* {
  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: 600px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #1a1a2e;
  text-align: center;
}

h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #444;
}

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

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

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

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: #4a90d9;
}

/* ボタン */
.btn-primary {
  width: 100%;
  padding: 12px;
  background: #4a90d9;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: #3578c0;
}

.btn-secondary {
  width: 100%;
  padding: 12px;
  background: #f0f0f0;
  color: #555;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: #e0e0e0;
}

/* サマリー */
.summary-section {
  background: #1a1a2e;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 16px;
  text-align: center;
  color: #fff;
}

.summary-label {
  display: block;
  font-size: 0.85rem;
  color: #aaa;
  margin-bottom: 4px;
}

.summary-amount {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: #ff6b6b;
}

.summary-sub {
  margin-top: 8px;
  font-size: 0.85rem;
  color: #aaa;
}

/* フィルター */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.filter-btn {
  flex: 1;
  padding: 8px;
  border: 1px solid #ddd;
  border-radius: 6px;
  background: #fff;
  color: #666;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn.active {
  background: #4a90d9;
  border-color: #4a90d9;
  color: #fff;
  font-weight: 600;
}

/* リスト */
.list-section {
  margin-bottom: 24px;
}

.record-list {
  list-style: none;
}

.record-item {
  background: #fff;
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.record-item.paid {
  opacity: 0.55;
  background: #f9f9f9;
}

.record-info {
  flex: 1;
}

.record-client {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.record-amount {
  font-size: 1.1rem;
  font-weight: 700;
  color: #4a90d9;
  margin-bottom: 4px;
}

.record-item.paid .record-amount {
  color: #999;
}

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

.record-memo {
  font-size: 0.8rem;
  color: #999;
  margin-top: 2px;
}

.status-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 4px;
}

.badge-unpaid {
  background: #fff0f0;
  color: #e53935;
}

.badge-paid {
  background: #e8f5e9;
  color: #43a047;
}

.record-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 72px;
}

.btn-paid {
  padding: 6px 10px;
  background: #43a047;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-paid:hover {
  background: #388e3c;
}

.btn-delete {
  padding: 6px 10px;
  background: #f5f5f5;
  color: #999;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-delete:hover {
  background: #ffe0e0;
  color: #e53935;
  border-color: #e53935;
}

.empty-msg {
  text-align: center;
  color: #bbb;
  padding: 32px 0;
  font-size: 0.9rem;
}

/* モーダル */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}

.modal.hidden {
  display: none;
}

.modal-box {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 360px;
}

.modal-box h3 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.modal-box p {
  color: #555;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}