:root {
  /* Color Palette - Deep Charcoal & Emerald */
  --bg-color: #0d1117;
  --bg-secondary: #161b22;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --accent-color: #10b981; /* Emerald */
  --accent-hover: #059669;
  --border-color: #30363d;
  --glass-bg: rgba(22, 27, 34, 0.8);
  --glass-border: rgba(255, 255, 255, 0.1);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --container-width: 1200px;
  --section-padding: 80px 20px;
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--accent-hover);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Classes */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: var(--section-padding);
}

.grid {
  display: grid;
  gap: 2rem;
}

/* Components */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--accent-color);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.3s ease;
}

.btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  color: #fff;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.8s ease forwards;
}

/* Glassmorphism */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
}