@font-face { font-family: "IBM Plex Sans"; src: url("/fonts/ibm-plex-sans-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/fonts/ibm-plex-sans-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/fonts/ibm-plex-sans-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "IBM Plex Serif"; src: url("/fonts/ibm-plex-serif-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Serif"; src: url("/fonts/ibm-plex-serif-500.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  color-scheme: light;
  --paper: #f3f1e9;
  --ink: #242b2b;
  --green: #a84629;
  --muted: #5b625f;
  --rule: #d4d6cc;
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 48px; }
body { margin: 0; }
a { color: inherit; text-underline-offset: 4px; }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 6px; }
::selection { background: #f1c6ad; color: #252a28; }
.wrap { width: min(1120px, calc(100% - 112px)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 5; top: 16px; left: 16px; padding: 14px 20px; background: var(--ink); color: white; transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.opening { position: relative; isolation: isolate; }
.contours { position: absolute; z-index: -1; top: -150px; right: 0; width: min(100%, 1100px); height: 1000px; color: #6d8063; opacity: .09; pointer-events: none; }
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding-block: 42px 0; }
.wordmark { display: inline-flex; align-items: center; gap: 22px; color: var(--ink); text-decoration: none; }
.mark { width: 100px; height: 92px; color: var(--green); flex: none; }
.wordmark span { font-size: 64px; line-height: 1; letter-spacing: -.065em; font-weight: 450; }
.site-nav { position: relative; display: flex; align-items: center; flex-wrap: wrap; gap: 12px 28px; }
.site-nav [aria-current="page"] { text-decoration: underline; }
.product-page { min-height: 100vh; display: flex; flex-direction: column; }
.product-content { flex: 1; }
.product-page .site-footer { border-top: 1px solid var(--rule); }
.thesis-link { display: inline-flex; gap: 14px; align-items: center; color: var(--green); font-size: 13px; text-decoration: none; }
.thesis-link span { font-size: 23px; }
.thesis-link:hover { text-decoration: underline; }
.product-trigger { min-height: 44px; cursor: pointer; list-style: none; }
.product-trigger::-webkit-details-marker { display: none; }
.product-trigger:focus-visible { outline: 2px solid var(--green); outline-offset: 6px; }
.product-trigger svg { width: 12px; height: 12px; }
.product-menu[open] .product-trigger svg { transform: rotate(180deg); }
.product-dropdown { position: absolute; z-index: 10; top: calc(100% + 12px); right: 0; width: min(380px, calc(100vw - 48px)); padding: 20px; border: 1px solid var(--rule); border-radius: 6px; background: #fcfbf6; box-shadow: 0 14px 36px #242b2b14; }
.product-dropdown > .eyebrow { margin: 0 10px 12px; }
.product-list { list-style: none; padding: 0; margin: 0; }
.product-entry { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; padding: 14px 10px; border-radius: 3px; text-decoration: none; }
.product-entry:hover, .product-entry:focus-visible { background: #e9e7de; }
.product-entry-name { font-size: 17px; line-height: 1.4; font-weight: 500; }
.product-entry-arrow { align-self: center; color: var(--green); }
.product-entry-description { grid-column: 1 / -1; font-size: 14px; line-height: 1.65; color: var(--muted); }
.product-entry[aria-current="page"] { text-decoration: none; }
.product-entry[aria-current="page"] .product-entry-name { text-decoration: underline; }
.mission { padding-block: 76px 0; }
.mission-grid { display: grid; grid-template-columns: 1.12fr 1fr; gap: 88px; align-items: start; }
.eyebrow, .chapter-label { margin: 0; font-size: 11px; line-height: 1.6; letter-spacing: .13em; text-transform: uppercase; font-weight: 600; color: var(--green); }
h1, h2 { font-family: "IBM Plex Serif", Georgia, serif; font-weight: 400; text-wrap: balance; }
h1 { font-size: clamp(44px, 5.3vw, 70px); line-height: 1.08; letter-spacing: -.045em; margin: 25px 0 0; }
.mission-copy { padding-top: 37px; font-size: 16px; line-height: 1.85; color: #5b625f; }
.mission-copy p { margin: 0 0 19px; }
.mission-copy p:first-child { color: var(--ink); font-size: 19px; line-height: 1.65; }
.mission-copy p:last-child { margin-bottom: 0; }
.contact-row { display: flex; flex-wrap: wrap; align-items: center; gap: 26px 36px; border-top: 1px solid var(--rule); margin-top: 56px; padding-block: 25px 42px; }
.contact-button { display: inline-flex; align-items: center; justify-content: center; gap: 24px; min-height: 48px; padding: 13px 22px; border: 1px solid var(--green); border-radius: 3px; background: var(--green); color: #fff; font-size: 14px; text-decoration: none; transition: background .15s ease; }
.contact-button:hover { background: #83371f; }
.contact-button svg { width: 18px; height: 18px; }
.contact-person { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px; margin: 0; font-size: 13px; line-height: 1.7; color: var(--muted); }
.contact-person span { color: var(--ink); }
.contact-person a { color: var(--green); }
.thesis-area { background: #fcfbf6; border-top: 1px solid var(--rule); }
.thesis-intro { padding-block: 64px 58px; }
.thesis-intro h1 { max-width: 820px; }
.thesis-intro > p:last-child { max-width: 650px; margin: 25px 0 0; font-size: 19px; line-height: 1.75; color: var(--muted); }
.thesis-layout { display: grid; grid-template-columns: 228px minmax(0, 1fr); gap: 90px; padding-top: 84px; padding-bottom: 92px; }
.contents { position: sticky; top: 52px; padding-top: 4px; }
.contents ol { padding: 0; margin: 24px 0 0; list-style: none; border-top: 1px solid var(--rule); }
.contents li { border-bottom: 1px solid var(--rule); }
.contents li a { display: grid; grid-template-columns: 22px 1fr; gap: 12px; padding: 17px 0; text-decoration: none; font-size: 13px; line-height: 1.6; color: #5b625f; }
.contents li a span { font-size: 10px; padding-top: 2px; color: #6b736d; font-variant-numeric: tabular-nums; }
.contents li a:hover { color: #a84629; text-decoration: underline; }
.back-to-top { display: inline-flex; gap: 18px; margin-top: 28px; font-size: 12px; color: var(--muted); text-decoration: none; }
.back-to-top:hover { text-decoration: underline; }
.chapter { scroll-margin-top: 46px; }
.chapter + .chapter { border-top: 1px solid var(--rule); margin-top: 72px; padding-top: 58px; }
.chapter-label { display: flex; align-items: center; gap: 16px; }
.chapter-label span { font-size: 12px; letter-spacing: .03em; font-variant-numeric: tabular-nums; }
h2 { margin: 24px 0 32px; max-width: 720px; font-size: clamp(32px, 3.2vw, 43px); line-height: 1.19; letter-spacing: -.032em; }
.prose { max-width: 710px; font-size: 17px; line-height: 1.85; color: #505956; }
.prose p { margin: 0 0 24px; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: #242b2b; font-weight: 600; }
.prose em { color: #242b2b; }
.prose .key-point { border-left: 2px solid #a84629; margin-block: 36px; padding: 3px 0 3px 25px; font-family: "IBM Plex Serif", Georgia, serif; font-size: 24px; line-height: 1.5; letter-spacing: -.018em; }
.key-point strong { font-weight: 400; }
#core-thesis .key-point { padding: 30px 32px; border: 1px solid #d4d6cc; background: #e9e7de; }
#possibilities .key-point:last-child { margin: 38px 0 0; padding: 32px; border: 0; background: #293330; }
#possibilities .key-point:last-child strong { color: #f5f3e9; }
.site-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px 28px; padding-block: 33px 38px; color: var(--muted); font-size: 12px; line-height: 1.7; }
.footer-brand { color: var(--ink); font-size: 24px; letter-spacing: -.05em; text-decoration: none; }
.site-footer p { margin: 0; }
.site-footer > a:last-child { display: inline-flex; gap: 10px; text-decoration: none; color: var(--green); }
.site-footer > a:last-child:hover { text-decoration: underline; }

.demo-page { min-height: 100vh; display: flex; flex-direction: column; }
.demo-layout { display: grid; grid-template-columns: 1fr 1.05fr; gap: 96px; padding-block: 74px 76px; flex: 1; }
.demo-intro h1 { font-size: clamp(44px, 4.7vw, 62px); }
.demo-description { max-width: 380px; margin: 25px 0 0; font-size: 18px; line-height: 1.75; color: var(--muted); }
.demo-next { border-top: 1px solid var(--rule); margin-top: 48px; padding-top: 25px; max-width: 350px; }
.demo-next > p:last-child { font-size: 15px; line-height: 1.8; color: var(--muted); margin-block: 12px 0; }
.demo-contact { font-size: 14px; line-height: 1.85; margin: 29px 0 0; }
.demo-contact a { color: var(--green); }
.demo-form-panel { border: 1px solid var(--rule); background: #fcfbf6; padding: 34px 36px; border-radius: 4px; }
.demo-form { display: grid; gap: 24px; }
.form-field { display: grid; gap: 9px; }
.form-field label { font-size: 14px; font-weight: 500; line-height: 1.5; }
.form-field label span { font-weight: 400; font-size: 12px; color: var(--muted); }
.form-field input, .form-field textarea { width: 100%; min-width: 0; border: 1px solid #adb3a8; border-radius: 3px; background: white; color: var(--ink); font: inherit; font-size: 16px; line-height: 1.5; padding: 11px 13px; }
.form-field textarea { resize: vertical; min-height: 112px; }
.form-field input:focus-visible, .form-field textarea:focus-visible, button:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
.field-hint { font-size: 12px; color: var(--muted); line-height: 1.65; margin: -2px 0 1px; }
.demo-form button { font-family: inherit; cursor: pointer; width: 100%; }
.form-privacy { margin: -8px 0 0; font-size: 11px; line-height: 1.75; color: var(--muted); }
.demo-page .site-footer { border-top: 1px solid var(--rule); }

@media (max-width: 1000px) {
  .wrap { width: calc(100% - 72px); }
  .mission-grid { gap: 48px; }
  .thesis-layout { grid-template-columns: 185px minmax(0, 1fr); gap: 48px; }
  .wordmark span { font-size: 57px; }
  .mark { width: 86px; height: 80px; }
  .demo-layout { gap: 46px; }
  .demo-form-panel { padding: 28px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 24px; }
  .wrap { width: calc(100% - 48px); }
  .site-header { padding-top: 27px; gap: 20px; flex-wrap: wrap; }
  .site-nav { flex-basis: 100%; gap: 12px 24px; }
  .product-dropdown { left: 0; right: auto; width: 100%; }
  .wordmark { gap: 12px; }
  .wordmark span { font-size: 43px; }
  .mark { width: 67px; height: 62px; }
  .thesis-link { font-size: 11px; gap: 8px; }
  .thesis-link span { font-size: 18px; }
  .mission { padding-top: 54px; }
  .mission-grid { grid-template-columns: 1fr; gap: 26px; }
  h1 { max-width: 590px; font-size: clamp(43px, 8.5vw, 62px); line-height: 1.1; margin-top: 18px; }
  .mission-copy { max-width: 590px; padding-top: 0; font-size: 16px; line-height: 1.8; }
  .mission-copy p:first-child { font-size: 18px; }
  .contact-row { margin-top: 30px; padding-block: 23px 34px; gap: 20px; }
  .contact-person { flex-direction: column; align-items: flex-start; gap: 1px; }
  .thesis-layout { display: block; padding-block: 36px 58px; }
  .contents { position: static; padding-top: 0; margin-bottom: 46px; }
  .contents ol { display: grid; grid-template-columns: 1fr 1fr; column-gap: 24px; margin-top: 17px; }
  .contents li a { padding-block: 13px; grid-template-columns: 18px 1fr; gap: 8px; font-size: 12px; }
  .back-to-top { display: none; }
  .chapter { scroll-margin-top: 22px; }
  .chapter + .chapter { margin-top: 48px; padding-top: 38px; }
  h2 { font-size: clamp(30px, 5.7vw, 39px); line-height: 1.2; margin-block: 17px 25px; }
  .prose { font-size: 16px; line-height: 1.85; }
  .prose p { margin-bottom: 22px; }
  .prose .key-point { font-size: 22px; padding-left: 19px; margin-block: 29px; }
  #core-thesis .key-point, #possibilities .key-point:last-child { padding: 25px 23px; }
  .site-footer { justify-content: flex-start; gap: 17px 28px; padding-block: 28px; }
  .site-footer p { flex-basis: 100%; order: 3; font-size: 11px; }
  .site-footer > a:last-child { margin-left: auto; }
  .demo-layout { grid-template-columns: 1fr; gap: 32px; padding-block: 48px; }
  .demo-description { max-width: 520px; margin-top: 20px; font-size: 17px; }
  .demo-next { max-width: none; margin-top: 26px; padding-top: 22px; }
  .demo-contact { margin-top: 19px; }
  .demo-form-panel { padding: 26px 22px; }
}

@media (max-width: 380px) {
  .wrap { width: calc(100% - 36px); }
  .wordmark span { font-size: 36px; }
  .mark { width: 56px; height: 52px; }
  .thesis-link { line-height: 1.5; }
  .mission { padding-top: 42px; }
  h1 { font-size: 40px; }
  .contact-person { font-size: 12px; }
  .contact-button { padding-inline: 17px; gap: 16px; }
  .contents ol { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .contact-button { transition: none; }
}

@media print {
  :root { background: white; color: black; }
  .wrap { width: 100%; }
  .contours, .skip-link, .site-nav, .thesis-link, .thesis-sidebar, .site-footer, .contact-button svg { display: none; }
  .site-header { padding: 0; }
  .mission { padding-top: 30px; }
  .mission-grid, .thesis-layout { display: block; }
  h1 { font-size: 36px; }
  h2 { font-size: 26px; break-after: avoid; }
  .mission-copy, .prose { font-size: 11pt; line-height: 1.6; max-width: none; }
  .thesis-layout { padding-block: 30px; }
  .thesis-area { background: white; }
  .chapter + .chapter { margin-top: 30px; padding-top: 24px; }
  .prose .key-point { font-size: 16pt; break-inside: avoid; }
  #possibilities .key-point:last-child { background: white; border: 1px solid var(--rule); }
  #possibilities .key-point:last-child strong { color: black; }
}

/* Adjoint Change Review */
.product-page .wrap { max-width: 1040px; }
.product-hero { padding-block: 64px 68px; }
.product-identity { border-left: 3px solid #a84629; padding-left: 20px; margin-bottom: 36px; }
.product-name { margin: 0; font-size: clamp(26px, 2.6vw, 32px); line-height: 1.25; font-weight: 500; letter-spacing: -.035em; color: var(--ink); }
.product-audience { margin: 10px 0 0; font-size: 19px; line-height: 1.6; color: #5b625f; }
.product-hero h1 { max-width: 1000px; margin: 0; font-size: clamp(40px, 4.7vw, 62px); line-height: 1.13; letter-spacing: -.04em; text-wrap: initial; }
.product-hero h1 span { display: block; }
.product-lead { max-width: 760px; margin: 26px 0 30px; font-size: 20px; line-height: 1.7; color: #505956; }
.product-page .contact-button { min-height: 50px; padding-inline: 25px; font-size: 15px; }
.product-section { border-top: 1px solid var(--rule); padding-block: 56px 60px; }
.product-section h2 { margin: 0 0 30px; max-width: 760px; font-size: clamp(30px, 3.1vw, 40px); line-height: 1.2; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
.product-questions { padding: 28px 0; background: #e9e7de; border: 1px solid #d4d6cc; border-radius: 5px; }
.product-questions p, .product-steps p, .product-summary, .product-control > p, .product-cta p { font-size: 17px; line-height: 1.75; color: #505956; }
.product-questions p { margin: 0; padding-inline: 26px; }
.product-questions p + p { border-left: 1px solid #d4d6cc; }
.product-questions strong { display: block; margin-bottom: 9px; font-size: 18px; line-height: 1.45; font-weight: 500; color: var(--ink); }
.product-summary { max-width: 760px; margin: 26px 0 0; }
.product-workflow { display: grid; grid-template-columns: .85fr 1.3fr; gap: 64px; align-items: start; }
.product-workflow h2 { margin: 0; }
.product-steps { list-style: none; padding: 0; margin: 0; counter-reset: step; }
.product-steps li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 18px; counter-increment: step; }
.product-steps li + li { border-top: 1px solid var(--rule); padding-top: 26px; margin-top: 26px; }
.product-steps li::before { content: "0" counter(step); padding-top: 3px; font-size: 18px; line-height: 1.5; font-variant-numeric: tabular-nums; color: var(--green); }
.product-steps h3 { margin: 0 0 10px; font-size: 22px; line-height: 1.35; font-weight: 500; letter-spacing: -.025em; }
.product-steps p { margin: 0; }
.product-control { display: grid; grid-template-columns: .85fr 1.3fr; gap: 64px; padding: 36px; border: 1px solid #d4d6cc; border-radius: 5px; background: #e9e7de; }
.product-control h2 { margin: 0; font-size: 32px; }
.product-control > p { max-width: 720px; margin: 0; }
.product-cta { padding-block: 64px 68px; display: flex; align-items: center; justify-content: space-between; gap: 48px; }
.product-cta h2 { max-width: 650px; margin: 0 0 18px; font-size: clamp(30px, 3.1vw, 40px); }
.product-cta p { margin: 0; }
.product-cta .contact-button { flex-shrink: 0; }

@media (max-width: 1000px) {
  .product-workflow, .product-control { gap: 36px; }
  .product-questions p { padding-inline: 20px; }
}

@media (max-width: 760px) {
  .product-hero { padding-block: 38px 44px; }
  .product-identity { padding-left: 16px; margin-bottom: 28px; }
  .product-audience { font-size: 17px; margin-top: 9px; }
  .product-hero h1 { font-size: clamp(36px, 7.2vw, 48px); line-height: 1.14; }
  .product-hero h1 span { margin-top: 8px; }
  .product-lead { font-size: 18px; margin-block: 22px 26px; }
  .product-section { padding-block: 36px 40px; }
  .product-section h2 { margin-bottom: 24px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-questions { padding: 4px 22px; }
  .product-questions p { padding: 20px 0; }
  .product-questions p + p { border-left: 0; border-top: 1px solid #d4d6cc; }
  .product-summary { margin-top: 22px; }
  .product-workflow { grid-template-columns: 1fr; gap: 4px; }
  .product-steps li { grid-template-columns: 30px minmax(0, 1fr); gap: 14px; }
  .product-steps h3 { font-size: 21px; }
  .product-control { grid-template-columns: 1fr; gap: 16px; padding: 26px 22px; }
  .product-control h2 { margin: 0; font-size: 30px; }
  .product-cta { align-items: flex-start; flex-direction: column; padding-block: 40px 48px; gap: 24px; }
}

@media print {
  .product-hero, .product-section, .product-cta { padding-block: 20px; }
  .product-hero h1 { font-size: 36px; }
  .product-name { font-size: 24px; }
  .product-grid, .product-workflow, .product-control { display: block; }
  .product-questions p { padding: 12px; }
  .product-questions p + p { border-left: 0; }
  .product-workflow h2 { margin-bottom: 24px; }
  .product-control { background: white; padding: 20px; }
  .product-control h2 { margin-bottom: 16px; }
  .product-cta { display: block; }
}

/* Shared framing from the approved light homepage. */
.site-header.wrap, .site-footer.wrap { width: min(1280px, calc(100% - 104px)); max-width: 1280px; }
.site-header { min-height: 112px; padding-block: 28px; gap: 28px; border-bottom: 1px solid var(--rule); }
.wordmark { gap: 12px; }
.mark { width: 45px; height: 43px; color: currentColor; }
.wordmark span { font-size: 34px; letter-spacing: -.06em; font-weight: 500; }
.site-nav { gap: 30px; }
.thesis-link { color: var(--ink); font-size: 14px; }
.nav-demo { display: inline-flex; align-items: center; gap: 24px; min-height: 43px; border: 1px solid currentColor; padding: 9px 16px; text-decoration: none; font-size: 14px; }
.nav-demo:hover { color: var(--green); }
.product-dropdown { background: var(--paper); border-radius: 2px; }
.product-entry:hover, .product-entry:focus-visible { background: #e8e6dc; }
.contact-button { min-height: 50px; border-radius: 0; }
.product-identity { padding-left: 22px; }
.product-name { font-size: clamp(30px, 3.2vw, 42px); }
.product-questions, .product-control, .demo-form-panel, .form-field input, .form-field textarea { border-radius: 2px; }
.site-footer { border-top: 1px solid var(--rule); padding-block: 32px; }
.footer-brand { font-size: 25px; }
.footer-links { display: flex; gap: 28px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { text-decoration: underline; }
@media (max-width: 1100px) {
  .site-header.wrap, .site-footer.wrap { width: calc(100% - 72px); }
}
@media (max-width: 800px) {
  .site-header.wrap, .site-footer.wrap { width: calc(100% - 48px); }
  .site-header { padding-block: 22px; min-height: 0; flex-wrap: wrap; gap: 17px; }
  .wordmark span { font-size: 29px; }
  .mark { width: 36px; height: 35px; }
  .site-nav { flex-basis: auto; gap: 22px; }
  .nav-demo { display: none; }
  .product-dropdown { left: auto; right: 0; width: min(380px, calc(100vw - 48px)); }
  .footer-links { margin-left: auto; gap: 20px; }
  .site-footer { gap: 18px; }
  .site-footer p { order: 3; flex-basis: 100%; font-size: 12px; }
}
@media (max-width: 440px) {
  .site-header.wrap, .site-footer.wrap { width: calc(100% - 36px); }
  .site-header { gap: 14px; }
  .site-nav { gap: 16px; }
  .thesis-link { font-size: 12px; }
  .wordmark { gap: 7px; }
  .wordmark span { font-size: 26px; }
  .mark { width: 31px; height: 31px; }
  .product-dropdown { width: min(350px, calc(100vw - 36px)); }
}
@media print {
  .site-header.wrap, .site-footer.wrap { width: 100%; }
  .site-header { padding: 0; min-height: 0; border: 0; }
  .site-nav { display: none; }
}