body {
  font-family: "Hiragino Sans", "Meiryo", sans-serif;
  background: #f5f5f7;
  margin: 0;
  padding: 40px 16px;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  background: white;
  padding: 32px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

h1 {
  font-size: 22px;
  margin-bottom: 4px;
}

h2 {
  font-size: 16px;
  margin-top: 28px;
}

.daily-comment {
  margin-top: 16px;
  padding: 12px;
  background: #eef4ff;
  border-radius: 8px;
  font-size: 14px;
}

.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.price-card {
  display: flex;
  justify-content: space-between;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 12px;
  background: #fafafa;
}

.price-label {
  font-weight: bold;
  font-size: 13px;
  color: #555;
}

.price-value {
  font-size: 18px;
  font-weight: bold;
}

canvas {
  margin-top: 24px;
}

form {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

label {
  font-size: 13px;
}

input[type="number"] {
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 6px;
  width: 140px;
}

button {
  padding: 10px 16px;
  background: #2d6cdf;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
}

.hint {
  font-size: 12px;
  color: #888;
}

.flash {
  list-style: none;
  padding: 0;
}

.flash-error {
  color: #c0392b;
}

.flash-success {
  color: #27ae60;
}