/* IMAC presentation layer — Pico.css overrides */

:root {
  --imac-navy: #1a3a5c;
  --imac-accent: #4a6741;
  --pico-primary: var(--imac-navy);
  --pico-primary-background: var(--imac-navy);
  --pico-font-family: system-ui, "Segoe UI", Roboto, sans-serif;
  --pico-typography-spacing-vertical: 0.75rem;
  --pico-form-element-spacing-vertical: 0.45rem;
  --pico-spacing: 0.75rem;
  /* Room for calculator + ~300px AdSense rail */
  --pico-container-max-width: 1180px;
  --page-rail-width: 300px;
}

.imac-header {
  border-bottom: 1px solid var(--pico-muted-border-color);
  margin-bottom: 0.75rem;
  padding-bottom: 0.35rem;
}

.imac-header nav {
  margin-bottom: 0.15rem;
}

.imac-subtitle {
  color: var(--pico-muted-color);
  font-size: 0.78rem;
  line-height: 1.3;
  margin: 0;
}

.imac-footer {
  border-top: 1px solid var(--pico-muted-border-color);
  color: var(--pico-muted-color);
  margin-top: 1.5rem;
  padding-top: 0.65rem;
  text-align: center;
}

/* Page shell: primary content + optional right ad rail */
.page-shell {
  align-items: start;
  display: grid;
  gap: 1.25rem 1.5rem;
  grid-template-columns: minmax(0, 1fr) var(--page-rail-width);
}

.page-main {
  min-width: 0;
}

.page-rail {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  position: sticky;
  top: 0.75rem;
}

.page-rail-label {
  color: var(--pico-muted-color);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  margin: 0;
  text-align: center;
  text-transform: uppercase;
}

.ad-slot {
  display: flex;
  justify-content: center;
  min-height: 250px;
  overflow: hidden;
  width: 100%;
}

.ad-slot-placeholder {
  align-items: center;
  background: repeating-linear-gradient(
    -45deg,
    rgba(26, 58, 92, 0.04),
    rgba(26, 58, 92, 0.04) 8px,
    rgba(26, 58, 92, 0.08) 8px,
    rgba(26, 58, 92, 0.08) 16px
  );
  border: 1px dashed var(--pico-muted-border-color);
  color: var(--pico-muted-color);
  display: flex;
  flex-direction: column;
  font-size: 0.72rem;
  gap: 0.15rem;
  justify-content: center;
  min-height: 250px;
  width: 100%;
}

/* Calculator page — compact above-the-fold layout */
.calculator-page {
  margin-bottom: 0;
}

.calculator-header {
  margin-bottom: 0.65rem;
}

.calculator-header h1 {
  font-size: 1.45rem;
  line-height: 1.15;
  margin-bottom: 0.2rem;
}

.calculator-lead {
  color: var(--pico-muted-color);
  font-size: 0.88rem;
  line-height: 1.35;
  margin: 0;
}

.ame-form fieldset {
  margin-bottom: 0.65rem;
}

.ame-fieldset {
  padding: 0.65rem 0.75rem 0.55rem;
}

.ame-fieldset--nested {
  margin-top: 0.5rem;
  padding: 0.55rem 0.65rem 0.45rem;
}

.ame-fieldset legend {
  font-size: 0.82rem;
  padding: 0 0.25rem;
}

.ame-grid {
  display: grid;
  gap: 0.45rem 0.65rem;
  grid-template-columns: repeat(3, 1fr);
}

.ame-grid--optional {
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 0.35rem;
}

.ame-grid--tight {
  grid-template-columns: repeat(3, 1fr);
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.field-label {
  font-size: 0.82rem;
  font-weight: 500;
}

.field-inline {
  display: flex;
  gap: 0.35rem;
}

.field-inline input {
  flex: 1;
  margin-bottom: 0;
  min-width: 0;
}

.field-inline select {
  flex: 0 0 auto;
  margin-bottom: 0;
  min-width: 3.5rem;
  padding-left: 0.4rem;
  padding-right: 1.5rem;
  width: auto;
}

.ame-form label {
  font-size: 0.82rem;
  margin-bottom: 0;
}

.ame-form input:not([type="checkbox"]):not([type="radio"]),
.ame-form select {
  font-size: 0.9rem;
  margin-bottom: 0;
  padding: 0.35rem 0.5rem;
}

.form-hint {
  color: var(--pico-muted-color);
  font-size: 0.75rem;
  line-height: 1.3;
  margin: 0.35rem 0 0;
}

.ame-optional {
  background: color-mix(in srgb, var(--imac-accent) 6%, var(--pico-background-color, #fff));
  border: 1px solid color-mix(in srgb, var(--imac-accent) 35%, var(--pico-muted-border-color));
  border-left: 3px solid var(--imac-accent);
  border-radius: 0.25rem;
  margin-bottom: 0.65rem;
  padding: 0.55rem 0.75rem 0.5rem;
}

.ame-optional summary {
  align-items: flex-start;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.92rem;
  font-weight: 600;
  list-style: none;
  padding: 0.15rem 0;
}

.ame-optional summary::-webkit-details-marker {
  display: none;
}

.ame-optional summary::before {
  color: var(--imac-accent);
  content: "▸ ";
  font-weight: 700;
}

.ame-optional[open] summary::before {
  content: "▾ ";
}

.ame-optional-title {
  color: var(--imac-navy);
}

.ame-optional-cue {
  color: var(--imac-accent);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.3;
  padding-left: 0.95rem;
}

.ame-optional-lead {
  color: var(--pico-muted-color);
  font-size: 0.78rem;
  line-height: 1.35;
  margin: 0 0 0.55rem;
}

.ame-optional[open] summary {
  margin-bottom: 0.35rem;
}

.checkbox-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  margin-top: 0.35rem;
}

.checkbox-inline {
  align-items: center;
  display: inline-flex;
  font-size: 0.82rem;
  gap: 0.35rem;
  margin: 0;
  width: auto;
}

.checkbox-inline input {
  margin: 0;
}

.ame-submit-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: 0.15rem;
}

.ame-submit-row button {
  margin: 0;
  padding: 0.45rem 1rem;
  width: auto;
}

.htmx-indicator {
  color: var(--pico-muted-color);
  display: none;
  font-size: 0.85rem;
  font-style: italic;
  margin: 0;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  display: inline;
}

.results-panel {
  margin-top: 1.25rem;
}

.advisory,
.speculative-note {
  border-left: 3px solid var(--imac-accent);
  padding-left: 1rem;
}

.tez-reasons {
  list-style: none;
  padding-left: 0;
}

.privacy-notice {
  font-size: 0.85rem;
  color: var(--pico-muted-color);
  line-height: 1.35;
  margin: 0.35rem 0 0;
}

/* Methodology easter-egg citation — readable, not shouty */
a.citation-egg {
  color: inherit;
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 0.15em;
}

a.citation-egg:hover {
  color: var(--imac-navy);
  text-decoration-style: solid;
}

/* IMAC 6.x standards document */
.standards-doc {
  max-width: 42rem;
}

.standards-doc-header {
  border-bottom: 1px solid var(--pico-muted-border-color);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
}

.standards-doc-eyebrow {
  color: var(--imac-navy);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin: 0 0 0.25rem;
  text-transform: uppercase;
}

.standards-doc-meta {
  color: var(--pico-muted-color);
  font-size: 0.78rem;
  font-style: italic;
  margin: 0 0 0.5rem;
}

.standards-doc h1 {
  font-size: 1.45rem;
  line-height: 1.2;
  margin-bottom: 0.4rem;
}

.standards-doc-dek {
  color: var(--pico-muted-color);
  font-size: 0.92rem;
  margin: 0;
}

.standards-callout {
  background: rgba(26, 58, 92, 0.05);
  border-left: 3px solid var(--imac-navy);
  font-size: 0.88rem;
  margin: 1rem 0 1.25rem;
  padding: 0.65rem 0.85rem;
}

.standards-table {
  font-size: 0.88rem;
}

.standards-table th {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.standards-quote {
  border-left: 3px solid var(--imac-accent);
  font-size: 0.92rem;
  font-style: italic;
  margin: 1rem 0;
  padding-left: 0.85rem;
}

.standards-quote footer {
  color: var(--pico-muted-color);
  font-size: 0.78rem;
  font-style: normal;
  margin-top: 0.5rem;
}

.standards-formula {
  background: rgba(0, 0, 0, 0.04);
  font-size: 0.85rem;
  overflow-x: auto;
  padding: 0.65rem 0.85rem;
}

.standards-footer-meta {
  color: var(--pico-muted-color);
  font-size: 0.78rem;
}

.standards-nav {
  margin-top: 1.5rem;
}

@media (max-width: 960px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .page-rail {
    border-top: 1px solid var(--pico-muted-border-color);
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    padding-top: 0.85rem;
    position: static;
  }

  .ad-slot {
    flex: 0 1 300px;
    max-width: 300px;
  }
}

@media (max-width: 720px) {
  .ame-grid,
  .ame-grid--optional,
  .ame-grid--tight {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .ame-grid,
  .ame-grid--optional,
  .ame-grid--tight {
    grid-template-columns: 1fr;
  }
}

@media print {
  header.imac-header,
  footer.imac-footer,
  nav,
  .page-rail,
  .calculator-page,
  .results-panel > header,
  .results-panel > table,
  .results-panel > p,
  .results-panel > ul,
  .results-panel > .privacy-notice,
  details.certificate-request > summary,
  details.certificate-request > form,
  .certificate-print,
  .no-print {
    display: none !important;
  }

  .page-shell {
    display: block;
  }
}