:root {
  --bg: #0f0f17;
  --bg-elev: #1a1a26;
  --fg: #ececf3;
  --muted: #8a8a9c;
  --accent: #7c5cff;
  --accent-hover: #6e4dff;
  --border: #262635;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(ellipse at top, #1a1a2e 0%, var(--bg) 60%);
  color: var(--fg);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.hero {
  max-width: 460px;
  width: 100%;
  text-align: center;
}

h1 {
  font-size: 36px;
  margin: 0 0 8px;
  background: linear-gradient(90deg, #fff 0%, #b6a8ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  color: var(--muted);
  margin: 0 0 28px;
}

.cta { color: var(--muted); font-size: 14px; }

.room-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin: 0 auto 20px;
  display: flex; flex-direction: column; gap: 8px;
  max-width: 320px;
}

.label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 24px;
  letter-spacing: 2px;
  font-weight: 600;
}

.primary {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 999px;
  transition: background 0.15s ease, transform 0.1s ease;
}
.primary:hover { background: var(--accent-hover); }
.primary:active { transform: scale(0.98); }

.help {
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
  text-align: left;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
}
.help summary { cursor: pointer; color: var(--fg); }
.help p { margin: 10px 0 0; line-height: 1.6; }
.help code {
  font-size: 13px;
  letter-spacing: 0;
  background: rgba(255,255,255,0.06);
  padding: 1px 6px;
  border-radius: 4px;
}