/**
 * 玲珑颜公共组件样式 — 按钮/卡片/弹窗/AI聊天窗/表单
 * BEM: lly- | 圆角: 卡片16px/按钮24px
 */

/* ==================== 按钮 ==================== */
.lly-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--lly-space-sm);
  padding: 12px 32px;
  border-radius: var(--lly-radius-btn);
  font-size: var(--lly-font-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--lly-transition);
  white-space: nowrap;
  border: 2px solid transparent;
}

.lly-btn--primary {
  background: linear-gradient(135deg, var(--lly-color-primary), var(--lly-color-primary-dark));
  color: var(--lly-color-white);
  box-shadow: var(--lly-shadow-sm);
}

.lly-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--lly-shadow-md);
  color: var(--lly-color-white);
}

.lly-btn--secondary {
  background: var(--lly-color-white);
  color: var(--lly-color-primary);
  border-color: var(--lly-color-primary);
}

.lly-btn--secondary:hover {
  background: var(--lly-color-primary);
  color: var(--lly-color-white);
}

.lly-btn--gold {
  background: linear-gradient(135deg, var(--lly-color-secondary), #C49A5E);
  color: var(--lly-color-white);
}

.lly-btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: var(--lly-shadow-md);
}

.lly-btn--ghost {
  background: transparent;
  color: var(--lly-color-text-light);
  border-color: var(--lly-color-border);
}

.lly-btn--ghost:hover {
  border-color: var(--lly-color-primary);
  color: var(--lly-color-primary);
}

.lly-btn--sm {
  padding: 8px 20px;
  font-size: var(--lly-font-sm);
}

.lly-btn--lg {
  padding: 16px 40px;
  font-size: var(--lly-font-lg);
}

.lly-btn--block {
  display: flex;
  width: 100%;
}

.lly-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==================== 卡片 ==================== */
.lly-card {
  background: var(--lly-color-white);
  border-radius: var(--lly-radius-card);
  padding: var(--lly-space-lg);
  box-shadow: var(--lly-shadow-sm);
  transition: transform var(--lly-transition), box-shadow var(--lly-transition);
}

.lly-card--hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--lly-shadow-lg);
}

.lly-card--bordered {
  border: 1px solid var(--lly-color-border);
  box-shadow: none;
}

.lly-card__title {
  font-family: var(--lly-font-serif);
  font-size: var(--lly-font-lg);
  font-weight: 600;
  margin-bottom: var(--lly-space-sm);
}

.lly-card__desc {
  font-size: var(--lly-font-sm);
  color: var(--lly-color-text-light);
  line-height: 1.6;
}

/* ==================== 徽章/标签 ==================== */
.lly-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--lly-radius-btn);
  font-size: var(--lly-font-xs);
  font-weight: 500;
}

.lly-badge--primary {
  background: rgba(192, 132, 151, 0.1);
  color: var(--lly-color-primary);
}

.lly-badge--gold {
  background: rgba(212, 175, 122, 0.15);
  color: #B8924E;
}

.lly-badge--tech {
  background: rgba(155, 142, 196, 0.1);
  color: var(--lly-color-tech);
}

/* ==================== 弹窗 ==================== */
.lly-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--lly-transition), visibility var(--lly-transition);
}

.lly-modal-overlay--active {
  opacity: 1;
  visibility: visible;
}

.lly-modal {
  background: var(--lly-color-white);
  border-radius: var(--lly-radius-card);
  padding: var(--lly-space-xl);
  max-width: 480px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  transform: scale(0.9);
  transition: transform var(--lly-transition);
}

.lly-modal-overlay--active .lly-modal {
  transform: scale(1);
}

.lly-modal__close {
  position: absolute;
  top: var(--lly-space-md);
  right: var(--lly-space-md);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--lly-color-text-muted);
  font-size: 20px;
  cursor: pointer;
  transition: all var(--lly-transition);
}

.lly-modal__close:hover {
  background: var(--lly-color-bg-alt);
  color: var(--lly-color-text);
}

.lly-modal__title {
  font-family: var(--lly-font-serif);
  font-size: var(--lly-font-xl);
  font-weight: 600;
  margin-bottom: var(--lly-space-md);
  color: var(--lly-color-text);
}

.lly-modal__body {
  font-size: var(--lly-font-base);
  color: var(--lly-color-text-light);
  line-height: 1.8;
}

/* ==================== AI 聊天窗 ==================== */
.lly-chat-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--lly-color-primary), var(--lly-color-primary-dark));
  color: var(--lly-color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  cursor: pointer;
  box-shadow: var(--lly-shadow-lg);
  z-index: 1500;
  transition: transform var(--lly-transition);
}

.lly-chat-fab:hover {
  transform: scale(1.1);
}

.lly-chat-fab__badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--lly-color-danger);
  color: var(--lly-color-white);
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  display: none;
}

.lly-chat-window {
  position: fixed;
  bottom: 96px;
  right: 24px;
  width: 380px;
  max-width: calc(100vw - 48px);
  height: 520px;
  max-height: calc(100vh - 120px);
  background: var(--lly-color-white);
  border-radius: var(--lly-radius-card);
  box-shadow: var(--lly-shadow-lg);
  z-index: 1500;
  display: none;
  flex-direction: column;
  overflow: hidden;
}

.lly-chat-window--active {
  display: flex;
  animation: lly-chat-open 0.3s ease;
}

@keyframes lly-chat-open {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.lly-chat-window__header {
  padding: var(--lly-space-md);
  background: linear-gradient(135deg, var(--lly-color-primary), var(--lly-color-primary-dark));
  color: var(--lly-color-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lly-chat-window__title {
  font-family: var(--lly-font-serif);
  font-size: var(--lly-font-base);
  font-weight: 600;
}

.lly-chat-window__close {
  color: var(--lly-color-white);
  font-size: 20px;
  cursor: pointer;
  opacity: 0.8;
  transition: opacity var(--lly-transition);
}

.lly-chat-window__close:hover {
  opacity: 1;
}

.lly-chat-window__messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--lly-space-md);
  background: var(--lly-color-bg);
}

.lly-chat-msg {
  margin-bottom: var(--lly-space-md);
  max-width: 85%;
}

.lly-chat-msg--user {
  margin-left: auto;
}

.lly-chat-msg__bubble {
  padding: 10px 16px;
  border-radius: 12px;
  font-size: var(--lly-font-sm);
  line-height: 1.6;
  word-break: break-word;
}

.lly-chat-msg--user .lly-chat-msg__bubble {
  background: var(--lly-color-primary);
  color: var(--lly-color-white);
  border-bottom-right-radius: 4px;
}

.lly-chat-msg--assistant .lly-chat-msg__bubble {
  background: var(--lly-color-white);
  color: var(--lly-color-text);
  border-bottom-left-radius: 4px;
  box-shadow: var(--lly-shadow-sm);
}

.lly-chat-window__input-area {
  padding: var(--lly-space-md);
  border-top: 1px solid var(--lly-color-border);
  display: flex;
  gap: var(--lly-space-sm);
}

.lly-chat-window__input {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid var(--lly-color-border);
  border-radius: var(--lly-radius-btn);
  font-size: var(--lly-font-sm);
  outline: none;
  transition: border-color var(--lly-transition);
}

.lly-chat-window__input:focus {
  border-color: var(--lly-color-primary);
}

.lly-chat-window__send {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--lly-color-primary);
  color: var(--lly-color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--lly-transition);
}

.lly-chat-window__send:hover {
  background: var(--lly-color-primary-dark);
}

.lly-chat-typing {
  display: inline-flex;
  gap: 4px;
  padding: 12px 16px;
}

.lly-chat-typing__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lly-color-text-muted);
  animation: lly-typing 1.4s infinite;
}

.lly-chat-typing__dot:nth-child(2) { animation-delay: 0.2s; }
.lly-chat-typing__dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes lly-typing {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); }
}

/* ==================== 表单 ==================== */
.lly-form-group {
  margin-bottom: var(--lly-space-md);
}

.lly-form-label {
  display: block;
  font-size: var(--lly-font-sm);
  color: var(--lly-color-text);
  margin-bottom: var(--lly-space-xs);
  font-weight: 500;
}

.lly-form-label--required::after {
  content: ' *';
  color: var(--lly-color-danger);
}

.lly-form-input,
.lly-form-textarea,
.lly-form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--lly-color-border);
  border-radius: var(--lly-radius-input);
  font-size: var(--lly-font-base);
  color: var(--lly-color-text);
  background: var(--lly-color-white);
  transition: border-color var(--lly-transition), box-shadow var(--lly-transition);
  outline: none;
}

.lly-form-input:focus,
.lly-form-textarea:focus,
.lly-form-select:focus {
  border-color: var(--lly-color-primary);
  box-shadow: 0 0 0 3px rgba(192, 132, 151, 0.1);
}

.lly-form-textarea {
  min-height: 100px;
  resize: vertical;
}

.lly-form-error {
  font-size: var(--lly-font-xs);
  color: var(--lly-color-danger);
  margin-top: var(--lly-space-xs);
}

.lly-form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--lly-space-sm);
}

.lly-form-checkbox input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  accent-color: var(--lly-color-primary);
}

/* ==================== Toast 提示 ==================== */
.lly-toast {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  padding: 12px 24px;
  border-radius: var(--lly-radius-btn);
  font-size: var(--lly-font-sm);
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--lly-transition);
}

.lly-toast--show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.lly-toast--success {
  background: var(--lly-color-success);
  color: var(--lly-color-white);
}

.lly-toast--error {
  background: var(--lly-color-danger);
  color: var(--lly-color-white);
}

.lly-toast--info {
  background: var(--lly-color-tech);
  color: var(--lly-color-white);
}