/* EdgeQuant Trading — site stylesheet.
   Palette and type scale are shared with the Foundations Series posts so the
   whole domain reads as one system. */

:root {
  --ground: #E9DFCB;
  --surface: #F6F0E2;
  --surface-2: #DED2BB;
  --ink: #2A1E13;
  --ink-2: #6A5844;
  --ink-3: #7E6A4C;
  --rule: #D8C9AE;
  --rule-strong: #C0AD90;
  --accent: #96601A;
  --accent-soft: #F0E3C6;
  --c-seq: #6B3FA0;
  --c-gain: #047857;
  --c-loss: #B4381B;
  --shadow: 0 1px 2px rgba(42,30,19,.08), 0 8px 24px -18px rgba(42,30,19,.36);
  --bar-bg: rgba(233,223,203,.94);

  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --f-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --measure: 64ch;
  --wide: 1280px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground: #1A120A; --surface: #241A11; --surface-2: #2E2318;
    --ink: #F0E6D5; --ink-2: #BAA88E; --ink-3: #8B7A64;
    --rule: #362818; --rule-strong: #4B3826;
    --accent: #DFA75A; --accent-soft: #2C2013;
    --c-seq: #9B78C8; --c-gain: #2E9E76; --c-loss: #D2603F;
    --shadow: 0 1px 2px rgba(0,0,0,.5), 0 8px 24px -18px rgba(0,0,0,.9);
    --bar-bg: rgba(26,18,10,.94);
  }
}

:root[data-theme="dark"] {
  --ground: #1A120A; --surface: #241A11; --surface-2: #2E2318;
  --ink: #F0E6D5; --ink-2: #BAA88E; --ink-3: #8B7A64;
  --rule: #362818; --rule-strong: #4B3826;
  --accent: #DFA75A; --accent-soft: #2C2013;
  --c-seq: #9B78C8; --c-gain: #2E9E76; --c-loss: #D2603F;
  --shadow: 0 1px 2px rgba(0,0,0,.5), 0 8px 24px -18px rgba(0,0,0,.9);
  --bar-bg: rgba(26,18,10,.94);
}

* { box-sizing: border-box; }

body {
  margin: 0; background: var(--ground); color: var(--ink);
  font-family: var(--f-body); font-size: 17px; line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  display: flex; flex-direction: column; min-height: 100dvh;
}

a { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
img, svg { max-width: 100%; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--ground); padding: 10px 16px;
  font-family: var(--f-mono); font-size: 12px; text-decoration: none;
}
.skip:focus { left: 0; }

/* ---------- masthead ---------- */
.bar {
  position: sticky; top: 0; z-index: 40; background: var(--bar-bg);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule);
}
.bar-in {
  max-width: var(--wide); margin: 0 auto; padding: 11px 24px;
  display: flex; align-items: center; gap: 18px; position: relative;
}

.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: inherit; min-width: 0; }
.brand .mark { flex: none; width: 40px; height: 40px; display: block; }
.brand-txt { display: flex; flex-direction: column; min-width: 0; }
.brand-txt b {
  font-family: var(--f-display); font-weight: 700; font-size: 19px;
  letter-spacing: -.022em; line-height: 1.12; white-space: nowrap;
}
.brand-txt span {
  font-family: var(--f-mono); font-size: 9px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ink-3); white-space: nowrap;
}
@media (max-width: 420px) { .brand-txt span { display: none; } }

.bar-spacer { flex: 1; }

.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  font-family: var(--f-display); font-size: .88rem; font-weight: 500;
  color: var(--ink-2); text-decoration: none; padding: 8px 12px; border-radius: 3px;
  white-space: nowrap; line-height: 1;
}
.nav a:hover { color: var(--ink); background: var(--surface-2); }
.nav a[aria-current="page"] { color: var(--accent); background: var(--accent-soft); }
.nav .nav-cta {
  color: var(--ground); background: var(--accent); margin-left: 8px;
  font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase;
}
.nav .nav-cta:hover { color: var(--ground); background: var(--accent); filter: brightness(1.08); }

.nav-toggle {
  display: none; font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-2); background: var(--surface);
  border: 1px solid var(--rule-strong); border-radius: 3px; padding: 9px 13px; cursor: pointer;
}

@media (max-width: 940px) {
  .nav {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--ground); border-bottom: 1px solid var(--rule);
    padding: 6px 18px 14px; box-shadow: var(--shadow);
  }
  .nav.open { display: flex; }
  .nav a { padding: 13px 10px; border-bottom: 1px solid var(--rule); font-size: .98rem; }
  .nav a:last-child { border-bottom: 0; }
  .nav .nav-cta { margin: 10px 0 2px; justify-content: center; display: flex; border-radius: 3px; }
  .nav-toggle { display: block; }
}

/* ---------- page frame ---------- */
main { flex: 1; width: 100%; max-width: var(--wide); margin: 0 auto; padding: 0 24px; }
section { padding: 52px 0; border-bottom: 1px solid var(--rule); }
section:last-of-type { border-bottom: 0; }

.eyebrow {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .15em;
  text-transform: uppercase; color: var(--accent); margin: 0 0 12px;
}
.eyebrow-quiet { color: var(--ink-3); }

h1 {
  font-family: var(--f-display); font-weight: 700; font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.03; letter-spacing: -.03em; margin: 0 0 18px; text-wrap: balance; max-width: 20ch;
}
h2 {
  font-family: var(--f-display); font-weight: 600; font-size: clamp(1.35rem, 2.6vw, 1.95rem);
  line-height: 1.14; letter-spacing: -.02em; margin: 0 0 14px; text-wrap: balance; max-width: 26ch;
}
h3 { font-family: var(--f-display); font-weight: 600; font-size: 1.06rem; margin: 0 0 6px; }

p { margin: 0 0 14px; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }
.lede { font-size: 1.17rem; color: var(--ink-2); max-width: 60ch; }
.muted { color: var(--ink-2); }
.center { text-align: center; }
.center h2, .center p { margin-left: auto; margin-right: auto; }

ul, ol { margin: 0 0 14px; padding-left: 1.15em; max-width: var(--measure);
  display: flex; flex-direction: column; gap: 8px; }
.term { font-family: var(--f-display); font-weight: 600; }
.mono { font-family: var(--f-mono); font-size: .88em; }

/* ---------- oversized hero lockup ---------- */
.hero { padding: clamp(46px, 8vw, 86px) 0 clamp(40px, 6vw, 68px); border-bottom: 1px solid var(--rule); }

.lockup-xl {
  display: flex; align-items: center; gap: clamp(18px, 4vw, 38px);
  margin: 0 0 clamp(26px, 4vw, 42px); flex-wrap: nowrap;
}
.lockup-xl .mark-xl {
  flex: none; width: clamp(86px, 17vw, 178px); height: clamp(86px, 17vw, 178px); display: block;
}
.lockup-txt-xl { display: flex; flex-direction: column; gap: clamp(6px, 1vw, 12px); min-width: 0; }
.wordmark {
  font-family: var(--f-display); font-weight: 700;
  font-size: clamp(2.1rem, 8.4vw, 6rem); line-height: .9;
  letter-spacing: -.042em; margin: 0; text-wrap: nowrap; color: var(--ink);
}
.wordmark .wm-2 { color: var(--accent); }
.wordmark-sub {
  font-family: var(--f-mono); font-size: clamp(9.5px, 1.5vw, 13px);
  letter-spacing: clamp(.14em, .5vw, .34em); text-transform: uppercase;
  color: var(--ink-3); margin: 0; max-width: none;
}
@media (max-width: 560px) {
  .lockup-xl { flex-direction: column; align-items: flex-start; gap: 20px; }
  .wordmark { font-size: clamp(2.1rem, 13vw, 3.4rem); line-height: .94; }
}

.hero-grid { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: start; }
@media (min-width: 1040px) { .hero-grid { grid-template-columns: minmax(0,1.1fr) minmax(0,.9fr); gap: 56px; } }

/* small inline lockup used on interior pages */
.lockup { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.lockup .mark-lg { flex: none; width: clamp(54px,11vw,68px); height: clamp(54px,11vw,68px); display: block; }
.lockup-txt { display: flex; flex-direction: column; gap: 3px; }
.lockup-txt b { font-family: var(--f-display); font-weight: 700;
  font-size: clamp(1.4rem,4vw,2rem); line-height: 1; letter-spacing: -.03em; }
.lockup-txt span { font-family: var(--f-mono); font-size: clamp(9px,2.2vw,10.5px);
  letter-spacing: .2em; text-transform: uppercase; color: var(--ink-3); }

/* ---------- buttons ---------- */
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.btn {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-2); background: var(--surface); border: 1px solid var(--rule-strong);
  border-radius: 3px; padding: 12px 17px; cursor: pointer; text-decoration: none;
  display: inline-flex; align-items: center; gap: 8px; line-height: 1;
}
.btn:hover { color: var(--ink); border-color: var(--ink-3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--ground); }
.btn-primary:hover { color: var(--ground); filter: brightness(1.08); }

/* ---------- cards ---------- */
.card { background: var(--surface); border: 1px solid var(--rule);
  border-radius: 3px; box-shadow: var(--shadow); }
.pad { padding: 24px 26px; }

.grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 720px)  { .grid-2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 720px)  { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1060px) { .grid-3 { grid-template-columns: 1fr 1fr 1fr; } }

.card a { text-decoration: none; }

.entry { display: flex; flex-direction: column; gap: 11px; padding: 26px;
  text-decoration: none; color: inherit; height: 100%; }
a.entry:hover { border-color: var(--rule-strong); }
a.entry:hover h3 { color: var(--accent); }
.entry-meta { font-family: var(--f-mono); font-size: 10px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 6px 14px;
  align-items: center; }
.entry h3 { font-size: 1.18rem; letter-spacing: -.018em; margin: 0; }
.entry p { font-size: .96rem; color: var(--ink-2); max-width: none; margin: 0; }
.entry-more { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent); margin-top: auto; padding-top: 8px; }

/* numbered feature list */
.numbered { display: grid; grid-template-columns: 1fr; }
.numbered .row { display: grid; grid-template-columns: 48px 1fr; gap: 14px;
  padding: 22px 26px; border-bottom: 1px solid var(--rule); align-items: start; }
.numbered .row:last-child { border-bottom: 0; }
.numbered .n { font-family: var(--f-mono); font-size: 11px; color: var(--accent);
  letter-spacing: .1em; padding-top: 5px; font-variant-numeric: tabular-nums; }
.numbered .row p { font-size: .96rem; color: var(--ink-2); max-width: 62ch; margin: 0; }

/* ---------- notes ---------- */
.note { display: flex; gap: 13px; align-items: baseline; max-width: var(--measure);
  padding: 16px 19px; background: var(--surface); border: 1px solid var(--rule);
  border-left: 3px solid var(--accent); border-radius: 2px; font-size: .95rem; color: var(--ink-2); }
.note strong { color: var(--ink); font-weight: 600; }
.note p { max-width: none; }
.note-wide { max-width: none; }
.note-warn { border-left-color: var(--c-loss); }

/* ---------- tables ---------- */
.scroller { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-family: var(--f-display);
  font-size: .92rem; min-width: 540px; }
thead th { text-align: left; font-family: var(--f-mono); font-weight: 500; font-size: 10px;
  letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3);
  padding: 12px 18px; border-bottom: 1px solid var(--rule-strong); white-space: nowrap; }
tbody td { padding: 13px 18px; border-bottom: 1px solid var(--rule);
  vertical-align: top; line-height: 1.5; color: var(--ink-2); }
tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { color: var(--ink); font-weight: 600; }

/* ---------- definition grid ---------- */
.defs { display: grid; grid-template-columns: 1fr; }
@media (min-width: 660px)  { .defs { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1060px) { .defs { grid-template-columns: 1fr 1fr 1fr; } }
.def { padding: 19px 21px; border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule); display: flex; flex-direction: column; gap: 4px; }
.def dt { font-family: var(--f-display); font-weight: 600; font-size: .95rem; }
.def dd { margin: 0; font-size: .94rem; color: var(--ink-2); line-height: 1.5; }

/* ---------- status pills ---------- */
.pill { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: .11em;
  text-transform: uppercase; padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--rule-strong); color: var(--ink-3); white-space: nowrap; }
.pill-live { color: var(--c-gain); border-color: var(--c-gain); }
.pill-wip  { color: var(--accent); border-color: var(--accent); }

/* ---------- forms ---------- */
.form { display: grid; grid-template-columns: 1fr; gap: 16px; padding: 26px; }
@media (min-width: 720px) { .form-2 { grid-template-columns: 1fr 1fr; } .form-2 .full { grid-column: 1 / -1; } }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-family: var(--f-mono); font-size: 10px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-3); }
.field input, .field select, .field textarea {
  font-family: var(--f-mono); font-size: 14.5px; padding: 11px 12px; color: var(--ink);
  background: var(--ground); border: 1px solid var(--rule-strong); border-radius: 3px;
  width: 100%; line-height: 1.5;
}
.field textarea { min-height: 150px; resize: vertical; }
.form-note { font-family: var(--f-mono); font-size: 10.5px; line-height: 1.65;
  color: var(--ink-3); grid-column: 1 / -1; margin: 0; max-width: none; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---------- prose ---------- */
.prose { max-width: 72ch; }
.prose h2 { margin-top: 38px; max-width: none; }
.prose h3 { margin-top: 26px; }
.prose ul, .prose ol, .prose p { max-width: none; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 36px 0; }
.post-meta { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-3); margin-bottom: 18px;
  display: flex; flex-wrap: wrap; gap: 6px 16px; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--rule); background: var(--surface); margin-top: 24px; }
.foot-in { max-width: var(--wide); margin: 0 auto; padding: 44px 24px 28px;
  display: grid; grid-template-columns: 1fr; gap: 32px; }
@media (min-width: 820px) { .foot-in { grid-template-columns: 1.5fr 1fr 1fr; gap: 46px; } }
.foot-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.foot-brand .mark { width: 44px; height: 44px; flex: none; }
.foot-brand b { font-family: var(--f-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -.024em; }
.foot h4 { font-family: var(--f-mono); font-size: 10px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-3); margin: 0 0 13px; font-weight: 500; }
.foot ul { list-style: none; padding: 0; margin: 0; gap: 9px; }
.foot a { color: var(--ink-2); text-decoration: none; font-family: var(--f-display); font-size: .9rem; }
.foot a:hover { color: var(--accent); }
.foot-blurb { font-size: .92rem; color: var(--ink-2); max-width: 44ch; }
.foot-legal { border-top: 1px solid var(--rule); }
.foot-legal-in { max-width: var(--wide); margin: 0 auto; padding: 20px 24px 32px;
  font-family: var(--f-mono); font-size: 10.5px; line-height: 1.7; color: var(--ink-3); }
.foot-legal-in p { max-width: 96ch; margin: 0 0 8px; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ------------------------------------------------------------------ prose --
   Body copy for notes written in Markdown (build/posts.mjs). The base h1..h3,
   p and list rules above already carry the type scale; this adds only what
   prose needs and the marketing pages never used -- blockquote, tables, code
   blocks, figures and the vertical rhythm between them.
   Wide things scroll inside their own box: a table that widens the page turns
   every paragraph on it into a horizontal scroll. */
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: 16px; }
.prose h2 { margin-top: 34px; }
.prose h3 { margin-top: 26px; }
.prose img { max-width: 100%; height: auto; border-radius: 8px; display: block; }
.prose hr { border: 0; border-top: 1px solid var(--rule); margin: 30px 0; }
.prose blockquote {
  margin: 0; padding: 2px 0 2px 18px; border-left: 2px solid var(--accent);
  color: var(--ink-2);
}
.prose pre {
  margin: 0; padding: 14px 16px; overflow-x: auto; border-radius: 8px;
  background: var(--surface-2); border: 1px solid var(--rule);
}
.prose pre code { font-family: var(--f-mono); font-size: .86rem; line-height: 1.55; }
.prose :not(pre) > code {
  font-family: var(--f-mono); font-size: .88em; padding: 1px 5px; border-radius: 4px;
  background: var(--surface-2); border: 1px solid var(--rule);
}
.prose .table-wrap { overflow-x: auto; }
.prose table { border-collapse: collapse; width: 100%; font-size: .94rem; }
.prose th, .prose td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--rule); }
.prose th { font-family: var(--f-display); font-weight: 600; color: var(--ink-2); white-space: nowrap; }