:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --ink: #17202a;
  --muted: #617080;
  --line: #d9e0e7;
  --panel: #ffffff;
  --accent: #176b87;
  --accent-dark: #0f4d61;
  --danger: #b42318;
  --ok: #157347;
  --warn: #9a6700;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.app-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 28px;
  background: #102a43;
  color: #fff;
  align-items: center;
}

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: 24px;
  font-weight: 700;
}

h2 {
  font-size: 18px;
}

.app-header p,
.panel-title span {
  color: #d1dae5;
  font-size: 13px;
  margin-top: 4px;
}

.header-controls,
.report-controls,
.actions {
  display: flex;
  gap: 10px;
  align-items: end;
  flex-wrap: wrap;
}

main {
  padding: 18px 24px 40px;
}

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 12px;
}

button,
select,
input {
  font: inherit;
}

button {
  border: 0;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  min-height: 36px;
  padding: 0 14px;
  cursor: pointer;
  white-space: nowrap;
}

button:hover {
  background: var(--accent-dark);
}

button.ghost {
  background: #e9eef3;
  color: var(--ink);
}

button.danger {
  background: var(--danger);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tabs button {
  background: #e7ecf1;
  color: #24364b;
}

.tabs button.active {
  background: var(--accent);
  color: #fff;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 18px;
}

.panel-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  margin-bottom: 14px;
}

.panel-title span {
  color: var(--muted);
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.summary-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.summary-card strong {
  display: block;
  font-size: 28px;
  margin-top: 8px;
}

.summary-card span {
  color: var(--muted);
  font-size: 13px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(160px, 1fr));
  gap: 12px;
  align-items: end;
  margin-bottom: 16px;
}

.form-grid.wide {
  grid-template-columns: repeat(4, minmax(130px, 1fr));
}

label {
  display: grid;
  gap: 5px;
  font-size: 13px;
  color: var(--muted);
}

input,
select {
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 36px;
  padding: 6px 9px;
  background: #fff;
  color: var(--ink);
}

.file-input input {
  padding-top: 7px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 9px 8px;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f0f3f6;
  color: #35465a;
  font-weight: 700;
}

td.num,
th.num {
  text-align: right;
}

.row-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 0 9px;
  font-size: 12px;
  background: #e8eef5;
  color: #2d435a;
}

.badge.ok {
  background: #dcf2e5;
  color: var(--ok);
}

.badge.warn {
  background: #fff2cc;
  color: var(--warn);
}

.badge.danger {
  background: #fde2df;
  color: var(--danger);
}

.message {
  min-height: 24px;
  color: var(--accent-dark);
}

.totals {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 10px;
  margin-top: 16px;
  margin-bottom: 16px;
}

.total-box {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: #fbfcfd;
}

.total-box span {
  color: var(--muted);
  font-size: 12px;
}

.total-box strong {
  display: block;
  margin-top: 4px;
  font-size: 18px;
}

@media (max-width: 980px) {
  .app-header,
  .two-column,
  .panel-title {
    display: block;
  }

  .header-controls,
  .report-controls {
    margin-top: 12px;
  }

  .summary-grid,
  .form-grid,
  .form-grid.wide,
  .totals {
    grid-template-columns: 1fr;
  }

  main {
    padding: 14px;
  }
}

@media print {
  body {
    background: #fff;
  }

  .app-header,
  .tabs,
  .report-controls,
  body > main > section:not(#report) {
    display: none !important;
  }

  main {
    padding: 0;
  }

  .panel {
    border: 0;
    padding: 0;
  }
}