:root {
  --bg-color: #0f172a;
  --text-color: #f8fafc;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.1);
  --hover-border: rgba(56, 189, 248, 0.5);
  --accent-color: #38bdf8;
  --text-muted: #94a3b8;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Background Effect */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(56, 189, 248, 0.08) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

header {
  padding: 2rem 1rem;
  text-align: center;
  margin-bottom: 2rem;
}

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

.logo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--card-border);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
}

main {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem 4rem;
  width: 100%;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--hover-border);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, transparent 0%, rgba(255, 255, 255, 0.03) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.card-icon {
  font-size: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
  flex-grow: 1;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 1rem;
  background: rgba(56, 189, 248, 0.1);
  color: var(--accent-color);
  align-self: flex-start;
}

/* Specific styling for section headers within grid if needed, 
   but for now we'll stick to a clean card grid */

@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
  }
  .grid {
    grid-template-columns: 1fr;
  }
}