@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800;900&display=swap');

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

:root {
  --primary: #39c5ff;
  --accent: #7c3aed;
  --bg: #06090f;
  --bg-secondary: #0d1524;
  --text: #eef2ff;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
}

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

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
  cursor: pointer;
}

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8rem 2rem 4rem;
  background: radial-gradient(circle at top left, rgba(57, 197, 255, 0.12), transparent 25%),
              radial-gradient(circle at bottom right, rgba(124, 58, 237, 0.14), transparent 20%),
              linear-gradient(180deg, #0b1220 0%, #08101a 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    linear-gradient(90deg, var(--border) 1px, transparent 1px),
    linear-gradient(0deg, var(--border) 1px, transparent 1px);
  background-size: 54px 54px;
  opacity: 0.18;
  pointer-events: none;
}

.hero-container {
  max-width: 900px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--primary) 0%, #fff44f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.btn {
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 14px;
  border: none;
  cursor: not-allowed;
  transition: all 0.3s;
  font-family: inherit;
  opacity: 0.85;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--bg);
  box-shadow: 0 18px 60px rgba(57, 197, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  opacity: 1;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

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

.hero-note {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Features Section */
.features {
  padding: 6rem 2rem;
  background: var(--bg-secondary);
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.features-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  text-align: center;
  margin-bottom: 4rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s;
}

.feature-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(255, 252, 0, 0.1);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-text {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Footer */
.footer {
  padding: 3rem 2rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
  cursor: pointer;
}

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

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
}

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

.hero-container > * {
  animation: fadeIn 0.6s ease-out forwards;
}

.hero-title {
  animation-delay: 0.1s;
}

.hero-subtitle {
  animation-delay: 0.2s;
}

.hero-cta {
  animation-delay: 0.3s;
}

.hero-note {
  animation-delay: 0.4s;
}