:root {
  --bg: #fff;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #2563eb;
  --card: #fff;
  --border: #e5e5e5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1.5rem;
  background: var(--bg);
  color: var(--fg);
  font-family: Calibri, Arial, sans-serif;
  line-height: 1.6;
}

h1, h2 {
  font-weight: 600;
  letter-spacing: -0.02em;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.back-link {
  align-self: flex-start;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.pdf-card {
  width: 100%;
  max-width: 700px;
  aspect-ratio: 8.5 / 11;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.pdf-card iframe {
  width: 100%;
  height: 100%;
  border: 0;
}