/* BidSync AI Marketing Styles */
:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --secondary: #10b981;
  --dark: #1e293b;
  --light: #f8fafc;
  --gray: #64748b;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background-color: var(--light);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  background: var(--card-bg);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

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

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

/* Logo */
.logo {
  font-size: 1.5rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--dark);
}

.logo span {
  color: var(--primary);
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary, .btn-outline {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: transparent;
  color: var(--primary);
  text-decoration: none;
  border-radius: 0.5rem;
  border: 2px solid var(--primary);
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
}

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* Hero Section */
.hero {
  padding: 4rem 0 2rem;
  background: linear-gradient(135deg, var(--light) 0%, #ffffff 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 50%;
  transform: rotate(45deg);
}

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

.hero-title {
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-title .highlight {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray);
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.trust-badges {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray);
  font-size: 0.875rem;
}

/* Hero Illustration */
.hero-illustration {
  display: none;
}

@media (min-width: 768px) {
  .hero-illustration {
    display: block;
    position: relative;
    max-width: 400px;
  }
  
  .hero-content {
    max-width: 500px;
  }
}

/* Screen Mockup */
.screen-mockup {
  background: var(--card-bg);
  border-radius: 1rem;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.screen-header {
  height: 40px;
  background: #f1f5f9;
  border-bottom: 1px solid var(--border);
}

.screen-content {
  padding: 1.5rem;
}

.bid-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.status-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.status-ready {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
}

/* Problem/Solution Section */
.problem-solution {
  padding: 4rem 0;
  background: var(--light);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.problem-card, .solution-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.problem-card {
  border-left: 4px solid #ef4444;
}

.solution-card {
  border-left: 4px solid var(--primary);
}

.benefit-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-top: 0.5rem;
}

/* AI Architecture */
.ai-architecture {
  padding: 4rem 0;
}

.agent-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.central-orchestrator {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  padding: 2rem;
  border-radius: 1rem;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  max-width: 800px;
  width: 100%;
}

.agent-node {
  background: var(--card-bg);
  padding: 1.5rem 1rem;
  border-radius: 0.75rem;
  text-align: center;
  border: 1px solid var(--border);
  transition: transform 0.2s;
}

.agent-node:hover {
  transform: translateY(-3px);
}

.agent-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.agent-node h5 {
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
  color: var(--dark);
}

.agent-node p {
  font-size: 0.75rem;
  color: var(--gray);
}

/* Evidence Section */
.evidence-section {
  padding: 4rem 0;
  background: var(--light);
}

.evidence-example {
  display: flex;
  justify-content: center;
}

.evidence-card {
  width: 100%;
  max-width: 600px;
  background: var(--card-bg);
  border-radius: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}

.evidence-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.evidence-header h4 {
  margin-bottom: 0;
  flex: 1;
}

.confidence-badge {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.evidence-details {
  padding: 1.5rem;
}

.evidence-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.evidence-row:last-child {
  margin-bottom: 0;
}

.evidence-row .label {
  font-weight: 600;
  color: var(--gray);
  min-width: 120px;
}

.evidence-footer {
  padding: 1rem 1.5rem;
  background: #f8fafc;
  border-top: 1px solid var(--border);
  text-align: center;
}

.evidence-artifact {
  font-size: 0.75rem;
  color: var(--gray);
}

/* Features Section */
.features {
  padding: 4rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.2s;
}

.feature-card:hover {
  transform: translateY(-3px);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

/* Testimonials */
.testimonials {
  padding: 4rem 0;
  background: var(--light);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.testimonial-header img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
}

.rating {
  color: #fbbf24;
  font-size: 0.875rem;
}

/* CTA Section */
.cta {
  padding: 4rem 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.cta-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

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

.guarantee {
  display: flex;
  gap: 2rem;
  justify-content: center;
  flex-wrap: wrap;
}

.guarantee-badge {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
}

/* Footer */
.footer {
  background: var(--dark);
  color: #94a3b8;
  padding: 3rem 0 1.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  padding-bottom: 1rem;
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: white;
}

.footer-logo span {
  color: var(--primary);
}

.social-links a {
  display: inline-block;
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  text-align: center;
  line-height: 32px;
  font-size: 0.75rem;
  text-decoration: none;
  transition: background 0.2s;
}

.social-links a:hover {
  background: var(--primary-dark);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links h4 {
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid #334155;
  text-align: center;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
}