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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f0f4f8;
  color: #333;
  min-height: 100vh;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  text-align: center;
  font-size: 1.4rem;
  color: #2c7a7b;
  margin-bottom: 16px;
}

/* 日付ナビゲーション */
.date-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
  background: #fff;
  border-radius: 10px;
  padding: 10px 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.date-nav button {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: #2c7a7b;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.2s;
}

.date-nav button:hover {
  background: #e6f7f7;
}

#currentDate {
  font-size: 1rem;
  font-weight: bold;
  min-width: 120px;
  text-align: center;
}

/* 入力フォーム */
.form-card {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  margin-bottom: 16px;
}

.form-row {
  margin-bottom: 12px;
}

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

.category-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.cat-btn {
  flex: 1;
  min-width: 80px;
  padding: 8px 4px;
  border: 2px solid #ddd;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
  text-align: center;
}

.cat-btn.active {
  border-color: #2c7a7b;
  background: #e6f7f7;
  color: #2c7a7b;
  font-weight: bold;
}

.cat-btn:hover {
  border-color: #2c7a7b;
}

input[type="time"],
input[type="text"] {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
  transition: border 0.2s;
}

input[type="time"]:focus,
input[type="text"]:focus {
  border-color: #2c7a7b;
}

.add-btn {
  width: 100%;
  padding: 12px;
  background: #2c7a7b;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  font-weight: bold;
  transition: background 0.2s;
}

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

/* サマリー */
.summary {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.summary-item {
  flex: 1;
  min-width: 90px;
  background: #fff;
  border-radius: 10px;
  padding: 10px 8px;
  text-align: center;
  font-size: 0.85rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.summary-item strong {
  display: block;
  font-size: 1.4rem;
  color: #2c7a7b;
  margin-top: 2px;
}

/* 記録リスト */
.record-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.record-item {
  background: #fff;
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.record-category {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.record-info {
  flex: 1;
}

.record-time {
  font-size: 1rem;
  font-weight: bold;
  color: #2c7a7b;
}

.record-label {
  font-size: 0.85rem;
  color: #555;
  font-weight: bold;
}

.record-memo {
  font-size: 0.85rem;
  color: #777;
  margin-top: 2px;
}

.delete-btn {
  background: none;
  border: none;
  color: #ccc;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: color 0.2s;
  flex-shrink: 0;
}

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

.empty-msg {
  text-align: center;
  color: #aaa;
  padding: 32px 0;
  font-size: 0.95rem;
}

/* カテゴリ別のボーダー色 */
.record-item[data-category="食事"] {
  border-left: 4px solid #f6ad55;
}
.record-item[data-category="水分"] {
  border-left: 4px solid #63b3ed;
}
.record-item[data-category="排泄"] {
  border-left: 4px solid #68d391;
}

@media (max-width: 375px) {
  h1 { font-size: 1.2rem; }
  .cat-btn { font-size: 0.8rem; padding: 7px 2px; }
  .summary-item { font-size: 0.8rem; }
}