/* Load after sections.css. Scope: commercial outcomes, engineering methods, trust, and sphere frame. */
.proof-intro-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 44px; padding-bottom: 4px; border-bottom: 1px solid #8c9586; text-decoration: none; font-size: 12px; }

/* The commercial promise stays visible before the engineering explanation. */
.proof-outcomes-restored { padding: 48px 0 0; scroll-margin-top: 8px; }
.proof-outcomes-restored-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: auto auto 1fr; padding-bottom: 48px; border-bottom: 1px solid var(--line, #d3d2c8); }
.proof-outcome-restored { display: grid; grid-row: span 3; grid-template-rows: subgrid; align-items: start; min-width: 0; padding: 0 36px; }
.proof-outcome-restored:first-child { padding-left: 0; }
.proof-outcome-restored:last-child { padding-right: 0; }
.proof-outcome-restored + .proof-outcome-restored { border-left: 1px solid var(--line, #d3d2c8); }
.proof-outcomes-restored .proof-outcome-restored h2 { margin: 0; font-size: clamp(27px, 2.65vw, 35px); line-height: 1.16; letter-spacing: -.035em; text-wrap: initial; }
.proof-outcome-flow { display: block; width: 100%; height: 124px; margin: 28px 0 20px; overflow: visible; }
.proof-outcome-flow path { fill: none; stroke: #99ad88; stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; opacity: .15; vector-effect: non-scaling-stroke; }
.proof-outcome-flow path:nth-last-child(2) { opacity: .09; }
.proof-outcome-flow path:last-child { opacity: .05; }
.proof-outcome-flow .proof-outcome-flow-main { stroke-width: 1.45; opacity: .85; }
.proof-outcome-flow .proof-outcome-direction { stroke: #78965c; stroke-width: 1.55; opacity: 1; }
.proof-outcome-restored p { max-width: 33ch; margin: 0; color: var(--muted, #697069); font-size: 15px; line-height: 1.65; }

@media (max-width: 950px) {
  .proof-outcome-restored { padding-inline: 23px; }
  .proof-outcomes-restored .proof-outcome-restored h2 { font-size: 27px; }
  .proof-outcome-restored p { font-size: 14px; }
  .proof-outcome-flow { height: 107px; margin-block: 25px 17px; }
}
@media (max-width: 650px) {
  .proof-outcomes-restored { padding-top: 36px; }
  .proof-outcomes-restored-grid { grid-template-columns: 1fr; grid-template-rows: none; padding-bottom: 0; }
  .proof-outcome-restored, .proof-outcome-restored:first-child, .proof-outcome-restored:last-child { display: block; grid-row: auto; padding: 0 0 30px; }
  .proof-outcome-restored + .proof-outcome-restored { border-left: 0; border-top: 1px solid var(--line, #d3d2c8); padding-top: 28px; }
  .proof-outcomes-restored .proof-outcome-restored h2 { font-size: 29px; }
  .proof-outcome-flow { height: 92px; max-width: 380px; margin: 20px 0 17px; }
  .proof-outcome-restored p { max-width: 38ch; font-size: 14px; }
}

/* One editorial field: the promise, the engineering methods, and what returns to people. */
.proof-assurance { padding: 65px 0 0; }
/* Global scroll padding supplies the fixed-nav offset (110px desktop / 90px mobile). */
.proof-assurance-frame { padding-bottom: 40px; scroll-margin-top: 8px; }
.proof-assurance-main { display: grid; grid-template-columns: minmax(0, .34fr) minmax(0, .66fr); gap: 64px; min-height: 390px; align-items: center; }
.proof-assurance-copy { padding-bottom: 7px; }
.proof-assurance-copy .proof-kicker { padding-top: 0; font-size: 12px; line-height: 1.6; }
.proof-assurance .proof-assurance-copy h2 { font-size: clamp(38px, 3.4vw, 48px); line-height: 1.09; letter-spacing: -.04em; margin-top: 23px; text-wrap: initial; }
.proof-assurance-copy .proof-assurance-definition { max-width: 37ch; margin-top: 25px; font-size: 18px; line-height: 1.7; color: var(--ink, #24302a); }
.proof-assurance-copy .proof-intro-link { gap: 22px; margin-top: 25px; font-size: 17px; }
/* One connected evidence spine. Open rows keep the methods easy to scan. */
.proof-method-plate { min-width: 0; margin: 0; }
.proof-method-plate > figcaption { position: relative; margin: 0 0 23px 32px; }
.proof-method-plate > figcaption::before { content: ""; position: absolute; top: 15px; left: -32px; width: 7px; height: 7px; border-radius: 50%; background: #819567; }
.proof-method-plate > figcaption::after { content: ""; position: absolute; left: -29px; top: 20px; bottom: -23px; width: 1px; background: #a3af97; }
.proof-method-plate > figcaption strong { display: block; color: var(--ink, #24302a); font-family: var(--serif, Georgia, serif); font-size: 29px; font-weight: 400; line-height: 1.2; letter-spacing: -.035em; }
.proof-method-plate > figcaption span { display: block; margin-top: 7px; color: var(--muted, #697069); font-size: 18px; line-height: 1.5; }
.proof-evidence-spine { position: relative; padding-left: 32px; }
.proof-engineering-rows { position: relative; list-style: none; margin: 0; padding: 0; }
.proof-engineering-rows::before { content: ""; position: absolute; left: -29px; top: -23px; bottom: -39px; width: 1px; background: #a3af97; }
.proof-engineering-rows > li { position: relative; display: grid; grid-template-columns: 1fr 1.05fr; gap: 26px; align-items: start; padding: 27px 0; border-top: 1px solid var(--line, #d3d2c8); }
.proof-engineering-rows > li::before { content: ""; position: absolute; top: 36px; left: -32px; width: 7px; height: 7px; border-radius: 50%; background: #819567; }
.proof-assurance .proof-engineering-rows h3 { margin: 0; font-size: 25px; line-height: 1.18; letter-spacing: -.025em; text-wrap: initial; }
.proof-engineering-rows p { margin: 0; max-width: 30ch; font-size: 18px; line-height: 1.5; color: var(--muted, #697069); }
.proof-method-output { position: relative; margin-top: 0; padding: 29px 0 0; border-top: 1px solid var(--line, #d3d2c8); }
.proof-method-output::before { content: ""; position: absolute; top: 38px; left: -32px; width: 7px; height: 7px; border: 1px solid #819567; border-radius: 50%; background: var(--paper, #f3f0e8); box-shadow: 0 0 0 4px var(--paper, #f3f0e8); }
.proof-assurance .proof-method-output h3 { margin: 0; font-size: 29px; line-height: 1.2; letter-spacing: -.035em; }
.proof-method-output p { margin: 12px 0 0; font-size: 18px; color: var(--muted, #697069); line-height: 1.55; }
.proof-assurance .proof-method-context { margin: 25px 0 0 32px; max-width: 58ch; font-size: 17px; line-height: 1.55; color: var(--muted, #697069); }
.proof-method-context strong { font-weight: 500; color: #58684b; }

@media (max-width: 1100px) {
  .proof-engineering-rows > li { gap: 22px; }
  .proof-assurance .proof-engineering-rows h3 { font-size: 24px; }
}
@media (max-width: 950px) {
  .proof-method-plate { width: 100%; margin: 0; }
}
@media (max-width: 600px) {
  .proof-method-plate > figcaption { margin-left: 23px; }
  .proof-method-plate > figcaption span { font-size: 17px; }
  .proof-method-plate > figcaption::before { left: -23px; }
  .proof-method-plate > figcaption::after { left: -20px; }
  .proof-evidence-spine { padding-left: 23px; }
  .proof-engineering-rows > li { display: block; padding: 22px 0; }
  .proof-engineering-rows > li::before { left: -23px; top: 31px; }
  .proof-engineering-rows::before { left: -20px; bottom: -35px; }
  .proof-assurance .proof-engineering-rows h3 { font-size: 26px; }
  .proof-engineering-rows p { margin-top: 9px; max-width: 32ch; font-size: 17px; }
  .proof-method-output { padding-top: 25px; }
  .proof-method-output::before { left: -23px; top: 34px; }
  .proof-assurance .proof-method-output h3 { max-width: 19ch; font-size: 29px; }
  .proof-method-output p { font-size: 17px; }
  .proof-assurance .proof-method-context { margin: 23px 0 0 23px; font-size: 17px; }
}

.proof-intro-trust { padding: 50px 0 0; }
.proof-intro-trust > .proof-shell { padding-bottom: 40px; border-bottom: 1px solid var(--line, #d3d2c8); }
.proof-intro-trust h2 { font-family: var(--serif, Georgia, serif); font-weight: 400; font-size: 29px; line-height: 1.25; letter-spacing: -.025em; color: var(--ink, #24302a); text-align: center; margin: 0; }
.proof-trust-projects { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: center; gap: 22px 54px; margin: 30px auto 0; max-width: 1000px; }
.proof-trust-projects a { display: flex; align-items: center; justify-content: center; min-height: 74px; min-width: 0; text-decoration: none; color: #73796e; transition: color .18s ease; }
.proof-trust-projects a:is(:hover, :focus-visible) { color: var(--ink, #24302a); }
.proof-trust-projects img { display: block; object-fit: contain; max-width: 100%; height: auto; filter: grayscale(1) brightness(.48); opacity: .69; transition: filter .22s ease, opacity .22s ease; }
.proof-trust-projects a:focus-visible { outline: 1px solid var(--ink, #24302a); outline-offset: 6px; border-radius: 2px; }
.proof-trust-tyk { width: 82px; }
.proof-trust-omarchy { width: 180px; }
.proof-trust-grpc { width: 126px; }
.proof-trust-projects .proof-trust-grpc { filter: grayscale(1); mix-blend-mode: multiply; }
.proof-trust-hive { width: 130px; }
.proof-trust-wundergraph { width: 170px; }
.proof-trust-apollo { width: 109px; }
.proof-trust-rsync { display: block; position: relative; width: 154px; height: 70px; overflow: hidden; }
.proof-trust-projects .proof-trust-rsync img { position: absolute; width: 171px; max-width: none; left: 50%; top: 50%; transform: translate(-50%, -50%); filter: grayscale(1); mix-blend-mode: multiply; opacity: .64; }
.proof-trust-projects a:is(:hover, :focus-visible) img { filter: none; opacity: 1; mix-blend-mode: normal; }
.proof-trust-jsonparser { font-size: 27px; font-weight: 500; letter-spacing: -.05em; }


.proof-intro-surface { padding-top: 35px; padding-bottom: 82px; }
.proof-intro-surface .proof-surface-grid { grid-template-columns: .85fr 1.15fr; gap: 78px; padding-top: 67px; }
.proof-intro-surface .proof-surface-copy h2 { font-size: clamp(39px, 4vw, 58px); line-height: 1.08; }
.proof-intro-surface .proof-surface-copy .proof-lead { max-width: 40ch; font-size: 16px; line-height: 1.75; }
.proof-intro-surface .proof-surface-copy .proof-intro-link { margin-top: 28px; }
.proof-intro-surface .proof-sphere-figure { width: 100%; max-width: 590px; margin-left: auto; }
.proof-intro-surface .proof-sphere-caption { padding: 0; border: 0; }
.proof-intro-surface .proof-sphere-footer { margin-top: 15px; padding-top: 12px; border-top: 1px solid var(--line, #d3d2c8); }
.proof-intro-surface .proof-motion-tools { gap: 22px; }
.proof-intro-surface .proof-motion-tools button { min-height: 40px; font-size: 11px; }
.proof-intro-surface .proof-art-note { max-width: 230px; line-height: 1.5; }

@media (max-width: 1100px) {
  .proof-trust-projects { column-gap: 35px; }
  .proof-trust-tyk { width: 74px; }
  .proof-trust-omarchy { width: 157px; }
  .proof-trust-grpc { width: 118px; }
  .proof-trust-hive { width: 124px; }
  .proof-intro-surface .proof-surface-grid { gap: 38px; }
  .proof-intro-surface .proof-surface-copy h2 { font-size: 43px; }
  .proof-intro-surface .proof-surface-copy .proof-lead { font-size: 15px; }
}

@media (max-width: 850px) {
  .proof-intro-trust { padding: 47px 0 0; }
  .proof-intro-trust h2 { font-size: 28px; }
  .proof-trust-projects { column-gap: 25px; max-width: 680px; margin-top: 27px; }
  .proof-trust-projects a { min-height: 70px; }
  .proof-trust-omarchy { width: 140px; }
  .proof-trust-jsonparser { font-size: 24px; }
}

@media (max-width: 760px) {
  .proof-intro-surface { padding-top: 0; padding-bottom: 65px; }
  .proof-intro-surface .proof-surface-grid { grid-template-columns: 1fr; gap: 34px; padding-top: 55px; }
  .proof-intro-surface .proof-surface-copy h2 { font-size: clamp(39px, 6.4vw, 48px); }
  .proof-intro-surface .proof-surface-copy .proof-lead { max-width: 40ch; font-size: 16px; }
  .proof-intro-surface .proof-surface-copy .proof-intro-link { margin-top: 22px; }
  .proof-intro-surface .proof-sphere-figure { max-width: 540px; margin-inline: auto; }
  .proof-intro-surface .proof-sphere-footer { margin-top: 10px; gap: 6px 18px; }
  .proof-intro-surface .proof-motion-tools button { min-height: 44px; font-size: 12px; }
}

@media (max-width: 600px) {
  .proof-trust-projects { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 440px; }
}

@media (max-width: 500px) {
  .proof-intro-trust { padding-top: 39px; padding-bottom: 0; }
  .proof-intro-trust h2 { font-size: 25px; max-width: 280px; margin-inline: auto; }
  .proof-trust-projects { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 19px 24px; margin-top: 27px; }
  .proof-trust-tyk { width: 72px; }
  .proof-trust-omarchy { width: 143px; }
  .proof-trust-rsync { width: 140px; height: 67px; }
  .proof-trust-grpc { width: 114px; }
  .proof-trust-hive { width: 126px; }
  .proof-intro-surface .proof-art-note { max-width: 182px; }
}

@media (max-width: 360px) {
  .proof-trust-projects { column-gap: 20px; }
  .proof-trust-tyk { width: 65px; }
  .proof-trust-rsync { width: 128px; }
  .proof-trust-grpc { width: 108px; }
  .proof-trust-hive { width: 120px; }
  .proof-intro-surface .proof-sphere-footer { flex-wrap: nowrap; }
  .proof-intro-surface .proof-motion-tools { gap: 17px; }
  .proof-intro-surface .proof-art-note { max-width: 145px; }
}

.proof-intro-surface .proof-surface-copy .proof-surface-impact { margin-top: 23px; font-size: 18px; color: var(--ink, #24302a); }
.proof-intro-surface .proof-surface-copy .proof-lead { margin-top: 14px !important; }

@media (max-width: 1100px) {
  .proof-assurance-main { grid-template-columns: minmax(0, .35fr) minmax(0, .65fr); gap: 36px; }
  .proof-assurance .proof-assurance-copy h2 { font-size: 38px; }
}
@media (max-width: 950px) {
  .proof-assurance { padding-top: 55px; }
  .proof-assurance-main { grid-template-columns: 1fr; gap: 33px; min-height: 0; }
  .proof-assurance-copy { display: grid; grid-template-columns: 1fr 1fr; column-gap: 42px; align-items: start; }
  .proof-assurance-copy .proof-kicker { grid-column: 1; grid-row: 1; }
  .proof-assurance .proof-assurance-copy h2 { grid-column: 1; grid-row: 2 / 4; margin-top: 20px; font-size: 39px; }
  .proof-assurance-copy .proof-assurance-definition { grid-column: 2; grid-row: 1 / 3; margin-top: 0; max-width: none; }
  .proof-assurance-copy .proof-intro-link { grid-column: 2; grid-row: 3; justify-self: start; margin-top: 17px; font-size: 17px; }
}

@media (max-width: 600px) {
  .proof-assurance { padding-top: 49px; }
  .proof-assurance-frame { padding-bottom: 31px; }
  .proof-assurance-main { gap: 34px; }
  .proof-assurance-copy { display: block; max-width: 460px; }
  .proof-assurance .proof-assurance-copy h2 { font-size: clamp(35px, 9vw, 42px); margin-top: 20px; }
  .proof-assurance-copy .proof-assurance-definition { margin-top: 22px; max-width: 39ch; }
  .proof-assurance-copy .proof-intro-link { margin-top: 21px; font-size: 17px; }
  .proof-assurance-copy .proof-assurance-definition { font-size: 17px; line-height: 1.65; }
}