/* ============================================
   CSS Variables - Design System
   ============================================ */
:root {
  /* Colors - "Woven Heat" Palette */
  --color-primary: #3E363F; /* Dusk Velvet */
  --color-secondary: #D6CEAA; /* Unspun Wool */
  --color-accent: #E8AC65; /* Molten Amber */
  --color-neutral: #858585; /* Felted Grey */
  --color-white: #FFFFFF;
  --color-black: #000000;
  
  /* Typography */
  --font-header: 'Playfair Display', serif;
  --font-body: 'Quicksand', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-rough: 12px 8px 16px 6px; /* Rough edges */
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(62, 54, 63, 0.1);
  --shadow-md: 0 4px 8px rgba(62, 54, 63, 0.2);
  --shadow-lg: 0 8px 16px rgba(62, 54, 63, 0.3);
  --shadow-deep: 0 12px 24px rgba(62, 54, 63, 0.4), 0 4px 8px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-primary);
  background-color: var(--color-secondary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-header);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary);
}

/* ============================================
   Header Styles
   ============================================ */
.site-header {
  background-color: var(--color-primary);
  padding: var(--space-md) var(--space-lg);
  position: relative;
  box-shadow: var(--shadow-deep);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.brand-name {
  font-family: var(--font-header);
  font-size: clamp(0.8rem, 1.7vw, 1.75rem);
  color: var(--color-secondary);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.nav-menu li a {
  color: var(--color-secondary);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.nav-menu li a:hover {
  background-color: rgba(214, 206, 170, 0.1);
  color: var(--color-accent);
}

.textured-box a{
    color: black;
}

.burger-toggle {
  display: none;
  background: none;
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.5rem;
  transition: all var(--transition-base);
  z-index: 102;
  position: relative;
  min-width: 44px;
  min-height: 44px;
}

.burger-toggle:hover {
  background-color: rgba(214, 206, 170, 0.1);
}

.burger-toggle.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  display: flex;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(62, 54, 63, 0.95);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu-container {
  position: relative;
  width: 100%;
  max-width: 400px;
  height: 100%;
  background-color: var(--color-primary);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  padding: var(--space-xl) var(--space-lg);
  margin-left: auto;
}

.mobile-menu-overlay.active .mobile-menu-container {
  transform: translateX(0);
}

.mobile-menu-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-secondary);
  font-size: 2rem;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.mobile-menu-close:hover {
  background-color: rgba(214, 206, 170, 0.1);
}

.mobile-nav-menu {
  list-style: none;
  margin-top: var(--space-xl);
}

.mobile-nav-menu li {
  margin-bottom: var(--space-sm);
}

.mobile-nav-menu li a {
  display: block;
  color: var(--color-secondary);
  font-weight: 500;
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
  font-size: 1.1rem;
}

.mobile-nav-menu li a:hover {
  background-color: rgba(214, 206, 170, 0.1);
  color: var(--color-accent);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-toggle {
    display: block;
  }
  
  .nav-menu {
    display: none;
  }
}

/* ============================================
   Main Content
   ============================================ */
main {
  flex: 1;
  width: 100%;
}

.content-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin-bottom: var(--space-xl);
  border-radius: var(--radius-rough);
  overflow: hidden;
  box-shadow: var(--shadow-deep);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(62, 54, 63, 0.7);
  z-index: 1;
}

.hero-image {
  display: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
  color: var(--color-secondary);
}

.hero-content h1 {
  color: var(--color-secondary);
  margin-bottom: var(--space-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-secondary);
  max-width: 800px;
  margin: 0 auto;
}

/* Hero Background Images */
.hero-home {
  background-image: url('../img/freepik__35mm-film-photography-combine-rugs-and-curtains-pl__43949.webp');
}

.hero-fabric {
  background-image: url('../img/freepik__35mm-film-photography-combine-rugs-and-curtains-pl__43956.webp');
}

.hero-placement {
  background-image: url('../img/freepik__35mm-film-photography-seasonal-adjustments-swap-th__43957.webp');
}

.hero-care {
  background-image: url('../img/freepik__35mm-film-photography-combine-rugs-and-curtains-pl__43949.webp');
}

.hero-contact {
  background-image: url('../img/freepik__35mm-film-photography-tips-for-insulating-with-are__43952.webp');
}

/* ============================================
   Section Styles
   ============================================ */
.content-section {
  margin-bottom: var(--space-xxl);
  padding: var(--space-xl);
  background-color: var(--color-white);
  border-radius: var(--radius-rough);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.content-section::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
  border-radius: var(--radius-rough);
  z-index: -1;
  opacity: 0.1;
}

.section-title {
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 3px solid var(--color-accent);
}

.section-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  box-shadow: var(--shadow-md);
  display: block;
}

/* ============================================
   Textured Containers
   ============================================ */
.textured-box {
  background-color: var(--color-secondary);
  padding: var(--space-xl);
  border-radius: var(--radius-rough);
  box-shadow: var(--shadow-deep);
  border: 2px solid var(--color-primary);
  position: relative;
  margin: var(--space-lg) 0;
}

.textured-box::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      rgba(62, 54, 63, 0.03) 10px,
      rgba(62, 54, 63, 0.03) 20px
    );
  border-radius: var(--radius-rough);
  pointer-events: none;
}

/* ============================================
   Button Styles
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background-color: var(--color-accent);
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  text-align: center;
    margin-top: 10px;
}

.btn:hover {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.footer-section a{
    color: var(--color-accent);
}

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

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

/* ============================================
   Form Styles
   ============================================ */
.contact-form {
  max-width: 600px;
  margin: var(--space-xl) auto;
  padding: var(--space-xl);
  background-color: var(--color-white);
  border-radius: var(--radius-rough);
  box-shadow: var(--shadow-deep);
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid var(--color-neutral);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-base);
  background-color: var(--color-white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin-top: 4px;
  cursor: pointer;
}

.checkbox-group label {
  margin-bottom: 0;
  font-weight: 400;
  cursor: pointer;
}

/* ============================================
   Products Grid
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xl) 0;
}

.product-card {
  background-color: var(--color-white);
  border-radius: var(--radius-rough);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base);
  border: 2px solid var(--color-primary);
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-deep);
}

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.product-info {
  padding: var(--space-lg);
}

.product-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.product-description {
  color: var(--color-neutral);
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-top: var(--space-md);
}

/* ============================================
   Map Container
   ============================================ */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin: var(--space-xl) 0;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ============================================
   Footer Styles
   ============================================ */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-secondary);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
}

.footer-section h3 {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

.footer-menu {
  list-style: none;
}

.footer-menu li {
  margin-bottom: var(--space-sm);
}

.footer-menu a {
  color: var(--color-secondary);
  transition: color var(--transition-base);
}

.footer-menu a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(214, 206, 170, 0.2);
  color: var(--color-neutral);
}

/* ============================================
   Privacy Popup
   ============================================ */
.privacy-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(62, 54, 63, 0.9);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.privacy-popup.active {
  display: flex;
}

.popup-content {
  background-color: var(--color-white);
  padding: var(--space-xl);
  border-radius: var(--radius-rough);
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-deep);
  position: relative;
}

.popup-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-primary);
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition-base);
}

.popup-close:hover {
  color: var(--color-accent);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.hidden {
  display: none;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  .content-wrapper {
    padding: var(--space-lg) var(--space-md);
  }
  
  .hero-section {
    min-height: 40vh;
  }
  
  .content-section {
    padding: var(--space-lg);
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }
  
  .content-wrapper {
    padding: var(--space-md) var(--space-sm);
  }
  
  .hero-content {
    padding: var(--space-lg);
  }
  
  .contact-form {
    padding: var(--space-lg);
  }
}

/* ============================================
   404 Page Styles
   ============================================ */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
}

.error-code {
  font-size: clamp(4rem, 10vw, 8rem);
  font-weight: 900;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: var(--space-lg);
}

/* ============================================
   Thank You Page Styles
   ============================================ */
.thank-you-section {
  text-align: center;
  padding: var(--space-xxl) var(--space-lg);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.thank-you-icon {
  font-size: 4rem;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

/* ============================================
   Heat Map Styles (Placement Page)
   ============================================ */
.apartment-layout {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: var(--space-xl) auto;
  background-color: var(--color-white);
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.cold-spot {
  position: absolute;
  background-color: rgba(232, 172, 101, 0.3);
  border: 2px dashed var(--color-accent);
  border-radius: var(--radius-sm);
  padding: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
}

.placement-suggestion {
  background-color: var(--color-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin: var(--space-md) 0;
  border-left: 4px solid var(--color-accent);
}

/* ============================================
   GSM Guide Styles (Fabric Science Page)
   ============================================ */
.gsm-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.gsm-card {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-md);
}

.gsm-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

/* ============================================
   Maintenance Page Styles
   ============================================ */
.maintenance-step {
  background-color: var(--color-secondary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  border-left: 4px solid var(--color-accent);
}

.step-number {
  display: inline-block;
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  color: var(--color-primary);
  border-radius: 50%;
  text-align: center;
  line-height: 40px;
  font-weight: 700;
  margin-right: var(--space-md);
}