:root {
  color-scheme: light;
  --paper: #f0eee6;
  --paper-light: #f7f5ef;
  --ink: #10271e;
  --ink-soft: #3d5148;
  --forest: #0e2b20;
  --forest-light: #173d2d;
  --sage: #a8b7a1;
  --line: #c3c3b8;
  --line-dark: rgba(240, 238, 230, .25);
  --signal: #c57a46;
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 16px; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; }
p { text-wrap: pretty; }
button, input, select, textarea { font: inherit; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; background: white; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(var(--max), calc(100% - 48px));
  min-height: 78px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}
.wordmark { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; text-decoration: none; }
.brand-mark { position: relative; display: grid; place-items: center; flex: 0 0 auto; width: 38px; height: 38px; border: 1px solid rgba(16, 39, 30, .55); border-radius: 50%; color: var(--ink); }
.brand-mark::after { position: absolute; width: 47px; height: 23px; border: 1px solid rgba(16, 39, 30, .28); border-radius: 50%; content: ""; transform: rotate(-24deg); }
.brand-mark > span { position: relative; z-index: 1; font-size: 15px; font-weight: 700; line-height: 1; }
.wordmark-name { display: flex; flex-direction: column; gap: 4px; }
.wordmark-name strong { font-size: 16px; line-height: 1; letter-spacing: .14em; }
.wordmark-name small { color: var(--ink-soft); font: 8px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .14em; }
.site-header nav { display: flex; align-items: center; gap: clamp(16px, 2.2vw, 29px); }
.site-header nav a { display: inline-flex; align-items: center; min-height: 44px; font: 10px/1 "SFMono-Regular", Consolas, monospace; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; white-space: nowrap; }
.site-header nav a:last-child { padding-left: 24px; border-left: 1px solid var(--line); }
.site-header nav a:hover { text-decoration: underline; text-underline-offset: 5px; }

.hero, .editorial-section, .status-section, .contact-section {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(32px, 4.2vw, 62px);
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}
.hero { padding: 52px 0 46px; }
.section-marker { padding-top: 8px; border-top: 1px solid var(--ink); }
.section-marker span { display: block; font: 10px/1 "SFMono-Regular", Consolas, monospace; }
.section-marker p { margin: 12px 0 0; color: var(--ink-soft); font: 9px/1.5 "SFMono-Regular", Consolas, monospace; letter-spacing: .05em; text-transform: uppercase; }
.section-marker.light { border-top-color: var(--paper); color: var(--paper); }
.section-marker.light p { color: rgba(240, 238, 230, .58); }

.hero-content { min-width: 0; }
.kicker { margin: 0 0 16px; color: var(--ink-soft); font: 10px/1.4 "SFMono-Regular", Consolas, monospace; letter-spacing: .12em; text-transform: uppercase; }
.hero h1 { max-width: 1050px; margin: 0; font-size: clamp(3.15rem, 6vw, 5.8rem); line-height: .95; letter-spacing: -.057em; font-weight: 400; text-wrap: balance; }
.hero h1 strong { display: block; margin-top: .1em; padding-left: clamp(20px, 5vw, 70px); color: var(--ink-soft); font-weight: 400; }
.hero-summary { display: grid; grid-template-columns: minmax(0, 680px) auto; justify-content: space-between; gap: 36px; align-items: end; margin-top: 30px; padding-top: 16px; border-top: 1px solid var(--line); }
.hero-summary p { margin: 0; color: var(--ink-soft); font-size: 17px; line-height: 1.55; }
.arrow-link { display: inline-flex; align-items: center; gap: 18px; align-self: end; font: 10px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .05em; text-decoration: none; text-transform: uppercase; white-space: nowrap; }
.arrow-link span { font-size: 17px; }
.arrow-link:hover { text-decoration: underline; text-underline-offset: 6px; }
.product-facts { display: grid; grid-template-columns: repeat(4, 1fr); margin: 38px 0 0; padding: 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.product-facts div { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: baseline; padding: 14px 14px 14px 0; }
.product-facts div + div { padding-left: 16px; border-left: 1px solid var(--line); }
.product-facts dt { font-size: 24px; line-height: 1; letter-spacing: -.04em; }
.product-facts dd { max-width: 120px; margin: 0; color: var(--ink-soft); font: 9px/1.35 "SFMono-Regular", Consolas, monospace; text-transform: uppercase; }

.learning-sequence {
  display: grid;
  grid-template-columns: repeat(13, auto);
  justify-content: space-between;
  align-items: center;
  min-height: 58px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  border-top: 1px solid var(--forest-light);
  border-bottom: 1px solid var(--forest-light);
  background: var(--forest);
  color: var(--paper);
  font: 9px/1.2 "SFMono-Regular", Consolas, monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.learning-sequence i { color: var(--sage); font-style: normal; }

.editorial-section { padding: 82px 0; }
.editorial-content > h2, .tracks-head h2, .status-content > h2, .contact-intro h2 { max-width: 1030px; margin: 0; font-size: clamp(2.55rem, 4.5vw, 4.7rem); line-height: 1; letter-spacing: -.052em; font-weight: 400; text-wrap: balance; }
.lead-columns { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(38px, 7vw, 95px); margin: 42px 0 44px; padding-left: 18%; }
.lead-columns p { margin: 0; color: var(--ink-soft); font-size: 16px; line-height: 1.6; }
.method-list { margin: 0; padding: 0; border-top: 1px solid var(--ink); list-style: none; }
.method-list li { display: grid; grid-template-columns: 44px minmax(155px, .65fr) 1.35fr; gap: 20px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--line); }
.method-list li > span, .principles-table article > span { font: 9px/1 "SFMono-Regular", Consolas, monospace; }
.method-list h3 { margin: 0; font-size: 18px; font-weight: 400; }
.method-list p { margin: 0; color: var(--ink-soft); font-size: 13px; }
.outputs-block { margin-top: 48px; }
.output-list { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--line); list-style: none; }
.output-list li { min-height: 110px; padding: 16px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.output-list strong { display: block; margin-bottom: 18px; font: 10px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .05em; text-transform: uppercase; }
.output-list span { display: block; color: var(--ink-soft); font-size: 13px; line-height: 1.45; }

.tracks-section { padding: 76px max(24px, calc((100vw - var(--max)) / 2)); background: var(--forest); color: var(--paper); }
.tracks-head { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: clamp(32px, 4.2vw, 62px); margin-bottom: 46px; }
.tracks-head .kicker, .contact-section .kicker { color: var(--sage); }
.track-row { display: grid; grid-template-columns: 72px 1fr 1fr; gap: 34px; align-items: center; min-height: 168px; border-top: 1px solid var(--line-dark); }
.track-number { font: 10px/1 "SFMono-Regular", Consolas, monospace; }
.track-label { margin: 0 0 7px; color: var(--sage); font: 9px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
.track-row h3 { max-width: 620px; margin: 0; font-size: clamp(1.8rem, 3vw, 3.25rem); line-height: 1.02; letter-spacing: -.04em; font-weight: 400; }
.track-row > p { max-width: 500px; margin: 0; color: rgba(240, 238, 230, .68); font-size: 14px; }
.mission-bridge { display: grid; grid-template-columns: repeat(4, 1fr); padding: 11px 0; border-top: 1px solid var(--sage); border-bottom: 1px solid var(--sage); color: var(--sage); font: 9px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .07em; text-align: center; text-transform: uppercase; }
.scope-contract { display: grid; grid-template-columns: repeat(3, 1fr); margin: 38px 0 0; padding: 0; border-top: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark); }
.scope-contract div { padding: 15px 16px 16px 0; }
.scope-contract div + div { padding-left: 16px; border-left: 1px solid var(--line-dark); }
.scope-contract dt { color: var(--sage); font: 9px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .06em; text-transform: uppercase; }
.scope-contract dd { margin: 9px 0 0; color: rgba(240, 238, 230, .68); font-size: 12px; line-height: 1.5; }

.principles-section { max-width: none; width: 100%; padding-right: max(24px, calc((100vw - var(--max)) / 2)); padding-left: max(24px, calc((100vw - var(--max)) / 2)); background: var(--paper-light); }
.principles-table { margin-top: 44px; border-top: 1px solid var(--ink); }
.principles-table article { display: grid; grid-template-columns: 44px 1.1fr .9fr; gap: 20px; align-items: baseline; padding: 18px 0; border-bottom: 1px solid var(--line); }
.principles-table h3 { margin: 0; font-size: 18px; line-height: 1.3; font-weight: 400; }
.principles-table p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.status-section { padding: 78px 0 72px; }
.status-content > h2 { max-width: 820px; }
.status-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 42px 0 28px; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.status-grid article { padding: 20px 28px 22px 0; }
.status-grid article + article { padding-left: 28px; border-left: 1px solid var(--line); }
.status-grid h3 { margin: 0 0 15px; font: 10px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .06em; text-transform: uppercase; }
.status-grid p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.6; }
.status-grid ul { margin: 0; padding: 0; list-style: none; }
.status-grid li { position: relative; margin-top: 8px; padding-left: 17px; color: var(--ink-soft); font-size: 13px; }
.status-grid li::before { position: absolute; left: 0; content: "—"; }
.isolation-note { max-width: 820px; margin: 0; color: var(--ink-soft); font-size: 12px; }

.contact-section { max-width: none; width: 100%; padding: 76px max(24px, calc((100vw - var(--max)) / 2)); background: var(--forest); color: var(--paper); }
.contact-layout { display: grid; grid-template-columns: minmax(270px, .78fr) minmax(0, 1.22fr); gap: clamp(50px, 7vw, 100px); }
.contact-intro h2 { max-width: 560px; }
.contact-intro > p:not(.kicker) { max-width: 470px; margin: 28px 0 22px; color: rgba(240, 238, 230, .68); font-size: 14px; }
.contact-address { display: inline-block; font: 11px/1.3 "SFMono-Regular", Consolas, monospace; text-underline-offset: 5px; }
.contact-form { position: relative; min-width: 0; padding-top: 3px; }
.form-row { display: grid; gap: 22px; }
.form-row.two-columns { grid-template-columns: 1fr 1fr; }
.form-row + .form-row, .form-row + .field, .field + .form-verification { margin-top: 18px; }
.field { min-width: 0; }
.field label { display: block; margin-bottom: 7px; color: var(--sage); font: 9px/1.3 "SFMono-Regular", Consolas, monospace; letter-spacing: .06em; text-transform: uppercase; }
.field input, .field select, .field textarea {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 11px 12px;
  border: 1px solid rgba(240, 238, 230, .4);
  border-radius: 0;
  outline: none;
  background: rgba(240, 238, 230, .06);
  color: var(--paper);
  font-size: 16px;
  line-height: 1.35;
  -webkit-appearance: none;
  appearance: none;
}
.field select { padding-right: 38px; background-image: linear-gradient(45deg, transparent 50%, var(--sage) 50%), linear-gradient(135deg, var(--sage) 50%, transparent 50%); background-position: calc(100% - 17px) 21px, calc(100% - 12px) 21px; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; }
.field select option { background: var(--forest); color: var(--paper); }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--paper); box-shadow: 0 0 0 1px var(--paper); }
.field input:user-invalid, .field select:user-invalid, .field textarea:user-invalid { border-color: #e6a978; }
.field-help { margin: 7px 0 0; color: rgba(240, 238, 230, .52); font-size: 11px; }
.form-verification { min-height: 65px; overflow: hidden; }
.local-verification { margin: 17px 0 0; padding-top: 10px; border-top: 1px solid var(--line-dark); color: rgba(240, 238, 230, .52); font: 9px/1.4 "SFMono-Regular", Consolas, monospace; letter-spacing: .04em; text-transform: uppercase; }
.form-actions { display: grid; grid-template-columns: auto minmax(160px, 1fr); gap: 20px; align-items: center; margin-top: 16px; }
.form-actions button { min-height: 50px; padding: 12px 18px; border: 1px solid var(--paper); border-radius: 0; background: var(--paper); color: var(--forest); font: 10px/1.2 "SFMono-Regular", Consolas, monospace; letter-spacing: .05em; text-transform: uppercase; cursor: pointer; }
.form-actions button span { margin-left: 18px; font-size: 16px; }
.form-actions button:hover { background: transparent; color: var(--paper); }
.form-actions button:disabled { cursor: wait; opacity: .55; }
.form-actions p { max-width: 320px; margin: 0; color: rgba(240, 238, 230, .48); font-size: 10px; line-height: 1.4; }
.form-status { min-height: 22px; margin: 12px 0 0; font-size: 12px; }
.form-status[data-state="success"] { color: #bdd6b5; }
.form-status[data-state="error"] { color: #f0b58a; }
.form-trap { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; overflow: hidden !important; }

footer { display: grid; grid-template-columns: 1.3fr 1fr .5fr auto; gap: 30px; align-items: center; width: min(var(--max), calc(100% - 48px)); min-height: 96px; margin: 0 auto; border-top: 1px solid var(--ink); color: var(--ink-soft); font: 9px/1.4 "SFMono-Regular", Consolas, monospace; }
footer p { margin: 0; }
footer > a:last-child { min-height: 44px; display: inline-flex; align-items: center; justify-content: flex-end; text-transform: uppercase; }

.error-page { min-height: 100vh; background: var(--forest); color: var(--paper); }
.error-page main { display: flex; flex-direction: column; justify-content: space-between; width: min(900px, calc(100% - 40px)); min-height: 100vh; margin: 0 auto; padding: 34px 0 70px; }
.error-page .brand-mark { border-color: rgba(240, 238, 230, .55); color: var(--paper); }
.error-page .brand-mark::after { border-color: rgba(240, 238, 230, .28); }
.error-page .wordmark-name small { color: var(--sage); }
.error-page h1 { max-width: 760px; margin: 0; font-size: clamp(3rem, 7vw, 6.5rem); line-height: .95; letter-spacing: -.055em; font-weight: 400; }
.error-page main > div > p:not(.kicker) { margin: 24px 0 32px; color: rgba(240, 238, 230, .62); }
.error-page .arrow-link { color: var(--paper); }

a:focus-visible, button:focus-visible { outline: 2px solid var(--signal); outline-offset: 5px; }

@media (max-width: 980px) {
  .site-header nav { gap: 14px; }
  .site-header nav a:nth-child(3) { display: none; }
  .hero, .editorial-section, .status-section, .contact-section, .tracks-head { grid-template-columns: 86px minmax(0, 1fr); gap: 30px; }
  .lead-columns { padding-left: 0; }
  .track-row { grid-template-columns: 44px 1fr; }
  .track-row > p { grid-column: 2; padding-bottom: 22px; }
  .contact-layout { grid-template-columns: .7fr 1.3fr; gap: 40px; }
}

@media (max-width: 740px) {
  html { scroll-padding-top: 8px; }

  .site-header { display: grid; width: 100%; min-height: 0; padding-top: 17px; border-bottom: 0; }
  .site-header .wordmark { margin: 0 16px 13px; }
  .site-header nav { display: flex; gap: 0; width: 100%; overflow-x: auto; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); -webkit-overflow-scrolling: touch; scrollbar-width: none; }
  .site-header nav::-webkit-scrollbar { display: none; }
  .site-header nav a, .site-header nav a:nth-child(3) { display: inline-flex; min-height: 46px; padding: 0 14px; border-right: 1px solid var(--line); }
  .site-header nav a:last-child { padding-left: 14px; border-left: 0; }
  .hero, .editorial-section, .status-section { display: block; width: calc(100% - 32px); }
  .hero { padding: 36px 0 38px; }
  .section-marker { display: grid; grid-template-columns: 28px 1fr; gap: 9px; margin-bottom: 25px; }
  .section-marker p { margin: 0; }
  .hero h1 { font-size: clamp(2.7rem, 12.8vw, 4.4rem); }
  .hero h1 strong { padding-left: 0; }
  .hero-summary { grid-template-columns: 1fr; gap: 24px; margin-top: 26px; }
  .hero-summary p { font-size: 16px; }
  .product-facts { grid-template-columns: 1fr 1fr; margin-top: 30px; }
  .product-facts div + div { padding-left: 0; border-left: 0; }
  .product-facts div:nth-child(even) { padding-left: 12px; border-left: 1px solid var(--line); }
  .product-facts div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .product-facts dd { max-width: 100px; }
  .learning-sequence { display: flex; gap: 12px; min-height: 52px; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; }
  .editorial-section { padding: 58px 0; }
  .editorial-content > h2, .tracks-head h2, .status-content > h2, .contact-intro h2 { font-size: clamp(2.45rem, 11.4vw, 3.75rem); }
  .lead-columns { grid-template-columns: 1fr; gap: 20px; margin: 32px 0 34px; }
  .method-list li, .principles-table article { grid-template-columns: 30px 1fr; gap: 10px; }
  .method-list p, .principles-table p { grid-column: 2; }
  .outputs-block { margin-top: 38px; }
  .output-list { grid-template-columns: 1fr; }
  .output-list li { min-height: 0; }
  .tracks-section { padding: 56px 16px; }
  .tracks-head { display: block; margin-bottom: 32px; }
  .tracks-head .section-marker { margin-bottom: 25px; }
  .track-row { grid-template-columns: 30px 1fr; gap: 10px; min-height: 0; padding: 25px 0; }
  .track-row > p { grid-column: 2; padding-bottom: 0; }
  .mission-bridge { grid-template-columns: 1fr 1fr; gap: 0; padding: 0; }
  .mission-bridge span { padding: 9px 4px; }
  .mission-bridge span:nth-child(odd) { border-right: 1px solid var(--line-dark); }
  .mission-bridge span:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
  .scope-contract { grid-template-columns: 1fr; margin-top: 28px; }
  .scope-contract div, .scope-contract div + div { padding: 13px 0; border-left: 0; }
  .scope-contract div + div { border-top: 1px solid var(--line-dark); }
  .principles-section { width: 100%; padding-right: 16px; padding-left: 16px; }
  .principles-table { margin-top: 34px; }
  .status-section { padding: 58px 0 54px; }
  .status-grid { grid-template-columns: 1fr; margin-top: 32px; }
  .status-grid article, .status-grid article + article { padding: 18px 0 20px; border-left: 0; }
  .status-grid article + article { border-top: 1px solid var(--line); }
  .contact-section { display: block; padding: 56px 16px; }
  .contact-layout { display: block; }
  .contact-intro { margin-bottom: 40px; }
  .contact-intro > p:not(.kicker) { margin-top: 21px; }
  .form-row.two-columns { grid-template-columns: 1fr; gap: 16px; }
  .form-actions { grid-template-columns: 1fr; gap: 12px; }
  .form-actions button { width: 100%; }
  .form-verification { width: 100%; }
  footer { grid-template-columns: 1fr auto; width: calc(100% - 32px); min-height: auto; padding: 25px 0; }
  footer p { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}