:root {
  color-scheme: light;
  --bg: #f4f7f6;
  --ink: #16211f;
  --muted: #65726f;
  --line: #d6dfdc;
  --panel: #ffffff;
  --panel-soft: #eef4f2;
  --teal: #0f766e;
  --green: #26834f;
  --gold: #b7791f;
  --red: #b42318;
  --shadow: 0 8px 24px rgba(22, 33, 31, 0.045);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
  line-height: 1.35;
}

[hidden] {
  display: none !important;
}

body.auth-locked {
  overflow: hidden;
}

.auth-locked .shell {
  display: none;
}

.access-gate {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 18% 18%, rgba(15, 118, 110, 0.1), transparent 32%),
    radial-gradient(circle at 82% 78%, rgba(38, 131, 79, 0.08), transparent 30%),
    var(--bg);
}

.access-card {
  width: min(100%, 368px);
}

.access-card input {
  height: 50px;
  min-height: 50px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--ink);
  background: var(--panel);
  box-shadow: 0 14px 38px rgba(22, 33, 31, 0.11);
  font-variant-numeric: tabular-nums;
}

.access-card input:focus {
  border-color: var(--teal);
  outline: 3px solid rgba(15, 118, 110, 0.14);
}

.access-card input[aria-invalid="true"] {
  border-color: var(--red);
  outline-color: rgba(180, 35, 24, 0.14);
}

.access-card.access-denied {
  animation: access-shake 260ms ease-in-out;
}

@keyframes access-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-7px); }
  75% { transform: translateX(7px); }
}

button,
input {
  font: inherit;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.shell {
  min-height: 100vh;
  padding: 24px;
}

.workspace {
  max-width: 1280px;
  margin: 0 auto;
}

.topbar,
.panel,
.metrics article {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 24px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.topbar-actions .refresh-button {
  min-height: 44px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 30px;
  line-height: 1.12;
}

h2 {
  font-size: 16px;
}

.status {
  display: grid;
  gap: 4px;
  min-width: 210px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.status span:first-child {
  font-size: 18px;
  font-weight: 800;
}

.status span:last-child,
.panel-heading span,
.preset-list dd,
.metrics span,
.result-list dt,
.scenario-heading p,
.impact-panel .panel-heading p,
.market-strip span,
.scenario-name span,
.scenario-note,
.formula-panel p {
  color: var(--muted);
}

.controls {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.panel {
  padding: 20px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.segmented {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.segmented button {
  min-width: 62px;
  min-height: 36px;
  border: 0;
  background: #fff;
  color: var(--muted);
  cursor: pointer;
}

.segmented button.active {
  background: var(--teal);
  color: #fff;
  font-weight: 800;
}

.refresh-button {
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  transition: background 150ms ease, transform 150ms ease;
}

.refresh-button:hover:not(:disabled) {
  background: var(--teal);
  transform: translateY(-1px);
}

.preset-list,
.result-list {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) minmax(0, 1.5fr);
  gap: 10px 14px;
  margin: 0;
}

.preset-list {
  grid-template-columns: 124px minmax(0, 1fr);
}

.preset-list dt,
.result-list dd {
  font-weight: 750;
  overflow-wrap: anywhere;
}

.preset-list dd,
.result-list dt,
.result-list dd {
  margin: 0;
}

.preset-list dd {
  min-width: 0;
}

.preset-list dd.id-value {
  overflow: hidden;
  color: #52625f;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scenario-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 18px;
}

.scenario-heading {
  align-items: flex-start;
  margin-bottom: 0;
}

.scenario-heading p,
.impact-panel .panel-heading p {
  margin-top: 5px;
  font-size: 13px;
}

.market-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.market-strip div {
  display: grid;
  min-width: 0;
  gap: 5px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.market-strip span {
  font-size: 12px;
  font-weight: 700;
}

.market-strip strong {
  overflow: hidden;
  font-size: 16px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scenario-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.scenario-row {
  display: grid;
  grid-template-columns: minmax(120px, 1.1fr) minmax(95px, 0.8fr) minmax(112px, 0.9fr) repeat(2, minmax(86px, 0.7fr)) minmax(135px, 1.05fr) minmax(145px, 1.1fr);
  align-items: stretch;
}

.scenario-row + .scenario-row {
  border-top: 1px solid var(--line);
}

.scenario-row > * {
  min-width: 0;
  padding: 12px;
}

.scenario-header {
  background: var(--panel-soft);
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.current-scenario {
  background: #fff;
}

.hypothetical-scenario {
  background: rgba(15, 118, 110, 0.055);
  box-shadow: inset 4px 0 0 var(--teal);
}

.hypothetical-scenario.scenario-two {
  background: rgba(71, 85, 105, 0.05);
  box-shadow: inset 4px 0 0 #64748b;
}

.scenario-name {
  display: grid;
  align-content: center;
  gap: 3px;
}

.scenario-name strong {
  font-size: 14px;
}

.scenario-name span {
  font-size: 11px;
}

.scenario-cell {
  display: flex;
  align-items: center;
  overflow-wrap: anywhere;
  font-size: 13px;
  font-weight: 750;
}

.muted-cell {
  color: var(--muted);
  font-weight: 600;
}

.scenario-input-field {
  display: flex;
  align-items: center;
  padding: 8px;
}

input {
  width: 100%;
  height: 44px;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--ink);
  background: #fff;
}

input[type="hidden"] {
  display: none;
}

.scenario-input-field input {
  height: 40px;
  min-height: 40px;
  border-color: rgba(15, 118, 110, 0.45);
  padding: 6px 7px;
  font-size: 13px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  appearance: textfield;
}

.scenario-input-field input::-webkit-inner-spin-button,
.scenario-input-field input::-webkit-outer-spin-button {
  margin: 0;
  appearance: none;
}

input:focus {
  border-color: var(--teal);
  outline: 2px solid rgba(15, 118, 110, 0.18);
}

.scenario-note {
  margin: -2px 0 0;
  font-size: 12px;
  line-height: 1.45;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.metrics article {
  display: grid;
  gap: 8px;
  min-height: 96px;
  padding: 18px;
}

.metrics strong {
  font-size: clamp(21px, 2vw, 25px);
  line-height: 1;
  overflow-wrap: anywhere;
}

.metrics strong.positive,
.result-list dd.positive {
  color: var(--green);
}

.metrics strong.negative,
.result-list dd.negative {
  color: var(--red);
}

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

.impact-panel {
  margin-top: 16px;
}

.impact-panel .panel-heading {
  align-items: flex-start;
}

.result-list {
  grid-template-columns: minmax(170px, 1fr) minmax(0, 1fr) minmax(170px, 1fr) minmax(0, 1fr);
  column-gap: 20px;
}

.formula-traces {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 16px;
  margin-top: 16px;
}

.formula-panel {
  min-width: 0;
  padding: 18px;
}

.formula-panel.trace-one {
  border-top: 3px solid var(--teal);
}

.formula-panel.trace-two {
  border-top: 3px solid #64748b;
}

.formula-panel .panel-heading {
  align-items: flex-start;
  margin-bottom: 8px;
}

.formula-panel .panel-heading span {
  flex: 0 0 auto;
  font-size: 12px;
}

.formula-panel p {
  min-height: 38px;
  margin-bottom: 14px;
  font-size: 12px;
  line-height: 1.45;
}

.formula-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 22px;
  font-size: 12px;
  line-height: 1.45;
}

.formula-list li {
  min-width: 0;
  padding-left: 3px;
  overflow-wrap: anywhere;
}

.formula-list code {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  white-space: normal;
}

.formula-list .trace-total,
.formula-list .trace-marginal {
  margin: 2px 0;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px 10px;
  background: var(--panel-soft);
  font-weight: 800;
  list-style-position: inside;
}

.formula-list .trace-total.positive code,
.formula-list .trace-marginal.positive code {
  color: var(--green);
}

.formula-list .trace-total.negative code,
.formula-list .trace-marginal.negative code {
  color: var(--red);
}

@media (max-width: 1080px) {
  .controls,
  .formula-traces {
    grid-template-columns: 1fr;
  }

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

  .scenario-row {
    grid-template-columns: minmax(120px, 1fr) repeat(4, minmax(90px, 0.75fr)) repeat(2, minmax(135px, 1.05fr));
  }

  .result-list {
    grid-template-columns: minmax(170px, 1fr) minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .access-gate {
    padding: 16px;
  }

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

  .scenario-table {
    border: 0;
    overflow: visible;
  }

  .scenario-header {
    display: none;
  }

  .scenario-row:not(.scenario-header) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
  }

  .scenario-row + .scenario-row {
    margin-top: 10px;
  }

  .scenario-name {
    grid-column: 1 / -1;
    border-bottom: 1px solid var(--line);
  }

  .scenario-cell,
  .scenario-input-field {
    display: grid;
    align-content: start;
    gap: 6px;
  }

  .scenario-cell::before,
  .scenario-input-field::before {
    content: attr(data-label);
    color: var(--muted);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.035em;
    text-transform: uppercase;
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 12px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions {
    align-items: stretch;
    flex-direction: column;
    margin-left: 0;
    width: 100%;
  }

  .status {
    width: 100%;
  }

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

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

  .scenario-row:not(.scenario-header) {
    grid-template-columns: 1fr;
  }

  .scenario-name {
    grid-column: auto;
  }

  h1 {
    font-size: 24px;
  }
}