body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111;
  color: white;
}

.display.dual {
  height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border-right: 2px solid #333;
}

.panel:last-child {
  border-right: none;
}

.label {
  font-size: 4vw;
  opacity: 0.75;
  margin-bottom: 2vw;
}

.timer {
  font-size: 13vw;
  font-weight: 800;
  letter-spacing: -0.06em;
}

.timer.running {
  color: #ffffff;
}

.status {
  font-size: 3vw;
  opacity: 0.65;
}

.admin {
  padding: 32px;
}

.admin h1 {
  margin-bottom: 20px;
}

.admin input {
  font-size: 24px;
  padding: 12px;
  width: 260px;
  margin-bottom: 30px;
}

.admin-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.admin-panel {
  background: #1b1b1b;
  padding: 24px;
  border-radius: 16px;
}

.admin-panel h2 {
  margin-top: 0;
}

.time {
  font-size: 64px;
  font-weight: bold;
  margin-bottom: 24px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(140px, 220px));
  gap: 14px;
}

button {
  font-size: 22px;
  padding: 20px;
  border: none;
  border-radius: 12px;
  cursor: pointer;
}

#error {
  color: #ff6666;
  font-size: 20px;
}