* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Container and Layout */
.container {
  max-width: 1200px;
  padding: 0 1rem;
}

/* Page Headers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2rem;
  color: var(--text-primary);
}

/* Loading Animation */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Focus Styles */
:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Selection Styles */
::selection {
  background: var(--primary-color);
  color: white;
}