:root {
    --primary-color: #de9406;
    --accent-color: #de9406;
    --background-color: #FFFDEE;
    --container-bg-color: #FFFFFF;
    --text-color: #333333;
    --font-family: 'Roboto', sans-serif;
}


.container-gratuity-calculator {
  font-family: var(--font-family);
  background-color: var(--background-color);
  display: flex;
  justify-content: center;
  align-items: center;
  height: auto;
  margin: 0;
  padding: 40px 20px;
  box-sizing: border-box;
}
.container-gratuity-calculator .containerr {
  background-color: var(--container-bg-color);
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  max-width: 500px;
  width: 100%;
  text-align: center;
}
.container-gratuity-calculator h1 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 1.75rem;
}
.container-gratuity-calculator p.subtitle {
  color: #6c757d;
  margin-bottom: 2rem;
}
.container-gratuity-calculator .input-group {
  margin-bottom: 1.5rem;
  text-align: left;
}
.container-gratuity-calculator .input-group label {
  display: block;
  color: var(--text-color);
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.container-gratuity-calculator .input-group input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s;
  box-sizing: border-box;
}
.container-gratuity-calculator .input-group input:focus {
  outline: none;
  border-color: var(--primary-color);
}
.container-gratuity-calculator .calculate-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  transition: background-color 0.3s, transform 0.1s;
}
.container-gratuity-calculator .calculate-btn:hover {
  background-color: #c07e05;
}
.container-gratuity-calculator .calculate-btn:active {
  transform: scale(0.98);
}
.container-gratuity-calculator .result-container {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e9ecef;
}
.container-gratuity-calculator #result {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.container-gratuity-calculator #result::before {
  content: "₹ ";
}
.container-gratuity-calculator .error-message {
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.5rem;
  text-align: left;
  display: none;
}