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

body,
html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* Prevent scrolling */
    font-family: 'Noto Sans JP', sans-serif;
}

/* Background Video */
#bgVideo {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

/* Overlay & Vignette */
.overlay {
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 50%, rgba(0, 30, 60, 0.6) 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Full Screen Link */
.full-screen-link {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-decoration: none;
    z-index: 10;
    color: white;
    /* Ensure text inside is white */
}

/* Site Title */
.site-title {
    position: absolute;
    top: 20px;
    width: 100%;
    text-align: center;
    font-size: 2rem;
    font-weight: 900;
    color: #ff0055;
    /* TikTok-ish accent color or just prominent red/pink */
    text-shadow: 2px 2px 0px #000, -1px -1px 0 #fff;
    z-index: 15;
    letter-spacing: 2px;
}

/* Top Banner */
.top-banner {
    position: absolute;
    top: 15%;
    /* Moved down slightly to accommodate title */
    width: 90%;
    text-align: center;
    font-size: 1.6rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
    background: rgba(0, 0, 0, 0.4);
    padding: 15px;
    border-radius: 10px;
    line-height: 1.4;
    animation: fadeInDown 1s ease-out;
}

/* Fake Button (Visual representation) */
.content {
    text-align: center;
    margin-top: 120px;
    /* Increased space */
}

.fake-button {
    display: inline-block;
    background: linear-gradient(135deg, #00c6ff, #0072ff);
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    padding: 20px 60px;
    border-radius: 50px;
    box-shadow: 0 10px 20px rgba(0, 114, 255, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    text-align: center;
    line-height: 1.2;
    animation: pulse 2s infinite;
}

/* Sound Toggle Button */
.sound-button {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px 20px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(5px);
    transition: background 0.3s;
    z-index: 20;
    /* Above the full screen link */
}

.sound-button:hover {
    background: rgba(0, 0, 0, 0.8);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 198, 255, 0.7);
    }

    70% {
        box-shadow: 0 0 0 20px rgba(0, 198, 255, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(0, 198, 255, 0);
    }
}

/* Mobile Adjustments */
@media (max-width: 600px) {
    .top-banner {
        font-size: 1.4rem;
        top: 15%;
    }

    .fake-button {
        padding: 15px 40px;
        font-size: 1.2rem;
    }
}