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

:root {
  --navy: #1a365d;
  --navy-dark: #0f2440;
  --navy-light: #2c5282;
  --accent: #3182ce;
  --green: #38a169;
  --gray-50: #f7fafc;
  --gray-100: #edf2f7;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e0;
  --gray-400: #a0aec0;
  --gray-500: #718096;
  --gray-600: #4a5568;
  --gray-700: #2d3748;
  --gray-800: #1a202c;
  --white: #ffffff;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--white);
  color: var(--gray-800);
  line-height: 1.6;
}

.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
}

.nav-cta {
  background: var(--navy);
  color: var(--white);
  padding: 10px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s;
}

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

.hero {
  padding: 120px 24px 80px;
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-content h1 .highlight {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
}

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

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

.btn-large {
  padding: 18px 48px;
  font-size: 1.2rem;
}

.hero-buttons {
  margin-bottom: 0;
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.mockups-container {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.phone-mockup {
  background: var(--navy);
  border-radius: 32px;
  padding: 10px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.dashboard-mockup {
  transform: translateY(20px);
}

.appraisal-mockup {
  transform: translateY(-10px);
}

.phone-screen {
  background: var(--white);
  border-radius: 24px;
  width: 220px;
  padding: 16px;
  min-height: 380px;
}

.dashboard-summary {
  text-align: center;
  padding: 15px 0;
}

.summary-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--navy);
}

.summary-label {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.summary-change {
  font-size: 0.85rem;
  font-weight: 600;
}

.summary-change.positive {
  color: var(--green);
}

.mini-chart {
  margin: 10px 0;
}

.chart-svg {
  width: 100%;
  height: 50px;
}

.dashboard-items {
  border-top: 1px solid var(--gray-200);
  padding-top: 12px;
}

.dash-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--gray-100);
}

.dash-item span:first-child {
  color: var(--gray-600);
}

.dash-item span:last-child {
  font-weight: 600;
  color: var(--navy);
}

.mockup-header {
  text-align: center;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--gray-200);
  margin-bottom: 15px;
}

.mockup-title {
  font-weight: 600;
  color: var(--navy);
  font-size: 1rem;
}

.mockup-image {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, var(--gray-200) 0%, var(--gray-300) 100%);
  border-radius: 12px;
  margin-bottom: 15px;
}

.mockup-details {
  text-align: center;
}

.mockup-name {
  font-weight: 600;
  color: var(--gray-800);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.mockup-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

.mockup-range {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 12px;
}

.mockup-trend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.trend-up {
  color: var(--green);
  font-weight: 600;
  font-size: 0.9rem;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  text-align: center;
  margin-bottom: 48px;
}

.how-it-works {
  background: var(--gray-50);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  text-align: center;
}

.step-icon {
  width: 80px;
  height: 80px;
  background: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--white);
}

.step h3 {
  font-size: 1.25rem;
  color: var(--navy);
  margin-bottom: 10px;
}

.step p {
  color: var(--gray-600);
  font-size: 1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--gray-50);
  padding: 30px;
  border-radius: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--navy);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.2rem;
  color: var(--navy);
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

.categories {
  background: var(--gray-50);
}

.category-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.tag {
  background: var(--white);
  border: 2px solid var(--gray-200);
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.95rem;
  color: var(--gray-700);
  font-weight: 500;
  transition: all 0.2s;
}

.tag:hover {
  border-color: var(--navy);
  color: var(--navy);
}

.cta-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  text-align: center;
}

.cta-section h2 {
  color: var(--white);
}

.cta-section .section-subtitle {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 32px;
}

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

.cta-section .btn-primary:hover {
  background: var(--gray-100);
}

.landing-footer {
  background: var(--gray-800);
  padding: 40px 24px;
}

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

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

.footer-brand p {
  color: var(--gray-400);
  font-size: 0.9rem;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: right;
}

.footer-links a {
  color: var(--gray-300);
  text-decoration: none;
  font-size: 0.95rem;
}

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

@media (max-width: 900px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .mockups-container {
    gap: 12px;
    justify-content: center;
  }
  
  .phone-mockup {
    padding: 8px;
    border-radius: 24px;
  }
  
  .phone-screen {
    width: 160px;
    min-height: 280px;
    padding: 12px;
    border-radius: 18px;
  }
  
  .dashboard-mockup,
  .appraisal-mockup {
    transform: none;
  }
  
  .summary-value {
    font-size: 1.4rem;
  }
  
  .mockup-value {
    font-size: 1.5rem;
  }
  
  .mockup-image {
    height: 100px;
  }
  
  .dash-item {
    font-size: 0.75rem;
    padding: 5px 0;
  }
  
  .steps {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }
  
  .footer-links {
    text-align: center;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 100px 20px 60px;
  }
  
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .section-container {
    padding: 60px 20px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 1rem;
  }
  
  .btn-large {
    padding: 14px 32px;
  }
}