:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", sans-serif;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #66717f;
  --line: #dce1e7;
  --brand: #182b49;
  --accent: #2877c7;
  --soft: #eef5fc;
  --danger: #a42828;
  --shadow: 0 10px 30px rgba(18, 38, 63, 0.08);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.main { min-width: 0; padding: 34px; }
.page-header { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 22px; }
.eyebrow { font-size: 12px; color: var(--accent); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.page-header h1 { margin: 5px 0 8px; font-size: clamp(25px, 3vw, 36px); letter-spacing: -.035em; }
.lead { max-width: 760px; color: var(--muted); line-height: 1.65; margin: 0; }
.status-pill { white-space: nowrap; border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 8px 12px; color: var(--muted); font-size: 12px; }
.grid { display: grid; grid-template-columns: minmax(320px, 480px) minmax(0, 1fr); gap: 22px; align-items: start; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; }
.panel-header { padding: 17px 20px; border-bottom: 1px solid var(--line); }
.panel-header h3 { margin: 0; font-size: 15px; }
.panel-body { padding: 20px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; align-items: start; }
.form-grid > div:has(textarea) { grid-column: 1 / -1; }
.form-row { display: grid; grid-template-columns: 1fr 110px; gap: 10px; align-items: center; }
.form-row.full { grid-template-columns: 1fr; }
label { display: block; font-size: 13px; font-weight: 700; color: #344150; margin-bottom: 6px; }
.hint { display: block; color: var(--muted); font-size: 11px; font-weight: 400; margin-top: 4px; line-height: 1.45; }
input, select, textarea { width: 100%; border: 1px solid #cbd2db; border-radius: 8px; background: white; color: var(--ink); padding: 10px 11px; outline: none; }
input[type="number"] { -moz-appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button, input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(40,119,199,.12); }
textarea { min-height: 92px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.unit-input { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px; }
.unit { color: var(--muted); font-size: 12px; min-width: 30px; }
.form-actions { grid-column: 1 / -1; display: flex; gap: 10px; margin-top: 9px; }
.primary { background: var(--brand); color: white; border: 1px solid var(--brand); border-radius: 8px; padding: 11px 16px; font-weight: 800; }
.secondary { background: white; color: var(--brand); border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; font-weight: 700; }
.error { border: 1px solid #ebc4c4; color: var(--danger); background: #fff5f5; border-radius: 9px; padding: 12px 14px; line-height: 1.5; }
.empty { color: var(--muted); min-height: 220px; display: grid; place-items: center; text-align: center; padding: 40px; }
.summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-bottom: 18px; }
.summary-card { border: 1px solid var(--line); border-radius: 10px; padding: 14px; background: #fafbfc; }
.summary-card .label { color: var(--muted); font-size: 11px; margin-bottom: 6px; }
.summary-card .value { font-weight: 800; font-size: 20px; letter-spacing: -.02em; overflow-wrap: anywhere; }
.summary-card .sub { color: var(--muted); font-size: 11px; margin-top: 4px; }
.result-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 10px 0; }
.result-toolbar h4 { margin: 0; font-size: 14px; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 9px; max-height: 520px; }
table { width: 100%; border-collapse: collapse; min-width: 760px; font-variant-numeric: tabular-nums; }
th, td { padding: 9px 11px; border-bottom: 1px solid var(--line); text-align: right; font-size: 12px; white-space: nowrap; }
th { position: sticky; top: 0; z-index: 1; background: #f7f9fb; color: #4b5968; font-weight: 800; }
th:first-child, td:first-child { text-align: left; }
tr:last-child td { border-bottom: 0; }
.notice { margin-top: 14px; padding: 12px 14px; background: var(--soft); border: 1px solid #d7e7f8; color: #37516b; border-radius: 9px; font-size: 12px; line-height: 1.55; }
.formula { grid-column: 1 / -1; margin-top: 15px; padding: 13px; border-left: 3px solid var(--accent); background: #f8fafc; color: #46566a; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; line-height: 1.65; overflow: auto; }
@media (max-width: 1050px) {
  .grid { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 760px) {
  .main { padding: 20px 14px 40px; }
  .page-header { display: block; }
  .status-pill { display: inline-block; margin-top: 12px; }
  .summary-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 460px) {
  .summary-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}