/* pages/gpa/gpa.wxss */
.container {
  min-height: 100vh;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  padding: 30rpx;
  animation: fadeIn 0.5s ease-out;
}

/* GPA卡片 */
.gpa-card {
  background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
  border-radius: 24rpx;
  padding: 50rpx 30rpx;
  text-align: center;
  color: #ffffff;
  margin-bottom: 30rpx;
  box-shadow: 0 12rpx 32rpx rgba(255, 107, 107, 0.4);
  animation: scaleIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.gpa-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30rpx, 30rpx); }
}

.gpa-label {
  font-size: 28rpx;
  opacity: 0.95;
  margin-bottom: 15rpx;
  position: relative;
  letter-spacing: 2rpx;
}

.gpa-value {
  font-size: 96rpx;
  font-weight: bold;
  margin-bottom: 15rpx;
  position: relative;
  text-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.2);
  animation: pulse 2s ease-in-out infinite;
}

.credits-info {
  font-size: 26rpx;
  opacity: 0.9;
  position: relative;
}

/* 表单卡片 */
.form-card {
  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
  border-radius: 20rpx;
  padding: 35rpx;
  margin-bottom: 30rpx;
  box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.08);
  animation: slideInUp 0.6s ease-out 0.2s both;
}

.form-title {
  font-size: 34rpx;
  font-weight: bold;
  color: #333333;
  margin-bottom: 30rpx;
  position: relative;
  padding-bottom: 15rpx;
}

.form-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60rpx;
  height: 4rpx;
  background: linear-gradient(to right, #FF6B6B, #FF8E8E);
  border-radius: 2rpx;
}

.form-row {
  margin-bottom: 25rpx;
}

.form-row-group {
  display: flex;
  gap: 20rpx;
  margin-bottom: 25rpx;
}

.form-row.half {
  flex: 1;
  margin-bottom: 0;
}

.form-input {
  width: 100%;
  height: 88rpx;
  padding: 0 28rpx;
  background-color: #f8f9fa;
  border: 2rpx solid #e9ecef;
  border-radius: 16rpx;
  font-size: 28rpx;
  box-sizing: border-box;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input:focus {
  background-color: #ffffff;
  border-color: #FF6B6B;
  box-shadow: 0 0 0 4rpx rgba(255, 107, 107, 0.1);
}

.add-btn {
  width: 100%;
  height: 96rpx;
  line-height: 96rpx;
  background: linear-gradient(135deg, #FF6B6B 0%, #FF8E8E 100%);
  color: #ffffff;
  border-radius: 48rpx;
  font-size: 32rpx;
  font-weight: bold;
  box-shadow: 0 8rpx 20rpx rgba(255, 107, 107, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.add-btn:active {
  transform: scale(0.98);
  box-shadow: 0 4rpx 12rpx rgba(255, 107, 107, 0.3);
}

/* 课程列表 */
.courses-section {
  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
  border-radius: 20rpx;
  padding: 35rpx;
  margin-bottom: 30rpx;
  box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.08);
  animation: slideInUp 0.6s ease-out 0.3s both;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30rpx;
}

.section-title {
  font-size: 34rpx;
  font-weight: bold;
  color: #333333;
  position: relative;
  padding-bottom: 10rpx;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50rpx;
  height: 3rpx;
  background: linear-gradient(to right, #FF6B6B, #FF8E8E);
  border-radius: 2rpx;
}

.clear-btn {
  font-size: 26rpx;
  color: #FF6B6B;
  padding: 12rpx 24rpx;
  background-color: rgba(255, 107, 107, 0.1);
  border-radius: 20rpx;
  transition: all 0.3s ease;
}

.clear-btn:active {
  background-color: rgba(255, 107, 107, 0.2);
  transform: scale(0.95);
}

.course-item {
  display: flex;
  align-items: center;
  padding: 30rpx;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-radius: 16rpx;
  margin-bottom: 20rpx;
  box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.06);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  animation: slideInLeft 0.5s ease-out;
}

.course-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6rpx;
  background: linear-gradient(to bottom, #FF6B6B, #FF8E8E);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.course-item:active::before {
  transform: scaleY(1);
}

.course-item:active {
  transform: translateX(8rpx);
  box-shadow: 0 6rpx 16rpx rgba(0, 0, 0, 0.1);
}

.course-item:last-child {
  margin-bottom: 0;
}

.course-item:nth-child(1) { animation-delay: 0.1s; }
.course-item:nth-child(2) { animation-delay: 0.15s; }
.course-item:nth-child(3) { animation-delay: 0.2s; }
.course-item:nth-child(4) { animation-delay: 0.25s; }
.course-item:nth-child(5) { animation-delay: 0.3s; }

.course-info {
  flex: 1;
}

.course-name {
  font-size: 32rpx;
  font-weight: bold;
  color: #333333;
  margin-bottom: 12rpx;
}

.course-details {
  display: flex;
  gap: 30rpx;
}

.detail-item {
  font-size: 24rpx;
  color: #666666;
  padding: 6rpx 16rpx;
  background-color: rgba(255, 107, 107, 0.08);
  border-radius: 12rpx;
}

.delete-btn {
  font-size: 44rpx;
  padding: 12rpx;
  color: #ff4757;
  transition: all 0.3s ease;
}

.delete-btn:active {
  transform: scale(1.2) rotate(90deg);
  color: #ff6b6b;
}

/* 提示卡片 */
.tips-card {
  background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
  border-radius: 20rpx;
  padding: 35rpx;
  box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.08);
  animation: slideInUp 0.6s ease-out 0.4s both;
}

.tips-title {
  font-size: 30rpx;
  font-weight: bold;
  color: #333333;
  margin-bottom: 24rpx;
  position: relative;
  padding-left: 20rpx;
}

.tips-title::before {
  content: '💡';
  position: absolute;
  left: 0;
  top: -2rpx;
  font-size: 32rpx;
}

.tips-content {
  font-size: 26rpx;
  color: #666666;
  line-height: 2.2;
  padding-left: 20rpx;
}

.tip-item {
  margin-bottom: 12rpx;
  position: relative;
  padding-left: 24rpx;
  animation: fadeIn 0.8s ease-out;
}

.tip-item::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #FF6B6B;
  font-weight: bold;
  font-size: 32rpx;
  line-height: 1.5;
}

.tip-item:nth-child(1) { animation-delay: 0.5s; }
.tip-item:nth-child(2) { animation-delay: 0.6s; }
.tip-item:nth-child(3) { animation-delay: 0.7s; }
.tip-item:nth-child(4) { animation-delay: 0.8s; }
.tip-item:nth-child(5) { animation-delay: 0.9s; }