:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #15202b;
  --muted: #637083;
  --line: #d8dee8;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --warn-bg: #fff7ed;
  --warn-line: #fed7aa;
  --warn-text: #9a3412;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.45;
}

button,
input,
select {
  font: inherit;
}

.shell {
  width: min(1380px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.topbar h1 {
  margin: 0;
  font-size: 28px;
  line-height: 1.1;
}

.topbar p {
  margin: 4px 0 0;
  color: var(--muted);
}

.calc-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  margin: 0 0 16px;
}

.calc-tab {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid transparent;
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
  color: var(--muted);
  padding: 8px 14px;
  text-decoration: none;
}

.calc-tab:hover {
  background: #eef8f6;
  color: var(--accent-dark);
}

.calc-tab.active {
  border-color: var(--line);
  background: var(--panel);
  color: var(--accent-dark);
  font-weight: 700;
  transform: translateY(1px);
}

.sub-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -4px 0 16px;
}

.sub-tab {
  min-height: 36px;
  border-radius: 999px;
  color: var(--muted);
  padding: 6px 13px;
}

.sub-tab.active {
  border-color: var(--accent);
  background: #e7f5f2;
  color: var(--accent-dark);
  font-weight: 700;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(360px, 0.8fr);
  gap: 16px;
  align-items: start;
}

.rates-workspace {
  grid-template-columns: minmax(0, 1fr);
}

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

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 12px;
}

.section-head:not(:first-child) {
  margin-top: 22px;
}

.section-head h2 {
  margin: 0;
  font-size: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.filter-reset-field {
  display: flex;
  align-items: end;
  grid-column: 4;
}

.filter-reset-field button {
  width: 100%;
}

.field {
  display: grid;
  gap: 6px;
}

.field-wide {
  margin-bottom: 10px;
}

.grid .field-wide {
  grid-column: span 2;
  margin-bottom: 0;
}

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

.check-field {
  align-content: start;
  border: 1px solid var(--line);
  border-radius: 6px;
  margin: 0;
  min-height: 42px;
  padding: 8px 10px;
}

.check-field legend {
  color: var(--muted);
  font-size: 13px;
  padding: 0 4px;
}

.check-field-compact {
  padding-bottom: 6px;
}

.check-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 10px;
}

.check-list label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text);
  font-size: 12px;
  line-height: 1.2;
}

.check-list input {
  width: 14px;
  min-height: 14px;
  height: 14px;
  margin: 0;
}

.model-count {
  min-height: 20px;
  margin: -2px 0 10px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 8px 10px;
}

input,
select {
  min-height: 42px;
}

textarea {
  min-height: 260px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 2px solid rgba(15, 118, 110, 0.28);
  outline-offset: 2px;
}

.search-results {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
}

.form-divider {
  border-top: 2px solid var(--line);
  margin: 20px 0 18px;
}

.brand-list a.active {
  background: #e7f5f2;
  color: var(--accent-dark);
  font-weight: 650;
}

.brand-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px 10px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
  margin-bottom: 12px;
}

.brand-list:empty,
.model-list:empty {
  display: none;
}

.brand-list a {
  display: block;
  align-items: center;
  min-height: 24px;
  border-radius: 4px;
  color: var(--accent-dark);
  font-size: 12px;
  line-height: 1.25;
  padding: 4px 6px;
  text-decoration: none;
}

.brand-list a:hover {
  background: #eef8f6;
  text-decoration: underline;
}

.brand-list span {
  overflow-wrap: anywhere;
}

.model-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 6px;
  margin-bottom: 12px;
}

.model-list button {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  column-gap: 8px;
  min-height: 54px;
  padding: 7px 9px;
  text-align: left;
}

.model-list button.with-thumbnail {
  grid-template-columns: auto minmax(0, 1fr);
}

.model-list img {
  width: 60px;
  height: 45px;
  object-fit: contain;
  align-self: center;
}

.model-list button > span {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.model-list button.active {
  border-color: var(--accent);
  background: #e7f5f2;
  color: var(--accent-dark);
}

.model-list strong,
.model-list small {
  overflow-wrap: anywhere;
}

.model-list strong {
  font-size: 13px;
}

.model-list small {
  color: var(--muted);
  font-size: 11px;
}

.search-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 7px;
  align-items: center;
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfe;
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
}

.vehicle-year-group {
  display: grid;
  gap: 6px;
}

.vehicle-year-group h3 {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.vehicle-year-items {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.search-item strong,
.search-item span,
.search-item small {
  overflow-wrap: anywhere;
}

.search-item strong {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
}

.search-item em {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  border: 1px solid #b7d7d1;
  border-radius: 999px;
  background: #eef8f6;
  color: var(--accent-dark);
  padding: 2px 7px;
  font-size: 11px;
  font-style: normal;
  font-weight: 650;
}

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

.search-item small {
  color: #475569;
  font-size: 12px;
}

.search-item .vehicle-extra {
  color: #334155;
}

.vehicle-source {
  justify-self: start;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 650;
  text-decoration: none;
}

.vehicle-source:hover {
  text-decoration: underline;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: 6px;
  color: var(--muted);
  padding: 12px;
  text-align: center;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 18px;
}

.actions.left {
  justify-content: flex-start;
}

.nav-link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 8px 14px;
  text-decoration: none;
}

.admin-workspace {
  grid-template-columns: minmax(360px, 0.8fr) minmax(0, 1.2fr);
}

.rulesets {
  display: grid;
  gap: 8px;
}

.ruleset-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px;
}

.ruleset-row strong {
  overflow-wrap: anywhere;
}

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

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 8px 14px;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.72;
}

button:hover {
  border-color: #b8c2cf;
}

.icon-button {
  width: 44px;
  padding: 0;
  font-size: 22px;
}

.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.primary.is-stale {
  border-color: var(--warn-text);
  background: var(--warn-text);
}

.primary:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.primary.is-stale:hover {
  border-color: #7c2d12;
  background: #7c2d12;
}

.result-panel.is-stale .totals,
.result-panel.is-stale .explain {
  opacity: 0.58;
}

.warnings {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}

.warning {
  border: 1px solid var(--warn-line);
  border-radius: 6px;
  background: var(--warn-bg);
  color: var(--warn-text);
  padding: 8px 10px;
  font-size: 13px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 650;
}

.rate-status {
  min-height: 22px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.totals,
.explain dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.totals div,
.explain dl div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
  padding: 8px 0;
}

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

dd {
  margin: 0;
  font-weight: 650;
  text-align: right;
}

.sum dt,
.sum dd {
  color: var(--text);
  font-size: 17px;
}

.explain {
  margin-top: 18px;
}

.explain h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.details-grid {
  display: grid;
  gap: 10px;
}

.detail-card {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
}

.detail-card h3 {
  margin: 0 0 8px;
  font-size: 14px;
}

.detail-card dl {
  display: grid;
  gap: 6px;
  margin: 0;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 6px 0;
}

.detail-row:last-child {
  border-bottom: 0;
}

pre {
  max-height: 260px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f8fafc;
  padding: 10px;
  color: #334155;
  font-size: 12px;
  white-space: pre-wrap;
}

@media (max-width: 980px) {
  .shell {
    padding: 14px;
  }

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

  .admin-workspace {
    grid-template-columns: 1fr;
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .filter-reset-field {
    grid-column: 2;
  }

  .brand-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .topbar h1 {
    font-size: 24px;
  }

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

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

  .filter-reset-field {
    grid-column: auto;
  }

  .vehicle-year-items {
    grid-template-columns: 1fr;
  }

  .brand-list {
    grid-template-columns: 1fr;
  }

  .panel,
  .result-panel {
    padding: 14px;
  }

  .actions {
    justify-content: stretch;
  }

  .actions button {
    flex: 1 1 150px;
  }

  .ruleset-row {
    grid-template-columns: 1fr;
  }
}