/* CSS Variables - Heritage-inspired & Eco-modern Palette */
:root {
  --color-canalhouse-umber: #5A4635;
  --color-eco-linnen-beige: #DCD3C2;
  --color-clay-indigo-blue: #3D4F63;
  --color-reed-soft-green: #AABF8E;
  --color-frosted-northlight-white: #F9FAF7;
  
  --color-primary: var(--color-canalhouse-umber);
  --color-secondary: var(--color-eco-linnen-beige);
  --color-accent: var(--color-clay-indigo-blue);
  --color-natural: var(--color-reed-soft-green);
  --color-background: var(--color-frosted-northlight-white);
  
  --font-primary: 'Poppins', sans-serif;
  --font-heading: 'Playfair Display', 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-sm: 0 2px 4px rgba(90, 70, 53, 0.1);
  --shadow-md: 0 4px 8px rgba(90, 70, 53, 0.15);
  --shadow-lg: 0 8px 16px rgba(90, 70, 53, 0.2);
  
  --max-width: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--color-primary);
  background-color: var(--color-background);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  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);
}

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

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

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

/* Header */
.site-header {
  background-color: var(--color-background);
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-sm);
  position: relative;
  z-index: 1000;
}

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

.header-container > nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.brand-text {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  text-decoration: none;
  display: block;
  white-space: nowrap;
  flex-shrink: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-sm);
  align-items: center;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-menu li {
  margin: 0;
  padding: 0;
}

.nav-menu li a {
  color: var(--color-primary);
  font-weight: 500;
  padding: var(--space-sm) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
  display: block;
  white-space: nowrap;
  font-size: 0.9rem;
}

.nav-menu li a:hover {
  background-color: var(--color-secondary);
}

.burger-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-primary);
  font-size: 1.5rem;
  z-index: 1001;
  flex-shrink: 0;
  order: 3;
}

/* Desktop Navigation - меню видимо */
@media (min-width: 769px) {
  .nav-menu {
    display: flex;
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: transparent;
    box-shadow: none;
    flex-direction: row;
    padding: 0;
  }
  
  .burger-toggle {
    display: none;
  }
}

/* Tablet Navigation */
@media (max-width: 1024px) {
  .nav-menu {
    gap: var(--space-xs);
  }
  
  .nav-menu li a {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.85rem;
  }
  
  .brand-text {
    font-size: clamp(0.9rem, 2vw, 1.3rem);
    letter-spacing: 1px;
  }
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .burger-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 50px;
    left: 0;
    right: 0;
    background-color: var(--color-background);
    flex-direction: column;
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 999;
    gap: var(--space-sm);
    align-items: stretch;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu li a {
    width: 100%;
    text-align: center;
    padding: var(--space-md);
    font-size: 1rem;
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .brand-text {
    font-size: clamp(0.85rem, 3vw, 1.2rem);
  }
}

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

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

/* Hero Section */
.hero-section {
  padding: var(--space-xxl) 0;
  text-align: center;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(90, 70, 53, 0.7) 0%, rgba(61, 79, 99, 0.6) 100%);
  z-index: 1;
}

.hero-section .container {
  position: relative;
  z-index: 2;
}

.hero-title {
  margin-bottom: var(--space-lg);
  color: var(--color-background);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-background);
  max-width: 800px;
  margin: 0 auto var(--space-xl);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-section .btn {
  background-color: var(--color-primary);
  color: var(--color-background);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.hero-section .btn:hover {
  background-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

/* Section Styles */
.content-section {
  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-natural);
}

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

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

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

/* Cards */
.card {
  background-color: var(--color-background);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  overflow: hidden;
}

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

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

.card-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.card-text {
  color: var(--color-accent);
  font-size: 0.95rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-primary);
  color: var(--color-background);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  font-size: 1rem;
}

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

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

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

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

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

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 500;
  color: var(--color-primary);
}

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

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

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

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

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

.checkbox-label {
  font-size: 0.9rem;
  color: var(--color-accent);
}

/* Contact Section */
.contact-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-lg);
}

.contact-info {
  background-color: var(--color-secondary);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
}

.contact-item {
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-top: var(--space-xs);
}

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

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

/* Footer */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-background);
  padding: var(--space-xl) 0 var(--space-md);
  margin-top: var(--space-xxl);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.footer-section h3 {
  color: var(--color-background);
  margin-bottom: var(--space-md);
  font-size: 1.1rem;
}

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

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

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

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

.footer-bottom {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 0.9rem;
}

/* Privacy Popup */
.privacy-popup {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(90, 70, 53, 0.8);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

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

.popup-content {
  background-color: var(--color-background);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  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-primary);
  padding: var(--space-sm);
  line-height: 1;
}

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

.popup-text {
  color: var(--color-accent);
  line-height: 1.8;
}

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

/* Image Gallery */
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
  margin: var(--space-lg) 0;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.gallery-item:hover {
  transform: scale(1.02);
}

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

/* Process Steps */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

.process-step {
  text-align: center;
  padding: var(--space-lg);
  background-color: var(--color-secondary);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast);
}

.process-step:hover {
  transform: translateY(-5px);
}

.step-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

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

/* Material Cards */
.material-card {
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-secondary) 100%);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-natural);
}

.material-rating {
  display: flex;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.rating-bar {
  height: 8px;
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex: 1;
}

.rating-fill {
  height: 100%;
  background-color: var(--color-natural);
  transition: width var(--transition-slow);
}

/* Heritage Archive */
.heritage-item {
  background-color: var(--color-background);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--color-accent);
}

.heritage-title {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.heritage-description {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.modern-translation {
  background-color: var(--color-secondary);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
  border-left: 3px solid var(--color-natural);
}

/* Thank You Page */
.thank-you-section {
  text-align: center;
  padding: var(--space-xxl) 0;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

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

.thank-you-title {
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.thank-you-message {
  max-width: 600px;
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-bottom: var(--space-xl);
}

/* 404 Page */
.error-section {
  text-align: center;
  padding: var(--space-xxl) 0;
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.error-code {
  font-size: 6rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --space-xl: 2rem;
    --space-xxl: 3rem;
  }
  
  .grid-two,
  .grid-three,
  .grid-four {
    grid-template-columns: 1fr;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .hero-section {
    padding: var(--space-lg) 0;
  }
  
  .content-section {
    padding: var(--space-lg) 0;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .container {
    padding: 0 var(--space-sm);
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .popup-content {
    padding: var(--space-lg);
  }
}

/* Date Styling */
.date {
  text-align: center;
  margin-bottom: var(--space-xl);
  font-style: italic;
  color: var(--color-accent);
}

/* 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);
}

.hidden {
  display: none;
}

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

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

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus Styles */
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}