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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
}

.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.app-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  display: inline-block;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(45deg, #fff, #f0f9ff);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tagline {
  font-size: 1.25rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 2;
}

.main-card {
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  margin-top: -2rem;
  overflow: hidden;
  margin-bottom: 3rem;
}

.app-preview {
  background: linear-gradient(135deg, #1e3a8a, #3b82f6);
  padding: 3rem;
  color: white;
  text-align: center;
  position: relative;
}

.preview-image {
  background: #000;
  border-radius: 15px;
  padding: 2rem;
  max-width: 500px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.camera-feed {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.7;
}

.code-preview {
  background: #1e1e1e;
  color: #d4d4d4;
  padding: 1rem;
  border-radius: 8px;
  text-align: left;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
}

.app-details {
  padding: 3rem;
}

.app-details h2 {
  font-size: 2rem;
  color: #1e293b;
  margin-bottom: 2rem;
  text-align: center;
}

.app-details code {
  background: #f0f0f0;
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  font-size: 0.9em;
  color: #1e293b;
}

.template-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.info-box {
  background: #f0f9ff;
  border: 2px solid #e0f2fe;
  border-radius: 12px;
  padding: 2rem;
}

.info-box h3 {
  color: #0c4a6e;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.info-box p {
  color: #0369a1;
  line-height: 1.6;
}

.how-to-use {
  background: #fefce8;
  border: 2px solid #fde047;
  border-radius: 12px;
  padding: 2rem;
  margin-top: 3rem;
}

.how-to-use h3 {
  color: #a16207;
  margin-bottom: 1.5rem;
  font-size: 1.3rem;
  text-align: center;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.step-number {
  background: #eab308;
  color: white;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  flex-shrink: 0;
}

.step h4 {
  color: #a16207;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.step p {
  color: #ca8a04;
}

.download-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 3rem;
}

.download-card {
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  padding: 3rem;
  text-align: center;
}

.download-card h2 {
  font-size: 2rem;
  color: #1e293b;
  margin-bottom: 1rem;
}

.download-card > p {
  color: #64748b;
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.dashboard-config {
  margin-bottom: 2rem;
  text-align: left;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.dashboard-config label {
  display: block;
  color: #374151;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.dashboard-config input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.dashboard-config input:focus {
  outline: none;
  border-color: #667eea;
}

.install-btn {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border: none;
  padding: 1.25rem 3rem;
  border-radius: 16px;
  font-size: 1.2rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.install-btn:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 15px 35px rgba(102, 126, 234, 0.4);
}

.install-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  font-size: 1.1rem;
}

.install-status {
  padding: 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  text-align: center;
  display: none;
  margin-top: 1rem;
}

.install-status.success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
  display: block;
}

.install-status.error {
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
  display: block;
}

.install-status.loading {
  background: #dbeafe;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  display: block;
}

.install-status.info {
  background: #e0f2fe;
  color: #0369a1;
  border: 1px solid #7dd3fc;
  display: block;
}

.manual-option {
  background: #f8fafc;
  border-radius: 12px;
  padding: 2rem;
  margin-top: 2rem;
}

.manual-option h3 {
  color: #1e293b;
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.manual-option > p {
  color: #64748b;
  margin-bottom: 1rem;
}

.manual-install {
  background: #1f2937;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.manual-install code {
  color: #10b981;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  font-size: 0.85rem;
  flex: 1;
  overflow-x: auto;
}

.copy-btn {
  background: #374151;
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.copy-btn:hover {
  background: #4b5563;
}

.footer {
  text-align: center;
  padding: 2rem;
  color: white;
  opacity: 0.8;
}

.footer a {
  color: white;
  text-decoration: none;
  font-weight: 600;
}

.footer a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero {
    padding: 2rem 1rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .container {
    padding: 0 1rem;
  }

  .app-details,
  .download-card {
    padding: 2rem;
  }

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

  .download-section {
    padding: 0 1rem 2rem;
  }
}