:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --accent-primary: #38bdf8;
  --accent-secondary: #818cf8;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  padding: 2rem;
  background-image: 
    radial-gradient(at 0% 0%, hsla(215, 98%, 61%, 0.1) 0px, transparent 50%),
    radial-gradient(at 100% 100%, hsla(258, 89%, 66%, 0.1) 0px, transparent 50%);
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  text-align: center;
  margin-bottom: 4rem;
  animation: fadeInDown 0.8s ease-out;
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

p.subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  width: 100%;
  max-width: 1200px;
  animation: fadeInUp 0.8s ease-out;
}

.card {
  position: relative;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.03), transparent);
  transform: translateX(-100%);
  transition: 0.5s;
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

.card:hover::before {
  transform: translateX(100%);
}

.card-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  color: var(--accent-primary);
  margin-bottom: 1rem;
  opacity: 0.8;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.card-description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}

.view-btn {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.view-btn svg {
  width: 18px;
  height: 18px;
  transition: var(--transition);
}

.card:hover .view-btn svg {
  transform: translateX(4px);
}

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

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

@media (max-width: 640px) {
  body {
    padding: 1rem;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
}