body {
  margin: 0;
  background: #f4fbff;
  color: #102033;
  font-family: Verdana, Tahoma, sans-serif;
  font-size: 18px;
}
a { color: #1565c0; }
.ybar {
  background: linear-gradient(90deg, #e7f6ff, #ffffff 40%, #e7f6ff);
  color: #123a66;
  padding: 14px 18px;
  border-bottom: 3px solid transparent;
  border-image: linear-gradient(90deg, #7ec8ff, #2563eb, #c084fc, #ffe14a) 1;
}
.ybar a { color: #123a66; font-weight: bold; text-decoration: none; margin-inline-end: 16px; font-size: 16px; }
.page { width: min(820px, calc(100% - 24px)); margin: 20px auto 40px; }
h1 { font-size: 32px; margin: 0 0 12px; }
.tick {
  display: inline-block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #0095f6;
  color: #fff;
  text-align: center;
  line-height: 22px;
  font-size: 14px;
}
.gems { display: inline-flex; gap: 6px; margin-inline-start: 8px; vertical-align: middle; }
.gem {
  width: 14px;
  height: 14px;
  transform: rotate(45deg);
  display: inline-block;
}
.gem-white {
  background: linear-gradient(135deg, #ffffff, #d9e2ec 45%, #ffffff 70%);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.9);
  animation: gem-blink 1.8s ease-in-out infinite;
}
.gem-blue {
  width: 10px;
  height: 10px;
  background: linear-gradient(135deg, #b3e5fc, #1565c0);
  box-shadow: 0 0 6px rgba(21, 101, 192, 0.65);
}
@keyframes gem-blink {
  0%, 100% { opacity: 1; filter: brightness(1.15); }
  50% { opacity: 0.55; filter: brightness(0.9); }
}
.mod {
  margin: 0 0 14px;
  background:
    linear-gradient(#ffffff, #ffffff) padding-box,
    linear-gradient(120deg, #7ec8ff, #2563eb, #c084fc, #ffe14a, #7ec8ff) border-box;
  border: 2px solid transparent;
  background-size: auto, 220% 220%;
  animation: metal-shift 12s linear infinite;
}
.mod h2 {
  margin: 0;
  padding: 8px 12px;
  background: #e7f4ff;
  color: #123a66;
  font-size: 18px;
}
.mod .body { padding: 12px 14px; font-size: 18px; line-height: 1.55; }
.err { color: #8a1f11; font-size: 16px; }
input, button { font: inherit; font-size: 18px; }
button {
  background: #1565c0;
  color: #fff;
  border: 0;
  padding: 8px 14px;
  cursor: pointer;
  border-radius: 8px;
}
@keyframes metal-shift {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}