/* A readable guide using the shared Retro palette. */
.fmGuide { width: 100%; max-width: 1420px; margin: 0 auto; padding: 36px var(--gutter) 48px; }
.fmIntro { max-width: 760px; margin-bottom: 26px; }
.fmIntro h1 { margin: 12px 0 18px; font-size: clamp(36px, 4.2vw, 62px); }
.fmIntro h1 em { color: var(--portal); font-style: normal; }
.fmIntro > p:last-child { max-width: 62ch; color: var(--ink-soft); font-size: 16px; }
.fmRates
{
	display: grid;
	grid-template-columns: minmax(0, 1fr) auto;
	gap: 16px 32px;
	padding: 24px 28px;
	border: 1px solid var(--night-line);
	border-radius: var(--radius);
	color: var(--on-night);
	background: var(--night);
}
.fmRates h2 { font-size: 24px; }
.fmRatesCopy p { max-width: 52ch; margin-top: 10px; color: var(--on-night-muted); font-size: 13px; }
.fmRateNumbers { display: flex; gap: 30px; margin: 0; align-items: center; }
.fmRateNumbers > div + div { padding-left: 30px; border-left: 1px solid var(--night-line); }
.fmRateNumbers dt { font-size: 11px; color: var(--on-night-muted); }
.fmRateNumbers dd { margin: 4px 0 0; font: 700 50px/1 var(--display); font-variant-numeric: tabular-nums; }
.fmRateNumbers > div:first-child dd { color: var(--portal-light); }
.fmRateNumbers dd span { font-size: 25px; }
.fmRatesNote { grid-column: 1 / -1; padding-top: 13px; border-top: 1px solid var(--night-line); font-size: 12px; color: var(--on-night-muted); }
.fmContents { display: flex; flex-wrap: wrap; gap: 9px 23px; margin: 22px 0 0; padding-bottom: 19px; border-bottom: 1px solid var(--line-strong); }
.fmContents a { color: var(--portal-dark); font-size: 13px; font-weight: 600; text-decoration: none; }
.fmContents a:hover { text-decoration: underline; }
.fmColumns { display: grid; grid-template-columns: minmax(0, 1fr) minmax(290px, .56fr); gap: 46px; align-items: start; }
.fmReading { min-width: 0; }
.fmSection { padding: 30px 0; border-bottom: 1px solid var(--line); scroll-margin-top: 160px; }
.fmSection h2 { display: flex; gap: 12px; align-items: baseline; margin-bottom: 18px; font-size: 26px; }
.fmSection h2 > span { flex: none; color: var(--portal); font: 600 12px var(--display); }
.fmSection p, .fmRunePanel > p, .fmDetails > p { color: var(--ink-soft); font-size: 14px; }
.fmSection p + p, .fmDetails p + p { margin-top: 12px; }
.fmRows { margin: 0; }
.fmRows > div { display: grid; grid-template-columns: 105px minmax(0, 1fr); gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.fmRows > div:first-child { padding-top: 0; }
.fmRows > div:last-child { border-bottom: 0; padding-bottom: 0; }
.fmRows dt { font-weight: 700; font-size: 13px; }
.fmRows dd { margin: 0; color: var(--ink-soft); font-size: 14px; }
.fmResultRows > div { grid-template-columns: 165px minmax(0, 1fr); }
.fmResultRows abbr { color: var(--portal-dark); text-decoration: none; }
.fmGuide .fmHint { margin-top: 16px; font-size: 12px; color: var(--text-muted); }
.fmExample { padding: 18px 20px; margin: 18px 0; border-left: 3px solid var(--portal); background: var(--portal-pale); }
.fmExample .fmExampleLabel { font-size: 11px; color: var(--portal-dark); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.fmExample .fmEquation { margin: 14px 0; color: var(--portal-dark); font: 17px var(--display); }
.fmEquation strong { font-size: 25px; }
.fmRuleList, .fmSteps { margin: 0; padding-left: 20px; color: var(--ink-soft); font-size: 14px; }
.fmRuleList li + li, .fmSteps li + li { margin-top: 12px; }
.fmRuleList strong, .fmSteps strong { color: var(--ink); }
.fmSteps li::marker { color: var(--portal-dark); font-weight: 700; }
.fmSteps a { color: var(--portal-dark); }
.fmRunePanel { min-width: 0; margin-top: 30px; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-raised); scroll-margin-top: 160px; }
.fmRunePanel h2 { margin-bottom: 12px; font-size: 25px; }
.fmTableScroll { max-width: 100%; overflow-x: auto; margin-top: 18px; }
.fmTable { width: 100%; border-collapse: collapse; color: var(--ink-soft); font-size: 12px; }
.fmTable caption { text-align: left; padding-bottom: 10px; color: var(--text-muted); font-size: 11px; }
.fmTable th, .fmTable td { padding: 9px 7px; border-bottom: 1px solid var(--line); }
.fmTable th { text-align: left; font-weight: 600; }
.fmTable thead th { background: var(--surface-muted); color: var(--ink); }
.fmTable td { text-align: center; font-variant-numeric: tabular-nums; }
.fmWeightTable th:first-child { width: 62%; }
.fmWeightTable tbody tr:nth-last-child(2) { color: var(--portal-dark); background: var(--portal-pale); }
.fmDetails { padding: 17px 0; border-bottom: 1px solid var(--line); }
.fmDetails summary { cursor: pointer; font-size: 14px; color: var(--portal-dark); font-weight: 700; }
.fmDetails[open] summary { margin-bottom: 15px; }
.fmSources { margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--line-strong); color: var(--text-muted); font-size: 11px; }
.fmSources p + p { margin-top: 6px; }
.fmSources a { color: var(--portal-dark); }
@media (max-width: 1100px)
{
	.fmColumns { gap: 26px; grid-template-columns: minmax(0, 1fr) minmax(270px, .62fr); }
	.fmResultRows > div { grid-template-columns: 1fr; gap: 5px; }
	.fmRates { padding: 22px; gap: 18px; }
	.fmRates h2 { font-size: 21px; }
	.fmRateNumbers { gap: 18px; }
	.fmRateNumbers > div + div { padding-left: 18px; }
}
@media (max-width: 900px)
{
	.fmColumns { grid-template-columns: 1fr; }
	.fmRunePanel { margin-top: 0; }
	.fmResultRows > div { grid-template-columns: 165px minmax(0, 1fr); gap: 14px; }
}
@media (max-width: 600px)
{
	.fmGuide { padding-top: 24px; }
	.fmIntro > p:last-child { font-size: 14px; }
	.fmRates { grid-template-columns: 1fr; padding: 20px; }
	.fmRateNumbers { justify-content: flex-start; gap: 28px; }
	.fmRateNumbers > div + div { padding-left: 28px; }
	.fmRateNumbers dd { font-size: 43px; }
	.fmSection h2 { font-size: 23px; gap: 9px; }
	.fmRows > div { grid-template-columns: 1fr; gap: 4px; }
	.fmRunePanel { padding: 18px; }
	.fmTable th, .fmTable td { padding: 8px 5px; }
}
@media (prefers-reduced-motion: reduce)
{
	html { scroll-behavior: auto; }
}