/* ============================================================
   Oswald Solutions — Animations premium
   Barre de progression · spotlight & tilt des cartes
   titres mot à mot · compteurs
   ============================================================ */

/* ---------- Barre de progression du scroll ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, rgba(248, 245, 116, 0.35), var(--acid));
  box-shadow: 0 0 12px rgba(248, 245, 116, 0.55);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  will-change: transform;
}

/* ---------- Apparition au scroll : flou + échelle ---------- */
.reveal {
  filter: blur(8px);
  transform: translateY(28px) scale(0.985);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease),
    filter 0.9s var(--ease);
}

.reveal.is-visible {
  filter: blur(0);
  transform: translateY(0) scale(1);
}

/* Les cartes gardent leurs transitions de survol */
.value__card.reveal,
.service-card.reveal {
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease),
    filter 0.9s var(--ease), border-color 0.25s var(--ease),
    box-shadow 0.35s var(--ease);
}

.value__card.reveal.is-visible:hover,
.service-card.reveal.is-visible:hover {
  transition-delay: 0s;
}

/* ---------- Hero ---------- */
/* Étiquette du hero : léger shimmer */
.hero__label {
  position: relative;
  overflow: hidden;
}

.hero__label::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -60%;
  width: 40%;
  background: linear-gradient(
    100deg,
    transparent,
    rgba(248, 245, 116, 0.22),
    transparent
  );
  transform: skewX(-20deg);
  animation: label-shimmer 5.5s var(--ease) 2.2s infinite;
  pointer-events: none;
}

@keyframes label-shimmer {
  0%   { left: -60%; }
  35%, 100% { left: 160%; }
}

/* Mot accentué du titre : dégradé animé une fois les lettres apparues */
.hero__title .hero__char--accent.is-in {
  background: linear-gradient(
    100deg,
    var(--acid) 0%,
    #ffffc2 40%,
    var(--acid) 60%,
    #e8e45a 100%
  );
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: accent-sheen 4.5s linear 1s infinite;
}

@keyframes accent-sheen {
  to { background-position: -250% 0; }
}

/* ---------- Boutons : reflet ---------- */
.btn--primary {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease), transform 0.2s var(--ease),
    filter 0.2s var(--ease);
}

.btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -75%;
  z-index: 1;
  width: 50%;
  background: linear-gradient(
    100deg,
    transparent,
    rgba(255, 255, 255, 0.65),
    transparent
  );
  transform: skewX(-22deg);
  pointer-events: none;
}

.btn--primary:hover::after,
.btn--primary:focus-visible::after {
  left: 140%;
  transition: left 0.75s var(--ease);
}

/* Effet « ripple » au clic */
.btn .ripple {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  transform: scale(0);
  animation: ripple 0.7s var(--ease) forwards;
  pointer-events: none;
}

.btn--outline,
.btn--light {
  position: relative;
  overflow: hidden;
}

@keyframes ripple {
  to {
    transform: scale(1);
    opacity: 0;
  }
}

/* ---------- Cartes : spotlight + tilt 3D ---------- */
.value__card,
.service-card {
  position: relative;
  transform-style: preserve-3d;
}

.value__card::after,
.service-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    380px circle at var(--mx, 50%) var(--my, 50%),
    rgba(0, 38, 36, 0.07),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}

.service-card::after {
  background: radial-gradient(
    380px circle at var(--mx, 50%) var(--my, 50%),
    rgba(248, 245, 116, 0.13),
    transparent 60%
  );
}

.value__card:hover::after,
.service-card:hover::after {
  opacity: 1;
}

/* Bordure lumineuse qui suit le curseur */
.value__card:hover {
  box-shadow: 0 18px 40px -22px rgba(0, 38, 36, 0.35);
}

.service-card:hover {
  box-shadow: 0 0 0 1px rgba(248, 245, 116, 0.18),
    0 22px 50px -28px rgba(248, 245, 116, 0.35);
}

.value__card.is-tilting,
.service-card.is-tilting {
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg))
    translateY(-4px) scale(1.01);
  transition: transform 0.12s linear, border-color 0.25s var(--ease),
    box-shadow 0.35s var(--ease), opacity 0.9s var(--ease),
    filter 0.9s var(--ease);
}

/* Les icônes « flottent » au survol de leur carte */
.value__card .icon,
.service-card .icon {
  transition: transform 0.5s var(--ease);
}

.value__card:hover .icon,
.service-card:hover .icon {
  transform: translateY(-3px) scale(1.12) rotate(-4deg);
}

/* ---------- Étapes de la méthode : numéro qui s'illumine ---------- */
.method__step {
  position: relative;
}

.method__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--acid), transparent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 1.1s var(--ease) 0.25s;
}

.method__step.is-visible::before {
  transform: scaleX(1);
}

/* ---------- Titres de section : révélation mot à mot ---------- */
.reveal--split,
.reveal--split.is-visible {
  opacity: 1;
  filter: none;
  transform: none;
}

.sw {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  padding-bottom: 0.12em;
  margin-bottom: -0.12em;
}

.sw__i {
  display: inline-block;
  transform: translateY(115%) rotate(4deg);
  transform-origin: 0 100%;
  transition: transform 0.95s var(--ease);
  transition-delay: calc(var(--i, 0) * 55ms);
}

.is-visible .sw__i {
  transform: translateY(0) rotate(0);
}

/* ---------- Labels : trait qui se dessine ---------- */
.label.reveal:not(.hero__label)::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 1px;
  margin-right: 0;
  vertical-align: middle;
  background: currentColor;
  transition: width 0.8s var(--ease) 0.2s, margin-right 0.8s var(--ease) 0.2s;
}

.label.reveal.is-visible:not(.hero__label)::before {
  width: 28px;
  margin-right: 0.6rem;
}

/* ---------- Retour en haut : léger rebond ---------- */
#back-to-top.is-visible {
  animation: back-top-float 3.2s ease-in-out infinite;
}

@keyframes back-top-float {
  50% { translate: 0 -4px; }
}

/* ---------- Accessibilité ---------- */
@media (prefers-reduced-motion: reduce) {
  .scroll-progress,
  .btn .ripple {
    display: none;
  }

  .reveal {
    filter: none;
  }

  .sw__i,
  .is-visible .sw__i {
    transform: none;
    transition: none;
  }

  .hero__title .hero__char--accent.is-in {
    animation: none;
  }

  .hero__label::after,
  .method__step::before {
    display: none;
  }
}


/* ---------- Ancres : la section se pose sous l'en-tête ---------- */
html {
  scroll-padding-top: var(--header-h, 69px);
}

/* ---------- Étoiles filantes du hero (très discrètes) ---------- */
.hero__stars {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__star {
  --o: 0.3;
  --a: 150deg;
  --dx: -440px;
  --dy: 254px;
  --dur: 13s;
  position: absolute;
  left: var(--x, 70%);
  top: var(--y, 12%);
  width: 130px;
  height: 1px;
  opacity: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(248, 245, 116, 0.55) 70%,
    rgba(255, 255, 230, 0.95)
  );
  transform-origin: 100% 50%;
  animation: hero-shoot var(--dur) linear infinite;
  will-change: transform, opacity;
}

/* petite tête lumineuse */
.hero__star::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -1px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #fffbe0;
  box-shadow: 0 0 6px 1px rgba(248, 245, 116, 0.6);
}

/* la traînée n'est visible que ~1,3 s sur tout le cycle */
@keyframes hero-shoot {
  0% {
    opacity: 0;
    transform: translate3d(0, 0, 0) rotate(var(--a));
  }
  1.5% {
    opacity: var(--o);
  }
  10% {
    opacity: 0;
    transform: translate3d(var(--dx), var(--dy), 0) rotate(var(--a));
  }
  100% {
    opacity: 0;
    transform: translate3d(var(--dx), var(--dy), 0) rotate(var(--a));
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__stars {
    display: none;
  }
}