/* Base styles & Variables */
:root {
  --color-accent: #3b82f6;
  --color-text: #171717;
  --color-text-muted: #737373;
  --color-bg: #ffffff;
  --color-bg-alt: #f3f4f6;
  --color-border: #e5e7eb;

  --font-family:
    system-ui, -apple-system, blinkmacsystemfont, "Segoe UI", roboto, oxygen,
    ubuntu, cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;

  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  --max-width: 960px;
  --radius-md: 0.5rem;
}

*,
*::before,
*::after {
  box_sizing: border-box;
  margin: 0;
  padding: 0;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  line-height: 1.25;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
}

p {
  margin-bottom: var(--spacing-md);
}

ul,
ol {
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-md);
}

/* Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}