:root {
  --primary-color: #ff6b00;
  --secondary-color: #2c3e50;
  --accent-color: #f39c12;
  --light-color: #f8f9fa;
  --dark-color: #343a40;
  --success-color: #28a745;
  --error-color: #dc3545;
  --border-color: #dee2e6;
  --shadow-color: rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: #f5f5f5;
  color: var(--dark-color);
  line-height: 1.6;
}

.container-ob {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.form-container-ob {
  background-color: white;
  border-radius: 10px;
  box-shadow: 0 5px 15px var(--shadow-color);
  padding: 30px;
  margin-bottom: 30px;
  margin-top: 20px;
}

h1 {
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 10px;
  font-size: 2rem;
}

.form-description-ob {
  text-align: center;
  color: var(--secondary-color);
  margin-bottom: 30px;
}

.form-section-ob {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.form-section-ob:last-child {
  border-bottom: none;
}

.form-section-ob h2 {
  color: var(--secondary-color);
  font-size: 1.3rem;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-color);
  display: inline-block;
}

.form-row-ob {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 15px;
  gap: 20px;
}

.form-group-ob {
  flex: 1 1 calc(50% - 10px);
  min-width: 250px;
  margin-bottom: 15px;
}

.full-width-ob {
  flex: 1 1 100%;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--secondary-color);
}

.required-ob {
  color: var(--error-color);
}

input,
select {
  width: 100%;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  font-size: 1rem;
  transition: border-color 0.3s;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(255, 107, 0, 0.2);
}

.checkbox-group-ob {
  display: flex;
  align-items: center;
  gap: 10px;
}

.checkbox-group-ob input {
  width: auto;
  margin-right: 10px;
}

.checkbox-group-ob label {
  margin-bottom: 0;
}

.total-section-ob {
  background-color: #f8f9fa;
  padding: 15px;
  border-radius: 5px;
  margin-bottom: 20px;
}

.total-amount-ob {
  display: flex;
  justify-content: space-between;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--secondary-color);
}

.form-actions-ob {
  display: flex;
  justify-content: space-between;
  gap: 15px;
}

.btn-primary-ob,
.btn-secondary-ob {
  padding: 12px 25px;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary-ob {
  background-color: var(--primary-color);
  color: white;
  flex: 2;
}

.btn-secondary-ob {
  background-color: #e9ecef;
  color: var(--secondary-color);
  flex: 1;
}

.btn-primary-ob:hover {
  background-color: #e05e00;
}

.btn-secondary-ob:hover {
  background-color: #dee2e6;
}

.success-message-ob {
  text-align: center;
  padding: 30px;
}

.success-message-ob i {
  font-size: 5rem;
  color: var(--success-color);
  margin-bottom: 20px;
}

.success-message-ob h2 {
  color: var(--success-color);
  margin-bottom: 15px;
}

.success-message-ob p {
  margin-bottom: 25px;
  font-size: 1.1rem;
}

.hidden-ob {
  display: none;
}

/* Error styling */
input.error-ob,
select.error-ob {
  border-color: var(--error-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .form-container-ob {
    padding: 20px;
  }

  .form-group-ob {
    flex: 1 1 100%;
  }

  .form-actions-ob {
    flex-direction: column;
  }

  .btn-primary-ob,
  .btn-secondary-ob {
    width: 100%;
    margin-bottom: 10px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  .form-section-ob h2 {
    font-size: 1.1rem;
  }
}