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

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

body {
  min-height: 100vh;
  min-width: 320px;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  overflow-x: hidden;
  background: var(--bg);
  position: relative;
}

/* Fond propre, sombre, net avec grille */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 180, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 180, 255, 0.045) 1px, transparent 1px);
  background-size: 42px 42px;
}

/* Particules et lignes */
#particles {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* Le contenu reste au-dessus du fond */
.header,
main,
.footer {
  position: relative;
  z-index: 2;
}

main {
  min-height: 100vh;
}

/* anciens effets désactivés */
.noise,
.cursor-glow {
  display: none !important;
}

img,
video,
iframe {
  max-width: 100%;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

button {
  border: none;
}

/* Animations sécurisées */
.reveal {
  opacity: 1;
  transform: translateY(0);
}

body.animations-ready .reveal {
  opacity: 0;
  transform: translateY(45px);
  transition: 0.85s ease;
}

body.animations-ready .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes blink {
  50% {
    opacity: 0.45;
  }
}

@keyframes pulse {
  50% {
    transform: scale(1.45);
    opacity: 0.55;
  }
}

@keyframes floatCard {
  50% {
    transform: rotateY(-10deg) rotateX(5deg) translateY(-18px);
  }
}