html, body, main, header, footer {
  padding: 0px;
  margin: 0px;
}

#app {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 16px;
}

#app-title {
  text-align: center;
  font-size: 24px;
  font-weight: bold;
  color: #333;
  margin-bottom: 24px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.section-title {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #FF6B35;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: #555;
  margin-bottom: 6px;
}

.form-group input[type="number"],
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 16px;
  color: #333;
  background: #fafafa;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

.form-group input[type="number"]:focus,
.form-group select:focus {
  outline: none;
  border-color: #FF6B35;
  background: #fff;
}

.radio-group {
  display: flex;
  gap: 12px;
}

.radio-btn {
  flex: 1;
  padding: 10px 16px;
  border: 2px solid #ddd;
  border-radius: 8px;
  background: #fff;
  font-size: 15px;
  color: #666;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.radio-btn:hover {
  border-color: #FF6B35;
  color: #FF6B35;
}

.radio-btn.active {
  border-color: #FF6B35;
  background: #FFF3ED;
  color: #FF6B35;
  font-weight: bold;
}

.form-group input[type="range"] {
  width: 100%;
  accent-color: #FF6B35;
}

.result-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 16px 0;
  border-bottom: 1px solid #f0f0f0;
}

.result-item:last-child {
  border-bottom: none;
}

.result-item.highlight {
  background: #FFF3ED;
  margin: 0 -12px;
  padding: 16px 12px;
  border-radius: 8px;
}

.result-label {
  font-size: 14px;
  color: #888;
  min-width: 200px;
}

.result-value {
  font-size: 32px;
  font-weight: bold;
  color: #FF6B35;
}

.result-unit {
  font-size: 14px;
  color: #999;
}

.calorie-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.calorie-card {
  text-align: center;
  padding: 20px 12px;
  border-radius: 10px;
  color: #fff;
}

.calorie-card.maintain {
  background: linear-gradient(135deg, #607D8B, #78909C);
}

.calorie-card.cut {
  background: linear-gradient(135deg, #4CAF50, #66BB6A);
}

.calorie-card.bulk {
  background: linear-gradient(135deg, #2196F3, #42A5F5);
}

.calorie-card h3 {
  font-size: 14px;
  font-weight: 500;
  margin: 0 0 8px 0;
  opacity: 0.9;
}

.calorie-value {
  display: block;
  font-size: 28px;
  font-weight: bold;
}

.calorie-unit {
  display: block;
  font-size: 12px;
  opacity: 0.85;
  margin-top: 2px;
}

.calorie-desc {
  font-size: 11px;
  opacity: 0.8;
  margin: 6px 0 0 0;
}

#macro-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
}

#macro-title {
  font-size: 15px;
  color: #555;
  margin-bottom: 12px;
}

.macro-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.macro-item {
  text-align: center;
  padding: 14px 8px;
  background: #f9f9f9;
  border-radius: 8px;
}

.macro-label {
  display: block;
  font-size: 13px;
  color: #888;
  margin-bottom: 4px;
}

.macro-value {
  font-size: 24px;
  font-weight: bold;
  color: #333;
}

.macro-unit {
  font-size: 12px;
  color: #999;
  margin-left: 2px;
}

#__fork {
  text-align: center;
  padding: 20px 0;
}

#__fork button {
  padding: 10px 28px;
  background: #FF6B35;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  cursor: pointer;
  transition: background 0.2s;
}

#__fork button:hover {
  background: #e55a2b;
}

#features, #scenarios, #FAQ {
  max-width: 960px;
  margin: 0 auto 20px;
  padding: 24px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

#features h2, #scenarios h2, #FAQ h2 {
  font-size: 18px;
  color: #333;
  margin-bottom: 12px;
}

#features p {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

#scenarios ul {
  padding-left: 20px;
  font-size: 14px;
  color: #666;
  line-height: 1.8;
}

#FAQ dl {
  margin: 0;
}

#FAQ dt {
  font-size: 15px;
  font-weight: bold;
  color: #444;
  margin-top: 16px;
}

#FAQ dd {
  font-size: 14px;
  color: #666;
  line-height: 1.8;
  margin: 6px 0 0 0;
}

footer {
  text-align: center;
  padding: 20px 16px;
  font-size: 12px;
  color: #999;
}

footer a {
  color: #FF6B35;
  text-decoration: none;
}

@media (max-width: 768px) {
  .calorie-grid {
    grid-template-columns: 1fr;
  }

  .macro-grid {
    grid-template-columns: 1fr;
  }

  .result-label {
    min-width: 140px;
    font-size: 13px;
  }

  .result-value {
    font-size: 26px;
  }
}