/* TG-Image高级表单系统 - 超级表单库 */

:root {
  --form-bg: var(--card-bg);
  --form-bg-focus: var(--bg-color);
  --form-text: var(--text-color);
  --form-text-light: var(--text-light);
  --form-border: var(--border-color);
  --form-border-focus: var(--primary-color);
  --form-shadow: var(--shadow-inner);
  --form-shadow-focus: 0 0 0 3px rgba(var(--primary-light-rgb), 0.15);
  --form-radius: var(--radius);
  --form-radius-sm: var(--radius-sm);
  --form-radius-lg: var(--radius-lg);
  --form-transition: var(--transition);
  --form-error: var(--error-color);
  --form-success: var(--success-color);
  --form-warning: var(--warning-color);
  --form-disabled-bg: var(--divider-color);
  --form-disabled-opacity: 0.6;
  --form-font: var(--font-sans);
}

body.dark-mode {
  --form-bg: var(--dark-card-bg);
  --form-bg-focus: var(--dark-bg);
  --form-text: var(--dark-text);
  --form-text-light: var(--dark-text-light);
  --form-border: var(--dark-border);
  --form-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
  --form-disabled-bg: var(--dark-divider);
}

/* 基础表单元素 */
.premium-form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

.premium-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--form-text);
  font-size: 0.95rem;
  transition: color var(--form-transition);
}

body.dark-mode .premium-label {
  color: var(--form-text);
}

.premium-input,
.premium-select,
.premium-textarea {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--form-text);
  background-color: var(--form-bg);
  border: 2px solid var(--form-border);
  border-radius: var(--form-radius);
  transition: all var(--form-transition);
  box-shadow: var(--form-shadow);
  -webkit-appearance: none;
  appearance: none;
  font-family: var(--form-font);
}

.premium-input:focus,
.premium-select:focus,
.premium-textarea:focus {
  outline: none;
  border-color: var(--form-border-focus);
  box-shadow: var(--form-shadow-focus);
  background-color: var(--form-bg-focus);
}

.premium-input::placeholder,
.premium-textarea::placeholder {
  color: var(--form-text-light);
  opacity: 0.7;
}

body.dark-mode .premium-input::placeholder,
body.dark-mode .premium-textarea::placeholder {
  color: var(--form-text-light);
}

/* 表单尺寸变体 */
.premium-input-sm,
.premium-select-sm,
.premium-textarea-sm {
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  border-radius: var(--form-radius-sm);
}

.premium-input-lg,
.premium-select-lg,
.premium-textarea-lg {
  padding: 1rem 1.25rem;
  font-size: 1.05rem;
  border-radius: var(--form-radius-lg);
}

/* 表单状态变体 */
.premium-input-success,
.premium-select-success,
.premium-textarea-success {
  border-color: var(--form-success);
}

.premium-input-success:focus,
.premium-select-success:focus,
.premium-textarea-success:focus {
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.premium-input-error,
.premium-select-error,
.premium-textarea-error {
  border-color: var(--form-error);
}

.premium-input-error:focus,
.premium-select-error:focus,
.premium-textarea-error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.premium-input-warning,
.premium-select-warning,
.premium-textarea-warning {
  border-color: var(--form-warning);
}

.premium-input-warning:focus,
.premium-select-warning:focus,
.premium-textarea-warning:focus {
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

/* 禁用状态 */
.premium-input:disabled,
.premium-select:disabled,
.premium-textarea:disabled,
.premium-input.disabled,
.premium-select.disabled,
.premium-textarea.disabled {
  opacity: var(--form-disabled-opacity);
  cursor: not-allowed;
  background-color: var(--form-disabled-bg);
}

/* 浮动标签效果 */
.premium-form-group-float {
  position: relative;
}

.premium-form-group-float .premium-label {
  position: absolute;
  top: 0.75rem;
  left: 1rem;
  margin: 0;
  padding: 0 0.25rem;
  background-color: var(--form-bg);
  font-size: 0.95rem;
  opacity: 0.7;
  transition: all var(--form-transition);
  pointer-events: none;
  transform-origin: left top;
}

.premium-form-group-float .premium-input:focus + .premium-label,
.premium-form-group-float .premium-textarea:focus + .premium-label,
.premium-form-group-float .premium-select:focus + .premium-label,
.premium-form-group-float .premium-input:not(:placeholder-shown) + .premium-label,
.premium-form-group-float .premium-textarea:not(:placeholder-shown) + .premium-label,
.premium-form-group-float .premium-select:not([value=""]):not(:focus) + .premium-label {
  transform: translateY(-1.4rem) scale(0.85);
  opacity: 1;
  color: var(--form-border-focus);
  background-color: var(--form-bg-focus);
}

.premium-form-group-float .premium-input,
.premium-form-group-float .premium-textarea,
.premium-form-group-float .premium-select {
  padding-top: 1.25rem;
  padding-bottom: 0.25rem;
}

/* 下拉选择框 */
.premium-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px 16px;
  padding-right: 2.5rem;
}

.premium-select:focus {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%234f46e5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

/* 复选框和单选框 */
.premium-checkbox-group,
.premium-radio-group {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  position: relative;
  cursor: pointer;
}

.premium-checkbox,
.premium-radio {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.premium-checkbox-mark,
.premium-radio-mark {
  position: relative;
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  margin-right: 0.5rem;
  background-color: var(--form-bg);
  border: 2px solid var(--form-border);
  transition: all var(--form-transition);
  flex-shrink: 0;
}

.premium-checkbox-mark {
  border-radius: var(--form-radius-sm);
}

.premium-radio-mark {
  border-radius: 50%;
}

.premium-checkbox:focus + .premium-checkbox-mark,
.premium-radio:focus + .premium-radio-mark {
  border-color: var(--form-border-focus);
  box-shadow: var(--form-shadow-focus);
}

.premium-checkbox:checked + .premium-checkbox-mark,
.premium-radio:checked + .premium-radio-mark {
  background-color: var(--form-border-focus);
  border-color: var(--form-border-focus);
}

.premium-checkbox:checked + .premium-checkbox-mark::after,
.premium-radio:checked + .premium-radio-mark::after {
  content: '';
  position: absolute;
  display: block;
}

.premium-checkbox:checked + .premium-checkbox-mark::after {
  left: 7px;
  top: 3px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.premium-radio:checked + .premium-radio-mark::after {
  top: 3px;
  left: 3px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: white;
}

.premium-checkbox:disabled + .premium-checkbox-mark,
.premium-radio:disabled + .premium-radio-mark,
.premium-checkbox.disabled + .premium-checkbox-mark,
.premium-radio.disabled + .premium-radio-mark {
  opacity: var(--form-disabled-opacity);
  cursor: not-allowed;
  background-color: var(--form-disabled-bg);
}

/* 开关样式 */
.premium-switch {
  position: relative;
  display: inline-block;
  width: 3rem;
  height: 1.5rem;
}

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

.premium-switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--form-border);
  border-radius: 1.5rem;
  transition: all var(--form-transition);
}

.premium-switch-slider::before {
  position: absolute;
  content: '';
  height: 1.1rem;
  width: 1.1rem;
  left: 0.2rem;
  bottom: 0.2rem;
  background-color: white;
  border-radius: 50%;
  transition: all var(--form-transition);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.premium-switch input:checked + .premium-switch-slider {
  background-color: var(--form-border-focus);
}

.premium-switch input:focus + .premium-switch-slider {
  box-shadow: var(--form-shadow-focus);
}

.premium-switch input:checked + .premium-switch-slider::before {
  transform: translateX(1.5rem);
}

.premium-switch input:disabled + .premium-switch-slider {
  opacity: var(--form-disabled-opacity);
  cursor: not-allowed;
}

/* 范围滑块 */
.premium-range {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--form-border);
  outline: none;
  padding: 0;
  margin: 0;
}

.premium-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--form-border-focus);
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: all var(--form-transition);
}

.premium-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--form-border-focus);
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: all var(--form-transition);
  border: none;
}

.premium-range::-webkit-slider-thumb:hover {
  background: var(--primary-light);
  transform: scale(1.1);
}

.premium-range::-moz-range-thumb:hover {
  background: var(--primary-light);
  transform: scale(1.1);
}

.premium-range:focus {
  outline: none;
}

.premium-range:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(var(--primary-light-rgb), 0.3);
}

.premium-range:focus::-moz-range-thumb {
  box-shadow: 0 0 0 3px rgba(var(--primary-light-rgb), 0.3);
}

.premium-range:disabled {
  opacity: var(--form-disabled-opacity);
  cursor: not-allowed;
}

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

.premium-file-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.premium-file-label {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  color: var(--form-text);
  background-color: var(--form-bg);
  border: 2px solid var(--form-border);
  border-radius: var(--form-radius);
  cursor: pointer;
  transition: all var(--form-transition);
}

.premium-file-label:hover {
  border-color: var(--form-border-focus);
  color: var(--form-border-focus);
}

.premium-file-label svg {
  margin-right: 0.5rem;
}

.premium-file-input:focus + .premium-file-label {
  outline: none;
  border-color: var(--form-border-focus);
  box-shadow: var(--form-shadow-focus);
}

.premium-file-input:disabled + .premium-file-label {
  opacity: var(--form-disabled-opacity);
  cursor: not-allowed;
  background-color: var(--form-disabled-bg);
}

/* 输入框组 */
.premium-input-group {
  display: flex;
  position: relative;
}

.premium-input-group .premium-input {
  flex: 1 1 auto;
  width: 1%;
}

.premium-input-group-prepend,
.premium-input-group-append {
  display: flex;
  align-items: center;
  padding: 0 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--form-text-light);
  background-color: var(--form-bg);
  border: 2px solid var(--form-border);
  border-radius: 0;
}

.premium-input-group-prepend {
  border-right: 0;
  border-top-left-radius: var(--form-radius);
  border-bottom-left-radius: var(--form-radius);
}

.premium-input-group-append {
  border-left: 0;
  border-top-right-radius: var(--form-radius);
  border-bottom-right-radius: var(--form-radius);
}

.premium-input-group .premium-input:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.premium-input-group .premium-input:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* 表单反馈消息 */
.premium-form-feedback {
  margin-top: 0.5rem;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.premium-form-feedback-error {
  color: var(--form-error);
}

.premium-form-feedback-success {
  color: var(--form-success);
}

.premium-form-feedback-warning {
  color: var(--form-warning);
}

.premium-form-feedback svg {
  width: 16px;
  height: 16px;
}

/* 玻璃态表单 */
.premium-form-glass .premium-input,
.premium-form-glass .premium-select,
.premium-form-glass .premium-textarea {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

body.dark-mode .premium-form-glass .premium-input,
body.dark-mode .premium-form-glass .premium-select,
body.dark-mode .premium-form-glass .premium-textarea {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 表单行内布局 */
.premium-form-inline {
  display: flex;
  flex-flow: row wrap;
  align-items: center;
  gap: 1rem;
}

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

/* 搜索输入框 */
.premium-search {
  position: relative;
}

.premium-search .premium-input {
  padding-left: 2.5rem;
}

.premium-search-icon {
  position: absolute;
  top: 50%;
  left: 0.75rem;
  transform: translateY(-50%);
  color: var(--form-text-light);
  pointer-events: none;
}

/* 可清除输入框 */
.premium-input-clearable {
  position: relative;
}

.premium-input-clearable .premium-input {
  padding-right: 2.5rem;
}

.premium-input-clear-button {
  position: absolute;
  top: 50%;
  right: 0.75rem;
  transform: translateY(-50%);
  color: var(--form-text-light);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--form-transition);
  opacity: 0.7;
}

.premium-input-clear-button:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.05);
}

body.dark-mode .premium-input-clear-button:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 密码显示切换 */
.premium-password {
  position: relative;
}

.premium-password .premium-input {
  padding-right: 2.5rem;
}

.premium-password-toggle {
  position: absolute;
  top: 50%;
  right: 0.75rem;
  transform: translateY(-50%);
  color: var(--form-text-light);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--form-transition);
  opacity: 0.7;
}

.premium-password-toggle:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.05);
}

body.dark-mode .premium-password-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* 数量输入器 */
.premium-number-input {
  display: flex;
  border: 2px solid var(--form-border);
  border-radius: var(--form-radius);
  overflow: hidden;
}

.premium-number-input-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  background: var(--form-bg);
  border: none;
  color: var(--form-text);
  cursor: pointer;
  transition: all var(--form-transition);
}

.premium-number-input-button:hover {
  background: rgba(var(--primary-light-rgb), 0.1);
  color: var(--form-border-focus);
}

.premium-number-input .premium-input {
  border: none;
  border-radius: 0;
  text-align: center;
  -moz-appearance: textfield;
}

.premium-number-input .premium-input::-webkit-outer-spin-button,
.premium-number-input .premium-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* 颜色选择器 */
.premium-color-picker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.premium-color-input {
  -webkit-appearance: none;
  width: 40px;
  height: 40px;
  border: none;
  cursor: pointer;
  background: none;
}

.premium-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.premium-color-input::-webkit-color-swatch {
  border-radius: var(--form-radius-sm);
  border: 2px solid var(--form-border);
}

.premium-color-input::-moz-color-swatch {
  border-radius: var(--form-radius-sm);
  border: 2px solid var(--form-border);
}

.premium-color-value {
  flex: 1;
}

/* 标签输入 */
.premium-tags-input {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 0.5rem;
  gap: 0.5rem;
  background-color: var(--form-bg);
  border: 2px solid var(--form-border);
  border-radius: var(--form-radius);
  transition: all var(--form-transition);
}

.premium-tags-input:focus-within {
  border-color: var(--form-border-focus);
  box-shadow: var(--form-shadow-focus);
}

.premium-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  background: rgba(var(--primary-light-rgb), 0.1);
  color: var(--form-border-focus);
  border-radius: var(--form-radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
}

.premium-tag-remove {
  margin-left: 0.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  width: 18px;
  height: 18px;
}

.premium-tag-remove:hover {
  background: rgba(var(--primary-light-rgb), 0.2);
}

.premium-tags-input-field {
  flex: 1;
  min-width: 120px;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.95rem;
  color: var(--form-text);
  font-family: var(--form-font);
}

/* 自动完成 */
.premium-autocomplete {
  position: relative;
}

.premium-autocomplete-items {
  position: absolute;
  border: 1px solid var(--form-border);
  border-radius: var(--form-radius-sm);
  z-index: 99;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 200px;
  overflow-y: auto;
  background-color: var(--form-bg);
  box-shadow: var(--shadow);
  margin-top: 0.25rem;
}

.premium-autocomplete-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: all var(--form-transition);
}

.premium-autocomplete-item:hover {
  background-color: rgba(var(--primary-light-rgb), 0.1);
}

.premium-autocomplete-item.active {
  background-color: rgba(var(--primary-light-rgb), 0.2);
  color: var(--form-border-focus);
}

/* 媒体查询 - 响应式表单 */
@media (max-width: 768px) {
  .premium-input,
  .premium-select,
  .premium-textarea {
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
  }
  
  .premium-input-lg,
  .premium-select-lg,
  .premium-textarea-lg {
    padding: 0.85rem 1rem;
    font-size: 1rem;
  }
  
  .premium-form-inline {
    flex-direction: column;
    align-items: stretch;
  }
  
  .premium-form-inline .premium-form-group {
    width: 100%;
    margin-bottom: 1rem;
  }
}

/* 降级和辅助功能支持 */
@supports not (backdrop-filter: blur(10px)) {
  .premium-form-glass .premium-input,
  .premium-form-glass .premium-select,
  .premium-form-glass .premium-textarea {
    background: rgba(255, 255, 255, 0.8);
  }
  
  body.dark-mode .premium-form-glass .premium-input,
  body.dark-mode .premium-form-glass .premium-select,
  body.dark-mode .premium-form-glass .premium-textarea {
    background: rgba(30, 41, 59, 0.8);
  }
}

@media (prefers-reduced-motion: reduce) {
  .premium-input,
  .premium-select,
  .premium-textarea,
  .premium-checkbox-mark,
  .premium-radio-mark,
  .premium-switch-slider,
  .premium-file-label,
  .premium-range {
    transition: none !important;
  }
}