/* ============================================
   ANIMATIONS
   Keyframes, transitions, and animation utility classes
   ============================================ */

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

@keyframes floatBadge {
    0%, 100% {
        transform: translateY(0) rotate(-3deg);
    }
    50% {
        transform: translateY(-8px) rotate(-3deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

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

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

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

/* Page Load Animations */
.animate-in {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
    opacity: 0;
}

.animate-slide-left {
    animation: slideInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

.animate-slide-right {
    animation: slideInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

.animate-scale {
    animation: scaleIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}

/* Staggered Animation 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; }
.animate-delay-6 { animation-delay: 0.6s; }

/* Continuous Animations */
.float {
    animation: floatBadge 3s ease-in-out infinite;
}

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

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

/* ============================================
   SCROLL-TRIGGERED ANIMATIONS
   (Requires Intersection Observer JS)
   ============================================ */

/* Hidden state before scroll */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Visible state after scroll */
.scroll-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for scroll reveals */
.scroll-reveal:nth-child(1) { transition-delay: 0s; }
.scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
.scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
.scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
.scroll-reveal:nth-child(5) { transition-delay: 0.4s; }

/* ============================================
   REDUCE MOTION
   Respect user preferences for reduced motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .animate-in,
    .animate-fade-in,
    .animate-slide-left,
    .animate-slide-right,
    .animate-scale,
    .scroll-reveal {
        opacity: 1;
        transform: none;
    }
}