/* ===== ANIMAÇÕES DE ENTRADA ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s cubic-bezier(0.5, 0, 0, 1);
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* ===== DELAYS SEQUENCIAIS ===== */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }

/* ===== EFEITOS DE HOVER ===== */
.card-3d {
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  transform-style: preserve-3d;
}

.card-3d:hover {
  transform: translateY(-8px) rotateX(2deg) rotateY(-2deg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* ===== TYPING EFFECT ===== */
.typing-container {
  display: inline-block;
}

.typing-text {
  border-right: 3px solid #3b82f6;
  animation: blink 0.7s step-end infinite;
}

@keyframes blink {
  50% {
    border-color: transparent;
  }
}

/* ===== GRADIENT MESH ===== */
.gradient-mesh {
  background: linear-gradient(-45deg, #ee7752, #e73c7e, #23a6d5, #23d5ab);
  background-size: 400% 400%;
  animation: gradient 15s ease infinite;
  opacity: 0.05;
}

@keyframes gradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ===== FLOATING ANIMATION ===== */
.float {
  animation: floating 3s ease-in-out infinite;
}

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

/* ===== PULSE GLOW ===== */
.pulse-glow {
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.4); }
  50% { box-shadow: 0 0 40px rgba(59, 130, 246, 0.8); }
}

/* ===== GLASS ENHANCED ===== */
.glass-enhanced {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

/* ===== BUTTON LOADING ===== */
.btn-loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  top: 50%;
  left: 50%;
  margin-left: -10px;
  margin-top: -10px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  border-top-color: transparent;
  animation: spinner 0.8s linear infinite;
}

@keyframes spinner {
  to { transform: rotate(360deg); }
}

/* ===== SHIMMER EFFECT ===== */
.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  100% { left: 200%; }
}

/* ===== IMAGE REVEAL ===== */
.img-reveal {
  position: relative;
  overflow: hidden;
}

.img-reveal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #3b82f6;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s ease;
  z-index: 1;
}

.img-reveal.revealed::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* ===== SCROLL INDICATOR ===== */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ===== SKELETON LOADING ===== */
.skeleton {
  background: linear-gradient(90deg, #e2e8f0 25%, #cbd5e1 50%, #e2e8f0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: 8px;
}

.dark .skeleton {
  background: linear-gradient(90deg, #27272a 25%, #3f3f46 50%, #27272a 75%);
  background-size: 200% 100%;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== NAV LINK ===== */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: #3b82f6;
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link:focus::after {
  width: 100%;
}

/* ===== SECTION TRANSITIONS ===== */
.section-transition {
  position: relative;
}

.section-transition::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to bottom, transparent, rgba(10, 10, 10, 0.5), transparent);
  pointer-events: none;
  z-index: 5;
}

.section-divider {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.3), transparent);
  margin: 0 auto;
  max-width: 80%;
}

/* ===== BACK TO TOP ===== */
#back-to-top {
  transition: all 0.3s ease;
}

#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}