/*
 * Reset + base globale — mobile first
 */

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@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-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: -1px -1px;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Halo doux en haut de page pour adoucir la grille */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 0%, color-mix(in srgb, var(--accent-main) 8%, transparent), transparent 60%),
    radial-gradient(ellipse 50% 40% at 90% 10%, color-mix(in srgb, var(--accent-main) 5%, transparent), transparent 60%);
  mix-blend-mode: screen;
}

/* Mode clair : grille plus douce + halo adapté (pas de screen sur fond clair) */
[data-theme='light'] body {
  background-image:
    linear-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.05) 1px, transparent 1px);
}

[data-theme='light'] body::before {
  background:
    radial-gradient(ellipse 60% 50% at 20% 0%, color-mix(in srgb, var(--accent-main) 14%, transparent), transparent 65%),
    radial-gradient(ellipse 50% 40% at 90% 10%, color-mix(in srgb, var(--accent-main) 10%, transparent), transparent 65%);
  mix-blend-mode: multiply;
  opacity: 0.6;
}

body > * {
  position: relative;
  z-index: 1;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

p {
  line-height: var(--leading-normal);
  color: var(--text-secondary);
}

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

strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Focus visible */
:focus { outline: none; }

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--accent-main);
  color: #fff;
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: var(--z-toast);
  transition: top var(--transition-fast);
}

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

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Sections */
.section {
  padding-block: var(--space-16);
}

@media (min-width: 768px) {
  .section { padding-block: var(--space-20); }
}

/* Utilitaires */
.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;
}

.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent-light); }
.text-mono { font-family: var(--font-mono); }

.is-hidden { display: none !important; }

::selection {
  background-color: var(--accent-main);
  color: #fff;
}