/* ---------------------------------------------------- */
/* KEYFRAMES                                            */
/* ---------------------------------------------------- */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes bounceArrow {
  0%, 100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 10px);
  }
}

@keyframes floatLeaf {
  0%, 100% {
    transform: translateY(0) rotate(-3deg);
  }
  50% {
    transform: translateY(-12px) rotate(3deg);
  }
}

@keyframes progressBar {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 4px 10px rgba(244, 123, 32, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 6px 18px rgba(244, 123, 32, 0.5);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ---------------------------------------------------- */
/* SCROLL REVEAL SYSTEM (Intersection Observer)          */
/* ---------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

/* Class added by JS Observer when element enters viewport */
.reveal.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-scale.visible {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* Staggered transition delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ---------------------------------------------------- */
/* ELEMENT SPECIFIC ANIMATIONS                         */
/* ---------------------------------------------------- */

/* Scroll arrow indicator in hero */
.hero-scroll-indicator {
  animation: bounceArrow 1.4s ease-in-out infinite;
}

/* Pulse on badge */
.a-propos-badge {
  animation: pulse 2s infinite ease-in-out;
}

/* Decorative leaf floating */
.leaf-deco {
  animation: floatLeaf 3.5s ease-in-out infinite;
  display: inline-block;
}

/* ---------------------------------------------------- */
/* PAGE LOADER                                          */
/* ---------------------------------------------------- */
.page-loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--vert-fonce);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader-spinner {
  width: 60px;
  height: 60px;
  animation: spin 2s linear infinite;
}

.page-loader-spinner svg {
  width: 100%;
  height: 100%;
  fill: var(--orange-principal);
}

.page-loader h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px;
  color: var(--blanc);
  letter-spacing: 2px;
  font-weight: 600;
}

/* Loaded state */
body.loaded .page-loader {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ---------------------------------------------------- */
/* BUTTONS INTERACTIVE ACTIVE SCALING                  */
/* ---------------------------------------------------- */
.btn-primaire, .btn-secondaire, .formulaire-contact button {
  transition: transform 0.2s ease, background-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
}

.btn-primaire:active, .btn-secondaire:active, .formulaire-contact button:active {
  transform: scale(0.97) !important;
}