*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 15px;
  color: #1a1a1a;
  background: #f4f4f5;
  min-height: 100vh;
  padding-bottom: 72px;
}

.app-header {
  background: #fff;
  border-bottom: 1px solid #ddd;
  padding: 1rem 1.25rem;
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

.subtitle {
  margin: 0.25rem 0 0;
  color: #666;
  font-size: 0.9rem;
}

.tabs {
  display: flex;
  gap: 0;
  background: #fff;
  border-bottom: 1px solid #ddd;
  padding: 0 1rem;
}

.tab {
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  font-size: 1rem;
  color: #555;
}

.tab.active {
  color: #1a1a1a;
  border-bottom-color: #2563eb;
  font-weight: 600;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.panel-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
  margin-bottom: 1rem;
}

.table-wrap {
  overflow-x: auto;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 800px;
}

.data-table th,
.data-table td {
  border: 1px solid #ccc;
  padding: 0.45rem 0.5rem;
  text-align: left;
  vertical-align: middle;
}

.data-table thead th {
  background: #e8e8e8;
  font-weight: 600;
}

.data-table .group-header {
  text-align: center;
}

.data-table .subhead th {
  background: #f0f0f0;
  font-size: 0.85rem;
}

.data-table td.remain-zero {
  background: #ef4444 !important;
  color: #fff;
  font-weight: 700;
}

.data-table input,
.data-table select {
  width: 100%;
  min-width: 80px;
  padding: 0.25rem;
  font: inherit;
}

.data-table .readonly {
  background: #fafafa;
  font-weight: 600;
}

.btn {
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font: inherit;
  cursor: pointer;
}

.btn.primary {
  background: #2563eb;
  color: #fff;
}

.btn.secondary {
  background: #e5e7eb;
  color: #1a1a1a;
}

.btn.danger {
  background: #dc2626;
  color: #fff;
}

.btn.danger-outline {
  background: #fff;
  color: #dc2626;
  border: 1px solid #dc2626;
}

.btn.small {
  padding: 0.25rem 0.5rem;
  font-size: 0.85rem;
}

.btn:hover {
  filter: brightness(0.95);
}

.draft-card {
  margin-bottom: 1rem;
  background: #fff;
  border: 2px solid #2563eb;
  border-radius: 8px;
  padding: 1rem;
}

.draft-card.hidden {
  display: none;
}

.draft-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}

.draft-grid label.full {
  grid-column: 1 / -1;
}

.draft-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}

.draft-actions {
  margin-top: 0.75rem;
  display: flex;
  gap: 0.5rem;
}

.add-form {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.add-form h3 {
  margin: 0 0 0.75rem;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: flex-end;
}

.form-row label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}

.form-row input {
  padding: 0.4rem;
  font: inherit;
  min-width: 180px;
}

.print-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 6px;
  padding: 1rem;
}

.print-panel select {
  min-width: 220px;
  padding: 0.4rem;
  font: inherit;
}

.hint {
  color: #666;
  font-size: 0.9rem;
}

.erase-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: #fff;
  border-top: 1px solid #ddd;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal.hidden {
  display: none;
}

.modal-box {
  background: #fff;
  border-radius: 8px;
  padding: 1.5rem;
  max-width: 420px;
  width: 90%;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.modal-box p {
  margin: 0 0 1.25rem;
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: #1a1a1a;
  color: #fff;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  z-index: 101;
}

.toast.hidden {
  display: none;
}

.toast.error {
  background: #dc2626;
}

.empty-msg {
  padding: 1rem;
  color: #666;
  text-align: center;
}

.see-more-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.see-more-wrap.hidden {
  display: none;
}

@media (max-width: 600px) {
  .erase-bar {
    flex-wrap: wrap;
  }
}