@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #00c6ff;         /* bright cyan */
  --primary-dark: #0088cc;    /* dark cyan */
  --primary-light: #6fdfff;   /* light cyan */
  --secondary: #6a11cb;       /* purple */
  --accent: #f59e0b;          /* amber/orange */
  --dark-bg: #0f172a;         /* dark navy background */
  --dark-card: #1e1e1e;       /* card dark */
  --dark-border: #2e3440;     /* border grey */
  --text-primary: #f5f5f5;    /* main text */
  --text-secondary: #cbd5e1;  /* secondary text */
  --text-muted: #94a3b8;      /* muted text */
  --success: #22c55e;         /* green */
  --warning: #f59e0b;         /* orange */
  --error: #ef4444;           /* red */
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  --transition: all 0.3s ease;
}


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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header Styles */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--dark-border);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.75rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

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

.login-btn {
  background: var(--primary);
  color: white;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  transition: var(--transition);
}

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

.login-btn::after {
  display: none;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(16, 185, 129, 0.1));
  z-index: -1;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}

.btn-large {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.btn-disabled {
  opacity: 0.5;
  pointer-events: none;
}

.hero-stats {
  display: flex;
  gap: 2rem;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.visual-card {
  background: var(--dark-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--dark-border);
  overflow: hidden;
  position: absolute;
  width: 280px;
  transition: var(--transition);
}

.card-1 {
  transform: rotate(-5deg) translateY(-20px);
  z-index: 2;
}

.card-2 {
  transform: rotate(5deg) translateY(20px);
  z-index: 1;
}

.visual-card:hover {
  transform: rotate(0) translateY(-10px);
}

.card-header {
  padding: 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid var(--dark-border);
}

.card-dots {
  display: flex;
  gap: 0.5rem;
}

.card-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: block;
}

.card-dots span:nth-child(1) {
  background: var(--error);
}

.card-dots span:nth-child(2) {
  background: var(--warning);
}

.card-dots span:nth-child(3) {
  background: var(--success);
}

.card-content {
  padding: 1.5rem;
}

.card-content h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.card-content p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.progress {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 75%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 4px;
}

.stats {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
}

.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0) 70%);
  border-radius: 50%;
  z-index: 0;
}

/* Features Section */
.features {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.section-header p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--dark-card);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--dark-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

.feature-list i {
  color: var(--success);
}

/* Info Section */
.info-section {
  padding: 5rem 0;
  background: rgba(255, 255, 255, 0.02);
}

.info-content h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--text-primary);
}

.info-content > p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.info-points {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3rem;
}

.info-point {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.point-icon {
  font-size: 1.5rem;
  color: var(--success);
  margin-top: 0.25rem;
  flex-shrink: 0;
}

.point-content h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.point-content p {
  color: var(--text-secondary);
}

.info-highlight {
  background: var(--dark-card);
  border-radius: var(--radius);
  padding: 2rem;
  border-left: 4px solid var(--primary);
}

.info-highlight p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin: 0;
}

/* CTA Section */
.cta-section {
  padding: 5rem 0;
  text-align: center;
}

.cta-content h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.cta-content > p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.terms-box {
  background: var(--dark-card);
  border-radius: var(--radius);
  padding: 2.5rem;
  max-width: 600px;
  margin: 0 auto;
  box-shadow: var(--shadow);
  border: 1px solid var(--dark-border);
}

.checkbox-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  font-size: 1rem;
}

.checkbox-container input {
  width: 20px;
  height: 20px;
  accent-color: var(--primary);
}

.terms-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}

.terms-link:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  background: var(--dark-card);
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--dark-border);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-section h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-section h4 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-section p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.footer-section a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

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

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  transition: var(--transition);
  color: var(--text-secondary);
}

.social-links a:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-3px);
}

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--dark-border);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .hero-visual {
    order: -1;
    height: 300px;
  }
  
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--dark-card);
    flex-direction: column;
    padding: 1.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--dark-border);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .info-point {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .feature-card {
    padding: 2rem 1.5rem;
  }
  
  .terms-box {
    padding: 1.5rem;
  }
}