/* ============================================
   LEON — Animazioni e Keyframes
   ============================================ */

/* --- Loader iniziale --- */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  width: 120px;
  height: 120px;
  animation: loaderPulse 1.5s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 0.3; transform: scale(0.95); }
  50% { opacity: 1; transform: scale(1); }
}

/* --- Bordo gold pulsante --- */
@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 5px rgba(201, 168, 76, 0.3),
                0 0 15px rgba(201, 168, 76, 0.1);
  }
  50% {
    box-shadow: 0 0 15px rgba(201, 168, 76, 0.5),
                0 0 30px rgba(201, 168, 76, 0.2);
  }
}

.glow-gold {
  animation: glowPulse 3s ease-in-out infinite;
}

/* --- Scintille / braci --- */
.embers-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.ember {
  position: absolute;
  bottom: -10px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #e8731a;
  animation: floatUp var(--duration, 6s) var(--delay, 0s) infinite linear;
  opacity: 0;
}

.ember:nth-child(odd) {
  background: #c9a84c;
  width: 3px;
  height: 3px;
}

.ember:nth-child(3n) {
  background: #ff4500;
  width: 2px;
  height: 2px;
}

@keyframes floatUp {
  0% {
    opacity: 0;
    transform: translateY(0) translateX(0) scale(1);
  }
  10% {
    opacity: 0.8;
  }
  50% {
    opacity: 0.6;
  }
  100% {
    opacity: 0;
    transform: translateY(-100vh) translateX(var(--drift, 30px)) scale(0.3);
  }
}

/* --- Scroll indicator pulsante --- */
@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(12px); opacity: 0.5; }
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  animation: scrollBounce 2s ease-in-out infinite;
  cursor: pointer;
}

.scroll-indicator svg {
  width: 28px;
  height: 28px;
  stroke: var(--gold);
  stroke-width: 2;
  fill: none;
}

/* --- Badge pulsante --- */
@keyframes badgePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 168, 76, 0.4); }
  50% { box-shadow: 0 0 0 10px rgba(201, 168, 76, 0); }
}

.badge-pulse {
  animation: badgePulse 2s ease-in-out infinite;
}

/* --- Counter fade in --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

/* --- Hover fill button --- */
.btn-fill-hover {
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-fill-hover::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gold);
  transition: left 0.4s ease;
  z-index: -1;
}

.btn-fill-hover:hover::after {
  left: 0;
}

.btn-fill-hover:hover {
  color: var(--bg-primary);
}

/* --- Underline animato --- */
.link-underline {
  position: relative;
  display: inline-block;
}

.link-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.4s ease;
}

.link-underline:hover::after {
  width: 100%;
}

/* --- Card flip --- */
.card-flip-container {
  perspective: 1000px;
  cursor: pointer;
}

.card-flip-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.card-flip-container.flipped .card-flip-inner {
  transform: rotateY(180deg);
}

.card-flip-front,
.card-flip-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 12px;
  overflow: hidden;
}

.card-flip-back {
  transform: rotateY(180deg);
}

/* --- AOS overrides per coerenza con palette --- */
[data-aos] {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* --- Tricolore decorativo --- */
.tricolore-line {
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg,
    var(--green-tri) 0%,
    var(--green-tri) 33%,
    #fff 33%,
    #fff 66%,
    var(--red-tri) 66%,
    var(--red-tri) 100%
  );
  opacity: 0.6;
  border-radius: 1px;
}