/* ============================================================
   modal.css — 模态框 & 预约表单弹窗
   全屏遮罩、缩放动画、表单元素、成功状态
   ============================================================ */

/* ----------------------------------------------------------
   遮罩层
   ---------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: var(--blur-sm);
  -webkit-backdrop-filter: var(--blur-sm);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  
  /* 默认隐藏 */
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base),
              visibility var(--transition-base);
}

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

/* 防止背景滚动 */
body.modal-open {
  overflow: hidden;
}

/* ----------------------------------------------------------
   模态框内容卡片
   ---------------------------------------------------------- */
.modal-content {
  background: var(--color-pure-white);
  border-radius: var(--radius-xl);
  padding: var(--space-12);
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.2);

  /* 缩放入场动画 */
  transform: scale(0.9) translateY(20px);
  opacity: 0;
  transition: transform var(--transition-cubic),
              opacity var(--transition-base);
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
  opacity: 1;
}

/* 模态框顶部装饰线 */
.modal-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-champagne-gold), transparent);
  border-radius: var(--radius-full);
}

/* 自定义滚动条 */
.modal-content::-webkit-scrollbar {
  width: 4px;
}

.modal-content::-webkit-scrollbar-track {
  background: transparent;
}

.modal-content::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-full);
}

/* ----------------------------------------------------------
   关闭按钮 — 圆形 X
   ---------------------------------------------------------- */
.modal-close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--color-pearl-white);
  color: var(--color-graphite-black);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-base);
  z-index: 1;
}

.modal-close:hover {
  background: var(--color-graphite-black);
  color: var(--color-pure-white);
  transform: rotate(90deg);
}

.modal-close:active {
  transform: rotate(90deg) scale(0.9);
}

/* ----------------------------------------------------------
   模态框标题
   ---------------------------------------------------------- */
.modal-title {
  font-family: var(--font-cn);
  font-size: 1.5rem;
  font-weight: var(--weight-bold);
  color: var(--color-graphite-black);
  margin-bottom: var(--space-2);
  padding-right: var(--space-12);
}

.modal-subtitle {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
}

/* ----------------------------------------------------------
   表单元素 — 浅色版本
   ---------------------------------------------------------- */
.modal-form .form-group {
  margin-bottom: var(--space-5);
}

.modal-form .form-label {
  display: block;
  color: var(--color-graphite-black);
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
  font-weight: var(--weight-medium);
}

/* 必填标记 */
.modal-form .form-label .required {
  color: #ef4444;
  margin-left: 2px;
}

.modal-form .form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-pearl-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  color: var(--color-graphite-black);
  font-size: var(--text-lg);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  box-sizing: border-box;
}

.modal-form .form-input:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gold-light);
}

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

/* 下拉选择框 */
.modal-form .form-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-pearl-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  color: var(--color-graphite-black);
  font-size: var(--text-lg);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  box-sizing: border-box;
  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='%2394A3B8' d='M6 8.825L1.175 4l.825-.825L6 7.175 10 3.175l.825.825L6 8.825z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.modal-form .form-select:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gold-light);
}

/* 文本域 */
.modal-form .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-pearl-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  color: var(--color-graphite-black);
  font-size: var(--text-lg);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  box-sizing: border-box;
  min-height: 100px;
  resize: vertical;
  font-family: var(--font-cn);
  line-height: var(--leading-relaxed);
}

.modal-form .form-textarea:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gold-light);
}

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

/* ----------------------------------------------------------
   手机号输入组 — 区号 + 号码
   ---------------------------------------------------------- */
.phone-input-group {
  display: flex;
  gap: var(--space-3);
}

.phone-code-select {
  width: 110px;
  flex-shrink: 0;
  padding: 12px 12px;
  background: var(--color-pearl-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  color: var(--color-graphite-black);
  font-size: var(--text-lg);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  box-sizing: border-box;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8.825L1.175 4l.825-.825L6 7.175 10 3.175l.825.825L6 8.825z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  font-family: var(--font-en);
}

.phone-code-select:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gold-light);
}

.phone-input {
  flex: 1;
  padding: 12px 16px;
  background: var(--color-pearl-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  color: var(--color-graphite-black);
  font-size: var(--text-lg);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
  box-sizing: border-box;
  font-family: var(--font-en);
  letter-spacing: var(--tracking-tight);
}

.phone-input:focus {
  border-color: var(--color-champagne-gold);
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gold-light);
}

.phone-input::placeholder {
  color: var(--color-text-muted);
  font-family: var(--font-cn);
}

/* ----------------------------------------------------------
   提交按钮 — 金色
   ---------------------------------------------------------- */
.modal-submit {
  width: 100%;
  padding: 14px;
  background: var(--color-champagne-gold);
  color: var(--color-pure-white);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  transition: all var(--transition-base);
  margin-top: var(--space-4);
  letter-spacing: var(--tracking-tight);
  position: relative;
  overflow: hidden;
}

.modal-submit:hover {
  background: var(--color-gold-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold-lg);
}

.modal-submit:active {
  transform: translateY(0);
  box-shadow: none;
}

/* 按钮加载状态 */
.modal-submit.loading {
  pointer-events: none;
  opacity: 0.7;
}

.modal-submit.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top-color: var(--color-pure-white);
  border-radius: 50%;
  animation: buttonSpin 0.6s linear infinite;
}

@keyframes buttonSpin {
  to {
    transform: rotate(360deg);
  }
}

/* ----------------------------------------------------------
   隐私提示
   ---------------------------------------------------------- */
.modal-privacy {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-4);
  line-height: var(--leading-relaxed);
}

.modal-privacy a {
  color: var(--color-champagne-gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.modal-privacy a:hover {
  text-decoration: none;
}

/* ----------------------------------------------------------
   成功状态 — 提交后反馈
   ---------------------------------------------------------- */
.modal-success {
  display: none;
  text-align: center;
  padding: var(--space-8) 0;
}

.modal-success.show {
  display: block;
  animation: successFadeIn 0.5s ease forwards;
}

@keyframes successFadeIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 成功图标 — 对勾圆圈 */
.success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  position: relative;
}

.success-icon::after {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(34, 197, 94, 0.2);
  animation: successRing 1s ease forwards;
}

@keyframes successRing {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* 对勾 SVG 路径动画 */
.success-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-pure-white);
}

.success-icon .checkmark-path {
  stroke-dasharray: 50;
  stroke-dashoffset: 50;
  animation: drawCheck 0.5s ease 0.3s forwards;
}

@keyframes drawCheck {
  to {
    stroke-dashoffset: 0;
  }
}

.success-title {
  font-size: 1.3rem;
  font-weight: var(--weight-bold);
  color: var(--color-graphite-black);
  margin-bottom: var(--space-3);
}

.success-text {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.success-close-btn {
  padding: 12px 32px;
  background: var(--color-pearl-white);
  color: var(--color-graphite-black);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: all var(--transition-base);
}

.success-close-btn:hover {
  background: var(--color-graphite-black);
  color: var(--color-pure-white);
  border-color: var(--color-graphite-black);
}

/* ----------------------------------------------------------
   表单验证错误状态
   ---------------------------------------------------------- */
.form-group.error .form-input,
.form-group.error .form-select,
.form-group.error .form-textarea,
.form-group.error .phone-input,
.form-group.error .phone-code-select {
  border-color: #ef4444;
}

.form-group.error .form-input:focus,
.form-group.error .form-select:focus,
.form-group.error .form-textarea:focus,
.form-group.error .phone-input:focus,
.form-group.error .phone-code-select:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error-msg {
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: var(--space-1);
  display: none;
}

.form-group.error .form-error-msg {
  display: block;
}

/* ----------------------------------------------------------
   响应式
   ---------------------------------------------------------- */
@media (max-width: 768px) {
  .modal-overlay {
    padding: var(--space-4);
    align-items: flex-end;
  }

  .modal-content {
    padding: var(--space-8) var(--space-6);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    max-height: 85vh;
  }

  .modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
  }

  /* 移动端从底部滑入 */
  .modal-content {
    transform: translateY(100%);
  }

  .modal-close {
    top: var(--space-4);
    right: var(--space-4);
    width: 32px;
    height: 32px;
  }

  .phone-input-group {
    flex-direction: column;
    gap: var(--space-2);
  }

  .phone-code-select {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .modal-content {
    padding: var(--space-6) var(--space-5);
  }
}