:root {
  --color-bg: #f5f7fa;
  --color-card: #ffffff;
  --color-text: #1f2328;
  --color-muted: #6b7280;
  --color-border: #d9dee3;
  --color-primary: #1f6feb;
  --color-primary-dark: #1653b3;
  --color-ok: #2da44e;
  --color-info: #0969da;
  --color-warning: #bf8700;
  --color-error: #cf222e;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-primary);
  color: #fff;
}
.app-header h1 { font-size: 1.1rem; margin: 0; }
.app-nav { display: flex; gap: 6px; flex-wrap: wrap; }
.app-nav button {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
}
.app-nav button.active { background: #fff; color: var(--color-primary); font-weight: bold; }
.app-nav button:disabled { opacity: 0.4; cursor: not-allowed; }

main#view-root { max-width: 1200px; margin: 0 auto; padding: 16px; }

.app-footer {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.8rem;
  padding: 16px;
}

.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.view-header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 12px; }
.view-header h2 { margin: 0; }

.privacy-banner {
  background: #eaf6ec;
  border: 1px solid var(--color-ok);
  color: #1a5a2e;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.upload-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin: 16px 0; }
.upload-box { border: 1px dashed var(--color-border); border-radius: var(--radius); padding: 16px; }
.upload-box h3 { margin-top: 0; font-size: 1rem; }
.file-name { margin-top: 8px; font-size: 0.85rem; color: var(--color-muted); word-break: break-all; }

.form-row { display: flex; flex-wrap: wrap; gap: 16px; margin: 16px 0; }
.form-row label { display: flex; flex-direction: column; font-size: 0.85rem; color: var(--color-muted); gap: 4px; flex: 1 1 200px; }
.form-row input, .form-row select, .settings-grid input, .settings-grid select {
  padding: 8px; border: 1px solid var(--color-border); border-radius: 6px; font-size: 0.95rem; color: var(--color-text);
}

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
button {
  font-family: inherit;
  cursor: pointer;
  border-radius: 6px;
  padding: 10px 18px;
  font-size: 0.9rem;
  border: 1px solid transparent;
}
button.primary { background: var(--color-primary); color: #fff; }
button.primary:hover { background: var(--color-primary-dark); }
button.primary:disabled { background: #9db8e8; cursor: not-allowed; }
button.secondary { background: #fff; border-color: var(--color-border); color: var(--color-text); }
button.danger { background: #fff; border-color: var(--color-error); color: var(--color-error); }
.import-label { display: inline-block; }

.error-banner { color: var(--color-error); background: #fff1f0; border: 1px solid var(--color-error); padding: 8px 12px; border-radius: var(--radius); }
.busy-banner { color: var(--color-info); }
.success-banner { color: var(--color-ok); }
.warning-box { background: #fff8e6; border: 1px solid var(--color-warning); border-radius: var(--radius); padding: 10px 14px; margin-bottom: 12px; }
.warning-box ul { margin: 6px 0 0; padding-left: 20px; }

.muted { color: var(--color-muted); }
.hint { color: var(--color-muted); font-size: 0.8rem; }

.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.85rem; }
th, td { border: 1px solid var(--color-border); padding: 6px 8px; text-align: left; white-space: nowrap; }
td.editable { cursor: text; white-space: normal; }
td.editable:focus { outline: 2px solid var(--color-primary); }
.comment-cell { white-space: normal; min-width: 220px; }

.conf-badge { display: inline-block; font-size: 0.65rem; padding: 1px 5px; border-radius: 999px; margin-left: 4px; }
.conf-high { background: #dafbe1; color: #1a7f37; }
.conf-mid { background: #fff8c5; color: #9a6700; }
.conf-low { background: #ffebe9; color: #cf222e; }
.conf-unknown { background: #eee; color: #666; }

.level-badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: bold; color: #fff; }
.level-OK { background: var(--color-ok); }
.level-INFO { background: var(--color-info); }
.level-WARNING { background: var(--color-warning); }
.level-ERROR { background: var(--color-error); }

.result-row { cursor: pointer; }
.result-row:hover { background: #f0f6ff; }
.level-row-ERROR { background: #fff1f0; }
.level-row-WARNING { background: #fffaf0; }

.filter-row { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }

.monthly-totals { margin-top: 20px; }
.totals-table th { background: #f6f8fa; width: 25%; }

.detail-panel { margin-top: 20px; border-top: 2px solid var(--color-primary); padding-top: 16px; }
.detail-table { margin: 10px 0; }
.recommendation { font-weight: bold; }

.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.ai-toggle-box { margin-top: 20px; padding: 12px; border: 1px solid var(--color-border); border-radius: var(--radius); }

@media (max-width: 640px) {
  main#view-root { padding: 8px; }
  .card { padding: 12px; }
  th, td { padding: 4px 6px; font-size: 0.75rem; }
  .app-header h1 { font-size: 1rem; }
}