/* Nabu AI Plus Landing Page Styles */
/* Using shadcn design system tokens */

:root {
  --background: 0 0% 100%;
  --foreground: 0 0% 3.9%;
  --card: 0 0% 100%;
  --card-foreground: 0 0% 3.9%;
  --popover: 0 0% 100%;
  --popover-foreground: 0 0% 3.9%;
  --primary: 0 0% 9%;
  --primary-foreground: 0 0% 98%;
  --secondary: 0 0% 96.1%;
  --secondary-foreground: 0 0% 9%;
  --muted: 0 0% 96.1%;
  --muted-foreground: 0 0% 45.1%;
  --accent: 0 0% 96.1%;
  --accent-foreground: 0 0% 9%;
  --destructive: 0 84.2% 60.2%;
  --destructive-foreground: 0 0% 98%;
  --border: 0 0% 89.8%;
  --input: 0 0% 89.8%;
  --ring: 0 0% 3.9%;
  --radius: 0.5rem;
}

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

body {
  font-family: 'Geist', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  border-bottom: 1px solid hsl(var(--border));
  background-color: hsl(var(--background) / 0.8);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.logo {
  color: hsl(var(--foreground));
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.8;
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, hsl(var(--background)) 0%, hsl(var(--secondary) / 0.3) 50%, hsl(var(--background)) 100%);
  padding: 6rem 0;
  text-align: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, hsl(var(--primary) / 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, hsl(var(--primary) / 0.05) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, hsl(var(--primary) / 0.03) 0%, transparent 50%);
  background-size: 100% 100%;
  opacity: 1;
  z-index: 0;
}

.hero-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 10px,
      hsl(var(--primary) / 0.02) 10px,
      hsl(var(--primary) / 0.02) 20px
    );
  opacity: 0.5;
}

.hero-background::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 10px,
      hsl(var(--primary) / 0.015) 10px,
      hsl(var(--primary) / 0.015) 20px
    );
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero-illustration {
  width: 100%;
  max-width: 300px;
  height: 150px;
  margin: 0 auto 1.5rem;
  opacity: 0.8;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

.hero-illustration svg {
  width: 100%;
  height: 100%;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: hsl(var(--foreground));
  margin-bottom: 1rem;
  background: linear-gradient(to right, hsl(var(--foreground)), hsl(var(--muted-foreground)));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

.hero-subtitle {
  font-size: 1.5rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 1.875rem;
  }
}

.hero-description {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
  border-radius: calc(var(--radius) - 2px);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
  text-decoration: none;
  border: none;
  cursor: pointer;
  outline: none;
}

.btn:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
}

.btn:disabled {
  pointer-events: none;
  opacity: 0.5;
}

.btn-primary {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
}

.btn-primary:hover {
  background-color: hsl(var(--primary) / 0.9);
}

.btn-outline {
  border: 1px solid hsl(var(--input));
  background-color: hsl(var(--background));
  color: hsl(var(--foreground));
}

.btn-outline:hover {
  background-color: hsl(var(--accent));
  color: hsl(var(--accent-foreground));
}

.btn-lg {
  height: 2.75rem;
  padding: 0 2rem;
  font-size: 1rem;
}

/* Features Section */
.features {
  padding: 5rem 0;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

/* Card */
.card {
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.card-header {
  margin-bottom: 1rem;
}

.icon-wrapper {
  width: 3rem;
  height: 3rem;
  border-radius: calc(var(--radius) - 2px);
  background-color: hsl(var(--primary) / 0.1);
  color: hsl(var(--primary));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-description {
  color: hsl(var(--muted-foreground));
}

/* CTA Section */
.cta {
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  padding: 5rem 0;
}

.cta-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .cta-title {
    font-size: 2.25rem;
  }
}

.cta-description {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.cta .btn-primary {
  background-color: hsl(var(--primary-foreground));
  color: hsl(var(--primary));
}

.cta .btn-primary:hover {
  background-color: hsl(var(--primary-foreground) / 0.9);
}

/* Download Section */
.download-section {
  padding: 3rem 0;
  min-height: calc(100vh - 200px);
}

.download-content {
  max-width: 900px;
  margin: 0 auto;
}

.download-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .download-title {
    font-size: 3rem;
  }
}

.download-subtitle {
  font-size: 1.25rem;
  color: hsl(var(--muted-foreground));
  text-align: center;
  margin-bottom: 3rem;
}

.download-card {
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  padding: 3rem;
  text-align: center;
  margin-bottom: 3rem;
}

.download-icon {
  color: hsl(var(--primary));
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
}

/* Instructions */
.instructions-card {
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.instructions-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.instruction-item {
  display: flex;
  gap: 1rem;
}

.instruction-number {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.instruction-content {
  flex: 1;
}

.instruction-title {
  font-weight: 600;
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.instruction-text {
  color: hsl(var(--muted-foreground));
}

.instruction-sublist {
  margin-top: 0.5rem;
  list-style: disc;
  padding-left: 1.5rem;
}

.instruction-sublist li {
  color: hsl(var(--muted-foreground));
  margin-top: 0.25rem;
}

code {
  background-color: hsl(var(--muted));
  padding: 0.25rem 0.5rem;
  border-radius: calc(var(--radius) - 4px);
  font-size: 0.875rem;
  font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
}

/* Visual Guide */
.visual-guide-card {
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.visual-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.visual-step {
  text-align: center;
  flex: 1;
  min-width: 150px;
}

.visual-step-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background-color: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 0.5rem;
}

.visual-arrow {
  font-size: 1.5rem;
  color: hsl(var(--muted-foreground));
}

/* Troubleshooting */
.troubleshooting-card {
  border-radius: calc(var(--radius) - 2px);
  border: 1px solid hsl(var(--border));
  background-color: hsl(var(--card));
  color: hsl(var(--card-foreground));
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.troubleshooting-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.troubleshooting-item {
  border-left: 4px solid hsl(var(--primary));
  padding-left: 1rem;
}

.troubleshooting-question {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.troubleshooting-answer {
  color: hsl(var(--muted-foreground));
}

/* Back Link */
.back-link {
  text-align: center;
  margin-bottom: 2rem;
}

/* Footer */
.footer {
  border-top: 1px solid hsl(var(--border));
  background-color: hsl(var(--muted) / 0.5);
  padding: 2rem 0;
  margin-top: 3rem;
}

.footer-text {
  text-align: center;
  color: hsl(var(--muted-foreground));
}

/* Responsive */
@media (max-width: 768px) {
  .hero {
    padding: 4rem 0;
  }

  .hero-illustration {
    max-width: 250px;
    height: 120px;
    margin-bottom: 1.5rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

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

  .features-grid {
    grid-template-columns: 1fr;
  }

  .visual-steps {
    flex-direction: column;
  }

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