/**
 * CSS Variables and Global Styles
 */

:root {
  /* Colors */
  --blue: #1d4ed8;
  --navy: #132b63;
  --ink: #10192e;
  --muted: #667085;
  --bg: #f5f7fb;
  --card: #fff;
  --line: #e4e7ec;
  --green: #067647;
  --orange: #b54708;
  --purple: #7c3aed;
  --red: #b42318;
  
  /* Spacing */
  --sp-xs: 4px;
  --sp-sm: 8px;
  --sp-md: 12px;
  --sp-lg: 16px;
  --sp-xl: 20px;
  --sp-2xl: 24px;
  --sp-3xl: 32px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Transitions */
  --transition: all 0.2s ease-in-out;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg);
  color: var(--ink);
}

/* Text */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.2;
}

p {
  margin: 0;
  line-height: 1.5;
}

small {
  font-size: 0.875rem;
}

code, pre {
  font-family: 'Monaco', 'Menlo', 'Inconsolata', 'Courier New', monospace;
}

/* Links */
a {
  color: var(--blue);
  text-decoration: none;
  transition: var(--transition);
}

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

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

::-webkit-scrollbar-track {
  background: var(--bg);
}

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

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* Utility Classes */
.muted {
  color: var(--muted);
  font-size: 0.875rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.placeholder {
  padding: var(--sp-3xl);
  text-align: center;
  color: var(--muted);
  font-style: italic;
}