/* Riegel 1 — Rot und Grün, dann Der Blitz. */
.riegel-screen[data-riegel="1"] { grid-template-rows: auto 1fr auto; }
.riegel-screen[data-riegel="1"] .buehne1 {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 40vh;
  display: grid;
  place-items: center;
}
.unten1 { display: grid; gap: 10px; justify-items: center; }

/* Serienpunkte */
.punkte { display: flex; gap: 10px; }
.punkt {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--panel-tief);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.8), 0 0 0 2px var(--messing-dunkel);
  transition: background 0.3s, box-shadow 0.3s;
}
.punkt:nth-child(2n) { margin-right: 8px; }
.punkt.voll {
  background: radial-gradient(circle at 35% 30%, #f5dc9a, var(--messing) 60%);
  box-shadow: 0 0 12px rgba(232, 200, 119, 0.6), 0 0 0 2px var(--messing);
}

/* Serie 1: die Lampe */
.lampe {
  appearance: none;
  border: 0;
  cursor: pointer;
  width: min(64vw, 250px);
  height: min(64vw, 250px);
  border-radius: 50%;
  color: rgba(0, 0, 0, 0.55);
  font-size: 30px;
  touch-action: manipulation;
  transition: background 0.12s, box-shadow 0.12s;
  box-shadow: 0 0 0 10px var(--panel-tief), 0 0 0 12px var(--messing-dunkel), 0 26px 50px rgba(0, 0, 0, 0.65);
}
.lampe.rot {
  background: radial-gradient(circle at 35% 30%, #ff7b6b, #b3121b 55%, #5a0a10 100%);
  box-shadow: 0 0 0 10px var(--panel-tief), 0 0 0 12px var(--messing-dunkel), 0 0 60px rgba(192, 57, 43, 0.45), 0 26px 50px rgba(0, 0, 0, 0.65);
}
.lampe.gruen {
  background: radial-gradient(circle at 35% 30%, #b8ffb0, #2fbf4a 55%, #146b2a 100%);
  box-shadow: 0 0 0 10px var(--panel-tief), 0 0 0 12px var(--messing-dunkel), 0 0 70px rgba(47, 191, 74, 0.55), 0 26px 50px rgba(0, 0, 0, 0.65);
}
.lampe:active { transform: translateY(4px); }

/* Serie 2: der Blitz */
.halten { touch-action: none; user-select: none; -webkit-user-select: none; }
.riegel-screen[data-riegel="1"]::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: #fff;
  opacity: 0;
  z-index: 5;
}
.riegel-screen[data-riegel="1"].blitz::after { opacity: 0.92; }
.riegel-screen[data-riegel="1"].flackern::after { opacity: 0.16; background: #cfd6dd; }