/**
 * Base Styles
 * Global resets and foundational styles
 * 
 * @maintainer: Frontend Team
 * @dependencies: variables.css
 */

/* Modern CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--surface-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

p {
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Focus Styles - Accessibility First */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* Button Reset */
button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

/* Image Optimization */
img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Selection Styling */
::selection {
  background-color: var(--primary-600);
  color: white;
}