/* hrx.one - self-hosted, dependency-free presentation layer. */
:root {
  color-scheme: light;
  --ink: #101e32;
  --secondary: #526075;
  --blue: #2455eb;
  --lime: #d6f560;
  --mist: #f2f5fa;
  --line: #dce3ed;
  --white: #fff;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 6rem; }
body { margin: 0; font-size: 1rem; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button, .button { cursor: pointer; }
svg { display: block; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { line-height: 1.1; letter-spacing: -.045em; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 { font-size: clamp(3.3rem, 1.8rem + 3.2vw, 4.7rem); font-weight: 650; }
h2 { font-size: clamp(2.15rem, 1.4rem + 2vw, 3rem); font-weight: 620; }
h3 { font-size: 1.75rem; font-weight: 620; }
p { color: var(--secondary); }
::selection { background: var(--lime); color: var(--ink); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 5px; border-radius: 3px; }
[hidden] { display: none !important; }
.container { max-width: 1264px; padding-inline: 32px; margin-inline: auto; }
.section-space { padding-top: 100px; padding-bottom: 100px; }
.eyebrow { font-size: .75rem; font-weight: 650; letter-spacing: .095em; text-transform: uppercase; color: var(--secondary); }
.skip-link { position: absolute; left: 20px; top: -100px; z-index: 20; background: var(--ink); color: white; padding: 12px 20px; }
.skip-link:focus { top: 10px; }
.site-header { border-bottom: 1px solid var(--line); background: white; }
.header-inner { min-height: 100px; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-symbol { width: 29px; height: 29px; fill: none; stroke: var(--blue); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.wordmark { font-size: 2.05rem; letter-spacing: -.06em; font-weight: 760; line-height: 1; }
.brand-dot { color: var(--blue); }
.brand-description { border-left: 1px solid var(--line); padding-left: 17px; margin-left: 10px; line-height: 1.25; font-size: .75rem; color: var(--secondary); }
nav { display: flex; align-items: center; gap: 33px; font-size: .875rem; font-weight: 550; }
nav a { min-height: 44px; display: inline-flex; align-items: center; gap: 12px; }
nav a:hover { color: var(--blue); }
.profile-link { border: 1px solid var(--line); border-radius: 7px; padding: 0 18px; }
.profile-link span { font-size: 1.1rem; }
.menu-toggle { display: none; }
.hero { display: grid; grid-template-columns: 1.04fr 1fr; gap: 54px; align-items: center; padding-top: 80px; padding-bottom: 77px; }
.hero > *, .transport-panel > *, .work-grid > *, .approach-grid > * { min-width: 0; }
.hero-copy > .eyebrow { margin-bottom: 26px; display: flex; gap: 9px; align-items: center; }
.small-cross { font-size: 1.3rem; color: var(--blue); font-weight: 400; line-height: 1; }
h1 span { color: var(--blue); }
.hero-description { max-width: 435px; font-size: 1.1rem; line-height: 1.75; margin-top: 24px; margin-bottom: 29px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 35px; padding: 15px 22px; min-height: 54px; border-radius: 7px; font-size: .875rem; font-weight: 620; border: 1px solid transparent; transition: background .18s, transform .18s; }
.button span { font-size: 1.35rem; line-height: 1; font-weight: 400; }
.button:hover { transform: translateY(-2px); }
.button-blue { color: white; background: var(--blue); }
.button-blue:hover { background: #1841c0; }
.hero-note { margin-top: 17px; font-size: .75rem; color: var(--secondary); }
.system-visual { position: relative; background: var(--mist); border: 1px solid var(--line); border-radius: 18px; padding: 25px 18px 0; }
.visual-heading { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding-inline: 8px; }
.visual-heading .eyebrow { font-size: .6875rem; }
.visual-index { font-size: .6875rem; color: var(--secondary); font-family: Consolas, monospace; }
.system-map { width: 100%; margin-top: 5px; }
.map-orbit { fill: none; stroke: #d8e0ec; stroke-width: 1; }
.map-routes { fill: none; stroke: var(--blue); stroke-width: 2; }
.map-secondary-route { stroke: #becce1; stroke-dasharray: 4 6; stroke-width: 1.5; }
.map-travel { fill: var(--blue); }
.map-node rect { fill: white; stroke: var(--line); }
.map-node path { fill: none; stroke: var(--blue); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.map-node text { fill: var(--ink); font-family: "Segoe UI", Arial, sans-serif; font-size: 14px; text-anchor: middle; font-weight: 550; }
.map-core rect { fill: var(--blue); }
.map-core .core-halo { fill: #e1e9ff; stroke: #c3d2ff; }
.map-core path { fill: none; stroke: var(--lime); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.map-core text { fill: white; text-anchor: middle; font-family: "Segoe UI", Arial, sans-serif; }
.core-label { font-size: 29px; font-weight: 650; letter-spacing: 1px; }
.core-description { font-size: 8px; letter-spacing: .8px; }
.visual-footer { border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 18px 8px; font-size: .75rem; color: var(--secondary); }
.visual-footer svg { width: 41px; height: 20px; fill: none; stroke: var(--blue); stroke-width: 1.7; }
.capabilities { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 96px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: .875rem; font-weight: 600; }
.capabilities-label { color: var(--secondary); font-weight: 400; font-size: .75rem; }
.capabilities > span:not(:first-child)::before { content: "+"; content: "+" / ""; color: #8190a3; margin-right: 13px; font-weight: 400; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 70px; margin-bottom: 43px; }
.section-heading .eyebrow { margin-bottom: 17px; }
.section-heading > p { max-width: 330px; font-size: 1rem; line-height: 1.8; }
.muted-heading { color: #7a8798; }
.transport-panel { background: var(--ink); color: white; border-radius: 18px; padding: 49px; display: grid; grid-template-columns: 1.12fr 1fr; gap: 70px; }
.transport-copy .eyebrow { color: var(--lime); margin-bottom: 23px; }
.transport-copy h3 { font-size: clamp(1.9rem, 1.3rem + 1.6vw, 2.6rem); line-height: 1.17; }
.transport-copy > p:not(.eyebrow) { color: #b6c4d6; line-height: 1.8; max-width: 438px; margin-top: 23px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.tags span { color: #d5deea; border: 1px solid #3d4b5e; border-radius: 5px; padding: 5px 9px; font-size: .75rem; }
.journey-diagram { border: 1px solid #364459; border-radius: 12px; padding: 25px; background: #19283d; }
.journey-top { display: flex; justify-content: space-between; gap: 12px; color: #d5deea; font-size: .75rem; border-bottom: 1px solid #3d4b5e; padding-bottom: 16px; }
.journey-top > span:last-child { color: var(--lime); font-size: 1.2rem; }
.journey-steps { list-style: none; padding: 0; margin: 23px 0 0; }
.journey-steps li { display: flex; gap: 18px; position: relative; padding-bottom: 23px; align-items: flex-start; }
.journey-steps li:last-child { padding-bottom: 0; }
.journey-steps li:not(:last-child)::before { content: ""; position: absolute; left: 16px; top: 33px; bottom: 0; width: 1px; background: #586b6e; }
.step-marker { position: relative; display: grid; place-items: center; flex: 0 0 33px; height: 33px; border: 1px solid #708747; border-radius: 50%; color: var(--lime); font-size: .6875rem; font-family: Consolas, monospace; }
.journey-steps strong { display: block; font-size: 1rem; line-height: 1.4; font-weight: 550; }
.journey-steps div > span { display: block; color: #b6c4d6; font-size: .75rem; margin-top: 2px; }
.work-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.work-card { border: 1px solid var(--line); border-radius: 14px; padding: 35px 38px 28px; }
.card-heading { display: flex; align-items: center; gap: 13px; margin-bottom: 27px; }
.card-heading svg { width: 28px; height: 28px; fill: none; stroke: var(--blue); stroke-width: 1.5; stroke-linejoin: round; stroke-linecap: round; }
.work-card h3 { line-height: 1.2; margin-bottom: 19px; }
.work-card > p { max-width: 440px; }
.work-card .card-caption { margin-top: 28px; padding-top: 19px; border-top: 1px solid var(--line); font-size: .75rem; }
.exploration { margin-top: 24px; background: var(--mist); border-radius: 8px; display: flex; align-items: center; padding: 20px 25px; gap: 25px; }
.exploration-label { white-space: nowrap; font-size: .875rem; font-weight: 600; }
.exploration-label > span { color: var(--blue); margin-right: 9px; }
.exploration p { font-size: .875rem; }
.exploration-status { color: var(--secondary); font-size: .75rem; margin-left: auto; white-space: nowrap; }
.approach-section { background: var(--mist); }
.approach-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 46px; margin-top: 55px; }
.approach-grid article { border-top: 1px solid #cbd5e3; padding-top: 27px; }
.approach-number { color: var(--blue); font-family: Consolas, monospace; font-size: .875rem; }
.approach-grid h3 { font-size: 1.3rem; letter-spacing: -.03em; line-height: 1.3; margin: 22px 0 14px; }
.approach-grid p { font-size: 1rem; line-height: 1.75; }
.closing { padding-block: 89px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.closing .eyebrow { margin-bottom: 20px; }
.closing h2 span { color: var(--blue); }
.button-outline { border-color: var(--line); flex-shrink: 0; }
.button-outline:hover { background: var(--mist); }
.footer { border-top: 1px solid var(--line); display: flex; align-items: center; gap: 25px; padding-block: 28px; color: var(--secondary); font-size: .75rem; }
.footer-brand { font-size: 1.65rem; font-weight: 750; color: var(--ink); letter-spacing: -.075em; }
.footer > span { margin-left: auto; }
.footer > span > span { padding-inline: 12px; color: #7a8798; }
.back-top { width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--ink); font-size: 1.25rem; }
@media (min-width: 87.5em) { .hero { padding-top: 92px; padding-bottom: 88px; } }
@media (max-width: 65.625em) {
  .hero { gap: 30px; }
  h1 { font-size: clamp(3rem, 1.8rem + 3vw, 4rem); }
  .transport-panel { padding: 35px; gap: 35px; }
  .section-heading { gap: 35px; }
  .capabilities { flex-wrap: wrap; justify-content: flex-start; padding-block: 24px; gap: 17px 25px; }
  .capabilities-label { width: 100%; }
  .exploration { flex-wrap: wrap; gap: 8px 20px; }
  .exploration-status { margin-left: 0; }
  .approach-grid { gap: 28px; }
}
@media (max-width: 47.5em) {
  .container { padding-inline: 24px; }
  .header-inner { min-height: 85px; flex-wrap: wrap; gap: 0 16px; padding-block: 20px; }
  .brand-description { font-size: .6875rem; padding-left: 12px; margin-left: 5px; }
  .wordmark { font-size: 1.75rem; }
  .brand-symbol { width: 25px; }
  .brand { gap: 9px; }
  nav { width: 100%; flex-wrap: wrap; justify-content: space-between; margin-top: 16px; gap: 12px; font-size: .875rem; }
  .menu-ready .menu-toggle { display: inline-flex; align-items: center; gap: 12px; border: 1px solid var(--line); padding: 9px 12px; background: white; border-radius: 6px; min-height: 44px; font-size: .875rem; margin-left: auto; }
  .menu-ready nav:not(.is-open) { display: none; }
  .menu-ready nav.is-open { display: flex; }
  .hero { grid-template-columns: 1fr; gap: 43px; padding-top: 50px; padding-bottom: 42px; }
  h1 { font-size: clamp(2.75rem, 1.5rem + 5.5vw, 4.25rem); line-height: 1.05; }
  .hero-copy > .eyebrow { margin-bottom: 21px; }
  .hero-description { font-size: 1rem; margin-top: 24px; max-width: 470px; }
  .system-visual { max-width: 530px; width: 100%; margin-inline: auto; }
  .visual-heading, .visual-footer { flex-wrap: wrap; }
  .capabilities { gap: 15px 22px; font-size: .8125rem; }
  .capabilities > span:not(:first-child)::before { margin-right: 8px; }
  .section-space { padding-block: 62px; }
  .section-heading { display: block; margin-bottom: 29px; }
  .section-heading > p { margin-top: 23px; max-width: 460px; }
  .transport-panel { grid-template-columns: 1fr; gap: 30px; padding: 29px; }
  .transport-copy h3 { font-size: 2rem; }
  .transport-copy .eyebrow { margin-bottom: 18px; }
  .journey-diagram { padding: 22px; }
  .work-grid { grid-template-columns: 1fr; gap: 18px; margin-top: 18px; }
  .work-card { padding: 29px; }
  .exploration { margin-top: 18px; padding: 22px; gap: 12px; }
  .exploration-label, .exploration-status { width: 100%; white-space: normal; }
  .approach-grid { grid-template-columns: 1fr; gap: 32px; margin-top: 36px; }
  .approach-grid article { padding-top: 20px; }
  .approach-grid h3 { margin-top: 14px; font-size: 1.4rem; }
  .closing { flex-direction: column; align-items: flex-start; padding-block: 62px; gap: 28px; }
  .footer { flex-wrap: wrap; gap: 10px 18px; }
  .footer > p { font-size: .6875rem; }
  .footer > span { width: calc(100% - 62px); margin: 4px 0 0; }
  .back-top { margin-left: auto; }
}
@media (max-width: 28em) {
  .brand-description { display: none; }
}
@media (max-width: 23.75em) {
  .container { padding-inline: 19px; }
  .wordmark { font-size: 1.55rem; }
  nav { font-size: .8125rem; }
  .profile-link { padding-inline: 12px; }
  h1 { font-size: 2.75rem; }
  .transport-panel, .work-card { padding: 23px; }
  .journey-diagram { padding: 17px; }
  .system-visual { padding-inline: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  .menu-toggle, .button, .back-top, nav, .skip-link { display: none !important; }
  .hero { padding-block: 30px; }
  .section-space, .closing { padding-block: 30px; }
  .transport-panel { print-color-adjust: exact; }
  .work-card, .transport-panel, .approach-grid article { break-inside: avoid; }
}