:root {
  --ink: #111214;
  --muted: #6d7178;
  --line: rgba(17, 18, 20, 0.12);
  --paper: #f6f3ed;
  --warm: #c7a46c;
  --warm-dark: #8b6a38;
  --champagne: #ead8ad;
  --deep: #171512;
  --blue: #2f5d76;
  --green: #2c5a4c;
  --white: #ffffff;
  --shadow: 0 26px 80px rgba(17, 18, 20, 0.16);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(246, 243, 237, 0.92)),
    var(--paper);
  font-family: "Inter", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: 100%;
  height: 3px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--warm), var(--blue), var(--green));
  box-shadow: 0 0 24px rgba(199, 164, 108, 0.4);
  transform: scaleX(0);
  transform-origin: left;
}

.cursor-aura {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  width: 420px;
  height: 420px;
  pointer-events: none;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(234, 216, 173, 0.22), rgba(47, 93, 118, 0.1) 38%, transparent 68%);
  opacity: 0;
  transform: translate3d(calc(var(--cursor-x, 50vw) - 210px), calc(var(--cursor-y, 50vh) - 210px), 0);
  transition: opacity 260ms ease, transform 120ms ease-out;
}

body.has-pointer .cursor-aura {
  opacity: 1;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(17, 18, 20, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 18, 20, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.46), transparent 78%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background:
    radial-gradient(circle at 18% 20%, rgba(199, 164, 108, 0.2), transparent 28%),
    radial-gradient(circle at 82% 10%, rgba(47, 93, 118, 0.18), transparent 30%),
    linear-gradient(180deg, #fbfaf6, #f4efe4);
}

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

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

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: grid;
  width: min(1120px, calc(100% - 32px));
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  padding: 10px 10px 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 16px 48px rgba(17, 18, 20, 0.08);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
  transition: box-shadow 200ms ease, background 200ms ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 54px rgba(17, 18, 20, 0.12);
}

.brand,
.nav-links,
.hero-actions,
.contact-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--ink);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.nav-links {
  gap: 4px;
  color: rgba(17, 18, 20, 0.7);
  font-size: 14px;
  font-weight: 600;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(17, 18, 20, 0.06);
}

.header-action {
  justify-self: end;
  padding: 11px 18px;
  border-radius: 999px;
  color: var(--white);
  background: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.section {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  scroll-margin-top: 118px;
}

.hero {
  position: relative;
  display: grid;
  min-height: auto;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 455px);
  align-items: center;
  gap: 54px;
  padding: 128px 0 40px;
}

.hero::before {
  position: absolute;
  inset: 88px -5vw auto;
  z-index: -1;
  height: min(640px, 74vh);
  border-radius: 8px;
  content: "";
  background:
    linear-gradient(90deg, rgba(246, 243, 237, 0.92), rgba(246, 243, 237, 0.56) 42%, rgba(17, 18, 20, 0.28)),
    url("./assets/ai-brand-bg.png") center / cover;
  opacity: 0.42;
  filter: saturate(0.92);
  transform: translateZ(0);
  animation: auraDrift 16s ease-in-out infinite alternate;
}

.hero-copy {
  max-width: 660px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--warm-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 690px;
  margin-bottom: 24px;
  font-size: clamp(42px, 6.4vw, 74px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4.4vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 620px;
  margin-bottom: 32px;
  color: rgba(17, 18, 20, 0.72);
  font-size: 19px;
  line-height: 1.8;
}

.hero-actions,
.contact-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  position: relative;
  overflow: hidden;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid rgba(17, 18, 20, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.64);
  font-weight: 800;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(110deg, transparent 0 35%, rgba(255, 255, 255, 0.42) 48%, transparent 62% 100%);
  opacity: 0;
  transform: translateX(-120%);
}

.button:hover {
  border-color: rgba(17, 18, 20, 0.42);
  transform: translateY(-2px);
}

.button:hover::after {
  opacity: 1;
  transform: translateX(120%);
  transition: transform 760ms ease, opacity 220ms ease;
}

.button.primary {
  border-color: var(--ink);
  color: var(--white);
  background: var(--ink);
}

.button.light {
  border-color: rgba(255, 255, 255, 0.44);
  color: var(--white);
  background: rgba(255, 255, 255, 0.14);
}

.hero-portrait {
  position: relative;
  overflow: hidden;
  height: 520px;
  min-height: 0;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(246, 243, 237, 0.72), rgba(234, 216, 173, 0.2)),
    #ebe4d7;
  box-shadow: var(--shadow);
}

.hero-portrait::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  height: auto;
  content: "";
  background:
    linear-gradient(180deg, rgba(246, 243, 237, 0.1), rgba(17, 18, 20, 0.48)),
    linear-gradient(90deg, rgba(234, 216, 173, 0.22), rgba(255, 255, 255, 0) 48%);
  mix-blend-mode: multiply;
}

.hero-portrait::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  background: radial-gradient(circle at 32% 18%, rgba(255, 244, 220, 0.42), transparent 34%);
  mix-blend-mode: screen;
}

.hero-portrait img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: 50% 18%;
  filter: saturate(0.86) sepia(0.08) contrast(0.98);
}

.portrait-panel {
  position: absolute;
  right: 22px;
  bottom: 22px;
  left: 22px;
  z-index: 2;
  display: grid;
  gap: 7px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.36);
  color: var(--white);
}

.portrait-panel span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.portrait-panel strong {
  font-size: 24px;
}

.metric-strip {
  grid-column: 1 / -1;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  width: min(920px, calc(100% - 70px));
  margin: -24px auto 0;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 22px 70px rgba(17, 18, 20, 0.09);
  backdrop-filter: blur(18px);
}

.metric-strip div {
  padding: 22px 26px;
  border-right: 1px solid var(--line);
}

.metric-strip div:last-child {
  border-right: 0;
}

.metric-strip strong {
  display: block;
  margin-bottom: 6px;
  font-size: 30px;
  line-height: 1;
}

.metric-strip span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.split,
.proof {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 68px;
  padding: 114px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  position: sticky;
  top: 120px;
  align-self: start;
}

.section-heading.centered {
  position: static;
  max-width: 780px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-index {
  display: block;
  margin-bottom: 18px;
  color: rgba(17, 18, 20, 0.12);
  font-size: clamp(58px, 8vw, 104px);
  font-weight: 800;
  line-height: 0.82;
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline article,
.service-card,
.proof-matrix article,
.credential-card,
.audience-card,
.method-steps article {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.58);
  box-shadow: 0 12px 38px rgba(17, 18, 20, 0.045);
}

.timeline article::before,
.service-card::before,
.credential-card::before,
.audience-card::before,
.method-steps article::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.55), transparent 36%, rgba(199, 164, 108, 0.12));
  opacity: 0;
  transition: opacity 240ms ease;
}

.timeline article:hover::before,
.service-card:hover::before,
.credential-card:hover::before,
.audience-card:hover::before,
.method-steps article:hover::before {
  opacity: 1;
}

.credentials,
.audience,
.result-band,
.channels {
  padding: 114px 0;
  border-top: 1px solid var(--line);
}

.credential-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.credential-card {
  min-height: 330px;
  padding: 30px;
  color: var(--white);
  background:
    linear-gradient(145deg, rgba(17, 18, 20, 0.92), rgba(47, 93, 118, 0.68)),
    var(--ink);
}

.credential-card:nth-child(2) {
  background:
    linear-gradient(145deg, rgba(22, 21, 18, 0.94), rgba(139, 106, 56, 0.72)),
    var(--deep);
}

.credential-card:nth-child(3) {
  background:
    linear-gradient(145deg, rgba(21, 35, 31, 0.94), rgba(44, 90, 76, 0.72)),
    var(--green);
}

.credential-card span,
.card-kicker {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--champagne);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.credential-card h3,
.audience-card h3,
.method-steps h3 {
  position: relative;
}

.credential-card p {
  position: relative;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  line-height: 1.82;
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.audience-card {
  min-height: 410px;
  padding: 34px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.48)),
    rgba(255, 255, 255, 0.58);
}

.card-kicker {
  margin-bottom: 24px;
  color: var(--blue);
}

.audience-card p {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.audience-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.audience-card li {
  position: relative;
  padding: 14px 0 14px 24px;
  border-top: 1px solid var(--line);
  color: rgba(17, 18, 20, 0.76);
  font-weight: 700;
  line-height: 1.6;
}

.audience-card li::before {
  position: absolute;
  top: 22px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  content: "";
  background: var(--warm);
  box-shadow: 0 0 0 6px rgba(199, 164, 108, 0.14);
}

.method {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 58px;
  align-items: start;
  padding: 114px 0;
  border-top: 1px solid var(--line);
}

.method-copy {
  position: sticky;
  top: 120px;
}

.method-copy p {
  max-width: 520px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
}

.method-steps {
  display: grid;
  gap: 12px;
  counter-reset: step;
}

.method-steps article {
  display: grid;
  grid-template-columns: 64px 1fr;
  column-gap: 22px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.64);
}

.method-steps span {
  grid-row: span 2;
  display: inline-grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 50%;
  color: var(--white);
  background: var(--ink);
  font-weight: 800;
}

.method-steps h3 {
  margin-bottom: 8px;
}

.method-steps p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.76;
}

.service-grid.expanded {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-grid.expanded .service-card {
  min-height: 340px;
}

.timeline article {
  padding: 30px;
}

.timeline span,
.service-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.timeline p,
.service-card p,
.proof-copy p,
.contact-inner p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.services {
  padding: 114px 0;
  border-top: 1px solid var(--line);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.service-card {
  min-height: 290px;
  padding: 26px;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.service-card:hover {
  box-shadow: 0 24px 70px rgba(17, 18, 20, 0.12);
  transform: translateY(-5px);
}

.credential-card,
.audience-card,
.method-steps article {
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.credential-card:hover,
.audience-card:hover,
.method-steps article:hover {
  border-color: rgba(199, 164, 108, 0.34);
  box-shadow: 0 28px 80px rgba(17, 18, 20, 0.12);
  transform: translateY(-5px);
}

.result-band {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 38px;
  align-items: stretch;
}

.result-copy {
  display: grid;
  align-content: end;
  min-height: 340px;
  padding: 34px;
  border-radius: var(--radius);
  color: var(--white);
  background:
    linear-gradient(145deg, rgba(17, 18, 20, 0.88), rgba(47, 93, 118, 0.62)),
    url("./assets/ai-brand-bg.png") center / cover;
  box-shadow: var(--shadow);
}

.result-copy .eyebrow {
  color: var(--champagne);
}

.result-copy h2 {
  font-size: clamp(28px, 3vw, 44px);
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.result-item,
.channel-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(17, 18, 20, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 18px 58px rgba(17, 18, 20, 0.06);
  transition: transform 240ms ease, box-shadow 240ms ease, border-color 240ms ease;
}

.result-item {
  display: grid;
  align-content: space-between;
  min-height: 160px;
  padding: 28px;
}

.result-item::after,
.channel-card::after {
  position: absolute;
  inset: -1px;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.64), transparent 34%),
    radial-gradient(circle at var(--card-x, 50%) var(--card-y, 50%), rgba(234, 216, 173, 0.24), transparent 34%);
  opacity: 0;
  transition: opacity 220ms ease;
}

.result-item:hover,
.channel-card:hover {
  border-color: rgba(199, 164, 108, 0.38);
  box-shadow: 0 30px 90px rgba(17, 18, 20, 0.13);
  transform: translateY(-6px);
}

.result-item:hover::after,
.channel-card:hover::after {
  opacity: 1;
}

.result-item strong {
  position: relative;
  z-index: 1;
  font-size: clamp(38px, 5vw, 62px);
  line-height: 1;
}

.result-item span {
  position: relative;
  z-index: 1;
  color: var(--muted);
  font-weight: 800;
  line-height: 1.6;
}

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

.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.channel-card {
  min-height: 250px;
  padding: 28px;
}

.channel-card span {
  display: block;
  margin-bottom: 56px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.channel-card strong {
  position: relative;
  z-index: 1;
  display: block;
  margin-bottom: 14px;
  font-size: 28px;
}

.channel-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--muted);
  line-height: 1.78;
}

.proof {
  align-items: center;
}

.proof-copy p {
  max-width: 610px;
  margin: 24px 0 26px;
}

.proof-list {
  display: grid;
  gap: 10px;
}

.proof-list span {
  padding: 14px 0;
  border-top: 1px solid var(--line);
  color: rgba(17, 18, 20, 0.76);
  font-weight: 700;
}

.proof-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.proof-matrix article {
  min-height: 180px;
  padding: 26px;
  color: var(--white);
  background: var(--ink);
}

.proof-matrix article:nth-child(2) {
  background: var(--blue);
}

.proof-matrix article:nth-child(3) {
  background: var(--green);
}

.proof-matrix article:nth-child(4) {
  color: var(--ink);
  background: var(--warm);
}

.proof-matrix strong {
  display: block;
  margin-bottom: 54px;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.proof-matrix span {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.32;
}

.contact {
  width: 100%;
  padding: 0 20px 22px;
}

.contact-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 78px;
  border-radius: var(--radius);
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(17, 18, 20, 0.94), rgba(47, 93, 118, 0.78)),
    url("./assets/ai-brand-bg.png") center / cover,
    var(--ink);
}

.contact-inner h2 {
  max-width: 760px;
}

.contact-inner p {
  max-width: 700px;
  margin: 22px 0 30px;
  color: rgba(255, 255, 255, 0.76);
}

.footer {
  display: flex;
  width: min(1120px, calc(100% - 40px));
  justify-content: space-between;
  gap: 20px;
  margin: 0 auto;
  padding: 28px 0 42px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(26px) scale(0.985);
  transition: opacity 760ms ease, transform 760ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.credential-grid .reveal:nth-child(2),
.service-grid .reveal:nth-child(2),
.method-steps article:nth-child(2),
.audience-grid .reveal:nth-child(2) {
  transition-delay: 90ms;
}

.credential-grid .reveal:nth-child(3),
.service-grid .reveal:nth-child(3),
.method-steps article:nth-child(3) {
  transition-delay: 180ms;
}

.method-steps article:nth-child(4) {
  transition-delay: 270ms;
}

.method-steps article:nth-child(5) {
  transition-delay: 360ms;
}

.result-grid .reveal:nth-child(2),
.channel-grid .reveal:nth-child(2) {
  transition-delay: 90ms;
}

.result-grid .reveal:nth-child(3),
.channel-grid .reveal:nth-child(3) {
  transition-delay: 180ms;
}

.result-grid .reveal:nth-child(4) {
  transition-delay: 270ms;
}

@keyframes auraDrift {
  from {
    opacity: 0.34;
    transform: translate3d(-8px, 0, 0) scale(1);
  }

  to {
    opacity: 0.52;
    transform: translate3d(8px, -10px, 0) scale(1.02);
  }
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero,
  .split,
  .proof,
  .method,
  .result-band {
    grid-template-columns: 1fr;
  }

  .hero {
    display: grid;
    min-height: auto;
    gap: 18px;
    padding: 116px 0 76px;
  }

  .hero::before {
    inset: 76px -24px auto;
    height: 620px;
    opacity: 0.32;
  }

  .hero-copy,
  .hero-portrait {
    grid-area: 1 / 1;
  }

  .hero-copy {
    z-index: 2;
    align-self: end;
    max-width: none;
    padding: 36px;
    color: var(--white);
  }

  .hero-copy .eyebrow {
    color: rgba(255, 228, 174, 0.9);
  }

  .hero-copy h1 {
    max-width: 680px;
    color: var(--white);
    text-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  }

  .hero-copy .hero-lede {
    max-width: 620px;
    color: rgba(255, 255, 255, 0.82);
  }

  .hero-copy .button {
    border-color: rgba(255, 255, 255, 0.42);
    color: var(--white);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px);
  }

  .hero-copy .button.primary {
    border-color: var(--white);
    color: var(--ink);
    background: var(--white);
  }

  .hero-portrait,
  .hero-portrait img {
    min-height: 0;
  }

  .hero-portrait {
    height: 620px;
  }

  .hero-portrait img {
    height: 100%;
  }

  .hero-portrait::after {
    inset: 0;
    height: auto;
    background:
      linear-gradient(180deg, rgba(17, 18, 20, 0.08), rgba(17, 18, 20, 0.84)),
      linear-gradient(90deg, rgba(17, 18, 20, 0.72), rgba(17, 18, 20, 0.06) 68%);
  }

  .hero-portrait img {
    object-position: 68% 16%;
  }

  .portrait-panel {
    right: 36px;
    bottom: 36px;
    left: auto;
    width: min(280px, calc(100% - 72px));
    text-align: right;
  }

  .metric-strip {
    position: relative;
    right: auto;
    bottom: auto;
    left: auto;
    margin-top: 0;
  }

  .section-heading {
    position: static;
  }

  .method-copy {
    position: static;
  }

  .credential-grid,
  .service-grid,
  .service-grid.expanded,
  .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    padding: 8px 8px 8px 12px;
  }

  .brand span:last-child {
    max-width: 118px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .header-action {
    padding: 10px 14px;
  }

  .section {
    width: min(100% - 28px, 1120px);
  }

  .hero {
    min-height: auto;
    padding: 96px 0 72px;
  }

  .hero-lede {
    font-size: 17px;
    line-height: 1.7;
  }

  h1 {
    font-size: 38px;
    line-height: 1.12;
  }

  .hero-copy {
    padding: 24px;
  }

  .hero-copy h1 {
    max-width: 340px;
  }

  .hero-actions {
    gap: 10px;
  }

  .hero-copy .button {
    min-height: 44px;
    padding: 0 18px;
  }

  .hero-portrait,
  .hero-portrait img {
    min-height: 0;
  }

  .hero-portrait {
    height: 580px;
  }

  .hero-portrait img {
    object-position: 62% 16%;
  }

  .hero-portrait::after {
    background:
      linear-gradient(180deg, rgba(17, 18, 20, 0.04), rgba(17, 18, 20, 0.88)),
      linear-gradient(90deg, rgba(17, 18, 20, 0.66), rgba(17, 18, 20, 0.02) 78%);
  }

  .portrait-panel {
    display: none;
  }

  .credential-grid,
  .audience-grid,
  .result-grid,
  .service-grid,
  .service-grid.expanded,
  .channel-grid,
  .proof-matrix {
    grid-template-columns: 1fr;
  }

  .split,
  .credentials,
  .audience,
  .result-band,
  .method,
  .services,
  .channels,
  .proof {
    padding: 82px 0;
  }

  .timeline article,
  .credential-card,
  .audience-card,
  .result-copy,
  .result-item,
  .service-card,
  .method-steps article,
  .channel-card,
  .proof-matrix article {
    padding: 22px;
  }

  .credential-card,
  .audience-card,
  .result-copy,
  .channel-card,
  .service-grid.expanded .service-card {
    min-height: auto;
  }

  .method-steps article {
    grid-template-columns: 48px 1fr;
    column-gap: 16px;
  }

  .method-steps span {
    width: 44px;
    height: 44px;
  }

  .service-card {
    min-height: auto;
  }

  .proof-matrix article {
    min-height: 150px;
  }

  .proof-matrix strong {
    margin-bottom: 34px;
  }

  .contact {
    padding: 0 14px 16px;
  }

  .contact-inner {
    padding: 42px 22px;
  }

  .footer {
    width: calc(100% - 28px);
    flex-direction: column;
    padding-bottom: 30px;
  }
}

@media (max-width: 480px) {
  .metric-strip {
    grid-template-columns: 1fr;
  }

  .metric-strip div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metric-strip div:last-child {
    border-bottom: 0;
  }
}