/* Bento Landing Page Styles */

:root {
  --primary: #111827;
  --primary-light: #f3f4f6;
  --primary-dark: #000000;
  --bg: #f9fafb;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --text-secondary: #6b7280;
  --radius: 12px;
  --radius-lg: 16px;
  --max-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
}

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

/* Typography */

h1, h2, h3 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-weight: 400;
  line-height: 1.2;
}

/* Layout */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Navigation */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-brand span {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 1.25rem;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: var(--text);
  color: #fff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: opacity 0.2s;
}

.nav-cta:hover {
  opacity: 0.85;
}

/* Hero Section */

.hero {
  padding: 140px 24px 80px;
  text-align: center;
}

.hero-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  color: var(--text);
}

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

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: border-color 0.2s, transform 0.2s;
}

.btn-secondary:hover {
  border-color: var(--text-secondary);
  transform: translateY(-1px);
}

/* Features Section */

.features {
  padding: 80px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  max-width: 480px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 20px rgba(17, 24, 39, 0.08);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* How It Works Section */

.how-it-works {
  padding: 80px 24px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.step {
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 600;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  max-width: 280px;
  margin: 0 auto;
}

/* CTA Section */

.cta-section {
  padding: 80px 24px;
  text-align: center;
}

.cta-box {
  background: var(--primary-light);
  border-radius: 20px;
  padding: 48px 32px;
  max-width: 640px;
  margin: 0 auto;
}

.cta-box h2 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.cta-box p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1.0625rem;
}

/* Footer */

.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Responsive: Tablet */

@media (min-width: 640px) {
  .hero h1 {
    font-size: 3rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* Responsive: Desktop */

@media (min-width: 1024px) {
  .hero {
    padding: 160px 24px 100px;
  }

  .hero h1 {
    font-size: 3.5rem;
  }

  .hero p {
    font-size: 1.25rem;
  }

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

  .features {
    padding: 100px 24px;
  }

  .how-it-works {
    padding: 100px 24px;
  }

  .cta-section {
    padding: 100px 24px;
  }
}

/* Fade-in animation */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}