/*
  BLUE SEAL ENERGY GROUP — ANIMATIONS
  Keyframes, Transitions, and Motion
*/

/* ===========================
   HERO GRADIENT SHIFT — EXACT SPEC
   =========================== */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.hero {
  background: var(--grad-hero);
  background-size: 300% 300%;
  animation: gradientShift 15s ease infinite;
  position: relative;
}

/* ===========================
   SCROLL INDICATOR ANIMATION
   =========================== */
@keyframes scrollLineDown {
  0% {
    height: 0;
    opacity: 1;
  }
  50% {
    height: 48px;
    opacity: 1;
  }
  100% {
    height: 48px;
    opacity: 0;
  }
}

.scroll-indicator {
  position: absolute;
  left: 48px;
  bottom: 60px;
  width: 2px;
  height: 48px;
  background: var(--gold);
  animation: scrollLineDown 2s ease-in-out infinite;
}

/* ===========================
   SCROLL REVEAL ANIMATIONS
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

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

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}

.reveal-stagger.revealed > *:nth-child(1) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.1s;
}

.reveal-stagger.revealed > *:nth-child(2) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.2s;
}

.reveal-stagger.revealed > *:nth-child(3) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.3s;
}

.reveal-stagger.revealed > *:nth-child(4) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.4s;
}

.reveal-stagger.revealed > *:nth-child(5) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.5s;
}

.reveal-stagger.revealed > *:nth-child(6) {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.6s;
}

/* ===========================
   COUNTER ANIMATIONS
   =========================== */
.stat-counter {
  display: inline-block;
}

.stat-counter.counting {
  animation: pulse 0.6s ease-in-out;
}

@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===========================
   GOLD SHIMMER EFFECT
   =========================== */
@keyframes goldShimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

.shimmer {
  position: relative;
  overflow: hidden;
}

.shimmer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--gold),
    var(--gold-light),
    var(--gold),
    transparent
  );
  background-size: 200% 100%;
  animation: goldShimmer 3s linear infinite;
}

/* ===========================
   CARD HOVER EFFECTS
   =========================== */
.card-lift {
  transition: all 0.3s var(--ease-smooth);
}

.card-lift:hover {
  transform: translateY(-6px);
}

.card-glow {
  position: relative;
  transition: all 0.3s var(--ease-smooth);
}

.card-glow::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  opacity: 0;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  z-index: -1;
  transition: opacity 0.3s ease;
}

.card-glow:hover::after {
  opacity: 0.15;
}

/* ===========================
   BUTTON INTERACTIONS
   =========================== */
@keyframes buttonPulse {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(0,150,214,0.2);
  }
  50% {
    box-shadow: 0 6px 24px rgba(0,150,214,0.4);
  }
}

.btn-pulse {
  animation: buttonPulse 2s ease-in-out infinite;
}

/* ===========================
   MOBILE MENU STAGGER
   =========================== */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.stagger-item {
  animation: slideInRight 0.4s var(--ease-smooth) forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.10s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.20s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.30s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.40s; }
.stagger-item:nth-child(9) { animation-delay: 0.45s; }

/* ===========================
   FADE IN ANIMATIONS
   =========================== */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-32px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(32px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.fade-in {
  animation: fadeIn 0.8s ease-out;
}

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

.fade-in-left {
  animation: fadeInLeft 0.8s ease-out;
}

.fade-in-right {
  animation: fadeInRight 0.8s ease-out;
}

/* ===========================
   LOADING STATES
   =========================== */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.loading-spinner {
  animation: spin 1s linear infinite;
}

@keyframes skeleton {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.skeleton {
  animation: skeleton 1.5s ease-in-out infinite;
}

/* ===========================
   LINE DRAW ANIMATION
   =========================== */
@keyframes lineGrow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

.line-grow {
  transform-origin: left;
  animation: lineGrow 0.6s ease-out;
}

/* ===========================
   FLOATING ELEMENTS
   =========================== */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-12px);
  }
}

.float {
  animation: float 3s ease-in-out infinite;
}

@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(2deg);
  }
}

.float-slow {
  animation: floatSlow 6s ease-in-out infinite;
}

/* ===========================
   ACCESSIBILITY — REDUCE MOTION
   =========================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero {
    animation: none;
  }

  .scroll-indicator {
    animation: none;
  }
}

/* ===========================
   PAGE TRANSITIONS
   =========================== */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-enter {
  animation: pageEnter 0.6s ease-out;
}