:root {
  --bg: #f6f7f3;
  --surface: #ffffff;
  --surface-muted: #eef4f1;
  --ink: #1e2723;
  --muted: #66716d;
  --line: #dbe2dc;
  --primary: #176b52;
  --primary-dark: #0f4e3c;
  --accent: #b45f1a;
  --danger: #b12a34;
  --warn: #a36200;
  --info: #276b93;
  --shadow: 0 10px 30px rgba(30, 39, 35, 0.08);
  font-family: "Segoe UI", "Yu Gothic UI", "Meiryo", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(180deg, rgba(246, 247, 243, 0.8), rgba(246, 247, 243, 1)),
    radial-gradient(circle at top right, rgba(23, 107, 82, 0.08), transparent 38%);
}

body.auth-locked {
  overflow: hidden;
}

button,
input,
select {
  font: inherit;
}

button,
.file-button {
  border: 0;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  min-height: 40px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  white-space: nowrap;
}

button:hover,
.file-button:hover {
  background: var(--primary-dark);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.secondary {
  background: #e7eee9;
  color: #14392e;
  border: 1px solid #cad8d0;
}

.secondary:hover {
  background: #dbe8e1;
}

.ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--line);
}

.ghost:hover {
  background: #f1f4ef;
  color: var(--ink);
}

.danger-ghost {
  color: var(--danger);
  border-color: rgba(177, 42, 52, 0.25);
}

.danger-ghost:hover {
  background: #fff2f2;
  color: var(--danger);
}

.file-button {
  position: relative;
  overflow: hidden;
}

.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  padding: 24px clamp(16px, 3vw, 36px) 18px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 6px;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 20px;
}

.subtitle,
.panel-head p,
.form-hint,
.sync-status {
  color: var(--muted);
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  max-width: 720px;
}

.app-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 0 clamp(16px, 3vw, 36px) 14px;
  border-bottom: 1px solid var(--line);
}

.app-tab {
  background: transparent;
  color: var(--muted);
  border: 1px solid transparent;
}

.app-tab:hover {
  background: #eef3ee;
  color: var(--ink);
}

.app-tab[aria-pressed="true"] {
  background: var(--ink);
  color: #fff;
}

main {
  padding: 18px clamp(16px, 3vw, 36px) 40px;
}

.sync-status {
  min-height: 24px;
  margin: 0 0 12px;
  font-size: 14px;
}

.view {
  display: none;
}

.view.is-active {
  display: block;
}

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

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.panel-head p {
  margin: 5px 0 0;
  font-size: 14px;
}

.workspace,
.master-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(420px, 1.2fr);
  gap: 18px;
  align-items: start;
}

.master-grid {
  grid-template-columns: repeat(3, minmax(260px, 1fr));
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(150px, 1fr));
  gap: 12px;
}

.field-grid.single {
  grid-template-columns: 1fr;
}

.field-grid label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field-grid .wide {
  grid-column: span 2;
}

input,
select {
  width: 100%;
  min-height: 40px;
  border: 1px solid #cfd8d1;
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  padding: 0 10px;
}

input:focus,
select:focus {
  border-color: var(--primary);
  outline: 2px solid rgba(23, 107, 82, 0.16);
}

.button-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.form-hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.6;
}

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.filters input {
  min-width: 220px;
}

.kpi-grid,
.recommendation-highlights {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.kpi,
.recommendation-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 5px solid var(--primary);
  border-radius: 8px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.kpi span,
.recommendation-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.kpi strong,
.recommendation-card strong {
  display: block;
  margin-top: 6px;
  font-size: 26px;
}

.kpi small,
.recommendation-card small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.recommendation-card.needed {
  border-left-color: var(--danger);
}

.recommendation-card.material-needed {
  border-left-color: var(--warn);
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.compact-table-wrap {
  margin-top: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.three-table-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 0.72fr;
  gap: 14px;
}

.three-table-grid table {
  min-width: 420px;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f2f6f3;
  color: #41514a;
  font-size: 12px;
  font-weight: 800;
}

tr:last-child td {
  border-bottom: 0;
}

.number {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.muted {
  color: var(--muted);
}

.stock-negative,
.recommendation-needed {
  color: var(--danger);
  font-weight: 800;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  background: var(--surface-muted);
  color: #275445;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 800;
}

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

.row-actions button {
  min-height: 32px;
  padding: 0 10px;
}

.edit-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  background: #fff4df;
  color: #8a4d00;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 800;
}

.hidden {
  display: none !important;
}

.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  background: rgba(16, 22, 20, 0.55);
  padding: 24px;
}

.auth-card {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
  padding: 24px;
}

.auth-card label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 18px 0 12px;
  font-weight: 800;
}

.auth-message {
  margin: 10px 0 0;
  color: var(--danger);
  min-height: 20px;
}

.term-guide {
  margin: 12px 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  padding: 10px 12px;
}

.term-guide summary {
  cursor: pointer;
  font-weight: 800;
}

.term-guide dl {
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
}

.term-guide div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px;
}

.term-guide dt {
  color: var(--primary);
  font-weight: 800;
}

.term-guide dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.amazon-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.summary-note {
  border: 1px solid var(--line);
  border-left: 5px solid var(--info);
  border-radius: 8px;
  padding: 12px;
  background: #fff;
}

.summary-note strong {
  display: block;
}

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

.recommendation-action-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.setting-input {
  width: 86px;
  min-height: 32px;
  text-align: right;
}

@media (max-width: 1160px) {
  .workspace,
  .master-grid,
  .three-table-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid,
  .recommendation-highlights,
  .amazon-summary {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }
}

@media (max-width: 760px) {
  .topbar {
    flex-direction: column;
  }

  .top-actions,
  .filters,
  .recommendation-action-buttons {
    justify-content: stretch;
    width: 100%;
  }

  .top-actions > *,
  .filters > *,
  .recommendation-action-buttons > * {
    flex: 1 1 160px;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .field-grid .wide {
    grid-column: auto;
  }

  .kpi-grid,
  .recommendation-highlights,
  .amazon-summary {
    grid-template-columns: 1fr;
  }

  .panel-head {
    flex-direction: column;
  }

  h1 {
    font-size: 30px;
  }
}