/* ============================================
   ANIMATIONS — Keyframes & reveal states
   ============================================ */

/* ===== Keyframes ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes drawPath {
  to { stroke-dashoffset: 0; }
}

@keyframes fillBar {
  from { width: 0%; }
  to { width: 100%; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

@keyframes scrollLine {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100%); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}

/* ===== Spline robot keyframes ===== */
@keyframes robotFloat {
  0%, 100% { transform: translateY(-50%) translateZ(0); }
  50% { transform: translateY(-52%) translateZ(0); }
}

@keyframes robotGlowPulse {
  0%, 100% { opacity: 0.4; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.7; transform: translate(-50%, -50%) scale(1.1); }
}

/* ===== Reveal on scroll states ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 800ms var(--ease), transform 800ms var(--ease);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal] [data-reveal] { transition-delay: 100ms; }

/* ===== Split text states ===== */
[data-split] .split-line {
  display: block;
  overflow: hidden;
  /* Padding bas pour laisser respirer les descendants (ç, g, p, q, y, j) */
  padding-bottom: 0.18em;
  /* Marge haute négative pour garder l'alignement visuel serré */
  margin-top: -0.05em;
}

[data-split] .split-line > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1000ms var(--ease);
}

[data-split] .split-word {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  /* Padding à droite pour éviter que la dernière lettre soit coupée */
  padding-right: 0.08em;
  padding-bottom: 0.05em;
}

[data-split] .split-word > span {
  display: inline-block;
  transform: translateY(110%);
  transition: transform 1000ms var(--ease);
  /* Petit padding pour les jambages */
  padding: 0 0.02em;
}

[data-split].is-visible .split-line > span,
[data-split].is-visible .split-word > span {
  transform: translateY(0);
}

[data-split].is-visible .split-line:nth-child(1) > span { transition-delay: 0ms; }
[data-split].is-visible .split-line:nth-child(2) > span { transition-delay: 120ms; }
[data-split].is-visible .split-line:nth-child(3) > span { transition-delay: 240ms; }
[data-split].is-visible .split-line:nth-child(4) > span { transition-delay: 360ms; }

/* ===== Page reveal (post-loader) ===== */
body.is-ready section {
  opacity: 1;
}

/* ============================================
   TEXT ANIMATIONS — Diversified effects
   ============================================ */

/* ----- data-blur : révélation avec blur (pour sous-titres, paragraphes) ----- */
[data-blur] {
  opacity: 0;
  filter: blur(12px);
  transform: translateY(20px);
  transition:
    opacity 900ms var(--ease),
    filter 900ms var(--ease),
    transform 900ms var(--ease);
}

[data-blur].is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

/* ----- data-highlight : effet de surlignage sweep sur les <em> ----- */
[data-highlight] em {
  position: relative;
  display: inline-block;
  background-image: linear-gradient(
    90deg,
    var(--c-accent) 0%,
    var(--c-accent) 100%
  );
  background-size: 0% 100%;
  background-position: 0 50%;
  background-repeat: no-repeat;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  transition: background-size 1200ms cubic-bezier(0.77, 0, 0.18, 1);
}

[data-highlight].is-visible em {
  background-size: 100% 100%;
}

/* ----- data-stagger : stagger de mots sur les <li> d'une liste ----- */
[data-stagger] > * {
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

[data-stagger].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-stagger].is-visible > *:nth-child(2) { transition-delay: 80ms; }
[data-stagger].is-visible > *:nth-child(3) { transition-delay: 160ms; }
[data-stagger].is-visible > *:nth-child(4) { transition-delay: 240ms; }
[data-stagger].is-visible > *:nth-child(5) { transition-delay: 320ms; }
[data-stagger].is-visible > *:nth-child(6) { transition-delay: 400ms; }
[data-stagger].is-visible > *:nth-child(7) { transition-delay: 480ms; }
[data-stagger].is-visible > *:nth-child(8) { transition-delay: 560ms; }

[data-stagger].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* ----- data-fade : simple fade in (utilitaire léger) ----- */
[data-fade] {
  opacity: 0;
  transition: opacity 1200ms var(--ease);
}

[data-fade].is-visible {
  opacity: 1;
}

/* ----- data-underline : soulignement qui se dessine (pour liens) ----- */
[data-underline] {
  position: relative;
  display: inline-block;
}

[data-underline]::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 600ms cubic-bezier(0.77, 0, 0.18, 1);
}

[data-underline].is-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}

/* ----- data-pop : pop in avec léger scale ----- */
[data-pop] {
  opacity: 0;
  transform: scale(0.85);
  transition:
    opacity 600ms var(--ease),
    transform 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-pop].is-visible {
  opacity: 1;
  transform: scale(1);
}

/* ----- em dans les titres : animation de "color sweep" sur le mot-clé ----- */
h1 em, h2 em, h3 em {
  background-image: linear-gradient(
    90deg,
    var(--c-accent) 0%,
    #00ff7f 100%
  );
  background-size: 0% 100%;
  background-position: 0 50%;
  background-repeat: no-repeat;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  display: inline-block;
  transition: background-size 1400ms cubic-bezier(0.77, 0, 0.18, 1);
  transition-delay: 1100ms;
}

[data-split].is-visible em,
.is-visible h1 em,
.is-visible h2 em,
.is-visible h3 em {
  background-size: 100% 100%;
}

/* ===== Hover lift utility ===== */
.hover-lift {
  transition: transform 400ms var(--ease);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

/* ===== Glow pulse ===== */
.glow-pulse {
  animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 30px -10px rgba(124, 255, 0, 0.3); }
  50% { box-shadow: 0 0 50px -5px rgba(124, 255, 0, 0.5); }
}

.float {
  animation: float 4s ease-in-out infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}