.number-container {
  max-width: 500px;
  margin: 0 auto;
}

.result-display {
  background: var(--bg-card);
  border: 4px solid var(--neon-cyan);
  padding: 3rem;
  text-align: center;
  font-size: 5rem;
  font-family: var(--font-main);
  font-weight: 900;
  color: var(--neon-yellow);
  margin-bottom: 2rem;
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-shadow: 0 0 30px var(--neon-yellow);
  animation: result-glow 2s ease-in-out infinite;
}

@keyframes result-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(0, 245, 255, 0.3); }
  50% { box-shadow: 0 0 40px rgba(0, 245, 255, 0.6); }
}

.mode-selector {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  cursor: pointer;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 1.1rem;
  padding: 1rem 1.5rem;
  background: var(--bg-card);
  border: 2px solid var(--neon-purple);
  transition: all 0.3s;
}

.radio-label:hover {
  border-color: var(--neon-cyan);
}

.radio-label input {
  display: none;
}

.radio-mark {
  width: 24px;
  height: 24px;
  border: 2px solid var(--neon-purple);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.radio-label input:checked + .radio-mark {
  border-color: var(--neon-cyan);
}

.radio-label input:checked + .radio-mark::after {
  content: '';
  width: 12px;
  height: 12px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--neon-cyan);
}

.settings-panel {
  background: var(--bg-card);
  border: 2px solid var(--neon-purple);
  padding: 2rem;
  margin-bottom: 2rem;
}

.range-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.input-group input {
  padding: 0.8rem;
  background: var(--bg-secondary);
  border: 2px solid var(--neon-cyan);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
}

.input-group input:focus {
  outline: none;
  border-color: var(--neon-pink);
  box-shadow: 0 0 10px var(--neon-pink);
}

#numberList {
  width: 100%;
  height: 150px;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 2px solid var(--neon-cyan);
  color: var(--text-primary);
  font-family: var(--font-body);
  resize: vertical;
}

.generate-btn {
  width: 100%;
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
  border: none;
  color: white;
  font-family: var(--font-main);
  font-weight: 900;
  font-size: 1.3rem;
  cursor: pointer;
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.generate-btn:hover {
  box-shadow: 0 0 30px var(--neon-pink);
  transform: scale(1.02);
}

@media (max-width: 768px) {
  .result-display {
    font-size: 3rem;
    padding: 2rem;
  }
  
  .mode-selector {
    flex-direction: column;
    gap: 1rem;
  }
}