@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');

:root {
  --bg-color: #05070a;
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --accent-blue: #00f0ff;
  --accent-green: #39ff14;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.05);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 240, 255, 0.08), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(57, 255, 20, 0.08), transparent 25%);
  background-attachment: fixed;
}

/* Typography */
h1, h2, h3 {
  font-weight: 800;
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Header */
header {
  padding: 2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 10;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-container img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.2);
}

.logo-container span {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 5%;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(0,240,255,0.05) 0%, transparent 60%);
  z-index: -1;
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
  max-width: 900px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 3rem;
  font-weight: 300;
}

/* Buttons */
.download-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  max-width: 800px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-radius: 100px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), #00b3ff);
  color: #000;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.6);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Features */
.features {
  padding: 8rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 4rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 2.5rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-green), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  border-color: rgba(57, 255, 20, 0.3);
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  display: inline-block;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 4rem 5%;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.love {
  color: var(--accent-green);
}

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

.animate-up {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}