:root {
    --slider-width: 100%;
    --slider-height: 80vh;
    --slide-spacing: 20px;
    --slide-bg-color: rgba(0, 0, 0, 0.7);
    --slide-border-radius: 15px;
    --slide-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    --transition-duration: 1s;
    --controls-color: #fff;
    --controls-bg: rgba(0, 0, 0, 0.5);
    --controls-size: 50px;
    --pagination-active-color: #4285f4;
    --pagination-inactive-color: #ccc;
    --progress-color: #4285f4;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden;
}

.slider-container {
    position: relative;
    width: var(--slider-width);
    max-width: 1200px;
    margin: 0 auto;
    perspective: 2000px;
}

.slider {
    position: relative;
    width: 100%;
    height: var(--slider-height);
    transform-style: preserve-3d;
    transition: transform var(--transition-duration) cubic-bezier(0.17, 0.67, 0.21, 0.99);
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: var(--slide-bg-color);
    border-radius: var(--slide-border-radius);
    box-shadow: var(--slide-shadow);
    overflow: hidden;
    opacity: 0;
    transform: translate3d(0, 0, -300px) rotateY(90deg);
    transition: all var(--transition-duration) cubic-bezier(0.17, 0.67, 0.21, 0.99);
    will-change: transform, opacity;
}

.slide.active {
    opacity: 1;
    transform: translate3d(0, 0, 0) rotateY(0);
    z-index: 10;
}

.slide.prev {
    opacity: 0.7;
    transform: translate3d(-80%, 0, -200px) rotateY(30deg);
    z-index: 5;
}

.slide.next {
    opacity: 0.7;
    transform: translate3d(80%, 0, -200px) rotateY(-30deg);
    z-index: 5;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s ease;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

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

.slide-title {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.slide-description {
    font-size: 1rem;
    line-height: 1.5;
}

.slider-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    transform: translateY(-50%);
    z-index: 20;
}

.prev-btn,
.next-btn {
    width: var(--controls-size);
    height: var(--controls-size);
    border-radius: 50%;
    background: var(--controls-bg);
    color: var(--controls-color);
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    z-index: 20;
}

.prev-btn:hover,
.next-btn:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: scale(1.1);
}

.slider-pagination {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 20;
}

.pagination-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--pagination-inactive-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-dot.active {
    background: var(--pagination-active-color);
    transform: scale(1.2);
}

.slider-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: rgba(255, 255, 255, 0.2);
    z-index: 20;
}

.progress-bar {
    height: 100%;
    width: 0;
    background: var(--progress-color);
    transition: width 0.1s linear;
}

/* Touch gestures indicator */
.touch-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 10px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    display: none;
    z-index: 100;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    :root {
        --slider-height: 60vh;
        --controls-size: 40px;
    }
    
    .slide-title {
        font-size: 1.4rem;
    }
    
    .slide-description {
        font-size: 0.9rem;
    }
    
    .touch-indicator {
        display: block;
    }
}

@media (max-width: 480px) {
    :root {
        --slider-height: 50vh;
    }
    
    .slide-content {
        padding: 15px;
    }
    
    .slide-title {
        font-size: 1.2rem;
    }
    
    .slide-description {
        display: none;
    }
}

/* Loading animation */
@keyframes shimmer {
    0% { background-position: -468px 0 }
    100% { background-position: 468px 0 }
}

.slide.loading {
    background: linear-gradient(to right, #f6f7f8 8%, #e9e9e9 18%, #f6f7f8 33%);
    background-size: 800px 104px;
    animation: shimmer 1.5s infinite linear;
}