body {
    margin: 0;
    min-height: 100vh;
    background-color: black;

    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

#particle-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
}

.center-box {
    position: relative;
    z-index: 1;
    width: min(100px, 20vw);
    width: max(200px, 30vw);
    padding: 14px 18px;
    box-sizing: border-box;
    text-align: center;
    color: white;
    font-family: Arial, sans-serif;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    background: rgba(0, 0, 0, 0.35);
    box-shadow: 0 0 24px rgba(255, 255, 255, 0.08);
}

.center-box::before {
    content: "";
    position: absolute;
    inset: -18px;
    border-radius: 18px;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 60, 120, 0.35), transparent 55%),
        radial-gradient(circle at 80% 40%, rgba(255, 120, 180, 0.28), transparent 55%),
        radial-gradient(circle at 50% 80%, rgba(255, 80, 130, 0.25), transparent 60%);
    filter: blur(8px);
    opacity: 1;
    animation: particle-pulse 3.2s ease-in-out infinite;
    z-index: -1;
}

.center-box-title {
    font-size: clamp(20px, 5.2vw, 28px);
    margin-bottom: 8px;
}

.center-box-text {
    font-size: clamp(14px, 4vw, 18px);
    opacity: 0.9;
    overflow-wrap: anywhere;
    word-break: break-word;
    hyphens: auto;
}

@keyframes particle-pulse {
    0%, 100% { opacity: 0.35; transform: scale(0.98); }
    50% { opacity: 0.7; transform: scale(1.02); }
}