/* Animation keyframes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

/* Animation classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Button hover animations */
.btn-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Card hover animations */
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Loading animation */
@keyframes loading {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading-spinner {
    animation: loading 1s linear infinite;
}

/* Form input focus animations */
.input-focus {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.input-focus:focus {
    border-color: #3B82F6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Navigation animations */
.nav-link {
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #3B82F6;
}

/* Mobile menu animations */
.mobile-menu {
    transition: all 0.3s ease;
}

.mobile-menu.active {
    transform: translateX(0);
}

/* Portfolio overlay animations */
.portfolio-overlay {
    transition: opacity 0.3s ease;
    opacity: 0;
}

.portfolio-overlay.visible {
    opacity: 1;
}

/* Stat counter animations */
.stat-number {
    transition: all 0.3s ease;
}

/* FAQ animations */
.faq-content {
    transition: max-height 0.3s ease, opacity 0.3s ease;
    overflow: hidden;
}

/* Scroll to top button */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #3B82F6;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Parallax effect */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* Scroll reveal animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}