body,
html {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    font-family: 'Fredericka the Great', cursive;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

.blackboard {
    background:
        linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, transparent 10%, transparent 90%, rgba(0, 0, 0, 0.2) 100%),
        radial-gradient(ellipse at center, #2d4a2e 0%, #1a3a2a 50%, #0f2518 100%);
    height: calc(100vh - 100px);
    width: calc(100vw - 100px);
    margin: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 25px solid #4a3220;
    box-shadow:
        inset 0 0 50px rgba(0, 0, 0, 0.5),
        inset 0 0 100px rgba(0, 0, 0, 0.3),
        0 20px 50px rgba(0, 0, 0, 0.8),
        0 5px 15px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
    position: relative;
    border-radius: 3px;
}

.blackboard::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.01) 2px,
            rgba(255, 255, 255, 0.01) 4px),
        repeating-linear-gradient(90deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.01) 2px,
            rgba(255, 255, 255, 0.01) 4px);
    pointer-events: none;
}

.blackboard::after {
    content: '';
    position: absolute;
    top: -25px;
    left: -25px;
    right: -25px;
    bottom: -25px;
    border: 3px solid #2d1f15;
    border-radius: 3px;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.8);
    pointer-events: none;
}

.content {
    text-align: center;
    color: #ffffff;
    z-index: 10;
}

.chalk-text {
    font-size: 4rem;
    margin-bottom: 80px;
    text-shadow:
        2px 2px 0px rgba(255, 255, 255, 0.3),
        3px 3px 8px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(255, 255, 255, 0.1);
    color: #f0f0f0;
    letter-spacing: 2px;
    filter: blur(0.3px);
    animation: chalkDust 3s ease-in-out infinite;
}

@keyframes chalkDust {

    0%,
    100% {
        filter: blur(0.3px);
        opacity: 0.95;
    }

    50% {
        filter: blur(0.4px);
        opacity: 0.98;
    }
}

.chalk-button {
    font-family: 'Fredericka the Great', cursive;
    font-size: 2rem;
    padding: 18px 40px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 4px solid rgba(255, 255, 255, 0.7);
    color: #f8f8f8;
    cursor: pointer;
    position: absolute;
    transition: none;
    /* Remove transition for instant movement */
    border-radius: 8px;
    box-shadow:
        0 0 15px rgba(255, 255, 255, 0.2),
        inset 0 0 10px rgba(255, 255, 255, 0.1);
    letter-spacing: 1px;
    filter: blur(0.3px);
    text-shadow:
        1px 1px 0px rgba(255, 255, 255, 0.4),
        2px 2px 5px rgba(0, 0, 0, 0.5);
}

.chalk-button:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    box-shadow:
        0 0 25px rgba(255, 255, 255, 0.3),
        inset 0 0 15px rgba(255, 255, 255, 0.15);
}