/* CSS анимации */

/* Fade in анимации */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@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);
    }
}

/* Slide анимации */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

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

/* Pulse анимация */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

/* Shake анимация */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-10px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(10px);
    }
}

/* Rotate анимация */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Spin анимация для загрузки */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Ripple эффект */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* Flip анимация */
@keyframes flip {
    from {
        transform: rotateY(0deg);
    }
    to {
        transform: rotateY(180deg);
    }
}

/* Glow эффект */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--color-accent);
    }
    50% {
        box-shadow: 0 0 20px var(--color-accent), 0 0 30px var(--color-accent);
    }
}

/* Typing эффект */
@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

@keyframes blink {
    from, to {
        border-color: transparent;
    }
    50% {
        border-color: var(--color-accent);
    }
}

/* Анимации для элементов */
.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fade-in-down {
    animation: fadeInDown 0.8s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.8s ease-out;
}

.animate-scale-in {
    animation: scaleIn 0.5s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out;
}

.animate-bounce {
    animation: bounce 1s;
}

.animate-pulse {
    animation: pulse 2s infinite;
}

/* Классы для анимаций при скролле (управляются JS) */
.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.animated {
    opacity: 1;
}

.fade-in-up {
    transform: translateY(50px);
}

.fade-in-up.animated {
    transform: translateY(0);
}

.fade-in-left {
    transform: translateX(-50px);
}

.fade-in-left.animated {
    transform: translateX(0);
}

.fade-in-right {
    transform: translateX(50px);
}

.fade-in-right.animated {
    transform: translateX(0);
}

.fade-in-down {
    transform: translateY(-50px);
}

.fade-in-down.animated {
    transform: translateY(0);
}

.scale-in {
    transform: scale(0.8);
}

.scale-in.animated {
    transform: scale(1);
}

/* Задержки для анимаций */
.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

/* Ripple эффект на кнопках */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Skeleton loading */
@keyframes skeleton-loading {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

/* Spinner для загрузки */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-white);
    animation: spin 1s ease-in-out infinite;
}

/* Hero анимации */
.hero-title {
    animation: fadeInDown 1s ease-out;
}

.hero-subtitle {
    animation: fadeInUp 1s ease-out 0.3s;
    animation-fill-mode: both;
}

.hero .btn {
    animation: fadeInUp 1s ease-out 0.6s;
    animation-fill-mode: both;
}

/* Модальное окно анимации */
.modal {
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    animation: scaleIn 0.3s ease-out;
}

.modal.active .modal-content {
    animation: scaleIn 0.3s ease-out;
}

/* Форма анимации при ошибках */
.shake-on-error {
    animation: shake 0.5s;
}

/* Hover эффекты */
.hover-lift {
    transition: transform 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
}

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: var(--shadow-md), 0 0 20px rgba(52, 152, 219, 0.3);
}

/* Анимация подчеркивания */
.underline-animation {
    position: relative;
    overflow: hidden;
}

.underline-animation::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

.underline-animation:hover::before {
    width: 100%;
}

/* 3D эффекты навигации теперь через CSS transition в main.css */