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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #ffffff;
    overflow-x: hidden;
}

.immersive-section {
    width: 100%;
    padding: 80px 20px;
    background: #ffffff;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.header-content {
    text-align: center;
    margin-bottom: 60px;
}

.eyebrow {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    color: #00A8E8;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.title {
    font-size: 48px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.2;
}

.headline {
    font-size: 32px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 20px;
    line-height: 1.3;
}

.subtitle {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.slider-wrapper {
    position: relative;
    width: 100vw;
    overflow: hidden;
    padding: 40px 0;
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    touch-action: pan-y pinch-zoom;
}

.thumbnail-row {
    width: 100vw;
    overflow: hidden;
    margin: 12px 0;
}

.thumbnail-track {
    display: flex;
    gap: 16px;
    width: fit-content;
    animation: scroll 40s linear infinite;
}

.top-row .thumbnail-track {
    animation: scrollLeft 40s linear infinite;
}

.bottom-row .thumbnail-track {
    animation: scrollRight 40s linear infinite;
}

.thumbnail {
    width: 180px;
    height: 180px;
    border-radius: 12px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.phone-mockup {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    pointer-events: none;
}

.phone-mockup img {
    width: 280px;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-180px * 11 - 16px * 11));
    }
}

@keyframes scrollRight {
    0% {
        transform: translateX(calc(-180px * 11 - 16px * 11));
    }
    100% {
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .title {
        font-size: 36px;
    }

    .headline {
        font-size: 28px;
    }

    .subtitle {
        font-size: 18px;
    }

    .thumbnail {
        width: 140px;
        height: 140px;
    }

    .phone-mockup img {
        width: 220px;
    }

    @keyframes scrollLeft {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-140px * 11 - 16px * 11));
        }
    }

    @keyframes scrollRight {
        0% {
            transform: translateX(calc(-140px * 11 - 16px * 11));
        }
        100% {
            transform: translateX(0);
        }
    }
}

@media (max-width: 768px) {
    .immersive-section {
        padding: 60px 16px;
    }

    .title {
        font-size: 32px;
    }

    .headline {
        font-size: 24px;
    }

    .subtitle {
        font-size: 16px;
    }

    .thumbnail {
        width: 100px;
        height: 100px;
        border-radius: 8px;
    }

    .phone-mockup img {
        width: 160px;
    }

    .thumbnail-track {
        gap: 12px;
    }

    @keyframes scrollLeft {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-100px * 11 - 12px * 11));
        }
    }

    @keyframes scrollRight {
        0% {
            transform: translateX(calc(-100px * 11 - 12px * 11));
        }
        100% {
            transform: translateX(0);
        }
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 28px;
    }

    .headline {
        font-size: 20px;
    }

    .subtitle {
        font-size: 14px;
    }

    .thumbnail {
        width: 80px;
        height: 80px;
    }

    .phone-mockup img {
        width: 130px;
    }

    .thumbnail-track {
        gap: 10px;
    }

    @keyframes scrollLeft {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-80px * 11 - 10px * 11));
        }
    }

    @keyframes scrollRight {
        0% {
            transform: translateX(calc(-80px * 11 - 10px * 11));
        }
        100% {
            transform: translateX(0);
        }
    }
}