/* ZeroField Architecture — page-local implementation */

.architecture-page {
  --arch-bg: #06131d;
  --arch-bg-deep: #05111a;
  --arch-text: #f3f2ef;
  --arch-muted: #a8bed0;
  --arch-muted-strong: #c2d1dc;
  --arch-blue: #3ccaff;
  --arch-blue-strong: #18a9f4;
  --arch-blue-dim: rgba(49, 187, 240, .34);
  --arch-gold: #f0c34f;
  --arch-gold-strong: #ffcf57;
  --arch-gold-dim: rgba(236, 184, 71, .32);
  --arch-line: #28516a;
  --arch-line-soft: rgba(45, 91, 119, .55);
  --arch-grid: rgba(59, 118, 152, .10);

  position: relative;
  width: 100%;
  overflow: clip;
  background:
    radial-gradient(circle at 73% 12%, rgba(16, 117, 183, .08), transparent 29%),
    radial-gradient(circle at 38% 65%, rgba(13, 94, 148, .05), transparent 34%),
    linear-gradient(180deg, var(--arch-bg) 0%, var(--arch-bg-deep) 100%);
  color: var(--arch-text);
  font-family: "Inter", Arial, sans-serif;
}

.architecture-page::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .16;
  background-image:
    linear-gradient(var(--arch-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--arch-grid) 1px, transparent 1px);
  background-size: 112px 112px;
  mask-image: linear-gradient(to bottom, transparent 1%, #000 8%, #000 94%, transparent 100%);
}

.architecture-page *,
.architecture-page *::before,
.architecture-page *::after {
  box-sizing: border-box;
}

.architecture-page h1,
.architecture-page h2,
.architecture-page h3,
.architecture-page p {
  margin: 0;
}

.architecture-page a {
  color: inherit;
}

.architecture-section {
  position: relative;
  z-index: 1;
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--shell-gutter);
  border-bottom: 1px solid var(--arch-line);
  isolation: isolate;
}

.architecture-kicker {
  color: var(--arch-blue);
  font-size: 12px;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: .27em;
}

.architecture-page h1,
.architecture-page h2,
.architecture-page h3 {
  color: var(--arch-text);
  font-weight: 420;
}

.architecture-page h1 {
  font-size: clamp(52px, 4.4vw, 68px);
  line-height: .99;
  letter-spacing: -.038em;
}

.architecture-page h2 {
  font-size: clamp(31px, 2.65vw, 42px);
  line-height: 1.08;
  letter-spacing: -.025em;
}

.architecture-page h1 span,
.architecture-page h2 span {
  color: var(--arch-gold);
}

.architecture-page p {
  color: var(--arch-muted);
  font-size: 16px;
  line-height: 1.48;
}

.architecture-line-blue {
  stroke: #20a8f7;
  stroke-width: 1;
  stroke-opacity: .72;
}

.architecture-line-gold {
  stroke: #e6ae49;
  stroke-width: 1;
  stroke-opacity: .70;
}

.architecture-line-faint {
  stroke-opacity: .32;
}

/* 01 — Hero */
.architecture-hero {
  height: 495px;
  min-height: 495px;
  display: grid;
  grid-template-columns: minmax(0, .93fr) minmax(560px, 1.07fr);
  align-items: center;
  overflow: hidden;
}

.architecture-hero-copy {
  position: relative;
  z-index: 3;
  align-self: center;
  max-width: 650px;
  padding-bottom: 2px;
}

.architecture-hero-copy .architecture-kicker {
  margin-bottom: 20px;
}

.architecture-hero-copy h1 {
  margin-bottom: 18px;
}

.architecture-hero-lede {
  max-width: 610px;
  color: var(--arch-blue) !important;
  font-size: 21px !important;
  line-height: 1.38 !important;
}

.architecture-hero-body {
  max-width: 600px;
  margin-top: 17px !important;
}

.architecture-scroll {
  display: inline-grid;
  grid-template-columns: 24px auto;
  align-items: center;
  gap: 20px;
  margin-top: 22px;
  color: #c6dce8;
  font-size: 10px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .24em;
  text-decoration: none;
}

.architecture-scroll > span:first-child {
  color: var(--arch-blue);
  font-size: 38px;
  font-weight: 200;
  line-height: 1;
}

.architecture-hero-visual {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;
  width: 58%;
  height: 100%;
}

.architecture-hero-grid {
  stroke: #14517a;
  stroke-width: .8;
  stroke-opacity: .20;
}

.architecture-hero-edges,
.architecture-model-edges {
  stroke: #81d6ff;
  stroke-width: 1;
  stroke-opacity: .72;
}

.architecture-plane,
.architecture-model-plane {
  stroke-width: 1;
}

.architecture-plane--blue-a,
.architecture-model-plane--blue-a {
  fill: url(#arch-plane-blue-a);
  stroke: #52c9ff;
  stroke-opacity: .72;
}

.architecture-plane--blue-b,
.architecture-model-plane--blue-b,
.architecture-model-plane--blue-c {
  fill: url(#arch-plane-blue-b);
  stroke: #4fc8ff;
  stroke-opacity: .65;
}

.architecture-plane--gold,
.architecture-model-plane--gold {
  fill: url(#arch-plane-gold);
  stroke: #f1c264;
  stroke-opacity: .78;
}

/* 02 — From concept to structure */
.architecture-concept {
  height: 300px;
  min-height: 300px;
  display: grid;
  grid-template-columns: minmax(350px, .85fr) minmax(0, 1.35fr);
  gap: 86px;
  align-items: center;
}

.architecture-concept-copy {
  align-self: center;
  max-width: 530px;
}

.architecture-concept-copy .architecture-kicker {
  margin-bottom: 17px;
}

.architecture-concept-copy h2 {
  margin-bottom: 15px;
}

.architecture-concept-copy > p:last-child {
  max-width: 520px;
}

.architecture-progression {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 62px 1.15fr 62px 1fr;
  align-items: center;
  min-width: 0;
}

.architecture-progression-step {
  min-width: 0;
}

.architecture-progression-mark {
  display: block;
  width: 36px;
  height: 2px;
  margin-bottom: 22px;
  background: var(--arch-blue);
  box-shadow: 0 0 10px rgba(27, 179, 239, .10);
}

.architecture-progression-step--architecture .architecture-progression-mark {
  background: var(--arch-gold);
}

.architecture-progression-step h3 {
  margin-bottom: 13px;
  font-size: 21px;
  line-height: 1.18;
  letter-spacing: -.01em;
}

.architecture-progression-step p {
  color: #65d1fb;
  font-size: 15px;
  line-height: 1.35;
}

.architecture-progression-connector {
  position: relative;
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--arch-gold), rgba(240, 195, 79, .12));
}

.architecture-progression-connector::after {
  content: "";
  position: absolute;
  top: -28px;
  right: 0;
  width: 1px;
  height: 56px;
  background: linear-gradient(180deg, transparent, var(--arch-gold), transparent);
}

/* 03 — Selected public architectural model */
.architecture-model {
  height: 410px;
  min-height: 410px;
  display: grid;
  grid-template-columns: minmax(315px, .36fr) minmax(0, .64fr);
  gap: 38px;
  align-items: center;
}

.architecture-model-copy {
  max-width: 365px;
}

.architecture-model-copy .architecture-kicker {
  margin-bottom: 20px;
}

.architecture-model-copy h2 {
  margin-bottom: 18px;
}

.architecture-model-copy > p:last-child {
  max-width: 355px;
}

.architecture-model-desktop {
  position: relative;
  height: 360px;
  min-width: 0;
}

.architecture-model-desktop > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.architecture-model-grid {
  stroke: #155477;
  stroke-width: .8;
  stroke-opacity: .28;
  stroke-dasharray: 2 4;
}

.architecture-model-plane--blue-a,
.architecture-model-plane--blue-b,
.architecture-model-plane--blue-c {
  fill: url(#arch-model-blue);
}

.architecture-model-plane--gold {
  fill: url(#arch-model-gold);
}

.architecture-model-label {
  position: absolute;
  width: 190px;
}

.architecture-model-label h3 {
  margin-bottom: 4px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.architecture-model-label p {
  color: #80ccef;
  font-size: 12px;
  line-height: 1.2;
}

.architecture-model-label--context {
  top: 66px;
  left: 1%;
}
.architecture-model-label--roles {
  top: 18px;
  left: 49%;
}
.architecture-model-label--control {
  top: 72px;
  right: -4%;
}
.architecture-model-label--coordination {
  bottom: 60px;
  left: -3%;
}
.architecture-model-label--state {
  bottom: 18px;
  left: 49%;
}
.architecture-model-label--integration {
  right: -4%;
  bottom: 60px;
}

.architecture-model-caption {
  position: absolute;
  right: -2%;
  bottom: 3px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #75cff5;
  font-size: 9px;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: .16em;
}

.architecture-model-caption > span {
  display: block;
  width: 36px;
  height: 2px;
  background: var(--arch-blue);
}

.architecture-model-tablet,
.architecture-model-mobile {
  display: none;
}

/* 04 — Key architectural concerns */
.architecture-concerns {
  min-height: 330px;
  padding-top: 30px;
  padding-bottom: 28px;
}

.architecture-concerns-heading {
  margin-bottom: 16px;
}

.architecture-concerns-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.architecture-concern {
  position: relative;
  min-height: 235px;
  padding: 2px 42px 0 0;
}

.architecture-concern + .architecture-concern {
  padding-left: 48px;
  border-left: 1px solid var(--arch-line);
}

.architecture-concern-accent {
  display: block;
  width: 30px;
  height: 3px;
  margin-bottom: 15px;
  background: var(--arch-gold);
}

.architecture-concern--execution .architecture-concern-accent {
  background: var(--arch-blue);
}

.architecture-concern h3 {
  margin-bottom: 18px;
  font-size: 23px;
  line-height: 1.12;
  letter-spacing: -.015em;
}

.architecture-concern p {
  max-width: 390px;
  font-size: 15px;
  line-height: 1.52;
}

/* 05 — Selective disclosure */
.architecture-selective {
  min-height: 145px;
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 70px;
  align-items: center;
}

.architecture-selective-copy .architecture-kicker {
  margin-bottom: 14px;
}

.architecture-selective h2 {
  font-size: 31px;
}

.architecture-selective > p {
  max-width: 600px;
}

/* 06 — Framework to systems */
.architecture-transition {
  min-height: 195px;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.architecture-transition-copy .architecture-kicker {
  margin-bottom: 14px;
}

.architecture-transition-copy h2 {
  margin-bottom: 13px;
  font-size: 31px;
}

.architecture-transition-copy > p:last-child {
  max-width: 360px;
  font-size: 14px;
}

.architecture-transition-model {
  display: grid;
  grid-template-columns: 1fr 40px 1.15fr 40px 1fr;
  gap: 12px;
  align-items: center;
}

.architecture-transition-model article {
  min-height: 118px;
  padding: 18px 22px;
  border: 1px solid var(--arch-blue-strong);
  border-radius: 4px;
  background: rgba(6, 24, 35, .36);
}

.architecture-transition-model article.architecture-transition-model-active {
  border-color: var(--arch-gold);
  background: linear-gradient(135deg, rgba(10, 27, 38, .54), rgba(47, 36, 16, .24));
}

.architecture-transition-model h3 {
  margin-bottom: 12px;
  color: #69d2fb;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.architecture-transition-model p {
  color: #bdd0dc;
  font-size: 14px;
  line-height: 1.35;
}

.architecture-transition-arrow {
  color: var(--arch-gold);
  font-size: 30px;
  font-weight: 300;
  text-align: center;
}

/* 07 — Systems handoff */
.architecture-handoff {
  min-height: 110px;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr) auto;
  gap: 54px;
  align-items: center;
  border-bottom: 0;
}

.architecture-handoff h2 {
  font-size: 29px;
  line-height: 1.08;
}

.architecture-handoff > p {
  max-width: 580px;
  font-size: 14px;
}

.architecture-handoff-mobile-title,
.architecture-handoff-mobile-copy {
  display: none;
}

.architecture-page .cta--primary {
  display: inline-flex;
  min-width: 220px;
  min-height: 54px;
  padding: 0 24px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border: 0;
  border-radius: 4px;
  background: linear-gradient(180deg, #ffd86e 0%, #f0bd45 100%);
  box-shadow: 0 0 20px rgba(238, 180, 63, .10);
  color: #08131b;
  font-size: 16px;
  font-weight: 650;
  line-height: 1;
  text-decoration: none;
}

.architecture-page .cta--primary::after {
  content: "→";
  font-size: 22px;
  font-weight: 400;
}

/* Tablet — genuine intermediate composition */
@media (max-width: 939px) and (min-width: 680px) {
  .architecture-kicker {
    font-size: 10px;
    letter-spacing: .24em;
  }

  .architecture-page h1 {
    font-size: 42px;
  }

  .architecture-page h2 {
    font-size: 27px;
  }

  .architecture-page p {
    font-size: 14px;
  }

  .architecture-section {
    padding-inline: 30px;
  }

  .architecture-hero {
    height: 300px;
    min-height: 300px;
    grid-template-columns: 1fr;
    align-items: center;
  }

  .architecture-hero-copy {
    width: 58%;
    max-width: 430px;
  }

  .architecture-hero-copy .architecture-kicker {
    margin-bottom: 14px;
  }

  .architecture-hero-copy h1 {
    margin-bottom: 14px;
  }

  .architecture-hero-lede {
    font-size: 16px !important;
    line-height: 1.35 !important;
  }

  .architecture-hero-body {
    display: none;
  }

  .architecture-scroll {
    margin-top: 18px;
    font-size: 9px;
  }

  .architecture-scroll > span:first-child {
    font-size: 30px;
  }

  .architecture-hero-visual {
    width: 55%;
  }

  .architecture-concept {
    height: 190px;
    min-height: 190px;
    grid-template-columns: 315px minmax(0, 1fr);
    gap: 30px;
  }

  .architecture-concept-copy h2 {
    margin-bottom: 0;
  }

  .architecture-concept-copy > p:last-child {
    display: none;
  }

  .architecture-progression {
    grid-template-columns: 1fr 38px 1.2fr 38px 1fr;
  }

  .architecture-progression-mark {
    width: 32px;
    margin-bottom: 15px;
  }

  .architecture-progression-step h3 {
    margin-bottom: 8px;
    font-size: 16px;
  }

  .architecture-progression-step p {
    font-size: 13px;
  }

  .architecture-progression-connector::after {
    top: -22px;
    height: 44px;
  }

  .architecture-model {
    height: 320px;
    min-height: 320px;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 30px;
  }

  .architecture-model-copy .architecture-kicker {
    margin-bottom: 12px;
  }

  .architecture-model-copy h2 {
    margin-bottom: 12px;
    font-size: 25px;
  }

  .architecture-model-copy > p:last-child {
    font-size: 12px;
    line-height: 1.38;
  }

  .architecture-model-desktop {
    display: none;
  }

  .architecture-model-tablet {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 42px;
    row-gap: 16px;
  }

  .architecture-model-tablet article {
    display: grid;
    grid-template-columns: 5px minmax(0, 1fr);
    gap: 16px;
    min-width: 0;
  }

  .architecture-model-tablet article > span {
    display: block;
    width: 4px;
    min-height: 42px;
    background: var(--arch-blue);
  }

  .architecture-model-tablet article:nth-child(2) > span,
  .architecture-model-tablet article:nth-child(3) > span,
  .architecture-model-tablet article:nth-child(6) > span {
    background: var(--arch-gold);
  }

  .architecture-model-tablet h3 {
    margin-bottom: 5px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: .02em;
    text-transform: uppercase;
  }

  .architecture-model-tablet p {
    color: #79caf0;
    font-size: 12px;
    line-height: 1.28;
  }

  .architecture-concerns {
    min-height: 250px;
    padding-top: 24px;
    padding-bottom: 20px;
  }

  .architecture-concerns-heading {
    margin-bottom: 14px;
  }

  .architecture-concern {
    min-height: 184px;
    padding-right: 18px;
  }

  .architecture-concern + .architecture-concern {
    padding-left: 20px;
  }

  .architecture-concern-accent {
    width: 5px;
    height: 28px;
    margin-bottom: -28px;
  }

  .architecture-concern h3 {
    min-height: 45px;
    margin: 0 0 10px 18px;
    font-size: 16px;
  }

  .architecture-concern p {
    font-size: 12px;
    line-height: 1.42;
  }

  .architecture-selective {
    min-height: 105px;
    grid-template-columns: 1fr 1fr;
    gap: 44px;
  }

  .architecture-selective-copy .architecture-kicker {
    margin-bottom: 10px;
  }

  .architecture-selective h2 {
    font-size: 22px;
  }

  .architecture-selective > p {
    font-size: 13px;
  }

  .architecture-transition {
    min-height: 165px;
    display: block;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .architecture-transition-copy {
    display: none;
  }

  .architecture-transition::before {
    content: "FROM FRAMEWORK TO SYSTEMS";
    display: block;
    margin-bottom: 14px;
    color: var(--arch-blue);
    font-size: 10px;
    font-weight: 650;
    line-height: 1.2;
    letter-spacing: .24em;
  }

  .architecture-transition-model {
    grid-template-columns: 1fr 34px 1.2fr 34px 1fr;
  }

  .architecture-transition-model article {
    min-height: 98px;
    padding: 14px 16px;
  }

  .architecture-transition-model h3 {
    font-size: 10px;
  }

  .architecture-transition-model p {
    font-size: 12px;
  }

  .architecture-handoff {
    min-height: 150px;
    grid-template-columns: 1fr auto;
    gap: 30px 50px;
    align-content: center;
  }

  .architecture-handoff h2 {
    grid-column: 1;
    font-size: 24px;
  }

  .architecture-handoff > p {
    grid-column: 1;
    margin-top: -18px;
    font-size: 13px;
  }

  .architecture-handoff .cta--primary {
    grid-column: 2;
    grid-row: 1 / 3;
    min-width: 202px;
  }
}

/* Mobile — long-form native recomposition */
@media (max-width: 679px) {
  .architecture-page::before {
    opacity: .12;
    background-size: 82px 82px;
  }

  .architecture-section {
    padding-inline: 16px;
  }

  .architecture-kicker {
    font-size: 9px;
    letter-spacing: .20em;
  }

  .architecture-page h1 {
    font-size: 32px;
    line-height: 1.02;
  }

  .architecture-page h2 {
    font-size: 24px;
    line-height: 1.08;
  }

  .architecture-page p {
    font-size: 14px;
    line-height: 1.45;
  }

  .architecture-desktop-break {
    display: none;
  }

  .architecture-hero {
    height: 365px;
    min-height: 365px;
    display: block;
    padding-top: 22px;
    overflow: hidden;
  }

  .architecture-hero-copy {
    width: 100%;
    max-width: none;
  }

  .architecture-hero-copy .architecture-kicker {
    margin-bottom: 12px;
  }

  .architecture-hero-copy h1 {
    width: 78%;
    margin-bottom: 13px;
  }

  .architecture-hero-lede {
    width: 76%;
    max-width: 300px;
    font-size: 15px !important;
    line-height: 1.35 !important;
  }

  .architecture-hero-body {
    display: none;
  }

  .architecture-scroll {
    margin-top: 20px;
    gap: 14px;
    font-size: 8px;
  }

  .architecture-scroll > span:first-child {
    font-size: 30px;
  }

  .architecture-hero-visual {
    top: 56px;
    right: -142px;
    width: 405px;
    height: 310px;
    opacity: .92;
  }

  .architecture-concept {
    height: auto;
    min-height: 350px;
    display: block;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .architecture-concept-copy .architecture-kicker {
    margin-bottom: 12px;
  }

  .architecture-concept-copy h2 {
    width: 96%;
    margin-bottom: 15px;
  }

  .architecture-concept-copy > p:last-child {
    display: none;
  }

  .architecture-progression {
    display: block;
    margin-top: 14px;
    padding-left: 40px;
  }

  .architecture-progression::before {
    content: "";
    position: absolute;
    top: 7px;
    bottom: 7px;
    left: 16px;
    width: 2px;
    background: linear-gradient(180deg, var(--arch-blue), var(--arch-gold) 46%, var(--arch-gold));
  }

  .architecture-progression-step {
    position: relative;
    min-height: 76px;
    padding: 0 0 10px 2px;
  }

  .architecture-progression-mark {
    position: absolute;
    top: 0;
    left: -33px;
    width: 16px;
    height: 16px;
    margin: 0;
    border: 2px solid #9be7ff;
    border-radius: 50%;
    background: #0d75a4;
    box-shadow: 0 0 0 4px #06131d;
  }

  .architecture-progression-step--architecture .architecture-progression-mark,
  .architecture-progression-step--systems .architecture-progression-mark {
    border-color: #ffe29b;
    background: #d8a842;
  }

  .architecture-progression-step h3 {
    margin-bottom: 3px;
    font-size: 16px;
  }

  .architecture-progression-step p {
    font-size: 13px;
    line-height: 1.3;
  }

  .architecture-progression-connector {
    display: none;
  }

  .architecture-model {
    height: auto;
    min-height: 550px;
    display: block;
    padding-top: 20px;
    padding-bottom: 18px;
    overflow: hidden;
  }

  .architecture-model-copy {
    max-width: none;
  }

  .architecture-model-copy .architecture-kicker {
    margin-bottom: 12px;
  }

  .architecture-model-copy h2 {
    margin-bottom: 0;
    font-size: 23px;
  }

  .architecture-model-copy > p:last-child {
    display: none;
  }

  .architecture-model-desktop,
  .architecture-model-tablet {
    display: none;
  }

  .architecture-model-mobile {
    position: relative;
    display: block;
    min-height: 420px;
    margin-top: 18px;
    padding-left: 56px;
  }

  .architecture-mobile-axis {
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 22px;
    width: 2px;
    background: linear-gradient(180deg, var(--arch-blue), var(--arch-gold) 42%, var(--arch-blue) 78%, #a9a878);
    opacity: .9;
  }

  .architecture-mobile-domain {
    position: relative;
    z-index: 2;
    min-height: 68px;
    padding-bottom: 8px;
  }

  .architecture-mobile-domain-node {
    position: absolute;
    top: 0;
    left: -42px;
    width: 14px;
    height: 14px;
    border: 2px solid #a9e8ff;
    border-radius: 50%;
    background: #0c759f;
    box-shadow: 0 0 0 4px #06131d, 0 0 12px rgba(32, 181, 244, .26);
  }

  .architecture-mobile-domain--roles .architecture-mobile-domain-node,
  .architecture-mobile-domain--control .architecture-mobile-domain-node,
  .architecture-mobile-domain--coordination .architecture-mobile-domain-node {
    border-color: #ffe3a0;
    background: #d4a441;
  }

  .architecture-mobile-domain--integration .architecture-mobile-domain-node {
    border-color: #d6dfbd;
    background: #7f815d;
  }

  .architecture-mobile-domain h3 {
    margin-bottom: 3px;
    font-size: 11px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: .01em;
    text-transform: uppercase;
  }

  .architecture-mobile-domain p {
    color: #9bd2ec;
    font-size: 13px;
    line-height: 1.32;
  }

  .architecture-mobile-model-field {
    position: absolute;
    bottom: -8px;
    left: -17px;
    z-index: 0;
    width: 172px;
    height: 310px;
    opacity: .80;
  }

  .architecture-concerns {
    min-height: 620px;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .architecture-concerns-heading {
    margin-bottom: 14px;
  }

  .architecture-concerns-grid {
    display: block;
  }

  .architecture-concern {
    min-height: 0;
    padding: 0 0 20px 19px;
  }

  .architecture-concern + .architecture-concern {
    padding: 0 0 20px 19px;
    border-left: 0;
  }

  .architecture-concern:last-child {
    padding-bottom: 0;
  }

  .architecture-concern-accent {
    position: absolute;
    top: 1px;
    left: 0;
    width: 4px;
    height: 38px;
    margin: 0;
    background: var(--arch-gold);
  }

  .architecture-concern--execution .architecture-concern-accent {
    background: var(--arch-gold);
  }

  .architecture-concern h3 {
    margin-bottom: 8px;
    font-size: 16px;
    line-height: 1.18;
  }

  .architecture-concern p {
    font-size: 13px;
    line-height: 1.48;
  }

  .architecture-selective {
    min-height: 215px;
    display: block;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .architecture-selective-copy .architecture-kicker {
    margin-bottom: 12px;
  }

  .architecture-selective h2 {
    margin-bottom: 16px;
    font-size: 22px;
  }

  .architecture-selective > p {
    font-size: 12px;
    line-height: 1.45;
  }

  .architecture-transition {
    min-height: 330px;
    display: block;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .architecture-transition-copy .architecture-kicker {
    margin-bottom: 0;
  }

  .architecture-transition-copy h2,
  .architecture-transition-copy > p:last-child {
    display: none;
  }

  .architecture-transition-model {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 14px;
  }

  .architecture-transition-model article {
    min-height: 72px;
    padding: 10px 16px;
    text-align: center;
  }

  .architecture-transition-model h3 {
    margin-bottom: 5px;
    font-size: 10px;
  }

  .architecture-transition-model p {
    font-size: 11px;
    line-height: 1.25;
  }

  .architecture-transition-arrow {
    height: 22px;
    font-size: 21px;
    line-height: 20px;
    transform: rotate(90deg);
  }

  .architecture-handoff {
    min-height: 225px;
    display: block;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .architecture-handoff::before {
    content: "FROM ARCHITECTURE TO CONCRETE SYSTEMS";
    display: block;
    margin-bottom: 12px;
    color: var(--arch-blue);
    font-size: 9px;
    font-weight: 650;
    line-height: 1.2;
    letter-spacing: .19em;
  }

  .architecture-handoff h2 {
    margin-bottom: 12px;
    font-size: 22px;
  }

  .architecture-handoff-desktop-title,
  .architecture-handoff-desktop-copy {
    display: none;
  }

  .architecture-handoff-mobile-title,
  .architecture-handoff-mobile-copy {
    display: inline;
  }

  .architecture-handoff-mobile-copy {
    display: block;
  }

  .architecture-handoff > p {
    margin-bottom: 16px;
    font-size: 13px;
    line-height: 1.42;
  }

  .architecture-page .cta--primary {
    min-width: 174px;
    min-height: 48px;
    padding: 0 18px;
    font-size: 14px;
  }
}

/* Wide-screen integration — preserve the 1440px composition and continue the accepted site surface. */
@media (min-width: 1441px) {
  .architecture-page {
    overflow: visible;
  }

  .architecture-page::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: .22;
    background-image:
      linear-gradient(rgba(71, 130, 166, .10) 1px, transparent 1px),
      linear-gradient(90deg, rgba(71, 130, 166, .10) 1px, transparent 1px);
    background-size: 110px 110px;
    mask-image: linear-gradient(to bottom, transparent 1%, #000 7%, #000 96%, transparent 100%);
  }

  .architecture-section {
    max-width: 1440px;
  }

  .architecture-section::after {
    content: "";
    position: absolute;
    right: 50%;
    bottom: -1px;
    left: 50%;
    z-index: 5;
    height: 1px;
    margin-right: -50vw;
    margin-left: -50vw;
    background: var(--arch-line);
    pointer-events: none;
  }

  .architecture-handoff::after {
    display: none;
  }
}