.container-gpacgpa-calculator {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #ecd9b3 0%, #f5e6c6 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  /* Dark mode support */
}
.container-gpacgpa-calculator .containerr {
  background: rgba(222, 148, 6, 0.08);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(222, 148, 6, 0.1);
  padding: 40px;
  width: 100%;
  max-width: 600px;
  animation: slideUp 0.6s ease-out;
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.container-gpacgpa-calculator .headerr h1 {
  color: #2c1a00;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  background: linear-gradient(135deg, #de9406, #ffd27a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.container-gpacgpa-calculator .scale-selector select,
.container-gpacgpa-calculator .semester-input {
  border: 2px solid #ffd27a;
  border-radius: 12px;
  font-size: 1rem;
  background: white;
  color: #2c1a00;
  transition: all 0.3s ease;
  cursor: pointer;
  padding: 10px;
  width: 100%;
}

.container-gpacgpa-calculator .semester-inputs {
  display: flex;
  flex-direction: column;
  gap: 20px;

}

.container-gpacgpa-calculator .scale-selector select:focus,
.container-gpacgpa-calculator .semester-input:focus {
  outline: none;
  border-color: #de9406;
  box-shadow: 0 0 0 3px rgba(222, 148, 6, 0.1);
}
.container-gpacgpa-calculator .semester-input:valid {
  border-color: #de9406;
}
.container-gpacgpa-calculator .btn-add {
  background: linear-gradient(135deg, #de9406, #ffd27a);
  padding: 10px 20px;
  color: #2c1a00;
}
.container-gpacgpa-calculator .btn-add:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(222, 148, 6, 0.3);
}
.container-gpacgpa-calculator .btn-delete {
  background: linear-gradient(135deg, #de9406, #b37405);
  padding: 10px 20px; 
  color: #fff;
}
.container-gpacgpa-calculator .btn-delete:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(222, 148, 6, 0.3);
}
.container-gpacgpa-calculator .calculate-btn {
  width: 100%;
  padding: 18px;
  background: linear-gradient(135deg, #de9406, #ffd27a);
  color: #2c1a00;
  border: none;
  border-radius: 12px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 20px;
}
.container-gpacgpa-calculator .calculate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(222, 148, 6, 0.3);
}
.container-gpacgpa-calculator .result {
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, #fffbe6, #ffd27a);
  border-radius: 12px;
  margin-top: 20px;
  display: none;
  animation: slideDown 0.4s ease-out;
}
.container-gpacgpa-calculator .cgpa-value {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #de9406, #ffd27a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.container-gpacgpa-calculator .error {
  color: #de9406;
  text-align: center;
  margin-top: 10px;
  font-weight: 600;
}
@media (prefers-color-scheme: dark) {
  .container-gpacgpa-calculator body {
    background: linear-gradient(135deg, #2c1a00 0%, #3d2600 100%);
  }
  .container-gpacgpa-calculator .containerr {
    background: rgba(44, 26, 0, 0.9);
    color: #ffd27a;
  }
  .container-gpacgpa-calculator .headerr h1,
  .container-gpacgpa-calculator .scale-selector label,
  .container-gpacgpa-calculator .result h3 {
    color: #ffd27a;
  }
  .container-gpacgpa-calculator .headerr p {
    color: #ffd27a;
  }
  .container-gpacgpa-calculator .semester-input,
  .container-gpacgpa-calculator .scale-selector select {
    background: rgba(222, 148, 6, 0.1);
    border-color: rgba(222, 148, 6, 0.2);
    color: #de9406;
  }
  .container-gpacgpa-calculator .semester-input::placeholder {
    color: #ffd27a;
  }
  .container-gpacgpa-calculator .result {
    background: rgba(222, 148, 6, 0.1);
  }
}