/* Follow the Question: component styles. Owner: E2.
   Cards, option boards, dial boards, quiz, flashcards, defend, diagrams and the level page.
   Mobile first. Colours come from tokens.css. Classes are prefixed g-. Container queries (named "lvl")
   adapt layouts to the width of the article, not the window, because the sidebar and rail take space. */

/* ==========================================================================
   0. Scope, tone helpers, primitives
   ========================================================================== */

.g-scope,
.g-zoom {
  --g-accent: var(--accent);
  --g-accent-text: var(--accent-text, color-mix(in srgb, var(--accent) 68%, var(--text)));
  --g-accent-soft: var(--accent-soft, color-mix(in srgb, var(--accent) 13%, var(--surface)));
  --g-accent-soft-2: var(--accent-soft-2, color-mix(in srgb, var(--accent) 24%, var(--surface)));
  --g-accent-line: var(--accent-line, color-mix(in srgb, var(--accent) 50%, var(--border)));
  --g-on-accent: var(--on-accent, #ffffff);
  --ok-ink: color-mix(in srgb, var(--ok) 78%, var(--text));
  --warn-ink: color-mix(in srgb, var(--warn) 78%, var(--text));
  --bad-ink: color-mix(in srgb, var(--bad) 78%, var(--text));
  --info-ink: color-mix(in srgb, var(--info) 78%, var(--text));
  --preview-ink: color-mix(in srgb, var(--preview) 78%, var(--text));
  --tk-c: #566080;
  --tk-k: #6d28d9;
  --tk-s: #0f766e;
  --tk-n: #9a3412;
  --tk-l: #be185d;
}

[data-theme="dark"] .g-scope,
[data-theme="dark"] .g-zoom {
  --tk-c: #93a0c8;
  --tk-k: #c4b5fd;
  --tk-s: #5eead4;
  --tk-n: #fdba74;
  --tk-l: #f9a8d4;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .g-scope,
  :root:not([data-theme="light"]) .g-zoom {
    --tk-c: #93a0c8;
    --tk-k: #c4b5fd;
    --tk-s: #5eead4;
    --tk-n: #fdba74;
    --tk-l: #f9a8d4;
  }
}

.g-scope [hidden] { display: none !important; }
.g-scope p:last-child { margin-bottom: 0; }
.g-scope li + li { margin-top: 0; }
.g-scope h3, .g-scope h4 { margin-bottom: 0; }

.g-scope kbd {
  display: inline-block;
  padding: 0.05em 0.45em;
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--surface-2);
  color: var(--text);
  font-size: 0.8em;
  line-height: 1.4;
}

.g-ic { display: inline-flex; align-items: center; justify-content: center; flex: none; line-height: 1; }
.g-ic svg { display: block; }

.g-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--g-accent-text);
}

.g-board__title {
  margin: 0.1rem 0 0;
  font-size: var(--fs-xl);
  line-height: 1.25;
  letter-spacing: -0.015em;
}

/* buttons */
.g-btn {
  --b-bg: var(--surface);
  --b-fg: var(--text);
  --b-bd: var(--border-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--b-bd);
  border-radius: var(--r-md);
  background: var(--b-bg);
  color: var(--b-fg);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 650;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.g-btn:hover:not(:disabled) { --b-bg: var(--surface-2); --b-bd: var(--g-accent-line, var(--border-strong)); }
.g-btn:active:not(:disabled) { transform: translateY(1px); }
.g-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.g-btn--primary {
  --b-bg: var(--g-accent);
  --b-fg: var(--g-on-accent);
  --b-bd: transparent;
  box-shadow: 0 1px 2px rgba(10, 14, 30, 0.2), 0 4px 12px color-mix(in srgb, var(--g-accent) 28%, transparent);
}
.g-btn--primary:hover:not(:disabled) { --b-bg: color-mix(in srgb, var(--g-accent) 86%, #000); --b-bd: transparent; }
.g-btn--ghost { --b-bg: transparent; }
.g-btn--sm { min-height: 2rem; padding: 0.25rem 0.7rem; font-size: var(--fs-xs); border-radius: var(--r-sm); gap: 0.4rem; }
.g-btn--lg { min-height: 3rem; padding: 0.65rem 1.4rem; font-size: var(--fs-md); }
.g-btn--icon { padding-inline: 0.5rem; }
.g-btn--icon .g-btn__label:empty { display: none; }
.g-btn__label:empty { display: none; }

/* chips */
.g-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.12rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface-2);
  color: var(--text-2);
  font-size: var(--fs-xs);
  font-weight: 650;
  line-height: 1.5;
  white-space: nowrap;
}
.g-chip--ok { background: var(--ok-soft); color: var(--ok-ink); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.g-chip--warn { background: var(--warn-soft); color: var(--warn-ink); border-color: color-mix(in srgb, var(--warn) 35%, transparent); }
.g-chip--bad { background: var(--bad-soft); color: var(--bad-ink); border-color: color-mix(in srgb, var(--bad) 35%, transparent); }
.g-chip--info { background: var(--info-soft); color: var(--info-ink); border-color: color-mix(in srgb, var(--info) 35%, transparent); }
.g-chip--preview { background: var(--preview-soft); color: var(--preview-ink); border-color: color-mix(in srgb, var(--preview) 35%, transparent); }
.g-chip--accent { background: var(--g-accent-soft); color: var(--g-accent-text); border-color: var(--g-accent-line); }

/* shared bars, selects, skeleton, takeaway strip */
.g-bar { height: 0.5rem; border-radius: var(--r-pill); background: var(--surface-3); overflow: hidden; }
.g-bar__fill { display: block; height: 100%; width: 0; border-radius: inherit; background: var(--g-accent); transition: width 0.45s var(--ease); }
.g-bar.is-good .g-bar__fill { background: var(--ok); }

.g-select {
  width: 100%;
  min-height: 2.5rem;
  padding: 0.4rem 2.4rem 0.4rem 0.8rem;
  border: 2px solid var(--border-strong);
  border-radius: var(--r-md);
  background-color: var(--surface);
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%), linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 1.2rem) 52%, calc(100% - 0.9rem) 52%;
  background-size: 0.32rem 0.32rem, 0.32rem 0.32rem;
  background-repeat: no-repeat;
  color: var(--text);
  font: inherit;
  font-size: var(--fs-sm);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease);
}
.g-select:hover:not(:disabled) { border-color: var(--g-accent-line); }
.g-select:focus-visible { border-color: var(--g-accent); }
.g-select:disabled { opacity: 1; cursor: default; background-color: var(--surface-2); }

.g-skeleton { display: grid; gap: 0.7rem; padding: var(--sp-4); }
.g-skeleton span { display: block; height: 1rem; border-radius: 6px; background: linear-gradient(90deg, var(--surface-2) 25%, var(--surface-3) 50%, var(--surface-2) 75%); background-size: 200% 100%; animation: g-shimmer 1.4s linear infinite; }
.g-skeleton span:nth-child(2) { width: 82%; }
.g-skeleton span:nth-child(3) { width: 58%; }
@keyframes g-shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

.g-takeaway {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.9rem 1.1rem;
  border-radius: var(--r-md);
  background: var(--g-accent-soft);
  border: 1px solid var(--g-accent-line);
  color: var(--text);
}
.g-takeaway > .g-ic { margin-top: 0.2rem; color: var(--g-accent-text); }

.g-no-scroll { overflow: hidden; }

/* citation badge (also used outside .g-scope, so every colour has a fallback) */
.g-cite {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.25rem;
  height: 1.25rem;
  margin-inline: 0.15rem;
  padding: 0 0.3rem;
  border: 1px solid var(--g-accent-line, var(--border-strong));
  border-radius: var(--r-pill);
  background: var(--g-accent-soft, var(--surface-2));
  color: var(--g-accent-text, var(--link));
  font-size: 0.7rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  vertical-align: 0.2em;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
a.g-cite:hover { background: var(--g-accent, var(--link)); color: var(--g-on-accent, #fff); transform: translateY(-1px); }
.g-cite--missing { border-style: dashed; color: var(--muted); }

/* ==========================================================================
   1. Level page
   ========================================================================== */

.g-lvl {
  container: lvl / inline-size;
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  width: 100%;
  max-width: var(--wide-w);
  min-width: 0;
  margin-inline: auto;
}
.g-lvl > * { min-width: 0; }
.g-blk--prose { width: 100%; max-width: var(--read-w); }
.g-blk--wide { width: 100%; }

.g-lvl__key {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.9rem;
  border: 1px dashed var(--g-accent-line);
  border-radius: var(--r-md);
  background: var(--g-accent-soft);
  font-size: var(--fs-sm);
  color: var(--text-2);
}
.g-key__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.12rem 0.6rem;
  border-radius: var(--r-pill);
  background: var(--g-accent);
  color: var(--g-on-accent);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* brief card */
.g-brief {
  position: relative;
  padding: var(--sp-5) var(--sp-5) var(--sp-5) calc(var(--sp-5) + 6px);
  border: 1px solid var(--g-accent-line);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--g-accent-soft) 0%, var(--surface) 75%);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.g-brief::before { content: ''; position: absolute; inset: 0 auto 0 0; width: 6px; background: var(--g-accent); }
.g-brief__label {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.5rem;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--g-accent-text);
}
.g-brief__text { font-size: var(--fs-lg); line-height: 1.55; color: var(--text); max-width: var(--read-w); }

/* headings with copy-link anchor */
.g-hwrap { display: flex; align-items: baseline; flex-wrap: wrap; gap: 0.25rem 0.5rem; margin-bottom: calc(var(--sp-2) * -1); }
.g-hwrap--2 { margin-top: var(--sp-5); }
.g-hwrap--3 { margin-top: var(--sp-3); }
.g-h { margin: 0; letter-spacing: -0.018em; scroll-margin-top: calc(var(--topbar-h) + 1rem); }
.g-h--2 { position: relative; padding-top: 0.95rem; font-size: clamp(1.35rem, 1.05rem + 1vw, 1.75rem); line-height: 1.2; }
.g-h--2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2.5rem;
  height: 4px;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--g-accent), color-mix(in srgb, var(--g-accent) 35%, var(--brand-2)));
}
.g-h--3 { font-size: var(--fs-lg); line-height: 1.3; }
.g-h__anchor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--r-sm);
  color: var(--muted);
  opacity: 0;
  text-decoration: none;
  transition: opacity var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.g-hwrap:hover .g-h__anchor, .g-hwrap:focus-within .g-h__anchor, .g-h__anchor:focus-visible { opacity: 1; }
.g-h__anchor:hover { background: var(--surface-2); color: var(--g-accent-text); }
@media (hover: none) { .g-h__anchor { opacity: 0.55; } }
.g-h__toast { font-size: var(--fs-xs); font-weight: 650; color: var(--ok-ink); }
.g-h__toast:empty { display: none; }

.g-p { color: var(--text); }
.g-p p { margin-bottom: 0.9em; }
.g-p p:last-child { margin-bottom: 0; }
.g-p a { font-weight: 550; }

/* lists */
.g-list { display: flex; flex-direction: column; gap: 0.4rem; margin: 0; padding-left: 1.35rem; }
.g-list li { padding-left: 0.2rem; }
.g-list--ul li::marker { color: var(--g-accent); }
.g-list--ol li::marker { color: var(--g-accent-text); font-weight: 750; }
.g-list--checks { list-style: none; padding-left: 0; gap: 0.55rem; }
.g-list--checks li { display: flex; align-items: flex-start; gap: 0.65rem; padding-left: 0; }
.g-list__check {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 1.4rem;
  height: 1.4rem;
  margin-top: 0.12rem;
  border: 1px solid color-mix(in srgb, var(--ok) 38%, transparent);
  border-radius: 50%;
  background: var(--ok-soft);
  color: var(--ok-ink);
}

/* callouts */
.g-callout {
  --t: var(--muted);
  --t-soft: var(--surface-2);
  --t-ink: var(--text-2);
  position: relative;
  padding: var(--sp-4) var(--sp-4) var(--sp-4) calc(var(--sp-4) + 5px);
  border: 1px solid color-mix(in srgb, var(--t) 30%, var(--border));
  border-radius: var(--r-md);
  background: var(--t-soft);
  overflow: hidden;
}
.g-callout::before { content: ''; position: absolute; inset: 0 auto 0 0; width: 5px; background: var(--t); }
.g-callout--tip { --t: var(--ok); --t-soft: var(--ok-soft); --t-ink: var(--ok-ink); }
.g-callout--gotcha { --t: var(--warn); --t-soft: var(--warn-soft); --t-ink: var(--warn-ink); }
.g-callout--warn { --t: var(--bad); --t-soft: var(--bad-soft); --t-ink: var(--bad-ink); }
.g-callout--preview { --t: var(--preview); --t-soft: var(--preview-soft); --t-ink: var(--preview-ink); }
.g-callout--interview { --t: var(--g-accent); --t-soft: var(--g-accent-soft); --t-ink: var(--g-accent-text); }
.g-callout--why { --t: var(--info); --t-soft: var(--info-soft); --t-ink: var(--info-ink); }
.g-callout__head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.2rem 0.55rem; margin-bottom: 0.35rem; }
.g-callout__icon { color: var(--t-ink); }
.g-callout__kind { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; color: var(--t-ink); }
.g-callout__title { font-size: var(--fs-md); color: var(--text); }
.g-callout__body { color: var(--text); }
.g-callout__body p { margin-bottom: 0.7em; }
.g-callout__body p:last-child { margin-bottom: 0; }

/* sections: quiz, defend, takeaways, references */
.g-sec { display: flex; flex-direction: column; gap: var(--sp-4); margin-top: var(--sp-5); scroll-margin-top: calc(var(--topbar-h) + 1rem); }
.g-sec__head { display: flex; align-items: center; gap: 0.9rem; }
.g-sec__icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--g-accent-line);
  border-radius: var(--r-md);
  background: var(--g-accent-soft);
  color: var(--g-accent-text);
}
.g-sec__title { margin: 0.1rem 0 0; font-size: clamp(1.3rem, 1.05rem + 0.9vw, 1.65rem); line-height: 1.2; }
.g-sec__body { min-width: 0; }

.g-takeaways {
  list-style: none;
  display: grid;
  gap: 0.6rem;
  margin: 0;
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--g-accent-line);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--g-accent-soft), var(--surface) 80%);
  box-shadow: var(--shadow-1);
}
.g-takeaways li { display: flex; gap: 0.7rem; align-items: flex-start; font-weight: 550; }
.g-takeaways__icon {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 1.5rem;
  height: 1.5rem;
  margin-top: 0.08rem;
  border-radius: 50%;
  background: var(--g-accent);
  color: var(--g-on-accent);
}

.g-refs { list-style: none; display: grid; gap: 0.6rem; margin: 0; padding: 0; }
.g-ref {
  display: flex;
  gap: 0.85rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.g-ref:hover { border-color: var(--g-accent-line); transform: translateY(-1px); }
.g-ref__n {
  display: grid;
  place-items: center;
  flex: none;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  background: var(--g-accent-soft);
  color: var(--g-accent-text);
  border: 1px solid var(--g-accent-line);
  font-size: var(--fs-xs);
  font-weight: 750;
}
.g-ref__main { min-width: 0; display: flex; flex-direction: column; gap: 0.3rem; }
.g-ref__title { display: inline-flex; align-items: center; gap: 0.35rem; font-weight: 650; overflow-wrap: anywhere; }
.g-ref__ext { color: var(--muted); }
.g-ref__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem 0.6rem; font-size: var(--fs-xs); color: var(--muted); }
.g-ref__note { margin: 0; font-size: var(--fs-sm); color: var(--text-2); }

/* footer: mark as done + pager */
.g-lvl__footer { display: flex; flex-direction: column; gap: var(--sp-5); margin-top: var(--sp-5); padding-top: var(--sp-5); border-top: 1px solid var(--border); }
.g-done { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1rem; }
.g-done__state { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 700; color: var(--ok-ink); }
.g-done__state:empty { display: none; }
.g-done__hint { font-size: var(--fs-sm); color: var(--muted); }
.g-pager { display: grid; grid-template-columns: 1fr; gap: 0.75rem; }
.g-pager__link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow-1);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.g-pager__link:hover { border-color: var(--g-accent); transform: translateY(-2px); box-shadow: var(--shadow-2); }
.g-pager__link:active { transform: translateY(0); }
.g-pager__dir { display: inline-flex; align-items: center; gap: 0.4rem; font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--g-accent-text); }
.g-pager__title { font-weight: 650; line-height: 1.3; }
.g-pager__next { text-align: right; }
.g-pager__next .g-pager__dir { justify-content: flex-end; }
@container lvl (min-width: 34rem) { .g-pager { grid-template-columns: 1fr 1fr; } }

/* ==========================================================================
   2. Tables
   ========================================================================== */

.g-table-wrap {
  max-height: min(75vh, 46rem);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.g-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: var(--fs-sm); line-height: 1.5; }
.g-table caption { caption-side: top; padding: 0.8rem 1rem; text-align: left; font-size: var(--fs-md); font-weight: 700; color: var(--text); }
.g-table th, .g-table td { min-width: 7.5rem; padding: 0.7rem 1rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--border); }
.g-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--surface-2);
  border-bottom: 2px solid var(--border-strong);
  font-size: var(--fs-xs);
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
}
.g-table tbody th { position: sticky; left: 0; z-index: 1; background: var(--surface); font-weight: 650; color: var(--text); box-shadow: 1px 0 0 var(--border); }
.g-table thead th:first-child { left: 0; z-index: 3; box-shadow: 1px 0 0 var(--border); }
.g-table tbody tr:nth-child(even) > * { background: color-mix(in srgb, var(--surface-2) 55%, var(--surface)); }
.g-table tbody tr:hover > * { background: var(--g-accent-soft); }
.g-table tbody tr:last-child > * { border-bottom: 0; }
.g-table .is-hl { background: var(--g-accent-soft); }
.g-table tbody tr:nth-child(even) > .is-hl { background: color-mix(in srgb, var(--g-accent-soft) 80%, var(--surface-2)); }
.g-table thead th.is-hl { background: var(--g-accent-soft-2); color: var(--g-accent-text); box-shadow: inset 0 3px 0 var(--g-accent); }
.g-table--compact th, .g-table--compact td { padding: 0.4rem 0.7rem; min-width: 5.5rem; }

/* ==========================================================================
   3. Compare (options board)
   ========================================================================== */

.g-cmp { display: flex; flex-direction: column; gap: var(--sp-4); }
.g-cmp__head { display: flex; flex-direction: column; gap: 0.35rem; max-width: var(--read-w); }
.g-cmp__intro { color: var(--text-2); }
.g-cmp__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: var(--sp-4); }
.g-optcard {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  min-width: 0;
  padding: var(--sp-4);
  border: 1px solid var(--border);
  border-top: 4px solid var(--g-accent);
  border-radius: var(--r-md);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.g-optcard:hover { transform: translateY(-2px); box-shadow: var(--shadow-2); border-color: var(--g-accent-line); border-top-color: var(--g-accent); }
.g-optcard__head { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.g-optcard__letter {
  display: grid;
  place-items: center;
  flex: none;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--g-accent);
  color: var(--g-on-accent);
  font-size: var(--fs-sm);
  font-weight: 800;
}
.g-optcard__name { flex: 1 1 8rem; margin: 0; font-size: var(--fs-lg); line-height: 1.25; }
.g-optcard__summary { color: var(--text-2); font-size: var(--fs-sm); }
.g-optcard__meta { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0; }
.g-optcard__meta > div { display: inline-flex; gap: 0.4rem; align-items: baseline; padding: 0.15rem 0.6rem; border-radius: var(--r-pill); background: var(--surface-2); border: 1px solid var(--border); font-size: var(--fs-xs); }
.g-optcard__meta dt { margin: 0; color: var(--muted); font-weight: 600; }
.g-optcard__meta dd { margin: 0; font-weight: 700; color: var(--text); }
.g-optcard__label { margin-bottom: 0.3rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.g-points { list-style: none; display: grid; gap: 0.4rem; margin: 0; padding: 0; font-size: var(--fs-sm); }
.g-points li { display: flex; align-items: flex-start; gap: 0.55rem; }
.g-points__icon { display: inline-grid; place-items: center; flex: none; width: 1.25rem; height: 1.25rem; margin-top: 0.1rem; border-radius: 50%; }
.g-points--pro .g-points__icon { background: var(--ok-soft); color: var(--ok-ink); border: 1px solid color-mix(in srgb, var(--ok) 35%, transparent); }
.g-points--con .g-points__icon { background: var(--bad-soft); color: var(--bad-ink); border: 1px solid color-mix(in srgb, var(--bad) 35%, transparent); }
.g-when { padding: 0.7rem 0.85rem; border-radius: var(--r-sm); font-size: var(--fs-sm); border: 1px solid transparent; }
.g-optcard__points + .g-when, .g-optcard__summary + .g-when, .g-optcard__head + .g-when { margin-top: auto; }
.g-when__label { display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.2rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; }
.g-when__text p { margin-bottom: 0.4em; }
.g-when--best { background: color-mix(in srgb, var(--ok-soft) 75%, var(--surface)); border-color: color-mix(in srgb, var(--ok) 28%, transparent); }
.g-when--best .g-when__label { color: var(--ok-ink); }
.g-when--avoid { background: color-mix(in srgb, var(--bad-soft) 75%, var(--surface)); border-color: color-mix(in srgb, var(--bad) 28%, transparent); }
.g-when--avoid .g-when__label { color: var(--bad-ink); }

/* ==========================================================================
   4. Scenario, flow, stats, formula, failure modes
   ========================================================================== */

.g-scn { display: flex; flex-direction: column; gap: var(--sp-4); padding: var(--sp-5); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); }
.g-scn__cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: var(--sp-3); }
.g-scn__col { padding: var(--sp-4); border-radius: var(--r-md); border: 1px solid transparent; }
.g-scn__col--known { background: var(--info-soft); border-color: color-mix(in srgb, var(--info) 28%, transparent); }
.g-scn__col--ask { background: var(--g-accent-soft); border-color: var(--g-accent-line); }
.g-scn__label { display: flex; align-items: center; gap: 0.45rem; margin-bottom: 0.6rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; }
.g-scn__col--known .g-scn__label { color: var(--info-ink); }
.g-scn__col--ask .g-scn__label { color: var(--g-accent-text); }
.g-scn__list { display: grid; gap: 0.5rem; margin: 0; padding-left: 1.2rem; }
.g-scn__col--known .g-scn__list li::marker { color: var(--info); }
.g-scn__col--ask .g-scn__list li::marker { color: var(--g-accent); }
.g-scn__tension { display: flex; gap: 0.7rem; align-items: flex-start; padding: 0.8rem 1rem; border-radius: var(--r-md); background: var(--warn-soft); border: 1px solid color-mix(in srgb, var(--warn) 32%, transparent); }
.g-scn__tension > .g-ic { margin-top: 0.15rem; color: var(--warn-ink); }

.g-flow { display: flex; flex-direction: column; gap: var(--sp-3); }
.g-flow__list { list-style: none; display: flex; flex-direction: column; margin: 0; padding: 0; }
.g-flow__step { position: relative; display: grid; grid-template-columns: 2.4rem minmax(0, 1fr); gap: 0.9rem; padding-bottom: var(--sp-4); }
.g-flow__step:last-child { padding-bottom: 0; }
.g-flow__step:not(:last-child)::before { content: ''; position: absolute; left: calc(1.2rem - 1px); top: 2.4rem; bottom: 0.2rem; width: 2px; background: linear-gradient(var(--g-accent-line), var(--border)); }
.g-flow__node {
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: var(--g-accent);
  color: var(--g-on-accent);
  font-weight: 800;
  box-shadow: 0 0 0 4px var(--g-accent-soft);
}
.g-flow__card { padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); }
.g-flow__title { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.6rem; font-weight: 700; }
.g-flow__text { margin-top: 0.3rem; font-size: var(--fs-sm); color: var(--text-2); }
@container lvl (min-width: 46rem) {
  .g-flow--h .g-flow__list { flex-direction: row; align-items: stretch; }
  .g-flow--h .g-flow__step { flex: 1 1 0; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; gap: 0.75rem; padding: 0 0 0 0; }
  .g-flow--h .g-flow__step:not(:last-child)::before { left: 2.6rem; right: 0.2rem; top: calc(1.2rem - 1px); bottom: auto; width: auto; height: 2px; }
  .g-flow--h .g-flow__card { margin-right: 0.75rem; height: 100%; }
  .g-flow--h .g-flow__step:last-child .g-flow__card { margin-right: 0; }
}

.g-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 11.5rem), 1fr)); gap: 0.75rem; margin: 0; }
.g-tile {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-top: 3px solid var(--g-accent);
  border-radius: var(--r-md);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.g-tile__value { order: -1; margin: 0; font-size: var(--fs-2xl); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; color: var(--text); overflow-wrap: anywhere; }
.g-tile__label { margin: 0; font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
.g-tile__note { margin: 0.2rem 0 0; font-size: var(--fs-sm); color: var(--text-2); }

.g-formula { display: flex; flex-direction: column; gap: var(--sp-3); padding: var(--sp-5); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); }
.g-formula__expr {
  margin: 0;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-left: 4px solid var(--g-accent);
  border-radius: var(--r-md);
  background: var(--code-bg);
  font-size: clamp(0.95rem, 0.85rem + 0.5vw, 1.15rem);
  line-height: 1.6;
  overflow-x: auto;
  color: var(--text);
}
.g-formula__expr code { padding: 0; border: 0; background: none; font-size: inherit; }
.g-formula__vars { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: 0.5rem 1rem; margin: 0; }
.g-formula__vars > div { display: flex; gap: 0.6rem; align-items: baseline; }
.g-formula__vars dt { margin: 0; flex: none; }
.g-formula__vars dd { margin: 0; font-size: var(--fs-sm); color: var(--text-2); }
.g-formula__example { padding: 0.8rem 1rem; border-radius: var(--r-md); background: var(--g-accent-soft); border: 1px solid var(--g-accent-line); }
.g-formula__example-label { margin-bottom: 0.2rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--g-accent-text); }

.g-fail { display: flex; flex-direction: column; gap: var(--sp-3); }
.g-fail__list { display: grid; gap: var(--sp-3); }
.g-fail__item { display: grid; grid-template-columns: minmax(0, 1fr); border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); overflow: hidden; }
.g-fail__cell { padding: 0.9rem 1rem; border-top: 1px solid var(--border); }
.g-fail__cell:first-child { border-top: 0; }
.g-fail__label { display: flex; align-items: center; gap: 0.4rem; margin-bottom: 0.3rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; }
.g-fail__text { font-size: var(--fs-sm); }
.g-fail__cell--symptom { background: color-mix(in srgb, var(--bad-soft) 45%, var(--surface)); }
.g-fail__cell--symptom .g-fail__label { color: var(--bad-ink); }
.g-fail__cell--cause { background: color-mix(in srgb, var(--warn-soft) 40%, var(--surface)); }
.g-fail__cell--cause .g-fail__label { color: var(--warn-ink); }
.g-fail__cell--fix { background: color-mix(in srgb, var(--ok-soft) 45%, var(--surface)); }
.g-fail__cell--fix .g-fail__label { color: var(--ok-ink); }
@container lvl (min-width: 40rem) {
  .g-fail__item { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .g-fail__cell { border-top: 0; border-left: 1px solid var(--border); }
  .g-fail__cell:first-child { border-left: 0; }
}

/* ==========================================================================
   5. Code
   ========================================================================== */

.g-code { margin: 0; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--code-bg); box-shadow: var(--shadow-1); overflow: hidden; }
.g-code__bar { display: flex; align-items: center; gap: 0.6rem; padding: 0.3rem 0.5rem 0.3rem 0.9rem; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--code-bg) 55%, var(--surface)); }
.g-code__lang { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.g-code__title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: var(--fs-sm); font-weight: 600; color: var(--text-2); }
.g-code__copy { margin-left: auto; }
.g-code__copy.is-done { --b-fg: var(--ok-ink); --b-bd: color-mix(in srgb, var(--ok) 45%, transparent); }
.g-code__pre { margin: 0; padding: var(--sp-4); overflow: auto; font-size: 0.875rem; line-height: 1.65; tab-size: 2; color: var(--text); max-height: 32rem; }
.g-code__pre code { padding: 0; border: 0; background: none; font-size: inherit; color: inherit; white-space: pre; }
.g-code__caption { padding: 0.55rem 0.9rem; border-top: 1px solid var(--border); font-size: var(--fs-sm); color: var(--text-2); background: var(--surface); }
.tk-c { color: var(--tk-c); font-style: italic; }
.tk-k { color: var(--tk-k); font-weight: 600; }
.tk-s { color: var(--tk-s); }
.tk-n { color: var(--tk-n); }
.tk-l { color: var(--tk-l); }

/* ==========================================================================
   6. Tabs and accordion
   ========================================================================== */

.g-tabs { border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); overflow: hidden; }
.g-tabs__list { display: flex; gap: 0.25rem; padding: 0.35rem 0.5rem 0; overflow-x: auto; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.g-tabs__tab {
  flex: none;
  min-height: 2.5rem;
  padding: 0.45rem 1rem;
  border: 0;
  border-bottom: 3px solid transparent;
  border-radius: var(--r-sm) var(--r-sm) 0 0;
  background: transparent;
  color: var(--text-2);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 650;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.g-tabs__tab:hover { color: var(--text); background: var(--surface-3); }
.g-tabs__tab[aria-selected="true"] { color: var(--text); background: var(--surface); border-bottom-color: var(--g-accent); }
.g-tabs__panel { display: flex; flex-direction: column; gap: var(--sp-4); padding: var(--sp-4); min-width: 0; }
.g-tabs__printlabel { display: none; font-weight: 700; }

.g-accs { display: grid; gap: 0.6rem; }
.g-acc { border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); transition: border-color var(--dur) var(--ease); }
.g-acc:hover { border-color: var(--g-accent-line); }
.g-acc__sum { display: flex; align-items: center; gap: 0.6rem; padding: 0.85rem 1rem; list-style: none; cursor: pointer; font-weight: 650; border-radius: var(--r-md); }
.g-acc__sum::-webkit-details-marker { display: none; }
.g-acc__chev { display: inline-flex; color: var(--g-accent-text); transition: transform var(--dur) var(--ease); }
.g-acc[open] > .g-acc__sum .g-acc__chev { transform: rotate(90deg); }
.g-acc[open] > .g-acc__sum { border-bottom: 1px solid var(--border); border-bottom-left-radius: 0; border-bottom-right-radius: 0; }
.g-acc__body { display: flex; flex-direction: column; gap: var(--sp-4); padding: var(--sp-4); }

/* ==========================================================================
   7. Lab card
   ========================================================================== */

.g-lab { display: flex; flex-direction: column; gap: var(--sp-3); }
.g-lab__card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.5rem 1rem;
  align-items: start;
  padding: var(--sp-5);
  border: 1px solid var(--g-accent-line);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--g-accent-soft), var(--surface) 75%);
  box-shadow: var(--shadow-1);
}
.g-lab__icon { display: grid; place-items: center; width: 3.25rem; height: 3.25rem; border-radius: var(--r-md); background: var(--g-accent); color: var(--g-on-accent); box-shadow: 0 6px 16px color-mix(in srgb, var(--g-accent) 30%, transparent); }
.g-lab__body { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.g-lab__blurb { margin: 0; font-size: var(--fs-sm); color: var(--text-2); }
.g-lab__actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.g-lab__host { min-height: 6rem; padding: var(--sp-4); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); overflow-x: auto; }

/* ==========================================================================
   8. Dial boards
   ========================================================================== */

.g-dials { border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); overflow: hidden; }
.g-dials__head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: var(--sp-3); padding: var(--sp-5) var(--sp-5) var(--sp-4); background: linear-gradient(180deg, var(--g-accent-soft), transparent); border-top: 4px solid var(--g-accent); }
.g-dials__headtext { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; flex: 1 1 16rem; }
.g-dials__prompt { color: var(--text-2); font-size: var(--fs-sm); }
.g-dials__controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr)); gap: var(--sp-4); padding: 0 var(--sp-5) var(--sp-4); }
.g-dial { min-width: 0; margin: 0; padding: 0; border: 0; }
.g-dial__label { display: block; width: 100%; margin-bottom: 0.4rem; padding: 0; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.g-seg { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface-2); }
.g-seg__opt { position: relative; flex: 1 1 auto; cursor: pointer; }
.g-seg__txt {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.3rem 0.8rem;
  border-radius: calc(var(--r-md) - 4px);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 650;
  line-height: 1.25;
  text-align: center;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.g-seg__opt:hover .g-seg__txt { background: var(--surface-3); color: var(--text); }
.g-seg__opt input:checked + .g-seg__txt { background: var(--g-accent); color: var(--g-on-accent); box-shadow: 0 1px 3px rgba(10, 14, 30, 0.25); }
.g-seg__opt input:focus-visible + .g-seg__txt { outline: 3px solid var(--focus); outline-offset: 2px; }

.g-leader {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  margin: 0 var(--sp-5) var(--sp-4);
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--g-accent-line);
  border-radius: var(--r-md);
  background: linear-gradient(135deg, var(--g-accent-soft), var(--surface));
}
.g-leader__icon { display: grid; place-items: center; flex: none; width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--g-accent); color: var(--g-on-accent); }
.g-leader__body { display: flex; flex-direction: column; gap: 0.25rem; min-width: 0; }
.g-leader__line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.2rem 0.7rem; }
.g-leader__label { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--g-accent-text); }
.g-leader__name { font-size: var(--fs-lg); line-height: 1.25; }
.g-leader__why { display: flex; flex-direction: column; gap: 0.15rem; font-size: var(--fs-sm); color: var(--text-2); }
.g-leader__dial { font-weight: 700; color: var(--text); margin-right: 0.25rem; }
.g-leader__note { font-size: var(--fs-xs); font-weight: 700; color: var(--g-accent-text); }
.g-leader.is-flash { animation: g-flash 1.1s var(--ease); }
@keyframes g-flash {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--g-accent) 55%, transparent); transform: scale(1); }
  35% { box-shadow: 0 0 0 8px color-mix(in srgb, var(--g-accent) 0%, transparent); transform: scale(1.012); }
  100% { box-shadow: 0 0 0 0 transparent; transform: scale(1); }
}

.g-rank { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; margin: 0; padding: 0 var(--sp-5) var(--sp-4); }
.g-rank__item { border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); overflow: hidden; transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.g-rank__item:hover { border-color: var(--g-accent-line); }
.g-rank__item.is-leader { border-color: var(--g-accent-line); box-shadow: 0 0 0 1px var(--g-accent-line), var(--shadow-1); }
.g-rank__item.is-new-leader { animation: g-glow 1.4s var(--ease); }
@keyframes g-glow {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--g-accent) 60%, transparent); }
  100% { box-shadow: 0 0 0 12px transparent; }
}
.g-rank__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  grid-template-areas: 'num main score chev' 'bar bar bar bar';
  align-items: center;
  gap: 0.55rem 0.85rem;
  width: 100%;
  padding: 0.8rem 1rem;
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease);
}
.g-rank__row:hover { background: var(--surface-2); }
.g-rank__row:focus-visible { outline-offset: -3px; }
.g-rank__num { grid-area: num; display: grid; place-items: center; min-width: 2.1rem; height: 2.1rem; padding: 0 0.3rem; border-radius: var(--r-pill); background: var(--surface-3); color: var(--text); font-weight: 800; font-variant-numeric: tabular-nums; }
.g-rank__item.is-leader .g-rank__num { background: var(--g-accent); color: var(--g-on-accent); }
.g-rank__main { grid-area: main; display: flex; flex-direction: column; gap: 0.1rem; min-width: 0; }
.g-rank__nameline { display: flex; flex-wrap: wrap; align-items: center; gap: 0.2rem 0.5rem; }
.g-rank__name { font-weight: 700; font-size: var(--fs-md); }
.g-rank__sum { font-size: var(--fs-sm); color: var(--text-2); }
.g-rank__score { grid-area: score; display: flex; flex-direction: column; align-items: flex-end; gap: 0.05rem; }
.g-rank__val { font-size: var(--fs-lg); font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; }
.g-rank__move { min-height: 1em; font-size: var(--fs-xs); font-weight: 750; font-variant-numeric: tabular-nums; }
.g-rank__move.is-up { color: var(--ok-ink); }
.g-rank__move.is-down { color: var(--bad-ink); }
.g-rank__chev { grid-area: chev; display: inline-flex; color: var(--muted); transition: transform var(--dur) var(--ease); }
.g-rank__row[aria-expanded="true"] .g-rank__chev { transform: rotate(180deg); }
.g-rank__bar { grid-area: bar; height: 8px; border-radius: var(--r-pill); background: var(--surface-3); overflow: hidden; }
.g-rank__fill { display: block; height: 100%; width: var(--w, 0%); border-radius: inherit; background: color-mix(in srgb, var(--g-accent) 50%, var(--surface-3)); transition: width 0.5s var(--ease), background-color var(--dur) var(--ease); }
.g-rank__item.is-leader .g-rank__fill { background: var(--g-accent); }
.g-rank__panel { padding: 0.25rem 1rem 1rem; border-top: 1px solid var(--border); background: var(--surface-2); }
.g-rank__panelhead { margin: 0.75rem 0 0.5rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.g-why { list-style: none; display: grid; gap: 0.5rem; margin: 0; padding: 0; }
.g-why__item { padding: 0.65rem 0.8rem; border: 1px solid var(--border); border-left: 4px solid var(--border-strong); border-radius: var(--r-sm); background: var(--surface); }
.g-why__item--pos { border-left-color: var(--ok); }
.g-why__item--neg { border-left-color: var(--bad); }
.g-why__head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 0.6rem; margin-bottom: 0.2rem; }
.g-why__dial { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
.g-why__val { font-weight: 650; font-size: var(--fs-sm); }
.g-why__score { margin-left: auto; padding: 0.05rem 0.55rem; border-radius: var(--r-pill); background: var(--surface-3); font-size: var(--fs-xs); font-weight: 800; font-variant-numeric: tabular-nums; }
.g-why__item--pos .g-why__score { background: var(--ok-soft); color: var(--ok-ink); }
.g-why__item--neg .g-why__score { background: var(--bad-soft); color: var(--bad-ink); }
.g-why__text { font-size: var(--fs-sm); color: var(--text-2); }
.g-dials > .g-takeaway { margin: 0 var(--sp-5) var(--sp-3); }
.g-dials__legend { margin: 0; padding: 0 var(--sp-5) var(--sp-4); font-size: var(--fs-xs); color: var(--muted); }

@container lvl (max-width: 32rem) {
  .g-dials__head, .g-dials__controls, .g-rank { padding-inline: var(--sp-3); }
  .g-leader { margin-inline: var(--sp-3); }
  .g-dials > .g-takeaway { margin-inline: var(--sp-3); }
  .g-dials__legend { padding-inline: var(--sp-3); }
  .g-rank__row { padding: 0.7rem 0.75rem; gap: 0.45rem 0.6rem; }
}

/* ==========================================================================
   9. Quiz
   ========================================================================== */

.g-quiz { display: flex; flex-direction: column; gap: var(--sp-4); }
.g-quiz__top { display: flex; flex-direction: column; gap: 0.6rem; }
.g-quiz__intro { margin: 0; font-size: var(--fs-sm); color: var(--text-2); }
.g-quiz__list { display: flex; flex-direction: column; gap: var(--sp-4); }

.g-pips { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0.2rem 0; }
.g-pip {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  border: 2px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text-2);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 750;
  cursor: pointer;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.g-pip:hover { transform: translateY(-2px); border-color: var(--g-accent); }
.g-pip__mark { position: absolute; top: -5px; right: -5px; display: grid; place-items: center; width: 1.05rem; height: 1.05rem; border-radius: 50%; color: var(--surface); font-size: 0.65rem; font-weight: 900; line-height: 1; }
.g-pip__mark:empty { display: none; }
.g-pip--correct { border-color: var(--ok); background: var(--ok-soft); color: var(--ok-ink); }
.g-pip--correct .g-pip__mark { background: var(--ok); }
.g-pip--wrong { border-color: var(--bad); background: var(--bad-soft); color: var(--bad-ink); }
.g-pip--wrong .g-pip__mark { background: var(--bad); }

.g-q {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-5);
  border: 1px solid var(--border);
  border-left: 5px solid var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
  transition: border-color var(--dur) var(--ease);
}
.g-q[data-state="correct"] { border-left-color: var(--ok); }
.g-q[data-state="wrong"] { border-left-color: var(--bad); }
.g-q:focus { outline: none; }
.g-q:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.g-q__head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1rem; }
.g-q__num { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.g-q__chips { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; }
.g-diff { display: inline-flex; align-items: center; padding: 0.1rem 0.5rem; border: 1px solid var(--border); border-radius: var(--r-pill); background: var(--surface-2); font-size: var(--fs-xs); letter-spacing: 0.15em; color: var(--text-2); }
.g-q__text { font-size: var(--fs-lg); font-weight: 600; line-height: 1.45; }
.g-q__text p { margin-bottom: 0.6em; }
.g-q__text p:last-child { margin-bottom: 0; }
.g-q__code { min-width: 0; }
.g-q__hint { margin: 0; font-size: var(--fs-xs); color: var(--muted); }
.g-q__body { min-width: 0; }

/* choice options. The label has no border of its own: .g-opt__ring draws it so the state can follow the input with sibling selectors */
.g-opts { display: flex; flex-direction: column; gap: 0.6rem; }
.g-opt {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.85rem;
  min-height: 3.4rem;
  padding: 0.8rem 1rem;
  cursor: pointer;
}
.g-opt__ring { position: absolute; inset: 0; z-index: -1; border: 2px solid var(--border); border-radius: var(--r-md); background: var(--surface); transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.g-opt:hover .g-opt__ring { border-color: var(--g-accent-line); background: var(--g-accent-soft); }
.g-opt input:checked ~ .g-opt__ring { border-color: var(--g-accent); background: var(--g-accent-soft); box-shadow: 0 0 0 1px var(--g-accent) inset; }
.g-opt input:focus-visible ~ .g-opt__ring { outline: 3px solid var(--focus); outline-offset: 2px; }
.g-opt__key {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 750;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.g-opt--multi .g-opt__key { border-radius: 8px; }
.g-opt input:checked ~ .g-opt__key { border-color: var(--g-accent); background: var(--g-accent); color: var(--g-on-accent); font-size: 0; }
.g-opt input:checked ~ .g-opt__key::after { content: '\2713'; font-size: 1rem; font-weight: 900; }
.g-opt__text { min-width: 0; line-height: 1.45; }
.g-opt__text code { white-space: normal; overflow-wrap: anywhere; }
.g-opt__mark:empty, .g-mark:empty { display: none; }
.g-opt__mark, .g-mark { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.12rem 0.55rem; border-radius: var(--r-pill); font-size: var(--fs-xs); font-weight: 750; line-height: 1.5; background: var(--surface-2); color: var(--text-2); }
.g-mark--correct { background: var(--ok-soft); color: var(--ok-ink); }
.g-mark--wrong { background: var(--bad-soft); color: var(--bad-ink); }
.g-mark--missed { background: var(--warn-soft); color: var(--warn-ink); }
.g-opt input:disabled ~ * { cursor: default; }
.g-opt.is-correct, .g-opt.is-wrong, .g-opt.is-missed { cursor: default; }
.g-opt.is-correct .g-opt__ring, .g-opt.is-correct input:checked ~ .g-opt__ring { border-color: var(--ok); background: var(--ok-soft); box-shadow: none; }
.g-opt.is-wrong .g-opt__ring, .g-opt.is-wrong input:checked ~ .g-opt__ring { border-color: var(--bad); background: var(--bad-soft); box-shadow: none; }
.g-opt.is-missed .g-opt__ring { border-style: dashed; border-color: var(--warn); background: var(--warn-soft); box-shadow: none; }
.g-opt.is-correct input:checked ~ .g-opt__key, .g-opt.is-correct .g-opt__key { border-color: var(--ok); background: var(--ok); color: var(--surface); }
.g-opt.is-wrong input:checked ~ .g-opt__key { border-color: var(--bad); background: var(--bad); color: var(--surface); }
.g-opt.is-wrong input:checked ~ .g-opt__key::after { content: '\2715'; }
.g-opt.is-missed .g-opt__key { border-color: var(--warn); }
.g-opt.is-correct .g-opt__key, .g-opt.is-missed .g-opt__key { font-size: var(--fs-sm); }
.g-opt.is-correct:not(:has(input:checked)) .g-opt__key { font-size: var(--fs-sm); }

/* ordering */
.g-ord { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; margin: 0; padding: 0; }
.g-ord__item { display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem 0.65rem; padding: 0.55rem 0.65rem; border: 2px solid var(--border); border-radius: var(--r-md); background: var(--surface); transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.g-ord__item:hover { border-color: var(--g-accent-line); }
.g-ord__item.is-dragging { position: relative; z-index: 2; border-color: var(--g-accent); background: var(--g-accent-soft); box-shadow: var(--shadow-2); }
.g-ord__grip { flex: none; padding: 0.35rem 0.25rem; color: var(--muted); font-size: 1.05rem; line-height: 1; letter-spacing: -0.2em; cursor: grab; touch-action: none; user-select: none; }
.g-ord__item.is-dragging .g-ord__grip { cursor: grabbing; }
.g-ord__pos { display: grid; place-items: center; flex: none; width: 1.9rem; height: 1.9rem; border-radius: 50%; background: var(--surface-3); color: var(--text); font-size: var(--fs-sm); font-weight: 800; font-variant-numeric: tabular-nums; }
.g-ord__text { flex: 1 1 11rem; min-width: 0; line-height: 1.4; }
.g-ord__btns { display: flex; gap: 0.25rem; margin-left: auto; }
.g-ord__up .g-ic { transform: rotate(180deg); }
.g-ord.is-locked .g-ord__grip { cursor: default; opacity: 0.4; }
.g-ord__item.is-correct { border-color: var(--ok); background: var(--ok-soft); }
.g-ord__item.is-wrong { border-color: var(--bad); background: var(--bad-soft); }

/* matching */
.g-match { display: flex; flex-direction: column; gap: 0.6rem; }
.g-match__row { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.5rem; padding: 0.75rem 0.9rem; border: 2px solid var(--border); border-radius: var(--r-md); background: var(--surface); transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease); }
.g-match__row.is-correct { border-color: var(--ok); background: var(--ok-soft); }
.g-match__row.is-wrong { border-color: var(--bad); background: var(--bad-soft); }
.g-match__l { font-weight: 650; }
.g-match__arrow { display: none; color: var(--muted); }
.g-match__r { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.6rem; min-width: 0; }
.g-match__r .g-select { flex: 1 1 100%; width: 100%; min-width: 0; max-width: 100%; text-overflow: ellipsis; }
@container lvl (min-width: 38rem) {
  .g-match__row { grid-template-columns: minmax(0, 1fr) auto minmax(0, 1.2fr); align-items: center; gap: 0.9rem; }
  .g-match__arrow { display: inline-flex; }
}

/* numeric */
.g-num { display: flex; flex-direction: column; gap: 0.6rem; }
.g-num__field { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; padding: 0.15rem; border-radius: var(--r-md); }
.g-num__input { width: min(100%, 15rem); min-height: 3.1rem; padding: 0 1rem; border: 2px solid var(--border-strong); border-radius: var(--r-md); background: var(--surface); color: var(--text); font: inherit; font-size: var(--fs-lg); font-weight: 650; font-variant-numeric: tabular-nums; transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.g-num__input:hover { border-color: var(--g-accent-line); }
.g-num__input:focus-visible { border-color: var(--g-accent); outline-offset: 1px; }
.g-num__input::placeholder { color: var(--muted); font-weight: 400; }
.g-num__field.is-correct .g-num__input { border-color: var(--ok); background: var(--ok-soft); }
.g-num__field.is-wrong .g-num__input { border-color: var(--bad); background: var(--bad-soft); }
.g-num__unit { font-weight: 650; color: var(--text-2); }
.g-num__hintrow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }
.g-num__hint { flex: 1 1 14rem; padding: 0.45rem 0.8rem; border-radius: var(--r-sm); background: var(--info-soft); border: 1px solid color-mix(in srgb, var(--info) 30%, transparent); font-size: var(--fs-sm); }
.g-num__msg { min-height: 0; font-size: var(--fs-sm); font-weight: 650; color: var(--bad-ink); }
.g-num__msg:empty { display: none; }

/* actions, feedback, answer key */
.g-q__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; }
.g-q__feedback { display: none; }
.g-q__feedback.is-visible { display: flex; flex-direction: column; gap: 0.7rem; padding: var(--sp-4); border: 1px solid transparent; border-radius: var(--r-md); animation: g-pop 0.28s var(--ease); }
.g-q__feedback.is-correct { background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.g-q__feedback.is-wrong { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 40%, transparent); }
@keyframes g-pop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.g-q__verdict { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; font-size: var(--fs-lg); }
.g-q__feedback.is-correct .g-q__verdict { color: var(--ok-ink); }
.g-q__feedback.is-wrong .g-q__verdict { color: var(--bad-ink); }
.g-q__answer { font-size: var(--fs-sm); color: var(--text); }
.g-q__answerlist { margin: 0.3rem 0 0; padding-left: 1.3rem; display: grid; gap: 0.2rem; }
.g-q__explain { color: var(--text); font-size: var(--fs-sm); }
.g-q__explain-label { margin-bottom: 0.2rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-2); }
.g-q__explain p { margin-bottom: 0.6em; }
.g-q__explain p:last-child { margin-bottom: 0; }
.g-q__src { font-size: var(--fs-xs); color: var(--text-2); }

.g-key { display: flex; flex-direction: column; gap: 0.5rem; padding: 0.85rem 1rem; border: 1px dashed var(--g-accent-line); border-radius: var(--r-md); background: var(--g-accent-soft); font-size: var(--fs-sm); }
.g-key .g-key__badge { align-self: flex-start; }
.g-key__explain p { margin-bottom: 0.5em; }
.g-key__explain p:last-child { margin-bottom: 0; }

/* summary */
.g-qsum { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-4); padding: var(--sp-4) var(--sp-5); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface-2); }
.g-qsum.is-done { border-color: var(--g-accent-line); background: linear-gradient(135deg, var(--g-accent-soft), var(--surface) 80%); box-shadow: var(--shadow-1); animation: g-pop 0.35s var(--ease); }
.g-qsum__progress { display: flex; flex-direction: column; gap: 0.5rem; flex: 1 1 14rem; }
.g-qsum__line { font-size: var(--fs-sm); color: var(--text-2); }
.g-qsum__line strong { color: var(--text); }
.g-qsum__body { display: flex; flex-direction: column; gap: 0.4rem; flex: 1 1 14rem; min-width: 0; }
.g-qsum__title { font-size: var(--fs-lg); font-weight: 750; }
.g-qsum__actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 0.4rem; }
.g-ring { --p: 0; position: relative; display: grid; place-items: center; flex: none; width: 5.25rem; height: 5.25rem; border-radius: 50%; background: conic-gradient(var(--ok) calc(var(--p) * 1%), var(--surface-3) 0); }
.g-ring::before { content: ''; position: absolute; inset: 0.55rem; border-radius: 50%; background: var(--surface); }
.g-ring__num { position: relative; font-size: var(--fs-lg); font-weight: 800; font-variant-numeric: tabular-nums; }

@container lvl (max-width: 32rem) {
  .g-q { padding: var(--sp-4); border-left-width: 4px; }
  .g-opt { gap: 0.65rem; padding: 0.7rem 0.75rem; }
  .g-opt__mark { grid-column: 2; justify-self: start; }
}

/* ==========================================================================
   10. Flashcards
   ========================================================================== */

.g-fc { container: fc / inline-size; display: flex; flex-direction: column; gap: var(--sp-5); width: 100%; max-width: 46rem; margin-inline: auto; }
.g-fc__filters { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.g-fc__filters:empty { display: none; }
.g-field { display: flex; flex-direction: column; gap: 0.3rem; flex: 1 1 12rem; min-width: 0; }
.g-field label { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.g-fc__main { display: flex; flex-direction: column; gap: var(--sp-4); min-width: 0; }
.g-fc__loading { border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); }
.g-fc__skeleton span { height: 1.4rem; }
.g-fc__home, .g-fc__summary { display: flex; flex-direction: column; gap: var(--sp-4); }
.g-fc__stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(6.5rem, 1fr)); gap: 0.75rem; }
.g-stat { padding: 0.85rem 0.75rem; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); text-align: center; }
.g-stat__value { font-size: var(--fs-2xl); font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums; }
.g-stat__label { margin-top: 0.15rem; font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
.g-stat--accent { border-color: var(--g-accent-line); background: var(--g-accent-soft); }
.g-stat--accent .g-stat__value { color: var(--g-accent-text); }
.g-stat--bad .g-stat__value { color: var(--bad-ink); }
.g-stat--warn .g-stat__value { color: var(--warn-ink); }
.g-stat--ok .g-stat__value { color: var(--ok-ink); }
.g-stat--info .g-stat__value { color: var(--info-ink); }
.g-fc__warn { display: flex; gap: 0.5rem; align-items: center; margin: 0; padding: 0.6rem 0.9rem; border-radius: var(--r-md); background: var(--warn-soft); border: 1px solid color-mix(in srgb, var(--warn) 32%, transparent); font-size: var(--fs-sm); }
.g-fc__cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-4); padding: var(--sp-5); border: 1px solid var(--g-accent-line); border-radius: var(--r-lg); background: linear-gradient(135deg, var(--g-accent-soft), var(--surface) 80%); box-shadow: var(--shadow-1); }
.g-fc__cta-title { font-size: var(--fs-xl); font-weight: 750; line-height: 1.25; }
.g-fc__cta-sub { margin-top: 0.2rem; font-size: var(--fs-sm); color: var(--text-2); }
.g-fc__more { display: flex; justify-content: center; }
.g-fc__empty { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; padding: var(--sp-7) var(--sp-5); border: 1px dashed var(--border-strong); border-radius: var(--r-lg); background: var(--surface); text-align: center; }
.g-fc__empty-icon { display: grid; place-items: center; width: 4.5rem; height: 4.5rem; margin-inline: auto; border-radius: 50%; background: var(--g-accent-soft); color: var(--g-accent-text); border: 1px solid var(--g-accent-line); }
.g-fc__empty-title { font-size: var(--fs-xl); font-weight: 750; }
.g-fc__empty-text { max-width: 32rem; margin: 0; color: var(--text-2); }
.g-fc__summary { align-items: center; text-align: center; padding: var(--sp-6) var(--sp-5); border: 1px solid var(--g-accent-line); border-radius: var(--r-lg); background: linear-gradient(160deg, var(--g-accent-soft), var(--surface) 70%); box-shadow: var(--shadow-1); }
.g-fc__summary .g-fc__stats { width: 100%; }
.g-fc__summary-title { margin: 0; font-size: var(--fs-2xl); }
.g-fc__summary-sub { margin: 0; color: var(--text-2); }
.g-fc__summary-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; }

.g-fc__progress { display: flex; flex-direction: column; gap: 0.5rem; }
.g-fc__progress-text { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; font-size: var(--fs-sm); color: var(--text-2); }
.g-fc__progress-text strong { color: var(--text); }
.g-fc__stage { display: flex; flex-direction: column; gap: 0.75rem; }
.g-fc__enter { animation: g-fc-in 0.32s var(--ease); }
@keyframes g-fc-in { from { opacity: 0; transform: translateX(18px); } to { opacity: 1; transform: none; } }
.g-fc__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; }
.g-boxes { display: inline-flex; gap: 3px; margin-left: auto; }
.g-boxes__dot { width: 0.6rem; height: 0.6rem; border: 1.5px solid var(--border-strong); border-radius: 50%; background: transparent; }
.g-boxes__dot.is-on { border-color: var(--g-accent); background: var(--g-accent); }

.g-fc__scene { perspective: 1400px; }
.g-fc__card { position: relative; display: grid; min-height: 17rem; transform-style: preserve-3d; transition: transform 0.6s var(--ease); }
.g-fc__card.is-flipped { transform: rotateY(180deg); }
.g-fc__face { grid-area: 1 / 1; display: flex; flex-direction: column; justify-content: center; gap: var(--sp-3); padding: var(--sp-6) var(--sp-5); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-2); backface-visibility: hidden; -webkit-backface-visibility: hidden; min-width: 0; }
.g-fc__front { border-top: 5px solid var(--g-accent); }
.g-fc__back { transform: rotateY(180deg); border-top: 5px solid var(--ok); background: linear-gradient(180deg, color-mix(in srgb, var(--ok-soft) 55%, var(--surface)), var(--surface) 55%); }
.g-fc__back:focus { outline: none; }
.g-fc__label { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.g-fc__front .g-fc__label { color: var(--g-accent-text); }
.g-fc__back .g-fc__label { color: var(--ok-ink); }
.g-fc__content { font-size: var(--fs-xl); font-weight: 550; line-height: 1.4; overflow-wrap: anywhere; }
.g-fc__back .g-fc__content { font-size: var(--fs-lg); font-weight: 500; }
.g-fc__content p { margin-bottom: 0.6em; }
.g-fc__content p:last-child { margin-bottom: 0; }
.g-fc__recap { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: var(--fs-sm); color: var(--muted); padding-bottom: 0.6rem; border-bottom: 1px solid var(--border); }
.g-fc__controls { display: flex; flex-direction: column; align-items: stretch; gap: 0.75rem; }
.g-fc__show { width: 100%; }
.g-fc__keys { margin: 0; text-align: center; font-size: var(--fs-xs); color: var(--muted); }

.g-grades { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; }
.g-grade {
  --gt: var(--muted);
  --gt-soft: var(--surface-2);
  --gt-ink: var(--text-2);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  min-height: 4.4rem;
  padding: 0.7rem 0.5rem 0.6rem;
  border: 2px solid color-mix(in srgb, var(--gt) 45%, var(--border));
  border-radius: var(--r-md);
  background: var(--surface);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.g-grade--bad { --gt: var(--bad); --gt-soft: var(--bad-soft); --gt-ink: var(--bad-ink); }
.g-grade--warn { --gt: var(--warn); --gt-soft: var(--warn-soft); --gt-ink: var(--warn-ink); }
.g-grade--ok { --gt: var(--ok); --gt-soft: var(--ok-soft); --gt-ink: var(--ok-ink); }
.g-grade--info { --gt: var(--info); --gt-soft: var(--info-soft); --gt-ink: var(--info-ink); }
.g-grade:hover { background: var(--gt-soft); border-color: var(--gt); transform: translateY(-2px); }
.g-grade:active { transform: translateY(0); }
.g-grade__key { position: absolute; top: 0.35rem; left: 0.45rem; display: grid; place-items: center; width: 1.25rem; height: 1.25rem; border-radius: 5px; background: var(--surface-2); border: 1px solid var(--border-strong); font-size: 0.7rem; font-weight: 750; color: var(--text-2); }
.g-grade__label { font-size: var(--fs-md); font-weight: 750; color: var(--gt-ink); }
.g-grade__hint { font-size: var(--fs-xs); color: var(--text-2); }
@container fc (min-width: 34rem) { .g-grades { grid-template-columns: repeat(4, minmax(0, 1fr)); } .g-fc__face { padding: var(--sp-7) var(--sp-6); } .g-fc__card { min-height: 19rem; } }

/* ==========================================================================
   11. Defend it
   ========================================================================== */

.g-df { display: flex; flex-direction: column; gap: var(--sp-5); min-width: 0; }
.g-df__ask { display: flex; gap: var(--sp-4); padding: var(--sp-5); border: 1px solid var(--g-accent-line); border-left: 6px solid var(--g-accent); border-radius: var(--r-lg); background: linear-gradient(135deg, var(--g-accent-soft), var(--surface) 70%); box-shadow: var(--shadow-1); }
.g-df__avatar { display: grid; place-items: center; flex: none; width: 3.25rem; height: 3.25rem; border-radius: 50%; background: var(--g-accent); color: var(--g-on-accent); box-shadow: 0 6px 16px color-mix(in srgb, var(--g-accent) 30%, transparent); }
.g-df__askbody { display: flex; flex-direction: column; gap: 0.5rem; min-width: 0; flex: 1; }
.g-df__who { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; color: var(--g-accent-text); }
.g-df__prompt { font-size: var(--fs-lg); font-weight: 600; line-height: 1.5; }
.g-df__prompt p { margin-bottom: 0.6em; }
.g-df__prompt p:last-child { margin-bottom: 0; }

.g-timer { display: grid; gap: 0.5rem; margin-top: 0.5rem; padding: 0.75rem 1rem; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); max-width: 30rem; }
.g-timer__head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 0.7rem; color: var(--text-2); }
.g-timer__time { font-family: var(--font-mono); font-size: var(--fs-xl); font-weight: 750; font-variant-numeric: tabular-nums; color: var(--text); }
.g-timer__note { font-size: var(--fs-xs); font-weight: 650; color: var(--muted); }
.g-timer__btns { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.g-timer.is-low .g-bar__fill { background: var(--warn); }
.g-timer.is-low .g-timer__time { color: var(--warn-ink); }
.g-timer.is-over .g-bar__fill { background: var(--bad); }
.g-timer.is-over .g-timer__time, .g-timer.is-over .g-timer__note { color: var(--bad-ink); }

.g-method { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; padding: 0; }
.g-method__step { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.3rem 0.8rem 0.3rem 0.35rem; border: 1px solid var(--border); border-radius: var(--r-pill); background: var(--surface); font-size: var(--fs-sm); font-weight: 600; color: var(--text-2); }
.g-method__n { display: grid; place-items: center; width: 1.5rem; height: 1.5rem; border-radius: 50%; background: var(--g-accent-soft-2); color: var(--g-accent-text); font-size: var(--fs-xs); font-weight: 800; }

.g-df__step { display: flex; flex-direction: column; gap: 0.75rem; padding: var(--sp-5); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); }
.g-df__steptitle { display: flex; align-items: center; gap: 0.65rem; font-size: var(--fs-lg); font-weight: 700; }
.g-df__stepn { display: grid; place-items: center; width: 1.9rem; height: 1.9rem; border-radius: 50%; background: var(--g-accent); color: var(--g-on-accent); font-size: var(--fs-sm); font-weight: 800; }
.g-df__help { margin: 0; font-size: var(--fs-sm); color: var(--text-2); }
.g-df__step > .g-btn { align-self: flex-start; }
.g-df__clarify { list-style: none; display: grid; gap: 0.5rem; margin: 0; padding: 0; }
.g-df__clarify li { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.6rem 0.8rem; border-radius: var(--r-md); background: var(--g-accent-soft); border: 1px solid var(--g-accent-line); }
.g-df__clarify li > .g-ic { margin-top: 0.2rem; color: var(--g-accent-text); }
.g-df__textarea { width: 100%; min-height: 11rem; padding: 0.9rem 1rem; border: 2px solid var(--border-strong); border-radius: var(--r-md); background: var(--surface); color: var(--text); font: inherit; line-height: 1.6; resize: vertical; transition: border-color var(--dur) var(--ease); }
.g-df__textarea:hover { border-color: var(--g-accent-line); }
.g-df__textarea:focus-visible { border-color: var(--g-accent); outline-offset: 1px; }
.g-df__textarea::placeholder { color: var(--muted); }
.g-df__taFoot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; font-size: var(--fs-xs); color: var(--muted); }
.g-df__revealrow { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.g-df__nudge { margin: 0; padding: 0.5rem 0.8rem; border-radius: var(--r-md); background: var(--info-soft); border: 1px solid color-mix(in srgb, var(--info) 30%, transparent); font-size: var(--fs-sm); }

.g-df__reveal { display: flex; flex-direction: column; gap: var(--sp-5); animation: g-pop 0.3s var(--ease); }
.g-df__revealtitle { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; margin: 0; font-size: var(--fs-xl); }
.g-df__block { display: flex; flex-direction: column; gap: 0.75rem; padding: var(--sp-5); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); }
.g-df__blocktitle { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; color: var(--g-accent-text); }
.g-df__opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); gap: 0.75rem; }
.g-df__opt { display: flex; flex-direction: column; gap: 0.5rem; padding: var(--sp-4); border: 1px solid var(--border); border-top: 3px solid var(--g-accent); border-radius: var(--r-md); background: var(--surface-2); }
.g-df__optname { display: flex; align-items: center; gap: 0.5rem; font-weight: 750; }
.g-df__optletter { display: grid; place-items: center; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: var(--g-accent); color: var(--g-on-accent); font-size: var(--fs-xs); font-weight: 800; }
.g-df__optrow { font-size: var(--fs-sm); }
.g-df__optlabel { display: block; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.g-df__model { display: flex; flex-direction: column; gap: var(--sp-4); min-width: 0; }
.g-df__model > * { min-width: 0; }
.g-df__flags { list-style: none; display: grid; gap: 0.5rem; margin: 0; padding: 0; }
.g-df__flags li { display: flex; gap: 0.6rem; align-items: flex-start; padding: 0.55rem 0.8rem; border-radius: var(--r-md); background: var(--bad-soft); border: 1px solid color-mix(in srgb, var(--bad) 30%, transparent); }
.g-df__flags li > .g-ic { margin-top: 0.2rem; color: var(--bad-ink); }

.g-rubric { list-style: none; display: grid; gap: 0.5rem; margin: 0; padding: 0; }
.g-rubric__item { position: relative; isolation: isolate; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 0.8rem; min-height: 3rem; padding: 0.65rem 0.9rem; cursor: pointer; }
.g-rubric__item .g-opt__ring { border-radius: var(--r-md); }
.g-rubric__item:hover .g-opt__ring { border-color: var(--g-accent-line); background: var(--g-accent-soft); }
.g-rubric__item input:checked ~ .g-opt__ring { border-color: var(--ok); background: var(--ok-soft); box-shadow: 0 0 0 1px var(--ok) inset; }
.g-rubric__item input:focus-visible ~ .g-opt__ring { outline: 3px solid var(--focus); outline-offset: 2px; }
.g-rubric__box { display: grid; place-items: center; width: 1.7rem; height: 1.7rem; border: 2px solid var(--border-strong); border-radius: 7px; background: var(--surface); color: transparent; transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease); }
.g-rubric__item input:checked ~ .g-rubric__box { border-color: var(--ok); background: var(--ok); color: var(--surface); }
.g-rubric__text { min-width: 0; line-height: 1.45; }
.g-rubric__w { font-size: var(--fs-xs); letter-spacing: 0.12em; color: var(--text-2); white-space: nowrap; }
.g-score { display: flex; flex-direction: column; gap: 0.6rem; padding: var(--sp-4); border: 1px solid var(--g-accent-line); border-radius: var(--r-md); background: var(--g-accent-soft); }
.g-score__line { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.3rem 0.8rem; }
.g-score__label { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; color: var(--g-accent-text); }
.g-score__num { font-size: var(--fs-2xl); font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.1; }
.g-score__pct { font-size: var(--fs-lg); font-weight: 700; color: var(--text-2); }
.g-score__verdict { margin: 0; font-size: var(--fs-sm); color: var(--text); }
.g-score__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem; }
.g-df__saved { font-size: var(--fs-sm); font-weight: 650; color: var(--ok-ink); }
.g-df__saved:empty { display: none; }

.g-follow { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: var(--sp-4); }
.g-follow__card { display: flex; flex-direction: column; gap: 0.5rem; perspective: 1200px; }
.g-follow__inner { position: relative; display: grid; flex: 1; transform-style: preserve-3d; transition: transform 0.55s var(--ease); cursor: pointer; }
.g-follow__inner.is-flipped { transform: rotateY(180deg); }
.g-follow__face { grid-area: 1 / 1; display: flex; flex-direction: column; gap: 0.5rem; min-height: 9rem; padding: var(--sp-4); border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface-2); backface-visibility: hidden; -webkit-backface-visibility: hidden; min-width: 0; }
.g-follow__q { border-top: 3px solid var(--g-accent); }
.g-follow__a { transform: rotateY(180deg); border-top: 3px solid var(--ok); background: color-mix(in srgb, var(--ok-soft) 60%, var(--surface)); }
.g-follow__a:focus { outline: none; }
.g-follow__text { font-size: var(--fs-sm); }
.g-follow__text p { margin-bottom: 0.5em; }
.g-follow__text p:last-child { margin-bottom: 0; }
.g-follow__btn { display: flex; }

@container lvl (max-width: 32rem) {
  .g-df__ask { flex-direction: column; padding: var(--sp-4); }
  .g-df__step, .g-df__block { padding: var(--sp-4); }
  .g-rubric__item { grid-template-columns: auto minmax(0, 1fr); }
  .g-rubric__w { grid-column: 2; }
}

/* ==========================================================================
   12. Diagrams and the enlarge dialog
   ========================================================================== */

.g-diagram-wrap { min-width: 0; }
.g-diagram { margin: 0; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-1); overflow: hidden; }
.g-diagram__head { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0.7rem 0.9rem 0.7rem 1.1rem; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, var(--g-accent-soft), var(--surface)); border-top: 3px solid var(--g-accent); }
.g-diagram__title { font-weight: 700; line-height: 1.3; }
.g-diagram__tools { display: flex; gap: 0.4rem; flex: none; }
.g-diagram__stage { display: flex; justify-content: center; align-items: flex-start; padding: var(--sp-5) var(--sp-4); overflow-x: auto; min-height: 7rem; background-image: radial-gradient(color-mix(in srgb, var(--border) 80%, transparent) 1px, transparent 1px); background-size: 18px 18px; }
.g-diagram__stage svg { flex: none; height: auto; max-width: 100%; margin-inline: auto; font-family: inherit; }
.g-diagram__skeleton { width: 100%; }
.g-diagram[data-state="ready"] .g-diagram__skeleton { display: none; }
.g-diagram__caption { padding: 0.65rem 1.1rem; border-top: 1px solid var(--border); background: var(--surface); font-size: var(--fs-sm); color: var(--text-2); }
.g-diagram__fallback { display: flex; flex-direction: column; gap: 0.6rem; width: 100%; }
.g-diagram__fallback-msg { display: flex; align-items: center; gap: 0.5rem; margin: 0; font-weight: 650; color: var(--warn-ink); }
.g-diagram__alt { margin: 0; color: var(--text-2); }
.g-diagram__source { margin: 0; padding: 0.8rem 1rem; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--code-bg); font-size: 0.85rem; overflow: auto; }
.g-diagram__source code { padding: 0; border: 0; background: none; }

.g-zoom { position: fixed; inset: 0; z-index: 400; display: grid; place-items: center; padding: var(--sp-3); background: var(--overlay); animation: g-fade 0.18s var(--ease); }
@keyframes g-fade { from { opacity: 0; } to { opacity: 1; } }
.g-zoom__dialog { display: flex; flex-direction: column; width: min(98vw, 84rem); height: min(94vh, 60rem); border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); box-shadow: var(--shadow-2); overflow: hidden; color: var(--text); }
.g-zoom__bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.5rem 1rem; padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.g-zoom__title { font-weight: 700; }
.g-zoom__tools { display: flex; align-items: center; gap: 0.4rem; }
.g-zoom__pct { min-width: 3.2rem; text-align: center; font-size: var(--fs-sm); font-weight: 700; font-variant-numeric: tabular-nums; color: var(--text-2); }
.g-zoom__scroll { flex: 1; overflow: auto; padding: var(--sp-4); background-image: radial-gradient(color-mix(in srgb, var(--border) 80%, transparent) 1px, transparent 1px); background-size: 18px 18px; cursor: grab; }
.g-zoom__scroll.is-dragging { cursor: grabbing; user-select: none; }
.g-zoom__scroll svg { display: block; margin: 0 auto; }
.g-zoom__hint { margin: 0; padding: 0.4rem 0.9rem; border-top: 1px solid var(--border); font-size: var(--fs-xs); color: var(--muted); }

/* ==========================================================================
   14. Topic page and scenario cards
   Topic sections are colour coded through --sc (accent, info, preview, ok, warn, bad, muted).
   Meaning never rests on colour alone: every panel and badge carries an icon and a text label.
   ========================================================================== */

.g-tp { gap: var(--sp-6); }

/* header */
.g-tph {
  border: 1px solid var(--g-accent-line);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--g-accent-soft) 0%, var(--surface) 72%);
  box-shadow: var(--shadow-1);
  overflow: hidden;
}
.g-tph__band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.9rem;
  padding: 0.6rem var(--sp-5);
  background: var(--g-accent);
  color: var(--g-on-accent);
  font-size: var(--fs-sm);
  font-weight: 700;
}
.g-tph__chapter { display: inline-flex; align-items: center; gap: 0.5rem; color: inherit; text-decoration: none; }
.g-tph__chapter:hover { text-decoration: underline; text-underline-offset: 3px; }
.g-tph__chapter:focus-visible { outline-color: var(--g-on-accent); }
.g-tph__wicon { display: inline-flex; }
.g-tph__wicon svg { display: block; }
.g-tph__group { display: inline-flex; align-items: center; gap: 0.2rem; font-weight: 600; opacity: 0.92; }
.g-tph__main { display: flex; flex-direction: column; gap: var(--sp-3); padding: var(--sp-5); }
.g-tph__title { margin: 0; font-size: clamp(1.6rem, 1.15rem + 2vw, 2.4rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.025em; overflow-wrap: anywhere; }
.g-tph__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.g-tph__status:empty { display: none; }
.g-tph__actions { display: inline-flex; flex-wrap: wrap; gap: 0.5rem; margin-left: auto; }

@container lvl (max-width: 34rem) {
  .g-tph__actions { margin-left: 0; }
  .g-tph__band, .g-tph__main { padding-inline: var(--sp-4); }
}

/* sections */
.g-tsec {
  --sc: var(--g-accent);
  --sc-soft: var(--g-accent-soft);
  --sc-ink: var(--g-accent-text);
  --sc-line: var(--g-accent-line);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  min-width: 0;
  scroll-margin-top: calc(var(--topbar-h) + 1rem);
}
.g-tsec + .g-tsec { padding-top: var(--sp-6); border-top: 1px solid var(--border); }
.g-tsec--info { --sc: var(--info); --sc-soft: var(--info-soft); --sc-ink: var(--info-ink); --sc-line: color-mix(in srgb, var(--info) 40%, var(--border)); }
.g-tsec--ok { --sc: var(--ok); --sc-soft: var(--ok-soft); --sc-ink: var(--ok-ink); --sc-line: color-mix(in srgb, var(--ok) 40%, var(--border)); }
.g-tsec--warn { --sc: var(--warn); --sc-soft: var(--warn-soft); --sc-ink: var(--warn-ink); --sc-line: color-mix(in srgb, var(--warn) 40%, var(--border)); }
.g-tsec--bad { --sc: var(--bad); --sc-soft: var(--bad-soft); --sc-ink: var(--bad-ink); --sc-line: color-mix(in srgb, var(--bad) 40%, var(--border)); }
.g-tsec--preview { --sc: var(--preview); --sc-soft: var(--preview-soft); --sc-ink: var(--preview-ink); --sc-line: color-mix(in srgb, var(--preview) 40%, var(--border)); }
.g-tsec--muted { --sc: var(--text-2); --sc-soft: var(--surface-2); --sc-ink: var(--text-2); --sc-line: var(--border-strong); }
.g-tsec__head { display: flex; align-items: center; gap: 0.9rem; }
.g-tsec__icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--sc-line);
  border-radius: var(--r-md);
  background: var(--sc-soft);
  color: var(--sc-ink);
}
.g-tsec__kicker { font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; color: var(--sc-ink); }
.g-tsec__title { margin: 0.1rem 0 0; font-size: clamp(1.35rem, 1.05rem + 1vw, 1.75rem); line-height: 1.2; letter-spacing: -0.018em; scroll-margin-top: calc(var(--topbar-h) + 1rem); }
.g-tsec__title:focus { outline: none; }
.g-tsec__body { display: flex; flex-direction: column; gap: var(--sp-4); min-width: 0; }
.g-tsec__lead { margin: 0; max-width: var(--read-w); color: var(--text-2); }

/* at a glance */
.g-glance { display: flex; flex-direction: column; gap: var(--sp-4); }
.g-glance__summary { max-width: var(--read-w); font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem); font-weight: 500; line-height: 1.5; color: var(--text); }
.g-usepair { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sp-3); }
@container lvl (min-width: 38rem) { .g-usepair { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.g-use { padding: var(--sp-4) var(--sp-5); border: 1px solid; border-left-width: 6px; border-radius: var(--r-lg); box-shadow: var(--shadow-1); }
.g-use--yes { background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 40%, transparent); border-left-color: var(--ok); }
.g-use--no { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 40%, transparent); border-left-color: var(--warn); }
.g-use__label { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.4rem; font-size: var(--fs-sm); font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.g-use--yes .g-use__label { color: var(--ok-ink); }
.g-use--no .g-use__label { color: var(--warn-ink); }
.g-use__text { font-size: var(--fs-md); font-weight: 550; line-height: 1.5; color: var(--text); }

/* where to use it */
.g-where { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr)); gap: var(--sp-3); margin: 0; padding: 0; }
.g-where__card { display: flex; align-items: flex-start; gap: 0.8rem; min-width: 0; padding: var(--sp-4); border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); }
.g-where__icon { display: grid; place-items: center; flex: none; width: 2.4rem; height: 2.4rem; border: 1px solid var(--sc-line); border-radius: var(--r-md); background: var(--sc-soft); color: var(--sc-ink); }
.g-where__text { min-width: 0; padding-top: 0.1rem; line-height: 1.5; overflow-wrap: anywhere; }

/* when to use it */
.g-when3 { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sp-3); }
@container lvl (min-width: 46rem) { .g-when3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.g-w3 { min-width: 0; padding: var(--sp-4); border: 1px solid; border-top-width: 5px; border-radius: var(--r-lg); box-shadow: var(--shadow-1); }
.g-w3--yes { --w3: var(--ok); --w3-ink: var(--ok-ink); background: var(--ok-soft); }
.g-w3--no { --w3: var(--warn); --w3-ink: var(--warn-ink); background: var(--warn-soft); }
.g-w3--flip { --w3: var(--info); --w3-ink: var(--info-ink); background: var(--info-soft); }
.g-w3 { border-color: color-mix(in srgb, var(--w3) 40%, transparent); border-top-color: var(--w3); }
.g-w3__label { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.7rem; font-size: var(--fs-sm); font-weight: 800; letter-spacing: 0.07em; text-transform: uppercase; color: var(--w3-ink); }
.g-w3__list { list-style: none; display: grid; gap: 0.6rem; margin: 0; padding: 0; font-size: var(--fs-sm); color: var(--text); }
.g-w3__list li { display: flex; align-items: flex-start; gap: 0.6rem; line-height: 1.5; }
.g-w3__list li > span:last-child { min-width: 0; overflow-wrap: anywhere; }
.g-w3__mark { display: inline-grid; place-items: center; flex: none; width: 1.3rem; height: 1.3rem; margin-top: 0.1rem; border-radius: 50%; background: var(--w3); color: var(--surface); }

/* comparison table */
.g-alt-wrap { max-height: none; }
.g-table.g-alt th, .g-table.g-alt td { min-width: 10rem; }
.g-table.g-alt tbody th { min-width: 9rem; }
.g-table.g-alt thead th > .g-ic { margin-right: 0.35rem; vertical-align: -1px; }
.g-table.g-alt thead th.is-loses { background: color-mix(in srgb, var(--warn-soft) 80%, var(--surface-2)); color: var(--warn-ink); box-shadow: inset 0 3px 0 var(--warn); }
.g-table.g-alt thead th.is-wins { background: color-mix(in srgb, var(--ok-soft) 80%, var(--surface-2)); color: var(--ok-ink); box-shadow: inset 0 3px 0 var(--ok); }
.g-table.g-alt tbody td.is-loses { background: color-mix(in srgb, var(--warn-soft) 60%, var(--surface)); box-shadow: inset 3px 0 0 var(--warn); }
.g-table.g-alt tbody td.is-wins { background: color-mix(in srgb, var(--ok-soft) 45%, var(--surface)); }
.g-table.g-alt tbody tr.is-self > * { background: var(--g-accent-soft); }
.g-table.g-alt tbody tr.is-self > th { box-shadow: inset 4px 0 0 var(--g-accent), 1px 0 0 var(--border); }
.g-table.g-alt tbody tr.is-self > td.is-loses { background: color-mix(in srgb, var(--warn-soft) 60%, var(--g-accent-soft)); }
@container lvl (max-width: 40rem) {
  .g-alt-wrap { overflow: visible; border: 0; background: none; box-shadow: none; }
  .g-table.g-alt, .g-table.g-alt tbody, .g-table.g-alt tbody tr, .g-table.g-alt tbody th, .g-table.g-alt tbody td { display: block; min-width: 0; }
  .g-table.g-alt thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
  .g-table.g-alt tbody { display: grid; gap: var(--sp-3); }
  .g-table.g-alt tbody tr { overflow: hidden; border: 1px solid var(--border); border-radius: var(--r-md); background: var(--surface); box-shadow: var(--shadow-1); }
  .g-table.g-alt tbody tr.is-self { border-color: var(--g-accent); }
  .g-table.g-alt tbody th { position: static; padding: 0.7rem 1rem; background: var(--surface-2); border-bottom: 1px solid var(--border); box-shadow: none; font-size: var(--fs-md); }
  .g-table.g-alt tbody tr.is-self > th { background: var(--g-accent-soft); box-shadow: inset 4px 0 0 var(--g-accent); }
  .g-table.g-alt tbody td { padding: 0.6rem 1rem; border-bottom: 1px solid var(--border); background: transparent; }
  .g-table.g-alt tbody tr:last-child > td:last-child, .g-table.g-alt tbody tr > td:last-child { border-bottom: 0; }
  .g-table.g-alt tbody td::before { content: attr(data-label); display: block; margin-bottom: 0.15rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.07em; text-transform: uppercase; color: var(--muted); }
  .g-table.g-alt tbody td.is-loses { background: color-mix(in srgb, var(--warn-soft) 60%, var(--surface)); box-shadow: inset 4px 0 0 var(--warn); }
  .g-table.g-alt tbody td.is-loses::before { color: var(--warn-ink); }
  .g-table.g-alt tbody td.is-wins::before { color: var(--ok-ink); }
}

/* related */
.g-rel { list-style: none; display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0; padding: 0; }
.g-rel__link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  max-width: 100%;
  min-height: 2.5rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--text);
  font-size: var(--fs-sm);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.g-rel__link:hover { border-color: var(--g-accent); background: var(--g-accent-soft); transform: translateY(-1px); }
.g-rel__kind { flex: none; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.06em; text-transform: uppercase; color: var(--g-accent-text); white-space: nowrap; }
.g-rel__title { min-width: 0; font-weight: 600; overflow-wrap: anywhere; }

/* scenario cards */
.g-sc-host { min-width: 0; }
.g-sc {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  min-width: 0;
  padding: var(--sp-5);
  border: 1px solid var(--border);
  border-left: 5px solid var(--g-accent);
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.g-sc__head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 0.5rem 1rem; }
.g-sc__heading { min-width: 0; flex: 1 1 14rem; }
.g-sc__title { margin: 0.15rem 0 0; font-size: var(--fs-xl); line-height: 1.25; letter-spacing: -0.015em; }
.g-sc__flags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.g-sc__situation { max-width: var(--read-w); font-size: var(--fs-lg); line-height: 1.55; }
.g-sc__label { margin-bottom: 0.4rem; font-size: var(--fs-xs); font-weight: 750; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.g-sc__label--flip { display: flex; align-items: center; gap: 0.4rem; color: var(--info-ink); }
.g-sc__chips { list-style: none; display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0; padding: 0; }
.g-sc__chip { display: inline-flex; align-items: flex-start; gap: 0.45rem; max-width: 100%; padding: 0.3rem 0.75rem; border: 1px solid var(--g-accent-line); border-radius: var(--r-md); background: var(--g-accent-soft); font-size: var(--fs-sm); line-height: 1.4; }
.g-sc__chip > .g-ic { margin-top: 0.15rem; color: var(--g-accent-text); }
.g-sc__chip > span:last-child { min-width: 0; overflow-wrap: anywhere; }

.g-sc__unk { border: 1px solid var(--border-strong); border-radius: var(--r-md); background: var(--surface-2); }
.g-sc__unksum { display: flex; align-items: center; gap: 0.5rem; min-height: 2.75rem; padding: 0.5rem 0.9rem; font-weight: 650; cursor: pointer; list-style: none; }
.g-sc__unksum::-webkit-details-marker { display: none; }
.g-sc__unksum > .g-ic { color: var(--info-ink); }
.g-sc__unkchev { display: inline-flex; transition: transform var(--dur) var(--ease); }
.g-sc__unk[open] .g-sc__unkchev { transform: rotate(90deg); }
.g-sc__count { margin-left: auto; padding: 0 0.55rem; border-radius: var(--r-pill); background: var(--info-soft); color: var(--info-ink); font-size: var(--fs-xs); font-weight: 800; line-height: 1.7; }
.g-sc__unkbody { padding: 0 1rem 0.9rem; }
.g-sc__unkhint { margin: 0 0 0.4rem; font-size: var(--fs-sm); color: var(--text-2); }
.g-sc__unklist { display: grid; gap: 0.4rem; margin: 0; padding-left: 1.2rem; }
.g-sc__unklist li::marker { color: var(--info); }

.g-sc__ask { padding: var(--sp-3) var(--sp-4); border: 1px solid var(--g-accent-line); border-radius: var(--r-md); background: var(--g-accent-soft); }
.g-sc__ask .g-sc__label { color: var(--g-accent-text); }
.g-sc__question { font-size: var(--fs-lg); font-weight: 700; line-height: 1.4; }

.g-sc__opts { display: flex; flex-direction: column; gap: 0.75rem; }
.g-sco { position: relative; min-width: 0; border: 2px solid var(--border); border-radius: var(--r-md); background: var(--surface); transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.g-sc[data-state="open"] .g-sco:hover, .g-sc[data-state="key"] .g-sco:hover { border-color: var(--g-accent-line); background: var(--g-accent-soft); }
.g-sco.is-selected { border-color: var(--g-accent); background: var(--g-accent-soft); box-shadow: 0 0 0 1px var(--g-accent) inset; }
.g-sco:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }
.g-sco__label { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 0.85rem; min-height: 3.4rem; padding: 0.8rem 1rem; cursor: pointer; }
.g-sc[data-state="checked"] .g-sco__label { cursor: default; }
.g-sco__key {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 2px solid var(--border-strong);
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text-2);
  font-size: var(--fs-sm);
  font-weight: 750;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.g-sco.is-selected .g-sco__key { border-color: var(--g-accent); background: var(--g-accent); color: var(--g-on-accent); }
.g-sco__name { min-width: 0; font-weight: 650; line-height: 1.4; overflow-wrap: anywhere; }
.g-sco__badges { display: inline-flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.35rem; }
.g-sco__badges:not(:has(> :not([hidden]))) { display: none; }
.g-sco__verdict { display: inline-flex; }
.g-vd { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.1rem 0.65rem 0.1rem 0.5rem; border-radius: var(--r-pill); background: var(--vd, var(--surface-3)); color: var(--surface); font-size: var(--fs-xs); font-weight: 800; letter-spacing: 0.04em; line-height: 1.6; text-transform: uppercase; white-space: nowrap; }
.g-vd--best { --vd: var(--ok); }
.g-vd--good { --vd: var(--info); }
.g-vd--poor { --vd: var(--bad); }
.g-sco__mine { display: inline-flex; align-items: center; gap: 0.3rem; padding: 0.05rem 0.6rem 0.05rem 0.45rem; border: 2px solid var(--g-accent); border-radius: var(--r-pill); background: var(--surface); color: var(--g-accent-text); font-size: var(--fs-xs); font-weight: 800; line-height: 1.5; white-space: nowrap; }
.g-sco.is-best { border-color: var(--ok); background: color-mix(in srgb, var(--ok-soft) 70%, var(--surface)); box-shadow: none; }
.g-sco.is-good { border-color: var(--info); background: color-mix(in srgb, var(--info-soft) 70%, var(--surface)); box-shadow: none; }
.g-sco.is-poor { border-color: var(--bad); background: color-mix(in srgb, var(--bad-soft) 55%, var(--surface)); box-shadow: none; }
.g-sco.is-best .g-sco__key { border-color: var(--ok); background: var(--ok); color: var(--surface); }
.g-sco.is-good .g-sco__key { border-color: var(--info); background: var(--info); color: var(--surface); }
.g-sco.is-poor .g-sco__key { border-color: var(--bad); background: var(--bad); color: var(--surface); }
.g-sco.is-mine { box-shadow: 0 0 0 3px color-mix(in srgb, var(--g-accent) 55%, transparent); }
.g-sco__reveal { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0.6rem; padding: 0 1rem 1rem; }
@container lvl (min-width: 44rem) { .g-sco__reveal { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-left: calc(1rem + 2rem + 0.85rem); } }
.g-sco__why, .g-sco__trade { min-width: 0; padding: 0.65rem 0.85rem; border-radius: var(--r-sm); background: var(--surface); border: 1px solid var(--border); font-size: var(--fs-sm); line-height: 1.5; color: var(--text); }
.g-sco__trade { background: color-mix(in srgb, var(--warn-soft) 55%, var(--surface)); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.g-sco__rlabel { display: flex; align-items: center; gap: 0.35rem; margin-bottom: 0.15rem; font-size: var(--fs-xs); font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-2); }
.g-sco__trade .g-sco__rlabel { color: var(--warn-ink); }
@container lvl (max-width: 34rem) {
  .g-sco__label { grid-template-columns: auto minmax(0, 1fr); gap: 0.6rem 0.75rem; padding: 0.75rem 0.85rem; }
  .g-sco__badges { grid-column: 2; justify-content: flex-start; }
  .g-sco__reveal { padding: 0 0.85rem 0.85rem; }
  .g-sc { padding: var(--sp-4); }
}

.g-sc__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1rem; }
.g-sc__keys { font-size: var(--fs-xs); color: var(--muted); }
.g-sc__feedback:not(.is-visible) { display: none; }
.g-sc__feedback { padding: 0.8rem 1rem; border: 1px solid var(--border); border-radius: var(--r-md); }
.g-sc__feedback.is-best { background: var(--ok-soft); border-color: color-mix(in srgb, var(--ok) 45%, transparent); color: var(--ok-ink); }
.g-sc__feedback.is-good { background: var(--info-soft); border-color: color-mix(in srgb, var(--info) 45%, transparent); color: var(--info-ink); }
.g-sc__feedback.is-poor { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 45%, transparent); color: var(--bad-ink); }
.g-sc__result { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 0.6rem; }
.g-sc__bestline { color: var(--text); font-size: var(--fs-sm); }
.g-sc__after { display: flex; flex-direction: column; gap: var(--sp-4); }
.g-sc__flipbox { padding: var(--sp-4); border: 1px solid color-mix(in srgb, var(--info) 35%, transparent); border-radius: var(--r-md); background: var(--info-soft); }
.g-sc__flips { list-style: none; display: grid; gap: 0.6rem; margin: 0; padding: 0; }
.g-sc__flip { display: grid; gap: 0.4rem; padding: 0.7rem 0.9rem; border: 1px solid var(--border); border-radius: var(--r-sm); background: var(--surface); font-size: var(--fs-sm); line-height: 1.5; }
.g-sc__if, .g-sc__then { display: flex; align-items: baseline; gap: 0.6rem; }
.g-sc__if > span:last-child, .g-sc__then > span:last-child { min-width: 0; overflow-wrap: anywhere; }
.g-sc__tag { display: inline-flex; flex: none; align-items: center; justify-content: center; gap: 0.25rem; min-width: 4.4rem; padding: 0.05rem 0.5rem; border-radius: var(--r-pill); background: var(--warn-soft); color: var(--warn-ink); font-size: var(--fs-xs); font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
.g-sc__tag--then { background: var(--ok-soft); color: var(--ok-ink); }
.g-sc__takeaway { max-width: none; font-size: var(--fs-md); }

@media (forced-colors: active) {
  .g-sco.is-selected, .g-sco.is-mine { outline: 3px solid Highlight; }
  .g-vd, .g-w3__mark { forced-color-adjust: none; }
}

@media print {
  .g-tph__actions, .g-sc__actions, .g-sc__unksum .g-sc__unkchev { display: none !important; }
  .g-tph { break-inside: avoid; }
  .g-tsec__head { break-after: avoid; }
  .g-where__card, .g-w3, .g-use, .g-sc, .g-sco, .g-sc__flip { break-inside: avoid; }
  .g-sc__unk > .g-sc__unkbody { display: block; }
  .g-alt-wrap { overflow: visible; }
}

/* ==========================================================================
   13. Forced colours, print
   ========================================================================== */

@media (forced-colors: active) {
  .g-opt__ring, .g-ord__item, .g-match__row, .g-rubric__item .g-opt__ring { border-color: CanvasText; }
  .g-opt input:checked ~ .g-opt__ring, .g-rubric__item input:checked ~ .g-opt__ring { border-color: Highlight; border-width: 3px; }
  .g-seg__opt input:checked + .g-seg__txt { outline: 2px solid Highlight; }
  .g-rank__fill, .g-bar__fill { background: Highlight; forced-color-adjust: none; }
}

@media print {
  .g-btn, .g-pips, .g-h__anchor, .g-h__toast, .g-diagram__tools, .g-code__copy, .g-tabs__list, .g-quiz__intro, .g-qsum, .g-fc, .g-zoom, .g-df__timer, .g-timer, .g-lab__actions, .g-pager { display: none !important; }
  .g-tabs__panel[hidden] { display: flex !important; }
  .g-tabs__printlabel { display: block; }
  .g-acc__panel { height: auto !important; overflow: visible !important; opacity: 1 !important; }
  .g-acc:not([open]) > .g-acc__panel { display: block; }
  .g-blk, .g-q, .g-optcard, .g-callout, .g-diagram, .g-code, .g-fail__item, .g-tile, .g-ref, .g-df__block, .g-scn, .g-formula { break-inside: avoid; }
  .g-table-wrap, .g-code__pre { max-height: none !important; overflow: visible !important; }
  .g-opt__ring, .g-rank__item { box-shadow: none !important; }
  .g-h--2 { break-after: avoid; }
  .g-rank__panel[hidden] { display: block !important; }
  .g-follow__inner { transform: none !important; }
  .g-follow__face { backface-visibility: visible; transform: none !important; grid-area: auto; }
  .g-follow__inner { display: flex; flex-direction: column; gap: 0.4rem; }
  .g-follow__a[aria-hidden="true"] { display: none; }
}