/* Custom styles */
.card {
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.card-header {
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.captcha-container {
    background: #2c3338;
    padding: 15px;
    border-radius: 5px;
    text-align: center;
    margin-bottom: 10px;
}

.captcha-code {
    font-family: 'Courier New', monospace;
    font-size: 24px;
    font-weight: bold;
    letter-spacing: 5px;
    color: #fff;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.alert {
    border-radius: 8px;
    margin-bottom: 20px;
}

.table {
    margin-bottom: 0;
}

/* Dark theme enhancements */
[data-bs-theme=dark] .card {
    background-color: var(--bs-dark);
    border-color: var(--bs-border-color);
}

[data-bs-theme=dark] .table {
    color: var(--bs-body-color);
}

[data-bs-theme=dark] .captcha-container {
    background: var(--bs-dark);
    border: 1px solid var(--bs-border-color);
}