:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #ffd700;
  --accent-green: #00c853;
  --dark-1: #111827;
  --dark-2: #1f2937;
  --dark-3: #374151;
  --light: #f9fafb;
  --text-primary: #f3f4f6;
  --text-secondary: #d1d5db;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  --radius: 16px;
}

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

body {
  font-family: "Inter", sans-serif;
  background: linear-gradient(135deg, var(--dark-1) 0%, var(--dark-2) 100%);
  color: var(--text-primary);
  padding: 20px;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
}

.card {
  background: rgba(31, 41, 55, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

h1 {
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}