/* Date Difference */

.date-difference {
    max-width: 900px;
    margin: 0 auto;
}

.date-difference-columns {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.date-difference-panel {
    padding: 1.25rem;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    background: #fff;
}

    .date-difference-panel h2 {
        margin: 0 0 0.75rem;
        font-size: 1.05rem;
        font-weight: 500;
        color: #333;
    }

.date-difference-input {
    display: block;
    width: 100%;
    padding: 0.65rem 0.75rem;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    background: #fff;
    color: #222;
    font-size: 0.9rem;
    box-sizing: border-box;
}

    .date-difference-input:focus {
        outline: none;
        border-color: #4f8a5b;
        box-shadow: 0 0 0 2px rgba(79, 138, 91, 0.12);
    }

.date-difference-actions {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

    .date-difference-actions .btn {
        min-width: 120px;
        border: 1px solid #4f8a5b;
        background: #fff;
        color: #4f8a5b;
    }

        .date-difference-actions .btn:hover {
            background: #dcefe0;
            border-color: #4f8a5b;
            color: #4f8a5b;
        }

.date-difference-result {
    min-height: 4.25rem;
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border: 1px solid #e2e2e2;
    border-radius: 4px;
    background: #fafafa;
    text-align: center;
}

.date-difference-result-label {
    display: block;
    color: #666;
    font-size: 0.8rem;
}

.date-difference-result strong {
    display: block;
    margin-top: 0.3rem;
    color: #222;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95rem;
    font-weight: 500;
    word-break: break-word;
}

.date-difference-message {
    min-height: 1.5rem;
    margin: 1rem 0 0;
    text-align: center;
    color: #4f8a5b;
    font-size: 0.875rem;
}

.date-difference-secondary {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

    .date-difference-secondary .btn {
        min-width: 100px;
    }

@media (max-width: 767.98px) {
    .date-difference-columns {
        grid-template-columns: 1fr;
    }
}