/* Landing Page Styles */

.landing-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navigation */
.landing-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
}

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

.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 80px 60px;
  gap: 60px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text);
}

.accent-text {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

.hero-note {
  font-size: 13px;
  color: var(--text-dim);
}

.hero-visual {
  flex: 1;
  max-width: 600px;
}

.hero-mindmap {
  width: 100%;
  height: auto;
}

/* Features Section */
.features {
  padding: 80px 60px;
  background: var(--surface);
  text-align: center;
}

.features h2 {
  font-size: 36px;
  margin-bottom: 48px;
  color: var(--text);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  text-align: left;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
  padding: 80px 60px;
  text-align: center;
}

.how-it-works h2 {
  font-size: 36px;
  margin-bottom: 48px;
  color: var(--text);
}

.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 260px;
  text-align: center;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  margin: 0 auto 16px;
}

.step h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--text);
}

.step p {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}

.step-arrow {
  color: var(--text-dim);
}

/* Pricing Section */
.pricing {
  padding: 80px 60px;
  background: var(--surface);
  text-align: center;
}

.pricing h2 {
  font-size: 36px;
  margin-bottom: 12px;
  color: var(--text);
}

.pricing-subtitle {
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 48px;
}

.pricing-cards {
  display: flex;
  justify-content: center;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.pricing-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  width: 340px;
  text-align: left;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.15);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.pricing-header {
  margin-bottom: 24px;
}

.pricing-header h3 {
  font-size: 20px;
  margin-bottom: 8px;
  color: var(--text);
}

.price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-amount {
  font-size: 40px;
  font-weight: 700;
  color: var(--text);
}

.price-period {
  font-size: 14px;
  color: var(--text-dim);
}

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

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-dim);
}

.pricing-features li svg {
  color: var(--green);
  flex-shrink: 0;
}

.pricing-btn {
  width: 100%;
  text-align: center;
  display: block;
  text-decoration: none;
}

.pricing-note {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 32px;
}

/* Footer */
.landing-footer {
  margin-top: auto;
  padding: 32px 60px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand {
  font-size: 14px;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    padding: 40px 24px;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-cta {
    flex-direction: column;
    gap: 12px;
  }

  .features,
  .how-it-works,
  .pricing {
    padding: 48px 24px;
  }

  .steps {
    flex-direction: column;
  }

  .step-arrow {
    transform: rotate(90deg);
  }

  .landing-nav {
    padding: 12px 20px;
  }

  .nav-links {
    gap: 12px;
  }

  .nav-links a:not(.btn) {
    display: none;
  }

  .footer-content {
    flex-direction: column;
    gap: 16px;
  }
}