/* Layout: single editorial column (68rem) — serif statements on the left,
   monospace data panels on the right, hairline rules between sections. */
:root {
  --paper: #f3f4f2;
  --panel: #fbfbfa;
  --ink: #111719;
  --muted: #56615f;
  --rule: #d3d8d5;
  --accent: #0e6a64;
  --accent-soft: #dcebe8;
  --no: #8a4b3c;

  --font-display: "Spectral", "Iowan Old Style", Georgia, serif;
  --font-body: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --step--1: 0.8125rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-2: 1.5rem;
  --step-3: clamp(1.75rem, 1.2rem + 2vw, 2.375rem);
  --step-4: clamp(2.25rem, 1.4rem + 3.6vw, 3.75rem);

  --gutter: clamp(1rem, 4vw, 2.5rem);
  --max: 68rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0c1113;
    --panel: #121a1c;
    --ink: #e5e9e6;
    --muted: #97a3a0;
    --rule: #26302f;
    --accent: #5bb8ad;
    --accent-soft: #15302d;
    --no: #d08a78;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0c1113;
  --panel: #121a1c;
  --ink: #e5e9e6;
  --muted: #97a3a0;
  --rule: #26302f;
  --accent: #5bb8ad;
  --accent-soft: #15302d;
  --no: #d08a78;
  color-scheme: dark;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
}

a { color: var(--accent); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.15; text-wrap: balance; margin: 0; }
p { margin: 0; }

.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }

.label {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.skip { position: absolute; left: -999px; }
.skip:focus { left: var(--gutter); top: 0.5rem; background: var(--panel); padding: 0.5rem 0.75rem; z-index: 10; }

/* Header */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 5;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--rule);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 0.875rem; flex-wrap: wrap; }

.brand { display: inline-flex; align-items: center; gap: 0.625rem; color: var(--ink); text-decoration: none; }
.brand svg { width: 28px; height: 28px; flex: none; }
.brand-name { font-family: var(--font-display); font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }
.brand-sub { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.18em; color: var(--muted); margin-left: 0.125rem; }

.nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; font-size: 0.9375rem; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }

/* Sections */
section { border-bottom: 1px solid var(--rule); }
section > .wrap { padding-block: clamp(3rem, 7vw, 5.5rem); }

.section-head { display: grid; gap: 0.75rem; margin-bottom: 2.5rem; max-width: 40rem; }
.section-head h2 { font-size: var(--step-3); }
.section-head p { color: var(--muted); font-size: var(--step-1); }

/* Hero */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: center; padding-block: clamp(3rem, 8vw, 6rem); }
.hero h1 { font-size: var(--step-4); font-weight: 400; letter-spacing: -0.015em; }
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-copy { display: grid; gap: 1.5rem; min-width: 0; }
.hero-copy .lede { font-size: var(--step-1); color: var(--muted); max-width: 36rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.1rem;
  font: 500 0.9375rem/1 var(--font-body);
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper);
  text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--accent); border-color: var(--accent); color: var(--paper); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn.ghost:hover { border-color: var(--ink); color: var(--ink); background: transparent; }

/* Contract ladder (hero panel) */
.ladder {
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
}
.ladder-head { display: flex; justify-content: space-between; gap: 1rem; padding: 0.875rem 1rem; border-bottom: 1px solid var(--rule); }
.ladder-head strong { font-weight: 500; }
.ladder-head span { color: var(--muted); }
.ladder table { width: 100%; border-collapse: collapse; }
.ladder th { font-weight: 400; color: var(--muted); text-align: right; padding: 0.5rem 1rem; font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; }
.ladder th:first-child, .ladder td:first-child { text-align: left; }
.ladder td { text-align: right; padding: 0.3rem 1rem; transition: background-color 0.6s ease; }
.ladder tr.ask td:first-child { color: var(--no); }
.ladder tr.bid td:first-child { color: var(--accent); }
.ladder tr.mid td { border-block: 1px dashed var(--rule); color: var(--muted); padding-block: 0.45rem; }
.ladder td.flash { background: var(--accent-soft); }
.ladder-foot { display: grid; gap: 0.625rem; padding: 0.875rem 1rem; border-top: 1px solid var(--rule); }
.split { display: flex; height: 6px; background: var(--rule); }
.split i { display: block; background: var(--accent); transition: width 0.8s ease; }
.ladder-foot p { color: var(--muted); font-size: 0.6875rem; letter-spacing: 0.04em; }

/* Firm facts */
.firm .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.firm .section-head { margin-bottom: 0; }
.facts { margin: 0; border-top: 1px solid var(--ink); }
.facts div { display: grid; grid-template-columns: 11rem minmax(0, 1fr); gap: 1rem; padding-block: 0.8rem; border-bottom: 1px solid var(--rule); }
.facts dt { font-family: var(--font-mono); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); padding-top: 0.15rem; }
.facts dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

.tbd { font-family: var(--font-mono); font-size: 0.875em; background: var(--accent-soft); padding: 0.05em 0.35em; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--ink); }
.principle { display: grid; gap: 0.5rem; padding: 1.5rem 1.5rem 1.75rem 0; border-bottom: 1px solid var(--rule); align-content: start; }
.principle:nth-child(odd) { border-right: 1px solid var(--rule); }
.principle:nth-child(even) { padding-left: 1.5rem; }
.principle h3 { font-size: var(--step-2); }
.principle p { color: var(--muted); max-width: 32rem; }

/* Markets */
.venues { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.venue { display: grid; gap: 0.75rem; align-content: start; padding: 1.5rem; background: var(--panel); border: 1px solid var(--rule); }
.venue-top { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; }
.venue h3 { font-size: var(--step-2); }
.venue p { color: var(--muted); }
.venue a { font-size: 0.9375rem; }
.instruments { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; color: var(--muted); font-size: 0.9375rem; }
.instruments strong { color: var(--ink); font-weight: 500; }

/* Lineage */
.lineage .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.lineage .section-head { margin-bottom: 0; }
.stats { display: flex; flex-wrap: wrap; gap: 2rem; margin-top: 2rem; }
.stat { display: grid; }
.stat b { font-family: var(--font-display); font-weight: 400; font-size: var(--step-3); font-variant-numeric: tabular-nums; line-height: 1.1; }
.stat span { font-size: 0.875rem; color: var(--muted); }

.timeline { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.timeline li { position: relative; display: grid; grid-template-columns: 5.5rem minmax(0, 1fr); gap: 1rem; padding: 0 0 1.75rem 1.5rem; }
.timeline li::before { content: ""; position: absolute; left: -5px; top: 0.45rem; width: 9px; height: 9px; background: var(--paper); border: 1px solid var(--muted); }
.timeline li.now::before { background: var(--accent); border-color: var(--accent); }
.timeline time { font-family: var(--font-mono); font-size: 0.875rem; color: var(--muted); padding-top: 0.1rem; font-variant-numeric: tabular-nums; }
.timeline h3 { font-family: var(--font-body); font-size: var(--step-0); font-weight: 600; margin-bottom: 0.25rem; }
.timeline p { color: var(--muted); font-size: 0.9375rem; }

/* Contact */
.contact .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact .section-head { margin-bottom: 1.5rem; }
.addresses { display: grid; gap: 1rem; }
.address { display: grid; gap: 0.2rem; padding-block: 0.9rem; border-top: 1px solid var(--rule); }
.address-row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.address a { font-family: var(--font-mono); font-size: 1rem; }
.address p { color: var(--muted); font-size: 0.9375rem; }
.copy { font: 0.75rem/1 var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; padding: 0.35rem 0.5rem; background: transparent; color: var(--muted); border: 1px solid var(--rule); cursor: pointer; }
.copy:hover { color: var(--ink); border-color: var(--ink); }

form { display: grid; gap: 1rem; padding: clamp(1.25rem, 3vw, 2rem); background: var(--panel); border: 1px solid var(--rule); min-width: 0; }
.row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.field { display: grid; gap: 0.35rem; min-width: 0; }
.field label { font-size: 0.875rem; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%;
  font: inherit; font-size: 0.9375rem;
  color: var(--ink); background: var(--paper);
  border: 1px solid var(--rule); border-radius: 0;
  padding: 0.65rem 0.75rem;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.field textarea { min-height: 8rem; resize: vertical; }
.hp { position: absolute; left: -9999px; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.form-note { font-size: 0.8125rem; color: var(--muted); max-width: 22rem; }
.status { font-size: 0.9375rem; min-height: 1.5em; }
.status.err { color: var(--no); }

/* Footer */
.site-footer { font-size: 0.875rem; color: var(--muted); }
.site-footer .wrap { display: grid; gap: 1.5rem; padding-block: 3rem; }
.foot-top { display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.foot-entity { display: grid; gap: 0.2rem; }
.foot-entity strong { color: var(--ink); font-weight: 500; }
.foot-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.foot-links a { color: var(--muted); }
.disclaimer { max-width: 52rem; font-size: 0.8125rem; line-height: 1.6; border-top: 1px solid var(--rule); padding-top: 1.5rem; }

/* Legal page */
.doc .wrap { max-width: 46rem; padding-block: clamp(3rem, 7vw, 5rem); display: grid; gap: 2.5rem; }
.doc h1 { font-size: var(--step-3); }
.doc section { border: 0; display: grid; gap: 0.875rem; }
.doc h2 { font-size: var(--step-2); }
.doc p, .doc li { color: var(--muted); }
.doc ul { margin: 0; padding-left: 1.2rem; display: grid; gap: 0.4rem; }

/* Responsive */
@media (max-width: 860px) {
  .hero .wrap, .firm .wrap, .lineage .wrap, .contact .wrap { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .principles, .venues, .row { grid-template-columns: minmax(0, 1fr); }
  .principle, .principle:nth-child(even) { padding-left: 0; padding-right: 0; }
  .principle:nth-child(odd) { border-right: 0; }
  .facts div { grid-template-columns: minmax(0, 1fr); gap: 0.15rem; }
  .timeline li { grid-template-columns: minmax(0, 1fr); gap: 0.25rem; }
  .nav { font-size: 0.875rem; gap: 0.25rem 1rem; }
}
@media (prefers-reduced-motion: reduce) {
  .ladder td, .split i { transition: none; }
}
address { font-style: normal; }