:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --background: #ffffff;
  --foreground: #000000;
  --muted: #6b7280;
  --border: #e5e7eb;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.navbar {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  margin-bottom: 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  text-decoration: none !important;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s;
}

.back-button:hover {
  color: var(--foreground);
}

.content {
  padding: 2rem 0 4rem;
}

.page-header {
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-header p {
  color: var(--muted);
}

.page-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  text-decoration: none !important;
  color: var(--foreground);
}

.page-logo img {
  width: 32px;
  height: 32px;
}

.page-logo span {
  font-size: 1.5rem;
  font-weight: 600;
  margin-left: 0.5rem;
  text-decoration: none !important;
  color: #000 !important;
}

.docs-content {
  max-width: 720px;
  margin: 0 auto;
}

.workflow-section {
  margin-bottom: 4rem;
}

.workflow-steps {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.workflow-step {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.workflow-step:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.step-number {
  width: 2rem;
  height: 2rem;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.step-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.code-block {
  background: #f8fafc;
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
  font-family: monospace;
  font-size: 0.875rem;
  overflow-x: auto;
  border: 1px solid var(--border);
}

.about-content {
  max-width: 720px;
  margin: 0 auto;
}

.intro-section {
  margin-bottom: 4rem;
  text-align: center;
}

.lead {
  font-size: 1.25rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

.about-section {
  margin-bottom: 3rem;
}

.about-section h2 {
  color: var(--primary);
  margin-bottom: 1rem;
}

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

.feature-card {
  padding: 1.5rem;
  background: white;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.feature-icon {
  width: 2rem;
  height: 2rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--muted);
  font-size: 0.875rem;
}

.cta-section {
  text-align: center;
  margin-top: 4rem;
  padding: 3rem;
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  border-radius: 1rem;
  color: white;
}

.cta-section h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta-section p {
  opacity: 0.9;
  margin-bottom: 2rem;
}

.cta-button {
  display: inline-block;
  background: white;
  color: var(--primary);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  color: var(--primary);
  text-decoration: none;
}

.policy-content,
.terms-content {
  max-width: 720px;
  margin: 0 auto;
}

.policy-section,
.terms-section {
  margin-bottom: 3rem;
}

.section-icon {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--primary);
  margin-right: 0.5rem;
  vertical-align: middle;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  color: var(--primary);
}

ul {
  list-style: none;
  margin-left: 2.5rem;
}

li {
  position: relative;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

li::before {
  content: '';
  position: absolute;
  left: -1.5rem;
  top: 0.5rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--primary);
  border-radius: 50%;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.form-container {
  max-width: 480px;
  margin: 0 auto;
  padding: 2rem;
}

.form-card {
  background: white;
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--foreground);
}

.form-control {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 0.875rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.mb-3 {
  margin-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
  width: 100%;
}

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

.info-text {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--muted);
  text-align: center;
}

.info-text a {
  color: var(--primary);
  text-decoration: none;
}

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

.result-box {
  margin-top: 1.5rem;
  padding: 1rem;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-family: monospace;
}

@media (max-width: 640px) {
  .form-container {
    padding: 1rem;
  }
  
  .form-card {
    padding: 1.5rem;
  }
}

p.message {
  display: block;
  background: linear-gradient(to right, #f8fafc, #f1f5f9);
  border-left: 3px solid var(--primary);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
  font-size: 0.925rem;
  line-height: 1.5;
  color: var(--foreground);
  animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .page-header h1 {
    font-size: 2rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .workflow-step {
    flex-direction: column;
  }
  
  .step-number {
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.875rem;
  }
}