:root {
  --brand-blue: hsl(var(--brand-blue-hsl, 216.85, 54.04%, 46.08%));
  --brand-cream: hsl(var(--brand-cream-hsl, 37.67, 84%, 90%));
  --brand-light-blue: hsl(var(--brand-light-blue-hsl, 216.85, 54.04%, 94%));

  --bg: #0f2b57;
  --panel: #fffdf8;
  --ink: #1d2940;
  --muted: #4f617d;
  --line: #cdd8ea;
  --accent: var(--brand-blue);
  --compare-accent: #c62828;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body-font-font-family, "Crimson Text"), Georgia, serif;
}

.app-shell {
  width: 100%;
  padding: 1.25rem;
  display: grid;
  gap: 1rem;
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  color: #f3f7ff;
}

.asi-logo {
  width: 132px;
  max-width: 30vw;
  height: auto;
  flex: 0 0 auto;
}

.main-layout {
  display: grid;
  grid-template-columns: minmax(180px, clamp(180px, 24vw, 240px)) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  min-width: 0;
}

.left-col {
  position: sticky;
  top: 1rem;
  min-width: 0;
}

.right-col {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

h1,
h2,
h3 {
  margin: 0 0 0.5rem;
  font-family: var(--heading-font-font-family, "Josefin Sans"), "Trebuchet MS", sans-serif;
  font-weight: var(--heading-font-font-weight, 400);
}

.subtitle {
  color: var(--muted);
  margin: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  min-width: 0;
}

.control-grid,
.chart-grid {
  display: grid;
  gap: 0.55rem;
}

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

.control-grid label {
  display: grid;
  gap: 0.25rem;
  font-size: 0.9rem;
}

.field-label-row span {
  font-size: 0.9rem;
}


.field-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem;
}

.field-label-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
}

.control-subtitle {
  margin: 0.1rem 0 0.05rem;
  color: var(--muted);
  font-size: 0.8rem;
  font-style: italic;
}

.control-error {
  margin: 0.1rem 0 0;
  color: #8a1f2f;
  font-size: 0.86rem;
  font-weight: 600;
}

.control-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.reset-all-btn {
  margin-bottom: 0;
}

.pct-input {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
}

.pct-input input {
  padding-right: 1.4rem;
}

.pct-input span {
  position: absolute;
  right: 0.45rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.gbp-input {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
}

.gbp-input input {
  padding-left: 1.3rem;
}

.gbp-input span {
  position: absolute;
  left: 0.45rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.27rem 0.45rem;
  font: inherit;
  color: var(--ink);
  background: #ffffff;
}

select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.27rem 0.45rem;
  font: inherit;
  color: var(--ink);
  background: #ffffff;
}

input:disabled,
select:disabled,
button:disabled {
  opacity: 0.6;
  background: #f4f6fa;
}

.reset-all-btn {
  border: 1px solid #bfd0ea;
  border-radius: 999px;
  padding: 0.22rem 0.58rem;
  font: inherit;
  font-size: 0.83rem;
  line-height: 1.2;
  color: #2d4f82;
  background: #f2f7ff;
  cursor: pointer;
  white-space: nowrap;
  flex: 0 0 auto;
}

.reset-all-btn:hover {
  background: #e7f1ff;
  border-color: #a9c0e3;
}

.reset-link {
  border: 0;
  background: transparent;
  color: #2d4f82;
  font: inherit;
  font-size: 0.8rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 0;
  cursor: pointer;
  line-height: 1;
}

.reset-link:hover {
  color: #1f3c66;
}

.balance-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.preset-toggle {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.35rem;
}

.preset-toggle button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.22rem 0.58rem;
  font: inherit;
  font-size: 0.82rem;
  color: var(--muted);
  background: #ffffff;
  cursor: pointer;
  text-align: center;
}

.preset-toggle button.active {
  border-color: #9db7de;
  color: #1f3c66;
  background: #e9f2ff;
  font-weight: 600;
}

@media (max-width: 800px) {
  .app-header {
    flex-direction: column;
  }

  .asi-logo {
    width: 120px;
    max-width: 45vw;
  }
}

.balance-toggle button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.22rem 0.58rem;
  font: inherit;
  font-size: 0.82rem;
  color: var(--muted);
  background: #ffffff;
  cursor: pointer;
}

.balance-toggle button.active {
  border-color: #9db7de;
  color: #1f3c66;
  background: #e9f2ff;
  font-weight: 600;
}

.compare-card-grid {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(200px, 100%), 1fr));
  gap: 0.8rem;
}

.face-value-line {
  margin: 0.1rem 0 0.6rem;
}

.compare-card-grid article {
  background: #fff6f3;
  border: 1px solid #f0d1c8;
  border-radius: 8px;
  padding: 0.75rem;
}

.compare-card-grid p {
  margin: 0.15rem 0;
}

.delta-row {
  color: #8b1d12;
  font-weight: 700;
}

.valuation-table-wrap {
  margin-top: 0.75rem;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.valuation-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: #fff;
}

.valuation-table th,
.valuation-table td {
  border-bottom: 1px solid #dde5f2;
  padding: 0.5rem 0.6rem;
  white-space: normal;
}

.valuation-table th {
  text-align: left;
  background: #f3f8ff;
}

.valuation-table td:nth-child(3),
.valuation-table td:nth-child(4),
.valuation-table td:nth-child(5) {
  text-align: right;
}

.valuation-table td:nth-child(1),
.valuation-table td:nth-child(2) {
  text-align: left;
}

.chart-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
}

.chart-row {
  display: grid;
  gap: 0.75rem;
}

.chart-row + .chart-row {
  margin-top: 0.9rem;
}

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

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

.chart {
  min-height: 300px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
}

.chart-panel {
  min-width: 0;
}

.chart-frame {
  position: relative;
}

.chart-legend-overlay {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
  padding: 0.38rem 0.5rem;
  border-radius: 6px;
  border: 1px solid #dde5f2;
  background: rgba(255, 255, 255, 0.93);
  font-size: 0.72rem;
  line-height: 1.1;
  color: #30425e;
  pointer-events: none;
}

.chart-legend-overlay.chart-legend-bottom {
  top: auto;
  bottom: 0.5rem;
}

.chart-legend-overlay.chart-legend-inline {
  position: static;
  top: auto;
  right: auto;
  bottom: auto;
  margin-top: 0.5rem;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.35rem 0.6rem;
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  pointer-events: auto;
}

.chart-legend-overlay span {
  display: inline-flex;
  align-items: center;
  gap: 0.34rem;
  white-space: nowrap;
}

.legend-swatch,
.legend-line,
.legend-area {
  display: inline-block;
  flex: 0 0 auto;
}

.legend-swatch {
  width: 0.72rem;
  height: 0.5rem;
  border-radius: 2px;
}

.legend-line {
  width: 0.95rem;
  height: 0;
  border-top: 2px solid #000;
}

.legend-line-dashed {
  border-top-style: dashed;
}

.legend-area {
  width: 0.72rem;
  height: 0.52rem;
  border-radius: 2px;
  background: #f4b183;
}

.legend-borrowing {
  background: #0072b2;
}

.legend-interest {
  background: #e69f00;
}

.legend-repayment {
  background: #009e73;
}

.legend-changed {
  border-top-color: var(--accent);
}

.legend-status-quo {
  border-top-color: var(--compare-accent);
}

.legend-share-changed {
  border-top-color: #b04a00;
}

.legend-share-status-quo {
  border-top-color: #5a5a5a;
}

.legend-lower-threshold {
  border-top-color: #1f4f99;
}

.legend-upper-threshold {
  border-top-color: #6e6e6e;
}

.legend-income-after-repayment {
  background: #f4b183;
}

.table-wrap {
  overflow: auto;
  max-height: 420px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th,
td {
  text-align: right;
  border-bottom: 1px solid #dde5f2;
  padding: 0.35rem 0.45rem;
  white-space: normal;
}

.yearly-model-table thead tr:first-child th:nth-child(1),
.yearly-model-table thead tr:first-child th:nth-child(2),
.yearly-model-table thead tr:first-child th:nth-child(3),
.yearly-model-table thead tr:first-child th:nth-child(4),
.yearly-model-table tbody td:nth-child(1),
.yearly-model-table tbody td:nth-child(2),
.yearly-model-table tbody td:nth-child(3) {
  text-align: left;
}

.yearly-model-table thead th {
  background: #f3f8ff;
  vertical-align: middle;
  font-weight: 600;
  position: sticky;
  z-index: 2;
}

.yearly-model-table thead tr:first-child th {
  top: 0;
}

.yearly-model-table thead tr:first-child th[colspan] {
  text-align: center;
}

.yearly-model-table thead tr:nth-child(2) th {
  top: 2.15rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  border-top: 1px solid #dde5f2;
  white-space: nowrap;
}

.model-note-col {
  text-align: left;
}

@media (max-width: 1080px) {
  .main-layout {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: 0.8rem;
  }

  .left-col {
    top: 0.8rem;
  }

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

@media (max-width: 980px) {
  .main-layout {
    grid-template-columns: 1fr;
  }

  .left-col {
    position: static;
  }

  .chart-row-two-up {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: 0.8rem;
  }

  .chart {
    min-height: 260px;
  }
}

.disclaimer {
  font-size: 0.75rem;
  color: white;
  margin: 0;
}
header a {
  color: var(--brand-cream-hsl);}