/* Анимированный слайдер с видео и фотографиями */
.animated-slider-section {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

/* Улучшенный Preloader для слайдера */
.slider-preloader {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1F2937 0%, #374151 50%, #4B5563 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: opacity 0.8s ease-out;
}

.slider-preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Skeleton экран для слайдера */
.slider-skeleton {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.3;
}

.skeleton-slide {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.skeleton-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        rgba(255,255,255,0.1) 0%,
        rgba(255,255,255,0.2) 50%,
        rgba(255,255,255,0.1) 100%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

.skeleton-overlay {
    position: absolute;
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    width: 80%;
}

.skeleton-text-large {
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    margin-bottom: 12px;
    animation: shimmer 2s infinite;
    animation-delay: 0.2s;
}

.skeleton-text-small {
    height: 16px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    width: 70%;
    margin: 0 auto;
    animation: shimmer 2s infinite;
    animation-delay: 0.4s;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Анимированный логотип */
.preloader-logo {
    position: relative;
    z-index: 10;
    text-align: center;
}

.logo-animation {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.truck-icon {
    font-size: 3rem;
    color: #10B981;
    margin-right: 20px;
    animation: truck-move 2s ease-in-out infinite;
}

@keyframes truck-move {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(10px); }
}

.loading-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10B981;
    animation: dot-bounce 1.4s infinite ease-in-out;
}

.dot-1 { animation-delay: -0.32s; }
.dot-2 { animation-delay: -0.16s; }
.dot-3 { animation-delay: 0s; }

@keyframes dot-bounce {
    0%, 80%, 100% { 
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% { 
        transform: scale(1);
        opacity: 1;
    }
}

.preloader-text {
    color: white;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    opacity: 0.9;
    animation: text-pulse 2s ease-in-out infinite;
    margin-bottom: 30px;
}

@keyframes text-pulse {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

/* Прогресс-бар */
.loading-progress {
    width: 200px;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #10B981, #059669);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255,255,255,0.3), 
        transparent);
    animation: progress-shine 2s infinite;
}

@keyframes progress-shine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Мобильная адаптация preloader'а */
@media (max-width: 768px) {
    .truck-icon {
        font-size: 2.5rem;
        margin-right: 15px;
    }
    
    .preloader-text {
        font-size: 0.9rem;
    }
    
    .loading-progress {
        width: 150px;
    }
    
    .skeleton-overlay {
        bottom: 15%;
        width: 90%;
    }
    
    .skeleton-text-large {
        height: 20px;
    }
    
    .skeleton-text-small {
        height: 14px;
    }
}

/* Для главной страницы слайдер занимает всю высоту секции */
.hero-section .animated-slider-section {
    border-radius: 0;
    box-shadow: none;
    margin: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Скрываем элементы управления слайдера на главной странице */
.hero-section .slider-navigation,
.hero-section .slider-indicators,
.hero-section .slider-controls {
    display: none;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.slider-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slide {
    position: relative;
    min-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Видео слайды с fallback */
.video-slide {
    position: relative;
}

.video-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    transition: opacity 0.5s ease;
}

.fallback-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-slide .slide-video {
    position: relative;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease, opacity 0.5s ease;
    z-index: 2;
    opacity: 0;
}

.video-slide.video-loaded .slide-video {
    opacity: 1;
}

.video-slide.video-loaded .video-fallback {
    opacity: 0;
}

.video-slide:hover .slide-video {
    transform: scale(1.05);
}

/* Оптимизация для медленного интернета */
.video-slide.slow-connection .slide-video {
    display: none;
}

.video-slide.slow-connection .video-fallback {
    opacity: 1;
}

/* Фото слайды */
.photo-slide .slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-slide:hover .slide-image {
    transform: scale(1.05);
}

/* Оверлей для контента */
.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        45deg,
        rgba(0, 0, 0, 0.4) 0%,
        rgba(0, 0, 0, 0.1) 50%,
        rgba(0, 0, 0, 0.4) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.slide:hover .slide-overlay {
    opacity: 1;
}

.slide-content {
    text-align: center;
    color: white;
    padding: 2rem;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.slide:hover .slide-content {
    transform: translateY(0);
}

.slide-title {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* Анимация появления */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* Тень для заголовков поверх слайдера */
.hero-text-shadow {
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.5);
}

.slide-description {
    font-size: 1rem;
    opacity: 0.9;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Навигация */
.slider-navigation {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 1rem;
    pointer-events: none;
}

.nav-btn {
    pointer-events: all;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    font-size: 1.2rem;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.nav-btn:active {
    transform: scale(0.95);
}

/* Индикаторы */
.slider-indicators {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.indicator.active {
    background: white;
    border-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.2);
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.1);
}

/* Кнопка управления */
.slider-controls {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.play-pause-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.play-pause-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

/* Анимации */
@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.slide.slide-in-right {
    animation: slideInFromRight 0.6s ease-out;
}

.slide.slide-in-left {
    animation: slideInFromLeft 0.6s ease-out;
}

/* Мобильная адаптация */
@media (max-width: 768px) {
    .animated-slider-section {
        height: 300px;
        margin: 1rem 0;
        border-radius: 10px;
    }
    
    /* На главной странице мобильная версия */
    .hero-section .animated-slider-section {
        height: 100%;
        margin: 0;
        border-radius: 0;
    }
    
    .hero-section {
        height: 500px !important;
    }

    .slide-title {
        font-size: 1.4rem;
    }

    .slide-description {
        font-size: 0.9rem;
    }

    .slide-content {
        padding: 1rem;
    }

    .nav-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .slider-navigation {
        padding: 0 0.5rem;
    }

    .indicator {
        width: 10px;
        height: 10px;
    }

    .play-pause-btn {
        width: 35px;
        height: 35px;
    }

    /* Скрываем мобильное видео на десктопе */
    .mobile-video {
        display: none;
    }
}

@media (max-width: 768px) {
    /* Показываем мобильное видео только на мобильных */
    .mobile-video {
        display: flex;
    }
    
    /* Скрываем десктопное видео на мобильных если есть мобильное */
    .video-slide:not(.mobile-video) {
        display: none;
    }
}

/* Дополнительные эффекты */
.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    pointer-events: none;
}

.slide.active::before {
    transform: translateX(100%);
}

/* Эффект загрузки */
.slider-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Фоновый слайдер для страниц */
.background-slider-section {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.background-slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.background-slider-track {
    display: flex;
    width: 100%;
    height: 100%;
    transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.background-slide {
    position: relative;
    min-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Видео и изображения в фоновом слайдере */
.background-slide-video,
.background-slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease, opacity 0.8s ease;
}

/* Оверлей для фонового слайдера */
.background-slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.5) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.5) 100%
    );
    z-index: 1;
}

/* Контент поверх фонового слайдера */
.background-slider-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Анимация появления слайдов */
.background-slide.fade-in {
    animation: backgroundFadeIn 0.8s ease-in-out;
}

@keyframes backgroundFadeIn {
    from {
        opacity: 0;
        transform: scale(1.1);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Эффект Ken Burns для изображений */
.background-slide-image.ken-burns {
    animation: kenBurns 8s ease-in-out infinite alternate;
}

@keyframes kenBurns {
    0% {
        transform: scale(1) translateX(0) translateY(0);
    }
    25% {
        transform: scale(1.1) translateX(-2%) translateY(-1%);
    }
    50% {
        transform: scale(1.05) translateX(1%) translateY(-2%);
    }
    75% {
        transform: scale(1.08) translateX(-1%) translateY(1%);
    }
    100% {
        transform: scale(1.1) translateX(2%) translateY(-1%);
    }
}

/* Мобильная адаптация для фонового слайдера */
@media (max-width: 768px) {
    .background-slider-section {
        height: 500px;
    }

    .background-slider-content h1 {
        font-size: 2rem;
    }

    .background-slider-content p {
        font-size: 1rem;
    }

    /* Скрываем мобильное видео на десктопе */
    .background-slide.mobile-video {
        display: none;
    }
}

@media (max-width: 768px) {
    /* Показываем мобильное видео только на мобильных */
    .background-slide.mobile-video {
        display: flex;
    }
    
    /* Скрываем десктопное видео на мобильных если есть мобильное */
    .background-slide.video-slide:not(.mobile-video) {
        display: none;
    }
}

/* Эффект параллакса */
.background-slider-section.parallax .background-slide-video,
.background-slider-section.parallax .background-slide-image {
    transform: translateZ(0);
    will-change: transform;
}