/* ---------------------------------------------------------------------------
   elone.eu — reset et primitives
--------------------------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
  border-color: var(--line);
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

body {
  min-height: 100dvh;
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Pendant le chargement, on verrouille le défilement */
body[data-loading="true"] {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-title);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.1;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

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

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

ul,
ol {
  list-style: none;
  padding: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

::selection {
  background-color: var(--primary-500);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--primary-400);
  outline-offset: 3px;
  border-radius: 2px;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: var(--radius-full);
  border: 3px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--fg-subtle);
}

/* --- primitives --- */

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.text-gradient {
  background-image: linear-gradient(
    100deg,
    var(--fg) 0%,
    var(--primary-300) 45%,
    var(--primary-500) 100%
  );
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}

.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: linear-gradient(to right, var(--primary-500), transparent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.375rem;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease-out-quart),
    background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease,
    box-shadow 0.35s ease;
  will-change: transform;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--primary-500);
  color: #fff;
  box-shadow: var(--glow-primary);
}

.btn--primary:hover {
  background-color: var(--primary-400);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--fg);
  background-color: color-mix(in oklab, var(--surface-raised) 60%, transparent);
}

.btn--ghost:hover {
  border-color: var(--fg-subtle);
  background-color: var(--surface-raised);
}

.btn__icon {
  width: 1rem;
  height: 1rem;
  transition: transform 0.25s var(--ease-out-quart);
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.3125rem 0.6875rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--line);
  background-color: color-mix(in oklab, var(--surface-raised) 70%, transparent);
  font-size: 0.75rem;
  line-height: 1.2;
  color: var(--fg-muted);
  white-space: nowrap;
}

/* Grille de fond, motif technique */
.bg-grid {
  background-image: linear-gradient(
      to right,
      color-mix(in oklab, var(--line) 65%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient(
      to bottom,
      color-mix(in oklab, var(--line) 65%, transparent) 1px,
      transparent 1px
    );
  background-size: 56px 56px;
}

/* --- révélation au défilement ---
   Scopé sous .anim-ready (posé par main.js) : si le JS ne se charge pas,
   rien n'est masqué et la page reste entièrement lisible. */

.anim-ready [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s var(--ease-out-expo),
    transform 0.75s var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0ms);
}

.anim-ready [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@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;
  }

  .anim-ready [data-reveal],
  .anim-ready [data-hero],
  .anim-ready .hero__title-line > span,
  .anim-ready .hero__scroll {
    opacity: 1;
    transform: none;
  }
}