/* ========================================
   RHYTHM FORGE - Animations
   ======================================== */

/* ========================================
   KEYFRAMES
   ======================================== */

/* Fade Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Pulse Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 10px var(--fire-orange);
    }
    50% {
        box-shadow: 0 0 25px var(--fire-orange), 0 0 40px rgba(255, 107, 53, 0.5);
    }
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Shake Animation */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes shake-strong {
    0%, 100% { transform: translate(0, 0); }
    10%, 30%, 50%, 70%, 90% { transform: translate(-8px, 2px); }
    20%, 40%, 60%, 80% { transform: translate(8px, -2px); }
}

/* Bounce Animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-15px); }
    60% { transform: translateY(-7px); }
}

@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

/* Glow Animations */
@keyframes glow-pulse {
    0%, 100% {
        filter: drop-shadow(0 0 5px var(--hot-metal));
    }
    50% {
        filter: drop-shadow(0 0 20px var(--hot-metal)) drop-shadow(0 0 30px var(--fire-orange));
    }
}

@keyframes perfect-glow {
    0% {
        text-shadow: 0 0 10px var(--perfect-glow);
        transform: scale(1);
    }
    50% {
        text-shadow: 0 0 30px var(--perfect-glow), 0 0 50px var(--perfect-glow);
        transform: scale(1.1);
    }
    100% {
        text-shadow: 0 0 10px var(--perfect-glow);
        transform: scale(1);
    }
}

/* Hammer Strike Animation */
@keyframes hammer-strike {
    0% {
        transform: translateY(-50px) rotate(-45deg);
        opacity: 0;
    }
    30% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    50% {
        transform: translateY(5px) rotate(5deg);
    }
    70% {
        transform: translateY(-10px) rotate(-10deg);
    }
    100% {
        transform: translateY(0) rotate(0deg);
    }
}

/* Spark Animation */
@keyframes spark {
    0% {
        transform: scale(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(180deg);
        opacity: 0;
    }
}

@keyframes spark-fly {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(var(--spark-x, 50px), var(--spark-y, -50px)) scale(0);
        opacity: 0;
    }
}

/* Beat Indicator Animation */
@keyframes beat-approach {
    0% {
        transform: translateY(-100vh) scale(0.5);
        opacity: 0.5;
    }
    90% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes beat-hit {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.5);
        opacity: 0.5;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

@keyframes beat-miss {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(0.5) translateY(50px);
        opacity: 0;
    }
}

/* Timing Text Animation */
@keyframes timing-pop {
    0% {
        transform: translate(-50%, -50%) scale(0.5);
        opacity: 0;
    }
    20% {
        transform: translate(-50%, -50%) scale(1.2);
        opacity: 1;
    }
    40% {
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        transform: translate(-50%, -60%) scale(0.8);
        opacity: 0;
    }
}

/* Combo Counter Animation */
@keyframes combo-bump {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* Weapon Forge Animation */
@keyframes weapon-forge {
    0% {
        transform: scale(0.5) rotate(-10deg);
        opacity: 0;
        filter: brightness(2) saturate(0);
    }
    30% {
        transform: scale(1.1) rotate(5deg);
        opacity: 1;
        filter: brightness(1.5) saturate(0.5);
    }
    60% {
        transform: scale(0.95) rotate(-3deg);
        filter: brightness(1.2) saturate(0.8);
    }
    100% {
        transform: scale(1) rotate(0deg);
        filter: brightness(1) saturate(1);
    }
}

/* Combat Animations */
@keyframes attack-swing {
    0% {
        transform: translateX(0) rotate(0deg);
    }
    30% {
        transform: translateX(-20px) rotate(-30deg);
    }
    60% {
        transform: translateX(50px) rotate(30deg);
    }
    100% {
        transform: translateX(0) rotate(0deg);
    }
}

@keyframes damage-flash {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(2) saturate(0); }
}

@keyframes damage-number {
    0% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translateY(-50px) scale(0.8);
        opacity: 0;
    }
}

/* Screen Shake */
@keyframes screen-shake {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-3px, -3px); }
    20% { transform: translate(3px, -3px); }
    30% { transform: translate(-3px, 3px); }
    40% { transform: translate(3px, 3px); }
    50% { transform: translate(-3px, -3px); }
    60% { transform: translate(3px, -3px); }
    70% { transform: translate(-3px, 3px); }
    80% { transform: translate(3px, 3px); }
    90% { transform: translate(-3px, -3px); }
}

/* Victory/Defeat Animations */
@keyframes victory-banner {
    0% {
        transform: translateY(-100%) scale(0.8);
        opacity: 0;
    }
    50% {
        transform: translateY(10%) scale(1.1);
    }
    70% {
        transform: translateY(-5%) scale(0.95);
    }
    100% {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

@keyframes defeat-fade {
    0% {
        filter: brightness(1) saturate(1);
    }
    100% {
        filter: brightness(0.5) saturate(0.3);
    }
}

/* Stars Animation */
@keyframes star-fill {
    0% {
        transform: scale(0) rotate(-180deg);
        opacity: 0;
    }
    50% {
        transform: scale(1.3) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

/* Reward Pop Animation */
@keyframes reward-pop {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    60% {
        transform: scale(1.2);
        opacity: 1;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Loading Animation */
@keyframes loading-pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 1;
    }
}

/* Splash Screen Animations */
@keyframes splash-title-in {
    0% {
        opacity: 0;
        transform: scale(0.6);
        filter: brightness(3);
    }
    40% {
        opacity: 1;
        transform: scale(1.05);
        filter: brightness(1.5);
    }
    70% {
        transform: scale(0.97);
        filter: brightness(1.1);
    }
    100% {
        transform: scale(1);
        filter: brightness(1);
    }
}

@keyframes ember-float {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(var(--ember-dx, 15px), -50vh) scale(0.7);
        opacity: 0.8;
    }
    100% {
        transform: translate(var(--ember-dx2, -10px), -100vh) scale(0.3);
        opacity: 0;
    }
}

@keyframes splash-fade-out {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(1.05);
    }
}

/* Kingdom Intro Animations */
@keyframes kingdom-title-in {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
        letter-spacing: 15px;
    }
    60% {
        opacity: 1;
        transform: scale(1.02) translateY(-5px);
        letter-spacing: 6px;
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
        letter-spacing: 4px;
    }
}

@keyframes leaf-fall {
    0% {
        transform: translate(0, -20px) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.8;
    }
    50% {
        transform: translate(var(--leaf-dx, 30px), 50vh) rotate(180deg);
        opacity: 0.6;
    }
    100% {
        transform: translate(var(--leaf-dx2, -20px), 110vh) rotate(360deg);
        opacity: 0;
    }
}

@keyframes kingdom-fade-out {
    0% { opacity: 1; }
    100% { opacity: 0; }
}

@keyframes spark-rise {
    0%   { transform: translate(0, 0) scale(1); opacity: 0; }
    10%  { opacity: 1; }
    50%  { transform: translate(var(--leaf-dx, 10px), -50vh) scale(0.6); opacity: 0.7; }
    100% { transform: translate(var(--leaf-dx2, -10px), -110vh) scale(0.2); opacity: 0; }
}

@keyframes drop-fall {
    0%   { transform: translate(0, -10px) scale(1); opacity: 0; }
    10%  { opacity: 0.7; }
    50%  { transform: translate(var(--leaf-dx, 15px), 50vh) scaleY(1.3); opacity: 0.5; }
    100% { transform: translate(var(--leaf-dx2, -10px), 110vh) scaleY(1.5); opacity: 0; }
}

@keyframes sand-blow {
    0%   { transform: translate(-20vw, 0) scale(1); opacity: 0; }
    10%  { opacity: 0.6; }
    50%  { transform: translate(30vw, var(--leaf-dx, -20px)) scale(0.8); opacity: 0.4; }
    100% { transform: translate(110vw, var(--leaf-dx2, 10px)) scale(0.3); opacity: 0; }
}

@keyframes flame-rise {
    0%   { transform: translate(0, 0) scale(1) scaleX(0.8); opacity: 0; }
    15%  { opacity: 0.9; }
    40%  { transform: translate(var(--leaf-dx, 5px), -30vh) scale(0.7) scaleX(1.2); opacity: 0.7; }
    70%  { transform: translate(var(--leaf-dx2, -8px), -60vh) scale(0.4) scaleX(0.6); opacity: 0.4; }
    100% { transform: translate(0, -100vh) scale(0.1); opacity: 0; }
}

@keyframes snow-fall {
    0%   { transform: translate(0, -10px) rotate(0deg); opacity: 0; }
    10%  { opacity: 0.8; }
    25%  { transform: translate(var(--leaf-dx, 20px), 25vh) rotate(90deg); }
    50%  { transform: translate(0, 50vh) rotate(180deg); opacity: 0.6; }
    75%  { transform: translate(var(--leaf-dx2, -15px), 75vh) rotate(270deg); }
    100% { transform: translate(0, 110vh) rotate(360deg); opacity: 0; }
}

@keyframes crystal-shimmer {
    0%   { transform: translate(0, -10px) rotate(45deg) scale(1); opacity: 0; }
    10%  { opacity: 0.9; }
    30%  { transform: translate(var(--leaf-dx, 10px), 30vh) rotate(135deg) scale(1.2); opacity: 0.7; }
    60%  { transform: translate(var(--leaf-dx2, -10px), 60vh) rotate(225deg) scale(0.8); opacity: 0.5; }
    100% { transform: translate(0, 110vh) rotate(405deg) scale(0.3); opacity: 0; }
}

@keyframes shadow-drift {
    0%   { transform: translate(-30vw, 0) scale(0.5); opacity: 0; }
    20%  { opacity: 0.3; }
    50%  { transform: translate(0, var(--leaf-dx, -10px)) scale(1); opacity: 0.4; }
    80%  { opacity: 0.2; }
    100% { transform: translate(30vw, var(--leaf-dx2, 10px)) scale(0.5); opacity: 0; }
}

@keyframes light-rise {
    0%   { transform: translate(0, 0) scale(0.5); opacity: 0; }
    15%  { opacity: 0.7; }
    50%  { transform: translate(var(--leaf-dx, 10px), -40vh) scale(1); opacity: 0.5; }
    100% { transform: translate(var(--leaf-dx2, -5px), -100vh) scale(0.3); opacity: 0; }
}

@keyframes void-pulse {
    0%   { transform: translate(0, 0) scale(0.3); opacity: 0; }
    25%  { transform: scale(1.2); opacity: 0.3; }
    50%  { transform: translate(var(--leaf-dx, 5px), var(--leaf-dx2, -5px)) scale(0.8); opacity: 0.15; }
    75%  { transform: scale(1.5); opacity: 0.25; }
    100% { transform: scale(0.2); opacity: 0; }
}

/* ========================================
   ANIMATION CLASSES
   ======================================== */

/* Fade */
.animate-fade-in { animation: fadeIn 0.3s ease forwards; }
.animate-fade-out { animation: fadeOut 0.3s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.4s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.4s ease forwards; }
.animate-fade-in-scale { animation: fadeInScale 0.3s ease forwards; }

/* Pulse */
.animate-pulse { animation: pulse 1s ease infinite; }
.animate-pulse-glow { animation: pulse-glow 2s ease infinite; }
.animate-glow-pulse { animation: glow-pulse 1.5s ease infinite; }

/* Movement */
.animate-shake { animation: shake 0.5s ease; }
.animate-shake-strong { animation: shake-strong 0.5s ease; }
.animate-bounce { animation: bounce 0.8s ease; }
.animate-bounce-in { animation: bounce-in 0.6s ease forwards; }

/* Spin */
.animate-spin { animation: spin 1s linear infinite; }
.animate-spin-slow { animation: spin-slow 3s linear infinite; }

/* Game Specific */
.animate-hammer-strike { animation: hammer-strike 0.4s ease; }
.animate-timing-pop { animation: timing-pop 0.6s ease forwards; }
.animate-combo-bump { animation: combo-bump 0.2s ease; }
.animate-weapon-forge { animation: weapon-forge 1s ease forwards; }
.animate-attack-swing { animation: attack-swing 0.5s ease; }
.animate-damage-flash { animation: damage-flash 0.2s ease; }
.animate-screen-shake { animation: screen-shake 0.3s ease; }
.animate-victory-banner { animation: victory-banner 0.8s ease forwards; }
.animate-star-fill { animation: star-fill 0.5s ease forwards; }
.animate-reward-pop { animation: reward-pop 0.4s ease forwards; }

/* Timing Indicators */
.timing-indicator.show {
    animation: timing-pop 0.6s ease forwards;
}

/* Beat Indicators */
.beat-indicator {
    animation: beat-approach var(--beat-duration, 1s) linear forwards;
}

.beat-indicator.hit {
    animation: beat-hit 0.3s ease forwards;
}

.beat-indicator.miss {
    animation: beat-miss 0.3s ease forwards;
}

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

/* ========================================
   PARTICLE EFFECTS (CSS-based)
   ======================================== */

.spark-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--hot-metal);
    border-radius: 50%;
    pointer-events: none;
    animation: spark-fly 0.5s ease-out forwards;
}

.spark-particle::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    border-radius: inherit;
    filter: blur(2px);
}

/* Ring Effect */
.ring-effect {
    position: absolute;
    border: 3px solid var(--fire-orange);
    border-radius: 50%;
    animation: pulse-ring 0.5s ease-out forwards;
    pointer-events: none;
}

/* ========================================
   TRANSITION UTILITIES
   ======================================== */

.transition-none { transition: none !important; }
.transition-fast { transition: all 0.15s ease; }
.transition-normal { transition: all 0.3s ease; }
.transition-slow { transition: all 0.5s ease; }

/* ========================================
   REDUCED MOTION
   ======================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}