/* ==========================================================================
 * reset.css — Modern CSS Reset / Normalize
 *
 * Establishes a consistent baseline across browsers. Removes default margins,
 * sets box-sizing: border-box globally, and applies sensible typography defaults.
 *
 * Loaded before all other stylesheets in index.html.
 * ========================================================================== */

/* --- Box Model Reset --- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* --- Remove default margins and padding --- */
* {
  margin: 0;
  padding: 0;
}

/* --- Document --- */
html {
  /* Prevent font-size inflation on mobile */
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;

  /* Smooth scrolling for anchor links */
  scroll-behavior: smooth;
}

/* --- Body --- */
body {
  min-height: 100vh;
  line-height: 1.5;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);

  /* Font smoothing for sharper text on macOS/iOS */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  /* Balance long headings across lines (where supported) */
  text-wrap: balance;
  line-height: 1.2;
  font-weight: 600;
}

p {
  text-wrap: pretty;
}

/* --- Media --- */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

/* --- Form Elements --- */
input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

textarea {
  /* Prevent horizontal resize which breaks layouts */
  resize: vertical;
}

fieldset {
  border: none;
}

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

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

/* --- Tables --- */
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* --- Accessibility --- */

/* Remove animations for users who prefer reduced motion */
@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;
  }
}

/* Focus ring — visible for keyboard navigation, hidden for mouse clicks */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}