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

:root {
  --primary-color: #667eea;
  --secondary-color: #764ba2;
  --accent-color: #f093fb;
  --text-color: #333;
  --text-light: #666;
  --bg-color: #ffffff;
  --bg-dark: #1a1a2e;
  --card-bg: rgba(255, 255, 255, 0.95);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  overflow-x: hidden;
  background: var(--bg-color);
}

.section {
  padding: 5rem 0;
}

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

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  width: 100px;
  height: 4px;
  background: var(--gradient);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--gradient);
  border-radius: 4px;
}