/* Organic Brutalism - Base Variables */
:root {
  --color-basalt: #121212;
  --color-terracotta: #D27D59;
  --color-birch: #E5DED1;
  --color-iron: #5E2C25;
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'Public Sans', sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition-fast: 0.3s ease;
  --transition-slow: 0.6s ease;
  --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-light: 0 4px 16px rgba(0, 0, 0, 0.2);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-birch);
  background-color: var(--color-basalt);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Texture Effect */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(94, 44, 37, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(210, 125, 89, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-birch);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(1.3rem, 4vw, 3rem);
}

h2 {
  font-size: clamp(1rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(0.8rem, 2vw, 1rem);
}

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

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

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

/* Header */
.site-header {
  position: relative;
  z-index: 100;
  padding: var(--space-md) var(--space-lg);
  background: rgba(18, 18, 18, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--color-iron);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.brand-text {
  font-family: var(--font-heading);
  font-size: clamp(0.8rem, 2vw, 1.45rem);
  color: var(--color-birch);
  font-weight: 700;
  letter-spacing: 2px;
}

.nav-container {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.main-nav {
  display: none;
  list-style: none;
  gap: 15px;
  flex-direction: row;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
  }
}

.main-nav a {
  color: var(--color-birch);
  font-size: 1.1rem;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.main-nav a:hover {
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}

/* Burger Menu */
.burger-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 2px solid var(--color-iron);
  padding: var(--space-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 20001;
  position: relative;
}

@media (min-width: 1024px) {
  .burger-btn {
    display: none;
  }
}

.burger-btn:hover {
  border-color: var(--color-terracotta);
}

.burger-line {
  width: 25px;
  height: 3px;
  background: var(--color-birch);
  transition: all var(--transition-fast);
}

.burger-btn.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.burger-btn.active .burger-line:nth-child(2) {
  opacity: 0;
}

.burger-btn.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--color-basalt);
  border-left: 3px solid var(--color-iron);
  z-index: 150;
  transition: right var(--transition-slow);
  padding: var(--space-xxl) var(--space-lg);
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-xxl);
}

.mobile-nav a {
  color: var(--color-birch);
  font-size: 1.3rem;
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-iron);
  display: block;
  transition: all var(--transition-fast);
}

.mobile-nav a:hover {
  color: var(--color-terracotta);
  padding-left: var(--space-lg);
}

.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 140;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Main Content */
main {
  position: relative;
  z-index: 1;
  min-height: calc(100vh - 200px);
}

/* Hero Banner */
.hero-section {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xxl) var(--space-lg);
  overflow: hidden;
  border-bottom: 3px solid var(--color-iron);
}

.hero-content {
  text-align: center;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero-text {
  margin-bottom: var(--space-xl);
}

.hero-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  margin: var(--space-xl) auto 0;
  border: 3px solid var(--color-iron);
  box-shadow: var(--shadow-heavy);
  display: block;
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Sections */
.content-section {
  padding: var(--space-xxl) var(--space-lg);
  position: relative;
  border-bottom: 2px solid var(--color-iron);
  transition: transform var(--transition-slow);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-iron);
}

.section-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .section-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

.section-image {
  width: 100%;
  height: auto;
  border: 2px solid var(--color-iron);
  box-shadow: var(--shadow-light);
  transition: transform var(--transition-fast);
}

.section-image:hover {
  transform: scale(1.02);
}

/* Material Explorer */
.material-explorer {
  padding: var(--space-xxl) var(--space-lg);
  background: rgba(94, 44, 37, 0.1);
  border: 2px solid var(--color-iron);
  border-radius: var(--radius-md);
  margin: var(--space-xl) 0;
}

.explorer-container {
  position: relative;
  width: 100%;
  height: 400px;
  background: var(--color-basalt);
  border: 3px solid var(--color-terracotta);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: grab;
}

.explorer-container:active {
  cursor: grabbing;
}

.material-model {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(210, 125, 89, 0.1) 0%, rgba(94, 44, 37, 0.1) 100%);
  position: relative;
}

.data-overlay {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(18, 18, 18, 0.9);
  padding: var(--space-md);
  border: 1px solid var(--color-terracotta);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

.data-item {
  margin-bottom: var(--space-sm);
  color: var(--color-birch);
}

.data-label {
  color: var(--color-terracotta);
  font-weight: 600;
}

/* Breathability Simulator */
.simulator-container {
  padding: var(--space-xl);
  background: rgba(18, 18, 18, 0.8);
  border: 2px solid var(--color-iron);
  border-radius: var(--radius-md);
  margin: var(--space-xl) 0;
}

.heat-map {
  width: 100%;
  height: 300px;
  background: linear-gradient(to right, 
    rgba(94, 44, 37, 0.3) 0%,
    rgba(210, 125, 89, 0.5) 50%,
    rgba(94, 44, 37, 0.3) 100%);
  border: 2px solid var(--color-terracotta);
  border-radius: var(--radius-sm);
  position: relative;
  overflow: hidden;
  animation: pulse 3s ease-in-out infinite;
}

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

.heat-legend {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-md);
  font-size: 0.9rem;
  color: var(--color-birch);
}

/* Growth Ring Archive */
.archive-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
}

.ring-item {
  background: rgba(94, 44, 37, 0.2);
  border: 2px solid var(--color-iron);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.ring-item:hover {
  border-color: var(--color-terracotta);
  transform: translateY(-5px);
  box-shadow: var(--shadow-light);
}

.ring-visual {
  width: 150px;
  height: 150px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-terracotta) 0%, var(--color-iron) 100%);
  border: 3px solid var(--color-birch);
  position: relative;
}

.ring-year {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-weight: 700;
  color: var(--color-birch);
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-xl);
  background: rgba(94, 44, 37, 0.1);
  border: 2px solid var(--color-iron);
  border-radius: var(--radius-md);
}

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

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

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

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

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

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

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

.checkbox-group label {
  margin-bottom: 0;
  font-weight: normal;
}

.submit-btn {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-terracotta);
  color: var(--color-basalt);
  border: 2px solid var(--color-terracotta);
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-top: 10px;
}

.submit-btn:hover {
  background: transparent;
  color: var(--color-terracotta);
}

/* Google Maps */
.map-container {
  width: 100%;
  height: 400px;
  margin: var(--space-xl) 0;
  border: 3px solid var(--color-iron);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

/* Footer */
.site-footer {
  background: rgba(18, 18, 18, 0.95);
  border-top: 3px solid var(--color-iron);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
    text-align: left;
  }
}

.footer-section h3 {
  color: var(--color-terracotta);
  margin-bottom: var(--space-md);
  font-size: 1.3rem;
}

.footer-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-menu a {
  color: var(--color-birch);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-iron);
  color: var(--color-birch);
  font-size: 0.9rem;
}

/* Privacy Popup */
.privacy-popup {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 500px;
  background: var(--color-basalt);
  border: 3px solid var(--color-terracotta);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  z-index: 1000;
  box-shadow: var(--shadow-heavy);
  display: none;
}

.privacy-popup.active {
  display: block;
  animation: slideUp 0.5s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.popup-content {
  margin-bottom: var(--space-md);
}

.popup-buttons {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

.popup-btn {
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-iron);
  background: transparent;
  color: var(--color-birch);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}

.popup-btn.accept {
  background: var(--color-terracotta);
  border-color: var(--color-terracotta);
  color: var(--color-basalt);
}

.popup-btn:hover {
  border-color: var(--color-terracotta);
  color: var(--color-terracotta);
}

.popup-btn.accept:hover {
  background: transparent;
  color: var(--color-terracotta);
}

/* Products Grid */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin: var(--space-xl) 0;
}

@media (min-width: 768px) {
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.product-card {
  background: rgba(94, 44, 37, 0.1);
  border: 2px solid var(--color-iron);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-fast);
}

.product-card:hover {
  border-color: var(--color-terracotta);
  transform: translateY(-5px);
  box-shadow: var(--shadow-light);
}

.product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border: 2px solid var(--color-iron);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.product-title {
  color: var(--color-terracotta);
  margin-bottom: var(--space-sm);
}

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

/* Thank You Page */
.thank-you-content {
  text-align: center;
  padding: var(--space-xxl) var(--space-lg);
  max-width: 800px;
  margin: 0 auto;
}

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

/* 404 Page */
.error-content {
  text-align: center;
  padding: var(--space-xxl) var(--space-lg);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.error-code {
  font-size: 8rem;
  font-family: var(--font-heading);
  color: var(--color-terracotta);
  margin-bottom: var(--space-md);
}

/* Sedimentary Scroll Effect */
.sedimentary-layer {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-basalt);
  border-bottom: 1px solid var(--color-iron);
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.9rem;
  color: var(--color-birch);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.sedimentary-layer:hover {
  opacity: 1;
}

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

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

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

/* Responsive */
@media (max-width: 767px) {
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }

  .hero-section {
    min-height: 50vh;
    padding: var(--space-lg) var(--space-md);
  }

  .content-section {
    padding: var(--space-lg) var(--space-md);
  }

  .explorer-container {
    height: 300px;
  }

  .contact-form {
    padding: var(--space-md);
  }
}

@media (max-width: 320px) {
  html {
    font-size: 14px;
  }

  .hero-section {
    min-height: 40vh;
  }
}