/* PowerGridTools website: the shared design system (task site-foundation, docs/site/concept-contract.md).
   It consumes the --pgt-* tokens a concept defines in its tokens.css and never defines them itself.
   Breakpoints: 640px (small), 960px (medium), 1280px (large). No inline styles anywhere (CSP). */

/* ------------------------------------------------------------------ reset and document */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--pgt-space-unit) * 10);
}
body {
  margin: 0;
  background: var(--pgt-color-bg);
  color: var(--pgt-color-text);
  font-family: var(--pgt-font-sans);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { font-family: var(--pgt-font-display); line-height: 1.2; margin: 0 0 calc(var(--pgt-space-unit) * 2); }
h1 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem); letter-spacing: -0.01em; }
h3 { font-size: 1.1875rem; }
h4, .pgt-h4 { font-size: 1.0625rem; }
p, ul, ol, dl, table, figure { margin: 0 0 calc(var(--pgt-space-unit) * 2); }
a { color: var(--pgt-color-primary); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }
code, .pgt-code { font-family: var(--pgt-font-mono); font-size: 0.875em; }
:focus-visible {
  outline: 3px solid var(--pgt-color-primary);
  outline-offset: 2px;
  border-radius: var(--pgt-radius-s);
}
::selection { background: var(--pgt-color-primary); color: var(--pgt-color-on-primary); }

/* ------------------------------------------------------------------ helpers */
.pgt-visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.pgt-skip-link {
  position: absolute; left: calc(var(--pgt-space-unit) * 2); top: -10rem; z-index: 100;
  padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 2);
  background: var(--pgt-color-primary); color: var(--pgt-color-on-primary);
  border-radius: var(--pgt-radius-m); font-weight: 600;
}
.pgt-skip-link:focus { top: calc(var(--pgt-space-unit) * 2); }
.pgt-muted { color: var(--pgt-color-muted); }
.pgt-small { font-size: 0.875rem; }
.pgt-center { text-align: center; }
.pgt-break { overflow-wrap: anywhere; word-break: break-all; }
.pgt-inline-list { display: flex; flex-wrap: wrap; gap: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 2); list-style: none; padding: 0; }
.pgt-stack > * + * { margin-top: calc(var(--pgt-space-unit) * 5); }

/* ------------------------------------------------------------------ layout grid */
.pgt-container {
  width: 100%; max-width: var(--pgt-max-width); margin-inline: auto;
  padding-inline: calc(var(--pgt-space-unit) * 2);
}
.pgt-narrow { max-width: 50rem; }
.pgt-section { padding-block: calc(var(--pgt-space-unit) * 7); }
.pgt-section--tight { padding-block: calc(var(--pgt-space-unit) * 4); }
.pgt-section--alt { background: var(--pgt-color-surface); }
.pgt-section__header { max-width: 46rem; margin-bottom: calc(var(--pgt-space-unit) * 4); }
.pgt-hero__grid, .pgt-split, .pgt-prose-grid { display: grid; gap: calc(var(--pgt-space-unit) * 4); align-items: center; }
/* auto-fit: a row with fewer cards than columns spreads them over the full width instead of leaving empty columns */
.pgt-card-grid, .pgt-plan-grid {
  display: grid; gap: calc(var(--pgt-space-unit) * 2); list-style: none; padding: 0;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
}
.pgt-plan-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); align-items: stretch; }

/* ------------------------------------------------------------------ type scale */
.pgt-display { font-size: clamp(2.125rem, 1.5rem + 2.6vw, 3.25rem); font-weight: 750; }
.pgt-lead { font-size: 1.1875rem; color: var(--pgt-color-muted); max-width: 46rem; }
.pgt-eyebrow {
  font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--pgt-color-primary); margin-bottom: var(--pgt-space-unit);
}
.pgt-prose { max-width: 46rem; }
.pgt-prose h2 { margin-top: calc(var(--pgt-space-unit) * 4); font-size: 1.375rem; }

/* ------------------------------------------------------------------ buttons */
.pgt-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--pgt-space-unit);
  min-height: 2.75rem; padding: calc(var(--pgt-space-unit) * 1.25) calc(var(--pgt-space-unit) * 2.5);
  border: 2px solid transparent; border-radius: var(--pgt-radius-m);
  font: inherit; font-weight: 600; line-height: 1.2; text-decoration: none; cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.pgt-btn--primary { background: var(--pgt-color-primary); color: var(--pgt-color-on-primary); }
.pgt-btn--primary:hover { box-shadow: var(--pgt-shadow-2); filter: brightness(1.08); }
.pgt-btn--secondary { background: var(--pgt-color-bg); color: var(--pgt-color-primary); border-color: var(--pgt-color-primary); }
.pgt-btn--secondary:hover { background: var(--pgt-color-surface); }
.pgt-btn--ghost { background: transparent; color: var(--pgt-color-text); }
.pgt-btn--ghost:hover { background: var(--pgt-color-surface-2); }
.pgt-btn--danger { background: var(--pgt-color-danger); color: #ffffff; }
.pgt-btn--danger:hover { filter: brightness(1.1); }
.pgt-btn--large { min-height: 3.25rem; padding-inline: calc(var(--pgt-space-unit) * 3.5); font-size: 1.0625rem; }
.pgt-btn--small { min-height: 2rem; padding: calc(var(--pgt-space-unit) * 0.5) var(--pgt-space-unit); font-size: 0.8125rem; }
.pgt-btn[disabled], .pgt-btn[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
.pgt-actions { display: flex; flex-wrap: wrap; gap: calc(var(--pgt-space-unit) * 1.5); margin-block: calc(var(--pgt-space-unit) * 3); }
.pgt-actions--center { justify-content: center; }

/* ------------------------------------------------------------------ forms */
.pgt-form { display: grid; gap: calc(var(--pgt-space-unit) * 2); }
.pgt-form__row { display: grid; gap: calc(var(--pgt-space-unit) * 2); }
.pgt-field { display: grid; gap: calc(var(--pgt-space-unit) * 0.5); }
.pgt-field--check { grid-template-columns: auto 1fr; align-items: start; column-gap: var(--pgt-space-unit); }
.pgt-field--check .pgt-field__error { grid-column: 1 / -1; }
.pgt-label { font-weight: 600; }
.pgt-input {
  width: 100%; min-height: 2.75rem; padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 1.5);
  font: inherit; color: var(--pgt-color-text); background: var(--pgt-color-bg);
  border: 1px solid var(--pgt-color-muted); border-radius: var(--pgt-radius-m);
}
.pgt-textarea { min-height: 9rem; resize: vertical; }
.pgt-input:focus-visible { outline: 3px solid var(--pgt-color-primary); outline-offset: 1px; border-color: var(--pgt-color-primary); }
.pgt-check { width: 1.25rem; height: 1.25rem; margin-top: 0.2rem; accent-color: var(--pgt-color-primary); }
.pgt-input[aria-invalid="true"], .pgt-check[aria-invalid="true"] { border-color: var(--pgt-color-danger); border-width: 2px; }
.pgt-field__error { color: var(--pgt-color-danger); font-size: 0.875rem; font-weight: 600; margin: 0; }
.pgt-honeypot { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* ------------------------------------------------------------------ cards, badges, lists */
.pgt-card {
  background: var(--pgt-color-bg); border: 1px solid var(--pgt-color-border);
  border-radius: var(--pgt-radius-l); padding: calc(var(--pgt-space-unit) * 3);
  box-shadow: var(--pgt-shadow-1);
}
.pgt-card > :last-child { margin-bottom: 0; }
.pgt-card__title { font-size: 1.0625rem; margin-bottom: var(--pgt-space-unit); }
.pgt-card__text { color: var(--pgt-color-muted); }
.pgt-badges { display: flex; flex-wrap: wrap; gap: calc(var(--pgt-space-unit) * 0.5); margin: var(--pgt-space-unit) 0 0; }
.pgt-badge {
  display: inline-block; padding: 0.125rem calc(var(--pgt-space-unit) * 1);
  font-size: 0.75rem; font-weight: 600; line-height: 1.5;
  color: var(--pgt-color-text); background: var(--pgt-color-surface-2);
  border: 1px solid var(--pgt-color-border); border-radius: 999px;
}
.pgt-checklist { list-style: none; padding: 0; display: grid; gap: var(--pgt-space-unit); }
.pgt-checklist li { position: relative; padding-left: 1.75rem; }
.pgt-checklist li::before {
  content: ""; position: absolute; left: 0.25rem; top: 0.45em; width: 0.5rem; height: 0.875rem;
  border: solid var(--pgt-color-success); border-width: 0 0.18rem 0.18rem 0; transform: rotate(45deg);
}
.pgt-steps { list-style: none; padding: 0; display: grid; gap: calc(var(--pgt-space-unit) * 2); counter-reset: pgt-step; }
.pgt-step { position: relative; padding-left: 3.25rem; counter-increment: pgt-step; }
.pgt-step::before {
  content: counter(pgt-step); position: absolute; left: 0; top: 0;
  display: grid; place-items: center; width: 2.25rem; height: 2.25rem; border-radius: 50%;
  background: var(--pgt-color-primary); color: var(--pgt-color-on-primary); font-weight: 700;
}
.pgt-step h3, .pgt-step h2 { margin-bottom: calc(var(--pgt-space-unit) * 0.5); padding-top: 0.25rem; }
.pgt-step p { color: var(--pgt-color-muted); margin: 0; }
.pgt-group__title { padding-bottom: var(--pgt-space-unit); border-bottom: 2px solid var(--pgt-color-border); }
.pgt-disclosure { border-bottom: 1px solid var(--pgt-color-border); padding-block: calc(var(--pgt-space-unit) * 1.5); }
.pgt-disclosure summary { cursor: pointer; font-weight: 600; }
.pgt-disclosure p { margin: var(--pgt-space-unit) 0 0; color: var(--pgt-color-muted); }

/* ------------------------------------------------------------------ figures and stats */
.pgt-figure { margin: calc(var(--pgt-space-unit) * 3) 0; }
.pgt-figure img {
  width: 100%; background: #ffffff; border: 1px solid var(--pgt-color-border);
  border-radius: var(--pgt-radius-l); box-shadow: var(--pgt-shadow-2);
}
.pgt-figure figcaption { margin-top: var(--pgt-space-unit); font-size: 0.875rem; color: var(--pgt-color-muted); }
.pgt-stats {
  display: grid; gap: calc(var(--pgt-space-unit) * 2); grid-template-columns: repeat(2, 1fr); margin: 0 0 calc(var(--pgt-space-unit) * 2);
}
.pgt-stat { display: flex; flex-direction: column-reverse; text-align: center; }
.pgt-stat dd { margin: 0; font-family: var(--pgt-font-display); font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem); font-weight: 750; color: var(--pgt-color-primary); }
.pgt-stat dt { color: var(--pgt-color-muted); font-size: 0.9375rem; }

/* ------------------------------------------------------------------ plans */
.pgt-plan { display: flex; flex-direction: column; }
.pgt-plan__name { font-size: 1.25rem; margin-bottom: 0; }
.pgt-plan__price { font-size: 1.5rem; font-weight: 750; color: var(--pgt-color-primary); margin: var(--pgt-space-unit) 0; }
.pgt-plan__description { color: var(--pgt-color-muted); }
.pgt-plan .pgt-checklist { flex: 1; align-content: start; }
.pgt-plan__facts { display: grid; gap: calc(var(--pgt-space-unit) * 0.5); font-size: 0.875rem; margin-bottom: calc(var(--pgt-space-unit) * 2); }
.pgt-plan__facts div { display: flex; justify-content: space-between; gap: var(--pgt-space-unit); border-top: 1px solid var(--pgt-color-border); padding-top: calc(var(--pgt-space-unit) * 0.5); }
.pgt-plan__facts dt { color: var(--pgt-color-muted); }
.pgt-plan__facts dd { margin: 0; font-weight: 600; text-align: right; }

/* ------------------------------------------------------------------ tables */
.pgt-table-wrap { overflow-x: auto; border: 1px solid var(--pgt-color-border); border-radius: var(--pgt-radius-m); margin-bottom: calc(var(--pgt-space-unit) * 2); }
.pgt-table { width: 100%; border-collapse: collapse; margin: 0; font-size: 0.9375rem; }
.pgt-table caption { text-align: left; font-weight: 700; padding: calc(var(--pgt-space-unit) * 1.5) calc(var(--pgt-space-unit) * 2); }
.pgt-table th, .pgt-table td { text-align: left; vertical-align: top; padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 2); border-top: 1px solid var(--pgt-color-border); }
.pgt-table thead th { background: var(--pgt-color-surface); font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.04em; }
.pgt-table tbody th { font-weight: 600; white-space: nowrap; }

/* ------------------------------------------------------------------ alerts */
.pgt-alert {
  padding: calc(var(--pgt-space-unit) * 2); border-radius: var(--pgt-radius-m);
  border: 1px solid var(--pgt-color-border); border-left-width: 6px; background: var(--pgt-color-surface);
  margin-bottom: calc(var(--pgt-space-unit) * 2);
}
.pgt-alert > :last-child { margin-bottom: 0; }
.pgt-alert__title { font-weight: 700; font-size: 1.0625rem; margin-bottom: calc(var(--pgt-space-unit) * 0.5); }
.pgt-alert--info { border-left-color: var(--pgt-color-primary); }
.pgt-alert--success { border-left-color: var(--pgt-color-success); }
.pgt-alert--warning { border-left-color: var(--pgt-color-warning); }
.pgt-alert--danger { border-left-color: var(--pgt-color-danger); }
.pgt-alert--danger a { color: var(--pgt-color-danger); font-weight: 600; }

/* ------------------------------------------------------------------ header and navigation */
.pgt-header { position: sticky; top: 0; z-index: 50; background: var(--pgt-color-bg); border-bottom: 1px solid var(--pgt-color-border); }
.pgt-header__bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--pgt-space-unit); min-height: 4rem; }
.pgt-brand { display: inline-flex; align-items: center; gap: var(--pgt-space-unit); color: var(--pgt-color-text); text-decoration: none; font-weight: 750; font-size: 1.125rem; }
.pgt-nav-toggle {
  display: none; align-items: center; gap: var(--pgt-space-unit); min-height: 2.75rem; padding: 0 calc(var(--pgt-space-unit) * 1.5);
  font: inherit; font-weight: 600; color: var(--pgt-color-text); background: transparent;
  border: 1px solid var(--pgt-color-border); border-radius: var(--pgt-radius-m); cursor: pointer;
}
.pgt-nav-toggle__icon, .pgt-nav-toggle__icon::before, .pgt-nav-toggle__icon::after {
  display: block; width: 1.125rem; height: 2px; background: currentColor; position: relative;
}
.pgt-nav-toggle__icon::before, .pgt-nav-toggle__icon::after { content: ""; position: absolute; left: 0; }
.pgt-nav-toggle__icon::before { top: -6px; }
.pgt-nav-toggle__icon::after { top: 6px; }
.pgt-js .pgt-nav-toggle { display: inline-flex; }
.pgt-nav { flex-basis: 100%; display: flex; flex-direction: column; gap: calc(var(--pgt-space-unit) * 2); padding-bottom: calc(var(--pgt-space-unit) * 2); }
.pgt-js .pgt-nav:not(.is-open) { display: none; }
.pgt-nav__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: calc(var(--pgt-space-unit) * 0.25); }
.pgt-nav__link {
  display: block; padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 1.25); border-radius: var(--pgt-radius-m);
  color: var(--pgt-color-text); text-decoration: none; font-weight: 550; cursor: pointer; white-space: nowrap;
}
.pgt-nav__link:hover { background: var(--pgt-color-surface-2); }
.pgt-nav__link[aria-current="page"], .pgt-nav__link.is-active { color: var(--pgt-color-primary); box-shadow: inset 0 -2px 0 var(--pgt-color-primary); }
.pgt-nav__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--pgt-space-unit); }
.pgt-menu { position: relative; }
.pgt-menu > summary { list-style: none; }
.pgt-menu > summary::-webkit-details-marker { display: none; }
.pgt-menu > summary::after { content: ""; display: inline-block; margin-left: 0.4em; border: 0.3em solid transparent; border-top-color: currentColor; vertical-align: 0.05em; }
.pgt-menu__list { list-style: none; margin: var(--pgt-space-unit) 0 0; padding: calc(var(--pgt-space-unit) * 0.5); }
.pgt-menu__link {
  display: block; width: 100%; padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 1.5); border-radius: var(--pgt-radius-s);
  color: var(--pgt-color-text); text-decoration: none; text-align: left;
}
.pgt-menu__link:hover, .pgt-menu__link[aria-current="page"] { background: var(--pgt-color-surface-2); }
.pgt-menu__form { margin: 0; }
.pgt-menu__button { font: inherit; background: none; border: 0; cursor: pointer; }
.pgt-lang { list-style: none; display: flex; gap: calc(var(--pgt-space-unit) * 0.5); margin: 0; padding: 0; }
.pgt-lang__link { display: inline-block; padding: calc(var(--pgt-space-unit) * 0.5) var(--pgt-space-unit); border-radius: var(--pgt-radius-s); color: var(--pgt-color-muted); text-decoration: none; font-weight: 600; font-size: 0.875rem; }
.pgt-lang__link[aria-current="true"] { color: var(--pgt-color-text); background: var(--pgt-color-surface-2); }
.pgt-nav__actions .pgt-btn { white-space: nowrap; }
.pgt-account__chip { display: inline-flex; align-items: center; gap: var(--pgt-space-unit); padding: calc(var(--pgt-space-unit) * 0.5) var(--pgt-space-unit); border: 1px solid var(--pgt-color-border); border-radius: 999px; cursor: pointer; }
.pgt-avatar {
  display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--pgt-color-primary); color: #ffffff; font-size: 0.8125rem; font-weight: 700;
}
.pgt-account__name { font-weight: 600; max-width: 12rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* the announcement banner above the header (admin-console-ops, /admin/settings/site) */
.pgt-announcement { background: var(--pgt-color-surface-2); border-bottom: 1px solid var(--pgt-color-border); border-top: 3px solid var(--pgt-color-primary); }
.pgt-announcement__text { margin: 0; padding-block: var(--pgt-space-unit); font-weight: 600; }
.pgt-toc { margin-top: calc(var(--pgt-space-unit) * 3); }

/* ------------------------------------------------------------------ footer */
.pgt-footer { background: var(--pgt-color-surface); border-top: 1px solid var(--pgt-color-border); padding-block: calc(var(--pgt-space-unit) * 6) calc(var(--pgt-space-unit) * 3); }
.pgt-footer__grid { display: grid; gap: calc(var(--pgt-space-unit) * 3); grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); }
.pgt-footer__heading { font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--pgt-color-muted); }
.pgt-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: calc(var(--pgt-space-unit) * 0.75); }
.pgt-footer a { color: var(--pgt-color-text); text-decoration: none; }
.pgt-footer a:hover { text-decoration: underline; }
.pgt-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 3); margin-top: calc(var(--pgt-space-unit) * 4); padding-top: calc(var(--pgt-space-unit) * 2); border-top: 1px solid var(--pgt-color-border); color: var(--pgt-color-muted); }
.pgt-footer__bottom p { margin: 0; }
.pgt-footer__bottom .pgt-lang { display: flex; }

/* ------------------------------------------------------------------ marketing blocks */
.pgt-hero { padding-block: calc(var(--pgt-space-unit) * 6); }
.pgt-page-hero { padding-bottom: calc(var(--pgt-space-unit) * 4); }
.pgt-hero .pgt-figure { margin: 0; }
.pgt-cta__box { text-align: center; border-radius: var(--pgt-radius-l); padding: calc(var(--pgt-space-unit) * 6) calc(var(--pgt-space-unit) * 3); background: var(--pgt-color-surface-2); }
.pgt-cta__box .pgt-lead { margin-inline: auto; }

/* ------------------------------------------------------------------ auth and portal shells */
.pgt-auth { min-height: 100vh; display: grid; align-content: center; justify-items: center; gap: calc(var(--pgt-space-unit) * 3); padding: calc(var(--pgt-space-unit) * 4) calc(var(--pgt-space-unit) * 2); background: var(--pgt-color-surface); }
.pgt-auth__card { width: 100%; max-width: 28rem; }
.pgt-auth__footer { font-size: 0.875rem; }
.pgt-portal__layout { display: grid; gap: calc(var(--pgt-space-unit) * 3); padding-block: calc(var(--pgt-space-unit) * 4); }
.pgt-portal__nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: calc(var(--pgt-space-unit) * 0.5); }
.pgt-portal__link { display: block; padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 1.5); border-radius: var(--pgt-radius-m); color: var(--pgt-color-text); text-decoration: none; }
.pgt-portal__link:hover { background: var(--pgt-color-surface-2); }
.pgt-portal__link[aria-current="page"] { background: var(--pgt-color-primary); color: var(--pgt-color-on-primary); }

/* ------------------------------------------------------------------ Electra's recorded conversation */
/* site/fragments/ui :: electraConversation (task site-live-demo-and-electra): a transcript like Electra's panel. */
.pgt-chat { border: 1px solid var(--pgt-color-border); border-radius: var(--pgt-radius-l); background: var(--pgt-color-bg); }
.pgt-chat__head, .pgt-chat__foot { padding: calc(var(--pgt-space-unit) * 2); }
.pgt-chat__head { border-bottom: 1px solid var(--pgt-color-border); }
.pgt-chat__foot { border-top: 1px solid var(--pgt-color-border); display: grid; gap: var(--pgt-space-unit); }
.pgt-chat__head > *, .pgt-chat__foot > * { margin: 0; }
.pgt-chat__head > * + * { margin-top: calc(var(--pgt-space-unit) * 0.75); }
.pgt-chat__label {
  font-family: var(--pgt-font-mono); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--pgt-color-primary);
}
.pgt-chat__title { font-size: 1.125rem; }
.pgt-chat__lead, .pgt-chat__note { font-size: 0.875rem; color: var(--pgt-color-muted); }
.pgt-chat__note { font-style: italic; }
.pgt-chat__scroll { max-height: 34rem; overflow: auto; padding: calc(var(--pgt-space-unit) * 2); }
.pgt-chat__scroll:focus-visible, .pgt-chat__rest:focus-visible { outline: 3px solid var(--pgt-color-accent); outline-offset: -3px; }
.pgt-chat__log, .pgt-chat__steps { list-style: none; margin: 0; padding: 0; }
.pgt-chat__log { display: grid; gap: calc(var(--pgt-space-unit) * 1.5); }
.pgt-chat__item { min-width: 0; }
.pgt-chat__who {
  margin: 0 0 calc(var(--pgt-space-unit) * 0.5); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em;
  color: var(--pgt-color-muted);
}
.pgt-chat__text { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 0.9375rem; }
.pgt-chat__item.is-user .pgt-chat__text, .pgt-chat__item.is-user .pgt-chat__more {
  padding: var(--pgt-space-unit) calc(var(--pgt-space-unit) * 1.5); background: var(--pgt-color-surface);
  border-left: 3px solid var(--pgt-color-primary);
}
.pgt-chat__item.is-user .pgt-chat__more { padding-top: 0; }
.pgt-chat__more summary { cursor: pointer; font-size: 0.875rem; color: var(--pgt-color-accent); }
.pgt-chat__rest {
  margin: var(--pgt-space-unit) 0 0; overflow-x: auto; font-family: var(--pgt-font-mono); font-size: 0.75rem;
  line-height: 1.5;
}
.pgt-chat__item.is-assistant .pgt-chat__who { color: var(--pgt-color-primary); }
.pgt-chat__item.is-steps { padding-left: calc(var(--pgt-space-unit) * 1.5); border-left: 1px dashed var(--pgt-color-border); }
.pgt-chat__steps { display: grid; gap: calc(var(--pgt-space-unit) * 0.5); font-size: 0.8125rem; }
.pgt-chat__step { display: grid; grid-template-columns: auto 1fr; column-gap: var(--pgt-space-unit); min-width: 0; }
.pgt-chat__tool { font-family: var(--pgt-font-mono); color: var(--pgt-color-primary); white-space: nowrap; }
.pgt-chat__args { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--pgt-color-text); }
.pgt-chat__result {
  grid-column: 1 / -1; min-width: 0; overflow-wrap: anywhere; font-family: var(--pgt-font-mono); font-size: 0.75rem;
  color: var(--pgt-color-muted);
}
.pgt-chat__result::before { content: "→ "; }
.pgt-chat__step.is-error .pgt-chat__result { color: var(--pgt-color-danger); }

/* ------------------------------------------------------------------ breakpoints */
@media (min-width: 640px) {
  .pgt-container { padding-inline: calc(var(--pgt-space-unit) * 3); }
  .pgt-form__row { grid-template-columns: 1fr 1fr; }
  .pgt-stats { grid-template-columns: repeat(4, 1fr); }
  .pgt-section { padding-block: calc(var(--pgt-space-unit) * 9); }
}
@media (min-width: 960px) {
  .pgt-hero__grid { grid-template-columns: 5fr 6fr; }
  .pgt-split { grid-template-columns: 1fr 1fr; }
  .pgt-split--form { grid-template-columns: 2fr 3fr; align-items: start; }
  .pgt-prose-grid { grid-template-columns: 1fr 1fr; }
  .pgt-card-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .pgt-steps { grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); }
  .pgt-steps--compact { grid-template-columns: 1fr; }
  .pgt-portal__layout { grid-template-columns: 14rem 1fr; align-items: start; }
  .pgt-portal__nav ul { flex-direction: column; }
}
@media (min-width: 1280px) {
  /* the full header navigation; below 1280px it sits behind the menu button */
  .pgt-js .pgt-nav-toggle { display: none; }
  .pgt-nav, .pgt-js .pgt-nav:not(.is-open) {
    display: flex; flex-direction: row; flex-basis: auto; flex: 1; align-items: center; justify-content: space-between;
    padding-bottom: 0; margin-left: calc(var(--pgt-space-unit) * 2);
  }
  .pgt-nav__list { flex-direction: row; align-items: center; }
  .pgt-menu__list {
    position: absolute; top: 100%; left: 0; z-index: 60; min-width: 14rem;
    background: var(--pgt-color-bg); border: 1px solid var(--pgt-color-border);
    border-radius: var(--pgt-radius-m); box-shadow: var(--pgt-shadow-2);
  }
  .pgt-menu__list--end { left: auto; right: 0; }
  .pgt-container { padding-inline: calc(var(--pgt-space-unit) * 4); }
  .pgt-hero { padding-block: calc(var(--pgt-space-unit) * 10); }
}

/* ------------------------------------------------------------------ motion and print */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}
@media print {
  .pgt-header, .pgt-footer, .pgt-skip-link, .pgt-nav-toggle, .pgt-actions, .pgt-cta, .pgt-btn { display: none !important; }
  body { background: #ffffff; color: #000000; font-size: 11pt; }
  .pgt-section, .pgt-section--alt { padding-block: 1rem; background: none; }
  .pgt-card, .pgt-figure img { box-shadow: none; break-inside: avoid; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; }
}