/* Scroll-triggered animations and effects */

/* Animate on scroll base class */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Fade in variations */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* Parallax effects */
.parallax {
    transition: transform 0.1s ease-out;
    will-change: transform;
}

/* Sticky header effect */
.sticky-header {
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                backdrop-filter 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sticky-header.scrolled {
    background-color: rgba(29, 31, 39, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4),
                0 1px 0 rgba(255, 42, 0, 0.1);
}

/* Scroll progress indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF2A00 0%, #FF5533 50%, #FF8566 100%);
    z-index: 1001;
    transform-origin: left;
    box-shadow: 0 2px 12px rgba(255, 42, 0, 0.5);
}

/* Staggered animations */
.stagger-item {
    opacity: 0;
    transform: translateY(30px);
}

.stagger-item.visible {
    animation: staggerFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0ms; }
.stagger-item:nth-child(2) { animation-delay: 100ms; }
.stagger-item:nth-child(3) { animation-delay: 200ms; }
.stagger-item:nth-child(4) { animation-delay: 300ms; }
.stagger-item:nth-child(5) { animation-delay: 400ms; }
.stagger-item:nth-child(6) { animation-delay: 500ms; }

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

/* Reveal animations */
@keyframes revealFromBottom {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes revealFromLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes revealFromRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.reveal-bottom {
    animation: revealFromBottom 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.reveal-left {
    animation: revealFromLeft 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.reveal-right {
    animation: revealFromRight 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.reveal-scale {
    animation: revealScale 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}