:root {
  --ink: #0f1b21;
  --ink-soft: #3f5560;
  --muted: #738a94;
  --mist: #eef2f6;
  --paper: #ffffff;
  --rule: #d7e0e6;
  --rule-strong: #b9c8d1;
  --petrol: #0b3b4d;
  --petrol-deep: #06222d;
  --petrol-wash: #e2eef2;
  --coral: #d94a22;
  --coral-wash: #fce7e0;
  --emerald: #0f7357;
  --emerald-wash: #dcf0e9;
  --amber: #a86f08;
  --amber-wash: #f8eed6;
  --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: 1090px;
}

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

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

body {
  margin: 0;
  background: var(--mist);
  background-image: linear-gradient(90deg, rgba(11, 59, 77, 0.045) 1px, transparent 1px);
  background-size: 44px 100%;
  color: var(--ink);
  font: 400 clamp(16px, 0.55vw + 14px, 17px) / 1.6 var(--sans);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--sans); line-height: 1.13; letter-spacing: -0.02em; margin: 0; font-weight: 700; }
h1 { font-size: clamp(2.05rem, 4.4vw, 3.15rem); }
h2 { font-size: clamp(1.4rem, 2.1vw, 1.82rem); }
h3 { font-size: 1.08rem; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
a { color: var(--petrol); text-underline-offset: 3px; }
ul, ol { padding-left: 1.15em; margin: 0 0 1em; }
li { margin-bottom: 0.45em; }
strong { font-weight: 650; }
em { font-style: italic; }

.mono, .kicker, .crumb-line, .mini-label, .msg-tag, .chip, .rail-stage small, .meter figcaption,
.method-speed span, .route-node small { font-family: var(--mono); }

.skip { position: absolute; left: -9999px; top: 0; padding: 12px 18px; background: var(--petrol); color: #fff; z-index: 30; text-decoration: none; }
.skip:focus { left: 12px; top: 12px; }

/* ---------------------------------------------------------------- masthead */
.top { position: sticky; top: 0; z-index: 20; background: var(--petrol-deep); border-bottom: 4px solid var(--coral); }
.bar { max-width: var(--max); margin: 0 auto; padding: 12px 22px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.brand {
  display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none;
  font-weight: 700; letter-spacing: -0.015em; margin-right: auto; font-size: 1.08rem;
}
.brand .mark {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 7px;
  background: var(--coral); color: #fff; font: 700 0.72rem/1 var(--mono); letter-spacing: 0.03em;
}
.menu { display: flex; gap: 3px; flex-wrap: wrap; }
.menu a {
  color: #a9c6d0; text-decoration: none; font-size: 0.83rem; padding: 6px 10px; border-radius: 7px;
  border: 1px solid transparent;
  transition: color var(--fast) var(--ease), background var(--fast) var(--ease), border-color var(--fast) var(--ease);
}
.menu a:hover { color: #fff; background: #10536b; border-color: #1a6c88; }
.menu a[aria-current="page"] { color: #fff; background: var(--coral); border-color: var(--coral); }

/* ---------------------------------------------------------------- buttons */
.btn, .ghost {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 9px;
  font-weight: 650; font-size: 0.9rem; 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(--coral); color: #fff; }
.btn:hover { background: #b83a17; transform: translateY(-1px); }
.ghost { background: transparent; color: var(--petrol); border-color: var(--rule-strong); }
.ghost:hover { border-color: var(--petrol); background: var(--petrol-wash); transform: translateY(-1px); }
.top .btn { padding: 8px 14px; font-size: 0.82rem; }

/* ---------------------------------------------------------------- shell */
.shell { max-width: var(--max); margin: 0 auto; padding: 0 22px 72px; }
main { display: block; }

.page-hero { padding: clamp(36px, 5.2vw, 60px) 0 26px; border-bottom: 1px solid var(--rule); margin-bottom: 34px; }
.crumb-line { font-size: 0.73rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.eyebrow {
  display: inline-block; font-size: 0.71rem; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--petrol); border: 1px solid var(--petrol); background: var(--petrol-wash);
  padding: 4px 10px; border-radius: 6px; margin-bottom: 16px;
}
.page-hero h1 { max-width: 25ch; }
.lede { max-width: 64ch; margin-top: 16px; color: var(--ink-soft); font-size: 1.06rem; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

/* ---------------------------------------------------------------- blocks */
.block { margin-bottom: 48px; scroll-margin-top: 96px; }
.block > h2 { padding-bottom: 12px; margin-bottom: 18px; border-bottom: 2px solid var(--rule-strong); }
.block h2 { max-width: 32ch; }

.mini-nav {
  display: flex; align-items: center; gap: 7px; flex-wrap: wrap; padding: 12px 14px;
  background: var(--paper); border: 1px solid var(--rule); border-radius: 10px; margin-bottom: 30px;
}
.mini-label { font-size: 0.7rem; letter-spacing: 0.11em; text-transform: uppercase; color: var(--muted); margin-right: 4px; }
.mini-nav a {
  font-size: 0.8rem; text-decoration: none; color: var(--ink); padding: 4px 9px; border: 1px solid var(--rule);
  border-radius: 6px; background: var(--mist);
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease), transform var(--fast) var(--ease);
}
.mini-nav a:hover { border-color: var(--petrol); background: var(--petrol-wash); transform: translateY(-1px); }

.note { background: var(--paper); border: 1px solid var(--rule); border-left: 4px solid var(--petrol); padding: 16px 18px; border-radius: 9px; margin: 0 0 30px; }
.note p { margin: 6px 0 0; color: var(--ink-soft); font-size: 0.94rem; }
.msg-tag { font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--petrol); }
.note-warn { border-left-color: var(--amber); background: var(--amber-wash); }
.note-warn .msg-tag { color: var(--amber); }

/* ---------------------------------------------------------------- transfer route */
.route { background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; padding: 22px 20px 18px; margin: 22px 0 10px; }
.route-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.route-head .kicker { font-size: 0.68rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); }
.route-head .chip { font-size: 0.72rem; color: var(--emerald); background: var(--emerald-wash); border: 1px solid #a9d8c7; padding: 3px 10px; border-radius: 999px; }
.route-line { position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.route-line::before { content: ""; position: absolute; left: 6%; right: 6%; top: 13px; height: 4px; border-radius: 3px; background: linear-gradient(90deg, var(--coral), var(--amber), var(--petrol), var(--emerald)); opacity: 0.85; }
.route-node { position: relative; text-align: center; }
.route-node .dot { position: relative; z-index: 1; display: inline-block; width: 22px; height: 22px; border-radius: 50%; background: var(--paper); border: 3px solid var(--petrol); transition: transform var(--fast) var(--ease), border-color var(--fast) var(--ease); }
.route-node:hover .dot { transform: scale(1.18); border-color: var(--coral); }
.route-node.done .dot { border-color: var(--emerald); }
.route-node strong { display: block; margin-top: 10px; font-size: 0.9rem; }
.route-node small { display: block; color: var(--muted); font-size: 0.68rem; letter-spacing: 0.05em; text-transform: uppercase; margin-top: 3px; }

/* ---------------------------------------------------------------- method cards + speed meter */
.method-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 22px 0 8px; }
.method {
  background: var(--paper); border: 1px solid var(--rule); border-top: 3px solid var(--petrol);
  border-radius: 11px; padding: 20px 18px 18px;
  transition: transform var(--fast) var(--ease), border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
}
.method:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(6, 34, 45, 0.1); }
.method .kicker { display: block; font-size: 0.68rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.method h3 { margin-bottom: 6px; }
.method p { font-size: 0.9rem; color: var(--ink-soft); margin: 0 0 14px; }
.method-speed { display: flex; align-items: center; gap: 10px; }
.method-speed .track { flex: 1; height: 8px; border-radius: 5px; background: var(--mist); border: 1px solid var(--rule); overflow: hidden; }
.method-speed .fill { display: block; height: 100%; background: linear-gradient(90deg, var(--emerald), var(--coral)); }
.method-speed span { font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); white-space: nowrap; }

/* ---------------------------------------------------------------- two ledgers */
.ledgers { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 22px 0 8px; background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; overflow: hidden; }
.ledger { padding: 20px; }
.ledger + .ledger { border-left: 1px solid var(--rule); }
.ledger-op { background: var(--petrol-wash); }
.ledger-you { background: var(--coral-wash); }
.ledger .kicker { display: block; font-size: 0.67rem; letter-spacing: 0.13em; text-transform: uppercase; margin-bottom: 10px; }
.ledger-op .kicker { color: var(--petrol); }
.ledger-you .kicker { color: var(--coral); }
.ledger h3 { margin-bottom: 8px; }
.ledger p { font-size: 0.9rem; color: var(--ink-soft); margin: 0; }

/* ---------------------------------------------------------------- fee meter strip */
.meter { margin: 22px 0 8px; background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; padding: 20px; }
.meter figcaption { font-size: 0.68rem; letter-spacing: 0.11em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.meter-row { display: grid; grid-template-columns: 150px 1fr 88px; gap: 14px; align-items: center; padding: 9px 0; border-top: 1px solid var(--rule); }
.meter-row:first-of-type { border-top: 0; }
.meter-row .name { font-size: 0.88rem; font-weight: 600; }
.meter-row .track { height: 12px; border-radius: 6px; background: var(--mist); border: 1px solid var(--rule); overflow: hidden; }
.meter-row .fill { display: block; height: 100%; background: var(--petrol); }
.meter-row.warn .fill { background: var(--amber); }
.meter-row .val { font-family: var(--mono); font-size: 0.8rem; color: var(--ink-soft); text-align: right; }

/* ---------------------------------------------------------------- tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--rule); border-radius: 12px; background: var(--paper); margin: 22px 0 8px; }
table.data { border-collapse: collapse; width: 100%; min-width: 660px; font-size: 0.89rem; }
table.data caption { text-align: left; padding: 14px 16px 0; font-size: 0.8rem; color: var(--muted); }
table.data th, table.data td { text-align: left; padding: 12px 16px; border-top: 1px solid var(--rule); vertical-align: top; }
table.data thead th { background: var(--petrol-deep); color: #fff; font-size: 0.72rem; letter-spacing: 0.09em; text-transform: uppercase; font-weight: 650; border-top: 0; white-space: nowrap; }
table.data tbody tr { transition: background var(--fast) var(--ease); }
table.data tbody tr:hover { background: var(--petrol-wash); }
table.data td:first-child { font-weight: 650; color: var(--ink); }

/* ---------------------------------------------------------------- states chips */
.states { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0 8px; }
.chip { font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--rule-strong); background: var(--paper); color: var(--ink-soft); }
.chip.ok { color: var(--emerald); border-color: #a9d8c7; background: var(--emerald-wash); }
.chip.wait { color: var(--amber); border-color: #e3cf9a; background: var(--amber-wash); }
.chip.stop { color: var(--coral); border-color: #efb7a6; background: var(--coral-wash); }

/* ---------------------------------------------------------------- faq */
.faq { display: grid; gap: 10px; margin: 22px 0 8px; }
.faq-item { background: var(--paper); border: 1px solid var(--rule); border-radius: 11px; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 16px 18px; font-weight: 650; font-size: 1rem; list-style: none; display: flex; gap: 12px; align-items: flex-start; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before { content: "+"; font-family: var(--mono); color: var(--coral); flex: none; font-size: 1.15rem; line-height: 1.25; }
.faq-item[open] summary::before { content: "–"; }
.faq-body { padding: 0 18px 6px 46px; color: var(--ink-soft); font-size: 0.94rem; }
.faq-body p { margin: 0 0 14px; }

/* ---------------------------------------------------------------- lists */
ul.plain, ol.plain { list-style: none; padding-left: 0; margin: 18px 0 8px; }
ul.plain > li, ol.plain > li {
  background: var(--paper); border: 1px solid var(--rule); border-left: 3px solid var(--rule-strong);
  border-radius: 9px; padding: 13px 16px; margin-bottom: 10px;
  transition: border-color var(--fast) var(--ease), transform var(--fast) var(--ease);
}
ul.plain > li:hover, ol.plain > li:hover { border-left-color: var(--petrol); transform: translateX(2px); }
ol.plain { counter-reset: step; }
ol.plain > li { counter-increment: step; padding-left: 52px; position: relative; }
ol.plain > li::before { content: counter(step, decimal-leading-zero); position: absolute; left: 16px; top: 13px; font-family: var(--mono); font-size: 0.78rem; color: var(--coral); letter-spacing: 0.06em; }
ul.checklist > li { border-left-color: var(--emerald); }

/* ---------------------------------------------------------------- cta + disclosure */
.next-step {
  display: flex; align-items: center; gap: 22px; justify-content: space-between; flex-wrap: wrap;
  background: var(--petrol-deep); color: #dce8ed; border-radius: 12px; padding: 24px 26px; margin: 42px 0 26px;
}
.next-step h2 { color: #fff; font-size: 1.22rem; margin: 4px 0 6px; }
.next-step p { margin: 0; color: #a9c6d0; font-size: 0.9rem; max-width: 52ch; }
.next-step .kicker { display: inline-block; font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--coral); }
.next-step .btn { background: var(--coral); color: #fff; }
.next-step .btn:hover { background: #b83a17; }

.disclosure { background: var(--paper); border: 1px solid var(--rule); border-radius: 10px; padding: 16px 18px; font-size: 0.85rem; color: var(--ink-soft); }
.disclosure strong { color: var(--ink); }
.link-out { color: var(--coral); font-weight: 650; }

/* ---------------------------------------------------------------- footer */
.footer { background: var(--petrol-deep); color: #9fbec9; padding: 46px 22px 30px; margin-top: 24px; }
.foot-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 30px; }
.footer .brand { color: #fff; margin-bottom: 10px; }
.footer p { font-size: 0.86rem; color: #7fa2ae; }
.footer strong { display: block; color: #fff; font-size: 0.75rem; letter-spacing: 0.11em; text-transform: uppercase; margin-bottom: 12px; font-family: var(--mono); }
.footer a { display: block; color: #bcd3db; text-decoration: none; font-size: 0.88rem; padding: 4px 0; transition: color var(--fast) var(--ease), transform var(--fast) var(--ease); }
.footer a:hover { color: #fff; transform: translateX(2px); }
.fine { max-width: var(--max); margin: 30px auto 0; font-size: 0.78rem; color: #789aa6; border-top: 1px solid #17414f; padding-top: 20px; }

/* ---------------------------------------------------------------- narrow */
@media (max-width: 900px) {
  .method-grid { grid-template-columns: 1fr; }
  .ledgers { grid-template-columns: 1fr; }
  .ledger + .ledger { border-left: 0; border-top: 1px solid var(--rule); }
  .foot-grid { grid-template-columns: 1fr; gap: 22px; }
}
@media (max-width: 620px) {
  .bar { padding: 10px 16px; gap: 10px; }
  .shell { padding: 0 16px 56px; }
  .menu a { padding: 5px 8px; font-size: 0.79rem; }
  .route-line { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 10px; }
  .route-line::before { display: none; }
  .meter-row { grid-template-columns: 110px 1fr 70px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .method:hover, .btn:hover, .ghost:hover, .mini-nav a:hover, ul.plain > li:hover,
  ol.plain > li:hover, .footer a:hover, .route-node:hover .dot {
    transform: none;
  }
}