body, html {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    background: #1a1a1a;
    color: #fff;
    overflow-x: hidden;
}
.container {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
.title {
    font-size: 4em;
    color: #ffcc00;
    text-shadow: 0 0 10px #ffcc00;
    animation: fadeInDown 1s ease-in-out;
}
.subtitle {
    font-size: 2em;
    color: #fff;
    margin-top: 20px;
    animation: fadeInUp 1s ease-in-out;
}
.section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2em;
    color: #fff;
    text-shadow: 0 0 10px #fff;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 1s, transform 1s;
}
.section1 { background: #3498db; }
.section2 { background: #e74c3c; }
.section3 { background: #2ecc71; }
.section4 { background: #9b59b6; }
.scroll-down {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2em;
    color: #fff;
    animation: bounce 1s infinite;
}
.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #fff;
    border-radius: 50%;
    opacity: 0;
    animation: twinkle 2s infinite;
}
.cursor {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background 0.2s;
}
.ripple {
    position: absolute;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    pointer-events: none;
    transform: scale(0);
    animation: ripple 1s;
}
@keyframes fadeInDown {
    0% {
        opacity: 0;
        transform: translateY(-50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translateY(50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-30px);
    }
    60% {
        transform: translateY(-15px);
    }
}
@keyframes twinkle {
    0%, 100% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
}
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.5;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}