/* ==========================================================================
   css/base.css — Reset, Typographie, Focus-Visible, Accessibilité
   ========================================================================== */

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

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

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background-color: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  background-size: cover;
  overflow-x: hidden;
  position: relative;
  transition: background-color var(--transition-theme), color var(--transition-theme);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Ambiance d'Aurore Boréale & Brillance Anime Subtile */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 18% 22%, rgba(245, 158, 11, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 82% 78%, rgba(139, 92, 246, 0.10) 0%, transparent 50%),
    radial-gradient(circle at 75% 20%, rgba(236, 72, 153, 0.06) 0%, transparent 42%);
  pointer-events: none;
  z-index: 0;
  animation: auroraAmbientGlow 16s ease-in-out infinite alternate;
}

@keyframes auroraAmbientGlow {
  0% {
    opacity: 0.65;
    transform: scale(1) translateY(0);
  }
  50% {
    opacity: 1;
    transform: scale(1.04) translateY(-12px);
  }
  100% {
    opacity: 0.75;
    transform: scale(0.98) translateY(8px);
  }
}

/* Typographie de base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text);
}

p, span, label, input, button {
  font-family: inherit;
  font-size: 13px;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

button:active {
  transform: scale(0.97);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

input {
  border: none;
  outline: none;
  font-family: inherit;
  color: inherit;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* Accessibilité Clavier : Focus visible net */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

button:focus-visible, a:focus-visible, input:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Scrollbars modernes fines */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: var(--radius-pill);
}

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

/* Mode Mouvement Réduit (Unique usage autorisé de !important) */
@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;
  }
}