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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f5f5;
  color: #333;
  min-height: 100vh;
}

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.6rem;
  color: #2e7d32;
  margin-bottom: 2px;
}

.subtitle {
  font-size: 0.85rem;
  color: #777;
  margin-bottom: 20px;
}

h2 {
  font-size: 1rem;
  color: #555;
  margin-bottom: 10px;
}

/* フォーム */
.form-section {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.form-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.form-row input {
  flex: 1;
  min-width: 120px;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.95rem;
}

.form-row input:focus {
  outline: none;
  border-color: #2e7d32;
}

button#addBtn {
  padding: 10px 20px;
  background: #2e7d32;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
}

button#addBtn:hover {
  background: #1b5e20;
}

.error-msg {
  color: #d32f2f;
  font-size: 0.85rem;
  margin-top: 8px;
}

/* 検索 */
.search-section {
  background: #fff;
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  gap: 10px;
}

#searchInput {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.95rem;
}

#searchInput:focus {
  outline: none;
  border-color: #2e7d32;
}

.result-count {
  font-size: 0.82rem;
  color: #888;
  white-space: nowrap;
}

/* 一覧 */
.list-section {
  background: #fff;
  border-radius: 10px;
  padding: 4px 0;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  overflow: hidden;
}

.empty-msg {
  padding: 24px 16px;
  text-align: center;
  color: #aaa;
  font-size: 0.9rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  background: #e8f5e9;
  color: #2e7d32;
  font-size: 0.85rem;
  padding: 10px 14px;
  text-align: left;
}

thead th:last-child {
  width: 50px;
}

tbody tr {
  border-bottom: 1px solid #f0f0f0;
}

tbody tr:last-child {
  border-bottom: none;
}

tbody tr:hover {
  background: #f9fbe7;
}

tbody td {
  padding: 12px 14px;
  font-size: 0.95rem;
}

.shelf-badge {
  display: inline-block;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 4px;
  padding: 2px 8px;
  font-weight: bold;
  font-size: 0.9rem;
}

.highlight {
  background: #fff9c4;
  border-radius: 2px;
}

.del-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #ccc;
  font-size: 1.1rem;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.15s;
}

.del-btn:hover {
  color: #d32f2f;
  background: #ffebee;
}

@media (max-width: 480px) {
  h1 { font-size: 1.3rem; }

  .form-row {
    flex-direction: column;
  }

  .form-row input,
  button#addBtn {
    width: 100%;
  }

  tbody td {
    padding: 10px 10px;
    font-size: 0.88rem;
  }

  thead th {
    padding: 8px 10px;
    font-size: 0.8rem;
  }
}