:root {
  --bg-color: #0b0f19;
  --card-bg: rgba(17, 24, 39, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --primary-glow: #38bdf8;
  --secondary-glow: #818cf8;
  --accent-green: #34d399;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-body);
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
}

/* Three.js Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

/* Typography Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
}

.highlight-text {
  background: linear-gradient(135deg, var(--primary-glow), var(--secondary-glow));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Sections Layout */
.section {
  min-height: 100vh;
  padding: 100px 8% 60px 8%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  color: #fff;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}