/* UUID 与随机字符工具只负责设置项和等宽结果区，页面结构沿用详情页公共样式。 */
#uuid-random-form,
.uuid-random-result { max-width: 800px; }
.generator-mode,
.charset-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    border: 0;
}

.generator-mode legend,
.charset-options legend {
    width: 100%;
    margin-bottom: 8px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.generator-mode label,
.charset-options label {
    position: relative;
    cursor: pointer;
}

.generator-mode input,
.charset-options input {
    position: absolute;
    opacity: 0;
}

.generator-mode span,
.charset-options span {
    display: block;
    min-height: var(--tool-control-height);
    padding: var(--tool-control-padding) 12px;
    border: 1px solid var(--line);
    border-radius: 4px;
    background: var(--surface);
    font-weight: 700;
    font-size: 14px;
    line-height: 22px;
}

.generator-mode input:checked + span,
.charset-options input:checked + span {
    color: #ffffff;
    background: var(--forest);
    border-color: var(--forest);
}

.generator-mode input:focus-visible + span,
.charset-options input:focus-visible + span {
    outline: 3px solid var(--eye);
    outline-offset: 2px;
}

.generator-options {
    margin-top: 24px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
}

.field-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(150px, 1fr);
    gap: 18px;
}

.field-grid label,
.generator-options > label {
    display: grid;
    gap: 8px;
    font-weight: 700;
}

.generator-options > label[hidden] {
    display: none;
}

.field-grid input,
.field-grid select,
.generator-options > label input {
    min-height: var(--tool-control-height);
    width: 100%;
    padding: var(--tool-control-padding) 12px;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 4px;
    font: inherit;
    font-size: var(--tool-input-font);
    line-height: 22px;
}

.field-grid input:focus,
.field-grid select:focus,
.generator-options > label input:focus {
    border-color: var(--forest);
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
}

.field-note {
    margin: 16px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.charset-options {
    margin: 20px 0;
}

.uuid-random-result {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.result-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
}

.result-heading h2 {
    margin: 0;
    font-size: 18px;
}

.result-heading p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

#uuid-random-output {
    display: block;
    width: 100%;
    height: var(--tool-editor-height);
    min-height: 96px;
    margin-top: 14px;
    padding: 14px;
    resize: vertical;
    color: var(--ink);
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 4px;
    font: 500 15px/1.7 ui-monospace, "Cascadia Code", Consolas, monospace;
    overflow-wrap: anywhere;
}

@media (max-width: 640px) {
    .field-grid { grid-template-columns: 1fr; }
    .result-heading { align-items: flex-start; flex-direction: column; gap: 5px; }
    .generator-mode span,
    .charset-options span { padding-left: 12px; padding-right: 12px; }
}