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

:root {
  --primary-color: #10b981;
  --primary-dark: #059669;
  --secondary-color: #232f3e;
  --text-color: #333;
  --text-light: #6b7280;
  --bg-light: #f5f5f5;
  --border-color: #e5e7eb;
  --white: #ffffff;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text-color);
  line-height: 1.6;
  background: var(--white);
}

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

/* Navigation */
.navbar {
  background: var(--secondary-color);
  color: var(--white);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 600;
}

.logo i {
  font-size: 24px;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--primary-color);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-secondary:hover {
  background: var(--white);
  color: var(--secondary-color);
}

.btn-outline {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.btn-outline:hover {
  background: var(--primary-color);
  color: var(--white);
}

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #1a2533 100%);
  color: var(--white);
  padding: 80px 0;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-top: 60px;
  flex-wrap: wrap;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.8);
}

/* Features Section */
.features {
  padding: 80px 0;
  background: var(--bg-light);
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 18px;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 60px;
}

.feature-card {
  background: var(--white);
  padding: 32px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-color);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.feature-icon i {
  font-size: 32px;
  color: var(--white);
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* How It Works */
.how-it-works {
  padding: 80px 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-top: 60px;
}

.step {
  text-align: center;
}

.step-number {
  width: 64px;
  height: 64px;
  background: var(--primary-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 700;
  margin: 0 auto 24px;
}

.step h3 {
  font-size: 24px;
  margin-bottom: 12px;
}

.step p {
  color: var(--text-light);
}

/* Pricing Section */
.pricing {
  padding: 80px 0;
  background: var(--bg-light);
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 60px;
}

.pricing-card {
  background: var(--white);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-lg);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-color);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.pricing-header h3 {
  font-size: 24px;
  margin-bottom: 16px;
}

.pricing-header .price {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.pricing-header .price span {
  font-size: 18px;
  color: var(--text-light);
}

.price-savings {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 24px;
}

.pricing-features {
  list-style: none;
  text-align: left;
  margin: 32px 0;
}

.pricing-features li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.pricing-features li i {
  color: var(--primary-color);
}

/* CTA Section */
.cta {
  padding: 80px 0;
  background: var(--secondary-color);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  font-size: 36px;
  margin-bottom: 16px;
}

.cta p {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
}

/* Footer */
.footer {
  background: var(--secondary-color);
  color: var(--white);
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  margin-bottom: 16px;
  font-size: 18px;
}

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

.footer-section ul li {
  margin-bottom: 8px;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

/* Payment Page Styles */
.payment-section {
  padding: 60px 0;
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.payment-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

/* Payment Loading State */
.payment-loading {
  padding: 60px 20px;
}

.loading-spinner {
  font-size: 48px;
  color: var(--primary-color);
  margin-bottom: 24px;
}

.payment-loading h2 {
  font-size: 24px;
  margin-bottom: 12px;
  color: var(--text-color);
}

.payment-loading p {
  color: var(--text-light);
  font-size: 16px;
}

/* Payment Success State */
.payment-success {
  padding: 60px 20px;
}

.success-icon {
  font-size: 64px;
  color: var(--primary-color);
  margin-bottom: 24px;
}

.payment-success h2 {
  font-size: 28px;
  margin-bottom: 12px;
  color: var(--text-color);
}

.payment-success p {
  color: var(--text-light);
  font-size: 16px;
  margin-bottom: 32px;
}

.success-details {
  background: var(--bg-light);
  border-radius: 12px;
  padding: 24px;
  margin-top: 32px;
  text-align: left;
}

.success-details p {
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-color);
}

.success-details ul {
  list-style: none;
  padding: 0;
}

.success-details ul li {
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
  color: var(--text-light);
}

.success-details ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* Payment Error State */
.payment-error {
  padding: 60px 20px;
}

.error-icon {
  font-size: 64px;
  color: #ef4444;
  margin-bottom: 24px;
}

.payment-error h2 {
  font-size: 28px;
  margin-bottom: 12px;
  color: var(--text-color);
}

.payment-error p {
  color: var(--text-light);
  font-size: 16px;
  margin-bottom: 32px;
}

.payment-header {
  text-align: center;
  margin-bottom: 40px;
}

.payment-header h1 {
  font-size: 36px;
  margin-bottom: 12px;
}

.payment-header p {
  color: var(--text-light);
  font-size: 18px;
}

.pricing-toggle-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.pricing-toggle {
  display: flex;
  background: var(--bg-light);
  border-radius: 8px;
  padding: 4px;
}

.toggle-btn {
  padding: 12px 24px;
  border: none;
  background: transparent;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-light);
}

.toggle-btn.active {
  background: var(--primary-color);
  color: var(--white);
}

.savings-badge {
  background: var(--primary-color);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}

.payment-pricing-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.payment-card {
  background: var(--white);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 32px;
  display: none;
}

.payment-card.active {
  display: block;
}

.payment-card.featured {
  border-color: var(--primary-color);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.card-header i {
  font-size: 24px;
  color: var(--primary-color);
}

.card-header h3 {
  font-size: 24px;
}

.card-price {
  margin-bottom: 24px;
}

.price-amount {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-color);
}

.price-period {
  font-size: 18px;
  color: var(--text-light);
  margin-left: 4px;
}

.card-features {
  list-style: none;
  margin-bottom: 24px;
}

.card-features li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-features li i {
  color: var(--primary-color);
}

.payment-form-container {
  background: var(--white);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 40px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="email"] {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-group small {
  display: block;
  margin-top: 4px;
  color: var(--text-light);
  font-size: 14px;
}

.payment-methods {
  display: flex;
  gap: 16px;
}

.payment-method {
  flex: 1;
  padding: 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.payment-method.active {
  border-color: var(--primary-color);
  background: rgba(16, 185, 129, 0.1);
}

.payment-method i {
  font-size: 32px;
  color: var(--primary-color);
  margin-bottom: 8px;
}

.payment-method span {
  display: block;
  font-weight: 600;
}

.stripe-element {
  margin: 24px 0;
  padding: 20px;
  background: var(--bg-light);
  border-radius: 8px;
}

.checkbox-group label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-weight: normal;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  margin-top: 4px;
  cursor: pointer;
}

.checkbox-group a {
  color: var(--primary-color);
  text-decoration: none;
}

.checkbox-group a:hover {
  text-decoration: underline;
}

.payment-status {
  margin-top: 24px;
  padding: 16px;
  border-radius: 8px;
  text-align: center;
}

.payment-status.success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #10b981;
}

.payment-status.error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #ef4444;
}

.security-badge {
  text-align: center;
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
}

.security-badge i {
  color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-stats {
    gap: 40px;
  }

  .nav-links {
    gap: 16px;
  }

  .payment-pricing-cards {
    grid-template-columns: 1fr;
  }

  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
}