/* ============================================
   HERITAGE LABORATORY DESIGN SYSTEM
   ============================================ */

:root {
  /* Color Palette - Macro-Luxury */
  --color-silver-birch: #E5E4E2;
  --color-deep-navy: #002366;
  --color-starch-white: #FBFCF8;
  --color-accent-gold: #D4AF37;
  --color-text-dark: #1a1a1a;
  --color-text-light: #666;
  
  /* Typography */
  --font-heading: 'Tenor Sans', 'Cinzel', serif;
  --font-body: 'Cormorant Garamond', serif;
  --font-fallback: Georgia, serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* Border & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  /* Shadows */
  --shadow-soft: 0 2px 8px rgba(0, 35, 102, 0.08);
  --shadow-medium: 0 4px 16px rgba(0, 35, 102, 0.12);
  --shadow-strong: 0 8px 32px rgba(0, 35, 102, 0.16);
  
  /* Transitions */
  --transition-fast: 0.3s ease;
  --transition-slow: 0.8s ease;
  --transition-parallax: 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body), var(--font-fallback);
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-dark);
  background-color: var(--color-starch-white);
  overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading), var(--font-fallback);
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-deep-navy);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(1.5rem, 4vw, 3rem);
  font-weight: 300;
  letter-spacing: 0.05em;
}

h2 {
  font-size: clamp(1.3rem, 3vw, 2rem);
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1rem);
}

p {
  margin-bottom: var(--space-sm);
  color: var(--color-text-light);
}

a {
  color: var(--color-deep-navy);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-gold);
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: rgba(251, 252, 248, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 35, 102, 0.1);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-name {
  font-family: var(--font-heading), var(--font-fallback);
  font-size: clamp(0.8rem, 2vw, 1.35rem);
  font-weight: 300;
  color: var(--color-deep-navy);
  text-transform: uppercase;
}

.main-navigation {
  display: flex;
  gap: 15px;
  align-items: center;
  list-style: none;
}

.main-navigation a {
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
  padding: var(--space-xs) 0;
}

.main-navigation a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent-gold);
  transition: width var(--transition-fast);
}

.main-navigation a:hover::after {
  width: 100%;
}

/* Burger Menu */
.burger-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  z-index: 10001;
  position: relative;
  margin-left: auto;
}

.burger-icon {
  width: 28px;
  height: 2px;
  background: var(--color-deep-navy);
  position: relative;
  transition: background var(--transition-fast);
}

.burger-icon::before,
.burger-icon::after {
  content: '';
  position: absolute;
  width: 28px;
  height: 2px;
  background: var(--color-deep-navy);
  transition: transform var(--transition-fast);
}

.burger-icon::before {
  top: -8px;
}

.burger-icon::after {
  bottom: -8px;
}

.burger-toggle.active .burger-icon {
  background: transparent;
}

.burger-toggle.active .burger-icon::before {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger-toggle.active .burger-icon::after {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-toggle {
    display: block;
  }
  
  .header-container nav {
    position: static;
  }
  
  .main-navigation {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--color-starch-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-xl) var(--space-lg);
    gap: var(--space-md);
    box-shadow: var(--shadow-strong);
    transition: right var(--transition-slow);
    z-index: 999;
    overflow-y: auto;
    margin: 0;
  }
  
  .main-navigation.active {
    right: 0;
  }
  
  .main-navigation a {
    font-size: 1.125rem;
    width: 100%;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0, 35, 102, 0.1);
  }
  
  .site-header {
    position: relative;
    z-index: 1000;
  }
}

/* ============================================
   HERO BANNERS (Full-Width)
   ============================================ */

.hero-banner {
  position: relative;
  width: 100vw;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.banner-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.4;
  transform: scale(1.1);
  transition: transform var(--transition-parallax);
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(229, 228, 226, 0.85) 0%,
    rgba(251, 252, 248, 0.9) 100%
  );
  z-index: 2;
}

.banner-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  max-width: 900px;
  margin: 0 auto;
}

.banner-title {
  color: var(--color-deep-navy);
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 4px rgba(255, 255, 255, 0.5);
}

.banner-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: var(--color-text-light);
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.content-section {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg) 0;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  position: relative;
  padding-bottom: var(--space-md);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background: var(--color-accent-gold);
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

.grid-container {
  display: grid;
  gap: var(--space-lg);
  margin: var(--space-lg) auto;
  max-width: 1200px;
  padding: 0 var(--space-md);
}

.grid-two {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-three {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-item {
  background: var(--color-starch-white);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.grid-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-medium);
}

.grid-item-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.grid-item-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
  color: var(--color-deep-navy);
}

.grid-item-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-light);
}

/* ============================================
   INTERACTIVE FEATURES
   ============================================ */

/* Luster Slider (Before/After) */
.luster-container {
  position: relative;
  width: 100%;
  max-width: 800px;
  margin: var(--space-lg) auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-strong);
}

.luster-slider-wrapper {
  position: relative;
  width: 100%;
  height: 500px;
  overflow: hidden;
}

.luster-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.luster-image-before {
  clip-path: inset(0 50% 0 0);
  transition: clip-path var(--transition-slow);
}

.luster-slider {
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 100%;
  background: var(--color-accent-gold);
  cursor: ew-resize;
  z-index: 10;
  transform: translateX(-50%);
}

.luster-slider::before {
  content: '◄ ►';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-accent-gold);
  color: var(--color-deep-navy);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  box-shadow: var(--shadow-medium);
}

/* Stain Diagnostic Tool */
.stain-diagnostic {
  background: var(--color-silver-birch);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  margin: var(--space-lg) 0;
}

.stain-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.stain-button {
  padding: var(--space-sm) var(--space-md);
  background: var(--color-starch-white);
  border: 2px solid var(--color-deep-navy);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-deep-navy);
  transition: all var(--transition-fast);
}

.stain-button:hover,
.stain-button.active {
  background: var(--color-deep-navy);
  color: var(--color-starch-white);
}

.probability-bar {
  width: 100%;
  height: 30px;
  background: var(--color-starch-white);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: var(--space-sm);
  position: relative;
}

.probability-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-deep-navy), var(--color-accent-gold));
  transition: width var(--transition-slow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-starch-white);
  font-weight: 600;
}

/* ============================================
   FORMS
   ============================================ */

.contact-form {
  max-width: 700px;
  margin: var(--space-lg) auto;
  background: var(--color-starch-white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--color-deep-navy);
  text-transform: uppercase;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid rgba(0, 35, 102, 0.2);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-silver-birch);
  color: var(--color-text-dark);
  transition: border-color var(--transition-fast);
}

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

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

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

.form-checkbox input {
  margin-top: 4px;
  cursor: pointer;
}

.form-checkbox label {
  font-size: 0.95rem;
  color: var(--color-text-light);
  cursor: pointer;
}

.form-submit {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-deep-navy);
  color: var(--color-starch-white);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition-fast);
  margin-top: var(--space-md);
}

.form-submit:hover {
  background: var(--color-accent-gold);
  color: var(--color-deep-navy);
}

/* ============================================
   MAPS
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
  margin: var(--space-lg) 0;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* ============================================
   PRODUCTS
   ============================================ */

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-lg) 0;
}

.product-card {
  background: var(--color-starch-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-strong);
}

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

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

.product-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
  color: var(--color-deep-navy);
}

.product-description {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.product-price {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-deep-navy);
  font-weight: 600;
}

/* ============================================
   CALENDAR / EVENT READINESS
   ============================================ */

.event-calendar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.event-card {
  background: var(--color-silver-birch);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent-gold);
  box-shadow: var(--shadow-soft);
}

.event-month {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-deep-navy);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.event-dates {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.event-description {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-light);
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-deep-navy);
  color: var(--color-starch-white);
  padding: var(--space-lg);
  margin-top: var(--space-xl);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
}

.footer-section h3 {
  color: var(--color-starch-white);
  font-size: 1rem;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

.footer-links li {
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--color-silver-birch);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer-contact {
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--color-silver-birch);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  margin-top: var(--space-md);
  border-top: 1px solid rgba(229, 228, 226, 0.2);
  font-size: 0.875rem;
  color: var(--color-silver-birch);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

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

.shimmer {
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
  :root {
    --space-lg: 2rem;
    --space-xl: 3rem;
  }
  
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }
  
  main {
    padding: var(--space-md) var(--space-sm);
  }
  
  .hero-banner {
    min-height: 50vh;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }
  
  .event-calendar {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
  }
}

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

/* ============================================
   UTILITY PAGES
   ============================================ */

.centered-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.centered-content {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--space-xl);
}

.large-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--space-md);
  color: var(--color-deep-navy);
}

.error-code {
  font-size: clamp(4rem, 8vw, 8rem);
  margin-bottom: var(--space-md);
  color: var(--color-deep-navy);
  font-weight: 300;
}

.error-title {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: var(--space-md);
  color: var(--color-deep-navy);
}

.large-text {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}
.footer-section p{color: white}
.footer-bottom p{color: white}
.medium-text {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.button-group {
  margin-top: var(--space-xl);
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}

.button-secondary {
  display: inline-block;
  text-align: center;
  padding: var(--space-sm) var(--space-lg);
  text-decoration: none;
  background: var(--color-silver-birch);
  color: var(--color-deep-navy);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background var(--transition-fast);
}

.button-secondary:hover {
  background: var(--color-deep-navy);
  color: var(--color-starch-white);
}

/* ============================================
   PRIVACY POPUP
   ============================================ */

.privacy-popup {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  max-width: 500px;
  background: var(--color-starch-white);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-strong);
  z-index: 2000;
  border: 2px solid var(--color-deep-navy);
  display: none;
}

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

.privacy-popup-content {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-dark);
  margin-bottom: var(--space-sm);
}

.privacy-popup-buttons {
  display: flex;
  gap: var(--space-sm);
}

.privacy-button {
  padding: var(--space-xs) var(--space-sm);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.privacy-accept {
  background: var(--color-deep-navy);
  color: var(--color-starch-white);
}

.privacy-accept:hover {
  background: var(--color-accent-gold);
  color: var(--color-deep-navy);
}

.privacy-decline {
  background: transparent;
  color: var(--color-deep-navy);
  border: 1px solid var(--color-deep-navy);
}

.privacy-decline:hover {
  background: var(--color-deep-navy);
  color: var(--color-starch-white);
}