* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f1115;
  color: #f2f2f2;
}
header {
  padding: 14px 16px;
  border-bottom: 1px solid #2a2e36;
}
h1 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
}
p {
  margin: 6px 0 0;
  font-size: 12px;
  color: #9aa3b2;
}
a.btn {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 14px;
  background: #c4a35a;
  color: #111;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
}
.status {
  margin: 0;
  padding: 8px 16px;
  font-size: 12px;
  color: #9aa3b2;
  min-height: 1.2em;
}
#viewer {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background: #e8e8e8;
  padding: 0 0 24px;
}
#viewer canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
  margin: 0 auto 6px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0,0,0,.12);
}
.fallback {
  margin: 0;
  padding: 20px 16px;
  color: #111;
  background: #fff;
  font-size: 14px;
  line-height: 1.45;
}
.fallback a { color: #0b57d0; }