/* ============================================
   Industrial Minimalism + Circular Design
   Zero-Waste Furniture Production Website
   ============================================ */

/* CSS Variables */
:root {
  /* Colors - Industrial + Natural + Sustainable */
  --color-recycled-fiber: #E3E2DD;
  --color-matte-concrete: #C5C4BD;
  --color-soft-graphite: #4A4A47;
  --color-wood-auburn: #8A6043;
  --color-cork-brown: #BDA581;
  --color-lime-green: #8EBF5B;
  --color-blueprint-blue: #5F7C9A;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Typography */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --border-width: 1px;
  
  /* Shadows */
  --shadow-soft: 0 2px 8px rgba(74, 74, 71, 0.1);
  --shadow-medium: 0 4px 16px rgba(74, 74, 71, 0.15);
  --shadow-strong: 0 8px 24px rgba(74, 74, 71, 0.2);
  --shadow-steel: 0 2px 4px rgba(95, 124, 154, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-soft-graphite);
  background-color: var(--color-recycled-fiber);
  overflow-x: hidden;
}

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

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);
}

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

a:hover {
  color: var(--color-wood-auburn);
}

/* Header */
.site-header {
  background-color: var(--color-recycled-fiber);
  border-bottom: var(--border-width) solid var(--color-matte-concrete);
  padding: var(--space-md) var(--space-lg);
  position: relative;
  z-index: 1000;
  transition: transform var(--transition-base);
}

.site-header.hidden {
  transform: translateY(-100%);
}

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

.brand-name {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 700;
  color: var(--color-soft-graphite);
  letter-spacing: -0.02em;
}

/* Navigation */
.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-soft-graphite);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background-color: var(--color-matte-concrete);
  color: var(--color-wood-auburn);
}

/* Burger Menu */
.burger-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}

.burger-line {
  width: 25px;
  height: 2px;
  background-color: var(--color-soft-graphite);
  transition: all var(--transition-fast);
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Main Content */
.main-content {
  min-height: calc(100vh - 200px);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-recycled-fiber) 0%, var(--color-matte-concrete) 100%);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xxl);
  overflow: hidden;
  padding: var(--space-xxl) var(--space-lg);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(74, 74, 71, 0.5);
  z-index: 1;
}

.hero-content {
  text-align: center;
  z-index: 2;
  max-width: 800px;
  position: relative;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: var(--space-lg);
  color: var(--color-recycled-fiber);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  color: var(--color-recycled-fiber);
  margin-bottom: var(--space-xl);
  opacity: 0.95;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-cta {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background-color: var(--color-soft-graphite);
  color: var(--color-recycled-fiber);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  text-shadow: none;
}

.hero-cta:hover {
  color: white;
  background-color: var(--color-wood-auburn);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

/* Section Styles */
.content-section {
  margin-bottom: var(--space-xxl);
  padding: var(--space-xl) 0;
}

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

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--color-lime-green);
  border-radius: var(--radius-sm);
}

/* Grid Layouts */
.grid-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.grid-three {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

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

/* Cards */
.card {
  background-color: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  transition: all var(--transition-base);
  border: var(--border-width) solid var(--color-matte-concrete);
}

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

.card-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  object-fit: cover;
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-soft-graphite);
}

.card-text {
  color: var(--color-soft-graphite);
  opacity: 0.8;
  margin-bottom: var(--space-md);
}

.card-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-wood-auburn);
}

/* Process Cards */
.process-card {
  position: relative;
  padding: var(--space-xl);
  background: linear-gradient(135deg, #fff 0%, var(--color-recycled-fiber) 100%);
  border-left: 4px solid var(--color-lime-green);
}

.process-number {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-lime-green);
  opacity: 0.2;
}

.process-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.process-metrics {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.metric-item {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-recycled-fiber);
  border-radius: var(--radius-sm);
}

.metric-label {
  color: var(--color-soft-graphite);
  opacity: 0.7;
  font-size: 0.8rem;
}

.metric-value {
  color: var(--color-lime-green);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Material Loop */
.material-diagram {
  position: relative;
  padding: var(--space-xl);
  background-color: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  margin-bottom: var(--space-xl);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.circular-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 600px;
  margin: 0 auto;
}

.timeline-item {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-md);
  background-color: var(--color-recycled-fiber);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
}

.timeline-item:hover {
  background-color: var(--color-matte-concrete);
  transform: translateX(10px);
}

.timeline-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--color-lime-green);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #fff;
  font-weight: 700;
}

.timeline-content {
  flex: 1;
}

.timeline-title {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.timeline-description {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Dashboard/Analytics */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.dashboard-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(227, 226, 221, 0.9) 100%);
  backdrop-filter: blur(10px);
  border: var(--border-width) solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.dashboard-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--color-lime-green);
}

.dashboard-label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-soft-graphite);
  opacity: 0.7;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dashboard-value {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-lime-green);
  margin-bottom: var(--space-xs);
}

.dashboard-unit {
  font-size: 1rem;
  color: var(--color-soft-graphite);
  opacity: 0.6;
}

.dashboard-description {
  font-size: 0.9rem;
  color: var(--color-soft-graphite);
  opacity: 0.8;
  margin-top: var(--space-sm);
}

/* Forms */
.form-container {
  max-width: 600px;
  margin: 0 auto;
  background-color: #fff;
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-medium);
}

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-soft-graphite);
  font-size: 0.95rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: var(--border-width) solid var(--color-matte-concrete);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all var(--transition-fast);
  background-color: var(--color-recycled-fiber);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-blueprint-blue);
  box-shadow: 0 0 0 3px rgba(95, 124, 154, 0.1);
}

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

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

.form-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  flex-shrink: 0;
}

.form-checkbox-label {
  font-size: 0.9rem;
  color: var(--color-soft-graphite);
  opacity: 0.8;
}

.form-submit {
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  background-color: var(--color-soft-graphite);
  color: var(--color-recycled-fiber);
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-steel);
}

.form-submit:hover {
  background-color: var(--color-wood-auburn);
  transform: translateY(-2px);
  box-shadow: var(--shadow-medium);
}

/* Contact Info */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.contact-card {
  background-color: #fff;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.contact-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: var(--color-blueprint-blue);
}

.contact-label {
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--color-soft-graphite);
}

.contact-value {
  color: var(--color-soft-graphite);
  opacity: 0.8;
}

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

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

/* Footer */
.site-footer {
  background-color: var(--color-soft-graphite);
  color: var(--color-recycled-fiber);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xxl);
}

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

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

.footer-title {
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: var(--color-recycled-fiber);
}

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

.footer-link {
  display: block;
  padding: var(--space-xs) 0;
  color: var(--color-recycled-fiber);
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-lime-green);
}

.footer-copyright {
  text-align: center;
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  border-top: var(--border-width) solid rgba(227, 226, 221, 0.2);
  opacity: 0.7;
  font-size: 0.9rem;
}

/* Privacy Popup */
.privacy-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(74, 74, 71, 0.9);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

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

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

.popup-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-soft-graphite);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.popup-close:hover {
  background-color: var(--color-recycled-fiber);
}

.popup-title {
  margin-bottom: var(--space-lg);
  color: var(--color-soft-graphite);
}

.popup-text {
  color: var(--color-soft-graphite);
  opacity: 0.9;
  line-height: 1.8;
}

/* Thank You Page */
.thank-you-container {
  text-align: center;
  max-width: 600px;
  margin: var(--space-xxl) auto;
  padding: var(--space-xxl);
  background-color: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-medium);
}

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

.thank-you-title {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-soft-graphite);
}

.thank-you-message {
  font-size: 1.1rem;
  color: var(--color-soft-graphite);
  opacity: 0.8;
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

/* 404 Page */
.error-container {
  text-align: center;
  max-width: 600px;
  margin: var(--space-xxl) auto;
  padding: var(--space-xxl);
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--color-soft-graphite);
  opacity: 0.3;
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
}

.error-title {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: var(--color-soft-graphite);
}

.error-message {
  font-size: 1.1rem;
  color: var(--color-soft-graphite);
  opacity: 0.8;
  margin-bottom: var(--space-xl);
}

/* Image Styles */
.content-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-soft);
}

.banner-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

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

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

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

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

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

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

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-xxl) var(--space-lg);
    box-shadow: var(--shadow-strong);
    transition: right var(--transition-base);
    z-index: 1000;
    gap: var(--space-md);
  }

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

  .burger-toggle {
    display: flex;
  }

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

  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }

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

  .main-content {
  }

  .content-section {
    padding: var(--space-lg) 0;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

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

  .form-container {
    padding: var(--space-lg);
  }

  .popup-content {
    padding: var(--space-lg);
    max-height: 90vh;
  }

  .process-metrics {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

@media (max-width: 320px) {
  html {
    font-size: 12px;
  }

  .header-container {
    padding: var(--space-sm);
  }

  .main-content {
  }

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn var(--transition-base) ease-out;
}

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

.pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Cut-path dotted lines effect */
.cut-path {
  position: relative;
  border: 2px dashed var(--color-matte-concrete);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

/* Exploded view effect */
.exploded-view {
  position: relative;
  overflow: hidden;
}

.exploded-view::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(142, 191, 91, 0.1) 50%, transparent 70%);
  pointer-events: none;
}}