:root {
  --ink: #0d1b2e;
  --paper: #f6f8fb;
  --surface: #ffffff;
  --reactor: #0468bf;
  --reactor-2: #0487d9;
  --reactor-soft: #e2edf8;
  --steel: #56657b;
  --rule: #d6dfec;
  --settled: #0f7a52;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --ink: #e6ecf5;
    --paper: #0b1220;
    --surface: #111a2c;
    --reactor: #4fa3f0;
    --reactor-2: #8ccaf7;
    --reactor-soft: #13284a;
    --steel: #93a2b8;
    --rule: #1f2b3f;
    --settled: #3ccf8e;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --ink: #e6ecf5;
  --paper: #0b1220;
  --surface: #111a2c;
  --reactor: #4fa3f0;
  --reactor-2: #8ccaf7;
  --reactor-soft: #13284a;
  --steel: #93a2b8;
  --rule: #1f2b3f;
  --settled: #3ccf8e;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, p, dl, dd, ol, ul, figure { margin: 0; }
ol, ul { padding: 0; list-style: none; }
address { font-style: normal; }
a { color: var(--reactor); text-underline-offset: 3px; }
code, .mono { font-family: var(--mono); font-feature-settings: 'zero' 1; }
:focus-visible { outline: 2px solid var(--reactor); outline-offset: 3px; border-radius: 2px; }

.wrap { width: min(1072px, 100% - 48px); margin-inline: auto; }
.skip {
  position: absolute; left: 16px; top: -48px; z-index: 10;
  background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 4px;
}
.skip:focus { top: 12px; }

/* Header */
.top { display: flex; align-items: center; gap: 24px; padding-top: 24px; padding-bottom: 24px; }
.lg-a { fill: var(--reactor); }
.lg-b { fill: var(--reactor-2); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.mark { width: 34px; height: 38px; flex: none; }
.wordmark { font: 800 20px/1 Montserrat, var(--sans); letter-spacing: 0.01em; color: var(--reactor); }
.wordmark span { color: var(--reactor-2); }
.top nav { margin-left: auto; display: flex; gap: 28px; }
.top nav a { color: var(--steel); text-decoration: none; font-size: 15px; font-weight: 500; }
.top nav a:hover { color: var(--ink); }

/* Hero */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px; align-items: center;
  padding-top: 72px; padding-bottom: 96px;
}
h1 {
  font-size: clamp(38px, 5.4vw, 60px); line-height: 1.04;
  font-weight: 600; letter-spacing: -0.028em; max-width: 15ch; text-wrap: balance;
}
.lede { margin-top: 24px; max-width: 50ch; font-size: 19px; color: var(--steel); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.btn {
  display: inline-flex; align-items: center; min-height: 46px; padding: 0 20px;
  border-radius: 6px; font-weight: 500; font-size: 16px; text-decoration: none;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn-primary { background: var(--reactor); color: #fff; }
.btn-primary:hover { background: color-mix(in srgb, var(--reactor) 86%, var(--ink)); }
:root[data-theme='dark'] .btn-primary { color: #071022; }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .btn-primary { color: #071022; } }
.btn-quiet { border: 1px solid var(--rule); color: var(--ink); }
.btn-quiet:hover { border-color: var(--steel); }
.facts { display: flex; flex-wrap: wrap; gap: 14px 40px; margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--rule); }
.facts dt { font-size: 13px; color: var(--steel); }
.facts dd { font-weight: 500; }

/* Payment route */
.trace {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 10px;
  padding: 20px 24px 12px;
}
.trace-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 14px; border-bottom: 1px dashed var(--rule);
  font-size: 14px; color: var(--steel);
}
.status { display: inline-flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 13px; color: var(--settled); }
.status .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.trace.running .status { color: var(--reactor); }

.route { position: relative; padding: 8px 0; --progress: 1; }
.route::before, .route::after {
  content: ''; position: absolute; left: 7px; top: 30px; bottom: 30px; width: 2px;
}
.route::before { background: var(--rule); }
.route::after {
  background: var(--reactor); transform-origin: top;
  transform: scaleY(var(--progress)); transition: transform .5s cubic-bezier(.4, 0, .2, 1);
}
.route li {
  position: relative; display: grid; grid-template-columns: 1fr auto; column-gap: 16px;
  padding: 12px 0 12px 36px; align-items: baseline;
}
.route li + li { border-top: 1px solid color-mix(in srgb, var(--rule) 55%, transparent); }
.route li::before {
  content: ''; position: absolute; left: 2px; top: 50%; width: 12px; height: 12px; margin-top: -6px;
  border-radius: 50%; background: var(--surface); border: 2px solid var(--rule); z-index: 1;
  transition: border-color .2s, background-color .2s, box-shadow .2s;
}
.node { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 16px; }
.node svg { width: 18px; height: 20px; }
.note { grid-column: 1; font-size: 14px; color: var(--steel); }
.state {
  grid-column: 2; grid-row: 1 / span 2; align-self: center;
  font-size: 13px; color: var(--reactor); background: var(--reactor-soft);
  padding: 3px 8px; border-radius: 4px; transition: opacity .25s;
}
.route li.lit::before { border-color: var(--reactor); background: var(--reactor); }
.route li[data-node='bank'].lit .state { color: var(--settled); background: color-mix(in srgb, var(--settled) 14%, transparent); }
.route li[data-node='bank'].lit::before { border-color: var(--settled); background: var(--settled); }
.route li:not(.lit) .state { opacity: 0; }
.route li.core { margin: 4px -12px; padding-left: 48px; padding-right: 12px; background: var(--reactor-soft); border-radius: 6px; border-top-color: transparent; }
.route li.core + li { border-top-color: transparent; }
.route li.core::before { left: 14px; }

/* Sections */
section:not(.hero) { padding-top: 88px; padding-bottom: 88px; border-top: 1px solid var(--rule); }
h2 { font-size: clamp(28px, 3.4vw, 36px); line-height: 1.15; font-weight: 600; letter-spacing: -0.02em; }
.section-lede { margin-top: 12px; color: var(--steel); max-width: 56ch; }

.svc { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 40px; border-top: 1px solid var(--rule); }
.svc li { padding: 28px 32px 32px 0; border-bottom: 1px solid var(--rule); }
.svc li:nth-child(even) { padding-left: 32px; padding-right: 0; border-left: 1px solid var(--rule); }
.svc h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; transition: color .15s; }
.svc p { color: var(--steel); max-width: 44ch; }

.company { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 64px; }
.company-text p { margin-top: 16px; max-width: 42ch; }
.company-text h2 + p { margin-top: 24px; }
.record { background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; padding: 4px 28px; }
.record h3 { font-size: 15px; font-weight: 600; color: var(--steel); padding: 16px 0 12px; border-bottom: 1px solid var(--rule); }
.record dl > div { display: grid; grid-template-columns: 190px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.record dl > div:last-child { border-bottom: 0; }
.record dt { color: var(--steel); font-size: 15px; }
.record dd { font-size: 16px; }
.record .mono { font-size: 15.5px; }
.copy {
  margin-left: 8px; font: 500 13px var(--sans); color: var(--reactor); background: none;
  border: 1px solid var(--rule); border-radius: 4px; padding: 2px 8px; cursor: pointer;
}
.copy:hover { border-color: var(--reactor); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr 1.1fr; margin-top: 40px; border-top: 1px solid var(--rule); }
.channel { display: flex; flex-direction: column; gap: 6px; padding: 28px 28px 28px 0; text-decoration: none; color: var(--ink); }
.channel + .channel { padding-left: 28px; border-left: 1px solid var(--rule); }
.channel .label { font-size: 14px; color: var(--steel); }
.channel .value { font-size: clamp(20px, 2.2vw, 26px); font-weight: 500; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.channel .value.mono { white-space: nowrap; font-size: clamp(19px, 2vw, 24px); }
.channel .value.small { font-size: 17px; font-weight: 400; letter-spacing: 0; }
a.channel .value { color: var(--reactor); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 5px; text-decoration-color: color-mix(in srgb, var(--reactor) 35%, transparent); }
a.channel:hover .value { text-decoration-color: currentColor; }

.foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-top: 28px; padding-bottom: 40px; border-top: 1px solid var(--rule); font-size: 14px; color: var(--steel); }

.svc li.wide { grid-column: 1 / -1; padding-left: 0; border-left: 0; }
.pledge { margin-top: 32px; font-size: 20px; font-weight: 500; letter-spacing: -0.01em; max-width: 46ch; }

.about-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 56px; margin-top: 32px; align-items: start; }
.prose p + p { margin-top: 16px; }
.prose p { max-width: 64ch; }
.mission { border-left: 3px solid var(--reactor); padding: 4px 0 4px 24px; }
.mission h3, .itpark h3 { font-size: 15px; font-weight: 600; color: var(--steel); margin-bottom: 10px; }
.mission p { font-size: 21px; line-height: 1.45; letter-spacing: -0.01em; }
.itpark { margin-top: 56px; padding: 24px 28px; background: var(--surface); border: 1px solid var(--rule); border-radius: 10px; }
.itpark p { color: var(--steel); max-width: 80ch; }

.people { margin-top: 40px; display: grid; gap: 0; border-top: 1px solid var(--rule); }
.person { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 40px; padding: 36px 0; border-bottom: 1px solid var(--rule); align-items: start; }
.person img { width: 200px; height: 250px; object-fit: cover; border-radius: 8px; background: var(--rule); }
.person h3 { font-size: 24px; font-weight: 600; letter-spacing: -0.015em; }
.person .role { color: var(--reactor); font-weight: 500; margin: 2px 0 14px; }
.person-text > p:not(.role) { max-width: 66ch; }
.person blockquote { margin: 18px 0 0; padding-left: 16px; border-left: 2px solid var(--rule); font-size: 18px; font-style: italic; color: var(--ink); }
.person details { margin-top: 16px; }
.person summary { cursor: pointer; color: var(--reactor); font-weight: 500; font-size: 15px; width: fit-content; }
.person details p { margin-top: 10px; color: var(--steel); max-width: 66ch; }
.maplink { margin-top: 6px; font-size: 15px; }

/* Privacy page */
.doc { max-width: 760px; padding-top: 48px; padding-bottom: 88px; }
.doc h1 { font-size: clamp(32px, 4.4vw, 44px); max-width: none; }
.doc .meta { margin-top: 12px; color: var(--steel); font-size: 15px; }
.doc h2 { font-size: 22px; margin-top: 44px; margin-bottom: 12px; }
.doc p, .doc ul { margin-top: 12px; }
.doc ul { list-style: disc; padding-left: 22px; }
.doc li + li { margin-top: 6px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 40px; padding-bottom: 72px; }
  .company { grid-template-columns: 1fr; gap: 40px; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .channel + .channel { padding-left: 0; border-left: 0; border-top: 1px solid var(--rule); }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  body { font-size: 16px; }
  .top nav { display: none; }
  .lede { font-size: 17px; }
  .btn { width: 100%; justify-content: center; }
  .trace { padding: 16px 16px 8px; }
  section:not(.hero) { padding-top: 64px; padding-bottom: 64px; }
  .svc { grid-template-columns: 1fr; }
  .svc li, .svc li:nth-child(even) { padding: 24px 0; border-left: 0; }
  .person { grid-template-columns: 1fr; gap: 20px; }
  .person img { width: 160px; height: 200px; }
  .mission p { font-size: 19px; }
  .itpark { padding: 20px; }
  .record { padding: 4px 16px 8px; }
  .record dl > div { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}