25rem 0;
}

.project-spec-key {
  color: var(--color-text-secondary);
  font-weight: 600;
}

.project-spec-val {
  color: var(--color-text-dark);
  font-weight: 700;
}

/* Contact Info & Forms */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.contact-info-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  padding: var(--space-xl);
}

.contact-detail-group {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
}

.contact-detail-group:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contact-detail-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  margin-bottom: 0.4rem;
}

.contact-detail-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

/* WhatsApp Float Button */
.whatsapp-float-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 990;
  background-color: #128C7E;
  color: #FFFFFF;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid #075E54;
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
}

.whatsapp-float-btn:hover {
  background-color: #075E54;
}

/* Footer & Modals */
.site-footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light-muted);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-col-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--color-text-light-muted);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-links button {
  background: none;
  border: none;
  color: var(--color-text-light-muted);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-sans);
}

.footer-legal-links button:hover {
  color: var(--color-secondary);
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(24, 21, 19, 0.88);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--space-xl);
  position: relative;
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-light);
  padding: 0.5rem 0.8rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--color-text-dark);
}

.modal-body {
  margin-top: var(--space-md);
}

.modal-body h3 {
  margin-top: var(--space-md);
}

/* Responsiveness */
@media (max-width: 1024px) {
  .header-main-flex {
    grid-template-columns: 1fr;
    gap: 1rem;
    text-align: center;
  }
  .header-right-actions {
    justify-content: center;
  }
  .category-nav-flex {
    flex-wrap: wrap;
    gap: 1rem;
  }
  .grid-4, .grid-5, .catalog-grid, .value-props-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .demo-container {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-2-asymmetric,
  .verified-projects-grid,
  .contact-grid,
  .value-props-grid,
  .grid-5 {
    grid-template-columns: 1fr;
  }
  
  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .category-nav-flex {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .category-nav-flex.active {
    display: flex;
  }

  .mobile-nav-toggle {
    display: block;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* --------------------------------------------------------------------------
   8. GLOBAL IMAGE VIEWER & LIGHTBOX ZOOM MODAL
   -------------------------------------------------------------------------- */
.lightbox-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(15, 12, 11, 0.94);
  z-index: 99999;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.25s ease-in-out;
}

.lightbox-overlay.active {
  display: flex;
  opacity: 1;
}

.lightbox-top-bar {
  width: 100%;
  max-width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #FAF8F5;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.lightbox-caption {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: #FAF8F5;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 60%;
}

.lightbox-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lightbox-btn {
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FAF8F5;
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.lightbox-btn:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: #1C1816;
}

.lightbox-btn-close {
  background-color: #A03C28;
  border-color: #A03C28;
}

.lightbox-btn-close:hover {
  background-color: #832C1B;
  border-color: #832C1B;
  color: #FFF;
}

.lightbox-main-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  height: calc(85vh - 100px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lightbox-stage {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: zoom-in;
  position: relative;
}

.lightbox-stage.is-zoomed {
  cursor: zoom-out;
  overflow: auto;
}

.lightbox-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s cubic-bezier(0.2, 0, 0.2, 1);
  user-select: none;
  box-shadow: none !important;
}

.lightbox-stage.is-zoomed .lightbox-img {
  max-width: none;
  max-height: none;
  transform: scale(2);
  cursor: grab;
}

.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #FAF8F5;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 20;
  transition: all 0.2s ease;
}

.lightbox-nav-prev { left: 0.5rem; }
.lightbox-nav-next { right: 0.5rem; }

.lightbox-nav-btn:hover {
  background-color: var(--color-secondary);
  border-color: var(--color-secondary);
  color: #1C1816;
}

.lightbox-bottom-bar {
  width: 100%;
  max-width: 1200px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text-light-muted);
  font-size: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.lightbox-counter {
  font-weight: 600;
  letter-spacing: 0.05em;
  color: #FAF8F5;
}

.lightbox-zoom-hint {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
}

/* Cursor pointer on all zoomable site images */
.catalog-card-image img,
.hero-banner-image img,
.style-card-image img,
.inspiration-card-image img,
.quick-cat-card img,
.split-card img,
.studio-custom-img img,
.demo-preview-box img,
img[data-zoomable="true"] {
  cursor: zoom-in;
  transition: transform 0.3s ease;
}

.catalog-card-image img:hover,
.style-card-image img:hover,
.inspiration-card-image img:hover,
.quick-cat-card img:hover,
.split-card img:hover {
  transform: scale(1.03);
}