/* 按钮增强样式 */
:root {
  /* 按钮色彩系统 */
  --btn-primary-gradient: linear-gradient(135deg, #4481eb, #04befe);
  --btn-primary-hover-gradient: linear-gradient(135deg, #04befe, #4481eb);
  --btn-danger-gradient: linear-gradient(135deg, #ff6b6b, #ff8e8e);
  --btn-danger-hover-gradient: linear-gradient(135deg, #ff8e8e, #ff6b6b);
  --btn-info-gradient: linear-gradient(135deg, #37cfdc, #5a9bff); 
  --btn-info-hover-gradient: linear-gradient(135deg, #5a9bff, #37cfdc);
  --btn-secondary-gradient: linear-gradient(135deg, #a1a8b9, #8990a3);
  --btn-secondary-hover-gradient: linear-gradient(135deg, #8990a3, #a1a8b9);
  --btn-success-gradient: linear-gradient(135deg, #34c471, #74e39a);
  --btn-success-hover-gradient: linear-gradient(135deg, #74e39a, #34c471);
  
  /* 按钮阴影 */
  --btn-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
  --btn-hover-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
  --btn-active-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 主按钮样式重构 */
.btn-modern {
  border-radius: 12px;
  border: none;
  padding: 10px 20px;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: var(--btn-shadow);
  text-transform: none;
  letter-spacing: 0.3px;
  font-size: 0.95rem;
}

.btn-modern::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.btn-modern:hover::after {
  opacity: 1;
}

.btn-modern:active {
  transform: translateY(1px);
  box-shadow: var(--btn-active-shadow);
}

/* 主要按钮 - 蓝色 */
.btn-modern.btn-primary {
  background: var(--btn-primary-gradient);
  color: white;
}

.btn-modern.btn-primary:hover {
  background: var(--btn-primary-hover-gradient);
}

/* 危险按钮 - 红色 */
.btn-modern.btn-danger {
  background: var(--btn-danger-gradient);
  color: white;
}

.btn-modern.btn-danger:hover {
  background: var(--btn-danger-hover-gradient);
}

/* 信息按钮 - 青色 */
.btn-modern.btn-info {
  background: var(--btn-info-gradient);
  color: white;
}

.btn-modern.btn-info:hover {
  background: var(--btn-info-hover-gradient);
}

/* 次要按钮 - 灰色 */
.btn-modern.btn-secondary {
  background: var(--btn-secondary-gradient);
  color: white;
}

.btn-modern.btn-secondary:hover {
  background: var(--btn-secondary-hover-gradient);
}

/* 成功按钮 - 绿色 */
.btn-modern.btn-success {
  background: var(--btn-success-gradient);
  color: white;
}

.btn-modern.btn-success:hover {
  background: var(--btn-success-hover-gradient);
}

/* 轮廓按钮 */
.btn-modern.btn-outline-primary {
  background: white;
  color: #4481eb;
  border: 2px solid rgba(68, 129, 235, 0.3);
}

.btn-modern.btn-outline-primary:hover {
  background: rgba(68, 129, 235, 0.05);
  border-color: #4481eb;
}

.btn-modern.btn-outline-secondary {
  background: white;
  color: #8990a3;
  border: 2px solid rgba(137, 144, 163, 0.3);
}

.btn-modern.btn-outline-secondary:hover {
  background: rgba(137, 144, 163, 0.05);
  border-color: #8990a3;
}

/* 发送按钮 - 圆形 */
.send-btn-modern {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-primary-gradient);
  color: white;
  box-shadow: var(--btn-shadow);
  border: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.send-btn-modern:hover {
  transform: translateY(-2px) rotate(10deg);
  box-shadow: var(--btn-hover-shadow);
}

.send-btn-modern:active {
  transform: translateY(1px);
  box-shadow: var(--btn-active-shadow);
}

.send-btn-modern::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 50%;
}

.send-btn-modern:hover::after {
  opacity: 1;
}

/* 控制按钮组 */
.btn-control-group {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.btn-modern.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
  border-radius: 10px;
}

.btn-modern.btn-lg {
  padding: 12px 24px;
  font-size: 1.05rem;
  border-radius: 14px;
}

/* 按钮图标增强 */
.btn-modern i {
  margin-right: 8px;
  font-size: 1.1em;
  vertical-align: -1px;
  transition: transform 0.3s ease;
}

.btn-modern:hover i {
  transform: translateX(-2px);
}

.send-btn-modern i {
  margin-right: 0;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.send-btn-modern:hover i {
  transform: translateX(2px);
}

/* 隐藏发送按钮的文字内容 */
.send-btn-modern span {
  display: none;
}

/* 确保发送图标居中显示 */
.send-btn-modern {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

/* 按钮动画 */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(68, 129, 235, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(68, 129, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(68, 129, 235, 0); }
}

.btn-modern.pulse {
  animation: pulse 1.5s infinite;
}

/* 按钮加载状态 */
.btn-modern.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.8;
}

.btn-modern.loading span {
  visibility: hidden;
}

.btn-modern.loading::before {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: calc(50% - 8px);
  left: calc(50% - 8px);
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

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

/* 输入框增强 */
.input-modern {
  border-radius: 14px;
  border: 2px solid rgba(0, 0, 0, 0.08);
  padding: 12px 20px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
  background-color: #fff;
  font-size: 0.95rem;
}

.input-modern:focus {
  border-color: rgba(68, 129, 235, 0.5);
  box-shadow: 0 3px 10px rgba(68, 129, 235, 0.1);
  outline: none;
}

.input-group-modern {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* 状态切换按钮 */
.status-toggle-btn {
  background: white;
  border: 2px solid rgba(0, 0, 0, 0.1);
  color: #555;
  padding: 5px 15px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.status-toggle-btn:hover {
  border-color: rgba(68, 129, 235, 0.5);
  color: #4481eb;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.status-toggle-btn i {
  margin-right: 5px;
  transition: transform 0.3s ease;
}

.status-toggle-btn:hover i {
  transform: rotate(180deg);
}

/* 保存和结束按钮卡片 */
.action-btn-card {
  background: white;
  border-radius: 12px;
  padding: 15px;
  display: flex;
  gap: 10px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  margin-top: 15px;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .btn-modern {
    padding: 8px 16px;
    font-size: 0.9rem;
  }
  
  .input-group-modern {
    flex-direction: column;
  }
  
  .send-btn-modern {
    width: 40px;
    height: 40px;
  }
  
  .action-btn-card {
    flex-direction: column;
  }
}