.registration-container {
  background-color: rgba(255, 255, 255, 0.95);
  border-radius: 20px;
  font-family: 'Poppins',serif;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  padding: 40px;
  width: 100%;
  max-width: 900px;
  margin: 40px auto;
  backdrop-filter: blur(10px);
}

.form-header {
  text-align: center;
  color: #1a202c;
  margin-bottom: 40px;
  font-size: 28px;
  font-weight: 700;
  position: relative;
  padding-bottom: 15px;
}

.form-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  border-radius: 2px;
}

.input-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  margin-bottom: 25px;
  width: 100%;
}

.input-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 25px;
  width: 100%;
}

.input-row .input-group {
  margin-bottom: 0;
}

.input-label {
  display: block;
  margin-bottom: 8px;
  color: #4a5568;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.5px;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.required-mark {
  color: #e53e3e;
  margin-left: 4px;
}

.alert {
  padding: 15px;
  border-radius: 6px;
  margin-bottom: 20px;
  display: none;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.form-input,
.form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 10px;
  font-size: 15px;
  transition: all 0.3s ease;
  background-color: white;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  box-sizing: border-box;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-input::placeholder {
  color: #a0aec0;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%234a5568' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
}

.submit-button {
  background: linear-gradient(90deg, #667eea, #764ba2);
  color: white;
  padding: 16px 30px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  width: 100%;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.3s ease;
  margin-top: 20px;
  text-transform: uppercase;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.1);
}

.submit-button:active {
  transform: translateY(0);
}

/* Responsive Design */
@media screen and (max-width: 768px) {
  .registration-container {
      padding: 25px 20px;
      margin: 15px auto;
      max-width: 95%;
  }

  .input-row {
      grid-template-columns: 1fr;
      gap: 15px;
  }

  .form-header {
      font-size: 24px;
      margin-bottom: 30px;
  }

  .input-group {
      margin-bottom: 15px;
  }
}

@media screen and (max-width: 480px) {
  .registration-container {
      padding: 20px 15px;
  }

  .form-header {
      font-size: 20px;
      margin-bottom: 25px;
  }

  .input-group {
      margin-bottom: 12px;
  }

  .form-input,
  .form-select {
      padding: 10px 14px;
      font-size: 14px;
  }

  .input-label {
      font-size: 14px;
      margin-bottom: 6px;
  }

  .submit-button {
      padding: 14px 20px;
      font-size: 15px;
      margin-top: 15px;
  }
}

/* Animation styles for notifications */
@keyframes slideIn {
  from {
      transform: translateX(100%);
      opacity: 0;
  }
  to {
      transform: translateX(0);
      opacity: 1;
  }
}

@keyframes slideOut {
  from {
      transform: translateX(0);
      opacity: 1;
  }
  to {
      transform: translateX(100%);
      opacity: 0;
  }
}