:root {
  --ink: #111716;
  --ink-soft: #1b2422;
  --paper: #f2eee4;
  --paper-bright: #fbf9f2;
  --paper-deep: #e5e3da;
  --muted: #5d6864;
  --line: #b8c0bb;
  --sea: #4f726c;
  --sea-pale: #c8d8d4;
  --rust: #b65e43;
  --focus: #3974b8;
  --shell: min(100% - 2rem, 82rem);
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Baskerville, Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 1rem; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--focus); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; top: .75rem; left: .75rem; padding: .65rem .9rem; color: #fff; background: var(--ink); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header, .section-shell, .hero, .site-footer { width: var(--shell); margin-inline: auto; }

.site-header { display: flex; min-height: 5.4rem; align-items: center; justify-content: space-between; gap: 2rem; border-bottom: 1px solid var(--ink); }
.brand { display: inline-flex; align-items: center; gap: .8rem; text-decoration: none; }
.brand-mark { display: grid; width: 2.6rem; height: 2.6rem; place-items: center; color: var(--paper); background: var(--ink); border-radius: 9px; font: 700 .7rem var(--mono); letter-spacing: .06em; }
.brand > span:last-child { display: grid; line-height: 1.15; }
.brand strong { font-size: .88rem; }
.brand small { margin-top: .25rem; color: var(--muted); font: .57rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.site-header nav { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2.7rem); }
.site-header nav a { font-size: .72rem; font-weight: 750; letter-spacing: .1em; text-decoration: none; text-transform: uppercase; }
.site-header nav a:hover { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: .3rem; }
.site-header .nav-home { display: inline-flex; min-height: 44px; align-items: center; padding: .55rem .7rem; border: 1px solid var(--ink); border-radius: 6px; }

.hero { display: grid; min-height: calc(100vh - 5.4rem); grid-template-columns: minmax(0, .92fr) minmax(24rem, 1.08fr); align-items: center; gap: clamp(2rem, 6vw, 6rem); padding-block: clamp(4rem, 9vw, 8rem); }
.eyebrow, .section-index { margin: 0; color: var(--muted); font: 700 .66rem var(--mono); letter-spacing: .14em; text-transform: uppercase; }
h1, h2, h3, p { text-wrap: pretty; }
h1, h2, h3 { margin: 0; font-weight: 500; letter-spacing: -.055em; line-height: .96; }
h1 { max-width: 10ch; margin-top: 1.4rem; font-size: clamp(4rem, 8.7vw, 8rem); }
h1 em { color: var(--rust); font-family: var(--serif); font-weight: 400; }
h2 { font-size: clamp(2.6rem, 5.4vw, 5rem); }
h3 { font-size: 1.35rem; }
.hero-intro { max-width: 39rem; margin: 2rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.8vw, 1.3rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 1.6rem; margin-top: 2rem; }
.primary-action, .text-action { display: inline-flex; min-height: 48px; align-items: center; gap: .8rem; padding: .75rem 1rem; border-radius: 7px; font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.primary-action { color: #fff; background: var(--ink); border: 1px solid var(--ink); }
.primary-action:hover { color: var(--ink); background: var(--sea-pale); }
.text-action { padding-inline: 0; text-decoration: underline; text-underline-offset: .3rem; }
.hero-ledger { display: grid; margin: 3rem 0 0; border-top: 1px solid var(--line); grid-template-columns: repeat(3, 1fr); }
.hero-ledger div { padding: .9rem .7rem .9rem 0; }
.hero-ledger div + div { padding-left: .7rem; border-left: 1px solid var(--line); }
.hero-ledger dt { color: var(--sea); font: 700 .6rem var(--mono); }
.hero-ledger dd { margin: .3rem 0 0; font-size: .72rem; font-weight: 700; }
.hero-visual { position: relative; margin: 0; overflow: hidden; background: var(--ink); border-radius: 18px; box-shadow: 18px 18px 0 var(--sea-pale); }
.hero-visual img { width: 100%; min-height: 33rem; object-fit: cover; object-position: 63% center; }
.hero-visual figcaption { position: absolute; right: 1rem; bottom: 1rem; left: 1rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .75rem .9rem; color: #fff; background: rgb(17 23 22 / .84); border: 1px solid rgb(255 255 255 / .25); border-radius: 7px; backdrop-filter: blur(12px); }
.hero-visual figcaption span { color: var(--sea-pale); font: .6rem var(--mono); text-transform: uppercase; }
.hero-visual figcaption strong { font-size: .72rem; }

.thesis { display: grid; grid-template-columns: minmax(10rem, .35fr) minmax(0, 1fr); gap: 2rem; padding-block: clamp(5rem, 10vw, 9rem); border-top: 1px solid var(--ink); }
.thesis > div { display: grid; max-width: 66rem; gap: 2rem; }
.thesis h2 { max-width: 13ch; }
.thesis p:last-child { max-width: 49rem; margin: 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.35rem); line-height: 1.7; }

.system { padding-block: clamp(5rem, 9vw, 8rem); border-top: 1px solid var(--ink); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr); align-items: end; gap: 3rem; }
.section-heading h2 { margin-top: .8rem; }
.section-heading > p { max-width: 35rem; margin: 0; color: var(--muted); font-size: 1rem; line-height: 1.7; }
.system-map { display: grid; align-items: stretch; margin-top: 4rem; grid-template-columns: minmax(0, .85fr) 70px minmax(0, .9fr) 70px minmax(0, 1.25fr); }
.map-node { display: grid; min-height: 12rem; align-content: space-between; padding: 1.2rem; background: var(--paper-bright); border: 1px solid var(--ink); border-radius: 12px; }
.map-node span, .map-node small { color: var(--muted); font: .6rem var(--mono); text-transform: uppercase; }
.map-node strong { font-size: clamp(1.35rem, 2.4vw, 2rem); line-height: 1.05; }
.map-edge { color: #fff; background: var(--ink); }
.map-edge span, .map-edge small { color: var(--sea-pale); }
.map-connector { position: relative; align-self: center; height: 1px; background: var(--ink); }
.map-connector::after { position: absolute; top: -4px; right: 0; width: 8px; height: 8px; content: ""; background: var(--rust); border-radius: 50%; }
.map-store { display: grid; gap: .55rem; }
.map-store .map-node { min-height: 0; grid-template-columns: .55fr .8fr 1fr; align-items: center; gap: 1rem; }
.map-store .map-node strong { font-size: 1rem; }
.capability-grid { display: grid; margin-top: 4rem; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); grid-template-columns: repeat(3, 1fr); }
.capability { min-height: 20rem; padding: 1.3rem; border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.capability > span { display: grid; width: 2.2rem; height: 2.2rem; place-items: center; color: #fff; background: var(--sea); border-radius: 50%; font: .63rem var(--mono); }
.capability h3 { max-width: 13ch; margin-top: 4.8rem; }
.capability p { margin: 1rem 0 0; color: var(--muted); font-size: .9rem; line-height: 1.65; }

.workflow { padding-block: clamp(5rem, 9vw, 8rem); color: var(--paper); background: var(--ink); }
.section-heading-dark .eyebrow { color: var(--sea-pale); }
.section-heading-dark > p { color: #aeb9b5; }
.workflow-steps { margin: 4rem 0 0; padding: 0; border-top: 1px solid #48514e; list-style: none; }
.workflow-steps li { display: grid; min-height: 11rem; align-items: center; grid-template-columns: 70px minmax(0, 1fr) auto; gap: 2rem; border-bottom: 1px solid #48514e; }
.workflow-steps li > span { color: var(--sea-pale); font: .72rem var(--mono); }
.workflow-steps li h3 { font-size: clamp(1.4rem, 2.8vw, 2.2rem); }
.workflow-steps li p { max-width: 48rem; margin: .7rem 0 0; color: #aeb9b5; }
.workflow-steps li > strong { padding: .5rem .65rem; color: var(--sea-pale); border: 1px solid #52605c; border-radius: 999px; font: .6rem var(--mono); text-transform: uppercase; }

.interface { padding-block: clamp(5rem, 9vw, 8rem); }
.interface-frame { display: grid; min-height: 38rem; margin-top: 4rem; overflow: hidden; background: #edf0ed; border: 1px solid var(--ink); border-radius: 18px; box-shadow: 16px 16px 0 var(--sea-pale); grid-template-columns: 84px 1fr; }
.mock-sidebar { display: grid; align-content: start; justify-items: center; gap: 1.2rem; padding: 1rem; color: #fff; background: var(--ink); }
.mock-sidebar > span { display: grid; width: 42px; height: 42px; place-items: center; background: var(--sea-pale); color: var(--ink); border-radius: 8px; font: .65rem var(--mono); }
.mock-sidebar i { display: block; width: 32px; height: 5px; margin-top: 1rem; background: #56615d; border-radius: 4px; }
.mock-sidebar i.active { background: var(--sea-pale); }
.mock-workspace { padding: 2rem; }
.mock-workspace > header { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--ink); }
.mock-workspace > header div { display: grid; gap: .4rem; }
.mock-workspace > header small { font: .6rem var(--mono); letter-spacing: .1em; }
.mock-workspace > header strong { font-size: clamp(1.8rem, 4vw, 3.5rem); letter-spacing: -.055em; }
.mock-workspace button { min-height: 40px; padding: .55rem .7rem; color: var(--ink); background: var(--sea-pale); border: 1px solid var(--ink); border-radius: 6px; font: .6rem var(--mono); }
.mock-project { margin-top: 1.5rem; overflow: hidden; background: var(--paper-bright); border: 1px solid var(--line); border-radius: 12px; }
.mock-title { display: grid; align-items: center; gap: .75rem; padding: 1.3rem; grid-template-columns: auto 1fr auto; }
.mock-title span { padding: .35rem .5rem; color: #fff; background: var(--sea); border-radius: 999px; font: .58rem var(--mono); }
.mock-title strong { font-size: 1.4rem; }
.mock-title em { color: var(--muted); font: normal .65rem var(--mono); }
.mock-metrics { display: grid; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); grid-template-columns: repeat(4, 1fr); }
.mock-metrics span { display: grid; gap: .35rem; padding: 1rem; font-size: 1.4rem; font-weight: 750; }
.mock-metrics span + span { border-left: 1px solid var(--line); }
.mock-metrics small { color: var(--muted); font: .56rem var(--mono); text-transform: uppercase; }
.mock-task { display: grid; min-height: 76px; align-items: center; gap: .7rem; padding: .9rem 1rem; grid-template-columns: 90px 1fr auto auto; }
.mock-task + .mock-task { border-top: 1px solid var(--line); }
.mock-task > span { color: var(--sea); font: 700 .57rem var(--mono); }
.mock-task > strong { font-size: .9rem; }
.fiction-note { margin: 2rem 0 0; color: var(--muted); font-size: .75rem; text-align: center; }

.privacy { display: grid; grid-template-columns: minmax(0, 1fr) minmax(22rem, .85fr); gap: clamp(3rem, 8vw, 8rem); padding-block: clamp(5rem, 9vw, 8rem); border-top: 1px solid var(--ink); }
.privacy-statement h2 { margin-top: 1rem; }
.privacy-statement > p:last-child { max-width: 42rem; margin: 1.5rem 0 0; color: var(--muted); font-size: 1.05rem; }
.privacy-ledger { margin: 0; border-top: 1px solid var(--ink); }
.privacy-ledger div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.privacy-ledger dt { color: var(--muted); font: .62rem var(--mono); text-transform: uppercase; }
.privacy-ledger dd { margin: .4rem 0 0; font-weight: 700; }

.closing { padding-block: clamp(5rem, 10vw, 9rem); color: #fff; background: var(--rust); box-shadow: 0 0 0 100vmax var(--rust); clip-path: inset(0 -100vmax); }
.closing .eyebrow { color: #f4d6cc; }
.closing h2 { max-width: 11ch; margin-top: 1rem; }
.closing > div { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-top: 3rem; }
.closing > div p { max-width: 30rem; margin: 0; color: #f4d6cc; }
.closing .primary-action:hover { background: #fff; }

.site-footer { display: grid; min-height: 15rem; align-items: center; grid-template-columns: 1fr 1fr 1fr; gap: 2rem; }
.site-footer p { margin: 0; color: var(--muted); font-size: .8rem; }
.site-footer .colophon { text-align: right; }
.site-footer a { text-underline-offset: .2rem; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .hero { min-height: auto; grid-template-columns: 1fr; }
  .hero-copy { padding-top: 1rem; }
  .hero-visual img { min-height: 28rem; }
  .section-heading { grid-template-columns: 1fr; gap: 1.4rem; }
  .system-map { grid-template-columns: 1fr; gap: .75rem; }
  .map-connector { width: 1px; height: 36px; justify-self: center; }
  .map-connector::after { top: auto; right: -3px; bottom: 0; }
  .capability-grid { grid-template-columns: repeat(2, 1fr); }
  .privacy { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  :root { --shell: min(100% - 1.25rem, 82rem); }
  .site-header { min-height: 4.7rem; }
  .site-header .brand { min-height: 44px; }
  .site-header nav a:not(.nav-home) { display: none; }
  .site-header .nav-home { font-size: .62rem; }
  .hero { padding-block: 3.5rem 5rem; }
  h1 { font-size: clamp(3.4rem, 17vw, 5.2rem); }
  .hero-ledger { grid-template-columns: 1fr; }
  .hero-ledger div, .hero-ledger div + div { padding: .75rem 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .hero-visual { border-radius: 12px; box-shadow: 8px 8px 0 var(--sea-pale); }
  .hero-visual img { min-height: 22rem; object-position: 68% center; }
  .hero-visual figcaption { align-items: flex-start; flex-direction: column; }
  .thesis { grid-template-columns: 1fr; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability { min-height: 15rem; }
  .capability h3 { margin-top: 3rem; }
  .workflow-steps li { align-items: start; grid-template-columns: 40px 1fr; gap: 1rem; padding-block: 1.4rem; }
  .workflow-steps li > strong { grid-column: 2; justify-self: start; }
  .interface-frame { min-height: 31rem; border-radius: 12px; box-shadow: 8px 8px 0 var(--sea-pale); grid-template-columns: 44px 1fr; }
  .mock-sidebar { padding: .5rem; }
  .mock-sidebar > span { width: 30px; height: 30px; }
  .mock-sidebar i { width: 22px; }
  .mock-workspace { padding: .8rem; }
  .mock-workspace > header { align-items: flex-start; flex-direction: column; gap: .8rem; }
  .mock-metrics { grid-template-columns: 1fr 1fr; }
  .mock-metrics span:nth-child(3), .mock-metrics span:nth-child(4) { border-top: 1px solid var(--line); }
  .mock-metrics span:nth-child(3) { border-left: 0; }
  .mock-title { align-items: start; grid-template-columns: 1fr; }
  .mock-title span { justify-self: start; }
  .mock-task { align-items: start; grid-template-columns: 1fr 1fr; }
  .mock-task strong { grid-column: 1 / -1; }
  .mock-task > span { grid-column: 1 / -1; }
  .closing > div, .site-footer { align-items: flex-start; flex-direction: column; }
  .closing > div { display: flex; }
  .site-footer { display: flex; min-height: 20rem; justify-content: center; }
  .site-footer .colophon { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}