/* ============================================================================
   AUTOMOTIVE APPS - GLOBAL STYLESHEET
   ============================================================================ */

/* DESIGN TOKENS */
:root {
  /* Colors */
  --color-primary: #5ba3f5;           /* Light Blue (brighter) */
  --color-primary-light: #e6f0ff;     /* Very light blue (lighter) */
  --color-primary-dark: #2563eb;      /* Medium Blue (not as dark) */
  --color-secondary: #ffffff;         /* White */
  --color-accent: #3b82f6;            /* Medium Blue (lighter accent) */
  --color-text: #1f2937;              /* Dark gray */
  --color-text-light: #6b7280;        /* Medium gray */
  --color-text-lighter: #9ca3af;      /* Light gray */
  --color-border: #e5e7eb;            /* Very light gray */
  --color-background: #f9fafb;        /* Off-white */
  --color-success: #10b981;           /* Green */
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Typography */
  --font-family-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  --font-family-mono: "Monaco", "Courier New", monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 1.875;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   RESET & NORMALIZATIONS
   ============================================================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-ui);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-secondary);
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
}

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

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

strong {
  font-weight: var(--font-weight-semibold);
}

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

nav.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(245, 250, 255, 0.95) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(219, 234, 254, 0.5);
  padding: var(--spacing-md) var(--spacing-lg);
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(59, 130, 246, 0.08);
}

.navbar-container {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 0;
}

.navbar-brand a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}



.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.navbar-nav a {
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
}

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

.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  cursor: pointer;
}

.nav-dropdown-toggle::after {
  content: "▼";
  font-size: 0.5rem;
  transition: transform var(--transition-fast);
}

.nav-dropdown.active .nav-dropdown-toggle::after {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  margin-top: var(--spacing-sm);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  pointer-events: none;
}

.nav-dropdown.active .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.nav-dropdown-menu li {
  border-bottom: 1px solid var(--color-border);
}

.nav-dropdown-menu li:last-child {
  border-bottom: none;
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  transition: background-color var(--transition-fast);
}

.nav-dropdown-menu a:hover {
  background-color: var(--color-background);
  color: var(--color-primary);
}

.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: var(--spacing-xs);
}

.nav-mobile-toggle span {
  width: 1.5rem;
  height: 2px;
  background-color: var(--color-text);
  transition: all var(--transition-fast);
}

/* ============================================================================
   LAYOUT UTILITIES
   ============================================================================ */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ============================================================================
   SPACING & SECTIONS
   ============================================================================ */

body {
  padding-top: 70px;
}

section {
  padding: var(--spacing-3xl) 0;
}

section.hero {
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-3xl);
}

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

.hero {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, rgba(59, 130, 246, 0.1) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

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

.hero h1 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero .subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-light);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-2xl);
  line-height: var(--line-height-relaxed);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  gap: var(--spacing-sm);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translateY(0);
}

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

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

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

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary-dark);
}

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

/* ============================================================================
   CARDS
   ============================================================================ */

.card {
  background-color: var(--color-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

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

.card-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, var(--color-primary-light), rgba(59, 130, 246, 0.2));
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-lighter);
  font-size: var(--font-size-sm);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-relaxed);
}

.card-footer {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* ============================================================================
   GRIDS
   ============================================================================ */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

.feature-item {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--color-secondary);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(91, 163, 245, 0.15), rgba(59, 130, 246, 0.1));
  border: 2px solid rgba(91, 163, 245, 0.3);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 1.8rem;
}

.feature-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.feature-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
}

/* ============================================================================
   SECTION HEADERS
   ============================================================================ */

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

.section-header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

footer {
  background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%);
  color: var(--color-secondary);
  padding: var(--spacing-3xl) 0;
  margin-top: var(--spacing-3xl);
}

footer .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-secondary);
}

.footer-bottom {
  text-align: center;
  margin-top: var(--spacing-lg);
}

.footer-bottom p {
  color: white;
  font-size: 0.65rem;
  opacity: 0.7;
  margin-bottom: 0;
}

/* ============================================================================
   IMAGES & MEDIA
   ============================================================================ */

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

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.image-grid img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
}

/* ============================================================================
   TESTIMONIALS
   ============================================================================ */

.testimonial {
  background-color: var(--color-background);
  border-left: 4px solid var(--color-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin: var(--spacing-lg) 0;
}

.testimonial-text {
  font-style: italic;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}

.testimonial-author {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

/* ============================================================================
   LEGAL CONTENT
   ============================================================================ */

.legal-content {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-2xl) 0;
}

.legal-content h2 {
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-accent);
  font-size: var(--font-size-2xl);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--spacing-md);
}

.legal-content h3 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
  font-size: var(--font-size-lg);
}

.legal-content p {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.legal-content ul,
.legal-content ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

.legal-content li {
  margin-bottom: var(--spacing-sm);
}

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

@media (max-width: 768px) {
  h1 {
    font-size: var(--font-size-3xl);
  }
  
  h2 {
    font-size: var(--font-size-2xl);
  }
  
  h3 {
    font-size: var(--font-size-xl);
  }
  
  .navbar-nav {
    gap: var(--spacing-lg);
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .hero .subtitle {
    font-size: var(--font-size-lg);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-actions .btn {
    width: 100%;
  }
  
  section {
    padding: var(--spacing-2xl) 0;
  }
  
  section.hero {
    padding-top: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
  }
  
  .section-header {
    margin-bottom: var(--spacing-2xl);
  }
  
  .feature-item {
    padding: var(--spacing-md);
  }
  
  footer .container {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  footer {
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
  }

  .footer-section h3 {
    margin-bottom: var(--spacing-sm);
  }

  .footer-section ul li {
    margin-bottom: var(--spacing-xs);
  }
  
  .nav-mobile-toggle {
    display: flex;
  }
  
  .navbar-nav {
    display: none;
  }
  
  .navbar-nav.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-secondary);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
  }
  
  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    max-height: none;
    overflow: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    background: transparent;
    margin-top: 0;
    padding: 0;
    pointer-events: auto;
  }

  .nav-dropdown-toggle {
    display: none;
  }

  .nav-dropdown::before {
    content: "Apps";
    display: block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text);
    text-align: center;
    padding: var(--spacing-sm) 0 var(--spacing-xs);
  }

  .nav-dropdown-menu li {
    border-bottom: none;
  }

  .nav-dropdown-menu a {
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--color-text-light);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    border-left: none;
    border-radius: 0;
    text-align: center;
    justify-content: center;
  }

  .nav-dropdown-menu a:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
  }
}

@media (max-width: 480px) {
  body {
    font-size: var(--font-size-sm);
  }
  
  h1 {
    font-size: var(--font-size-2xl);
  }
  
  h2 {
    font-size: var(--font-size-xl);
  }
  
  .container,
  .container-sm {
    padding: 0 var(--spacing-md);
  }
  
  section {
    padding: var(--spacing-xl) 0;
  }
  
  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-md);
  }
}

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

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

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

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

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.hidden {
  display: none !important;
}

/* ============================================================================
   SCROLL ANIMATIONS
   ============================================================================ */

.feature-item,
.card {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease, box-shadow var(--transition-base);
}

.feature-item.in-view,
.card.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay for grid children */
.feature-item:nth-child(2), .card:nth-child(2) { transition-delay: 0.1s; }
.feature-item:nth-child(3), .card:nth-child(3) { transition-delay: 0.2s; }
.feature-item:nth-child(4), .card:nth-child(4) { transition-delay: 0.3s; }
.feature-item:nth-child(5), .card:nth-child(5) { transition-delay: 0.4s; }
.feature-item:nth-child(6), .card:nth-child(6) { transition-delay: 0.5s; }

.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;
}

.screenshot-wrapper {
  max-width: 50%;
  margin: 0 auto;
}

@media (max-width: 768px) {
  .screenshot-wrapper {
    max-width: 100%;
  }
}

/* ============================================================================
   LIGHTBOX
   ============================================================================ */
.lightbox-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  cursor: zoom-out;
}
.lightbox-overlay.active {
  display: flex;
}
.lightbox-overlay img {
  max-width: 92vw;
  max-height: 90vh;
  border-radius: 0.75rem;
  box-shadow: 0 8px 48px rgba(0,0,0,0.5);
  cursor: default;
}
.lightbox-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  color: white;
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.15s;
  background: none;
  border: none;
  padding: 0;
}
.lightbox-close:hover { opacity: 1; }