:root {
  --primary-color: #6c5ce7;
  --secondary-color: #a29bfe;
  --text-color: #2d3436;
  --background-color: #f9f9f9;
  --accent-color: #ff7675;
  --shadow-color: rgba(0, 0, 0, 0.15);
  --underweight-color: #a2d2ff;
  --normal-color: #b8e994;
  --overweight-color: #ffeaa7;
  --obese-color: #ffbe76;
  --severely-obese-color: #ff7979;
  --bmr-below-average-color: #ff7979;
  --bmr-average-color: #b8e994;
  --bmr-above-average-color: #a2d2ff;
  --bmi-below-average-color: #ff7979;
  --bmi-average-color: #b8e994;
  --bmi-above-average-color: #a2d2ff;
}

body {
  font-family: "Noto Sans KR", sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  margin: 0;
  padding: 10px;
  box-sizing: border-box;
  flex-direction: column;
  overflow-x: hidden;
}

.container {
  background-color: white;
  padding: 1.5rem;
  border-radius: 25px;
  box-shadow: 0 15px 40px var(--shadow-color);
  max-width: 500px;
  width: 100%;
  margin-bottom: 1rem;
}

.logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo-icon {
  color: var(--primary-color);
  font-size: 2rem;
  margin-right: 1rem;
}

.version-info {
  text-align: center;
  margin-top: -1rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
}

h1 {
  color: var(--primary-color);
  text-align: center;
  font-weight: 600;
  font-size: 2rem;
}

.input-group {
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-color);
  font-weight: 500;
  font-size: 1rem;
  flex-basis: 30%;
  text-align: left;
}

input[type="number"],
select {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid var(--secondary-color);
  border-radius: 12px;
  font-size: 1rem;
  transition: all 0.3s ease;
  background-color: #fefefe;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
  flex-basis: 65%;
  box-sizing: border-box;
}

input[type="number"]:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
}

.result {
  background-color: var(--primary-color);
  padding: 1.5rem;
  border-radius: 15px;
  margin-top: 2rem;
  transition: all 0.3s ease;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.result h2 {
  color: white;
  margin-top: 0;
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.result p {
  font-size: 0.9rem;
  color: white;
  margin: 0.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  position: relative;
}

.result-value {
  font-weight: 600;
}

.tooltip {
  visibility: hidden;
  background-color: #333;
  color: #fff;
  text-align: center;
  border-radius: 6px;
  padding: 5px 10px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  margin-left: -60px;
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
}

.tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: #333 transparent transparent transparent;
}

.result p:hover .tooltip {
  visibility: visible;
  opacity: 1;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

.creator-info {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-color);
}

.creator-info a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
}

.underweight {
  color: var(--underweight-color);
}

.normal {
  color: var(--normal-color);
}

.overweight {
  color: var(--overweight-color);
}

.obese {
  color: var(--obese-color);
}

.severely-obese {
  color: var(--severely-obese-color);
}

.bmr-below-average {
  color: var(--bmr-below-average-color);
}

.bmr-average {
  color: var(--bmr-average-color);
}

.bmr-above-average {
  color: var(--bmr-above-average-color);
}
.bmi-below-average {
  color: var(--bmi-below-average-color);
}

.bmi-average {
  color: var(--bmi-average-color);
}

.bmi-above-average {
  color: var(--bmi-above-average-color);
}

@media (max-width: 500px) {
  .input-group {
    flex-direction: column;
    align-items: stretch;
  }

  .input-group label {
    text-align: left;
    margin-bottom: 5px;
    width: 100%;
  }

  .input-group input[type="number"],
  .input-group select {
    width: 100%;
    margin-bottom: 10px;
  }

  .container {
    padding: 1rem;
    margin-bottom: 1rem;
  }

  body {
    padding: 30px;
  }
}