/* ==========================================================================
   MM HOMETOWN FURNITURE - ARCHITECTURAL DESIGN SYSTEM & STYLING
   Location: Angul, Odisha, India
   Strict Constraint Compliance:
   - 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
   ========================================================================== */

/* 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;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* 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;
}

h1 { font-size: 2.75rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
h4 { font-size: 1.25rem; margin-bottom: 0.5rem; }
h5 { font-size: 1.1rem; margin-bottom: 0.5rem; }

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 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.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;
}

.top-bar-info {
  display: flex;
  gap: 24px;
}

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

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

/* 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: 16px 0;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo img {
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-secondary);
}

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

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-inverse);
  letter-spacing: 0.08em;
  line-height: 1;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--color-secondary);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-top: 4px;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  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: 0.12em;
  padding: 14px 28px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.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 18px;
  font-size: 0.78rem;
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-secondary);
  color: var(--text-inverse);
  padding: 8px;
  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: 580px;
}

.hero-content {
  padding: 64px 48px 64px 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: 12px;
  background-color: var(--color-primary-light);
  border: 1px solid var(--border-dark);
  padding: 6px 16px;
  width: fit-content;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-secondary);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.25rem;
  color: var(--text-inverse);
  margin-bottom: 20px;
  line-height: 1.15;
}

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

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary-inv);
  margin-bottom: 36px;
  max-width: 580px;
}

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

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

.hero-image-frame {
  width: 100%;
  height: 100%;
  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: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-meta-title {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  color: var(--text-inverse);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-meta-desc {
  font-size: 0.8rem;
  color: var(--color-secondary);
}

/* Asymmetrical 2-Column Section Layout (Avoiding 3-cards row) */
.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: 48px;
  align-items: center;
}

.editorial-card {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 40px;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-secondary-hover);
  margin-bottom: 12px;
  display: block;
}

/* Collection Explorer & Tabs */
.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: 40px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
}

.catalog-filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 10px 20px;
  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;
}

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

/* Product Grid Architecture - 2x2 or 4-Column (Strictly avoiding 3 in a row) */
.product-grid-2x2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.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;
}

.product-card-image {
  position: relative;
  width: 100%;
  height: 320px;
  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: 16px;
  left: 16px;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
  padding: 4px 12px;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.product-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.product-spec-list {
  list-style: none;
  margin-bottom: 20px;
}

.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: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.product-price-range {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-accent-clay);
}

/* SKELETON LOADER COMPONENT (Required Constraint) */
.skeleton-loader {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.skeleton-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.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: 260px; width: 100%; }
.skeleton-title { height: 24px; width: 70%; }
.skeleton-text { height: 16px; width: 90%; }
.skeleton-btn { height: 44px; width: 40%; margin-top: 12px; }

/* Interactive Product Demo / Detail Modal Window */
.modal-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(23, 20, 17, 0.85);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.modal-container {
  background-color: var(--bg-main);
  border: 2px solid var(--color-secondary);
  width: 100%;
  max-width: 960px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-header-bar {
  background-color: var(--color-primary);
  color: var(--text-inverse);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-dark);
}

.modal-title {
  font-size: 1.1rem;
  color: var(--color-secondary);
}

.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: 32px;
  gap: 32px;
}

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

.modal-image-preview img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

/* Custom Estimator & Quotation Calculator (Replacing 3 pricing tiers) */
.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: 40px;
}

.form-group-stacked {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-inverse);
}

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

.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 14px 18px;
  background-color: var(--bg-main);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  width: 100%;
  outline: 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: 24px;
  margin-top: 24px;
}

.estimator-price-tag {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

/* Verification & Local Angul Patron Stories (Authentic context) */
.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: 24px;
}

.spec-box {
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  padding: 28px 24px;
}

.spec-number {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-secondary-hover);
  line-height: 1;
  margin-bottom: 12px;
}

.spec-title {
  font-size: 1rem;
  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: 48px;
  padding-top: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-dark);
}

.footer-brand-desc {
  color: var(--text-secondary-inv);
  font-size: 0.9rem;
  margin-top: 16px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-secondary);
  margin-bottom: 20px;
  letter-spacing: 0.1em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary-inv);
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

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

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary-inv);
}

.footer-legal-links {
  display: flex;
  gap: 24px;
}

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

/* Responsive Breakpoints */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-content {
    padding: 48px 0;
    border-right: none;
    border-bottom: 1px solid var(--border-dark);
  }
  .editorial-grid {
    grid-template-columns: 1fr;
  }
  .product-grid-2x2,
  .product-grid-4col,
  .spec-matrix-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .modal-body-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .nav-menu.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    padding: 24px;
    border-bottom: 2px solid var(--color-secondary);
  }
  .product-grid-2x2,
  .product-grid-4col,
  .spec-matrix-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.25rem;
  }
  .top-bar-info {
    flex-direction: column;
    gap: 4px;
  }
}