:root {
  --ink: #f4f4f1;
  --muted: #b7b7b2;
  --dim: #7a7a76;
  --black: #050505;
  --panel: #0d0d0d;
  --line: #2a2a28;
  --paper: #f0efe9;
  --paper-muted: #d9d8d2;
  --accent: #b7d7c5;
  --max: 1200px;
  --pad: clamp(22px, 4vw, 52px);
  --display: "Arial Black", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --body: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--black);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input,
select,
textarea {
  font-family: var(--body);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

[hidden] {
  display: none !important;
}

.section-shell {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 10px 15px;
  background: var(--paper);
  color: #111;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: relative;
  z-index: 30;
  width: min(100%, var(--max));
  min-height: 92px;
  margin-inline: auto;
  padding: 22px var(--pad);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
}

.brand-script {
  display: inline-block;
  font-family: "Snell Roundhand", "Brush Script MT", cursive;
  font-size: 36px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.12em;
  transform: rotate(-8deg);
}

.brand-name {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.site-nav {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 36px);
  color: #d7d7d2;
  font-size: 14px;
}

.site-nav a,
.language-toggle,
.menu-toggle {
  transition: color 160ms ease, opacity 160ms ease;
}

.site-nav a:hover,
.language-toggle:hover,
.menu-toggle:hover {
  color: #fff;
}

.language-toggle,
.menu-toggle {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.language-toggle {
  justify-self: end;
  padding: 5px 0;
  color: #d7d7d2;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.menu-toggle {
  display: none;
}

.hero {
  min-height: 630px;
  padding-top: clamp(80px, 11vw, 150px);
  padding-bottom: clamp(120px, 15vw, 210px);
  display: grid;
  place-items: center;
}

.hero-copy {
  max-width: 850px;
  text-align: center;
}

.eyebrow {
  color: #deded9;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.48em;
  text-transform: uppercase;
}

.eyebrow.spaced {
  margin-bottom: 14px;
}

.hero h1 {
  max-width: 820px;
  margin: 24px auto 25px;
  font-family: var(--display);
  font-size: clamp(48px, 6.4vw, 82px);
  font-weight: 900;
  letter-spacing: -0.065em;
  line-height: 0.98;
  text-wrap: balance;
}

.hero h1 em {
  display: inline;
  color: var(--ink);
  font-style: normal;
}

.hero-lead {
  max-width: 760px;
  margin-inline: auto;
  color: #d2d2cd;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.5;
  text-wrap: balance;
}

.hero-link,
.resource-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 27px;
  padding: 3px 0;
  border: 0;
  border-bottom: 1px solid transparent;
  background: transparent;
  color: #fff;
  cursor: pointer;
  font-size: 15px;
  font-weight: 650;
  line-height: 1.3;
  transition: border-color 160ms ease, transform 160ms ease;
}

.hero-link:hover,
.resource-link:hover {
  border-color: currentColor;
  transform: translateY(-1px);
}

.center-heading {
  max-width: 880px;
  margin-inline: auto;
  text-align: center;
}

.center-heading h2,
.footer-statement h2 {
  font-family: var(--display);
  font-size: clamp(42px, 5.3vw, 68px);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1;
  text-wrap: balance;
}

.center-heading > p:last-child {
  max-width: 680px;
  margin: 17px auto 0;
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 20px);
  line-height: 1.45;
}

.resources {
  padding-bottom: clamp(140px, 16vw, 220px);
}

.resource-grid {
  margin-top: clamp(72px, 8vw, 110px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(78px, 8vw, 120px) clamp(26px, 3.2vw, 46px);
}

.resource-card {
  min-width: 0;
}

.resource-visual {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 1.58;
  border: 1px solid #1d1d1c;
}

.visual-os {
  padding: clamp(26px, 4vw, 58px);
  display: grid;
  place-items: center;
  background: var(--paper);
  color: #070707;
}

.os-panel {
  width: min(78%, 390px);
  padding: clamp(22px, 3vw, 38px);
  border: 2px solid #050505;
  background: #050505;
  color: white;
}

.os-panel span,
.os-panel small,
.workflow-title span,
.advisory-book span,
.advisory-book small {
  display: block;
  font-size: clamp(8px, 0.9vw, 11px);
  letter-spacing: 0.25em;
}

.os-panel strong {
  display: block;
  margin: 12px 0 18px;
  font-family: var(--display);
  font-size: clamp(30px, 4vw, 56px);
  letter-spacing: -0.07em;
  line-height: 0.82;
}

.os-stamp {
  position: absolute;
  right: 22px;
  bottom: 18px;
  font-size: clamp(8px, 0.8vw, 10px);
  font-weight: 700;
  letter-spacing: 0.16em;
}

.visual-enterprise {
  padding: clamp(27px, 3.8vw, 52px);
  background: #e6e7e3;
  color: #0a0a0a;
}

.workflow-title strong {
  display: block;
  margin-top: 15px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(28px, 3.7vw, 51px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.95;
}

.workflow-map {
  position: absolute;
  right: clamp(24px, 4vw, 52px);
  bottom: clamp(28px, 4vw, 50px);
  left: clamp(24px, 4vw, 52px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
}

.workflow-map span {
  display: grid;
  place-items: center;
  min-width: 64px;
  padding: 9px 10px;
  border: 1px solid #111;
  font-size: clamp(7px, 0.72vw, 9px);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.workflow-map i {
  flex: 1;
  height: 1px;
  background: #111;
}

.workflow-chip {
  position: absolute;
  top: 32px;
  right: 32px;
  padding: 6px 9px;
  border: 1px solid #111;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.visual-engine {
  display: grid;
  place-items: center;
  background: #0b0b0b;
}

.engine-ring {
  position: absolute;
  border: 1px solid #7b7b76;
  border-radius: 50%;
}

.ring-one {
  width: 68%;
  aspect-ratio: 1;
}

.ring-two {
  width: 46%;
  aspect-ratio: 1;
  border-color: #bcbcb6;
}

.ring-three {
  width: 23%;
  aspect-ratio: 1;
  border-color: #fff;
}

.engine-core {
  position: relative;
  z-index: 2;
  font-family: var(--display);
  font-size: clamp(14px, 2vw, 24px);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.engine-label {
  position: absolute;
  padding: 5px 8px;
  background: var(--black);
  color: #d0d0ca;
  font-size: clamp(7px, 0.8vw, 10px);
  letter-spacing: 0.18em;
}

.label-signal {
  top: 17%;
  left: 15%;
}

.label-assets {
  top: 24%;
  right: 12%;
}

.label-proof {
  right: 18%;
  bottom: 14%;
}

.visual-advisory {
  padding: clamp(28px, 4vw, 54px);
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #07100c;
}

.advisory-book {
  width: min(48%, 245px);
  aspect-ratio: 0.72;
  padding: clamp(18px, 2.4vw, 31px);
  border: 1px solid #050505;
  background: #090909;
  color: white;
  box-shadow: 20px 18px 0 #8cae9b;
}

.advisory-book strong {
  display: block;
  margin: 20px 0;
  font-family: var(--display);
  font-size: clamp(21px, 2.7vw, 38px);
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.visual-advisory > p {
  position: absolute;
  right: 22px;
  bottom: 16px;
  font-size: clamp(7px, 0.8vw, 10px);
  font-weight: 700;
  letter-spacing: 0.12em;
}

.resource-copy {
  padding-top: 20px;
}

.resource-copy h3 {
  font-family: var(--display);
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.resource-copy p {
  margin-top: 10px;
  color: #d0d0ca;
  font-size: 17px;
  line-height: 1.52;
}

.resource-copy p strong {
  color: #fff;
  font-weight: 700;
}

.resource-copy .resource-link {
  margin-top: 19px;
}

.system-section {
  padding-bottom: clamp(150px, 17vw, 230px);
  scroll-margin-top: 40px;
}

.system-layout {
  margin-top: clamp(65px, 8vw, 110px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(35px, 6vw, 90px);
  align-items: stretch;
}

.system-stages {
  border-top: 1px solid var(--line);
}

.system-stage {
  width: 100%;
  padding: 24px 0;
  display: grid;
  grid-template-columns: 38px 1fr auto;
  gap: 16px;
  align-items: start;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: #999994;
  text-align: left;
  cursor: pointer;
  transition: color 170ms ease, padding 170ms ease;
}

.system-stage:hover,
.system-stage.is-active {
  padding-left: 8px;
  color: #fff;
}

.stage-number {
  padding-top: 4px;
  font-size: 10px;
  letter-spacing: 0.12em;
}

.stage-copy {
  display: grid;
  gap: 4px;
}

.stage-copy strong {
  color: inherit;
  font-size: 19px;
}

.stage-copy > span:last-child {
  color: #969691;
  font-size: 13px;
}

.system-monitor {
  min-height: 485px;
  padding: clamp(26px, 4vw, 52px);
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  background: var(--paper);
  color: #0b0b0b;
}

.monitor-topline,
.monitor-output {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.monitor-status {
  display: flex;
  align-items: center;
  gap: 6px;
}

.monitor-status i,
.privacy-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4d7a65;
}

.monitor-main {
  align-self: center;
  max-width: 510px;
}

.monitor-kicker {
  margin-bottom: 12px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.monitor-main h3 {
  font-family: var(--display);
  font-size: clamp(35px, 4.3vw, 58px);
  letter-spacing: -0.06em;
  line-height: 0.96;
}

.monitor-main > p:last-child {
  margin-top: 17px;
  max-width: 470px;
  color: #454540;
  font-size: 16px;
}

.monitor-flow {
  display: flex;
  align-items: center;
  margin-bottom: 30px;
}

.monitor-flow span {
  color: #898984;
  font-size: 9px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.monitor-flow span.is-active {
  color: #0b0b0b;
}

.monitor-flow i {
  flex: 1;
  height: 1px;
  margin-inline: 8px;
  background: #b9b8b2;
}

.monitor-output {
  padding-top: 18px;
  border-top: 1px solid #c4c3bc;
  align-items: end;
}

.monitor-output strong {
  max-width: 55%;
  font-size: 13px;
  letter-spacing: 0;
  text-align: right;
}

.videos-section,
.articles-section {
  padding-bottom: clamp(150px, 17vw, 230px);
  scroll-margin-top: 40px;
}

.video-grid {
  margin-top: clamp(70px, 8vw, 105px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 42px);
  align-items: start;
}

.video-card {
  min-width: 0;
}

.video-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 9 / 16;
  border: 1px solid #252523;
  background: #0c0c0c;
}

.video-frame video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #0c0c0c;
}

.video-meta {
  margin-top: 18px;
  color: #84847f;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.video-card h3 {
  margin-top: 10px;
  font-family: var(--display);
  font-size: clamp(22px, 2.35vw, 30px);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.08;
}

.video-card > p:last-child {
  margin-top: 11px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.article-list {
  max-width: 1080px;
  margin: clamp(70px, 8vw, 105px) auto 0;
  border-top: 1px solid var(--line);
}

.article-row {
  border-bottom: 1px solid var(--line);
}

.article-row > a {
  padding: 30px 0;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) minmax(185px, 0.34fr);
  gap: 22px;
  align-items: center;
  transition: padding 170ms ease, background 170ms ease;
}

.article-row > a:hover {
  padding-right: 12px;
  padding-left: 12px;
  background: #0b0b0b;
}

.article-index {
  color: #6f6f6b;
  font-size: 10px;
  letter-spacing: 0.14em;
}

.article-copy {
  display: grid;
  gap: 8px;
}

.article-copy strong {
  font-family: var(--display);
  font-size: clamp(23px, 2.7vw, 35px);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.08;
}

.article-copy small {
  max-width: 650px;
  color: #979792;
  font-size: 14px;
  line-height: 1.5;
}

.article-action {
  display: grid;
  justify-items: end;
  gap: 10px;
  color: #777772;
  text-align: right;
}

.article-action small {
  font-size: 9px;
  letter-spacing: 0.08em;
}

.article-action b {
  color: #fff;
  font-size: 13px;
}

.notes-section {
  padding-bottom: clamp(150px, 17vw, 230px);
  scroll-margin-top: 40px;
}

.notes-list {
  max-width: 1040px;
  margin: clamp(70px, 8vw, 105px) auto 0;
  border-top: 1px solid var(--line);
}

.notes-list details {
  border-bottom: 1px solid var(--line);
}

.notes-list summary {
  padding: 27px 0;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 20px;
  align-items: center;
  cursor: pointer;
  list-style: none;
}

.notes-list summary::-webkit-details-marker {
  display: none;
}

.note-index {
  color: var(--dim);
  font-size: 10px;
  letter-spacing: 0.15em;
}

.note-title {
  display: grid;
  gap: 6px;
}

.note-title strong {
  font-family: var(--display);
  font-size: clamp(21px, 2.4vw, 30px);
  letter-spacing: -0.045em;
  line-height: 1.1;
}

.note-title small {
  color: #8f8f8a;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.notes-list summary > span:last-child {
  font-size: 28px;
  font-weight: 300;
  transition: transform 170ms ease;
}

.notes-list details[open] summary > span:last-child {
  transform: rotate(45deg);
}

.notes-list details > p {
  max-width: 760px;
  margin: -3px 42px 30px 64px;
  color: var(--muted);
  font-size: 16px;
}

.about-section {
  padding-bottom: clamp(150px, 17vw, 230px);
  scroll-margin-top: 40px;
}

.about-grid {
  margin-top: clamp(70px, 8vw, 105px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  gap: clamp(42px, 7vw, 100px);
  align-items: center;
}

.portrait {
  min-width: 0;
}

.portrait img {
  width: 100%;
  height: auto;
  filter: none;
}

.portrait figcaption {
  padding-top: 13px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #9d9d98;
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.about-copy h3 {
  font-family: var(--display);
  font-size: clamp(38px, 4.7vw, 62px);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1;
}

.about-copy > p {
  margin-top: 22px;
  color: #cecec9;
  font-size: 17px;
}

.about-copy blockquote {
  margin-top: 28px;
  padding-left: 20px;
  border-left: 1px solid #777772;
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.4;
}

.about-copy .resource-link {
  margin-top: 28px;
}

.diagnostic-section {
  padding: clamp(135px, 15vw, 205px) 0;
  border-top: 1px solid #1c1c1b;
  background: #090909;
  scroll-margin-top: 20px;
}

.diagnostic-panel {
  max-width: 920px;
  margin: clamp(68px, 7vw, 96px) auto 0;
  padding: clamp(28px, 5vw, 66px);
  background: var(--paper);
  color: #111;
}

#diagnostic-form {
  display: grid;
  gap: 23px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

#diagnostic-form > label,
.field-row label {
  display: grid;
  gap: 8px;
  color: #222;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid #777771;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: #111;
  font-size: 16px;
  text-transform: none;
}

input,
select {
  height: 48px;
}

textarea {
  min-height: 112px;
  padding: 12px 0;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #050505;
  box-shadow: 0 1px 0 #050505;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 11px;
  color: #222;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid #c1c0ba;
  border-left: 1px solid #c1c0ba;
}

.choice-grid label {
  min-height: 62px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-right: 1px solid #c1c0ba;
  border-bottom: 1px solid #c1c0ba;
  cursor: pointer;
  font-size: 14px;
}

.choice-grid input {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  accent-color: #050505;
}

.form-submit {
  min-height: 54px;
  padding: 15px 19px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  border: 1px solid #050505;
  background: #050505;
  color: #fff;
  cursor: pointer;
  font-weight: 750;
  transition: background 160ms ease, color 160ms ease;
}

.form-submit:hover {
  background: transparent;
  color: #050505;
}

.privacy-note {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #656560;
  font-size: 11px;
}

.diagnostic-result {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  outline: 0;
}

.result-label {
  margin-bottom: 16px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.2em;
}

.diagnostic-result h3 {
  max-width: 700px;
  font-family: var(--display);
  font-size: clamp(38px, 5vw, 64px);
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.diagnostic-result > p:not(.result-label) {
  max-width: 690px;
  margin-top: 20px;
  color: #4b4b46;
  font-size: 18px;
}

.result-actions {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.result-actions .resource-link {
  margin-top: 0;
  color: #111;
}

.site-footer {
  padding: clamp(125px, 15vw, 200px) 0 35px;
}

.footer-statement {
  max-width: 820px;
  margin-inline: auto;
  text-align: center;
}

.footer-statement .eyebrow {
  margin-bottom: 22px;
}

.footer-statement .hero-link {
  margin-top: 30px;
}

.footer-meta {
  margin-top: clamp(110px, 14vw, 190px);
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: #777772;
  font-size: 9px;
  letter-spacing: 0.11em;
}

.noscript-notice {
  position: fixed;
  z-index: 80;
  right: 12px;
  bottom: 12px;
  max-width: 420px;
  padding: 13px 16px;
  border: 1px solid #777;
  background: #fff;
  color: #111;
  font-size: 13px;
}

.noscript-notice a {
  text-decoration: underline;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.pressable:active {
  transform: translateY(1px);
}

:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 5px;
}

.diagnostic-panel :focus-visible,
.visual-os :focus-visible,
.visual-enterprise :focus-visible,
.visual-advisory :focus-visible {
  outline-color: #050505;
}

[data-lang="en"] .lang-zh,
[data-lang="zh"] .lang-en {
  display: none !important;
}

@media (max-width: 940px) {
  .site-header {
    grid-template-columns: auto 1fr auto auto;
  }

  .site-nav {
    gap: 18px;
  }

  .resource-grid {
    gap: 72px 24px;
  }

  .video-grid {
    gap: 24px;
  }

  .article-row > a {
    grid-template-columns: 35px minmax(0, 1fr);
  }

  .article-action {
    grid-column: 2;
    justify-items: start;
    text-align: left;
  }

  .workflow-map span {
    min-width: 52px;
    padding-inline: 6px;
  }

  .system-layout,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .system-monitor {
    min-height: 450px;
  }

  .about-grid {
    max-width: 780px;
    margin-inline: auto;
  }

  .portrait {
    max-width: 640px;
    margin-inline: auto;
  }
}

@media (max-width: 760px) {
  :root {
    --pad: 22px;
  }

  body {
    font-size: 16px;
  }

  .site-header {
    min-height: 74px;
    padding-top: 17px;
    padding-bottom: 17px;
    grid-template-columns: auto 1fr auto auto;
    gap: 15px;
  }

  .brand-script {
    font-size: 31px;
  }

  .menu-toggle {
    display: block;
    justify-self: end;
    padding: 5px 0;
    color: #d7d7d2;
    font-size: 13px;
  }

  .site-nav {
    position: absolute;
    top: 67px;
    right: 22px;
    left: 22px;
    padding: 25px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    border: 1px solid #30302e;
    background: #090909;
  }

  .site-header.is-open .site-nav {
    display: flex;
  }

  .site-nav a {
    padding: 12px 0;
    border-bottom: 1px solid #242422;
    font-size: 16px;
  }

  .site-nav a:last-child {
    border-bottom: 0;
  }

  .hero {
    min-height: auto;
    padding-top: 84px;
    padding-bottom: 150px;
  }

  .hero h1 {
    margin-top: 20px;
    font-size: clamp(43px, 12.8vw, 58px);
    line-height: 0.98;
  }

  .hero-lead {
    font-size: 17px;
  }

  .eyebrow {
    font-size: 10px;
    letter-spacing: 0.38em;
  }

  .center-heading h2,
  .footer-statement h2 {
    font-size: clamp(39px, 11.2vw, 52px);
  }

  .resource-grid {
    grid-template-columns: 1fr;
    gap: 78px;
  }

  .video-grid {
    grid-template-columns: 1fr;
    gap: 78px;
  }

  .video-card {
    max-width: 480px;
    margin-inline: auto;
  }

  .resource-visual {
    aspect-ratio: 1.42;
  }

  .workflow-map {
    flex-wrap: wrap;
  }

  .workflow-map i {
    min-width: 15px;
  }

  .resource-copy h3 {
    font-size: 27px;
  }

  .resource-copy p {
    font-size: 16px;
  }

  .system-layout {
    gap: 42px;
  }

  .system-monitor {
    min-height: 420px;
  }

  .monitor-flow span {
    font-size: 7px;
  }

  .notes-list summary {
    grid-template-columns: 28px 1fr auto;
    gap: 12px;
  }

  .article-row > a {
    padding: 26px 0;
    grid-template-columns: 25px minmax(0, 1fr);
    gap: 13px;
  }

  .article-row > a:hover {
    padding-right: 0;
    padding-left: 0;
    background: transparent;
  }

  .article-copy strong {
    font-size: 23px;
  }

  .notes-list details > p {
    margin-left: 40px;
    margin-right: 22px;
  }

  .note-title strong {
    font-size: 21px;
  }

  .portrait figcaption,
  .footer-meta {
    flex-direction: column;
    gap: 5px;
  }

  .field-row,
  .choice-grid {
    grid-template-columns: 1fr;
  }

  .diagnostic-panel {
    padding: 27px 20px;
  }

  .diagnostic-result {
    min-height: 380px;
  }

  .footer-meta {
    align-items: center;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .language-toggle,
  .menu-toggle {
    font-size: 12px;
  }

  .resource-visual {
    aspect-ratio: 1.24;
  }

  .os-panel {
    width: 84%;
  }

  .workflow-chip {
    top: 20px;
    right: 20px;
  }

  .workflow-map {
    right: 20px;
    bottom: 22px;
    left: 20px;
  }

  .advisory-book {
    width: 54%;
    box-shadow: 13px 12px 0 #8cae9b;
  }

  .system-stage {
    grid-template-columns: 30px 1fr auto;
    gap: 10px;
  }

  .monitor-flow i {
    margin-inline: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}