/* ==========================================================================
   BASE STYLES
   Reset, typography, and foundational styles
   ========================================================================== */

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  height: 100%;
}

/* Body */
body {
  font-family: var(--font-mono);
  font-size: var(--font-size-base);
  line-height: 1.5;
  background: var(--color-bg);
  color: var(--color-text);
  /* Flex layout for full-height content */
  display: flex;
  flex-direction: column;
  /* Prevent body scroll - content-container handles scrolling */
  overflow: hidden;
  /* Top padding for breathing room */
  padding-top: var(--space-md);
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* Links */
a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  line-height: 1.2;
}

h1 { font-size: var(--font-size-xl); }
h2 { font-size: var(--font-size-lg); }
h3 { font-size: var(--font-size-base); }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

.text-muted { color: var(--color-muted); }
.text-danger { color: var(--color-danger); }
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }

/* Label style - common pattern */
.label {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Lists */
ul, ol {
  list-style: none;
}

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

/* Focus styles */
:focus-visible {
  outline: 2px solid var(--color-border);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--color-text);
  color: var(--color-bg);
}