/* ============================================
   CSS Variables - Eco-Editorial Theme
   ============================================ */
:root {
  /* Colors - Natural Fiber Palette */
  --color-primary: #2c6e49;
  --color-secondary: #f4f1de;
  --color-linen: #f3efea;
  --color-olive: #8b9770;
  --color-terracotta: #c07856;
  --color-beige: #d1c7b4;
  --color-forest: #324233;
  --color-text: #2c2c2c;
  --color-text-light: #666;
  --color-white: #ffffff;
  --color-border: #e8e5e0;
  
  /* Typography */
  --font-primary: 'Poppins', sans-serif;
  --font-heading: 'Playfair Display', serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-padding: 1.5rem;
  
  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --border-width: 1px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-soft: 0 2px 8px rgba(50, 66, 51, 0.08);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Z-index layers */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-modal: 1050;
  --z-popup: 1060;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text);
  background-color: var(--color-linen);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: var(--line-height-tight);
  color: var(--color-forest);
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(2rem, 5vw, var(--font-size-4xl));
}

h2 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-3xl));
}

h3 {
  font-size: clamp(1.25rem, 3vw, var(--font-size-2xl));
}

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

/* ============================================
   Container & Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-sm {
  padding: var(--space-xl) 0;
}

/* ============================================
   Header
   ============================================ */
.site-header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-soft);
  position: relative;
  z-index: var(--z-sticky);
  transition: transform var(--transition-base);
}

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

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

.brand-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  color: var(--color-forest);
  font-weight: 500;
  letter-spacing: -0.02em;
}

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

.nav-link {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--space-sm) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-olive);
  transition: width var(--transition-base);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-olive);
}

.burger-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 24px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.burger-line {
  width: 100%;
  height: 2px;
  background-color: var(--color-forest);
  transition: all var(--transition-base);
}

.burger-toggle.active .burger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.burger-toggle.active .burger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   Mobile Navigation
   ============================================ */
@media (max-width: 768px) {
  .burger-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 50px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    padding: var(--space-lg);
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: var(--z-dropdown);
    gap: var(--space-md);
  }
  
  .nav-menu.active {
    transform: translateX(0);
  }
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--container-padding);
  background: linear-gradient(135deg, var(--color-linen) 0%, var(--color-beige) 100%);
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  z-index: 1;
  animation: fadeInUp 0.8s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: var(--space-lg);
  color: var(--color-forest);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
  line-height: var(--line-height-relaxed);
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
  z-index: 0;
}

/* ============================================
   Banner Section
   ============================================ */
.banner-section {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  margin: var(--space-xl) 0;
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.banner-section:hover .banner-image {
  transform: scale(1.05);
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(50, 66, 51, 0.3), rgba(50, 66, 51, 0.6));
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-text {
  color: var(--color-white);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-family: var(--font-heading);
  text-align: center;
  padding: var(--space-lg);
  z-index: 1;
}

/* ============================================
   Content Sections
   ============================================ */
.content-section {
  padding: var(--space-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  color: var(--color-forest);
}

.section-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
  color: var(--color-text-light);
  font-size: var(--font-size-lg);
}

/* ============================================
   Grid Layouts
   ============================================ */
.grid-two {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.grid-four {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

@media (max-width: 968px) {
  .grid-three {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-four {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Cards
   ============================================ */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  overflow: hidden;
}

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

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-forest);
}

.card-text {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}

.card-price {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-terracotta);
  margin-top: var(--space-md);
}

/* ============================================
   Image Gallery
   ============================================ */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  transition: opacity var(--transition-base), transform var(--transition-base);
  opacity: 1;
  transform: scale(1);
}

.gallery-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.gallery-item:hover .gallery-image {
  transform: scale(1.1);
  opacity: 0.9;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-olive);
  color: var(--color-white);
}

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

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

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

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-olive);
  color: var(--color-olive);
}

.btn-outline:hover {
  background-color: var(--color-olive);
  color: var(--color-white);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-forest);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  background-color: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-olive);
  box-shadow: 0 0 0 3px rgba(139, 151, 112, 0.1);
}

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

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

.checkbox-input {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-olive);
}

.checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-normal);
}

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

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

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background-color: var(--color-forest);
  color: var(--color-white);
  padding: var(--space-xl) 0 var(--space-lg);
  margin-top: var(--space-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-section-title {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  color: var(--color-beige);
}

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

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

.footer-link {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
}

.footer-link:hover {
  color: var(--color-white);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   Privacy Popup
   ============================================ */
.privacy-popup {
  position: fixed;
  bottom: var(--space-lg);
  left: var(--space-lg);
  right: var(--space-lg);
  max-width: 500px;
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-popup);
  transform: translateY(150%);
  transition: transform var(--transition-base);
}

.privacy-popup.show {
  transform: translateY(0);
}

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

.popup-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-forest);
}

.popup-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.popup-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.popup-btn {
  flex: 1;
  min-width: 120px;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
}

/* ============================================
   Special Features
   ============================================ */
.fiber-panel {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-olive);
  margin: var(--space-lg) 0;
}

.panel-title {
  font-size: var(--font-size-lg);
  color: var(--color-forest);
  margin-bottom: var(--space-md);
}

.panel-list {
  list-style: none;
  margin-top: var(--space-md);
}

.panel-item {
  padding: var(--space-sm) 0;
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--color-border);
}

.panel-item:last-child {
  border-bottom: none;
}

.material-preview {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background-color: var(--color-white);
  border-radius: var(--radius-md);
  margin: var(--space-sm) 0;
}

.material-icon {
  width: 40px;
  height: 40px;
  background-color: var(--color-beige);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.material-text {
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.impact-meter {
  background: linear-gradient(135deg, var(--color-olive), var(--color-forest));
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  color: var(--color-white);
  text-align: center;
  margin: var(--space-xl) 0;
}

.meter-value {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  margin: var(--space-md) 0;
}

.meter-label {
  font-size: var(--font-size-sm);
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ============================================
   Filter Buttons (Lookbook)
   ============================================ */
.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin: var(--space-xl) 0;
}

.filter-btn {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-base);
}

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

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn 0.6s ease;
}

.slide-up {
  animation: fadeInUp 0.8s ease;
}

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

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

.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);
}

.hidden {
  display: none;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 640px) {
  :root {
    --container-padding: 1rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
  }
  
  .hero-section {
    min-height: 50vh;
  }
  
  .banner-section {
    height: 300px;
  }
  
  .privacy-popup {
    left: var(--space-md);
    right: var(--space-md);
    bottom: var(--space-md);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 320px) {
  :root {
    --font-size-base: 0.875rem;
    --space-md: 0.75rem;
    --space-lg: 1.5rem;
  }
  
  .btn {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-xs);
  }
}

/* ============================================
   404 Page Styles
   ============================================ */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--container-padding);
}

.error-code {
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-olive);
  font-weight: 300;
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: var(--font-size-xl);
  color: var(--color-forest);
  margin-bottom: var(--space-lg);
}

.error-description {
  color: var(--color-text-light);
  max-width: 500px;
  margin: 0 auto var(--space-xl);
}