* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #10B77F;
  --secondary-color: #0D8B63;
  --dark-bg: #0F172A;
  --light-bg: #F8FAFC;
  --text-dark: #1E293B;
  --text-light: #64748B;
  --border-color: #E2E8F0;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: #FFFFFF;
}

/* Header */
header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: white;
}

nav a {
  color: white;
  text-decoration: none;
  margin-left: 2rem;
  font-size: 0.95rem;
  transition: opacity 0.3s;
}

nav a:hover {
  opacity: 0.8;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.cta-button {
  display: inline-block;
  background-color: white;
  color: var(--primary-color);
  padding: 1rem 2.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Sections */
section {
  padding: 4rem 2rem;
}

section h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: var(--text-dark);
  text-align: center;
}

section h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* What is Section */
.what-is {
  background-color: var(--light-bg);
}

.what-is-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.what-is-content p {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.course-info {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.course-info-item {
  display: flex;
  margin-bottom: 1.5rem;
}

.course-info-icon {
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.course-info-text h4 {
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.course-info-text p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin: 0;
}

/* Pros and Cons */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}

.pros, .cons {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.pros h3, .cons h3 {
  margin-top: 0;
}

.pros h3 {
  color: var(--success);
}

.cons h3 {
  color: var(--danger);
}

.pros ul, .cons ul {
  list-style: none;
}

.pros li, .cons li {
  padding: 0.75rem 0;
  padding-left: 2rem;
  position: relative;
  color: var(--text-light);
}

.pros li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: bold;
  font-size: 1.2rem;
}

.cons li:before {
  content: "✗";
  position: absolute;
  left: 0;
  color: var(--danger);
  font-weight: bold;
  font-size: 1.2rem;
}

/* My Experience */
.my-experience {
  background-color: var(--light-bg);
}

.experience-card {
  background: white;
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  border-left: 5px solid var(--primary-color);
}

.experience-card p {
  color: var(--text-light);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.experience-card strong {
  color: var(--text-dark);
}

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.testimonial-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  border-top: 3px solid var(--primary-color);
}

.testimonial-header {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-weight: bold;
}

.testimonial-info h4 {
  margin: 0;
  color: var(--text-dark);
}

.testimonial-info p {
  margin: 0;
  color: var(--text-light);
  font-size: 0.9rem;
}

.testimonial-text {
  color: var(--text-light);
  font-style: italic;
  margin-bottom: 1rem;
}

.stars {
  color: var(--warning);;
}

/* Price Section */
.price-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: white;
  text-align: center;
}

.price-section h2 {
  color: white;
}

.price-card {
  background: white;
  color: var(--text-dark);
  padding: 2rem;
  border-radius: 12px;
  margin-top: 2rem;
  display: inline-block;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.price-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 1rem 0;
}

.price-description {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

/* Comparison Table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  background: white;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  overflow: hidden;
}

.comparison-table th {
  background-color: var(--primary-color);
  color: white;
  padding: 1.5rem;
  text-align: left;
  font-weight: 600;
}

.comparison-table td {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

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

.comparison-table tr:hover {
  background-color: var(--light-bg);
}

.check {
  color: var(--success);
  font-weight: bold;
}

.cross {
  color: var(--danger);
}

/* FAQ */
.faq-item {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.faq-question {
  padding: 1.5rem;
  background-color: var(--light-bg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  color: var(--text-dark);
  transition: background-color 0.3s;
}

.faq-question:hover {
  background-color: #E2E8F0;
}

.faq-toggle {
  font-size: 1.5rem;
  transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 1.5rem;
  color: var(--text-light);
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  display: block;
}

/* Disclaimer */
.disclaimer {
  background-color: #FEF3C7;
  border-left: 4px solid var(--warning);
  padding: 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
  font-size: 0.95rem;
  color: #92400E;
}

.disclaimer strong {
  display: block;
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background-color: var(--dark-bg);
  color: white;
  padding: 3rem 2rem 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: #CBD5E1;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  border-top: 1px solid #334155;
  padding-top: 2rem;
  text-align: center;
  color: #94A3B8;
  font-size: 0.9rem;
}

/* Contact Info */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.contact-item {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.contact-item-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.contact-item h3 {
  margin-top: 0;
}

.contact-item a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.contact-item a:hover {
  text-decoration: underline;
}

/* Form */
.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  max-width: 600px;
  margin: 2rem auto;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(16, 183, 127, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group button {
  width: 100%;
  padding: 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s;
}

.form-group button:hover {
  background-color: var(--secondary-color);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .what-is-content {
    grid-template-columns: 1fr;
  }

  .pros-cons {
    grid-template-columns: 1fr;
  }

  nav a {
    margin-left: 1rem;
    font-size: 0.85rem;
  }

  .comparison-table {
    font-size: 0.9rem;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 1rem;
  }

  section {
    padding: 2rem 1rem;
  }

  section h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }

  nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  nav a {
    margin: 0.5rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .cta-button {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
}