/**
 * Animations - Premium Keyframes i Animacije
 */

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

@keyframes slideDown {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.08); }
}

@keyframes pulseGlow {
    0%, 100% { 
        box-shadow: 0 0 20px rgba(255, 107, 53, 0.3),
                    0 0 40px rgba(255, 107, 53, 0.1);
    }
    50% { 
        box-shadow: 0 0 40px rgba(255, 107, 53, 0.5),
                    0 0 80px rgba(255, 107, 53, 0.2);
    }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-15px) rotate(2deg); }
    66% { transform: translateY(-8px) rotate(-1deg); }
}

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

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

@keyframes borderGlow {
    0%, 100% { 
        border-color: rgba(255, 107, 53, 0.3);
        box-shadow: 0 0 20px rgba(255, 107, 53, 0.1);
    }
    50% { 
        border-color: rgba(255, 107, 53, 0.6);
        box-shadow: 0 0 40px rgba(255, 107, 53, 0.2);
    }
}

@keyframes textShine {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

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

@keyframes glowPulse {
    0%, 100% { 
        opacity: 0.5;
        transform: scale(1);
    }
    50% { 
        opacity: 0.8;
        transform: scale(1.1);
    }
}

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

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.6;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

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

@keyframes expandCard {
    from {
        max-height: 0;
        opacity: 0;
        padding: 0 16px;
    }
    to {
        max-height: 500px;
        opacity: 1;
        padding: 16px;
    }
}

@keyframes collapseCard {
    from {
        max-height: 500px;
        opacity: 1;
        padding: 16px;
    }
    to {
        max-height: 0;
        opacity: 0;
        padding: 0 16px;
    }
}

/* ==========================================
   ANIMATION CLASSES
   ========================================== */
.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-fade-up {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-down {
    animation: fadeInDown 0.6s ease forwards;
}

.animate-scale {
    animation: scaleIn 0.5s ease forwards;
}

.animate-bounce {
    animation: bounceIn 0.6s ease forwards;
}

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

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

.animate-glow {
    animation: pulseGlow 3s ease-in-out infinite;
}

.animate-shimmer {
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.1) 50%, transparent 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays */
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }