.tool-content {
    box-shadow: var(--card-shadow);
    border: 1px solid var(--border-color);
    padding: 1.2em;
    border-radius: .6em;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.9em;
}

.tool-content .item-input {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;
}

.tool-content .item-input input {
    border: solid 1px #ddd;
    background-color: #f9fafb;
    width: 100%;
    height: 42px;
    line-height: 42px;
    padding: 0 12px;
    border-radius: 7px;
    outline: none;
    font-size: 14px;
}

.tool-content .item-input input:focus {
    border-color: #5a4df8;
    background-color: #f8f7fd;
    box-shadow: inset 0 1px 4px rgba(90, 77, 248, 0.2), 0 0 0 2px rgba(90, 77, 248, 0.1);
}

.tool-content .item-grid {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.9em;
}

.tool-content .item-grid .entropy-cell {
    flex: 1;
    padding: 12px;
    border: solid 1px #ddd;
    background-color: #f9fafb;
    border-radius: 7px;
}

.tool-content .item-grid .entropy-cell .entropy-label {
    margin-bottom: 10px;
    font-size: 0.9em;
    color: #6b7280;
}

.tool-content .item-grid .entropy-cell .entropy-value {
    font-weight: 700;
    word-break: break-all;
    font-size: 1.2em;
}

.tool-content .item-cracking {
    padding: 12px;
    border: solid 1px #ddd;
    background-color: #f9fafb;
    border-radius: 7px;
}

.tool-content .item-cracking .entropy-label {
    margin-bottom: 10px;
    font-size: 0.9em;
    color: #6b7280;
}

.tool-content .item-cracking .entropy-value {
    font-weight: 700;
    word-break: break-all;
    font-size: 1.2em;
}

.tool-content .entropy-breakdown {
    padding-left: 2px;
    font-size: 0.9em;
    margin-bottom: -0.5em;
}

.tool-content .entropy-band {
    width: 100%;
    line-height: 44px;
    border-radius: 7px;
    font-weight: 600;
    text-align: center;
    border: 1px solid #ddd;
    font-size: 14px;
}

.tool-content .entropy-band-weak {
    background: rgba(239, 68, 68, .1);
    border-color: rgba(239, 68, 68, .4);
    color: #dc2626;
}

.tool-content .entropy-band-moderate{
    background: rgba(234, 179, 8, .1);
    border-color: rgba(234, 179, 8, .4);
    color: #b45309;
}

.tool-content .entropy-band-strong{
    background: rgba(59, 130, 246, .1);
    border-color: rgba(59, 130, 246, .4);
    color: #1d4ed8;
}

.tool-content .entropy-band-very-strong{
    background: rgba(34, 197, 94, .1);
    border-color: rgba(34, 197, 94, .4);
    color: #15803d;
}

.tool-content .entropy-note {
    text-align: center;
    font-size: 0.85em;
    color: #8f97a6;
}

@media (max-width: 768px) {
    .tool-content {
        padding: .8em !important;
    }

    .operate-buttons .btn {
        line-height: 32px !important;
        height: 32px !important;
        padding: 0 8px !important;
    }

    .tool-content .text-item > label {
        width: 80px !important;
    }
}