.calculator.percent {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1rem;
  font-family: "Segoe UI", sans-serif;
  background: #f9f9f9;
  border-radius: 8px;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.05);
}

.calculator.percent h1 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  color: #333;
}

.calculator.percent .description {
  font-size: 1rem;
  color: #666;
  margin-bottom: 1.5rem;
}

.calculator-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.calculator-left,
.calculator-right {
  flex: 1 1 400px;
}

.calc-block,
.result-block {
  background: #fff;
  padding: 1.5rem;
  border-radius: 6px;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.03);
}

.calc-block label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 500;
  color: #444;
}

.calc-block input,
.calc-block select {
  width: 100%;
  padding: 0.6rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  margin-top: 0.3rem;
  box-sizing: border-box;
}

.calc-block button {
  margin-top: 1rem;
  padding: 0.7rem 1.2rem;
  font-size: 1rem;
  background: #0078d4;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.calc-block button:hover {
  background: #005fa3;
}

.result-block h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: #333;
}

.result-output ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.result-output li {
  font-size: 1.1rem;
  color: #222;
  padding: 0.5rem 0;
  border-bottom: 1px dashed #ddd;
}

@media (max-width: 768px) {
  .calculator-layout {
    flex-direction: column;
  }
}