/* ==========================================================================
   FastKey — guide / article layer.
   Loaded AFTER styles.css; reuses its design tokens (:root). Long-form reading
   surface for the /guide/ content: same daylight-indigo world as the landing
   page, tuned for prose, code, tables, and answer-first extraction blocks.
   ========================================================================== */

/* ---- Article shell ------------------------------------------------------- */
.guide {
  padding-top: calc(var(--header-h) + clamp(1.5rem, 4vw, 3rem));
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}
.guide__wrap { max-width: 46rem; margin-inline: auto; padding-inline: var(--gutter); }

/* Breadcrumb */
.crumbs { font-size: 0.9rem; color: var(--ink-3); margin-bottom: var(--s6); }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.4em; padding: 0; }
.crumbs li { display: inline-flex; align-items: center; gap: 0.4em; }
.crumbs li + li::before { content: "/"; color: var(--border-strong); }
.crumbs a { color: var(--ink-3); }
.crumbs a:hover { color: var(--indigo); }
.crumbs [aria-current="page"] { color: var(--ink-2); }

/* Header */
.guide__head { margin-bottom: clamp(1.75rem, 4vw, 2.75rem); }
.guide__kicker {
  display: inline-block; font-family: var(--font-display); font-weight: 700;
  font-size: 0.8rem; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--indigo); margin-bottom: var(--s3);
}
.guide__title {
  font-size: clamp(2rem, 1.3rem + 2.6vw, 3.1rem); font-weight: 800;
  letter-spacing: -0.02em; margin-bottom: var(--s5);
}
.guide__standfirst {
  font-size: var(--fs-lead); line-height: 1.55; color: var(--ink-2); max-width: 62ch;
}
.guide__meta {
  margin-top: var(--s5); font-size: 0.88rem; color: var(--ink-3);
  display: flex; flex-wrap: wrap; gap: 0.35em 1rem; align-items: center;
}

/* ---- Prose --------------------------------------------------------------- */
.prose { color: var(--ink); }
.prose > * + * { margin-top: 1.15em; }
.prose h2 {
  font-size: var(--fs-h2); font-weight: 800; margin-top: 2.4em; margin-bottom: 0.1em;
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.prose h3 {
  font-size: var(--fs-h3); font-weight: 700; margin-top: 1.9em;
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.prose p, .prose li { font-size: var(--fs-body); line-height: 1.7; color: var(--ink-2); }
.prose strong { color: var(--ink); font-weight: 650; }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose ul, .prose ol { padding-left: 1.35em; }
.prose li + li { margin-top: 0.4em; }
.prose ul { list-style: none; padding-left: 0; }
.prose ul > li { position: relative; padding-left: 1.5em; }
.prose ul > li::before {
  content: ""; position: absolute; left: 0.15em; top: 0.72em;
  width: 0.5em; height: 0.5em; border-radius: 2px; background: var(--indigo); opacity: 0.55;
}
.prose ol { list-style: none; counter-reset: step; padding-left: 0; }
.prose ol > li { position: relative; padding-left: 2.2em; counter-increment: step; }
.prose ol > li::before {
  content: counter(step); position: absolute; left: 0; top: 0.1em;
  width: 1.55em; height: 1.55em; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 0.85em;
  color: #fff; background: var(--indigo); border-radius: 50%;
}
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2.4em 0; }

/* ---- Answer-first block (the bit AI engines lift) ------------------------ */
.answer {
  background: var(--card); border: 1px solid var(--border);
  border-left: 4px solid var(--indigo); border-radius: var(--r);
  padding: clamp(1.15rem, 3vw, 1.6rem); box-shadow: var(--shadow-card);
  margin-block: var(--s6);
}
.answer p { margin: 0; color: var(--ink); font-size: 1.08rem; line-height: 1.6; }
.answer p + p { margin-top: 0.7em; }
.answer strong { color: var(--ink); }

/* ---- Key-facts block ----------------------------------------------------- */
.keyfacts {
  background: var(--bg-2); border: 1px solid var(--border); border-radius: var(--r);
  padding: clamp(1.15rem, 3vw, 1.5rem) clamp(1.15rem, 3vw, 1.75rem); margin-block: var(--s8);
}
.keyfacts__title {
  font-family: var(--font-display); font-weight: 700; font-size: 0.82rem;
  letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3);
  margin-bottom: var(--s4);
}
.keyfacts dl { display: grid; grid-template-columns: max-content 1fr; gap: 0.55em 1.1em; margin: 0; }
.keyfacts dt { font-weight: 650; color: var(--ink); }
.keyfacts dd { margin: 0; color: var(--ink-2); }
@media (max-width: 34rem) {
  .keyfacts dl { grid-template-columns: 1fr; gap: 0.15em; }
  .keyfacts dd { margin-bottom: 0.7em; }
}

/* ---- Callouts ------------------------------------------------------------ */
.callout {
  border: 1px solid var(--border); border-radius: var(--r);
  padding: clamp(1rem, 2.5vw, 1.35rem); margin-block: var(--s6);
  display: flex; gap: 0.85em;
}
.callout svg { flex: none; width: 22px; height: 22px; margin-top: 0.15em; }
.callout p { margin: 0; }
.callout p + p { margin-top: 0.5em; }
.callout--note { background: color-mix(in srgb, var(--indigo) 5%, var(--card)); border-color: var(--border-strong); }
.callout--note svg { color: var(--indigo); }
.callout--warn { background: color-mix(in srgb, var(--miss) 6%, var(--card)); border-color: color-mix(in srgb, var(--miss) 25%, var(--border)); }
.callout--warn svg { color: var(--miss); }
.callout--ok { background: color-mix(in srgb, var(--ok) 7%, var(--card)); border-color: color-mix(in srgb, var(--ok) 25%, var(--border)); }
.callout--ok svg { color: var(--ok); }

/* ---- Code ---------------------------------------------------------------- */
.prose code {
  font-family: var(--font-mono); font-size: 0.92em;
  background: var(--bg-2); border: 1px solid var(--border);
  padding: 0.12em 0.4em; border-radius: 6px; color: var(--ink);
  overflow-wrap: break-word;
}
.codeblock {
  margin-block: var(--s6); border-radius: var(--r-sm); overflow: hidden;
  border: 1px solid var(--ink); background: #14122b;
}
.codeblock__bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.5em 0.9em; background: #1d1a3d; color: #cfc9ff;
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.02em;
}
.codeblock__copy {
  font: inherit; color: #cfc9ff; border: 1px solid rgba(207,201,255,0.3);
  border-radius: 6px; padding: 0.15em 0.6em; transition: border-color var(--t-fast), color var(--t-fast);
}
.codeblock__copy:hover { border-color: var(--bolt); color: var(--bolt); }
.codeblock__copy.is-copied { color: var(--ok); border-color: var(--ok); }
.codeblock pre { margin: 0; padding: 1em 1.1em; overflow-x: auto; }
.codeblock code {
  font-family: var(--font-mono); font-size: 0.9rem; line-height: 1.6;
  color: #eae7ff; background: none; border: 0; padding: 0; white-space: pre;
}
.codeblock .tok-flag { color: #8ce0b0; }
.codeblock .tok-str { color: #ffd60a; }

/* ---- Comparison table ---------------------------------------------------- */
/* Breaks out of the ~46rem reading column so all columns (incl. the highlighted
   FastKey one) are visible without horizontal scrolling on desktop. Centered on
   the viewport; falls back to internal scroll on narrow screens. */
.tablewrap {
  margin-block: var(--s8);
  width: min(62rem, 94vw);
  margin-left: 50%;
  transform: translateX(-50%);
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r);
}
table.cmp { border-collapse: collapse; width: 100%; min-width: 42rem; font-size: 0.95rem; }
table.cmp th, table.cmp td { padding: 0.7em 0.9em; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
table.cmp thead th { background: var(--bg-2); font-family: var(--font-display); font-weight: 700; color: var(--ink); }
table.cmp tbody th { font-weight: 650; color: var(--ink); background: color-mix(in srgb, var(--bg-2) 55%, var(--card)); }
table.cmp .col-fast { background: color-mix(in srgb, var(--indigo) 6%, var(--card)); }
table.cmp thead .col-fast { background: color-mix(in srgb, var(--indigo) 12%, var(--card)); color: var(--indigo-ink); }
table.cmp tr:last-child td, table.cmp tr:last-child th { border-bottom: 0; }
.yes { color: var(--ok); font-weight: 650; }
.no { color: var(--miss); font-weight: 650; }
.meh { color: var(--ink-3); }

/* ---- Table of contents --------------------------------------------------- */
.toc {
  border: 1px solid var(--border); border-radius: var(--r); padding: 1.1rem 1.3rem;
  margin-block: var(--s8); background: var(--card);
}
.toc__title { font-family: var(--font-display); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); margin-bottom: var(--s3); }
.toc ol { list-style: none; counter-reset: toc; padding: 0; margin: 0; }
.toc li { counter-increment: toc; margin: 0.3em 0; }
.toc a { color: var(--ink-2); font-size: 0.97rem; }
.toc a::before { content: counter(toc) ". "; color: var(--indigo); font-weight: 650; }
.toc a:hover { color: var(--indigo); }

/* ---- In-article CTA ------------------------------------------------------ */
.guide-cta {
  margin-block: clamp(2.5rem, 6vw, 3.5rem); padding: clamp(1.6rem, 4vw, 2.4rem);
  background: var(--grad-drench); color: var(--on-drench); border-radius: var(--r-lg);
  text-align: center; box-shadow: var(--shadow-card);
}
.guide-cta h2 { color: #fff; font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.1rem); margin-bottom: var(--s3); margin-top: 0; }
.guide-cta p { color: var(--on-drench-sub); max-width: 48ch; margin: 0 auto var(--s6); }
.guide-cta .btn { text-decoration: none; }

/* ---- Related / next reads ------------------------------------------------ */
.related { margin-top: clamp(2.5rem, 6vw, 3.5rem); border-top: 1px solid var(--border); padding-top: var(--s8); }
.related__title { font-family: var(--font-display); font-weight: 800; font-size: 1.25rem; margin-bottom: var(--s5); }
.related__grid { display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.related__card {
  display: block; border: 1px solid var(--border); border-radius: var(--r);
  padding: 1.1rem 1.25rem; background: var(--card); box-shadow: var(--shadow-card);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.related__card:hover { transform: translateY(-2px); border-color: var(--border-strong); text-decoration: none; }
.related__card h3 { font-size: 1.02rem; font-weight: 700; color: var(--ink); margin-bottom: 0.35em; }
.related__card p { font-size: 0.92rem; color: var(--ink-3); margin: 0; }
.related__card span { color: var(--indigo); font-weight: 650; font-size: 0.9rem; }

/* ---- Guide index / hub --------------------------------------------------- */
.hub__grid { display: grid; gap: var(--s5); grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); margin-top: var(--s10); }
.hub__card {
  display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: clamp(1.35rem, 3vw, 1.85rem); background: var(--card); box-shadow: var(--shadow-card);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.hub__card:hover { transform: translateY(-3px); border-color: var(--border-strong); text-decoration: none; }
.hub__card h2 { font-size: 1.2rem; font-weight: 700; color: var(--ink); margin-bottom: var(--s3); line-height: 1.2; }
.hub__card p { font-size: 0.97rem; color: var(--ink-2); margin: 0 0 var(--s5); flex: 1; }
.hub__card span { color: var(--indigo); font-weight: 650; }

/* ---- Reduced motion ------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  .related__card, .hub__card { transition: none; }
}