/* Reset + typographie system-ui + grille 8 px + mobile-first */

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

/* --- Base document --- */
html {
  font-size: 100%; /* 16px */
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

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

/* --- Typographie --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: var(--font-size-2xl); margin-bottom: var(--space-4); }
h2 { font-size: var(--font-size-xl);  margin-bottom: var(--space-4); }
h3 { font-size: var(--font-size-lg);  margin-bottom: var(--space-2); }

p  { margin-bottom: var(--space-4); }

a {
  color: var(--color-accent);
  text-decoration: underline;
}

a:hover {
  text-decoration: none;
}

/* Tout lien doit avoir un href — rule défensive */
a:not([href]) {
  color: var(--color-text);
  text-decoration: none;
  cursor: default;
}

/* --- Focus visible — WCAG 2.4.11 --- */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Masque le focus souris mais le garde clavier */
:focus:not(:focus-visible) {
  outline: none;
}

/* --- Grille 8 px / conteneur --- */
.container {
  width: 100%;
  padding-inline: var(--space-4);
  margin-inline: auto;
}

@media (min-width: 640px) {
  .container {
    max-width: 640px;
    padding-inline: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container {
    max-width: 1280px;
  }
}

/* --- Conteneur élargi (760 px) — result.html diagnostic --- */
.container--wide {
  max-width: 760px;
}

/* --- Utilitaires espacement --- */
.mt-1  { margin-top:    var(--space-1); }
.mt-2  { margin-top:    var(--space-2); }
.mt-4  { margin-top:    var(--space-4); }
.mb-2  { margin-bottom: var(--space-2); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mt-8  { margin-top:    var(--space-8); }
.mb-8  { margin-bottom: var(--space-8); }
.py-8  { padding-block: var(--space-8); }
.gap-4 { gap: var(--space-4); }
.gap-2 { gap: var(--space-2); }

/* --- Utilitaires layout --- */
.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.flex-wrap   { flex-wrap: wrap; }
.items-center  { align-items: center; }
.items-start   { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.grid        { display: grid; }
.pos-relative { position: relative; }
.cursor-pointer { cursor: pointer; }
.text-right  { text-align: right; }

/* --- Accessibilité : classe sr-only (lecteur d'écran uniquement) --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Skip link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-4);
}