/* Layout: a practical, confident site. One 70rem column, strong plain headings, navy text, one orange accent (token names kept from the earlier brass version), light warm bands for the figures and the close. */
:root {
  --paper: #ffffff;
  --wash: #f5f6f7;
  --ink: #1d2733;
  --muted: #4f5966;
  --line: #e4e7eb;
  --brass: #b8471a;
  --band: #fbf1ea;
  --band-ink: #1d2733;
  --band-muted: #4f5966;
  --band-brass: #b8471a;
  --button: #c9531c;
  --button-ink: #ffffff;
  --ph: #fff0bd;

  --serif: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --sans: "Source Sans 3", "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --step--1: 0.9rem;
  --step-0: 1.0625rem;
  --step-1: 1.25rem;
  --step-2: clamp(1.45rem, 1.2rem + 1vw, 1.75rem);
  --step-3: clamp(1.8rem, 1.4rem + 1.8vw, 2.4rem);
  --step-4: clamp(2.2rem, 1.5rem + 3vw, 3.4rem);

  --wrap: 70rem;
  --gutter: clamp(1rem, 4vw, 2.25rem);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #11161c; --wash: #171e26; --ink: #e9ecef; --muted: #a3acb6; --line: #29313a; --brass: #f08a4b;
    --band: #221b16; --band-ink: #ece7e3; --band-muted: #b8aea6; --band-brass: #f08a4b;
    --button: #e8743a; --button-ink: #1a1006; --ph: #4d3f12;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #11161c; --wash: #171e26; --ink: #e9ecef; --muted: #a3acb6; --line: #29313a; --brass: #f08a4b;
    --band: #221b16; --band-ink: #ece7e3; --band-muted: #b8aea6; --band-brass: #f08a4b;
    --button: #e8743a; --button-ink: #1a1006; --ph: #4d3f12;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: var(--step-0); line-height: 1.65; }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration-color: var(--brass); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--brass); outline-offset: 3px; border-radius: 2px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; text-wrap: balance; margin: 0; }
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
p { margin: 0; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.lede { font-size: var(--step-1); color: var(--muted); max-width: 38rem; line-height: 1.55; }
.muted { color: var(--muted); }
.small { font-size: var(--step--1); }
.eyebrow { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass); }
.ph { background: var(--ph); color: var(--ink); padding: 0 0.25em; border-radius: 2px; }
.rule { width: 3rem; height: 2px; background: var(--brass); border: 0; margin: 0; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem 2rem; flex-wrap: wrap; padding-block: 1.1rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; font-family: var(--serif); font-weight: 800; font-size: 1.35rem; letter-spacing: -0.01em; }
.brand svg { width: 1.5rem; height: 1.5rem; color: var(--brass); flex: none; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem 1.6rem; }
.nav a { text-decoration: none; font-size: 0.98rem; color: var(--muted); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--brass); }

.button { display: inline-block; background: var(--button); color: var(--button-ink); font-weight: 600; text-decoration: none; padding: 0.8rem 1.35rem; border-radius: 6px; line-height: 1.2; }
.button:hover { filter: brightness(1.15); }
.header-cta { padding: 0.55rem 1rem; font-size: 0.95rem; }
.site-header .nav { margin-left: auto; }
.button.quiet { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.text-link { font-weight: 600; text-decoration: underline; text-decoration-color: var(--brass); }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }

/* Sections */
main > section { padding-block: clamp(3rem, 7vw, 5.5rem); }
main > section.tint { background: var(--wash); }
.head { display: grid; gap: 0.9rem; max-width: 44rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.page-head { padding-block: clamp(3rem, 7vw, 5rem) clamp(1rem, 3vw, 2rem); display: grid; gap: 1rem; }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); gap: clamp(2rem, 6vw, 5rem); align-items: end; }
.hero-copy { display: grid; gap: 1.4rem; }
.proof { border-left: 3px solid var(--brass); padding-left: 1.4rem; display: grid; gap: 1.4rem; }
.proof div { display: grid; gap: 0.2rem; }
.proof strong { font-family: var(--serif); font-weight: 700; font-size: 1.15rem; }
.proof span { color: var(--muted); font-size: 0.98rem; }

/* Figures band */
.band { background: var(--band); color: var(--band-ink); }
.band .eyebrow { color: var(--band-brass); }
.band .muted, .band .small { color: var(--band-muted); }
.band a { color: var(--band-ink); text-decoration-color: var(--band-brass); }
.figures { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin-block: 1.75rem 1.75rem; }
.figure { display: grid; gap: 0.4rem; align-content: start; border-top: 3px solid var(--band-brass); padding-top: 1rem; min-width: 0; }
.figure .num { font-family: var(--serif); font-size: clamp(2.4rem, 1.8rem + 2.4vw, 3.4rem); line-height: 1; font-variant-numeric: lining-nums tabular-nums; }
.figure .what { color: var(--band-muted); max-width: 18rem; }
.band-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem 2rem; align-items: baseline; }

/* Two-column prose */
.split { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.split > * { min-width: 0; }
.prose { display: grid; gap: 1.1rem; max-width: 40rem; }
.prose h2 { font-size: var(--step-2); margin-top: 1.25rem; }
.prose h3 { margin-top: 0.5rem; }
.prose ul, .prose ol { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.45rem; }

/* Opportunity kinds */
.kinds { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem 2.75rem; }
.kind { display: grid; gap: 0.55rem; align-content: start; min-width: 0; }
.kind .label { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brass); }
.kind p { color: var(--muted); }

/* Lists of trades / buyers */
.columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0 2.5rem; padding: 0; margin: 0; list-style: none; }
.columns li { border-top: 1px solid var(--line); padding-block: 0.8rem; }
.columns li strong { display: block; font-weight: 600; }
.columns li span { color: var(--muted); font-size: 0.95rem; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; }
.principles div { display: grid; gap: 0.5rem; align-content: start; min-width: 0; }
.principles p { color: var(--muted); }

/* Steps: a real sequence */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; max-width: 48rem; counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 3.5rem minmax(0, 1fr); gap: 0 1rem; padding-block: 1.5rem; border-top: 1px solid var(--line); }
.steps li::before { content: counter(step); font-family: var(--serif); font-size: 2rem; line-height: 1; color: var(--brass); }
.steps li div { display: grid; gap: 0.35rem; }
.steps p { color: var(--muted); }

/* Charts on the market page */
.chart { display: grid; gap: 0.7rem; max-width: 44rem; }
.bar-row { display: grid; grid-template-columns: 11rem minmax(0, 1fr) 3.5rem; gap: 0.75rem; align-items: center; font-size: 0.97rem; }
.bar-track { background: var(--wash); height: 1.4rem; border-radius: 2px; overflow: hidden; }
.bar { height: 100%; background: var(--ink); }
.bar.open { background: var(--brass); }
.bar-val { text-align: right; font-variant-numeric: tabular-nums; }
.legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; font-size: 0.9rem; color: var(--muted); }
.legend span::before { content: ""; display: inline-block; width: 0.8rem; height: 0.8rem; margin-right: 0.4rem; vertical-align: -0.05rem; background: var(--ink); border-radius: 2px; }
.legend span.open::before { background: var(--brass); }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 2rem; }
.stat { display: grid; gap: 0.35rem; border-top: 3px solid var(--brass); padding-top: 0.9rem; align-content: start; }
.stat .num { font-family: var(--serif); font-size: 2.4rem; line-height: 1; font-variant-numeric: lining-nums tabular-nums; }
.stat p { color: var(--muted); }

.faq { max-width: 48rem; }
.faq details { border-top: 1px solid var(--line); padding-block: 1rem; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-family: var(--serif); font-weight: 600; font-size: 1.1rem; }
.faq details p { margin-top: 0.6rem; color: var(--muted); }

.closing .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.5rem 3rem; }
.closing h2 { font-size: var(--step-2); max-width: 32rem; }
.closing .button { background: var(--button); color: var(--button-ink); }

.contact-item { display: grid; gap: 0.2rem; }
.contact-item .label { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--brass); }
.contact-item .value { font-family: var(--serif); font-size: var(--step-1); overflow-wrap: anywhere; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; vertical-align: top; padding: 0.65rem 0.75rem 0.65rem 0; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding-block: 2.5rem 3rem; color: var(--muted); font-size: 0.92rem; }
.site-footer .wrap { display: grid; gap: 0.9rem; }
.foot-brand { font-family: var(--serif); font-weight: 600; font-size: 1.15rem; color: var(--ink); }
.foot-links { display: flex; flex-wrap: wrap; gap: 0.3rem 1.4rem; }

@media (max-width: 56rem) {
  .hero, .split { grid-template-columns: minmax(0, 1fr); }
  .kinds { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 36rem) {
  .kinds, .principles, .figures { grid-template-columns: minmax(0, 1fr); }
  .figures { gap: 1.25rem; }
  .bar-row { grid-template-columns: 7.5rem minmax(0, 1fr) 3rem; font-size: 0.9rem; }
  .site-header .wrap { padding-block: 0.8rem 0; }
  .site-header .nav { order: 3; width: 100%; margin-left: 0; flex-wrap: nowrap; overflow-x: auto; gap: 1.2rem; padding-block: 0.6rem 0.7rem; scrollbar-width: none; }
  .site-header .nav a { white-space: nowrap; }
  .brand { font-size: 1.25rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

.num { font-weight: 800; letter-spacing: -0.02em; }
.faq summary, .contact-item .value, .foot-brand { font-weight: 700; }