/**
 * 表单组件
 * 三端共用，橙色主题
 */

.form-group {
    margin-bottom: var(--spacing-base);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    font-size: var(--font-size-sm);
}

.form-group label.required::after {
    content: '*';
    color: var(--color-danger);
    margin-left: 4px;
}

/* 输入框 */
.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-white);
    color: var(--color-text);
    transition: all var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.form-control:disabled {
    background: var(--color-bg-light);
    cursor: not-allowed;
    color: var(--color-text-muted);
}

.form-control::placeholder {
    color: var(--color-text-muted);
}

/* 输入框悬停效果 */
.form-control:hover:not(:disabled):not(:focus) {
    border-color: var(--color-primary-light);
}

/* 输入框尺寸 */
.form-control-sm {
    padding: 6px 10px;
    font-size: var(--font-size-sm);
}

.form-control-lg {
    padding: 14px 18px;
    font-size: var(--font-size-md);
}

/* 文本域 */
textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* 选择框 */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23ff6b35' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

/* 复选框和单选框 */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
}

.form-check-input {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-check-label {
    cursor: pointer;
    font-size: var(--font-size-base);
    color: var(--color-text);
    user-select: none;
}

/* 自定义复选框 */
.checkbox-custom {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-custom input {
    display: none;
}

.checkbox-custom .checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.checkbox-custom input:checked + .checkmark {
    background: var(--gradient-primary);
    border-color: var(--color-primary);
}

.checkbox-custom input:checked + .checkmark::after {
    content: '✓';
    color: var(--color-text-white);
    font-size: 12px;
    font-weight: bold;
}

/* 输入框组 */
.input-group {
    display: flex;
    align-items: stretch;
}

.input-group .form-control {
    flex: 1;
    border-radius: 0;
}

.input-group .form-control:first-child {
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group .form-control:last-child {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.input-group-addon {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.input-group-addon:first-child {
    border-right: none;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.input-group-addon:last-child {
    border-left: none;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* 表单行 */
.form-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-base);
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* 表单内联 */
.form-inline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
}

.form-inline .form-group {
    margin-bottom: 0;
}

/* 验证状态 */
.is-valid .form-control {
    border-color: var(--color-success);
}

.is-valid .form-control:focus {
    box-shadow: 0 0 0 3px var(--color-success-bg);
}

.is-valid .form-control-icon {
    color: var(--color-success);
}

.is-invalid .form-control {
    border-color: var(--color-danger);
}

.is-invalid .form-control:focus {
    box-shadow: 0 0 0 3px var(--color-danger-bg);
}

.form-error {
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-hint {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* 搜索框 */
.search-input {
    position: relative;
}

.search-input .form-control {
    padding-left: 40px;
    border-radius: var(--radius-full);
}

.search-input .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
}

.search-input .form-control:focus + .search-icon,
.search-input .form-control:focus ~ .search-icon {
    color: var(--color-primary);
}

/* 文件上传 */
.file-upload {
    position: relative;
    display: inline-block;
}

.file-upload input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
}

.file-upload-area.dragover {
    border-color: var(--color-primary);
    background: var(--color-primary-bg);
}

.file-upload-icon {
    font-size: 48px;
    color: var(--color-primary-light);
    margin-bottom: var(--spacing-base);
}

.file-upload-text {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.file-upload-text span {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

/* 开关 */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.switch-slider::before {
    position: absolute;
    content: '';
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.switch input:checked + .switch-slider {
    background: var(--gradient-primary);
}

.switch input:checked + .switch-slider::before {
    transform: translateX(20px);
}

/* 范围滑块 */
.range-slider {
    width: 100%;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--gray-200);
    outline: none;
    appearance: none;
}

.range-slider::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: var(--shadow-primary);
    transition: transform var(--transition-base);
}

.range-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

/* 输入框带图标 */
.input-icon {
    position: relative;
}

.input-icon .form-control {
    padding-left: 40px;
}

.input-icon .icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
}

.input-icon .form-control:focus ~ .icon {
    color: var(--color-primary);
}

.input-icon-right .form-control {
    padding-left: 14px;
    padding-right: 40px;
}

.input-icon-right .icon {
    left: auto;
    right: 12px;
}

/* 标签输入 */
.tag-input {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-white);
}

.tag-input:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.tag-input .tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.tag-input .tag-remove {
    cursor: pointer;
    opacity: 0.7;
}

.tag-input .tag-remove:hover {
    opacity: 1;
}

.tag-input input {
    flex: 1;
    min-width: 100px;
    border: none;
    outline: none;
    padding: var(--spacing-xs);
}

/* 日期选择器美化 */
input[type="date"],
input[type="time"],
input[type="datetime-local"] {
    cursor: pointer;
}

input[type="date"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition-base);
}

input[type="date"]::-webkit-calendar-picker-indicator:hover,
input[type="time"]::-webkit-calendar-picker-indicator:hover,
input[type="datetime-local"]::-webkit-calendar-picker-indicator:hover {
    opacity: 1;
}

/* 数字输入 */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
}