/* Landing Page Styles */
:root {
  --primary: #1e40af;
  --primary-dark: #1e3a8a;
  --accent: #2563eb;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f172a;
  --border: #e5e7eb;
  --success: #10b981;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s;
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;
  color: var(--primary);
}

.nav-logo-img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}

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

.nav-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-login {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: color 0.2s;
}

.nav-login:hover {
  color: var(--accent);
}

.nav-cta {
  background: var(--accent);
  color: white;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--primary-dark);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text);
  cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: white;
  padding: 20px;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  z-index: 999;
  flex-direction: column;
  gap: 16px;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  font-size: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.mobile-login {
  color: var(--text) !important;
  text-align: center;
  font-weight: 500;
}

.mobile-cta {
  background: var(--accent);
  color: white !important;
  text-align: center;
  padding: 14px !important;
  border-radius: 8px;
  border: none !important;
}

/* Hero */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  background: linear-gradient(180deg, #f0f7ff 0%, var(--bg) 100%);
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--text);
}

.hero-sub {
  font-size: 20px;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto 32px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 17px;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-large {
  padding: 20px 48px;
  font-size: 18px;
}

.hero-trust {
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-light);
}

/* Section Titles */
.section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
  color: var(--text);
}

/* Features */
.features {
  padding: 100px 0;
  background: var(--bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 40px 30px;
  background: var(--bg-alt);
  border-radius: 16px;
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, #dbeafe, #c7d2fe);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 28px;
  color: var(--accent);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.feature-card p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.6;
}

/* AI Section */
.ai-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 100%);
  color: white;
  text-align: center;
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.ai-section h2 {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 16px;
}

.ai-desc {
  font-size: 18px;
  opacity: 0.9;
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.ai-steps {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 40px;
}

.ai-step {
  text-align: center;
  max-width: 200px;
}

.step-number {
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  margin: 0 auto 16px;
}

.ai-step p {
  font-size: 15px;
  opacity: 0.9;
}

.ai-addon-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
}

/* How It Works */
.how-it-works {
  padding: 100px 0;
  background: var(--bg-alt);
}

.steps-vertical {
  max-width: 600px;
  margin: 0 auto 32px;
}

.step-item {
  display: flex;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

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

.step-icon {
  width: 56px;
  height: 56px;
  background: var(--accent);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.step-content p {
  font-size: 15px;
  color: var(--text-light);
}

.steps-note {
  text-align: center;
  font-size: 15px;
  color: var(--text-light);
}

/* Pricing */
.pricing {
  padding: 100px 0;
  background: var(--bg);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.price-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 28px;
  position: relative;
}

.price-card.price-featured {
  background: white;
  border-color: var(--accent);
  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
  transform: scale(1.02);
}

.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.price-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

.price-label {
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}

.price {
  font-size: 42px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 4px;
}

.price span {
  font-size: 16px;
  font-weight: 400;
  color: var(--text-light);
}

.price-sub {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
}

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

.price-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--text);
}

.price-features i {
  color: var(--success);
  font-size: 14px;
}

.price-note {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 20px;
  padding: 12px;
  background: rgba(0, 0, 0, 0.03);
  border-radius: 8px;
}

.price-card .btn {
  width: 100%;
}

/* FAQ */
.faq {
  padding: 100px 0;
  background: var(--bg-alt);
}

.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.faq-question i {
  transition: transform 0.3s;
  color: var(--text-light);
}

.faq-item.open .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 20px;
}

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

.faq-answer p {
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
}

/* Final CTA */
.final-cta {
  padding: 100px 0;
  background: var(--bg-dark);
  color: white;
  text-align: center;
}

.final-cta h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.final-cta p {
  font-size: 18px;
  opacity: 0.8;
  margin-bottom: 32px;
}

/* Footer */
.footer {
  background: var(--bg-dark);
  color: white;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-content p {
  font-size: 14px;
  opacity: 0.6;
}

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

.footer-links a {
  color: white;
  opacity: 0.6;
  text-decoration: none;
  font-size: 14px;
  transition: opacity 0.2s;
}

.footer-links a:hover {
  opacity: 1;
}

/* Mobile Responsive */
@media (max-width: 900px) {
  .features-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .price-card.price-featured {
    transform: none;
  }
  
  .ai-steps {
    flex-direction: column;
    gap: 24px;
  }
  
  .ai-step {
    max-width: none;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero {
    padding: 120px 0 80px;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .hero-sub {
    font-size: 17px;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 12px;
  }
  
  .btn {
    width: 100%;
    padding: 16px 24px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .feature-card {
    padding: 30px 24px;
  }
  
  .ai-section h2 {
    font-size: 28px;
  }
  
  .ai-desc {
    font-size: 16px;
  }
  
  .step-item {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  
  .step-icon {
    margin: 0 auto;
  }
  
  .pricing-grid {
    gap: 16px;
  }
  
  .price-card {
    padding: 28px 20px;
  }
  
  .price {
    font-size: 36px;
  }
  
  .final-cta h2 {
    font-size: 28px;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}