:root {
  --doc-accent: #4f46e5;
  --doc-text: #1e293b;
  --doc-muted: #64748b;
  --doc-border: #e2e8f0;
  --doc-bg: #f8fafc;
  --doc-paper: #ffffff;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--doc-text);
  background: var(--doc-bg);
}

.doc-preview-banner {
  background: #fef3c7;
  color: #92400e;
  text-align: center;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-bottom: 1px solid #fde68a;
}

.doc-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.doc-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--doc-border);
}

.doc-logo {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 18px;
  margin: 0 auto 1rem;
  display: block;
  background: var(--doc-paper);
  border: 1px solid var(--doc-border);
  padding: 0.35rem;
}

.doc-partner {
  margin: 0 0 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--doc-muted);
  letter-spacing: 0.02em;
}

.doc-title {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--doc-text);
}

.doc-title-accent {
  display: block;
  width: 48px;
  height: 4px;
  margin: 1rem auto 0;
  border-radius: 999px;
  background: var(--doc-accent);
}

.doc-paper {
  background: var(--doc-paper);
  border: 1px solid var(--doc-border);
  border-radius: 20px;
  padding: clamp(1.25rem, 4vw, 2rem);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 20px 48px -32px rgba(15, 23, 42, 0.18);
}

.doc-content {
  font-size: 0.975rem;
  line-height: 1.75;
  color: #334155;
}

.doc-content p {
  margin: 0 0 1rem;
}

.doc-content p:last-child {
  margin-bottom: 0;
}

.doc-content h1,
.doc-content h2,
.doc-content h3 {
  margin: 1.75rem 0 0.75rem;
  line-height: 1.3;
  color: var(--doc-text);
}

.doc-content ul,
.doc-content ol {
  margin: 0 0 1rem;
  padding-left: 1.35rem;
}

.doc-empty {
  color: var(--doc-muted);
  font-style: italic;
  text-align: center;
  padding: 2rem 1rem;
}

.doc-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--doc-muted);
}

@media (max-width: 480px) {
  .doc-page {
    padding-top: 1.5rem;
  }

  .doc-paper {
    border-radius: 16px;
  }
}