.container {
  max-width: 800px;
  margin: 0 auto;
/*   animation: fadeIn 0.6s ease-out; */
}


@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.headers {
  text-align: center;
	 background: linear-gradient(180deg, #6630C6 0%, #330F95 100%);


	padding: 31px;
    border-radius: 15px;
    margin-bottom: 10px;
}

.headers h1 {
  font-size: 45px !important;
  font-weight: 700;
  color:white;
  margin-bottom: 8px;
  line-height: 1.2;
}

.subtitle {
  font-size: 1.125rem;
  color: #64748b;
}

.calculator-card {
  background: #ffffff !important;
  border-radius: 16px !important;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  overflow: hidden;
  border: 1px solid #e2e8f0 !important;
}

.tabs {
  display: flex;
  background: #f1f5f9;
  border-bottom: 2px solid #cbd5e1 !important;
}

.tab-btn {
  flex: 1;
  padding: 18px 24px !important;
  font-size: 1rem;
  font-weight: 600;
  color: #64748b !important;
  background: transparent;
  border: none; 
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.tab-btn:hover {
  color: #2563eb;
  background: #eff6ff;
}

.tab-btn.active {
  color: #2563eb;
  background: #ffffff;
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: #2563eb;
}

.tab-content {
  display: none;
  padding: 40px;
  animation: slideIn 0.4s ease-out;
}

.tab-content.active {
  display: block;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.input-group {
  margin-bottom: 32px;
}

.input-group label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 10px;
}

.input-group input {
  width: 100%;
  padding: 16px 20px !important;
  font-size: 1.125rem;
  border: 2px solid #cbd5e1;
  border-radius: 12px !important;
  transition: all 0.3s ease;
  background: #ffffff;
  color: #1e293b;
}

.input-group input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 4px #dbeafe;
}

.input-group input::placeholder {
  color: #64748b;
}

.input-hint {
  font-size: 0.875rem;
  color: #64748b;
  margin-top: 8px;
  display: block;
}

.convert-btn {
  width: 100%;
  padding: 16px 32px !important;
  font-size: 1.125rem;
  font-weight: 600;
  color: #ffffff !important;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%) !important;
  border: none !important;
  border-radius: 12px !important;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
}

.convert-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.btn-icon {
  font-size: 1.5rem;
  transition: transform 0.3s ease;
}

.convert-btn:hover .btn-icon {
  transform: translateX(4px);
}

.result-section {
  margin-top: 32px;
  padding: 32px;
  background: #eff6ff;
  border-radius: 12px;
  border: 2px solid #dbeafe;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-content {
  width: 100%;
  text-align: center;
  animation: fadeInScale 0.5s ease-out;
}

.result-content.hidden {
  display: none;
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.result-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: #64748b;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.result-value {
  font-size: 3.5rem;
  font-weight: 700;
  color: #2563eb;
  margin-bottom: 20px;
}

.result-info {
  margin-top: 20px;
  padding: 16px;
  background: #ffffff;
  border-radius: 8px;
  border-left: 4px solid #2563eb;
}

.info-text {
  font-size: 0.9rem;
  color: #64748b;
  text-align: left;
}

.info-text strong {
  color: #2563eb;
}

.grade-scale {
  padding: 40px;
  background: #f1f5f9;
  border-top: 1px solid #cbd5e1;
}

.grade-scale h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #1e293b;
  margin-bottom: 20px;
  text-align: center;
}

.scale-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.scale-item {
  padding: 16px;
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #cbd5e1;
  transition: all 0.3s ease;
}

.scale-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  border-color: #2563eb;
}

.scale-label {
  font-weight: 600;
  color: #2563eb;
}

.scale-range {
  font-size: 0.875rem;
  color: #64748b;
}

.footer {
  text-align: center;
  margin-top: 32px;
  padding: 20px;
  color: #64748b;
  font-size: 0.9rem;
}


@media  (max-width:768px){
	.container{
		padding:0px !important;
		
	}
	.headers h1{
		font-size:35px !important
	}
	.tabs{
		display:block !important
	}
	.result-value{
		font-size:25px!important
	}
	.result-section{
		padding:14px !important
	}
	.grade-scale h3{
		font-size:20px !important
	}
}