:root {
  --bg-dark: #020617;
  --bg-card: #0f172a;
  --primary: #38bdf8;
  --secondary: #818cf8;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --glow: 0 0 20px rgba(56, 189, 248, 0.5);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Effects */
.bg-gradient {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background:
    radial-gradient(
      circle at 15% 50%,
      rgba(56, 189, 248, 0.08),
      transparent 25%
    ),
    radial-gradient(
      circle at 85% 30%,
      rgba(129, 140, 248, 0.08),
      transparent 25%
    );
  z-index: -1;
}

.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -1;
  mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(
    circle at center,
    black 40%,
    transparent 100%
  );
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0;
  backdrop-filter: blur(10px);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.btn-github {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: white;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-github:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 4rem 0;
}

.badge {
  padding: 0.5rem 1rem;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: 50px;
  color: var(--primary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 2rem;
  display: inline-block;
  animation: fadeDown 1s ease-out;
}

.hero h1 {
  font-size: 5rem;
  line-height: 1.1;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeUp 1s ease-out 0.2s backwards;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 3rem;
  animation: fadeUp 1s ease-out 0.4s backwards;
}

.cta-group {
  display: flex;
  gap: 1rem;
  animation: fadeUp 1s ease-out 0.6s backwards;
}

.btn-primary {
  padding: 1rem 2rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50px;
  color: #000;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
  transition: all 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(56, 189, 248, 0.5);
}

.btn-secondary {
  padding: 1rem 2rem;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50px;
  color: white;
  font-weight: 600;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

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

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

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 2rem;
  border-radius: 1rem;
  transition: all 0.4s ease;
  cursor: default;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    400px circle at var(--mouse-x, 0) var(--mouse-y, 0),
    rgba(255, 255, 255, 0.1),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.3);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: white;
}

.card p {
  color: var(--text-muted);
}

/* Terminal Preview */
.preview-container {
  margin-top: 4rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: #0d1117;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  animation: fadeUp 1s ease-out 0.8s backwards;
}

.terminal-header {
  display: flex;
  gap: 0.5rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.red {
  background: #ef4444;
}
.yellow {
  background: #eab308;
}
.green {
  background: #22c55e;
}

.terminal-body {
  padding: 1.5rem;
  font-family: "Fira Code", monospace;
  color: #a5d6ff;
  font-size: 0.9rem;
}

.cmd {
  color: #fff;
}
.dim {
  color: #7d8590;
}

/* Footer */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding: 3rem 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 5rem;
}

/* Animations */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}