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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #f0f4f8;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 4px;
}

.subtitle {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 20px;
}

.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

.card h2 {
  font-size: 1rem;
  font-weight: 600;
  color: #1a1a2e;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid #e8ecf0;
}

/* 費目管理 */
.category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
  min-height: 32px;
}

.category-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #e8f4fd;
  color: #1565c0;
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: 500;
}

.category-tag .del-btn {
  background: none;
  border: none;
  color: #999;
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  line-height: 1;
}

.category-tag .del-btn:hover {
  color: #e53935;
}

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

.add-category input {
  flex: 1;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.9rem;
}

.add-category button {
  background: #1565c0;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.9rem;
  cursor: pointer;
  white-space: nowrap;
}

.add-category button:hover {
  background: #0d47a1;
}

/* 入力フォーム */
.input-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 120px;
}

.form-group label {
  font-size: 0.8rem;
  color: #666;
  font-weight: 500;
}

.form-group input,
.form-group select {
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.9rem;
  background: #fff;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #1565c0;
}

.btn-group {
  justify-content: flex-end;
}

.btn-primary {
  background: #e53935;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 20px;
  width: 100%;
}

.btn-primary:hover {
  background: #b71c1c;
}

/* フィルター */
.filter-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.filter-row label {
  font-size: 0.85rem;
  color: #666;
}

.filter-row select {
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 0.85rem;
  background: #fff;
}

/* テーブル */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th {
  background: #f0f4f8;
  padding: 10px 8px;
  text-align: left;
  font-weight: 600;
  color: #555;
  white-space: nowrap;
}

td {
  padding: 10px 8px;
  border-bottom: 1px solid #f0f4f8;
  white-space: nowrap;
}

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

tr:hover td {
  background: #fafafa;
}

.increase {
  color: #e53935;
  font-weight: 600;
}

.decrease {
  color: #2e7d32;
  font-weight: 600;
}

.neutral {
  color: #888;
}

.del-record-btn {
  background: none;
  border: none;
  color: #ccc;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 0 4px;
}

.del-record-btn:hover {
  color: #e53935;
}

.empty-msg {
  text-align: center;
  color: #bbb;
  padding: 20px;
  font-size: 0.9rem;
}

/* サマリー */
.summary-area {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.summary-card {
  flex: 1;
  min-width: 140px;
  background: #f8f9fa;
  border-radius: 10px;
  padding: 14px;
  text-align: center;
}

.summary-card .label {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 6px;
}

.summary-card .amount {
  font-size: 1.3rem;
  font-weight: 700;
}

.summary-card .rate {
  font-size: 0.8rem;
  color: #888;
  margin-top: 2px;
}

.no-data {
  color: #bbb;
  font-size: 0.9rem;
  padding: 10px 0;
}

/* グラフ */
.graph-area {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.graph-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.graph-label {
  min-width: 80px;
  font-size: 0.8rem;
  color: #555;
  text-align: right;
}

.graph-bar-wrap {
  flex: 1;
  background: #f0f4f8;
  border-radius: 6px;
  height: 28px;
  position: relative;
  overflow: hidden;
}

.graph-bar {
  height: 100%;
  border-radius: 6px;
  transition: width 0.4s ease;
  display: flex;
  align-items: center;
  padding-left: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  min-width: 4px;
}

.graph-bar.up {
  background: #e53935;
}

.graph-bar.down {
  background: #2e7d32;
}

.graph-value {
  min-width: 80px;
  font-size: 0.82rem;
  font-weight: 600;
  text-align: left;
}

.graph-empty {
  color: #bbb;
  font-size: 0.9rem;
  padding: 10px 0;
}

@media (max-width: 600px) {
  h1 { font-size: 1.2rem; }
  .card { padding: 14px; }
  .form-group { min-width: 100px; }
}