:root {
  --bg-color: #030305;
  --text-main: #f0f0f5;
  --text-muted: #888899;
  --accent-cyan: #00f0ff;
  --accent-glow: rgba(0, 240, 255, 0.2);
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Background Effects */
body::before {
  content: "";
  position: fixed;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle at 50% 50%, var(--accent-glow), transparent 60%);
  opacity: 0.15;
  z-index: -1;
  pointer-events: none;
}

/* Typography */
h1 {
  font-size: 4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(to right, #fff, var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

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

header {
  padding: 2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.05em;
  color: #fff;
}

.logo span {
  color: var(--accent-cyan);
}

.hero {
  padding: 10rem 0 6rem 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

/* Glass Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 4rem 0 8rem 0;
}

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 2.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
}

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

.card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #fff;
}

.card p {
  font-size: 1rem;
  line-height: 1.6;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 2rem;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.btn:hover {
  background: var(--accent-cyan);
  color: #000;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
}

/* Footer */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0;
  margin-top: 4rem;
  text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 3rem; }
  .hero { padding: 6rem 0 4rem 0; }
}