.content {
    padding: 100px 40px 40px;
    min-height: 100%;
    width: 100%;
    background: #fff8d6;
    color: #1f1f1f;
    font-size: 24px;
}

.bingo-landing {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    background: #fff;
    border: 5px solid #cc0000;
    border-radius: 10px;
    padding: 40px;
}

.bingo-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

.bingo-label {
    text-align: left;
    font-weight: bold;
    font-size: 20px;
}

.bingo-input {
    font-size: 24px;
    padding: 12px 16px;
    border: 3px solid #1f1f1f;
    border-radius: 6px;
    font-family: inherit;
}

.bingo-input:focus {
    outline: none;
    border-color: #cc0000;
}

.bingo-button {
    font-size: 24px;
    font-weight: bold;
    padding: 14px 24px;
    background: #cc0000;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
}

.bingo-button:hover {
    background: #a30000;
}

.bingo-card-page {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.bingo-username {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 20px;
    word-break: break-all;
}

.bingo-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    background: #1f1f1f;
    border: 5px solid #1f1f1f;
    border-radius: 10px;
    aspect-ratio: 1 / 1;
}

.bingo-cell {
    position: relative;
    background: #fff;
    border: none;
    padding: 8px 6px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
    font-family: inherit;
    overflow: hidden;
    border-radius: 4px;
}

.bingo-cell-image {
    width: 100%;
    height: auto;
    max-height: 75%;
    object-fit: contain;
    pointer-events: none;
}

.bingo-cell-name {
    font-size: 14px;
    font-weight: bold;
    text-align: center;
    line-height: 1.1;
    pointer-events: none;
}

.bingo-cell-marker {
    position: absolute;
    inset: 0;
    background: rgba(204, 0, 0, 0.55);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.1s ease-in-out;
}

.bingo-cell.is-marked .bingo-cell-marker {
    opacity: 1;
}

.bingo-cell.is-free::after {
    content: 'FREE';
    position: absolute;
    top: 4px;
    left: 4px;
    background: #f0c800;
    color: #1f1f1f;
    font-size: 11px;
    font-weight: bold;
    padding: 2px 5px;
    border-radius: 3px;
    pointer-events: none;
    z-index: 1;
}

.bingo-back {
    display: inline-block;
    margin-top: 30px;
    color: #cc0000;
    font-weight: bold;
    text-decoration: none;
    font-size: 20px;
}

.bingo-back:hover {
    text-decoration: underline;
}

@media (max-width: 750px) {
    .content {
        padding: 80px 10px 20px;
        font-size: 18px;
    }

    .bingo-landing {
        padding: 25px;
    }

    .bingo-grid {
        gap: 4px;
        border-width: 3px;
    }

    .bingo-cell {
        padding: 4px 2px;
    }

    .bingo-cell-name {
        font-size: 10px;
    }

    .bingo-cell.is-free::after {
        font-size: 8px;
        padding: 1px 3px;
    }
}