/* BMW Pitch Deck - Modern CSS Framework */

/* CSS Reset & Variables */
:root {
  /* BMW Brand Colors */
  --bmw-blue: #0066cc;
  --bmw-dark-blue: #003d7a;
  --bmw-light-blue: #4d94ff;
  --bmw-silver: #c0c0c0;
  --bmw-dark-gray: #1a1a1a;
  --bmw-light-gray: #f5f5f5;
  
  /* Modern Color Palette */
  --primary: var(--bmw-blue);
  --primary-dark: var(--bmw-dark-blue);
  --primary-light: var(--bmw-light-blue);
  --secondary: var(--bmw-silver);
  --accent: #ff6b35;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  
  /* Neutral Colors */
  --white: #ffffff;
  --black: #000000;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-secondary: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
}

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

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

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 600;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
  margin-bottom: var(--space-4);
  color: var(--gray-600);
}

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

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

/* Utility Classes */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-secondary);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary);
}

.logo-icon {
  width: 32px;
  height: 32px;
}

.nav-menu {
  display: flex;
  gap: var(--space-8);
}

.nav-link {
  font-weight: 500;
  color: var(--gray-700);
  transition: color var(--transition-fast);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  cursor: pointer;
  color: var(--gray-700);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--primary-dark) 100%);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-6);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-300);
  margin-bottom: var(--space-10);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--white);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-primary);
  font-weight: 500;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow);
}

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

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

/* Section Styling */
section {
  padding: var(--space-24) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--gray-100);
  color: var(--primary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
}

/* Innovation Section */
.innovation {
  background: var(--gray-50);
}

.innovation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}

.innovation-card {
  background: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.innovation-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.innovation-card.featured {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  grid-column: span 2;
}

.innovation-card.featured .card-icon {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
}

.innovation-card.featured h3,
.innovation-card.featured p {
  color: var(--white);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  color: var(--primary);
}

.innovation-card h3 {
  margin-bottom: var(--space-3);
  font-size: 1.5rem;
}

.innovation-card p {
  margin-bottom: var(--space-4);
}

.card-stats {
  display: flex;
  gap: var(--space-6);
}

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

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
}

.stat-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Market Section */
.market-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.market-highlights {
  margin-top: var(--space-8);
}

.highlight-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.highlight-icon {
  width: 50px;
  height: 50px;
  background: var(--primary);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
}

.highlight-content h4 {
  margin-bottom: var(--space-2);
  color: var(--gray-900);
}

.highlight-content p {
  color: var(--gray-600);
  margin: 0;
}

.market-chart {
  background: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
}

.chart-growth {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--success);
  font-weight: 600;
}

.chart-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.chart-bar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.bar-label {
  width: 80px;
  font-weight: 500;
  color: var(--gray-700);
}

.bar-fill {
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: var(--space-3);
  color: var(--white);
  font-weight: 600;
  position: relative;
  overflow: hidden;
}

.bmw-bar {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  width: 100%;
  animation: fillBar 2s ease-out;
}

.competitor-bar {
  background: linear-gradient(90deg, var(--gray-400), var(--gray-500));
  width: 76%;
  animation: fillBar 2s ease-out 0.5s both;
}

@keyframes fillBar {
  from { width: 0; }
}

.bar-value {
  font-weight: 600;
  color: var(--gray-700);
  min-width: 80px;
  text-align: right;
}

/* Future Section */
.future {
  background: var(--gray-900);
  color: var(--white);
}

.future .section-badge {
  background: rgba(255, 255, 255, 0.1);
  color: var(--primary-light);
}

.future .section-title,
.future .section-subtitle {
  color: var(--white);
}

.timeline {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary);
}

.timeline-item {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-12);
  position: relative;
}

.timeline-marker {
  width: 60px;
  height: 60px;
  background: var(--primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.timeline-content {
  flex: 1;
  padding-top: var(--space-2);
}

.timeline-year {
  font-size: 0.875rem;
  color: var(--primary-light);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.timeline-content h4 {
  color: var(--white);
  margin-bottom: var(--space-3);
}

.timeline-content p {
  color: var(--gray-300);
  margin: 0;
}

/* Contact Section */
.contact {
  background: var(--gray-50);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
}

.contact-info h2 {
  margin-bottom: var(--space-4);
}

.contact-info p {
  font-size: 1.125rem;
  margin-bottom: var(--space-8);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--gray-700);
}

.contact-item i {
  color: var(--primary);
}

/* Form Styling */
.form {
  background: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  color: var(--gray-700);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-secondary);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-light);
  margin-bottom: var(--space-4);
}

.footer-brand p {
  color: var(--gray-400);
  margin: 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: var(--space-4);
  font-size: 1.125rem;
}

.footer-section a {
  display: block;
  color: var(--gray-400);
  margin-bottom: var(--space-2);
  transition: color var(--transition-fast);
}

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

.footer-social h4 {
  color: var(--white);
  margin-bottom: var(--space-4);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--space-8);
  text-align: center;
}

.footer-bottom p {
  color: var(--gray-400);
  margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero-title { font-size: 3rem; }
  .market-content { grid-template-columns: 1fr; gap: var(--space-12); }
  .contact-content { grid-template-columns: 1fr; gap: var(--space-12); }
  .footer-content { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .container { padding: 0 var(--space-4); }
  .nav-container { padding: 0 var(--space-4); }
  
  .nav-menu { display: none; }
  .nav-toggle { display: block; }
  
  .hero-title { font-size: 2.5rem; }
  .hero-stats { grid-template-columns: 1fr; gap: var(--space-4); }
  .hero-actions { flex-direction: column; align-items: center; }
  
  .innovation-card.featured { grid-column: span 1; }
  .innovation-grid { grid-template-columns: 1fr; }
  
  .chart-bar { flex-direction: column; align-items: flex-start; gap: var(--space-2); }
  .bar-fill { width: 100% !important; }
  
  .timeline::before { left: 15px; }
  .timeline-marker { width: 30px; height: 30px; }
  .timeline-item { gap: var(--space-4); }
  
  .footer-links { grid-template-columns: 1fr; }
  .social-links { justify-content: center; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .section-title { font-size: 2rem; }
  section { padding: var(--space-16) 0; }
  .form { padding: var(--space-6); }
}

/* Print Styles */
@media print {
  @page {
    margin: 1in;
    @top-center {
      content: "BMW Pitch Deck - The Ultimate Driving Machine";
      font-family: var(--font-secondary);
      font-size: 12pt;
      color: var(--gray-700);
    }
    @bottom-center {
      content: "Created by Helium";
      font-family: var(--font-primary);
      font-size: 10pt;
      color: var(--gray-500);
    }
  }
  
  body {
    font-size: 12pt;
    line-height: 1.4;
    color: var(--black);
    background: var(--white);
    print-color-adjust: exact;
  }
  
  .navbar,
  .scroll-indicator,
  .hero-actions,
  .contact-form,
  .footer {
    display: none;
  }
  
  section {
    page-break-inside: avoid;
    padding: 20pt 0;
  }
  
  .hero {
    min-height: auto;
    padding: 40pt 0;
  }
  
  .hero-background,
  .hero-overlay {
    display: none;
  }
  
  .hero-content {
    color: var(--black);
  }
  
  .gradient-text {
    color: var(--primary) !important;
    -webkit-text-fill-color: var(--primary);
  }
}