/* ==========================================================================
   MM HOMETOWN FURNITURE - ARCHITECTURAL DESIGN SYSTEM & STYLING
   Location: Angul, Odisha, India
   STRICT CONSTRAINT COMPLIANCE & ULTRA MOBILE RESPONSIVE SUITE
   - Zero Pure White Backgrounds (#ffffff forbidden)
   - Zero Harsh Gradients
   - Zero Drop Shadows (Crisp 1px borders only)
   - Zero Glassmorphism / Liquid Blur Effects
   - Zero Soft Corner Radiuses (border-radius: 0 throughout)
   - Zero Purple/Black Combinations
   - Zero Radial Orbs, Dot Grids, Neon, or Basic Pastels
   - Zero Hover Transform Animations (Instant crisp state shifts)
   - Zero Lucide Icons (Custom Inline SVGs)
   - Zero Emojis & Zero Em Dashes
   - 100% Mobile Responsive across 320px, 375px, 425px, 768px, 1024px+
   ========================================================================== */

/* Typography Imports: Cinzel & DM Sans */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* Color Variables - 3 Tiers Architecture */
:root {
  /* Tier 1: Primary Branding / Obsidian Teak */
  --color-primary: #23201C;
  --color-primary-light: #2D2924;
  --color-primary-dark: #171512;
  
  /* Tier 2: Secondary Accents / Heritage Brass & Teak Clay */
  --color-secondary: #B89250;
  --color-secondary-hover: #A07C3D;
  --color-accent-clay: #8C5338;
  
  /* Tier 3: Neutrals / Parchment & Charcoal Slate */
  --bg-main: #F6F3EE;            /* Warm Off-White / Parchment Ivory */
  --bg-surface: #EDE7DD;         /* Soft Sand Container Background */
  --bg-surface-alt: #E3DBD0;     /* Deep Sand Divider Surface */
  --border-color: #D5CEC0;       /* Crisp Architectural Border */
  --border-dark: #3E3730;        /* Dark Mode Architectural Border */
  
  --text-main: #23201C;          /* Deep Charcoal Text */
  --text-muted: #5E584E;         /* Muted Earth Slate Text */
  --text-inverse: #F6F3EE;       /* Inverse Ivory Text */
  --text-secondary-inv: #D2C9BD; /* Muted Inverse Text */
  
  /* Typography Variables */
  --font-heading: 'Cinzel', serif;
  --font-body: 'DM Sans', sans-serif;
  
  /* Layout Spacing Standard */
  --spacing-unit: 24px;
}

/* Base Reset & Globals */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* STRICT ENFORCEMENT: Sharp corners only */
  box-shadow: none !important;  /* STRICT ENFORCEMENT: Zero drop shadows */
  text-shadow: none !important;
}

html {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  background-color: var(--bg-main);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden !important;
  width: 100%;
  max-width: 100%;
  position: relative;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.25;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
  max-width: 100%;
}

h1 { font-size: clamp(1.75rem, 5vw, 2.75rem); margin-bottom: 1rem; }
h2 { font-size: clamp(1.4rem, 4vw, 2rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.15rem, 3.5vw, 1.5rem); margin-bottom: 0.75rem; }
h4 { font-size: clamp(1rem, 3vw, 1.25rem); margin-bottom: 0.5rem; }
h5 { font-size: 1.1rem; margin-bottom: 0.5rem; }

p, span, a, label, li {
  overflow-wrap: break-word;
  word-wrap: break-word;
  max-width: 100%;
}

p {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

p.lead {
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text-main);
}

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

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

/* Layout Containers & Universal CSS Grid Item Safeguards */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  min-width: 0;
}

/* Prevent grid and flex items from overflowing horizontally */
.hero-grid > *,
.editorial-grid > *,
.product-grid-2x2 > *,
.product-grid-4col > *,
.spec-matrix-grid > *,
.footer-grid > *,
.modal-body-grid > * {
  min-width: 0;
  max-width: 100%;
}

.section-padding {
  padding-top: 80px;
  padding-bottom: 80px;
}

.section-padding-sm {
  padding-top: 48px;
  padding-bottom: 48px;
}

/* Top Announcement Bar */
.top-bar {
  background-color: var(--color-primary-dark);
  color: var(--text-secondary-inv);
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border-dark);
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.top-bar-info {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 100%;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
}

.top-bar-item span {
  word-break: break-word;
  overflow-wrap: break-word;
}

.top-bar-item svg {
  width: 14px;
  height: 14px;
  fill: var(--color-secondary);
  flex-shrink: 0;
}

/* Main Navigation Header */
.main-header {
  background-color: var(--color-primary);
  border-bottom: 2px solid var(--color-secondary);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 14px 0;
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo img {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-secondary);
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-inverse);
  letter-spacing: 0.08em;
  line-height: 1;
}

.brand-subtitle {
  font-size: 0.65rem;
  color: var(--color-secondary);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 28px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-inverse);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 0;
  position: relative;
  transition: color 0.15s ease;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-secondary);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Button Component Standards */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 24px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--color-secondary-hover);
  border-color: var(--color-secondary-hover);
  color: #000000;
}

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

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

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

.btn-outline:hover {
  background-color: var(--text-main);
  color: var(--bg-main);
}

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

.btn-outline-dark:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
}

.btn-sm {
  padding: 10px 16px;
  font-size: 0.78rem;
}

/* Mobile Menu Toggle Button */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-secondary);
  color: var(--text-inverse);
  padding: 8px 12px;
  cursor: pointer;
}

.mobile-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--text-inverse);
}

/* Hero Section Architectural Split */
.hero-section {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  border-bottom: 1px solid var(--border-dark);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  min-height: 540px;
}

.hero-content {
  padding: 56px 40px 56px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border-dark);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--color-primary-light);
  border: 1px solid var(--border-dark);
  padding: 6px 14px;
  width: fit-content;
  max-width: 100%;
  white-space: normal;
  word-break: break-word;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-secondary);
  margin-bottom: 20px;
}

.hero-title {
  color: var(--text-inverse);
  margin-bottom: 20px;
  line-height: 1.18;
}

.hero-title span {
  color: var(--color-secondary);
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary-inv);
  margin-bottom: 32px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-media-wrapper {
  position: relative;
  background-color: var(--color-primary-dark);
  overflow: hidden;
}

.hero-image-frame {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: 1px solid var(--border-dark);
  position: relative;
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.92) contrast(1.05);
}

.hero-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(23, 21, 18, 0.92);
  border-top: 1px solid var(--color-secondary);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-meta-title {
  font-family: var(--font-heading);
  font-size: 0.88rem;
  color: var(--text-inverse);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-meta-desc {
  font-size: 0.78rem;
  color: var(--color-secondary);
}

/* Asymmetrical 2-Column Section Layout */
.editorial-split-section {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.editorial-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.editorial-card {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 36px;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-secondary-hover);
  margin-bottom: 10px;
  display: block;
}

/* Collection Explorer & Filter Bar */
.catalog-section {
  background-color: var(--bg-main);
  border-bottom: 1px solid var(--border-color);
}

.section-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
  flex-wrap: wrap;
  gap: 20px;
}

.catalog-filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 10px 18px;
  background-color: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border-color: var(--color-primary);
}

/* Product Grids (Strictly 2x2 or 4col desktop, 1col mobile) */
.product-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.product-grid-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: relative;
  width: 100%;
}

.product-card-image {
  position: relative;
  width: 100%;
  height: 300px;
  overflow: hidden;
  background-color: var(--bg-surface-alt);
  border-bottom: 1px solid var(--border-color);
}

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

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
  padding: 4px 10px;
  font-family: var(--font-heading);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.product-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.product-spec-list {
  list-style: none;
  margin-bottom: 18px;
}

.product-spec-item {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.square-bullet {
  width: 6px;
  height: 6px;
  background-color: var(--color-secondary-hover);
  display: inline-block;
  flex-shrink: 0;
}

.product-card-footer {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.product-price-range {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-accent-clay);
}

/* SKELETON LOADER COMPONENT */
.skeleton-loader {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.skeleton-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.skeleton-box {
  background-color: var(--bg-surface-alt);
  position: relative;
  overflow: hidden;
}

.skeleton-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(246, 243, 238, 0.4), transparent);
  animation: skeleton-pulse 1.5s infinite;
}

@keyframes skeleton-pulse {
  0% { left: -100%; }
  100% { left: 100%; }
}

.skeleton-img { height: 240px; width: 100%; }
.skeleton-title { height: 22px; width: 70%; }
.skeleton-text { height: 16px; width: 90%; }
.skeleton-btn { height: 40px; width: 40%; margin-top: 10px; }

/* Interactive Product Demo & Lead Magnet Modals */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(23, 20, 17, 0.88);
  z-index: 20000;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
}

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

.modal-container {
  background-color: var(--bg-main);
  border: 2px solid var(--color-secondary);
  width: 100%;
  max-width: 920px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  margin: auto;
}

.modal-header-bar {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-dark);
}

.modal-title {
  font-size: 1rem;
  color: var(--color-secondary);
  font-family: var(--font-heading);
}

.modal-close-btn {
  background: transparent;
  border: 1px solid var(--color-secondary);
  color: var(--text-inverse);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: bold;
}

.modal-close-btn:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary-dark);
}

.modal-body-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 28px;
  gap: 28px;
}

.modal-image-preview {
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface-alt);
}

.modal-image-preview img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

/* Estimator & Forms */
.estimator-section {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  border-bottom: 1px solid var(--border-dark);
}

.estimator-box {
  background-color: var(--color-primary-light);
  border: 1px solid var(--border-dark);
  padding: 32px;
}

.form-group-stacked {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-inverse);
}

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

/* FORM INPUT FIX FOR MOBILE (Minimum 16px font-size stops iOS auto-zoom) */
.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: 1rem; /* 16px stops iOS auto-zoom */
  padding: 14px 16px;
  background-color: var(--bg-main);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  width: 100%;
  outline: none;
  -webkit-appearance: none;
}

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

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

.estimator-result-card {
  background-color: var(--color-primary-dark);
  border: 1px solid var(--color-secondary);
  padding: 20px;
  margin-top: 20px;
}

.estimator-price-tag {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--color-secondary);
  margin-bottom: 6px;
}

/* Trust Section & Spec Matrix */
.trust-section {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
}

.spec-matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.spec-box {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 24px 20px;
}

.spec-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-secondary-hover);
  line-height: 1;
  margin-bottom: 10px;
}

.spec-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

/* Footer Architecture */
.main-footer {
  background-color: var(--color-primary-dark);
  color: var(--text-inverse);
  border-top: 3px solid var(--color-secondary);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-top: 56px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-dark);
}

.footer-brand-desc {
  color: var(--text-secondary-inv);
  font-size: 0.88rem;
  margin-top: 14px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--color-secondary);
  margin-bottom: 18px;
  letter-spacing: 0.08em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-secondary-inv);
  font-size: 0.88rem;
  transition: color 0.15s ease;
}

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

.footer-bottom {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
  color: var(--text-secondary-inv);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

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

/* Floating Mobile WhatsApp Action Button */
.mobile-whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: var(--color-primary-dark);
  color: #25D366;
  border: 1.5px solid #25D366;
  padding: 12px 20px;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.mobile-whatsapp-fab:hover {
  background-color: #25D366;
  color: var(--color-primary-dark);
}

.mobile-whatsapp-fab svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex-shrink: 0;
}

/* ==========================================================================
   MASTER RESPONSIVE SUITE (Mobile First & Breakpoint Architecture)
   ========================================================================== */

/* Header & Sticky Context */
.main-header {
  position: sticky;
  top: 0;
  z-index: 10000;
}

/* Tablet & Medium Laptops (max-width: 992px) */
@media (max-width: 992px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero-content {
    padding: 40px 0;
    border-right: none;
    border-bottom: 1px solid var(--border-dark);
  }
  .editorial-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .product-grid-4col,
  .spec-matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .modal-body-grid {
    grid-template-columns: 1fr;
  }
}

/* Mobile Devices (max-width: 768px) */
@media (max-width: 768px) {
  .section-padding {
    padding-top: 48px;
    padding-bottom: 48px;
  }
  .section-padding-sm {
    padding-top: 32px;
    padding-bottom: 32px;
  }
  .top-bar-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .top-bar-info {
    flex-direction: column;
    gap: 4px;
  }
  .top-bar-item {
    font-size: 0.78rem;
  }

  /* Header & Mobile Drawer Menu */
  .header-actions {
    display: none; /* Hidden on desktop slot; available inside drawer */
  }
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
  }
  .nav-menu {
    display: none;
  }
  .nav-menu.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-primary-dark);
    padding: 24px 20px;
    border-top: 1px solid var(--border-dark);
    z-index: 99999;
    align-items: stretch;
    gap: 16px;
    overflow-y: auto;
  }
  .nav-menu.mobile-open .nav-link {
    font-size: 1.05rem;
    padding: 12px 0;
    width: 100%;
    border-bottom: 1px solid var(--border-dark);
    color: var(--text-inverse);
  }
  .nav-menu.mobile-open .mobile-drawer-cta {
    margin-top: 12px;
    width: 100%;
  }

  /* Hero & Editorial Adjustments */
  .hero-content {
    padding: 28px 0;
  }
  .hero-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
    min-height: 44px;
    white-space: normal;
    text-align: center;
    word-break: break-word;
  }

  .btn {
    white-space: normal;
    text-align: center;
    word-break: break-word;
  }
  .hero-image-frame {
    height: 260px;
    min-height: 260px;
  }
  .hero-image-overlay {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .editorial-card {
    padding: 24px 16px;
  }

  /* Catalog Grid 1-Column on Mobile */
  .product-grid-2x2,
  .product-grid-4col,
  .skeleton-loader,
  .spec-matrix-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .catalog-filter-bar {
    width: 100%;
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 10px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .catalog-filter-bar::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0;
    min-height: 44px;
    padding: 12px 20px;
  }

  .product-card-image {
    height: 240px;
  }

  .product-card-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .product-card-footer .btn {
    width: 100%;
    min-height: 44px;
  }

  .estimator-box {
    padding: 20px 16px;
  }

  .estimator-result-card {
    padding: 18px 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .modal-body-grid {
    padding: 16px;
    gap: 20px;
  }
  .modal-image-preview img {
    height: 240px;
  }
}

/* Small Smartphone Screen (max-width: 480px) */
@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .brand-logo img {
    width: 38px;
    height: 38px;
  }
  .brand-title {
    font-size: 1.05rem;
  }
  .brand-subtitle {
    font-size: 0.55rem;
    letter-spacing: 0.12em;
  }
  .top-bar-item {
    font-size: 0.75rem;
  }
  .btn {
    width: 100%;
    min-height: 44px;
    padding: 12px 16px;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
  }
  .mobile-whatsapp-fab {
    bottom: 16px;
    right: 16px;
    padding: 10px 14px;
    font-size: 0.75rem;
  }
  .modal-container {
    max-height: 95vh;
  }
  .modal-body-grid {
    padding: 14px;
    gap: 16px;
  }
}