/* ================================================================
   AACE class guides + accuracy range calculator (aace/class-*.html,
   aace/accuracy-range-calculator.html). Loads after styles.css.

   Same token rules as project-cards.css: own --at-* tokens on :root
   (never var(--text-body) for colour, never var(--space-7)); light
   teal text is #086a5f, bright #2bcbba only in dark theme.
   ================================================================ */
:root {
  --at-bg: #ffffff;
  --at-panel: #f7faf9;
  --at-rule: #e3e8e6;
  --at-rule-strong: #cfd8d5;
  --at-title: #0a0a0a;
  --at-text: #4a4f4d;
  --at-muted: #5f6664;
  --at-accent: #086a5f;
  --at-accent-soft: rgba(8, 106, 95, 0.08);
  --at-warn: #9a3412;
  --at-band: #2bcbba;
  --at-band-wide: rgba(43, 203, 186, 0.22);
}
[data-theme="dark"] {
  --at-bg: #141414;
  --at-panel: #111413;
  --at-rule: #262626;
  --at-rule-strong: #3a3a3a;
  --at-title: #ffffff;
  --at-text: #c2c7c5;
  --at-muted: #8f9694;
  --at-accent: #2bcbba;
  --at-accent-soft: rgba(43, 203, 186, 0.12);
  --at-warn: #fdba74;
  --at-band-wide: rgba(43, 203, 186, 0.25);
}

.aace-updated {
  margin-top: 12px;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  opacity: 0.75;
}

/* ---------------------------------------------------------------- class switcher */
.aace-switch {
  border-bottom: 1px solid var(--at-rule);
  background: var(--at-bg);
}
.aace-switch__row {
  display: flex;
  gap: 8px;
  padding-block: 14px;
  overflow-x: auto;
  scrollbar-width: none;
}
.aace-switch__row::-webkit-scrollbar { display: none; }
.aace-switch__pill {
  flex: 0 0 auto;
  padding: 9px 16px;
  border: 1px solid var(--at-rule-strong);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--at-text);
  text-decoration: none;
  white-space: nowrap;
}
a.aace-switch__pill:hover { border-color: var(--at-accent); color: var(--at-title); }
.aace-switch__pill.is-current { background: var(--at-accent-soft); border-color: var(--at-accent); color: var(--at-accent); }
.aace-switch__pill--tool { margin-left: auto; color: var(--at-accent); border-style: dashed; }
a.aace-switch__pill:focus-visible { outline: 2px solid var(--at-accent); outline-offset: 2px; }

/* ---------------------------------------------------------------- content blocks */
.aace-facts th {
  width: 34%;
  text-align: left;
  font-weight: 600;
  color: var(--at-muted);
  vertical-align: top;
}
.aace-prose p {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--at-text);
  margin: 0 0 1.1em;
  max-width: 68ch;
}
.aace-prose--tight p { font-size: 1rem; line-height: 1.7; }
.aace-two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.aace-panel {
  padding: 28px;
  background: var(--at-panel);
  border: 1px solid var(--at-rule);
  border-top: 3px solid var(--at-accent);
  border-radius: 8px;
}
.aace-panel__title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--at-title);
  margin: 0 0 8px;
}
.aace-panel__sub { font-size: 0.9375rem; color: var(--at-muted); margin: 0 0 16px; line-height: 1.6; }
.aace-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.aace-list li {
  position: relative;
  padding-left: 26px;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--at-text);
}
.aace-list li::before {
  content: '';
  position: absolute;
  left: 2px; top: 0.6em;
  width: 10px; height: 10px;
  border-radius: 2px;
  background: var(--at-accent);
}
.aace-list--warn li::before { background: none; border: 2px solid var(--at-warn); border-radius: 50%; width: 8px; height: 8px; }
.aace-note {
  margin-top: 20px;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--at-muted);
}
.aace-note a, .aace-prose a { color: var(--at-accent); text-decoration: underline; text-underline-offset: 3px; }
.aace-pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--at-rule);
}
.aace-pager__link { font-weight: 600; color: var(--at-accent); text-decoration: none; }
.aace-pager__link:hover { text-decoration: underline; }
.aace-pager__link--next { margin-left: auto; }

/* ---------------------------------------------------------------- FAQ */
.aace-faq { display: grid; gap: 16px; margin-top: 32px; }
.aace-faq__item {
  padding: 24px;
  background: var(--at-bg);
  border: 1px solid var(--at-rule);
  border-radius: 10px;
}
.aace-faq__item h3 { font-size: 1.125rem; font-weight: 700; color: var(--at-title); margin: 0 0 10px; }
.aace-faq__item p { font-size: 1rem; line-height: 1.7; color: var(--at-text); margin: 0; }

/* ---------------------------------------------------------------- calculator: tool band
   Sits in .section--dark (the home page "Proven Results" band), which is dark in the light
   theme and is flipped to a light band (#f5f5f5) by styles.css in the dark theme. Tokens are
   scoped to .aace-tool and only used inside it. */
.aace-tool {
  --tool-title: #ffffff;
  --tool-text: rgba(255, 255, 255, 0.78);
  --tool-muted: rgba(255, 255, 255, 0.58);
  --tool-line: rgba(255, 255, 255, 0.12);
  --tool-field: rgba(255, 255, 255, 0.06);
  --tool-field-line: rgba(255, 255, 255, 0.20);
  --tool-accent: #2bcbba;
  --tool-accent-soft: rgba(43, 203, 186, 0.14);
  --cone-grid: rgba(255, 255, 255, 0.08);
  --cone-area: rgba(43, 203, 186, 0.07);
  --cone-wide: rgba(43, 203, 186, 0.20);
  --cone-you: #2bcbba;
  padding-block: 56px 72px;
}
[data-theme="dark"] .aace-tool {
  --tool-title: #0a0a0a;
  --tool-text: #334155;
  --tool-muted: #5b6676;
  --tool-line: rgba(15, 23, 42, 0.10);
  --tool-field: #ffffff;
  --tool-field-line: rgba(15, 23, 42, 0.18);
  --tool-accent: #0b7a70;
  --tool-accent-soft: rgba(13, 148, 136, 0.10);
  --cone-grid: rgba(15, 23, 42, 0.08);
  --cone-area: rgba(13, 148, 136, 0.06);
  --cone-wide: rgba(13, 148, 136, 0.18);
  --cone-you: #0d9488;
}
.aace-tool__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 32px;
  align-items: start;
}
.aace-tool__form {
  display: grid;
  gap: 22px;
  padding: 28px;
  border: 1px solid var(--tool-line);
  border-radius: 14px;
  background: var(--tool-field);
}
.aace-tool__field { border: 0; margin: 0; padding: 0; min-width: 0; }
.aace-tool__field > label,
.aace-tool__field > legend {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 0;
  margin-bottom: 10px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--tool-title);
}
.aace-tool__field output { color: var(--tool-accent); }
.aace-tool__legend-note { font-weight: 500; color: var(--tool-muted); }
.aace-tool__money { display: flex; }
.aace-tool__money select,
.aace-tool__money input {
  height: 52px;
  padding: 0 14px;
  font-family: inherit;
  color: var(--tool-title);
  background: transparent;
  border: 1px solid var(--tool-field-line);
}
.aace-tool__money select { flex: 0 0 auto; min-width: 5.75em; border-radius: 10px 0 0 10px; border-right: 0; font-size: 0.9375rem; font-weight: 600; }
.aace-tool__money select option { color: #0a0a0a; }
.aace-tool__money input {
  flex: 1 1 auto;
  min-width: 0;
  border-radius: 0 10px 10px 0;
  font-size: 1.375rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.aace-tool__money select:focus-visible,
.aace-tool__money input:focus-visible { outline: 2px solid var(--tool-accent); outline-offset: 1px; }

.aace-tool__classes {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}
.aace-tool__class { position: relative; cursor: pointer; }
.aace-tool__class input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.aace-tool__class span {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 8px;
  border: 1px solid var(--tool-field-line);
  border-radius: 10px;
  text-align: center;
  color: var(--tool-text);
  transition: border-color 150ms ease, background 150ms ease;
}
.aace-tool__class b { font-size: 0.9375rem; color: var(--tool-title); }
.aace-tool__class small { font-size: 0.6875rem; line-height: 1.25; color: var(--tool-muted); }
.aace-tool__class:hover span { border-color: var(--tool-accent); }
.aace-tool__class input:checked + span { border-color: var(--tool-accent); background: var(--tool-accent-soft); box-shadow: inset 0 0 0 1px var(--tool-accent); }
.aace-tool__class input:checked + span b { color: var(--tool-accent); }
.aace-tool__class input:focus-visible + span { outline: 2px solid var(--tool-accent); outline-offset: 2px; }
.aace-tool__hint { display: inline-block; margin-top: 10px; font-size: 0.8125rem; color: var(--tool-accent); text-decoration: underline; text-underline-offset: 3px; }

.aace-tool__field input[type="range"] { width: 100%; accent-color: var(--tool-accent); }
.aace-tool__scale { display: flex; justify-content: space-between; margin-top: 4px; font-size: 0.75rem; color: var(--tool-muted); }

.aace-tool__eyebrow {
  margin: 0 0 14px;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tool-accent);
}
.aace-tool__tiles { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-bottom: 18px; }
.aace-tool__tiles .st-tile__num { font-size: clamp(1.6rem, 2.6vw, 2.25rem); font-variant-numeric: tabular-nums; }
.aace-tool__tiles .st-tile__label { font-size: 0.625rem; letter-spacing: 0.12em; }
.aace-tool__sentence { margin: 0 0 16px; font-size: 1rem; line-height: 1.65; color: var(--tool-text); }
.aace-tool__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.aace-tool__copy {
  padding: 10px 16px;
  font: 600 0.875rem/1 inherit;
  font-family: inherit;
  color: var(--tool-accent);
  background: transparent;
  border: 1px solid var(--tool-accent);
  border-radius: 8px;
  cursor: pointer;
}
.aace-tool__copy:hover { background: var(--tool-accent-soft); }
.aace-tool__copy:focus-visible { outline: 2px solid var(--tool-accent); outline-offset: 2px; }
.aace-tool__copied { font-size: 0.8125rem; color: var(--tool-muted); }

/* ---------------------------------------------------------------- cone of uncertainty */
.aace-cone {
  margin: 36px 0 0;
  padding: 24px 24px 16px;
  border: 1px solid var(--tool-line);
  border-radius: 14px;
  background: var(--tool-field);
}
.aace-cone__head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.aace-cone__title { font-size: 1.125rem; font-weight: 700; color: var(--tool-title); }
.aace-cone__hint { font-size: 0.8125rem; color: var(--tool-muted); }
.aace-cone__plot { width: 100%; min-height: 300px; }
.aace-cone__plot svg { display: block; max-width: 100%; height: auto; font-family: inherit; }
.aace-cone__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--tool-text);
}
.aace-cone__key { display: inline-block; width: 18px; height: 10px; margin-right: 8px; border-radius: 3px; vertical-align: middle; }
.aace-cone__key--wide { background: var(--cone-wide); }
.aace-cone__key--you { background: var(--cone-you); }
.aace-cone__key--line { height: 0; border-top: 2px dashed var(--tool-title); border-radius: 0; opacity: 0.7; }

.cone-grid { stroke: var(--cone-grid); stroke-width: 1; }
.cone-grid--zero { stroke: var(--tool-title); stroke-dasharray: 5 4; opacity: 0.7; }
.cone-axis { fill: var(--tool-muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.cone-axis--money { font-weight: 600; }
.cone-area { fill: var(--cone-area); }
.cone-hit { fill: transparent; stroke: transparent; }
.cone-wide { fill: var(--cone-wide); }
.cone-you { fill: var(--cone-you); opacity: 0.45; transition: opacity 150ms ease; }
.cone-col { cursor: pointer; outline: none; }
.cone-col:hover .cone-hit { fill: var(--tool-accent-soft); }
.cone-col:hover .cone-you { opacity: 0.75; }
.cone-col.is-sel .cone-hit { fill: var(--tool-accent-soft); stroke: var(--tool-accent); stroke-width: 1; }
.cone-col.is-sel .cone-you { opacity: 1; }
.cone-col:focus-visible .cone-hit { stroke: var(--tool-accent); stroke-width: 2; }
.cone-x { fill: var(--tool-title); font-size: 12px; font-weight: 700; }
.cone-x--sub { fill: var(--tool-muted); font-size: 11px; font-weight: 500; }
.cone-val { fill: var(--tool-accent); font-size: 12px; font-weight: 800; font-variant-numeric: tabular-nums; }
.cone-est { fill: var(--tool-title); font-size: 11px; font-weight: 700; }

.aace-tool__numbers { margin-top: 20px; color: var(--tool-text); }
.aace-tool__numbers summary { cursor: pointer; font-weight: 600; color: var(--tool-accent); padding: 8px 0; }
.aace-tool__numbers summary:focus-visible { outline: 2px solid var(--tool-accent); outline-offset: 2px; }
.aace-tool__numbers .table-wrapper { margin-top: 12px; }
#calcTable td { font-variant-numeric: tabular-nums; }
#calcTable tr.is-current td { font-weight: 700; background: rgba(43, 203, 186, 0.12); }

/* ---------------------------------------------------------------- class finder (normal theme tokens) */
.aace-finder {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 40px;
}
.aace-finder__qs { display: grid; gap: 18px; }
@media (min-width: 1200px) {
  .aace-finder { grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr); }
  .aace-finder__qs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.aace-finder__q {
  margin: 0;
  padding: 22px;
  min-width: 0;
  background: var(--at-bg);
  border: 1px solid var(--at-rule);
  border-radius: 12px;
}
.aace-finder__q legend {
  float: left;                    /* keeps the legend inside the card instead of on its border */
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0;
  margin-bottom: 14px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--at-title);
}
.aace-finder__num {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-size: 0.8125rem;
  color: var(--at-accent);
  background: var(--at-accent-soft);
}
.aace-finder__opts { clear: both; display: grid; gap: 8px; }
.aace-finder__opt { position: relative; cursor: pointer; }
.aace-finder__opt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.aace-finder__opt span {
  display: block;
  padding: 11px 14px 11px 40px;
  border: 1px solid var(--at-rule-strong);
  border-radius: 10px;
  font-size: 0.9375rem;
  line-height: 1.45;
  color: var(--at-text);
  position: relative;
}
.aace-finder__opt span::before {
  content: '';
  position: absolute;
  left: 14px; top: 50%;
  width: 14px; height: 14px;
  margin-top: -7px;
  border: 2px solid var(--at-rule-strong);
  border-radius: 50%;
}
.aace-finder__opt:hover span { border-color: var(--at-accent); }
.aace-finder__opt input:checked + span { border-color: var(--at-accent); background: var(--at-accent-soft); color: var(--at-title); }
.aace-finder__opt input:checked + span::before { border-color: var(--at-accent); background: radial-gradient(var(--at-accent) 0 3px, transparent 4px); }
.aace-finder__opt input:focus-visible + span { outline: 2px solid var(--at-accent); outline-offset: 2px; }
.aace-finder__result {
  position: sticky;
  top: 100px;
  padding: 26px;
  background: var(--at-bg);
  border: 1px solid var(--at-rule);
  border-top: 3px solid var(--at-accent);
  border-radius: 12px;
}
.aace-finder__eyebrow { margin: 0 0 6px; font-size: 0.75rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: var(--at-muted); }
.aace-finder__class { margin: 0 0 10px; font-size: 1.5rem; font-weight: 800; letter-spacing: -0.01em; color: var(--at-accent); }
.aace-finder__why { margin: 0 0 18px; font-size: 0.9375rem; line-height: 1.6; color: var(--at-text); }
.aace-finder__use[disabled] { opacity: 0.45; cursor: not-allowed; }

@media (max-width: 960px) {
  .aace-tool__grid, .aace-finder { grid-template-columns: minmax(0, 1fr); }
  .aace-finder__result { position: static; }
  .aace-switch__pill--tool { margin-left: 0; }
}
@media (max-width: 640px) {
  .aace-tool { padding-block: 32px 48px; }
  .aace-tool__form, .aace-cone { padding: 18px 14px; }
  .aace-tool__classes { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
  .aace-tool__class span { padding: 9px 2px; }
  .aace-tool__class small { display: none; }
  .aace-tool__class b { font-size: 0.8125rem; }
  .aace-tool__tiles { grid-template-columns: minmax(0, 1fr); }
  .aace-finder__q { padding: 16px; }
}
@media (max-width: 560px) {
  .aace-panel { padding: 20px 16px; }
  .aace-facts th { width: auto; display: block; padding-bottom: 0; border-bottom: 0; }
  .aace-facts td { display: block; }
}
@media (prefers-reduced-motion: reduce) {
  .cone-you, .aace-tool__class span { transition: none; }
}