.lose-checker {
    max-width: 500px;
    margin: 1em 0;
}

.lose-mode-toggle {
    display: flex;
    gap: 1.5em;
    margin-bottom: 1.2em;
    flex-wrap: wrap;
}

.lose-mode-toggle label {
    cursor: pointer;
    font-weight: normal;
}

.lose-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3em;
}

.lose-form input[type="text"] {
    width: 100%;
    max-width: 250px;
    padding: 0.5em;
    font-size: 1em;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.lose-range-row {
    display: flex;
    gap: 1em;
    flex-wrap: wrap;
}

.lose-range-row > div {
    flex: 1;
    min-width: 120px;
}

.lose-hint {
    font-size: 0.85em;
    color: #666;
    margin-top: 0.3em;
}

.lose-button {
    margin-top: 1em;
    padding: 0.6em 1.5em;
    font-size: 1em;
    background: #0073aa;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.lose-button:hover {
    background: #005f8d;
}

.lose-button:disabled {
    background: #999;
    cursor: not-allowed;
}

.lose-result {
    margin-top: 1em;
    padding: 0.8em 1em;
    border-radius: 4px;
    font-size: 1em;
    line-height: 1.5;
}

.lose-result-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.lose-result-no-win {
    background: #f8f9fa;
    color: #495057;
    border: 1px solid #dee2e6;
}

.lose-result-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}