#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

/* Bubble container */
.bubble-loader {
    display: flex;
    gap: 12px;
}

/* Individual bubbles */
.bubble {
    width: 16px;
    height: 16px;
    background-color: #3D89F5;
    border-radius: 50%;
    animation: wave 1s infinite ease-in-out;
}

.bubble:nth-child(1) {
    animation-delay: 0s;
}

.bubble:nth-child(2) {
    animation-delay: 0.1s;
}

.bubble:nth-child(3) {
    animation-delay: 0.2s;
}

.bubble:nth-child(4) {
    animation-delay: 0.3s;
}

.bubble:nth-child(5) {
    animation-delay: 0.4s;
}

/* Wave animation */
@keyframes wave {

    0%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    50% {
        transform: translateY(-15px);
        opacity: 1;
    }
}

/* Demo content */
.content {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-family: 'Segoe UI', sans-serif;
}