/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background-color: #ffffff;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

a {
  color: #667eea;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #5a67d8;
}

/* Header */
.header {
  background: white;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: #667eea;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav a {
  color: #6b7280;
  font-weight: 500;
  transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
  color: #667eea;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-size: 14px;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
  color: white;
}

.btn-secondary {
  background: white;
  color: #667eea;
  border: 2px solid #667eea;
}

.btn-secondary:hover {
  background: #f9fafb;
  color: #667eea;
}

.btn-large {
  padding: 14px 32px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
  display: block;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 100px 0;
  text-align: center;
}

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

.hero-title {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 20px;
  margin-bottom: 40px;
  opacity: 0.9;
}

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

.hero-note {
  margin-top: 20px;
  font-size: 14px;
  opacity: 0.8;
}

/* Features Section */
.features {
  padding: 80px 0;
  background: #f9fafb;
}

.section-title {
  font-size: 36px;
  text-align: center;
  margin-bottom: 60px;
}

.section-subtitle {
  font-size: 18px;
  text-align: center;
  color: #6b7280;
  margin-top: -40px;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-card {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.feature-card p {
  color: #6b7280;
  line-height: 1.6;
}

/* Pricing Section */
.pricing {
  padding: 80px 0;
}

.pricing-hero {
  padding: 60px 0 20px;
  background: #f9fafb;
}

.pricing-section {
  padding: 60px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.pricing-card {
  background: white;
  border: 2px solid #e5e7eb;
  border-radius: 16px;
  padding: 40px;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.pricing-card-featured {
  border-color: #667eea;
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #667eea;
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.pricing-badge-discount {
  background: #10b981;
}

.pricing-header {
  text-align: center;
  margin-bottom: 30px;
}

.pricing-header h3 {
  font-size: 24px;
  margin-bottom: 20px;
}

.price {
  margin-bottom: 10px;
}

.price-amount {
  font-size: 48px;
  font-weight: 700;
  color: #667eea;
}

.price-period {
  font-size: 16px;
  color: #6b7280;
}

.price-comparison {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: 10px;
}

.price-monthly {
  font-size: 14px;
  color: #6b7280;
}

.price-save {
  font-size: 14px;
  color: #10b981;
  font-weight: 600;
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
}

.pricing-features li {
  padding: 12px 0;
  color: #4b5563;
  border-bottom: 1px solid #f3f4f6;
}

.pricing-features li:last-child {
  border-bottom: none;
}

.pricing-note {
  text-align: center;
  color: #6b7280;
  font-size: 14px;
  margin-top: 20px;
}

/* Features Comparison */
.features-comparison {
  padding: 60px 0;
  background: #f9fafb;
}

.comparison-table {
  overflow-x: auto;
  margin-top: 40px;
}

.comparison-table table {
  width: 100%;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  text-align: center;
  border-bottom: 1px solid #e5e7eb;
}

.comparison-table th {
  background: #667eea;
  color: white;
  font-weight: 600;
}

.comparison-table th:first-child {
  text-align: left;
}

.comparison-table td:first-child {
  text-align: left;
  font-weight: 500;
}

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

/* FAQ */
.faq {
  padding: 60px 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.faq-item {
  background: #f9fafb;
  padding: 30px;
  border-radius: 12px;
}

.faq-item h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: #1f2937;
}

.faq-item p {
  color: #6b7280;
  line-height: 1.6;
}

/* CTA Section */
.cta {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.cta h2 {
  font-size: 36px;
  margin-bottom: 20px;
}

.cta p {
  font-size: 18px;
  margin-bottom: 40px;
  opacity: 0.9;
}

/* Footer */
.footer {
  background: #1f2937;
  color: #9ca3af;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  color: white;
  margin-bottom: 20px;
  font-size: 16px;
}

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

.footer-section li {
  margin-bottom: 10px;
}

.footer-section a {
  color: #9ca3af;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 20px;
  text-align: center;
}

/* Auth Pages */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  padding: 20px;
}

.auth-container {
  width: 100%;
  max-width: 450px;
}

.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

.auth-header .logo {
  font-size: 32px;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.auth-card {
  background: white;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.auth-title {
  font-size: 28px;
  text-align: center;
  margin-bottom: 10px;
}

.auth-subtitle {
  text-align: center;
  color: #6b7280;
  margin-bottom: 30px;
}

.auth-form {
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: #374151;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: #667eea;
}

.form-group-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: #6b7280;
}

.checkbox-label input {
  cursor: pointer;
}

.link-secondary {
  font-size: 14px;
  color: #667eea;
}

.auth-divider {
  text-align: center;
  margin: 30px 0;
  position: relative;
}

.auth-divider::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: #e5e7eb;
}

.auth-divider span {
  position: relative;
  background: white;
  padding: 0 10px;
  color: #6b7280;
  font-size: 14px;
}

.auth-footer {
  text-align: center;
  color: #6b7280;
}

.auth-terms {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e5e7eb;
  text-align: center;
  font-size: 12px;
  color: #9ca3af;
}

.auth-terms a {
  color: #667eea;
}

/* Dashboard */
.dashboard {
  padding: 40px 0 80px;
  min-height: 100vh;
  background: #f9fafb;
}

.page-title {
  font-size: 32px;
  margin-bottom: 30px;
}

.dashboard-card {
  background: white;
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 30px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.dashboard-card h2 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 2px solid #f3f4f6;
}

.info-grid {
  display: grid;
  gap: 20px;
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid #f3f4f6;
}

.info-item:last-child {
  border-bottom: none;
}

.info-label {
  color: #6b7280;
  font-weight: 500;
}

.info-value {
  color: #1f2937;
  font-weight: 600;
}

.dashboard-actions {
  display: flex;
  gap: 15px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.app-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.app-link {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  background: #f9fafb;
  border-radius: 12px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
}

.app-link:hover:not(.disabled) {
  border-color: #667eea;
  background: white;
  transform: translateY(-2px);
  color: inherit;
}

.app-icon {
  font-size: 32px;
}

.app-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.app-description {
  font-size: 14px;
  color: #6b7280;
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    gap: 1rem;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section-title {
    font-size: 28px;
  }

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

  .auth-card {
    padding: 30px 20px;
  }

  .dashboard-actions {
    flex-direction: column;
  }

  .app-links {
    grid-template-columns: 1fr;
  }
}