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

:root {
  --bg: #1a1a2e;
  --surface: #16213e;
  --surface2: #0f3460;
  --accent: #e94560;
  --accent-hover: #d63851;
  --success: #4ecca3;
  --warning: #ffd93d;
  --danger: #e94560;
  --text: #eee;
  --text-muted: #999;
  --radius: 12px;
  --border: rgba(255,255,255,0.12);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
}

/* ナビゲーション */
.navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}

.navbar nav {
  display: flex;
  gap: 4px;
}

.navbar nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  transition: background 0.2s, color 0.2s;
}

.navbar nav a:hover,
.navbar nav a.active {
  background: var(--surface2);
  color: var(--text);
}

.navbar .logout-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  transition: border-color 0.2s;
}

.navbar .logout-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* コンテナ */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 20px;
}

/* カード */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card h2 {
  font-size: 16px;
  margin-bottom: 16px;
  color: var(--text-muted);
  font-weight: 500;
}

/* サマリーカード */
.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.summary-card .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.summary-card .value {
  font-size: 28px;
  font-weight: 700;
}

.summary-card .value.income { color: var(--success); }
.summary-card .value.expense { color: var(--accent); }
.summary-card .value.profit { color: var(--warning); }

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

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

thead th {
  text-align: left;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  white-space: nowrap;
}

tbody td {
  padding: 10px 12px;
  font-size: 14px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  white-space: nowrap;
}

tbody tr:hover {
  background: rgba(255,255,255,0.03);
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.badge-income { background: rgba(78,204,163,0.15); color: var(--success); }
.badge-expense { background: rgba(233,69,96,0.15); color: var(--accent); }
.badge-salary { background: rgba(255,217,61,0.15); color: var(--warning); }

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
}

.btn:hover { opacity: 0.9; }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-success {
  background: var(--success);
  color: #1a1a2e;
}

.btn-outline {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-danger {
  background: rgba(233,69,96,0.15);
  color: var(--accent);
}

/* フォーム */
.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* モーダル */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 90%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h3 {
  font-size: 18px;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* ツールバー */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.toolbar .year-select {
  padding: 8px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
}

/* 金額フォーマット */
.amount {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.amount.positive { color: var(--success); }
.amount.negative { color: var(--accent); }

/* カスタムダイアログ */
.dialog-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 300;
  align-items: center;
  justify-content: center;
}
.dialog-overlay.active { display: flex; }

.dialog-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 90%;
  max-width: 380px;
  text-align: center;
}

.dialog-icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.dialog-msg {
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 20px;
}

.dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
}

/* アクションボタン群 */
.actions {
  display: flex;
  gap: 4px;
}

/* レスポンシブ */
@media (max-width: 640px) {
  .navbar { padding: 0 12px; }
  .navbar nav { gap: 0; }
  .navbar nav a { padding: 8px 8px; font-size: 12px; }
  .container { padding: 16px 12px; }
  .form-row { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: 1fr; }
  .summary-card .value { font-size: 22px; }
}