/* ============================================
   EPIC ANIMATIONS & EFFECTS - FUNGWAN ONLINE
   Inspired by Metronic v9.4.1 Design System
   ============================================ */

/* CSS Variables for Epic Theme */
:root {
  --epic-primary: #dc3545;
  --epic-primary-dark: #b02a37;
  --epic-gold: #ffd700;
  --epic-dark: #0a0a0a;
  --epic-darker: #050505;
  --epic-glow: rgba(220, 53, 69, 0.6);
  --epic-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  --epic-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============ KEYFRAME ANIMATIONS ============ */

@keyframes epicFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-20px) rotate(2deg); }
  50% { transform: translateY(-10px) rotate(-1deg); }
  75% { transform: translateY(-25px) rotate(1deg); }
}

@keyframes epicPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 var(--epic-glow); }
  50% { transform: scale(1.05); box-shadow: 0 0 40px 10px var(--epic-glow); }
}

@keyframes epicGlow {
  0%, 100% { filter: drop-shadow(0 0 20px var(--epic-glow)); }
  50% { filter: drop-shadow(0 0 40px var(--epic-glow)) drop-shadow(0 0 60px var(--epic-gold)); }
}

@keyframes epicSlideUp {
  from { opacity: 0; transform: translateY(100px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes epicSlideIn {
  from { opacity: 0; transform: translateX(-100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes epicFadeIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes epicShimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

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

@keyframes epicBorderGlow {
  0%, 100% { border-color: var(--epic-primary); box-shadow: 0 0 15px var(--epic-glow); }
  50% { border-color: var(--epic-gold); box-shadow: 0 0 30px rgba(255, 215, 0, 0.5); }
}

@keyframes epicTextGlow {
  0%, 100% { text-shadow: 0 0 10px var(--epic-glow), 0 0 20px var(--epic-glow); }
  50% { text-shadow: 0 0 20px var(--epic-glow), 0 0 40px var(--epic-glow), 0 0 60px var(--epic-gold); }
}

@keyframes epicParticle {
  0% { transform: translateY(0) translateX(0) scale(1); opacity: 1; }
  100% { transform: translateY(-100vh) translateX(50px) scale(0); opacity: 0; }
}

@keyframes epicWave {
  0% { transform: translateX(0) translateZ(0) scaleY(1); }
  50% { transform: translateX(-25%) translateZ(0) scaleY(0.55); }
  100% { transform: translateX(-50%) translateZ(0) scaleY(1); }
}

@keyframes epicMorphBg {
  0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  50% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
}

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

/* ============ UTILITY CLASSES ============ */

.epic-animate-float { animation: epicFloat 6s ease-in-out infinite; }
.epic-animate-pulse { animation: epicPulse 2s ease-in-out infinite; }
.epic-animate-glow { animation: epicGlow 3s ease-in-out infinite; }
.epic-animate-shimmer {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  background-size: 200% 100%;
  animation: epicShimmer 2s infinite;
}
.epic-animate-rotate { animation: epicRotate 20s linear infinite; }
.epic-animate-border { animation: epicBorderGlow 2s ease-in-out infinite; }
.epic-animate-text { animation: epicTextGlow 2s ease-in-out infinite; }

/* Scroll Reveal Animations */
.epic-reveal { opacity: 0; transform: translateY(50px); transition: var(--epic-transition); }
.epic-reveal.revealed { opacity: 1; transform: translateY(0); }

/* ============ EPIC CARD STYLES ============ */

.epic-card {
  background: linear-gradient(145deg, rgba(20,20,20,0.9), rgba(10,10,10,0.95));
  border: 1px solid rgba(220, 53, 69, 0.3);
  border-radius: 20px;
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--epic-transition);
  backdrop-filter: blur(10px);
}

.epic-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(220,53,69,0.1), transparent);
  transition: left 0.5s;
}

.epic-card:hover::before {
  left: 100%;
}

.epic-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--epic-primary);
  box-shadow: 0 20px 60px rgba(220, 53, 69, 0.3), 0 0 40px rgba(220, 53, 69, 0.1);
}

/* Epic Glass Card */
.epic-glass {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
}

/* ============ EPIC BUTTONS ============ */

.epic-btn {
  position: relative;
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  overflow: hidden;
  transition: var(--epic-transition);
  z-index: 1;
}

.epic-btn-primary {
  background: linear-gradient(135deg, var(--epic-primary), var(--epic-primary-dark));
  color: white;
  box-shadow: 0 10px 30px rgba(220, 53, 69, 0.4);
}

.epic-btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--epic-gold), #ff6b35);
  opacity: 0;
  transition: opacity 0.4s;
  z-index: -1;
}

.epic-btn-primary:hover::before {
  opacity: 1;
}

.epic-btn-primary:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 20px 40px rgba(255, 215, 0, 0.4);
}

.epic-btn-outline {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.epic-btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--epic-primary);
  transform: translateY(-3px);
}

/* Ripple Effect */
.epic-btn-ripple {
  position: relative;
  overflow: hidden;
}

.epic-btn-ripple::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, rgba(255,255,255,0.3) 10%, transparent 10.01%);
  background-repeat: no-repeat;
  background-position: 50%;
  transform: scale(10, 10);
  opacity: 0;
  transition: transform 0.5s, opacity 1s;
}

.epic-btn-ripple:active::after {
  transform: scale(0, 0);
  opacity: 0.3;
  transition: 0s;
}

/* ============ EPIC BACKGROUNDS ============ */

.epic-bg-gradient {
  background: linear-gradient(135deg, var(--epic-darker) 0%, var(--epic-dark) 50%, #1a0a0a 100%);
}

.epic-bg-animated {
  background: linear-gradient(-45deg, #0a0a0a, #1a0a0a, #0a1a1a, #0a0a1a);
  background-size: 400% 400%;
  animation: epicGradientShift 15s ease infinite;
}

.epic-bg-particles {
  position: relative;
  overflow: hidden;
}

.epic-bg-mesh {
  background-image:
    radial-gradient(at 40% 20%, rgba(220, 53, 69, 0.15) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(255, 215, 0, 0.1) 0px, transparent 50%),
    radial-gradient(at 0% 50%, rgba(220, 53, 69, 0.1) 0px, transparent 50%),
    radial-gradient(at 80% 50%, rgba(139, 0, 0, 0.15) 0px, transparent 50%),
    radial-gradient(at 0% 100%, rgba(220, 53, 69, 0.1) 0px, transparent 50%);
}

/* ============ EPIC TEXT EFFECTS ============ */

.epic-text-gradient {
  background: linear-gradient(135deg, #ffffff, var(--epic-primary), var(--epic-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.epic-text-glow {
  text-shadow: 0 0 10px var(--epic-glow), 0 0 20px var(--epic-glow), 0 0 30px var(--epic-glow);
}

.epic-text-outline {
  -webkit-text-stroke: 2px var(--epic-primary);
  color: transparent;
}

/* ============ EPIC HOVER EFFECTS ============ */

.epic-hover-lift {
  transition: var(--epic-transition);
}

.epic-hover-lift:hover {
  transform: translateY(-15px);
  box-shadow: var(--epic-shadow);
}

.epic-hover-glow:hover {
  box-shadow: 0 0 30px var(--epic-glow), 0 0 60px rgba(220, 53, 69, 0.3);
}

.epic-hover-border:hover {
  border-color: var(--epic-primary) !important;
}

/* ============ EPIC SECTIONS ============ */

.epic-section {
  position: relative;
  padding: 6rem 0;
  overflow: hidden;
}

.epic-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--epic-primary), transparent);
}

.epic-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--epic-primary), var(--epic-gold), var(--epic-primary), transparent);
  margin: 3rem auto;
  max-width: 400px;
}

/* ============ EPIC ICONS ============ */

.epic-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(220, 53, 69, 0.2), rgba(220, 53, 69, 0.05));
  border: 1px solid rgba(220, 53, 69, 0.3);
  font-size: 2rem;
  color: var(--epic-primary);
  transition: var(--epic-transition);
}

.epic-icon:hover {
  transform: scale(1.1) rotate(5deg);
  background: linear-gradient(135deg, var(--epic-primary), var(--epic-primary-dark));
  color: white;
  box-shadow: 0 10px 30px var(--epic-glow);
}

/* ============ EPIC STATS ============ */

.epic-stat {
  text-align: center;
  padding: 2rem;
}

.epic-stat-number {
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--epic-primary), var(--epic-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.epic-stat-label {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.5rem;
}

/* ============ EPIC SCROLLBAR ============ */

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--epic-darker);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--epic-primary), var(--epic-primary-dark));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--epic-gold), var(--epic-primary));
}

.epic-reveal-left { opacity: 0; transform: translateX(-50px); transition: var(--epic-transition); }
.epic-reveal-left.revealed { opacity: 1; transform: translateX(0); }
.epic-reveal-right { opacity: 0; transform: translateX(50px); transition: var(--epic-transition); }
.epic-reveal-right.revealed { opacity: 1; transform: translateX(0); }
.epic-reveal-scale { opacity: 0; transform: scale(0.8); transition: var(--epic-transition); }
.epic-reveal-scale.revealed { opacity: 1; transform: scale(1); }

/* Stagger Delays */
.epic-delay-1 { transition-delay: 0.1s; }
.epic-delay-2 { transition-delay: 0.2s; }
.epic-delay-3 { transition-delay: 0.3s; }
.epic-delay-4 { transition-delay: 0.4s; }
.epic-delay-5 { transition-delay: 0.5s; }
.epic-delay-6 { transition-delay: 0.6s; }