* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  text-align: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #2c7a7b;
  border-bottom: 2px solid #2c7a7b;
  padding-bottom: 8px;
}

h2 {
  font-size: 1rem;
  color: #555;
  margin-bottom: 12px;
}

section {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

/* フォーム */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

@media (max-width: 480px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: #666;
  margin-bottom: 4px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.95rem;
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: #2c7a7b;
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 10px;
  background: #2c7a7b;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: #235f60;
}

/* グラフ */
.chart-filter,
.list-filter {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chart-filter label,
.list-filter label {
  font-size: 0.85rem;
  color: #666;
}

.chart-filter select,
.list-filter select {
  padding: 6px 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.9rem;
  outline: none;
}

.canvas-wrapper {
  width: 100%;
  overflow-x: auto;
}

#chart {
  display: block;
  width: 100%;
  height: 200px;
}

/* 一覧 */
.record-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.record-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: #f9f9f9;
  border-radius: 6px;
  border-left: 4px solid #2c7a7b;
}

.record-item .record-info {
  flex: 1;
}

.record-item .record-date {
  font-size: 0.8rem;
  color: #888;
}

.record-item .record-main {
  font-size: 0.95rem;
  font-weight: 600;
}

.record-item .record-part {
  display: inline-block;
  font-size: 0.75rem;
  background: #e0f2f2;
  color: #2c7a7b;
  padding: 2px 7px;
  border-radius: 10px;
  margin-right: 6px;
}

.delete-btn {
  background: none;
  border: none;
  color: #ccc;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 6px;
  line-height: 1;
  transition: color 0.2s;
}

.delete-btn:hover {
  color: #e53e3e;
}

.no-data {
  text-align: center;
  color: #aaa;
  font-size: 0.9rem;
  padding: 12px;
}

.hidden {
  display: none;
}