/* ============================================
   INDUSTRIAL PRECISION - SPORTS STORAGE SYSTEM
   Technical Manual / Performance Dashboard Theme
   ============================================ */

:root {
  /* Base Colors - Industrial Palette */
  --color-bg-primary: #121212;
  --color-bg-secondary: #242526;
  --color-bg-tertiary: #1a1a1a;
  
  /* Accent Colors */
  --color-accent-primary: #FF3D00;
  --color-accent-secondary: #4682B4;
  --color-accent-tertiary: #2c6e49;
  
  /* Text Colors */
  --color-text-primary: #e0e0e0;
  --color-text-secondary: #b0b0b0;
  --color-text-muted: #808080;
  
  /* Typography */
  --font-primary: 'Inter', 'Roboto', sans-serif;
  --font-secondary: 'Space Mono', 'Courier New', monospace;
  
  /* Spacing System */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border & Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --border-width: 2px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(255, 61, 0, 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-fast);
}

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

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

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

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);
  color: var(--color-text-secondary);
}

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

.site-header {
  background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
  border-bottom: var(--border-width) solid var(--color-accent-secondary);
  padding: var(--space-md) var(--space-lg);
  position: relative;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

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

.brand-name {
  font-size: clamp(1rem, 1.4vw, 1.35rem);
  font-weight: 700;
  color: var(--color-accent-primary);
  font-family: var(--font-secondary);
}

.main-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent-primary);
  transition: width var(--transition-base);
}

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

.burger-toggle {
  display: none;
  background: transparent;
  border: var(--border-width) solid var(--color-accent-secondary);
  color: var(--color-text-primary);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  z-index: 1000001;
  font-size: 1.5rem;
  transition: all var(--transition-base);
  order: 999;
}

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

.burger-toggle.active {
  border-color: var(--color-accent-primary);
  background: var(--color-accent-primary);
  color: var(--color-bg-primary);
}

/* Mobile Navigation */
@media (max-width: 1023px) {
  .burger-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-md);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    border-bottom: var(--border-width) solid var(--color-accent-secondary);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  
  .main-nav.active {
    transform: translateX(0);
  }
  
  .nav-link {
    width: 100%;
    text-align: center;
    padding: var(--space-md);
    border: 1px solid var(--color-accent-secondary);
  }
  
  .nav-link:hover {
    border-color: var(--color-accent-primary);
    background: rgba(255, 61, 0, 0.1);
  }
}

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

main {
  min-height: calc(100vh - 200px);
}

/* ============================================
   HERO BANNER (Full-Width)
   ============================================ */

.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%);
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(18, 18, 18, 0.85) 0%,
    rgba(36, 37, 38, 0.75) 50%,
    rgba(18, 18, 18, 0.85) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--color-text-primary);
  text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

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

.content-section {
  padding: var(--space-3xl) var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.content-section > * {
  text-align: left;
}

.content-section .section-title {
  text-align: center;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-2xl);
  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: var(--color-accent-primary);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.section-item {
  background: var(--color-bg-secondary);
  border: var(--border-width) solid var(--color-accent-secondary);
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.section-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent-primary);
  transform: scaleY(0);
  transition: transform var(--transition-base);
}

.section-item:hover::before {
  transform: scaleY(1);
}

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

.item-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  border: 1px solid var(--color-accent-secondary);
}

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

.item-description {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

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

.two-column-image {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--color-accent-secondary);
}

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

/* ============================================
   STATUS INDICATORS
   ============================================ */

.status-indicator {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent-tertiary);
  margin-right: var(--space-sm);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(44, 110, 73, 0.7);
  }
  50% {
    opacity: 0.7;
    box-shadow: 0 0 0 8px rgba(44, 110, 73, 0);
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  background: transparent;
  border: var(--border-width) solid var(--color-accent-primary);
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  font-size: 0.9rem;
  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: var(--space-2xl) auto;
  background: var(--color-bg-secondary);
  padding: var(--space-2xl);
  border: var(--border-width) solid var(--color-accent-secondary);
  border-radius: var(--radius-md);
}

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

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md);
  background: var(--color-bg-primary);
  border: var(--border-width) solid var(--color-accent-secondary);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  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(255, 61, 0, 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;
}

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

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

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-2xl);
  margin-top: var(--space-2xl);
}

.product-card {
  background: var(--color-bg-secondary);
  border: var(--border-width) solid var(--color-accent-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.product-card:hover {
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-bottom: var(--border-width) solid var(--color-accent-secondary);
}

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

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

.product-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent-secondary);
  font-family: var(--font-secondary);
}

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

.map-container {
  width: 100%;
  height: 400px;
  border: var(--border-width) solid var(--color-accent-secondary);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: var(--space-xl);
}

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

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

.site-footer {
  background: var(--color-bg-secondary);
  border-top: var(--border-width) solid var(--color-accent-secondary);
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-3xl);
}

.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 {
  color: var(--color-accent-primary);
  margin-bottom: var(--space-md);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

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

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

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

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

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

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

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

.highlight {
  color: var(--color-accent-primary);
}

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

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

@media (max-width: 480px) {
  :root {
    font-size: 14px;
  }
  
  .header-container {
    padding: var(--space-sm);
  }
  
  .form-container {
    padding: var(--space-lg);
  }
}

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

.privacy-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-secondary);
  border-top: var(--border-width) solid var(--color-accent-primary);
  padding: var(--space-lg);
  z-index: 10000;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.5);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

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

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

.privacy-text {
  flex: 1;
  min-width: 250px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

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

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

.error-page {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.error-code {
  font-size: clamp(4rem, 10vw, 8rem);
  color: var(--color-accent-primary);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

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