:root {
  --ink: #0e1420;
  --panel: #151d2c;
  --panel-2: #1a2434;
  --line: #263246;
  --line-soft: #1e2836;
  --text: #d9e2ef;
  --text-soft: #a7b6cb;
  --muted: #7c8ca3;
  --back: #4c8dff;
  --back-wash: #16253d;
  --lay: #ff5f7e;
  --lay-wash: #331725;
  --ok: #41d69b;
  --ok-wash: #122c26;
  --warn: #e0a72b;
  --warn-wash: #2e2413;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --fast: 200ms;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, monospace;
  --max: 1140px;
}

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

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

body {
  margin: 0;
  color: var(--text);
  font: 400 clamp(16px, 0.5vw + 14px, 17px) / 1.64 var(--sans);
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(to bottom, transparent 0 27px, var(--line-soft) 27px 28px),
    radial-gradient(1100px 520px at 78% -10%, rgba(76, 141, 255, 0.13), transparent 70%),
    radial-gradient(760px 420px at 6% 8%, rgba(255, 95, 126, 0.09), transparent 68%);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.1; margin: 0; font-weight: 800; }
h1 { font-size: clamp(2.05rem, 4.5vw, 3.3rem); letter-spacing: -0.034em; }
h2 { font-size: clamp(1.26rem, 1.9vw, 1.62rem); letter-spacing: -0.02em; }
h3 { font-size: 1.04rem; letter-spacing: -0.008em; }
p { margin: 0 0 1em; }
a { color: var(--text); text-underline-offset: 3px; text-decoration-thickness: 2px; }
ul, ol { padding-left: 1.15em; margin: 0 0 1em; }
li { margin-bottom: 0.45em; }
strong { font-weight: 700; }
em { font-style: italic; }
code { font-family: var(--mono); font-size: 0.88em; color: var(--warn); }

.crumb-line, .mini-label, .eyebrow, .msg-tag, .fig-cap, .chip, .depth-cap, .brand .mark,
.ladder-head, .ladder-price, .ladder-size, .side-tag, .pos-k, .pos-v, .fee-row .fee-k,
.fee-row .fee-v, .rail-stop .at, .check-step .num, .next-step .kicker, table.data thead th,
table.data caption, .footer strong, .code-tag, .stat-k, .stat-v, .step-num {
  font-family: var(--mono);
}

.skip { position: absolute; left: -9999px; top: 0; padding: 12px 18px; background: var(--back); color: #08111d; z-index: 30; text-decoration: none; font-weight: 700; }
.skip:focus { left: 12px; top: 12px; }

/* ------------------------------------------------------------------ masthead */
.top { position: sticky; top: 0; z-index: 20; background: rgba(14, 20, 32, 0.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.bar { max-width: var(--max); margin: 0 auto; padding: 12px 22px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: -0.02em; margin-right: auto; font-size: 1.03rem; }
.brand .mark {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 6px;
  background: linear-gradient(100deg, var(--back) 0 50%, var(--lay) 50% 100%);
  color: #08111d; font: 800 0.68rem/1 var(--mono); letter-spacing: 0.02em;
}
.menu { display: flex; gap: 3px; flex-wrap: wrap; }
.menu a {
  color: var(--text-soft); text-decoration: none; font-size: 0.8rem; padding: 6px 10px; border-radius: 5px;
  border: 1px solid transparent;
  transition: color var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}
.menu a:hover { color: var(--text); background: var(--panel-2); border-color: var(--line); transform: translateY(-1px); }
.menu a[aria-current="page"] { color: #08111d; background: var(--back); border-color: var(--back); font-weight: 700; }

/* ------------------------------------------------------------------ buttons */
.btn, .ghost {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 6px;
  font-weight: 750; font-size: 0.87rem; text-decoration: none; border: 1px solid transparent;
  transition: transform var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease), color var(--fast) var(--ease);
}
.btn { background: var(--ok); color: #07160f; }
.btn:hover { background: #63e6b3; color: #07160f; transform: translateY(-1px); }
.ghost { background: transparent; color: var(--text); border-color: var(--line); }
.ghost:hover { border-color: var(--back); color: var(--text); transform: translateY(-1px); }
.top .btn { padding: 8px 13px; font-size: 0.78rem; }

/* ------------------------------------------------------------------ shell */
.shell { max-width: var(--max); margin: 0 auto; padding: 0 22px 76px; }
main { display: block; }

.page-hero { padding: clamp(32px, 4.8vw, 56px) 0 28px; border-bottom: 1px solid var(--line); margin-bottom: 36px; }
.crumb-line { font-size: 0.71rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.eyebrow {
  display: inline-block; font-size: 0.68rem; letter-spacing: 0.11em; text-transform: uppercase;
  color: var(--back); border: 1px solid var(--back); background: var(--back-wash);
  padding: 4px 10px; border-radius: 4px; margin-bottom: 17px; font-weight: 700;
}
.hero-grid { display: grid; grid-template-columns: 1.55fr 1fr; gap: 34px; align-items: start; }
.page-hero h1 { max-width: 24ch; }
.lede { max-width: 62ch; margin-top: 15px; color: var(--text-soft); font-size: 1.05rem; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }

/* book card in the hero: the two sides of the same market */
.bookcard { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 17px; box-shadow: 0 18px 40px rgba(0, 0, 0, 0.38); }
.bookcard .fig-cap { display: block; font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); margin-bottom: 13px; font-weight: 700; }
.book-head { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.side-tag { font-size: 0.63rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 800; text-align: center; padding: 5px 0; border-radius: 4px; }
.side-tag.back { color: var(--back); background: var(--back-wash); border: 1px solid var(--back); }
.side-tag.lay { color: var(--lay); background: var(--lay-wash); border: 1px solid var(--lay); }
.book-rows { list-style: none; margin: 0; padding: 0; }
.book-rows li { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 0 0 5px; }
.book-rows .cell {
  display: flex; justify-content: space-between; gap: 8px; align-items: baseline;
  padding: 6px 9px; border-radius: 4px; font-size: 0.79rem; border: 1px solid transparent;
}
.book-rows .cell.back { background: var(--back-wash); border-color: #22375a; color: var(--back); }
.book-rows .cell.lay { background: var(--lay-wash); border-color: #4a2434; color: var(--lay); }
.book-rows .cell em { font-style: normal; color: var(--text-soft); font-family: var(--mono); font-size: 0.74rem; }
.book-foot { margin-top: 12px; font-size: 0.76rem; color: var(--muted); }

/* ------------------------------------------------------------------ blocks */
main { counter-reset: sect; }
.block { margin-bottom: 50px; scroll-margin-top: 96px; }
.block > h2 {
  display: flex; align-items: baseline; gap: 12px; padding-bottom: 12px; margin-bottom: 18px;
  border-bottom: 1px solid var(--line); max-width: 46ch;
}
.block > h2::before {
  content: "[" counter(sect, decimal-leading-zero) "]"; counter-increment: sect;
  font: 800 0.74rem/1 var(--mono); color: var(--back); flex: none;
}

.mini-nav {
  display: flex; align-items: center; gap: 7px; flex-wrap: wrap; padding: 11px 13px;
  background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--back);
  border-radius: 6px; margin-bottom: 28px;
}
.mini-label { font-size: 0.67rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-right: 4px; }
.mini-nav a {
  font-size: 0.78rem; text-decoration: none; color: var(--text-soft); padding: 4px 9px; border: 1px solid var(--line);
  border-radius: 4px;
  transition: border-color var(--fast) var(--ease), color var(--fast) var(--ease), transform var(--fast) var(--ease);
}
.mini-nav a:hover { border-color: var(--back); color: var(--text); transform: translateY(-1px); }

.note { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--back); padding: 15px 17px; border-radius: 6px; margin: 0 0 28px; }
.note p { margin: 6px 0 0; color: var(--text-soft); font-size: 0.93rem; }
.msg-tag { font-size: 0.65rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--back); font-weight: 700; }
.note-warn { border-left-color: var(--warn); background: var(--warn-wash); }
.note-warn .msg-tag { color: var(--warn); }

/* ------------------------------------------------------------------ price ladder */
.ladder { margin: 22px 0 30px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; }
.ladder-head { display: grid; grid-template-columns: 1fr 1fr; gap: 0; font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--line); }
.ladder-head span { padding: 10px 14px; }
.ladder-head span + span { border-left: 1px solid var(--line); }
.ladder-row { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--line-soft); transition: background var(--fast) var(--ease); }
.ladder-row:last-child { border-bottom: 0; }
.ladder-row:hover { background: var(--panel-2); }
.ladder-cell { position: relative; display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding: 9px 14px; overflow: hidden; }
.ladder-cell + .ladder-cell { border-left: 1px solid var(--line-soft); }
.depth-bar { position: absolute; inset: 0 auto 0 0; width: 100%; transform-origin: left center; transition: transform var(--fast) var(--ease); }
.ladder-cell.back .depth-bar { background: linear-gradient(90deg, rgba(76, 141, 255, 0.26), rgba(76, 141, 255, 0.05)); }
.ladder-cell.lay .depth-bar { background: linear-gradient(90deg, rgba(255, 95, 126, 0.24), rgba(255, 95, 126, 0.05)); }
.ladder-row:hover .depth-bar { transform: scaleY(1.06) scaleX(1.02); }
.ladder-price, .ladder-size { position: relative; font-size: 0.84rem; }
.ladder-cell.back .ladder-price { color: var(--back); font-weight: 800; }
.ladder-cell.lay .ladder-price { color: var(--lay); font-weight: 800; }
.ladder-size { color: var(--text-soft); font-size: 0.79rem; }
.ladder-foot { padding: 12px 14px; border-top: 1px solid var(--line); background: var(--panel-2); font-size: 0.85rem; color: var(--text-soft); }
.ladder-foot p { margin: 0; }

/* ------------------------------------------------------------------ fee rows */
.fees { margin: 20px 0 28px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; }
.fee-row { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding: 11px 15px; border-bottom: 1px solid var(--line-soft); margin: 0; transition: background var(--fast) var(--ease); }
.fee-row:last-child { border-bottom: 0; }
.fee-row:hover { background: var(--panel-2); }
.fee-k { font-size: 0.8rem; color: var(--text-soft); }
.fee-v { font-size: 0.83rem; font-weight: 800; color: var(--warn); white-space: nowrap; }
.fee-row.head { background: var(--panel-2); }
.fee-row.head .fee-k, .fee-row.head .fee-v { color: var(--muted); font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; }

/* ------------------------------------------------------------------ position split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 22px 0 28px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--panel); }
.split-side { padding: 17px 18px; }
.split-side + .split-side { border-left: 1px solid var(--line); background: var(--panel-2); }
.pos-k { display: block; font-size: 0.66rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-bottom: 9px; }
.pos-v { display: block; font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; }
.pos-v.green { color: var(--ok); }
.pos-v.red { color: var(--lay); }
.split-side p { margin: 0; font-size: 0.89rem; color: var(--text-soft); }

/* ------------------------------------------------------------------ stats */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(158px, 1fr)); gap: 12px; margin: 22px 0 28px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 15px 16px; transition: transform var(--fast) var(--ease), border-color var(--fast) var(--ease); }
.stat:hover { transform: translateY(-2px); border-color: var(--back); }
.stat-k { display: block; font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.stat-v { display: block; font-size: 1.24rem; font-weight: 800; }
.stat-v.back { color: var(--back); }
.stat-v.lay { color: var(--lay); }
.stat-v.ok { color: var(--ok); }
.stat p { margin: 7px 0 0; font-size: 0.8rem; color: var(--muted); }

/* ------------------------------------------------------------------ rail */
.rail { margin: 24px 0 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 19px 19px 8px; }
.rail-list { list-style: none; margin: 0; padding: 0; }
.rail-stop { position: relative; display: flex; gap: 14px; padding: 0 0 21px; margin: 0; }
.rail-stop:last-child { padding-bottom: 5px; }
.rail-stop .step-num {
  flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 6px;
  background: var(--back-wash); border: 1px solid var(--back); color: var(--back); font-size: 0.72rem; font-weight: 800;
}
.rail-stop.lay .step-num { background: var(--lay-wash); border-color: var(--lay); color: var(--lay); }
.rail-stop.done .step-num { background: var(--ok-wash); border-color: var(--ok); color: var(--ok); }
.rail-stop .rail { position: absolute; left: 14px; top: 32px; bottom: 0; width: 1px; background: var(--line); }
.rail-stop b { display: block; font-size: 0.95rem; }
.rail-stop p { margin: 3px 0 4px; font-size: 0.91rem; color: var(--text-soft); }
.rail-stop .at { display: block; font-size: 0.67rem; letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }

/* ------------------------------------------------------------------ chips */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 25px; }
.chip {
  font-size: 0.69rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 6px 11px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); color: var(--text-soft);
  transition: transform var(--fast) var(--ease), color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}
.chip:hover { transform: translateY(-1px); }
.chip.c1 { color: var(--back); border-color: var(--back); background: var(--back-wash); }
.chip.c2 { color: var(--lay); border-color: var(--lay); background: var(--lay-wash); }
.chip.c3 { color: var(--ok); border-color: var(--ok); background: var(--ok-wash); }
.chip.c4 { color: var(--warn); border-color: var(--warn); background: var(--warn-wash); }

/* ------------------------------------------------------------------ checks */
.checks { margin: 20px 0 28px; }
.check-step {
  display: flex; gap: 13px; align-items: flex-start; padding: 13px 15px; background: var(--panel);
  border: 1px solid var(--line); border-left: 3px solid var(--back); border-radius: 6px; margin-bottom: 9px;
  transition: transform var(--fast) var(--ease), border-color var(--fast) var(--ease);
}
.check-step:hover { transform: translateX(2px); border-left-color: var(--ok); }
.check-step .num { flex: none; font-size: 0.72rem; font-weight: 800; color: var(--back); padding-top: 3px; }
.check-step b { display: block; font-size: 0.94rem; }
.check-step p { margin: 3px 0 0; font-size: 0.9rem; color: var(--text-soft); }

/* ------------------------------------------------------------------ verdict */
.verdict { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 22px 0 28px; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.verdict-side { padding: 17px 18px; background: var(--panel); }
.verdict-side + .verdict-side { border-left: 1px solid var(--line); background: var(--panel-2); }
.verdict-side .side-tag { display: inline-block; margin-bottom: 11px; padding: 3px 8px; }
.verdict-side ul { margin: 0; padding-left: 1.1em; }
.verdict-side li { font-size: 0.9rem; color: var(--text-soft); }

/* ------------------------------------------------------------------ tables */
.table-wrap { margin: 22px 0 28px; overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); }
table.data { width: 100%; border-collapse: collapse; font-size: 0.89rem; }
table.data caption { text-align: left; font-size: 0.66rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); padding: 11px 14px; border-bottom: 1px solid var(--line); }
table.data thead th { text-align: left; font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); padding: 10px 14px; border-bottom: 1px solid var(--line); }
table.data td { padding: 11px 14px; border-bottom: 1px solid var(--line-soft); vertical-align: top; color: var(--text-soft); }
table.data tbody tr:last-child td { border-bottom: 0; }
table.data tbody tr { transition: background var(--fast) var(--ease); }
table.data tbody tr:hover { background: var(--panel-2); }
table.data td strong { color: var(--text); }

/* ------------------------------------------------------------------ lists */
ul.plain, ol.plain { list-style: none; padding-left: 0; }
ul.plain > li, ol.plain > li { padding-left: 22px; position: relative; }
ul.plain > li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 8px; border-radius: 2px; background: var(--muted); }
ol.plain { counter-reset: pl; }
ol.plain > li { counter-increment: pl; }
ol.plain > li::before { content: counter(pl) "."; position: absolute; left: 0; font-family: var(--mono); font-weight: 800; color: var(--back); font-size: 0.85rem; }
ul.dossier > li { padding: 12px 0 12px 22px; border-bottom: 1px solid var(--line-soft); margin: 0; }
ul.dossier > li:last-child { border-bottom: 0; }
ul.dossier > li::before { background: var(--back); }
ul.dossier b { display: block; font-size: 0.94rem; }
.why { display: block; font-size: 0.85rem; color: var(--text-soft); margin-top: 3px; }

/* ------------------------------------------------------------------ next step */
.next-step {
  display: flex; gap: 22px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  margin: 32px 0 8px; padding: 20px 22px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; box-shadow: 0 16px 34px rgba(0, 0, 0, 0.3);
}
.next-step h2 { font-size: 1.16rem; margin: 4px 0 6px; }
.next-step p { margin: 0; color: var(--text-soft); font-size: 0.92rem; max-width: 58ch; }
.next-step .kicker { font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ok); font-weight: 800; }

/* ------------------------------------------------------------------ faq */
.faq { margin: 22px 0 10px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-left: 3px solid var(--line); border-radius: 6px; margin-bottom: 10px; transition: border-color var(--fast) var(--ease); }
.faq details:hover { border-left-color: var(--back); }
.faq summary { cursor: pointer; padding: 14px 17px; font-weight: 700; font-size: 0.96rem; }
.faq .faq-a { padding: 0 17px 15px; color: var(--text-soft); font-size: 0.92rem; }
.faq .faq-a p { margin: 0; }
.faq details[open] { border-left-color: var(--ok); }

/* ------------------------------------------------------------------ disclosure + footer */
.disclosure {
  margin-top: 36px; padding: 17px 19px; background: var(--warn-wash); border: 1px solid var(--line);
  border-left: 3px solid var(--warn); border-radius: 6px; font-size: 0.87rem; color: var(--text-soft);
}
.link-out { color: var(--ok); font-weight: 700; }

.footer { border-top: 1px solid var(--line); background: #0b111b; padding: 36px 22px 42px; }
.foot-grid { max-width: var(--max); margin: 0 auto 22px; display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 26px; }
.foot-grid strong { display: block; font-size: 0.67rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.foot-grid a { display: block; font-size: 0.88rem; text-decoration: none; color: var(--text-soft); padding: 2px 0; }
.foot-grid a:hover { color: var(--text); text-decoration: underline; }
.foot-grid .brand { display: inline-flex; margin-bottom: 10px; font-size: 0.98rem; }
.foot-grid p { font-size: 0.86rem; color: var(--text-soft); max-width: 46ch; margin: 0; }
.fine { max-width: var(--max); margin: 0 auto; font-size: 0.78rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 18px; }

@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .split, .verdict { grid-template-columns: 1fr; }
  .split-side + .split-side, .verdict-side + .verdict-side { border-left: 0; border-top: 1px solid var(--line); }
  .ladder-head, .ladder-row { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}