/* Digital IQ charcoal presentation. No workflow or acquisition-shell changes. */
:root {
  --iq-canvas: #121212;
  --iq-card: #222222;
  --iq-text: #FFFFFF;
  --iq-muted: #A3A3A3;
  --iq-accent: #F59E0B;
  --iq-border: #363636;
  --iq-control-border: #F59E0B;
  --iq-action: #FFFFFF;
  --iq-action-text: #000000;
  --iq-space: 8px;
  /* Compatibility aliases keep existing components and data bindings intact. */
  --public-ink: var(--iq-canvas);
  --public-surface: var(--iq-card);
  --public-paper: var(--iq-text);
  --public-muted: var(--iq-muted);
  --public-line: var(--iq-border);
  --public-line-strong: var(--iq-border);
  --public-amber: var(--iq-accent);
  --public-amber-soft: rgba(255, 255, 255, 0.04);
  --public-radius-sm: 8px;
  --public-radius: 12px;
  --public-radius-lg: 16px;
  --ink: var(--iq-canvas);
  --surface: var(--iq-card);
  --paper: var(--iq-text);
  --muted: var(--iq-muted);
  --line: var(--iq-border);
  --amber: var(--iq-accent);
  --danger: var(--iq-text);
  color-scheme: dark;
}
body { background: var(--iq-canvas); color: var(--iq-text); }
.public-site-header { min-height: 88px; }
.public-brand__mark, .diq-brand > span:first-child {
  border-color: var(--iq-control-border);
  border-radius: 8px;
}
.public-brand__lockup small, .public-eyebrow, .diq-eyebrow { color: var(--iq-muted); }
.public-section { padding-block: clamp(48px, 7vw, 96px); }
.public-section--contrast, .public-cta, .diq-header,
.digital-iq-result, .digital-iq-order-timeline { background: var(--iq-canvas); }
.service-hero::before { content: none; }
.service-review-card, .service-steps li, .service-offer,
.assessment-preview, .assessment-spark, .evidence-ledger,
.digital-iq-result__summary, .digital-iq-result__dimensions article,
.digital-iq-result__findings li { background: var(--iq-card); box-shadow: none; }
.service-review-card__status {
  float: none;
  display: inline-block;
  margin-bottom: 16px;
  color: var(--iq-text);
  border: 1px solid var(--iq-border);
}
.public-desktop-nav .public-nav-cta, .public-menu .public-nav-cta,
.public-button--primary, .diq-button--primary {
  background: var(--iq-action); color: var(--iq-action-text);
  border-color: var(--iq-action); box-shadow: none;
}
.public-button:hover, .public-nav-cta:hover, .diq-button:hover {
  transform: none; box-shadow: none; border-color: var(--iq-control-border);
}
.public-button--primary:hover, .public-nav-cta:hover, .diq-button--primary:hover {
  background: #E5E5E5; color: var(--iq-action-text); border-color: #E5E5E5;
}
.public-text-link { text-underline-offset: 5px; }
.public-text-link:hover { text-decoration: underline; }
.assessment-preview { border-radius: 12px; overflow: hidden; }
.assessment-preview__disclaimer {
  color: var(--iq-muted); background: var(--iq-canvas);
  border-color: var(--iq-border);
}
.assessment-preview__dimensions button { background: var(--iq-canvas); }
.assessment-preview__dimensions button.is-selected,
.assessment-preview__dimensions button[aria-pressed="true"] {
  background: var(--iq-card);
  border-color: var(--iq-accent);
  box-shadow: inset 0 -3px 0 var(--iq-accent);
}
.assessment-preview__evidence dd { color: var(--iq-text); }
.assessment-spark__signal { border-color: var(--iq-control-border); }
.assessment-spark__signal span { box-shadow: none; animation: none; }
.public-intake-form input:not([type="checkbox"]), .public-intake-form textarea,
.public-intake-form select, .diq-form input:not([type="checkbox"]),
.diq-form textarea, .diq-form select, .diq-danger input {
  border-color: var(--iq-control-border);
}
.public-intake-form [aria-invalid="true"] {
  border: 2px solid var(--iq-text) !important; box-shadow: none;
}
.public-field-error { color: var(--iq-text); }
:focus-visible { outline: 3px solid var(--iq-accent); outline-offset: 4px; }

/* Readability: compact headings, legible metadata, and restrained white rules.
   These are presentation overrides only; sample and commerce bindings persist. */
h1, h2, h3, h4, h5, h6 { color: var(--iq-text); }
h1 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); line-height: 1.2; }
small { color: var(--iq-muted); font-size: 0.875rem; line-height: 1.5; }
.public-page-hero h1 { font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.15; }
.public-section-heading h2, .public-cta h2, .service-trust h2,
.iq-product-heading h2, .iq-offer-summary h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); line-height: 1.2; }
.public-brand__lockup small, .public-eyebrow, .diq-eyebrow {
  font-size: 0.875rem; line-height: 1.5; letter-spacing: 0.06em;
}
.public-lede, .public-prose, .public-section-heading > p { color: var(--iq-text); }
.assessment-preview__header h2 { font-size: clamp(1.5rem, 3vw, 2rem); line-height: 1.2; }
.assessment-preview__score span, .assessment-preview__dimensions strong,
.assessment-preview__detail-heading > strong, .diq-report-score > strong,
.digital-iq-result__score, .digital-iq-result__dimensions article > header > strong,
.diq-report-dimensions strong { color: var(--iq-text); }
.assessment-preview__disclaimer, .assessment-preview__header > div > p:not(.public-eyebrow),
.assessment-preview__meta dt, .assessment-preview__evidence dt,
.assessment-preview__findings dt, .assessment-preview__score small,
.assessment-preview__dimensions button > span {
  color: var(--iq-muted); font-size: 0.875rem; line-height: 1.6; letter-spacing: normal;
}
.assessment-preview__meta dd, .assessment-preview__evidence dd {
  color: var(--iq-text); font-size: 1rem; line-height: 1.65;
}
.assessment-preview__dimensions { gap: 12px; }
.assessment-preview__dimensions button {
  border: 1px solid var(--iq-text); border-radius: 8px; padding: 20px;
}
.assessment-preview__dimensions button > strong { font-size: 2rem; line-height: 1.15; }
.assessment-preview__meta { border-block: 1px solid var(--iq-text); }
.assessment-preview__detail-heading { border-bottom: 1px solid var(--iq-text); padding-bottom: 16px; }
.assessment-preview__findings li { border-top: 1px solid var(--iq-text); }
.assessment-preview__dimensions button:hover { border-color: var(--iq-accent); }
.assessment-preview, .iq-home-preview, .iq-offer-summary { border-radius: 8px; }

/* Homepage: one product introduction, one real component-based sample. */
.iq-home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: center;
  padding-block: clamp(40px, 5vw, 72px);
}
.iq-home-hero h1 {
  max-width: 18ch;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.15;
  font-weight: 650;
}
.iq-home-hero .public-lede { max-width: 44ch; font-size: 1.125rem; line-height: 1.7; }
.iq-home-preview {
  min-width: 0;
  border: 1px solid var(--iq-border);
  border-radius: 8px;
  padding: clamp(20px, 3vw, 32px);
  background: var(--iq-card);
}
.iq-home-preview > header {
  display: flex; justify-content: space-between; align-items: start; gap: 16px;
}
.iq-home-preview h2 { margin-bottom: 4px; font-size: 1.1rem; letter-spacing: 0; }
.iq-home-preview .public-eyebrow { font-size: 0.875rem; }
.iq-preview-score { font: 600 clamp(2.6rem, 5vw, 4rem)/1 ui-monospace, monospace; }
.iq-preview-score small { margin-left: 4px; color: var(--iq-muted); font: 400 0.875rem/1.5 sans-serif; }
.iq-preview-dimensions { display: grid; gap: 16px; margin-block: 24px; }
.iq-preview-dimensions > div { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; border-top: 1px solid var(--iq-text); padding-top: 12px; align-items: center; }
.iq-preview-dimensions dt { color: var(--iq-muted); font-size: 0.875rem; line-height: 1.5; }
.iq-preview-dimensions dd { margin: 0; color: var(--iq-text); font: 600 1.5rem/1.2 ui-monospace, monospace; }
.iq-preview-dimensions dd small { color: var(--iq-muted); font: 400 0.875rem/1.5 system-ui, sans-serif; }
.iq-preview-dimensions meter { grid-column: 1 / -1; width: 100%; height: 6px; accent-color: var(--iq-text); }
meter::-webkit-meter-bar { background: var(--iq-border); border: 0; }
meter::-webkit-meter-optimum-value { background: var(--iq-text); }
meter::-moz-meter-bar { background: var(--iq-text); }
.iq-sample-note { color: var(--iq-muted); font-size: 0.875rem; line-height: 1.6; }
.iq-home-preview .public-text-link { font-size: 1rem; }
.iq-product-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: end; margin-bottom: 32px; }
.iq-product-heading h2 { max-width: 17ch; margin-bottom: 0; }
.iq-product-heading > p { max-width: 52ch; color: var(--iq-muted); margin-bottom: 0; }
.iq-journey { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 24px; margin: 32px 0 0; padding: 0; list-style: none; }
.iq-journey li { min-width: 0; padding-top: 20px; border-top: 1px solid var(--iq-border); }
.iq-journey span { color: var(--iq-muted); font: 500 0.875rem/1.5 ui-monospace, monospace; }
.iq-journey h3 { margin: 12px 0; font-size: 1.15rem; }
.iq-journey p { color: var(--iq-text); font-size: 1rem; line-height: 1.65; }
.iq-offer-summary { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: center; padding: clamp(24px, 4vw, 48px); border: 1px solid var(--iq-border); border-radius: 8px; background: var(--iq-card); }
.iq-offer-summary h2 { max-width: 18ch; margin-bottom: 16px; }
.iq-offer-summary p { max-width: 65ch; color: var(--iq-muted); }
.iq-offer-price { margin: 0 0 24px; color: var(--iq-text); font: 600 2.8rem/1 ui-monospace, monospace; }
.iq-offer-price small { font: 400 0.875rem/1.5 sans-serif; color: var(--iq-muted); }

/* Reports are dark on screen, but keep existing printable paper behavior. */
@media screen {
  .diq-report-site { background: var(--iq-canvas); color: var(--iq-text); }
  .diq-report { background: var(--iq-card); color: var(--iq-text); box-shadow: none; border: 1px solid var(--iq-border); }
  .diq-report header, .diq-report section, .diq-report-dimensions article { border-color: var(--iq-border); }
  .diq-report-score > strong, .diq-report-founder,
  .diq-report-founder .founder-identity__copy strong,
  .diq-report-founder > a { color: var(--iq-text); }
  .diq-report-score > strong span, .diq-report footer,
  .diq-report-founder .founder-identity__copy span { color: var(--iq-muted); }
  .diq-report-founder .founder-identity__portrait { background: var(--iq-canvas); border-color: var(--iq-border); }
  .diq-report-founder .founder-identity__portrait--placeholder span { color: var(--iq-text); }
}
.diq-spark {
  --spark-amber: var(--iq-text); --spark-ink: var(--iq-canvas);
  --spark-paper: var(--iq-text); --spark-line: var(--iq-border);
}
.diq-spark__signal, .diq-spark__panel { background: var(--iq-card); border-color: var(--iq-border); }
.diq-spark__header, .diq-spark__brief,
.diq-spark__shell[open] > .diq-spark__closed,
.diq-weekly-constraint, .solutions-example .comparison-sitebar,
.solutions-example .comparison-lower { background: var(--iq-canvas); }
@media (max-width: 900px) {
  .iq-home-hero, .iq-product-heading { grid-template-columns: minmax(0, 1fr); }
  .iq-home-hero h1 { max-width: 18ch; }
  .iq-journey { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 540px) {
  .iq-home-hero { padding-block: 48px; }
  .iq-offer-summary { grid-template-columns: minmax(0, 1fr); }
  .iq-offer-summary .public-button { width: 100%; }
  .iq-journey { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .iq-journey li { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 0 10px; }
  .iq-journey h3 { margin-top: 0; }
  .iq-journey p { grid-column: 2; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
}
@media (forced-colors: active) {
  .iq-home-preview, .iq-offer-summary, .diq-report { border: 1px solid CanvasText; }
  :focus-visible { outline-color: Highlight; }
}
@media print {
  .diq-report-site {
    --paper: #151922; --muted: #4B5563; --amber: #151922;
    --iq-text: #151922; --iq-muted: #4B5563;
    background: #FFFFFF; color: #151922; color-scheme: light;
  }
  .diq-report .diq-eyebrow { color: #4B5563; }
}