/* ========================================
   川渝好门户 - 统一表单组件
   Unified Form Components
   ======================================== */

/* ========== 表单容器 ========== */
.form-container {
    background: var(--cy-bg-white);
    border-radius: var(--cy-radius-lg);
    padding: var(--cy-spacing-xl);
    box-shadow: var(--cy-shadow-sm);
}

.form-container-title {
    font-size: var(--cy-font-xl);
    font-weight: 600;
    color: var(--cy-text-primary);
    margin-bottom: var(--cy-spacing-lg);
    padding-bottom: var(--cy-spacing-md);
    border-bottom: 2px solid var(--cy-border-light);
    display: flex;
    align-items: center;
    gap: var(--cy-spacing-sm);
}

/* ========== 表单组 ========== */
.form-group {
    margin-bottom: var(--cy-spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--cy-font-md);
    font-weight: 500;
    color: var(--cy-text-primary);
    margin-bottom: var(--cy-spacing-sm);
}

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

.form-label-optional {
    font-size: var(--cy-font-sm);
    color: var(--cy-text-muted);
    font-weight: 400;
    margin-left: var(--cy-spacing-xs);
}

/* ========== 输入框基础样式 ========== */
.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--cy-border);
    border-radius: var(--cy-radius-md);
    font-size: var(--cy-font-md);
    color: var(--cy-text-primary);
    background: var(--cy-bg-white);
    transition: var(--cy-transition);
}

.form-control:focus {
    border-color: var(--cy-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--cy-primary-rgb), 0.1);
}

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

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

/* ========== 输入框尺寸 ========== */
.form-control-sm {
    padding: 8px 12px;
    font-size: var(--cy-font-sm);
}

.form-control-lg {
    padding: 16px 20px;
    font-size: var(--cy-font-lg);
}

/* ========== 输入框变体 ========== */
.form-control-round {
    border-radius: var(--cy-radius-round);
}

.form-control-underline {
    border: none;
    border-bottom: 2px solid var(--cy-border);
    border-radius: 0;
    padding-left: 0;
    padding-right: 0;
}

.form-control-underline:focus {
    border-bottom-color: var(--cy-primary);
    box-shadow: none;
}

/* ========== 输入框状态 ========== */
.form-control.is-valid {
    border-color: var(--cy-success);
}

.form-control.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(56, 142, 60, 0.1);
}

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

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(211, 47, 47, 0.1);
}

/* ========== 验证提示 ========== */
.form-valid-feedback {
    display: none;
    font-size: var(--cy-font-sm);
    color: var(--cy-success);
    margin-top: var(--cy-spacing-xs);
    align-items: center;
    gap: 4px;
}

.form-invalid-feedback {
    display: none;
    font-size: var(--cy-font-sm);
    color: var(--cy-danger);
    margin-top: var(--cy-spacing-xs);
    align-items: center;
    gap: 4px;
}

.is-valid ~ .form-valid-feedback,
.is-invalid ~ .form-invalid-feedback {
    display: flex;
}

/* ========== 帮助文本 ========== */
.form-help {
    font-size: var(--cy-font-sm);
    color: var(--cy-text-muted);
    margin-top: var(--cy-spacing-xs);
}

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

.input-group-prepend,
.input-group-append {
    display: flex;
    align-items: center;
}

.input-group-text {
    padding: 12px 16px;
    background: var(--cy-bg-light);
    border: 2px solid var(--cy-border);
    color: var(--cy-text-secondary);
    font-size: var(--cy-font-md);
    white-space: nowrap;
}

.input-group-prepend .input-group-text {
    border-right: none;
    border-radius: var(--cy-radius-md) 0 0 var(--cy-radius-md);
}

.input-group-append .input-group-text {
    border-left: none;
    border-radius: 0 var(--cy-radius-md) var(--cy-radius-md) 0;
}

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

.input-group .form-control:first-child {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group .form-control:last-child {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group .form-control:not(:first-child):not(:last-child) {
    border-radius: 0;
}

/* ========== 输入框图标 ========== */
.input-icon-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cy-text-muted);
    pointer-events: none;
}

.input-icon-left {
    left: 16px;
}

.input-icon-right {
    right: 16px;
}

.input-icon-wrapper .form-control {
    padding-left: 44px;
}

.input-icon-wrapper .input-icon-right ~ .form-control {
    padding-left: 16px;
    padding-right: 44px;
}

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

.search-input-wrapper .form-control {
    padding-left: 44px;
    padding-right: 100px;
    border-radius: var(--cy-radius-round);
}

.search-input-wrapper .search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cy-text-muted);
    font-size: 18px;
}

.search-input-wrapper .search-btn {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    padding: 8px 20px;
    background: var(--cy-gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--cy-radius-round);
    font-size: var(--cy-font-md);
    cursor: pointer;
    transition: var(--cy-transition);
}

.search-input-wrapper .search-btn:hover {
    background: linear-gradient(135deg, #d32f2f 0%, #c62828 100%);
}

/* ========== 文本域 ========== */
textarea.form-control {
    min-height: 100px;
    resize: vertical;
    line-height: 1.6;
}

textarea.form-control-auto {
    resize: none;
    overflow: hidden;
}

/* ========== 复选框和单选框 ========== */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--cy-spacing-sm);
    cursor: pointer;
    user-select: none;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--cy-primary);
}

.form-check-label {
    font-size: var(--cy-font-md);
    color: var(--cy-text-primary);
    cursor: pointer;
}

/* 自定义复选框 */
.custom-checkbox {
    display: inline-flex;
    align-items: center;
    gap: var(--cy-spacing-sm);
    cursor: pointer;
    user-select: none;
}

.custom-checkbox-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.custom-checkbox-box {
    width: 20px;
    height: 20px;
    border: 2px solid var(--cy-border);
    border-radius: var(--cy-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--cy-transition);
    flex-shrink: 0;
}

.custom-checkbox-input:checked ~ .custom-checkbox-box {
    background: var(--cy-primary);
    border-color: var(--cy-primary);
}

.custom-checkbox-input:checked ~ .custom-checkbox-box::after {
    content: '✓';
    color: #fff;
    font-size: 14px;
    font-weight: bold;
}

.custom-checkbox-text {
    font-size: var(--cy-font-md);
    color: var(--cy-text-primary);
}

/* 自定义单选框 */
.custom-radio {
    display: inline-flex;
    align-items: center;
    gap: var(--cy-spacing-sm);
    cursor: pointer;
    user-select: none;
}

.custom-radio-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.custom-radio-circle {
    width: 20px;
    height: 20px;
    border: 2px solid var(--cy-border);
    border-radius: var(--cy-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--cy-transition);
    flex-shrink: 0;
}

.custom-radio-input:checked ~ .custom-radio-circle {
    border-color: var(--cy-primary);
}

.custom-radio-input:checked ~ .custom-radio-circle::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--cy-primary);
    border-radius: var(--cy-radius-circle);
}

.custom-radio-text {
    font-size: var(--cy-font-md);
    color: var(--cy-text-primary);
}

/* ========== 开关 ========== */
.form-switch {
    display: inline-flex;
    align-items: center;
    gap: var(--cy-spacing-sm);
    cursor: pointer;
}

.form-switch-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.form-switch-slider {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--cy-border);
    border-radius: var(--cy-radius-round);
    transition: var(--cy-transition);
    cursor: pointer;
}

.form-switch-slider::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: var(--cy-radius-circle);
    transition: var(--cy-transition);
    box-shadow: var(--cy-shadow-sm);
}

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

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

.form-switch-label {
    font-size: var(--cy-font-md);
    color: var(--cy-text-primary);
}

/* ========== 下拉选择框 ========== */
.form-select {
    width: 100%;
    padding: 12px 40px 12px 16px;
    border: 2px solid var(--cy-border);
    border-radius: var(--cy-radius-md);
    font-size: var(--cy-font-md);
    color: var(--cy-text-primary);
    background: var(--cy-bg-white) url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23666' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e") no-repeat right 12px center;
    background-size: 16px 12px;
    appearance: none;
    cursor: pointer;
    transition: var(--cy-transition);
}

.form-select:focus {
    border-color: var(--cy-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--cy-primary-rgb), 0.1);
}

/* ========== 文件上传 ========== */
.form-file {
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.form-file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.form-file-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--cy-spacing-sm);
    padding: 10px 20px;
    background: var(--cy-bg-light);
    border: 2px dashed var(--cy-border);
    border-radius: var(--cy-radius-md);
    color: var(--cy-text-secondary);
    font-size: var(--cy-font-md);
    cursor: pointer;
    transition: var(--cy-transition);
}

.form-file-btn:hover {
    border-color: var(--cy-primary);
    color: var(--cy-primary);
    background: rgba(var(--cy-primary-rgb), 0.05);
}

/* 文件上传拖拽区 */
.form-file-dropzone {
    padding: var(--cy-spacing-xl);
    border: 2px dashed var(--cy-border);
    border-radius: var(--cy-radius-lg);
    text-align: center;
    transition: var(--cy-transition);
    cursor: pointer;
}

.form-file-dropzone:hover,
.form-file-dropzone.dragover {
    border-color: var(--cy-primary);
    background: rgba(var(--cy-primary-rgb), 0.05);
}

.form-file-dropzone-icon {
    font-size: 48px;
    color: var(--cy-text-muted);
    margin-bottom: var(--cy-spacing-md);
}

.form-file-dropzone-text {
    font-size: var(--cy-font-md);
    color: var(--cy-text-secondary);
    margin-bottom: var(--cy-spacing-sm);
}

.form-file-dropzone-hint {
    font-size: var(--cy-font-sm);
    color: var(--cy-text-muted);
}

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

.form-col {
    flex: 1;
}

.form-col-6 {
    flex: 0 0 50%;
    max-width: 50%;
}

.form-col-4 {
    flex: 0 0 33.333%;
    max-width: 33.333%;
}

.form-col-8 {
    flex: 0 0 66.666%;
    max-width: 66.666%;
}

/* ========== 表单操作区 ========== */
.form-actions {
    display: flex;
    gap: var(--cy-spacing-md);
    margin-top: var(--cy-spacing-xl);
    padding-top: var(--cy-spacing-lg);
    border-top: 1px solid var(--cy-border-light);
}

.form-actions-right {
    justify-content: flex-end;
}

.form-actions-center {
    justify-content: center;
}

.form-actions-between {
    justify-content: space-between;
}

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

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

.form-inline .form-label {
    margin-bottom: 0;
    margin-right: var(--cy-spacing-sm);
}

/* ========== 浮动标签表单 ========== */
.form-floating {
    position: relative;
}

.form-floating .form-control {
    padding-top: 20px;
    padding-bottom: 8px;
}

.form-floating-label {
    position: absolute;
    top: 12px;
    left: 16px;
    font-size: var(--cy-font-md);
    color: var(--cy-text-muted);
    pointer-events: none;
    transition: var(--cy-transition);
}

.form-floating .form-control:focus ~ .form-floating-label,
.form-floating .form-control:not(:placeholder-shown) ~ .form-floating-label {
    top: 4px;
    font-size: var(--cy-font-xs);
    color: var(--cy-primary);
}

/* ========== 字符计数 ========== */
.form-char-count {
    position: relative;
}

.form-char-count-wrapper {
    position: relative;
}

.form-char-count-display {
    position: absolute;
    right: 12px;
    bottom: 12px;
    font-size: var(--cy-font-xs);
    color: var(--cy-text-muted);
}

.form-char-count-display.warning {
    color: var(--cy-warning);
}

.form-char-count-display.danger {
    color: var(--cy-danger);
}

/* ========== 表单分割线 ========== */
.form-divider {
    display: flex;
    align-items: center;
    gap: var(--cy-spacing-md);
    margin: var(--cy-spacing-lg) 0;
    color: var(--cy-text-muted);
    font-size: var(--cy-font-sm);
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--cy-border-light);
}

/* ========== 响应式表单 ========== */
@media screen and (max-width: 768px) {
    .form-container {
        padding: var(--cy-spacing-lg);
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-col-6,
    .form-col-4,
    .form-col-8 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
    
    .form-inline {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ========== 表单验证动画 ========== */
@keyframes form-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.form-shake {
    animation: form-shake 0.3s ease;
}

@keyframes form-highlight {
    0% { background: rgba(var(--cy-primary-rgb), 0.1); }
    100% { background: transparent; }
}

.form-highlight {
    animation: form-highlight 1s ease;
}