/* ============================================
   STRUCTURAL VELOCITY - BICYCLE RESTORATION
   Futuristic Design System
   ============================================ */

:root {
  /* Color Palette */
  --color-titanium: #232326;
  --color-infrared: #FF003C;
  --color-anodized: #0066FF;
  --color-chrome: #FFFFFF;
  --color-dark: #0a0a0b;
  --color-light: #f5f5f5;
  
  /* Typography */
  --font-primary: 'Oxanium', 'Arial Narrow', sans-serif;
  --font-secondary: 'Krona One', 'Arial', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px rgba(255, 0, 60, 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-dark);
  color: var(--color-chrome);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(1.4rem, 5vw, 4rem);
  text-transform: uppercase;
}

h2 {
  font-size: clamp(1.2rem, 4vw, 3rem);
  text-transform: uppercase;
}

h3 {
  font-size: clamp(1rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--space-md);
  font-size: clamp(0.875rem, 2vw, 1.125rem);
}

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

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

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

.site-header {
  position: relative;
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(180deg, rgba(35, 35, 38, 0.95) 0%, rgba(10, 10, 11, 0.9) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
}

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

.brand-name {
  font-family: var(--font-secondary);
  font-size: clamp(0.9rem, 2vw, 1.35rem);
  font-weight: 700;
  color: var(--color-chrome);
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 25px;
  align-items: center;
  flex-wrap: wrap;
}

.nav-menu li {
  position: relative;
}

.nav-menu a {
  color: var(--color-chrome);
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  display: block;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-infrared);
  transition: width var(--transition-fast);
}

.nav-menu a:hover::after {
  width: 80%;
}

.burger-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-chrome);
  color: var(--color-chrome);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-size: 1.5rem;
  z-index: 1000001;
  transition: all var(--transition-fast);
  order: 999;
}

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

.burger-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* ============================================
   MOBILE NAVIGATION
   ============================================ */

@media (max-width: 1023px) {
  .burger-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: calc(100vh - var(--header-height));
    background: rgba(35, 35, 38, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-xl);
    gap: var(--space-md);
    transition: right var(--transition-base);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    width: 100%;
    padding: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }
}

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

.hero-banner {
  position: relative;
  width: 100vw;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
}

.banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.4;
}

.banner-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(35, 35, 38, 0.8) 0%, rgba(10, 10, 11, 0.9) 100%);
  z-index: 2;
}

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

.banner-title {
  font-size: clamp(1.5rem, 6vw, 5rem);
  margin-bottom: var(--space-lg);
  background: linear-gradient(135deg, var(--color-chrome) 0%, var(--color-anodized) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.banner-text {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  max-width: 800px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.9);
}

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

main {
  max-width: 100%;
  margin: 0 auto;
  padding: 0;
  width: 100%;
}

.content-section {
  margin-bottom: var(--space-xxl);
  padding: var(--space-xl) var(--space-lg);
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.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: 100px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-infrared), transparent);
}

/* ============================================
   GRID LAYOUTS
   ============================================ */

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

.grid-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  text-align: center;
}

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

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

.grid-item-title {
  color: var(--color-anodized);
  margin-bottom: var(--space-sm);
}

.grid-item-text {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  max-width: 100%;
  justify-items: center;
}

.product-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
  backdrop-filter: blur(10px);
}

.product-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--color-infrared);
  box-shadow: 0 10px 40px rgba(255, 0, 60, 0.2);
}

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

.product-title {
  font-size: 1.4rem;
  color: var(--color-chrome);
  margin-bottom: var(--space-sm);
}

.product-description {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
}

.product-price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-infrared);
  margin-top: var(--space-md);
}

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

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
  max-width: 100%;
  justify-items: center;
}

.contact-form {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-chrome);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: var(--color-chrome);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-anodized);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 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-group input[type="checkbox"] {
  margin-top: 4px;
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.checkbox-group label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
  cursor: pointer;
}

.btn-primary {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: linear-gradient(135deg, var(--color-infrared) 0%, #cc0029 100%);
  color: var(--color-chrome);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  width: 100%;
  margin-top: 10px;
}

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

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

.map-container {
  width: 100%;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--space-lg);
}

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

.contact-info {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
}

.contact-info-item {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-info-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contact-info-label {
  font-weight: 700;
  color: var(--color-anodized);
  text-transform: uppercase;
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.contact-info-value {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
}

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

.site-footer {
  background: linear-gradient(180deg, rgba(10, 10, 11, 0.95) 0%, rgba(35, 35, 38, 0.9) 100%);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  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 h3 {
  font-size: 1rem;
  color: var(--color-anodized);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

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

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

.footer-menu a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

.footer-copyright {
  text-align: center;
  padding-top: var(--space-lg);
  margin-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

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

.date {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  font-style: italic;
}

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

@media (max-width: 768px) {
  .contact-container {
    grid-template-columns: 1fr;
  }
  
  .hero-banner {
    min-height: 50vh;
  }
  
  .grid-container {
    grid-template-columns: 1fr;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  main {
    padding: var(--space-lg) var(--space-md);
  }
  
  .content-section {
    padding: var(--space-lg) 0;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .site-header {
    padding: var(--space-sm) var(--space-md);
  }
  
  .header-container {
    gap: var(--space-md);
  }
  
  .banner-content {
    padding: var(--space-lg) var(--space-md);
  }
  
  .contact-form,
  .contact-info {
    padding: var(--space-lg);
  }
}

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

.privacy-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(35, 35, 38, 0.98);
  backdrop-filter: blur(20px);
  border-top: 2px solid var(--color-infrared);
  padding: var(--space-lg);
  z-index: 10000;
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

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

.privacy-popup-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.privacy-popup-text {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.875rem;
  line-height: 1.6;
}

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

.btn-accept {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-infrared);
  color: var(--color-chrome);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.btn-accept:hover {
  background: #cc0029;
  transform: translateY(-2px);
}

.btn-decline {
  padding: var(--space-sm) var(--space-lg);
  background: transparent;
  color: var(--color-chrome);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.btn-decline:hover {
  border-color: var(--color-chrome);
  background: rgba(255, 255, 255, 0.05);
}

/* ============================================
   ERROR PAGE (404)
   ============================================ */

.error-container {
  min-height: 60vh;
  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);
  font-weight: 700;
  color: var(--color-infrared);
  margin-bottom: var(--space-md);
}

.error-message {
  font-size: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: var(--space-lg);
  color: var(--color-chrome);
}

.error-description {
  color: rgba(255, 255, 255, 0.7);
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

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

.thank-you-container {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl);
}

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

.thank-you-title {
  font-size: clamp(1.4rem, 5vw, 3.5rem);
  color: var(--color-chrome);
  margin-bottom: var(--space-md);
}

.thank-you-message {
  color: rgba(255, 255, 255, 0.8);
  max-width: 700px;
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}