:root {
  --paper: #f4f4ef;
  --paper-strong: #ecece5;
  --ink: #10110f;
  --ink-soft: #343630;
  --muted: #6e7168;
  --line: rgba(16, 17, 15, 0.16);
  --line-dark: rgba(255, 255, 255, 0.16);
  --lime: #c9ff21;
  --lime-strong: #b5eb0e;
  --white: #ffffff;
  --radius-sm: 12px;
  --radius-md: 24px;
  --radius-lg: 40px;
  --container: 1280px;
  --header-height: 92px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

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

h1,
h2,
h3 {
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

h1 {
  font-size: clamp(3.4rem, 5.6vw, 5.8rem);
  max-width: 950px;
}

h2 {
  font-size: clamp(2.6rem, 5.3vw, 5.2rem);
}

h3 {
  font-size: clamp(2.1rem, 4vw, 4rem);
}

::selection {
  background: var(--lime);
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid var(--lime-strong);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 3000;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-180%);
  transition: transform 180ms ease;
}

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

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.section {
  padding: clamp(96px, 11vw, 160px) 0;
}

.section-kicker,
.eyebrow,
.case-number {
  margin-bottom: 22px;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-kicker.light {
  color: var(--lime);
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 14px 24px;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.2;
  transition:
    transform 220ms var(--ease),
    background-color 220ms ease,
    color 220ms ease,
    border-color 220ms ease;
}

.button span {
  font-size: 1.2em;
  transition: transform 220ms var(--ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button:hover span {
  transform: translate(2px, -2px);
}

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

.button-dark:hover {
  background: var(--lime);
  color: var(--ink);
}

.button-neon {
  background: var(--lime);
  color: var(--ink);
}

.button-neon:hover {
  background: var(--ink);
  color: var(--lime);
}

.button-large {
  min-height: 60px;
  padding: 17px 30px;
  font-size: 1.04rem;
}

.text-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--ink);
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 600;
  transition: gap 220ms var(--ease);
}

.text-link:hover {
  gap: 16px;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition:
    background-color 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.site-header.is-scrolled,
.site-header.menu-active {
  border-color: var(--line);
  background: rgba(244, 244, 239, 0.94);
  box-shadow: 0 8px 30px rgba(16, 17, 15, 0.05);
  backdrop-filter: blur(16px);
}

.header-inner {
  display: grid;
  min-height: var(--header-height);
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 36px;
}

.brand img,
.footer-brand img {
  width: 164px;
  height: auto;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 3vw, 42px);
}

.desktop-nav a {
  position: relative;
  min-height: 44px;
  align-content: center;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 2px;
  background: var(--lime-strong);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms var(--ease);
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle,
.mobile-menu {
  display: none;
}

/* Hero */
.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: center;
  overflow: hidden;
  padding: calc(var(--header-height) + 48px) 0 60px;
}

.hero::before {
  position: absolute;
  top: 16%;
  right: -12%;
  width: 44vw;
  height: 44vw;
  border: 1px solid var(--line);
  border-radius: 50%;
  content: "";
}

.hero-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  color: transparent;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(8rem, 18vw, 18rem);
  font-weight: 700;
  letter-spacing: -0.08em;
  opacity: 0.055;
  pointer-events: none;
  transform: translate(-50%, -46%);
  white-space: nowrap;
  -webkit-text-stroke: 1px var(--ink);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(360px, 0.7fr);
  align-items: center;
  gap: clamp(42px, 6vw, 88px);
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime-strong);
  box-shadow: 0 0 0 6px rgba(201, 255, 33, 0.16);
}

.hero h1 {
  margin-bottom: 30px;
}

.hero-lead {
  max-width: 760px;
  margin-bottom: 38px;
  font-size: clamp(1.08rem, 1.55vw, 1.35rem);
  line-height: 1.58;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.hero-support {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
}

.portrait-shell {
  position: relative;
  max-width: 500px;
  margin-left: auto;
  border: 1px solid var(--ink);
  border-radius: 240px 240px var(--radius-md) var(--radius-md);
  background: var(--ink);
  box-shadow: 20px 24px 0 var(--lime);
}

.portrait-shell::after {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 10px var(--paper);
  content: "";
  pointer-events: none;
}

.portrait-shell > img {
  width: 100%;
  height: min(64vh, 620px);
  min-height: 520px;
  border-radius: inherit;
  object-fit: cover;
  object-position: center;
}

.portrait-note {
  position: absolute;
  z-index: 3;
  display: flex;
  max-width: 250px;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 16px 10px 10px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 16px 40px rgba(16, 17, 15, 0.12);
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
}

.portrait-note span {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  font-size: 0.7rem;
}

.note-top {
  top: 25%;
  left: -23%;
}

.note-bottom {
  right: -12%;
  bottom: 15%;
}

/* Signal strip */
.signal-strip {
  position: relative;
  z-index: 4;
  overflow: hidden;
  border-block: 2px solid var(--ink);
  background: var(--lime);
  transform: rotate(-1deg) scale(1.01);
}

.signal-track {
  display: flex;
  width: max-content;
  align-items: center;
  gap: 30px;
  padding: 19px 0;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1rem, 1.7vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  animation: signal-scroll 30s linear infinite;
}

.signal-track i {
  font-style: normal;
}

@keyframes signal-scroll {
  to {
    transform: translateX(-50%);
  }
}

/* Symptoms */
.symptoms {
  background: var(--paper);
}

.symptoms-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(440px, 1.2fr);
  align-items: start;
  gap: clamp(60px, 10vw, 140px);
}

.sticky-intro {
  position: sticky;
  top: calc(var(--header-height) + 48px);
}

.sticky-intro h2 {
  margin-bottom: 30px;
  font-size: clamp(2.7rem, 4.7vw, 4.8rem);
}

.sticky-intro > p:last-child {
  max-width: 500px;
  color: var(--muted);
  font-size: 1.08rem;
}

.symptom-list {
  border-top: 1px solid var(--ink);
}

.symptom-list blockquote {
  position: relative;
  margin: 0;
  border-bottom: 1px solid var(--line);
  padding: 28px 54px 28px 0;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1.25rem, 2.2vw, 1.8rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.3;
  transition: padding-left 220ms var(--ease);
}

.symptom-list blockquote::after {
  position: absolute;
  top: 50%;
  right: 4px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  background: var(--paper-strong);
  color: var(--ink);
  content: "?";
  font-size: 0.85rem;
  transform: translateY(-50%);
}

.symptom-list blockquote:hover {
  padding-left: 12px;
}

.symptom-conclusion {
  margin-top: clamp(72px, 9vw, 120px);
  border-top: 1px solid var(--ink);
  padding-top: 32px;
}

.symptom-conclusion p {
  max-width: 1020px;
  margin: 0;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1.65rem, 3.2vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 1.18;
}

.symptom-conclusion strong {
  background: linear-gradient(transparent 62%, var(--lime) 62%);
}

/* Process */
.process {
  border-top: 1px solid var(--line);
  background: var(--white);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  align-items: end;
  gap: clamp(48px, 9vw, 130px);
  margin-bottom: clamp(68px, 9vw, 110px);
}

.section-heading h2 {
  max-width: 820px;
  margin-bottom: 0;
}

.section-heading > p {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 1.08rem;
}

.process-steps {
  display: grid;
  margin: 0;
  padding: 0;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
}

.process-steps li {
  position: relative;
  min-height: 340px;
  border-top: 1px solid var(--ink);
  border-right: 1px solid var(--line);
  padding: 26px 28px 34px;
}

.process-steps li:first-child {
  padding-left: 0;
}

.process-steps li:last-child {
  border-right: 0;
  padding-right: 0;
}

.process-steps li::before {
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--lime-strong);
  content: "";
}

.process-steps span {
  color: var(--muted);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
}

.process-steps h3 {
  margin: 96px 0 18px;
  font-size: clamp(1.55rem, 2.4vw, 2.25rem);
  line-height: 1.05;
}

.process-steps p {
  max-width: 260px;
  margin: 0;
  color: var(--muted);
}

/* Principle */
.principle {
  position: relative;
  overflow: hidden;
  padding: clamp(100px, 12vw, 170px) 0;
  background: var(--ink);
  color: #c6c8c1;
}

.principle::after {
  position: absolute;
  right: -12%;
  bottom: -60%;
  width: 55vw;
  height: 55vw;
  border: 1px solid rgba(201, 255, 33, 0.4);
  border-radius: 50%;
  content: "";
}

.principle-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr);
  align-items: start;
  gap: clamp(70px, 10vw, 160px);
}

.principle h2 {
  margin: 0;
  color: var(--white);
  font-size: clamp(4rem, 8.2vw, 8rem);
}

.principle h2 span {
  color: var(--lime);
}

.principle-lead {
  margin-bottom: 52px;
  color: var(--white);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1.45rem, 2.6vw, 2.25rem);
  letter-spacing: -0.035em;
  line-height: 1.28;
}

.principle-notes {
  display: grid;
  gap: 22px;
  border-top: 1px solid var(--line-dark);
  padding-top: 26px;
}

.principle-notes p {
  margin: 0;
}

.principle-notes span {
  color: var(--lime);
  font-weight: 700;
}

/* Cases */
.cases {
  background: var(--paper);
}

.cases-heading {
  margin-bottom: 80px;
}

.case {
  overflow: hidden;
  margin-top: 30px;
  border: 1px solid var(--ink);
  border-radius: var(--radius-lg);
  background: var(--white);
}

.case-featured {
  background: var(--ink);
  color: #c6c8c1;
}

.case-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.58fr);
  align-items: end;
  gap: 64px;
  border-bottom: 1px solid var(--line);
  padding: clamp(34px, 5vw, 64px);
}

.case-featured .case-header {
  border-color: var(--line-dark);
}

.case-number {
  margin-bottom: 36px;
  color: var(--muted);
}

.case-featured .case-number {
  color: var(--lime);
}

.case-header h3 {
  margin: 0;
  font-size: clamp(3.5rem, 7vw, 7rem);
}

.case-featured .case-header h3 {
  color: var(--white);
}

.case-thesis {
  margin: 0 0 8px;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1.35rem, 2.3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.3;
}

.case-featured .case-thesis {
  color: var(--white);
}

.case-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.case-flow > div {
  min-height: 340px;
  border-right: 1px solid var(--line);
  padding: clamp(28px, 3vw, 40px);
}

.case-featured .case-flow > div {
  border-color: var(--line-dark);
}

.case-flow > div:last-child {
  border-right: 0;
}

.case-flow span {
  display: inline-flex;
  margin-bottom: 84px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 11px;
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.case-featured .case-flow span {
  border-color: var(--lime);
  color: var(--lime);
}

.case-flow p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.7;
}

.case-featured .case-flow p {
  color: #c6c8c1;
}

.case-proof {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 36px;
  border-top: 1px solid var(--line);
  padding: 28px clamp(34px, 5vw, 64px);
  background: var(--paper-strong);
}

.case-featured .case-proof {
  border-color: var(--line-dark);
  background: var(--lime);
  color: var(--ink);
}

.case-proof p {
  margin: 0;
}

.case-proof ul,
.intersection {
  display: flex;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.case-proof li,
.intersection li {
  border: 1px solid rgba(16, 17, 15, 0.22);
  border-radius: 999px;
  padding: 6px 11px;
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 600;
}

/* About */
.about {
  background: var(--white);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  gap: clamp(70px, 11vw, 160px);
}

.about h2 {
  margin: 0;
  font-size: clamp(2.8rem, 5vw, 5rem);
}

.about-copy > p {
  margin-bottom: 26px;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.5vw, 1.25rem);
}

.intersection {
  margin: 42px 0;
}

.intersection li {
  padding: 8px 14px;
  background: var(--lime);
}

.tools-note {
  border-top: 1px solid var(--line);
  padding-top: 26px;
  color: var(--muted) !important;
  font-size: 0.9rem !important;
}

/* Closing and footer */
.closing {
  padding: clamp(100px, 13vw, 180px) 0;
  background: var(--ink);
  color: #c6c8c1;
  text-align: center;
}

.closing-inner {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.closing h2 {
  max-width: 1000px;
  margin-bottom: 34px;
  color: var(--white);
  font-size: clamp(3.8rem, 8vw, 8rem);
}

.closing > .container > p:not(.section-kicker) {
  max-width: 720px;
  margin-bottom: 42px;
  font-size: 1.1rem;
}

.site-footer {
  border-top: 1px solid var(--line-dark);
  padding: 34px 0;
  background: var(--ink);
  color: #9ea198;
}

.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 34px;
}

.footer-brand img {
  width: 150px;
}

.footer-inner p {
  margin: 0;
  font-size: 0.84rem;
}

.footer-links {
  display: flex;
  gap: 22px;
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 0.84rem;
  font-weight: 600;
}

.footer-links a:hover {
  color: var(--lime);
}

.copyright {
  white-space: nowrap;
}

@media (max-width: 1120px) {
  .desktop-nav {
    gap: 20px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(330px, 0.8fr);
  }

  .portrait-shell > img {
    height: min(62vh, 580px);
    min-height: 480px;
  }

  .note-top {
    left: -12%;
  }

  .note-bottom {
    right: -5%;
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-steps li:nth-child(2) {
    border-right: 0;
  }

  .process-steps li:nth-child(n + 3) {
    margin-top: 44px;
  }

  .process-steps li:nth-child(3) {
    padding-left: 0;
  }

  .case-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-flow > div:nth-child(2) {
    border-right: 0;
  }

  .case-flow > div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .case-featured .case-flow > div:nth-child(n + 3) {
    border-color: var(--line-dark);
  }

  .case-flow span {
    margin-bottom: 54px;
  }

  .case-flow > div {
    min-height: 280px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 78px;
  }

  .container {
    width: min(calc(100% - 36px), var(--container));
  }

  .header-inner {
    grid-template-columns: 1fr auto auto;
    gap: 12px;
  }

  .brand img {
    width: 136px;
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: grid;
    width: 48px;
    height: 48px;
    place-content: center;
    gap: 7px;
    border: 1px solid var(--ink);
    border-radius: 50%;
    background: var(--paper);
    color: var(--ink);
    cursor: pointer;
  }

  .menu-toggle span {
    width: 20px;
    height: 2px;
    background: currentColor;
    transition: transform 220ms var(--ease);
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4.5px) rotate(-45deg);
  }

  .mobile-menu {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: flex;
    max-height: 0;
    overflow: hidden;
    flex-direction: column;
    background: var(--paper);
    opacity: 0;
    pointer-events: none;
    transition:
      max-height 300ms var(--ease),
      opacity 180ms ease;
  }

  .mobile-menu.is-open {
    max-height: calc(100svh - var(--header-height));
    padding: 24px 18px 34px;
    border-bottom: 1px solid var(--line);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-menu > a:not(.button) {
    display: flex;
    min-height: 58px;
    align-items: center;
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    font-family: "Space Grotesk", system-ui, sans-serif;
    font-size: 1.15rem;
    font-weight: 600;
  }

  .mobile-menu .button {
    margin-top: 26px;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + 62px) 0 94px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .hero h1 {
    max-width: 740px;
  }

  .hero-visual {
    width: min(78%, 500px);
    margin-inline: auto;
  }

  .portrait-shell {
    margin: 0;
  }

  .symptoms-grid,
  .section-heading,
  .principle-grid,
  .about-grid,
  .case-header {
    grid-template-columns: 1fr;
  }

  .sticky-intro {
    position: static;
  }

  .section-heading,
  .case-header {
    gap: 34px;
  }

  .principle-grid {
    gap: 60px;
  }

  .case-proof {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

  .footer-inner > p:nth-of-type(1) {
    text-align: right;
  }
}

@media (max-width: 620px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .section {
    padding: 88px 0;
  }

  h1 {
    font-size: clamp(3rem, 14vw, 4.5rem);
    line-height: 0.96;
  }

  h2 {
    font-size: clamp(2.45rem, 12vw, 3.6rem);
  }

  .section-kicker,
  .eyebrow {
    font-size: 0.68rem;
  }

  .hero {
    padding-top: calc(var(--header-height) + 44px);
  }

  .hero::before,
  .hero-watermark {
    display: none;
  }

  .hero-lead {
    font-size: 1.02rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    gap: 14px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .text-link {
    justify-content: center;
    border: 0;
  }

  .hero-support {
    text-align: center;
    line-height: 1.7;
  }

  .hero-visual {
    width: calc(100% - 28px);
    margin-top: 8px;
  }

  .portrait-shell {
    box-shadow: 12px 14px 0 var(--lime);
  }

  .portrait-shell > img {
    height: 440px;
    min-height: 0;
  }

  .portrait-note {
    max-width: calc(100% - 26px);
    font-size: 0.74rem;
  }

  .note-top {
    top: 18%;
    left: -7px;
  }

  .note-bottom {
    right: -7px;
    bottom: 10%;
  }

  .signal-track {
    padding: 14px 0;
  }

  .symptoms-grid {
    gap: 48px;
  }

  .symptom-list blockquote {
    padding-block: 24px;
    font-size: 1.18rem;
  }

  .symptom-conclusion {
    margin-top: 64px;
  }

  .section-heading {
    margin-bottom: 62px;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .process-steps li,
  .process-steps li:first-child,
  .process-steps li:nth-child(3),
  .process-steps li:last-child {
    min-height: auto;
    margin: 0;
    border-right: 0;
    padding: 24px 0 42px;
  }

  .process-steps li:not(:first-child) {
    margin-top: 14px;
  }

  .process-steps h3 {
    margin: 52px 0 14px;
  }

  .process-steps p {
    max-width: 100%;
  }

  .principle {
    padding: 92px 0;
  }

  .principle h2 {
    font-size: clamp(3.8rem, 19vw, 5.5rem);
  }

  .cases-heading {
    margin-bottom: 58px;
  }

  .case {
    border-radius: 24px;
  }

  .case-header {
    padding: 30px 24px;
  }

  .case-number {
    margin-bottom: 28px;
    font-size: 0.66rem;
  }

  .case-header h3 {
    font-size: clamp(3rem, 15vw, 4.6rem);
  }

  .case-thesis {
    font-size: 1.25rem;
  }

  .case-flow {
    grid-template-columns: 1fr;
  }

  .case-flow > div,
  .case-flow > div:nth-child(2),
  .case-flow > div:nth-child(n + 3) {
    min-height: auto;
    border-top: 1px solid var(--line);
    border-right: 0;
    padding: 30px 24px 36px;
  }

  .case-featured .case-flow > div {
    border-color: var(--line-dark);
  }

  .case-flow > div:first-child {
    border-top: 0;
  }

  .case-flow span {
    margin-bottom: 28px;
  }

  .case-proof {
    padding: 26px 24px;
  }

  .case-proof ul {
    gap: 6px;
  }

  .about-grid {
    gap: 50px;
  }

  .closing h2 {
    font-size: clamp(3.3rem, 16vw, 5rem);
  }

  .closing .button {
    width: 100%;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: left;
  }

  .footer-inner > p:nth-of-type(1) {
    text-align: left;
  }

  .footer-links {
    min-height: 44px;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}