/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Stagger child animations */
.stagger-child {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.stagger-child.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Hero Section Animations */
.hero h1 {
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.5s forwards;
    opacity: 0;
    transform: translateY(30px);
}

.hero p {
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.7s forwards;
    opacity: 0;
    transform: translateY(30px);
}

.hero .cta-button {
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.9s forwards;
    opacity: 0;
    transform: translateY(30px);
}

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

/* Mobile Menu Animation */
.mobile-menu-active .mobile-menu-btn span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-active .mobile-menu-btn span:nth-child(2) {
    opacity: 0;
    transition: opacity 0.2s ease;
}

.mobile-menu-active .mobile-menu-btn span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Mobile Menu Slide */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        padding: 2rem;
        flex-direction: column;
        align-items: center;
        transform: translateY(-100%);
        transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        transform: translateY(0);
    }

    .nav-links a {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links.active a {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 0.2s;
    }
}

/* Card Hover Effects */
.feature-card,
.advantage-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.feature-card::before,
.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        800px circle at var(--mouse-x) var(--mouse-y),
        rgba(255, 255, 255, 0.1),
        transparent 40%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2;
    pointer-events: none;
    border-radius: inherit;
}

.feature-card:hover::before,
.advantage-card:hover::before {
    opacity: 1;
}

.feature-card:hover,
.advantage-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Form Input Focus Effects */
.form-group input,
.form-group textarea {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 97, 255, 0.1);
    transform: scale(1.01);
}

/* Button Hover Effects */
.cta-button,
.submit-button,
.language-toggle {
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cta-button::before,
.submit-button::before,
.language-toggle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.cta-button:hover::before,
.submit-button:hover::before,
.language-toggle:hover::before {
    transform: translate(-50%, -50%) scale(2);
}

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

.submit-button.loading {
    position: relative;
    color: transparent;
}

.submit-button.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: loading 0.8s infinite linear;
}

/* Success Animation */
@keyframes checkmark {
    0% { 
        transform: scale(0) rotate(-45deg);
        opacity: 0;
    }
    50% { 
        transform: scale(1.2) rotate(-45deg);
        opacity: 0.8;
    }
    100% { 
        transform: scale(1) rotate(-45deg);
        opacity: 1;
    }
}

.success-checkmark {
    color: var(--success-color);
    font-size: 1.5rem;
    animation: checkmark 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    z-index: 1001;
    transition: width 0.1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Navbar Scroll Animation */
.navbar {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.navbar.scrolling {
    transform: translateY(-100%);
}

/* Image Slider Fade Effect */
.hero-background .slide {
    opacity: 0;
    transition: opacity 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity;
}

.hero-background .slide.active {
    opacity: 1;
}

/* Section Transition Effects */
.section-title,
.section-description {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.section-title:hover {
    transform: scale(1.02);
}

/* Footer Link Hover Effect */
.footer-section a {
    position: relative;
    color: var(--light-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    transition: width 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-section a:hover::after {
    width: 100%;
}