/* ============================================
   KINETIC ENGINEERING DESIGN SYSTEM
   Bicycle Maintenance & Customization
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Michroma&family=JetBrains+Mono:wght@300;400;500;600&display=swap');

:root {
  /* Base Colors - Kinetic Engineering Palette */
  --color-frame: #0F0F12;
  --color-ignition: #FFDC00;
  --color-coolant: #F2F2F7;
  --color-accent: #1A1A1F;
  --color-text-primary: #F2F2F7;
  --color-text-secondary: #B0B0B5;
  --color-overlay: rgba(15, 15, 18, 0.85);
  --color-glass: rgba(242, 242, 247, 0.1);
  
  /* Typography */
  --font-speed: 'Michroma', sans-serif;
  --font-technical: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Borders & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --border-thin: 1px solid var(--color-coolant);
  --border-glow: 1px solid var(--color-ignition);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(255, 220, 0, 0.3);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Grid Pattern - CAD Style */
  --grid-pattern: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 19px,
    rgba(242, 242, 247, 0.03) 19px,
    rgba(242, 242, 247, 0.03) 20px
  ),
  repeating-linear-gradient(
    90deg,
    transparent,
    transparent 19px,
    rgba(242, 242, 247, 0.03) 19px,
    rgba(242, 242, 247, 0.03) 20px
  );
}

/* ============================================
   RESET & BASE
   ============================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-technical);
  font-weight: 400;
  color: var(--color-text-primary);
  background-color: var(--color-frame);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--grid-pattern);
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-speed);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-primary);
}

h1 {
  font-size: clamp(1.4rem, 5vw, 4rem);
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: clamp(1.2rem, 4vw, 2.5rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: clamp(1rem, 3vw, 1.75rem);
  margin-bottom: var(--space-md);
}

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

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

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

/* ============================================
   HEADER
   ============================================ */

.site-header {
  position: relative;
  z-index: 1000;
  background: var(--color-overlay);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-thin);
  padding: var(--space-md) var(--space-lg);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.brand-name {
  font-family: var(--font-speed);
  font-size: clamp(1rem, 1.5vw, 1.35rem);
  color: var(--color-ignition);
}

.main-navigation {
  display: flex;
  align-items: center;
  list-style: none;
}

.nav-link {
  font-family: var(--font-technical);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid transparent;
  transition: all var(--transition-base);
}

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

/* Burger Menu */
.burger-toggle {
  display: none;
  background: transparent;
  border: var(--border-thin);
  padding: var(--space-sm);
  cursor: pointer;
  color: var(--color-coolant);
  font-size: 1.5rem;
  transition: all var(--transition-base);
  order: 999;
  z-index: 1000001;
}

.burger-toggle:hover {
  border-color: var(--color-ignition);
  color: var(--color-ignition);
}

.burger-icon {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: all var(--transition-base);
}

.burger-icon::before,
.burger-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: all var(--transition-base);
}

.burger-icon::before {
  top: -8px;
}

.burger-icon::after {
  bottom: -8px;
}

.burger-toggle.active .burger-icon {
  background: transparent;
}

.burger-toggle.active .burger-icon::before {
  transform: rotate(45deg);
  top: 0;
}

.burger-toggle.active .burger-icon::after {
  transform: rotate(-45deg);
  bottom: 0;
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--color-overlay);
  backdrop-filter: blur(10px);
  border-bottom: var(--border-thin);
  padding: var(--space-lg);
  flex-direction: column;
  gap: var(--space-md);
  z-index: 999;
}

.mobile-menu.active {
  display: flex;
}

.mobile-nav-link {
  font-family: var(--font-technical);
  font-size: 1rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-md);
  border: var(--border-thin);
  text-align: center;
  transition: all var(--transition-base);
}

.mobile-nav-link:hover {
  color: var(--color-ignition);
  border-color: var(--color-ignition);
}

/* ============================================
   MAIN CONTENT
   ============================================ */

main {
  position: relative;
  z-index: 1;
}

/* ============================================
   FULL-WIDTH BANNER
   ============================================ */

.hero-banner {
  width: 100vw;
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.banner-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0.4;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(15, 15, 18, 0.7) 0%,
    rgba(15, 15, 18, 0.9) 100%
  );
  z-index: 1;
}

.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
  max-width: 1200px;
  margin: 0 auto;
}

.banner-title {
  font-family: var(--font-speed);
  font-size: clamp(1.5rem, 6vw, 5rem);
  color: var(--color-ignition);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
  text-shadow: 0 0 30px rgba(255, 220, 0, 0.5);
}

.banner-subtitle {
  font-family: var(--font-technical);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-coolant);
  max-width: 800px;
  margin: 0 auto;
}

/* ============================================
   SECTIONS
   ============================================ */

.content-section {
  padding: var(--space-xxl) var(--space-lg);
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-title {
  font-size: 1rem;
  text-align: center;
  margin-bottom: var(--space-xl);
  color: var(--color-ignition);
  width: 100%;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  width: 100%;
  max-width: 1200px;
  justify-items: center;
}

.grid-item {
  background: var(--color-accent);
  border: var(--border-thin);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  text-align: center;
}

.grid-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 220, 0, 0.1),
    transparent
  );
  transition: left var(--transition-slow);
}

.grid-item:hover::before {
  left: 100%;
}

.grid-item:hover {
  border-color: var(--color-ignition);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.grid-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  border: var(--border-thin);
  max-width: 100%;
}

.grid-title {
  font-family: var(--font-speed);
  font-size: 1.2rem;
  color: var(--color-ignition);
  margin-bottom: var(--space-sm);
}

.grid-text {
  font-family: var(--font-technical);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-accent);
  padding: var(--space-xl);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
}

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

.form-label {
  display: block;
  font-family: var(--font-technical);
  font-size: 0.9rem;
  color: var(--color-coolant);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-ignition);
  box-shadow: var(--shadow-glow);
}

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

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

.checkbox-input {
  margin-top: 4px;
  accent-color: var(--color-ignition);
}

.checkbox-label {
  font-family: var(--font-technical);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.submit-button {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: transparent;
  border: var(--border-glow);
  color: var(--color-ignition);
  font-family: var(--font-speed);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-base);
  border-radius: var(--radius-sm);
  margin-top: 10px;
}

.submit-button:hover {
  background: var(--color-ignition);
  color: var(--color-frame);
  box-shadow: var(--shadow-glow);
}

/* ============================================
   GOOGLE MAPS
   ============================================ */

.map-container {
  width: 100%;
  height: 400px;
  margin: var(--space-xl) 0;
  border: var(--border-thin);
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

/* ============================================
   PRODUCTS
   ============================================ */

.product-card {
  background: var(--color-accent);
  border: var(--border-thin);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: var(--color-ignition);
  box-shadow: var(--shadow-glow);
}

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

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

.product-description {
  font-family: var(--font-technical);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.product-price {
  font-family: var(--font-speed);
  font-size: 1.75rem;
  color: var(--color-coolant);
  margin-top: var(--space-md);
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-accent);
  border-top: var(--border-thin);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-xxl);
}

.footer-container {
  max-width: 1400px;
  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-md);
}

.footer-title {
  font-family: var(--font-speed);
  font-size: 1rem;
  color: var(--color-ignition);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.footer-link {
  font-family: var(--font-technical);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition-base);
}

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

.footer-text {
  font-family: var(--font-technical);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-copyright {
  text-align: center;
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  border-top: var(--border-thin);
  font-family: var(--font-technical);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

/* ============================================
   PRIVACY POPUP
   ============================================ */

.privacy-popup {
  display: none;
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  max-width: 400px;
  background: var(--color-accent);
  border: var(--border-glow);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  z-index: 10000;
  box-shadow: var(--shadow-lg);
}

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

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

.popup-text {
  font-family: var(--font-technical);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

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

.popup-button {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: var(--border-thin);
  background: transparent;
  color: var(--color-text-primary);
  font-family: var(--font-technical);
  font-size: 0.85rem;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-base);
  border-radius: var(--radius-sm);
}

.popup-button.accept {
  border-color: var(--color-ignition);
  color: var(--color-ignition);
}

.popup-button.accept:hover {
  background: var(--color-ignition);
  color: var(--color-frame);
}

/* ============================================
   LEGAL PAGES
   ============================================ */

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.legal-title {
  font-family: var(--font-speed);
  font-size: clamp(1rem, 4vw, 2.5rem);
  color: var(--color-ignition);
  margin-bottom: var(--space-lg);
  text-align: center;
}

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

.legal-section-title {
  font-family: var(--font-speed);
  font-size: 1.5rem;
  color: var(--color-coolant);
  margin-bottom: var(--space-md);
  margin-top: var(--space-lg);
}

.legal-text {
  font-family: var(--font-technical);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.legal-date {
  font-family: var(--font-technical);
  font-size: 0.9rem;
  color: var(--color-ignition);
  text-align: center;
  margin-top: var(--space-xl);
  padding: var(--space-md);
  border: var(--border-thin);
  border-radius: var(--radius-sm);
}

/* ============================================
   THANK YOU PAGE
   ============================================ */

.thank-you-container {
  max-width: 800px;
  margin: var(--space-xxl) auto;
  padding: var(--space-xl);
  text-align: center;
  background: var(--color-accent);
  border: var(--border-glow);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glow);
}

.thank-you-title {
  font-family: var(--font-speed);
  font-size: clamp(2rem, 5vw, 3rem);
  color: var(--color-ignition);
  margin-bottom: var(--space-lg);
}

.thank-you-text {
  font-family: var(--font-technical);
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

/* ============================================
   404 PAGE
   ============================================ */

.error-container {
  max-width: 800px;
  margin: var(--space-xxl) auto;
  padding: var(--space-xl);
  text-align: center;
}

.error-code {
  font-family: var(--font-speed);
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-ignition);
  margin-bottom: var(--space-lg);
}

.error-title {
  font-family: var(--font-speed);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--color-coolant);
  margin-bottom: var(--space-md);
}

.error-text {
  font-family: var(--font-technical);
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.error-link {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  border: var(--border-glow);
  color: var(--color-ignition);
  font-family: var(--font-speed);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition-base);
  border-radius: var(--radius-sm);
}

.error-link:hover {
  background: var(--color-ignition);
  color: var(--color-frame);
  box-shadow: var(--shadow-glow);
}

/* ============================================
   INTERACTIVE FEATURES
   ============================================ */

.simulator-container {
  max-width: 1200px;
  margin: var(--space-xl) auto;
  padding: var(--space-xl);
  background: var(--color-accent);
  border: var(--border-thin);
  border-radius: var(--radius-lg);
}

.scanner-cursor {
  cursor: crosshair;
}

.xray-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(255, 220, 0, 0.2) 0%,
    transparent 50%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .xray-overlay {
  opacity: 1;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1023px) {
  .main-navigation {
    display: none;
  }
  
  .burger-toggle {
    display: block;
  }
  
  .header-container {
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  .content-section {
    padding: var(--space-xl) var(--space-md);
  }
  
  .section-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-container {
    grid-template-columns: 1fr;
  }
  
  .privacy-popup {
    right: var(--space-md);
    left: var(--space-md);
    max-width: none;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .banner-content {
    padding: var(--space-lg);
  }
  
  .contact-form {
    padding: var(--space-lg);
  }
}

@media (max-width: 320px) {
  html {
    font-size: 12px;
  }
  
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }
  
  .content-section {
    padding: var(--space-lg) var(--space-sm);
  }
}