/* 通用表单、输入框、按钮、错误提示样式 */

.form-group {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.8);
  border-radius: var(--radius);
  border: 2px solid rgba(102, 126, 234, 0.1);
  padding: 0 1rem;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
  transition: all 0.3s ease;
  position: relative;
  margin: 0.5rem 0;
}
.form-group:has(.multi-select-container) {
  z-index: 999997;
}
.form-group:focus-within {
  border-color: var(--accent);
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.2);
  transform: translateY(-1px);
}
.form-group label {
  min-width: 40px;
  color: var(--accent);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.form-group:focus-within label {
  color: var(--accent2);
  transform: scale(1.1);
}
/* 修复弹窗内容区遮挡下拉 */
.modal-content, .card {
  overflow: visible !important;
}
.login-input, .styled-input, .styled-textarea {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  padding: 0.8rem 0.5rem;
  font-size: 1rem;
  color: var(--text);
  font-weight: 500;
}
.login-input:focus, .styled-input:focus, .styled-textarea:focus {
  background: rgba(255,255,255,0.5);
}
.login-input::placeholder, .styled-input::placeholder, .styled-textarea::placeholder {
  color: var(--muted);
  font-weight: 400;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}
.styled-textarea {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(102, 126, 234, 0.2);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.8);
  font-size: 1rem;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-color, #222);
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
  line-height: 1.5;
  outline: none;
  box-shadow: none;
  resize: vertical;
  min-height: 40px;
}
.styled-textarea::placeholder {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}
.multi-select-container {
  min-height: 40px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  cursor: text;
  gap: 0;
  position: relative;
  z-index: 999998;
}
.multi-select-input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 1rem;
  color: var(--text-color, #222);
  line-height: 1.5;
  padding: 4px 0;
  min-width: 80px;
  flex: 1;
  z-index: 9999;
}
.multi-select-tag {
  background: #e0e7ff;
  border: 1px solid #a5b4fc;
  color: #3730a3;
  border-radius: 8px;
  font-size: 0.98em;
  margin: 2px 4px 2px 0;
  padding: 2px 8px 2px 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.multi-select-tag-remove {
  cursor: pointer;
  color: #a0aec0;
  font-size: 1.1em;
  margin-left: 2px;
}
.multi-select-dropdown {
  position: absolute;
  left: 0;
  top: 100%;
  width: 100%;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 8px 32px rgba(102, 126, 234, 0.18);
  z-index: 999999;
  max-height: 220px;
  overflow-y: auto;
  font-size: 1em;
  margin-top: 2px;
  display: none;
}
.multi-select-dropdown.open {
  display: block;
}
.multi-select-option {
  padding: 8px 16px;
  cursor: pointer;
  color: var(--text-color, #222);
  transition: background 0.15s;
}
.multi-select-option:hover, .multi-select-option.active {
  background: #e0e7ff;
  color: #3730a3;
}
.multi-select-option.selected {
  background: #f1f5f9;
  color: #667eea;
  font-weight: 600;
}
.multi-select-placeholder {
  color: #a0aec0;
  font-size: 1em;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: none;
  margin-left: 2px;
}


/* 按钮样式 */
.btn, .btn-primary, .btn-secondary, .btn-danger, .login-btn {
  border: none;
  outline: none;
  border-radius: var(--radius);
  padding: 0.35rem 1rem;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin-right: 0.75rem;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.login-btn{
  width: 100%;
  height: 60px;
  font-size: 1.2rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white;
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
  font-weight: 600;
  text-align: center;
  display: block;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
  outline: none;
}
.btn-primary, .login-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: white;
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
}
.btn-primary:hover, .login-btn:hover {
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}
.btn-secondary {
  background: linear-gradient(135deg, #f7fafc, #edf2f7);
  color: var(--accent);
  border: 1px solid rgba(102, 126, 234, 0.2);
}
.btn-secondary:hover {
  background: linear-gradient(135deg, #edf2f7, #e2e8f0);
  color: var(--accent2);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}
.btn-danger {
  background: linear-gradient(135deg, var(--danger), #e53e3e);
  color: white;
  box-shadow: 0 4px 16px rgba(245, 101, 101, 0.3);
}
.btn-danger:hover {
  background: linear-gradient(135deg, #e53e3e, var(--danger));
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 101, 101, 0.4);
}
/* 成功提示*/
.form-success {
  color: #4caf50;
  background: #e8f5e9;
  border: 1px solid #4caf50;
  border-radius: 6px;
  padding: 10px 16px;
  margin-bottom: 16px;
  text-align: center;
  font-size: 15px;
}
/* 错误提示 */
.form-error {
  background: linear-gradient(135deg, rgba(245, 101, 101, 0.1), rgba(229, 62, 62, 0.1));
  border: 1px solid rgba(245, 101, 101, 0.3);
  color: var(--danger);
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  width: 100%;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: shake 0.5s ease;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}