:root {
  --ground: #f7f3e8;
  --panel: #fffdf6;
  --panel-2: #efe9da;
  --ink: #1b1712;
  --ink-soft: #4f4a40;
  --teal: #0e5a54;
  --teal-2: #0a3f3b;
  --ox: #8e2d24;
  --gold: #9a7412;
  --slate: #6d6558;
  --line: #ded5c0;
  --line-hard: #c6bb9f;
  --serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1140px;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17.5px;
  line-height: 1.66;
  background: var(--ground);
}

a { color: var(--teal-2); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--ox); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 40;
  background: var(--teal-2); color: #fff; padding: 10px 14px;
}
.skip:focus { left: 0; }

/* ---- masthead: small caps, a two-sided rule, no shadow ---- */
.top {
  position: sticky; top: 0; z-index: 30;
  background: var(--panel);
  border-bottom: 1px solid var(--ink);
  box-shadow: 0 3px 0 -2px var(--teal);
}
.bar {
  max-width: var(--max); margin: 0 auto; padding: 12px 22px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.brand {
  color: var(--ink); text-decoration: none;
  font-family: var(--sans); font-weight: 700;
  letter-spacing: 0.2em; text-transform: uppercase; font-size: 12.5px;
  display: inline-flex; align-items: center; gap: 10px;
}
.mark {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; background: var(--teal-2); color: #f7f3e8;
  font: 700 12px/1 var(--mono); letter-spacing: 0.02em;
}
.menu { display: flex; gap: 15px; flex-wrap: wrap; margin-left: auto; }
.menu a {
  color: var(--slate); text-decoration: none;
  font: 600 12px/1.4 var(--sans); letter-spacing: 0.12em; text-transform: uppercase;
}
.menu a:hover, .menu a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--teal); }
.btn {
  display: inline-block; background: var(--teal); color: #f7f3e8;
  font: 700 13.5px/1 var(--sans); letter-spacing: 0.04em;
  padding: 11px 16px; text-decoration: none;
  border-bottom: 3px solid var(--teal-2);
  transition: transform 160ms var(--ease), background-color 160ms var(--ease);
}
.btn:hover { background: var(--teal-2); color: #f7f3e8; transform: translateY(-1px); }
.top .btn { margin-left: 4px; }
.ghost {
  display: inline-block; margin-left: 14px; padding: 10px 15px;
  border: 1px solid var(--line-hard); color: var(--teal-2); text-decoration: none;
  font: 600 13.5px/1 var(--sans);
}

.shell { max-width: var(--max); margin: 0 auto; padding: 0 22px 60px; }

/* ---- disclosure: rendered by the layout, so no page can omit it ---- */
.disc {
  margin: 24px 0 28px; padding: 15px 18px 15px 22px;
  background: var(--panel-2); border-left: 3px solid var(--ink);
  font-family: var(--sans); font-size: 13.5px; line-height: 1.6; color: var(--ink-soft);
}
.disc b { color: var(--ink); }
.disc code { font-family: var(--mono); font-size: 12px; background: #e5ddc8; padding: 1px 5px; }

/* ---- page hero: a single hard spine down the left edge ---- */
.page-hero {
  position: relative;
  background: var(--panel);
  border-top: 3px solid var(--ink);
  border-bottom: 1px solid var(--line-hard);
  padding: 30px 30px 28px 30px;
  box-shadow: inset 6px 0 0 -3px var(--teal);
}
.crumb-line {
  font: 600 11px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--slate); margin-bottom: 16px;
}
.hero-grid { display: grid; grid-template-columns: 1.02fr 1fr; gap: 34px; align-items: start; }
.eyebrow {
  font: 700 11.5px/1.4 var(--sans); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ox); margin-bottom: 12px;
}
.page-hero h1 {
  margin: 0 0 14px; font-size: clamp(30px, 4.1vw, 46px); line-height: 1.08;
  letter-spacing: -0.015em; font-weight: 400;
}
.lede { margin: 0 0 20px; font-size: 19px; color: var(--ink-soft); }
.lede::first-letter {
  float: left; font-size: 3.35em; line-height: 0.82; padding: 4px 10px 0 0;
  color: var(--teal-2); font-weight: 400;
}
.hero-cta { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }

/* ---- prose ---- */
main h2 {
  margin: 42px 0 12px; font-size: 25px; line-height: 1.22; font-weight: 400;
  border-bottom: 1px solid var(--line-hard); padding-bottom: 8px;
}
main h3 { margin: 26px 0 8px; font-size: 18.5px; line-height: 1.3; font-weight: 700; }
main p { margin: 0 0 15px; }
main ul, main ol { margin: 0 0 16px; padding-left: 22px; }
main li { margin: 0 0 7px; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--panel-2); padding: 1px 4px; }

/* ---- the answer block: answer-first, 40-60 words, extractable ---- */
.answer {
  margin: 26px 0 8px; padding: 18px 20px 16px;
  background: var(--panel); border-top: 2px solid var(--teal);
  border-bottom: 1px solid var(--line);
  font-size: 18px;
}
.answer b {
  display: block; margin-bottom: 6px;
  font: 700 11.5px/1 var(--sans); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--teal);
}

/* ---- arithmetic: figures in mono, working on the page ---- */
.calc {
  margin: 20px 0 22px; padding: 16px 18px;
  background: var(--panel); border: 1px solid var(--line-hard); border-left: 3px solid var(--gold);
  font-family: var(--mono); font-size: 14px; line-height: 1.85; overflow-x: auto;
}
.calc b { color: var(--ox); }

/* ---- a two-sided board: buy and sell of the same number, split by the spine ---- */
.board {
  margin: 22px 0; display: grid; grid-template-columns: 1fr 1fr;
  border-top: 2px solid var(--ink); background: var(--panel);
}
.board-side { padding: 16px 18px; }
.board-side + .board-side { border-left: 3px solid var(--teal); }
.board-side h3 { margin: 0 0 8px; }
.board-head {
  font: 700 11px/1.4 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 8px;
}
.board-buy .board-head { color: var(--teal); }
.board-sell .board-head { color: var(--ox); }

/* ---- chips ---- */
.chip {
  display: inline-block; font: 700 11px/1 var(--mono); letter-spacing: 0.08em;
  text-transform: uppercase; padding: 4px 7px; border: 1px solid var(--line-hard);
  background: var(--panel); color: var(--ink-soft);
}
.chip-price { border-color: var(--teal); color: var(--teal); }
.chip-cost { border-color: var(--ox); color: var(--ox); }
.chip-index { border-color: var(--gold); color: var(--gold); }

/* ---- signature component 1: the quote ladder ---- */
.quote-ladder {
  margin: 0; background: var(--panel);
  border-top: 3px solid var(--ink); border-bottom: 1px solid var(--line-hard);
  padding: 14px 18px 16px;
}
.ql-cap {
  font: 700 11px/1.4 var(--sans); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--slate); margin-bottom: 4px;
}
.ql-head, .ql-row {
  display: grid; grid-template-columns: 1fr 74px 74px; gap: 10px; align-items: center;
}
.ql-head {
  font: 700 10.5px/1.4 var(--mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--slate); border-bottom: 1px solid var(--line-hard); padding-bottom: 6px;
}
.ql-row { padding: 10px 0; border-bottom: 1px dashed var(--line-hard); }
.ql-row:last-child { border-bottom: 0; }
.ql-name { font-size: 15px; }
.ql-name em { display: block; font-family: var(--sans); font-size: 12.5px; font-style: normal; color: var(--slate); }
.ql-buy, .ql-sell {
  font: 700 16px/1.2 var(--mono); text-align: right; padding: 5px 6px;
}
.ql-buy { color: var(--teal); background: #eaf1ef; }
.ql-sell { color: var(--ox); background: #f6ebe6; }
.ql-gap {
  grid-column: 1 / -1; position: relative; height: 9px; margin: 2px 0 4px;
  background: repeating-linear-gradient(90deg, var(--line-hard) 0 2px, transparent 2px 6px);
}
.ql-gap span {
  position: absolute; left: 0; top: 0; bottom: 0; background: rgba(14, 90, 84, 0.18);
  border-left: 2px solid var(--teal); border-right: 2px solid var(--ox);
}
.ql-gap i {
  position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  font: 700 9px/9px var(--mono); font-style: normal; color: var(--slate);
  background: var(--panel); padding: 0 4px; white-space: nowrap;
}

/* ---- signature component 2: the P/L rail ---- */
.pl-rail {
  margin: 24px 0; background: var(--panel);
  border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line-hard); padding: 14px 18px 16px;
}
.pl-cap {
  font: 700 11px/1.4 var(--sans); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--slate); margin-bottom: 10px;
}
.pl-row { padding: 11px 0; border-bottom: 1px dashed var(--line-hard); }
.pl-row:last-child { border-bottom: 0; }
.pl-meta {
  display: flex; justify-content: space-between; gap: 12px;
  font: 600 12.5px/1.5 var(--mono); color: var(--ink-soft); margin-bottom: 7px;
}
.pl-meta strong { color: var(--ink); font-weight: 700; }
.pl-track {
  position: relative; height: 16px; background: #eae3d2; border: 1px solid var(--line-hard);
}
.pl-zero { position: absolute; top: -4px; bottom: -4px; width: 2px; background: var(--ink); }
.pl-bar { position: absolute; top: 2px; bottom: 2px; }
.pl-bar.held { background: var(--teal); }
.pl-bar.cost { background: var(--ox); }
.pl-beyond {
  position: absolute; top: 0; bottom: 0; background: repeating-linear-gradient(45deg, rgba(142,45,36,0.28) 0 4px, transparent 4px 8px);
}
.pl-row p { margin: 8px 0 0; font-size: 14.5px; color: var(--ink-soft); }

/* ---- myths: a claim, then the check ---- */
.myth-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 20px 0; }
.myth { background: var(--panel); border: 1px solid var(--line-hard); border-top: 2px solid var(--ox); padding: 15px 17px; }
.myth h3 { margin: 0 0 6px; font-size: 16.5px; }
.myth .verdict {
  font: 700 10.5px/1 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ox);
  display: block; margin-bottom: 8px;
}
.myth p { margin: 0; font-size: 15.5px; }

/* ---- note / scope blocks ---- */
.note {
  margin: 22px 0; padding: 15px 18px; background: var(--panel-2);
  border-left: 3px solid var(--ox); font-size: 16px;
}
.note-tag {
  display: block; font: 700 11px/1 var(--sans); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ox); margin-bottom: 7px;
}
.note p { margin: 0; }

/* ---- tables ---- */
table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 15.5px; background: var(--panel); }
caption {
  text-align: left; font: 600 12.5px/1.5 var(--sans); color: var(--slate); padding-bottom: 8px;
}
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th {
  font: 700 11px/1.4 var(--sans); letter-spacing: 0.1em; text-transform: uppercase;
  border-bottom: 2px solid var(--ink); color: var(--ink);
}
tbody tr:last-child td { border-bottom: 0; }

/* ---- numbered steps ---- */
.steps { list-style: none; padding: 0; margin: 20px 0; counter-reset: step; }
.steps li {
  position: relative; padding: 0 0 14px 46px; margin: 0 0 4px; border-left: 1px solid var(--line-hard);
  margin-left: 15px;
}
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: -15px; top: 0; width: 30px; height: 30px;
  display: grid; place-items: center; background: var(--teal-2); color: #f7f3e8;
  font: 700 13px/1 var(--mono);
}
.steps strong { display: block; }

/* ---- call-to-action band ---- */
.ctaband {
  margin: 30px 0; padding: 18px 20px; background: var(--panel-2);
  border-top: 2px solid var(--teal); border-bottom: 2px solid var(--teal);
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.ctaband p { margin: 0; max-width: 62ch; font-size: 15.5px; color: var(--ink-soft); }

/* ---- footer ---- */
.footer { background: var(--panel); border-top: 3px solid var(--ink); margin-top: 40px; }
.foot-grid {
  max-width: var(--max); margin: 0 auto; padding: 30px 22px 12px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 26px;
}
.footer .brand { color: var(--ink); }
.footer strong {
  display: block; margin-bottom: 10px;
  font: 700 11px/1.4 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink);
}
.footer a { display: block; color: var(--ink-soft); text-decoration: none; font-size: 15px; padding: 2px 0; }
.footer a:hover { color: var(--ox); text-decoration: underline; }
.footer p { margin: 12px 0 0; font-size: 15px; color: var(--ink-soft); }
.fine {
  max-width: var(--max); margin: 0 auto; padding: 12px 22px 34px;
  font-family: var(--sans); font-size: 12.5px; line-height: 1.7; color: var(--slate);
  border-top: 1px solid var(--line);
}

@media (max-width: 880px) {
  .hero-grid, .board, .myth-grid, .foot-grid { grid-template-columns: 1fr; }
  .board-side + .board-side { border-left: 0; border-top: 3px solid var(--teal); }
  .page-hero h1 { font-size: 30px; }
  .menu { width: 100%; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}