/* CryptoVest Professional Landing Page Styles with Animations */

:root {
  /* Brand Colors */
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #4facfe;
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* UI Colors */
  --text-primary: #1a202c;
  --text-secondary: #4a5568;
  --text-light: #718096;
  --background: #ffffff;
  --surface: #f7fafc;
  --border: #e2e8f0;
  --success: #38a169;
  --danger: #e53e3e;
  
  /* 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);
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Animation Variables */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Header Styles */
header {
  background: var(--primary-gradient);
  padding: 1rem 2rem;
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-normal);
}

header h1 {
  color: white;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  transition: transform var(--transition-normal);
}

header h1:hover {
  transform: scale(1.05);
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
}

.desktop-nav ul {
  display: flex;
  list-style: none;
  gap: 1rem;
}

.desktop-nav a {
  color: white;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 500;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.desktop-nav a:hover::before {
  left: 100%;
}

.desktop-nav a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  gap: 0.25rem;
  transition: transform var(--transition-normal);
}

.mobile-menu-btn:hover {
  transform: scale(1.1);
}

.mobile-menu-btn span {
  width: 25px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: all var(--transition-normal);
  transform-origin: center;
}

.mobile-menu-btn:hover span:nth-child(1) {
  transform: translateY(-2px);
}

.mobile-menu-btn:hover span:nth-child(3) {
  transform: translateY(2px);
}

/* Mobile Sidebar */
.mobile-sidebar {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background: white;
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  transition: right var(--transition-normal);
}

.mobile-sidebar.active {
  right: 0;
}

.sidebar-content {
  padding: 2rem;
  height: 100%;
  position: relative;
}

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-normal);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.close-btn:hover {
  background: var(--surface);
  transform: rotate(90deg);
}

.mobile-sidebar ul {
  list-style: none;
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-sidebar a {
  display: block;
  padding: 1rem;
  text-decoration: none;
  color: var(--text-primary);
  border-radius: 8px;
  transition: all var(--transition-normal);
  font-weight: 500;
  position: relative;
  overflow: hidden;
}

.mobile-sidebar a::before {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-gradient);
  transition: left var(--transition-normal);
  z-index: -1;
}

.mobile-sidebar a:hover::before {
  left: 0;
}

.mobile-sidebar a:hover {
  color: white;
  transform: translateX(5px);
}

/* Sidebar Overlay */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Scroll Animations */
.animate-section {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

.animate-section.animate-in {
  opacity: 1;
  transform: translateY(0);
}

section {
  margin-bottom: 4rem;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  transition: transform var(--transition-normal);
}

h2:hover {
  transform: scale(1.02);
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--primary-gradient);
  border-radius: 2px;
  transition: width var(--transition-normal);
}

h2:hover::after {
  width: 100px;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1rem;
  transition: color var(--transition-normal);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1.1rem;
  transition: color var(--transition-normal);
}

/* Welcome Section */
.welcome {
  background: var(--surface);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  margin-bottom: 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.welcome::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.05) 0%, transparent 70%);
  animation: rotate 20s linear infinite;
  z-index: 0;
}

.welcome > * {
  position: relative;
  z-index: 1;
}

.welcome:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.welcome p {
  font-size: 1.2rem;
  max-width: 800px;
  margin: 0 auto 1.5rem;
}

/* Content Sections */
.approach, .features, .requirements {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.03) 0%, rgba(118, 75, 162, 0.03) 100%);
  padding: 3rem;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(102, 126, 234, 0.1);
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.approach:hover, .features:hover, .requirements:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.approach::before, .features::before, .requirements::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
  transition: height var(--transition-normal);
}

.approach:hover::before, .features:hover::before, .requirements:hover::before {
  height: 6px;
}

.leadership {
  background: white;
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 2rem;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.approach h3, .features h3, .requirements h3 {
  color: var(--primary-color);
  font-size: 1.75rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.approach p, .features p, .requirements p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.approach ul, .features ul, .requirements ul {
  list-style: none;
  margin-top: 2rem;
  display: grid;
  gap: 2rem;
}

.approach li, .features li, .requirements li {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--primary-color);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.approach li::before, .features li::before, .requirements li::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.05), transparent);
  transition: left var(--transition-slow);
}

.approach li:hover::before, .features li:hover::before, .requirements li:hover::before {
  left: 100%;
}

.approach li:hover, .features li:hover, .requirements li:hover {
  transform: translateY(-5px) translateX(5px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent-color);
}

.approach strong, .features strong, .requirements strong {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 1.1rem;
  display: block;
  margin-bottom: 0.75rem;
  transition: color var(--transition-normal);
}

.approach li:hover strong, .features li:hover strong, .requirements li:hover strong {
  color: var(--accent-color);
}

.approach li p, .features li p, .requirements li p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
}

/* Market Table */
.market-table-container {
  background: white;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin: 2rem 0;
  transition: all var(--transition-normal);
}

.market-table-container:hover {
  box-shadow: var(--shadow-lg);
}

.market-table {
  width: 100%;
  border-collapse: collapse;
}

.market-table th {
  background: var(--primary-gradient);
  color: white;
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
}

.market-table th::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  transition: width var(--transition-normal);
}

.market-table th:hover::after {
  width: 100%;
}

.market-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.market-table tbody tr {
  transition: all var(--transition-fast);
}

.market-table tbody tr:hover {
  background-color: var(--surface);
  transform: scale(1.01);
}

.market-row.up {
  animation: priceUp 0.5s ease;
}

.market-row.down {
  animation: priceDown 0.5s ease;
}

@keyframes priceUp {
  0% { background-color: rgba(56, 161, 105, 0.1); }
  100% { background-color: transparent; }
}

@keyframes priceDown {
  0% { background-color: rgba(229, 62, 62, 0.1); }
  100% { background-color: transparent; }
}

.market-table .positive {
  color: var(--success);
  font-weight: 600;
  position: relative;
}

.market-table .negative {
  color: var(--danger);
  font-weight: 600;
  position: relative;
}

.market-table .price {
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.market-table .price.up {
  color: var(--success);
  animation: pulse 1s ease;
}

.market-table .price.down {
  color: var(--danger);
  animation: pulse 1s ease;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Testimonials */
.testimonials {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.testimonial-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.testimonial-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  transform-origin: left;
}

.testimonial-card:hover::before {
  transform: scaleX(1);
}

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

.testimonial-content p {
  font-style: italic;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
  position: relative;
}

.testimonial-content p::before {
  content: '"';
  font-size: 3rem;
  color: var(--primary-color);
  position: absolute;
  top: -10px;
  left: -10px;
  opacity: 0.3;
  font-family: serif;
}

.testimonial-author strong {
  color: var(--primary-color);
  font-weight: 600;
  transition: color var(--transition-normal);
}

.testimonial-card:hover .testimonial-author strong {
  color: var(--accent-color);
}

.testimonial-author span {
  color: var(--text-light);
  font-size: 0.9rem;
  display: block;
  margin-top: 0.25rem;
}

/* Action Buttons */
.action-buttons {
  text-align: center;
  margin: 2rem 0;
}

.btn {
  display: inline-block;
  background: var(--primary-gradient);
  color: white;
  padding: 1rem 2rem;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-lg);
}

.btn:active {
  transform: translateY(-1px) scale(0.98);
}

/* Footer */
footer {
  background: var(--text-primary);
  color: white;
  text-align: center;
  padding: 3rem 2rem;
  margin-top: 4rem;
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-gradient);
}

footer p {
  margin-bottom: 0.5rem;
  color: #cbd5e0;
  transition: color var(--transition-normal);
}

footer p:hover {
  color: white;
}

footer a {
  color: var(--accent-color);
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
}

footer a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-color);
  transition: width var(--transition-normal);
}

footer a:hover::after {
  width: 100%;
}

footer a:hover {
  color: white;
}

/* Keyframe Animations */
@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  /* Show mobile menu, hide desktop nav */
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  header {
    padding: 1rem;
  }
  
  header h1 {
    font-size: 1.5rem;
  }
  
  main {
    padding: 1rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .welcome {
    padding: 2rem 1.5rem;
  }
  
  .approach, .features, .requirements {
    padding: 2rem 1.5rem;
  }
  
  .leadership {
    padding: 1.5rem;
  }
  
  .approach h3, .features h3, .requirements h3 {
    font-size: 1.5rem;
  }
  
  .approach li, .features li, .requirements li {
    padding: 1.5rem;
  }
  
  .market-table-container {
    overflow-x: auto;
  }
  
  .market-table {
    min-width: 700px;
  }
  
  .market-table th,
  .market-table td {
    padding: 0.75rem 0.5rem;
    font-size: 0.85rem;
  }
  
  .testimonials {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .testimonial-card {
    padding: 1.5rem;
  }
  
  .btn {
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  h2 {
    font-size: 1.75rem;
  }
  
  .welcome {
    padding: 1.5rem 1rem;
  }
  
  .welcome p {
    font-size: 1rem;
  }
  
  .approach, .features, .requirements {
    padding: 1.5rem 1rem;
  }
  
  .leadership {
    padding: 1rem;
  }
  
  .approach li, .features li, .requirements li {
    padding: 1rem;
  }
  
  .market-table th,
  .market-table td {
    padding: 0.5rem 0.25rem;
    font-size: 0.8rem;
  }
  
  .mobile-sidebar {
    width: 280px;
    right: -280px;
  }
}