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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f5f7fa;
  color: #333;
  font-size: 15px;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
}

h1 {
  font-size: 1.4rem;
  margin-bottom: 16px;
  color: #1a1a2e;
  border-bottom: 2px solid #4a6fa5;
  padding-bottom: 8px;
}

h2 {
  font-size: 1rem;
  margin-bottom: 12px;
  color: #4a6fa5;
}

/* フォーム */
.form-section {
  background: #fff;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

@media (max-width: 500px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  color: #666;
  margin-bottom: 4px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 0.9rem;
  background: #fafafa;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #4a6fa5;
  background: #fff;
}

.btn-primary {
  background: #4a6fa5;
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  width: 100%;
}

.btn-primary:hover {
  background: #3a5f95;
}

/* フィルタ */
.filter-section {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

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

.filter-btn {
  padding: 5px 14px;
  border: 1px solid #ccc;
  border-radius: 20px;
  background: #fff;
  font-size: 0.82rem;
  cursor: pointer;
  color: #555;
}

.filter-btn.active {
  background: #4a6fa5;
  color: #fff;
  border-color: #4a6fa5;
}

/* 合計 */
.summary {
  background: #fff;
  border-radius: 8px;
  padding: 10px 16px;
  margin-bottom: 12px;
  font-size: 0.88rem;
  color: #555;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.summary span {
  white-space: nowrap;
}

.summary .amt-unpaid { color: #e67e22; font-weight: bold; }
.summary .amt-overdue { color: #e74c3c; font-weight: bold; }

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

.list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

/* カード */
.card {
  background: #fff;
  border-radius: 8px;
  padding: 12px 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  border-left: 4px solid #ccc;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card.status-unpaid {
  border-left-color: #f39c12;
  background: #fffbf2;
}

.card.status-overdue {
  border-left-color: #e74c3c;
  background: #fff5f5;
}

.card.status-paid {
  border-left-color: #95a5a6;
  background: #fafafa;
  opacity: 0.75;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  flex-wrap: wrap;
}

.card-vendor {
  font-weight: bold;
  font-size: 1rem;
}

.card-task {
  font-size: 0.9rem;
  color: #555;
}

.card-meta {
  display: flex;
  gap: 12px;
  font-size: 0.82rem;
  color: #666;
  flex-wrap: wrap;
}

.card-cost {
  font-size: 0.95rem;
  font-weight: bold;
  color: #333;
}

.card-memo {
  font-size: 0.8rem;
  color: #888;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: bold;
  white-space: nowrap;
}

.badge-unpaid { background: #fdeeba; color: #b7770d; }
.badge-overdue { background: #fce8e8; color: #c0392b; }
.badge-paid { background: #e8e8e8; color: #666; }

.card-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-action {
  padding: 5px 12px;
  border: none;
  border-radius: 5px;
  font-size: 0.78rem;
  cursor: pointer;
}

.btn-paid {
  background: #2ecc71;
  color: #fff;
}

.btn-paid:hover { background: #27ae60; }

.btn-unpaid {
  background: #f39c12;
  color: #fff;
}

.btn-unpaid:hover { background: #d68910; }

.btn-delete {
  background: #ecf0f1;
  color: #777;
}

.btn-delete:hover { background: #e0e4e6; }