:root {
  --bg0: #060b14;
  --bg1: #0d1630;
  --line: rgba(255,255,255,0.12);
  --panel: rgba(8,12,24,0.72);
  --text: #eef3ff;
  --muted: #a9b8d8;
  --accent: #66d9ff;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(circle at top, #14254d 0%, var(--bg0) 60%);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}
#bg {
  display: block;
  width: 100%;
  height: 100%;
}
#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 20px;
}
.brand, .panel {
  pointer-events: auto;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.brand {
  padding: 18px 20px;
}
.eyebrow {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 8px;
}
.brand h1 {
  margin: 0 0 8px;
  font-size: 36px;
}
.brand p, .panel {
  color: var(--muted);
}
.panel {
  align-self: flex-end;
  margin-bottom: 20px;
  padding: 16px 18px;
}
.panel-title {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.16em;
  margin-bottom: 8px;
}
#selectionName {
  font-size: 24px;
  color: var(--text);
  margin-bottom: 6px;
}
#selectionDesc {
  font-size: 14px;
  line-height: 1.45;
  margin-bottom: 12px;
}
#launchBtn {
  appearance: none;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(180deg, #7fe4ff, #30b6ff);
  color: #03111e;
  font-weight: 700;
  padding: 12px 16px;
  cursor: pointer;
}
#launchBtn:hover { transform: translateY(-1px); }
@media (max-width: 700px) {
  #hud { padding: 12px; flex-direction: column; gap: 10px; }
  .brand, .panel { max-width: none; width: 100%; }
  .brand h1 { font-size: 28px; }
  .panel { align-self: stretch; margin-bottom: 0; }
}