/* ===== ANIMATIONS AND TRANSITIONS ===== */

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes slideDown {
    from {
        max-height: 0;
        opacity: 0;
    }
    to {
        max-height: 200px;
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        max-height: 200px;
        opacity: 1;
    }
    to {
        max-height: 0;
        opacity: 0;
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

/* Scroll-based Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

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

/* Header Animations */
.header {
    transform: translateY(-100%);
    animation: fadeInDown 0.8s ease-out forwards;
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-lg);
}

/* Hero Section Animations */
.hero-logo {
    animation: scaleIn 0.8s ease-out 0.2s both;
}

.hero-title {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-subtitle {
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-cta {
    animation: fadeInUp 1s ease-out 0.8s both;
}

.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button:hover {
    animation: pulse 0.6s ease-in-out;
}

/* Navigation Animations */
.nav-list a {
    position: relative;
    overflow: hidden;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: width var(--transition-normal);
}

.nav-list a:hover::after {
    width: 100%;
}

/* Button Animations */
.btn {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    transition: all var(--transition-normal);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 86, 77, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
    transition-duration: 0.1s;
}

/* Form Animations */
.form-input, .form-textarea {
    position: relative;
    transition: all var(--transition-normal);
}

.form-input:focus, .form-textarea:focus {
    transform: scale(1.02);
    box-shadow: 0 0 0 3px rgba(255, 86, 77, 0.1);
}

.form-group {
    animation: fadeInUp 0.6s ease-out both;
}

.form-group:nth-child(1) { animation-delay: 0.1s; }
.form-group:nth-child(2) { animation-delay: 0.2s; }
.form-group:nth-child(3) { animation-delay: 0.3s; }

/* Checkbox Animation */
.checkbox-custom {
    position: relative;
    overflow: hidden;
}

.checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    color: transparent;
    transition: all var(--transition-fast);
}

.checkbox-input:checked + .checkbox-label .checkbox-custom::after {
    transform: translate(-50%, -50%) scale(1);
    color: var(--color-white);
}

/* Accordion Animations */
.accordion-panel {
    transition: all var(--transition-normal);
}

.accordion-panel.expanding {
    animation: slideDown var(--transition-normal) ease-out;
}

.accordion-panel.collapsing {
    animation: slideUp var(--transition-normal) ease-out;
}

.accordion-header {
    transition: all var(--transition-fast);
}

.accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

/* Image Animations */
.flag, .section-image, .hero-bg-image {
    transition: transform var(--transition-slow);
}

.flag:hover {
    transform: scale(1.05);
}

/* Language Selector Animation */
.lang-toggle {
    transition: all var(--transition-fast);
}

.lang-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Mobile Menu Animations */
.mobile-nav {
    transition: transform var(--transition-normal);
}

.mobile-nav-list a {
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-normal);
}

.mobile-nav.active .mobile-nav-list a {
    opacity: 1;
    transform: translateY(0);
}

.mobile-nav.active .mobile-nav-list a:nth-child(1) { transition-delay: 0.1s; }
.mobile-nav.active .mobile-nav-list a:nth-child(2) { transition-delay: 0.2s; }
.mobile-nav.active .mobile-nav-list a:nth-child(3) { transition-delay: 0.3s; }

/* Loading Animations */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    animation: shimmer 1.5s infinite;
}

/* Scroll Indicators */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(
        90deg,
        var(--color-secondary),
        var(--color-primary-medium)
    );
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* Parallax Effects */
.parallax {
    transform: translateZ(0);
    transition: transform 0.1s ease-out;
}

/* Hover Effects for Interactive Elements */
.contact-item {
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
    margin: calc(var(--space-sm) * -1);
}

.contact-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
    transform: translateX(5px);
}

/* Footer Animations */
.footer-nav-list a {
    position: relative;
    transition: all var(--transition-fast);
}

.footer-nav-list a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--color-secondary);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

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

/* Section Reveal Animations */
.section-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.section-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger Animation for Lists */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

.stagger-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }

/* Form Validation Animations */
.form-error {
    animation: fadeInUp 0.3s ease-out;
}

.form-input.error, .form-textarea.error {
    animation: shake 0.5s ease-in-out;
    border-color: var(--color-secondary);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Success Animation */
.form-success {
    animation: fadeInUp 0.5s ease-out;
    color: #22c55e;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .parallax {
        transform: none !important;
    }
    
    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}