/* Hallmark · macrostructure: Workbench · genre: modern-minimal · tone: technical-austere · theme: Cobalt · anchor hue: cobalt · enrichment: none · nav: N9 · footer: Ft2 · contrast: pass (40–41) · slop: pass (42–49) · mobile: pass (34, 49, 50–57) */
/* Hallmark · pre-emit critique: P5 H5 E4 S5 R5 V4 */
@import url('/tokens.css');

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; overflow-x: clip; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-paper);
  color: var(--color-body);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  padding-bottom: max(var(--space-md), env(safe-area-inset-bottom));
}
button, input, select { font: inherit; }
button, select, input, summary { color: inherit; }
a { color: inherit; }
h1, h2, h3, p, dl, dd { margin: 0; }
h1, h2, h3 {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  line-height: 1.08;
  overflow-wrap: anywhere;
  min-width: 0;
}
h1 { font-size: var(--text-display); font-weight: 700; letter-spacing: -0.045em; max-width: 13ch; }
h2 { font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.025em; }
button, summary, a { -webkit-tap-highlight-color: transparent; }
button { border: 0; }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
[hidden] { display: none !important; }

.page-shell { width: min(100%, var(--page-max)); margin-inline: auto; padding-inline: var(--page-gutter); }
.nav-edge {
  align-items: center;
  border-bottom: var(--rule-thin) solid var(--color-rule);
  display: flex;
  justify-content: space-between;
  min-height: 4rem;
  padding-inline: var(--page-gutter);
}
.wordmark {
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-md);
  font-weight: 600;
  letter-spacing: -0.04em;
  text-decoration: none;
  white-space: nowrap;
}
.wordmark:active { transform: translateY(1px); }
.wordmark span { color: var(--color-accent); }
.nav-actions { align-items: center; display: flex; gap: var(--space-md); }
.strategy-switch { color: var(--color-accent); font-family: var(--font-mono); font-size: var(--text-sm); text-decoration: none; white-space: nowrap; }
.nav-status { align-items: center; display: flex; font-family: var(--font-mono); font-size: var(--text-sm); gap: var(--space-xs); line-height: 1; white-space: nowrap; }
.nav-status i { background: var(--color-success); border-radius: 50%; display: block; height: var(--space-xs); width: var(--space-xs); }

.intro { display: grid; gap: var(--space-xl); padding-block: var(--space-2xl) var(--space-3xl); }
.signal-line { color: var(--color-accent); font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.08em; margin-bottom: var(--space-md); text-transform: uppercase; }
.intro-copy { align-self: end; display: grid; gap: var(--space-xl); max-width: 65ch; }
.intro-copy > p { font-size: var(--text-md); line-height: 1.5; }
.scope-line { border-block: var(--rule-thin) solid var(--color-rule); display: grid; grid-template-columns: minmax(0, 1fr); }
.scope-line div { display: grid; gap: var(--space-2xs); padding-block: var(--space-sm); }
.scope-line div + div { border-top: var(--rule-thin) solid var(--color-rule); }
.scope-line dt, .scope-line dd { font-family: var(--font-mono); font-size: var(--text-sm); }
.scope-line dt { color: var(--color-muted); }
.scope-line dd { color: var(--color-ink); }

.workbench { padding-bottom: var(--space-3xl); }
.section-heading { align-items: end; display: grid; gap: var(--space-sm); margin-bottom: var(--space-lg); }
.section-heading p { max-width: 58ch; }
#backtest-form { border-block: var(--rule-thin) solid var(--color-rule-2); }
.primary-controls { display: grid; gap: var(--space-md); padding-block: var(--space-lg); }
.field { display: grid; gap: var(--space-xs); min-width: 0; }
.field > span, .parameter-grid label > span { color: var(--color-ink); font-size: var(--text-sm); font-weight: 600; }
.field small { color: var(--color-muted); font-size: var(--text-sm); min-height: 1lh; }
input, select {
  background: var(--color-paper);
  border: var(--rule-thin) solid var(--color-rule-2);
  border-radius: var(--radius-control);
  height: var(--control-height);
  min-width: 0;
  outline: 2px solid transparent;
  outline-offset: 1px;
  padding-inline: var(--space-sm);
}
input:focus-visible, select:focus-visible { border-color: var(--color-ink); outline-color: var(--color-focus); }
input:disabled, select:disabled { cursor: not-allowed; opacity: 0.55; }
input[aria-invalid="true"], select[aria-invalid="true"] { border-color: var(--color-error); }
input[data-state="success"], select[data-state="success"] { border-color: var(--color-success); }
.run-button {
  align-self: end;
  align-items: center;
  background: var(--color-accent);
  border-radius: var(--radius-control);
  color: var(--color-accent-ink);
  cursor: pointer;
  display: flex;
  font-weight: 600;
  gap: var(--space-xs);
  height: var(--control-height);
  justify-content: center;
  line-height: 1;
  padding-inline: var(--space-lg);
  transition: background-color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
  white-space: nowrap;
}
.run-button:active { transform: translateY(1px); }
.run-button:disabled { cursor: not-allowed; opacity: 0.55; }
.button-spinner { border: 2px solid var(--color-paper-3); border-top-color: var(--color-accent-ink); border-radius: 50%; display: none; height: var(--space-md); width: var(--space-md); }
.run-button[data-state="loading"] .button-spinner { animation: spin 1s linear infinite; display: block; }
.run-button[data-state="error"] { background: var(--color-error); }
.run-button[data-state="success"] { background: var(--color-success); }
@keyframes spin { to { transform: rotate(1turn); } }

.symbols-fieldset { border: 0; border-top: var(--rule-thin) solid var(--color-rule); margin: 0; padding: var(--space-lg) 0; }
.symbols-fieldset legend { color: var(--color-ink); font-family: var(--font-display); font-size: var(--text-lg); font-weight: 700; padding: 0; }
.fieldset-actions { align-items: center; display: flex; justify-content: space-between; margin-block: var(--space-sm); }
.fieldset-actions span { color: var(--color-muted); font-family: var(--font-mono); font-size: var(--text-sm); }
.fieldset-actions span.negative { color: var(--color-error); }
.text-button {
  background: transparent;
  color: var(--color-accent);
  cursor: pointer;
  min-height: 2.75rem;
  line-height: 1;
  padding-inline: 0;
  text-decoration: underline;
  text-decoration-thickness: var(--rule-thin);
  text-underline-offset: var(--space-2xs);
  white-space: nowrap;
}
.text-button:active { transform: translateY(1px); }
.text-button:disabled { cursor: not-allowed; opacity: 0.55; }
.symbol-grid { border-top: var(--rule-thin) solid var(--color-rule); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.symbol-option {
  align-items: center;
  border-bottom: var(--rule-thin) solid var(--color-rule);
  cursor: pointer;
  display: flex;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  gap: var(--space-xs);
  min-height: 2.75rem;
}
.symbol-option input { accent-color: var(--color-accent); height: var(--space-md); width: var(--space-md); }
.symbol-option:has(input:disabled) { cursor: not-allowed; opacity: 0.55; }
.run-row { display: flex; justify-content: flex-end; padding-bottom: var(--space-lg); }
.run-row .run-button { width: 100%; }
.parameters { border-top: var(--rule-thin) solid var(--color-rule); }
.parameters summary { cursor: pointer; font-weight: 600; min-height: 3.5rem; padding-block: var(--space-md); }
.parameters summary:active { transform: translateY(1px); }
.parameter-grid { display: grid; gap: var(--space-md); padding-bottom: var(--space-lg); }
.parameter-grid label { display: grid; gap: var(--space-xs); }
.parameter-grid.parameter-table-mode { display: block; }
.parameter-table-mode .portfolio-capital { margin-bottom: var(--space-lg); max-width: 20rem; }
.parameter-table-wrap { overflow-x: auto; }
.parameter-table, .parameter-table thead, .parameter-table tbody, .parameter-table tr, .parameter-table th, .parameter-table td { display: revert; }
.parameter-table { font-size: var(--text-sm); min-width: 76rem; width: 100%; }
.parameter-table thead { display: table-header-group; }
.parameter-table tbody { display: table-row-group; }
.parameter-table tr { border: 0; display: table-row; padding: 0; }
.parameter-table th, .parameter-table td { border-bottom: var(--rule-thin) solid var(--color-rule); display: table-cell; padding: var(--space-xs); text-align: start; }
.parameter-table th { background: var(--color-paper); white-space: nowrap; }
.parameter-table th:first-child { background: var(--color-paper); left: 0; position: sticky; z-index: 1; }
.parameter-table thead th:first-child { z-index: 2; }
.parameter-table td { font-family: var(--font-mono); }
.parameter-table td::before { display: none; }
.parameter-table input[type="number"] { height: 2.5rem; min-width: 6rem; width: 100%; }
.margin-reference { font-variant-numeric: tabular-nums; white-space: nowrap; }
.parameter-grid .parameter-token { align-items: center; display: flex; gap: var(--space-xs); }
.parameter-token input { accent-color: var(--color-accent); height: var(--space-md); min-width: var(--space-md); width: var(--space-md); }
.form-error, .source-errors { border: var(--rule-thin) solid var(--color-error); color: var(--color-error); margin-bottom: var(--space-lg); padding: var(--space-sm); }

.job-strip { background: var(--color-paper-2); border-block: var(--rule-thin) solid var(--color-rule); }
.job-inner { display: grid; gap: var(--space-sm); padding-block: var(--space-lg); }
.job-inner > div { display: flex; gap: var(--space-sm); justify-content: space-between; }
.job-inner strong, .job-inner span { font-family: var(--font-mono); }
.job-inner p { color: var(--color-muted); font-size: var(--text-sm); }
progress { accent-color: var(--color-accent); height: var(--space-xs); width: 100%; }

.summary { padding-block: var(--space-3xl) var(--space-2xl); }
.results-heading { align-items: center; }
.metric-strip { border-block: var(--rule-thin) solid var(--color-rule-2); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.metric-strip div { border-bottom: var(--rule-thin) solid var(--color-rule); display: grid; gap: var(--space-xs); padding-block: var(--space-md); }
.metric-strip dt { color: var(--color-muted); font-size: var(--text-sm); }
.metric-strip dd { color: var(--color-ink); font-family: var(--font-mono); font-size: clamp(var(--text-md), 1.6vw, var(--text-lg)); font-variant-numeric: tabular-nums; line-height: 1.15; overflow-wrap: anywhere; }
.metric-strip dd.positive { color: var(--color-success); font-weight: 600; }
.metric-strip dd.negative { color: var(--color-error); }

.equity-stage { background: var(--color-graphite); color: var(--color-on-dark); }
.chart-inner { padding-block: var(--space-xl) var(--space-2xl); }
.chart-heading { align-items: end; display: flex; gap: var(--space-lg); justify-content: space-between; margin-bottom: var(--space-lg); }
.chart-heading span { color: var(--color-on-dark-muted); font-family: var(--font-mono); font-size: var(--text-sm); }
.chart-heading h2, .chart-heading p { color: var(--color-on-dark); }
.chart-heading p { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
#equity-chart { display: block; height: 18rem; width: 100%; }

.results-workbench { display: grid; gap: var(--space-3xl); padding-block: var(--space-3xl); }
.compact-heading { align-items: start; }
.table-wrap { overflow: visible; }
table, thead, tbody, tr, th, td { display: block; min-width: 0; }
table { border-collapse: collapse; font-size: var(--text-sm); width: 100%; }
thead { display: none; }
tr { border-bottom: var(--rule-thin) solid var(--color-rule-2); padding-block: var(--space-sm); }
th, td { border-bottom: var(--rule-thin) solid var(--color-rule); padding: var(--space-sm) var(--space-xs); text-align: end; }
th:first-child { padding-inline-start: 0; text-align: start; }
th { color: var(--color-muted); font-weight: 500; }
td { align-items: baseline; border: 0; color: var(--color-ink); display: flex; font-family: var(--font-mono); font-variant-numeric: tabular-nums; justify-content: space-between; padding: var(--space-2xs) 0; text-align: end; }
td::before { color: var(--color-muted); content: attr(data-label); font-family: var(--font-body); margin-inline-end: var(--space-md); text-align: start; }
td:first-child { align-items: center; text-align: start; }
.symbol-button { background: transparent; color: var(--color-accent); cursor: pointer; font-family: var(--font-mono); line-height: 1; min-height: 2.75rem; padding: 0; text-decoration: underline; text-underline-offset: var(--space-2xs); white-space: nowrap; }
.symbol-button:active { transform: translateY(1px); }
.symbol-button:disabled { cursor: not-allowed; opacity: 0.55; }
.positive { color: var(--color-success); font-weight: 600; }
.negative { color: var(--color-error); }
.method { border-top: var(--rule-thin) solid var(--color-rule-2); display: grid; gap: var(--space-lg); padding-block: var(--space-2xl); }
.method ul { display: grid; gap: var(--space-sm); margin: 0; max-width: 75ch; padding-inline-start: var(--space-lg); }
.method p { max-width: 75ch; }
.foot-line { border-top: var(--rule-thin) solid var(--color-rule); color: var(--color-muted); font-family: var(--font-mono); font-size: var(--text-sm); padding-block: var(--space-lg); }

@media (hover: hover) and (pointer: fine) {
  input:hover, select:hover { background: var(--color-paper-2); }
  .run-button:hover { background: var(--color-focus); transform: translateY(-1px); }
  .text-button:hover, .symbol-button:hover { text-decoration-thickness: 2px; }
  .symbol-option:hover { background: var(--color-paper-2); }
  .parameters summary:hover { color: var(--color-accent); }
}

@media (min-width: 40rem) {
  .intro { grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); padding-block: var(--space-2xl) var(--space-3xl); }
  .section-heading { grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.7fr); }
  .results-heading { grid-template-columns: minmax(0, 1fr) auto; }
  .primary-controls { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .run-row .run-button { width: auto; }
  .symbol-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .parameter-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .metric-strip { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .metric-strip div { border-bottom: 0; }
  .metric-strip div:nth-child(-n + 4) { border-bottom: var(--rule-thin) solid var(--color-rule); }
  .metric-strip div + div { border-inline-start: var(--rule-thin) solid var(--color-rule); padding-inline-start: var(--space-md); }
  .metric-strip div:nth-child(4n + 1) { border-inline-start: 0; padding-inline-start: 0; }
  .table-wrap { overflow-x: auto; }
  table { display: table; min-width: 46rem; }
  thead { display: table-header-group; }
  tbody { display: table-row-group; }
  tr { border: 0; display: table-row; padding: 0; }
  th, td { border-bottom: var(--rule-thin) solid var(--color-rule); display: table-cell; padding: var(--space-sm) var(--space-xs); }
  td::before { display: none; }
  td:first-child { padding-inline-start: 0; }
}

@media (min-width: 60rem) {
  .scope-line { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .scope-line div + div { border-top: 0; }
  .primary-controls { grid-template-columns: 1.35fr 0.8fr 0.8fr; }
  .symbol-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .parameter-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .compact-heading { grid-template-columns: 1fr; }
}

.nav-status { font-size: var(--text-xs); }
.intro-copy > p { font-size: var(--text-base); }
.chart-heading { align-items: start; flex-direction: column; gap: var(--space-xs); }

@media (min-width: 40rem) {
  .nav-status { font-size: var(--text-sm); }
  .intro-copy > p { font-size: var(--text-md); }
  .chart-heading { align-items: end; flex-direction: row; gap: var(--space-lg); }
}

@media (pointer: coarse) {
  button, .symbol-option, input, select, summary { min-height: 2.75rem; }
}

@media (max-width: 32rem) {
  .nav-status { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 150ms !important; animation-iteration-count: 1 !important; transition-duration: 150ms !important; }
}