/* ============================================
   CSS Variables - Futuristic Soundproofing Theme
   ============================================ */
:root {
  /* Colors */
  --color-bg-primary: #0D0D0F;
  --color-bg-secondary: #2A2A2E;
  --color-accent-primary: #CD7F32;
  --color-accent-secondary: #B57EDC;
  --color-text-primary: #F4F1DE;
  --color-text-secondary: #C4C4C4;
  --color-border: rgba(205, 127, 50, 0.2);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Space Grotesk', sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-xxl: 8rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Shadows */
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-inset: inset 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(205, 127, 50, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Layout */
  --max-width: 1400px;
  --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-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

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

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

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

h2 {
  font-size: clamp(1.2rem, 3vw, 3rem);
}

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

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

/* ============================================
   Header
   ============================================ */
.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: rgba(13, 13, 15, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

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

.brand-text {
  font-family: var(--font-secondary);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 600;
  color: var(--color-text-primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent-primary);
  background: rgba(205, 127, 50, 0.1);
}

/* Burger Menu Button */
.burger-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  z-index: 1000001;
  padding: var(--space-xs);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
}

.burger-toggle:hover {
  border-color: var(--color-accent-primary);
  background: rgba(205, 127, 50, 0.1);
}

.burger-line {
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.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);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-toggle {
    display: flex;
    order: 999;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(13, 13, 15, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--color-border);
    z-index: 999;
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    text-align: center;
  }
}

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

/* ============================================
   Full-Width Banner Sections
   ============================================ */
.banner-section {
  position: relative;
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-xxl) var(--space-lg);
}

.banner-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.3;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(13, 13, 15, 0.85) 0%,
    rgba(13, 13, 15, 0.75) 50%,
    rgba(13, 13, 15, 0.85) 100%
  );
  z-index: 2;
}

.banner-content {
  position: relative;
  z-index: 3;
  max-width: var(--max-width);
  width: 100%;
  text-align: center;
  padding: var(--space-lg);
}

.banner-title {
  font-size: clamp(1.5rem, 6vw, 5rem);
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--color-text-primary), var(--color-accent-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.banner-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  max-width: 800px;
  margin: 0 auto;
  color: var(--color-text-secondary);
}

/* ============================================
   Content Sections
   ============================================ */
.content-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xxl) var(--space-lg);
  text-align: center;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-xl);
  font-size: clamp(1.4rem, 4vw, 3.5rem);
  color: var(--color-text-primary);
}

.section-subtitle {
  text-align: center;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

/* Grid Layouts */
.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.grid-item {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  text-align: center;
}

.grid-item:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-glow);
}

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

.grid-title {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
  color: var(--color-accent-primary);
}

.grid-text {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: var(--space-xl);
  align-items: center;
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.two-column-image {
  width: 100%;
  max-width: 500px;
  height: 350px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  margin: 0 auto;
}

.two-column-content {
  padding: var(--space-lg);
  text-align: left;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  border: 2px solid var(--color-accent-primary);
  border-radius: var(--radius-md);
  color: var(--color-accent-primary);
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition-base);
  cursor: pointer;
  box-shadow: var(--shadow-inset);
  margin-top: 10px;
}

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

.btn-secondary {
  border-color: var(--color-accent-secondary);
  color: var(--color-accent-secondary);
}

.btn-secondary:hover {
  background: var(--color-accent-secondary);
  color: var(--color-bg-primary);
}

/* ============================================
   Forms
   ============================================ */
.form-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--space-xl);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

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

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

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

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(205, 127, 50, 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 {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-accent-primary);
}

.checkbox-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ============================================
   Products
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-md);
}

.product-card {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-soft);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-glow);
}

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

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

.product-title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  color: var(--color-accent-primary);
}

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.8;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-top: var(--space-md);
}

/* ============================================
   Maps
   ============================================ */
.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: var(--space-xl);
  border: 1px solid var(--color-border);
}

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

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  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 {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-title {
  font-size: 1.1rem;
  color: var(--color-accent-primary);
  margin-bottom: var(--space-sm);
}

.footer-link {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-base);
}

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

.footer-text {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-bottom {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

/* ============================================
   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);
}

.date {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-style: italic;
}

/* ============================================
   Privacy Popup
   ============================================ */
.privacy-popup {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-soft);
  z-index: 10000;
  transform: translateY(150%);
  transition: transform var(--transition-slow);
}

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

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

.privacy-popup-title {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
  color: var(--color-accent-primary);
}

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

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

/* ============================================
   Error Page
   ============================================ */
.error-container {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
}

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

.error-message {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: var(--space-lg);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  :root {
    --space-xl: 3rem;
    --space-xxl: 4rem;
  }
  
  .banner-section {
    min-height: 50vh;
    padding: var(--space-xl) var(--space-md);
  }
  
  .content-section {
    padding: var(--space-xl) var(--space-md);
  }
  
  .two-column {
    gap: var(--space-lg);
  }
}

@media (min-width: 600px) {
  .two-column {
    grid-template-columns: repeat(2, minmax(240px, 1fr));
  }

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .privacy-popup {
    right: var(--space-sm);
    left: var(--space-sm);
    max-width: none;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }
  
  .banner-section {
    padding: var(--space-lg) var(--space-sm);
  }
  
  .content-section {
    padding: var(--space-lg) var(--space-sm);
  }
  
  .form-container {
    padding: var(--space-md);
  }
}

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

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

/* Waveform Border Effect */
.waveform-border {
  position: relative;
  overflow: hidden;
}

.waveform-border::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%,
    var(--color-accent-primary) 25%,
    transparent 50%,
    var(--color-accent-primary) 75%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: wave 3s linear infinite;
}

@keyframes wave {
  0% {
    background-position: 0% 0%;
  }
  100% {
    background-position: 200% 0%;
  }
}