body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  text-align: center;
}

/* Navigation Bar Styles */
.navbar {
  background: #0a1f44;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
}

.nav-logo {
  color: #f5b400;
  text-decoration: none;
  font-weight: bold;
  font-size: 18px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
  padding: 8px 12px;
  border-bottom: 3px solid transparent;
}

.nav-links a:hover {
  color: #f5b400;
}

.nav-links a.active {
  color: #f5b400;
  border-bottom: 3px solid #f5b400;
}

/* Helpline Styles */
.helpline {
  background: #f5b400;
  padding: 10px 20px;
  text-align: center;
  font-weight: bold;
  color: #0a1f44;
}

.helpline p {
  margin: 0;
}

header {
  background: url("solar.jpg") center/cover no-repeat;
  height: 90vh;
  position: relative;
  color: white;
}

.overlay {
  background: rgba(0, 0, 0, 0.6);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

h1 {
  font-size: 48px;
}

.overlay h1 {
  margin: 0;
}

.overlay p {
  margin: 0 0 30px 0;
  font-size: 18px;
}

.btn {
  background: #f5b400;
  padding: 15px 30px;
  color: black;
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.btn:hover {
  background: #c99700;
  transform: translateY(-2px);
}

.btn-secondary {
  background: #0a1f44;
  color: white;
  padding: 12px 25px;
  font-size: 14px;
  margin: 20px 0;
}

section {
  padding: 60px 20px;
}

.cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.card {
  background: white;
  padding: 30px;
  width: 200px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Pricing Toggle & Table Styles */
.pricing-toggle {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 30px 0;
}

.toggle-btn {
  padding: 12px 30px;
  background: #e0e0e0;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  font-size: 14px;
  transition: all 0.3s ease;
  color: #333;
}

.toggle-btn:hover {
  background: #d0d0d0;
}

.toggle-btn.active {
  background: #f5b400;
  color: #0a1f44;
}

.pricing-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.pricing-content h3 {
  color: #0a1f44;
  font-size: 22px;
  margin: 20px 0 10px 0;
}

.pricing-table {
  max-width: 1000px;
  margin: 30px auto;
  overflow-x: auto;
}

.pricing-table table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  overflow: hidden;
  table-layout: fixed;
}

.pricing-table thead {
  background: #0a1f44;
  color: white;
}

.pricing-table th {
  padding: 18px 15px;
  text-align: center;
  font-weight: bold;
  font-size: 14px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.pricing-table th:last-child {
  border-right: none;
}

.pricing-table td {
  padding: 16px 15px;
  border-bottom: 1px solid #e0e0e0;
  font-size: 14px;
  color: #333;
  text-align: center;
}

.pricing-table tbody tr:hover {
  background: #f9f9f9;
  transition: background 0.2s ease;
}

.pricing-table tbody tr:last-child td {
  border-bottom: none;
}

.pricing-table td:first-child {
  font-weight: bold;
  color: #0a1f44;
  text-align: center;
}

.pricing-table th:first-child {
  text-align: center;
}

.pricing-table td:last-child {
  color: #f5b400;
  font-weight: bold;
  font-size: 15px;
  text-align: center;
}

form input,
form select {
  width: 60%;
  padding: 12px;
  margin: 10px auto;
  display: block;
}

.capacity-input {
  position: relative;
  display: inline-block;
  margin: 10px auto;
}

.capacity-input input {
  width: 300px;
  padding: 12px 50px 12px 12px;
  padding-right: 50px;
}

.capacity-unit {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: bold;
  color: #333;
  pointer-events: none;
}

button {
  padding: 12px 25px;
  background: #0a1f44;
  color: white;
  border: none;
}

.submit-row button {
  display: block;
  margin: 18px auto 0 auto;
  min-width: 200px;
}

footer {
  background: #0a1f44;
  color: white;
  padding: 20px;
}
/* Success Page Styles */
.success-container {
  background: url("solar.jpg") center/cover no-repeat;
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-overlay {
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-content {
  background: white;
  padding: 60px 40px;
  border-radius: 15px;
  max-width: 600px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  text-align: center;
  animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.success-icon {
  font-size: 80px;
  color: #4caf50;
  margin-bottom: 20px;
  font-weight: bold;
}

.success-title {
  font-size: 42px;
  color: #0a1f44;
  margin: 20px 0;
  font-weight: bold;
  text-shadow: 0 2px 4px rgba(245, 180, 0, 0.3);
}

.success-message {
  font-size: 18px;
  color: #333;
  line-height: 1.6;
  margin: 20px 0;
}

.success-details {
  background: #f0f8ff;
  padding: 20px;
  border-radius: 10px;
  margin: 25px 0;
  border-left: 5px solid #f5b400;
}

.success-details p {
  color: #0a1f44;
  font-size: 16px;
  margin: 0;
}

.btn-home {
  display: inline-block;
  margin-top: 30px;
  background: #f5b400;
  color: #0a1f44;
  padding: 15px 40px;
  text-decoration: none;
  font-weight: bold;
  border-radius: 5px;
  font-size: 16px;
  transition: all 0.3s ease;
}

.btn-home:hover {
  background: #c99700;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Form Validation Styles */
.error-message {
  color: #d32f2f;
  background-color: #ffebee;
  padding: 12px;
  margin: 10px auto;
  border-radius: 5px;
  max-width: 60%;
  border-left: 4px solid #d32f2f;
  font-weight: 500;
  display: none;
}

.error-message:not(:empty) {
  display: block;
}

form input:invalid:not(:placeholder-shown),
form select:invalid:not(:placeholder-shown) {
  border: 2px solid #d32f2f;
  background-color: #ffebee;
}

form input:valid:not(:placeholder-shown),
form select:valid:not(:placeholder-shown) {
  border: 2px solid #4caf50;
  background-color: #f1f8f6;
}
/* Complaint Section Styles */
.complaint {
  background-color: #f9f9f9;
}

.complaint-card {
  max-width: 700px;
  margin: 0 auto;
  background: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

form textarea {
  width: 60%;
  padding: 12px;
  margin: 10px auto;
  display: block;
  border: 2px solid #ddd;
  border-radius: 5px;
  font-family: Arial, sans-serif;
  font-size: 14px;
  resize: vertical;
}

form textarea:focus {
  outline: none;
  border: 2px solid #f5b400;
  background-color: #fffaf0;
}

form textarea:invalid:not(:placeholder-shown) {
  border: 2px solid #d32f2f;
  background-color: #ffebee;
}

form textarea:valid:not(:placeholder-shown) {
  border: 2px solid #4caf50;
  background-color: #f1f8f6;
}
/* Service & Maintenance Styles */
.service-maintenance {
  background: #f5f5f5;
  padding: 60px 20px;
}

.service-info {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin: 40px 0;
  flex-wrap: wrap;
}

.info-card {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  max-width: 300px;
  border-top: 5px solid #f5b400;
}

.info-card h3 {
  color: #0a1f44;
  font-size: 18px;
  margin: 10px 0;
}

.info-card p {
  color: #333;
  font-size: 16px;
  margin: 8px 0;
}

.service-card {
  max-width: 700px;
  margin: 40px auto 0;
  background: white;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.form-title {
  display: block;
  font-size: 16px;
  color: #0a1f44;
  margin-bottom: 20px;
  font-weight: 500;
}

form select {
  width: 60%;
  padding: 12px;
  margin: 10px auto;
  display: block;
  border: 2px solid #ddd;
  border-radius: 5px;
  font-family: Arial, sans-serif;
  font-size: 14px;
}

form select:focus {
  outline: none;
  border: 2px solid #f5b400;
  background-color: #fffaf0;
}