.digit-display {
  background: var(--glass);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  box-shadow: 0 0 64px 3px color-mix(in srgb, var(--accent) 11%, transparent);
  padding: 40px 20px;
  text-align: center;
  margin-bottom: 16px;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.digit-display.show {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}

.digit-display.good {
  background: rgba(74, 222, 128, 0.15);
  border-color: var(--good);
}

.digit-display.bad {
  background: rgba(228, 74, 74, 0.15);
  border-color: var(--bad);
}

#digit-show {
  font-size: 80px;
  font-weight: 800;
  font-family: monospace;
  color: var(--accent);
  letter-spacing: 4px;
}

.digit-display.bad #digit-show,
.digit-display.good #digit-show {
  color: var(--text);
  font-size: 40px;
}

.digit-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 12px;
  text-align: center;
  min-height: 50px;
}

.digit-entered {
  font-size: 28px;
  font-weight: 700;
  font-family: monospace;
  letter-spacing: 8px;
  color: var(--text);
}

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.key {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 18px;
  font-size: 22px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.1s;
}

.key:hover { border-color: var(--accent-dim); }
.key:active { transform: scale(0.96); }
.key:disabled { opacity: 0.4; cursor: not-allowed; }
.key.delete { color: var(--bad); }
.key.submit { color: var(--accent); background: color-mix(in srgb, var(--accent) 45%, transparent); border-color: var(--accent-dim); }