:root {
  color-scheme: light;
  --paper: #f5f6f1;
  --ink: #1b1e1a;
  --muted: #636861;
  --line: rgba(27, 30, 26, 0.22);
  --divider: rgba(27, 30, 26, 0.12);
  --line-strong: #343932;
  --accent: #6f7f29;
  --accent-soft: #dfe6c1;
  --image-ground: #e6e9e1;
  --header-height: 68px;
  --font-sans: Arial, "Helvetica Neue", "PingFang SC", "Noto Sans CJK SC",
    sans-serif;
  --font-mono: "Courier New", "PingFang SC", monospace;
}

@keyframes page-enter {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body.portfolio-home,
body.case-page {
  animation: page-enter 190ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

body.menu-open {
  overflow: hidden;
}

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

button {
  color: inherit;
  font: inherit;
}

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

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 50%;
  z-index: 50;
  padding: 8px 12px;
  transform: translate(-50%, -180%);
  border: 1px solid var(--line-strong);
  background: var(--paper);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translate(-50%, 0);
}

.site-header,
.case-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-height);
  border-bottom: 1px solid var(--divider);
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: blur(14px);
}

.site-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  padding-inline: 22px;
}

.identity {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 12px;
}

.identity__mark {
  display: grid;
  width: 38px;
  height: 28px;
  place-items: center;
  border-right: 1px solid var(--line-strong);
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.identity__name {
  font-size: 12px;
  font-weight: 700;
  line-height: 1.08;
}

.layout-switcher {
  display: grid;
  grid-template-columns: repeat(3, minmax(76px, 1fr));
  align-self: stretch;
}

.layout-switcher button {
  position: relative;
  padding: 0 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
}

.layout-switcher button::after {
  position: absolute;
  right: 12px;
  bottom: -1px;
  left: 12px;
  height: 3px;
  background: var(--accent);
  content: "";
  opacity: 0;
  transform: scaleX(0.4);
  transition:
    opacity 160ms ease,
    transform 160ms ease;
}

.layout-switcher button[aria-pressed="true"] {
  font-weight: 700;
}

.layout-switcher button[aria-pressed="true"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.layout-switcher button:active,
.filter-controls button:active,
.experiment__controls button:active {
  transform: translateY(1px);
}

.header-year {
  align-self: center;
  justify-self: end;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.menu-toggle {
  display: none;
  justify-self: end;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.mobile-menu {
  position: fixed;
  inset: var(--header-height) 0 auto;
  z-index: 29;
  display: flex;
  visibility: hidden;
  height: calc(100dvh - var(--header-height));
  flex-direction: column;
  padding: 28px 18px;
  transform: translateY(-102%);
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper);
  transition:
    transform 360ms cubic-bezier(0.16, 1, 0.3, 1),
    visibility 360ms;
}

.mobile-menu.is-open {
  visibility: visible;
  transform: translateY(0);
}

.mobile-menu a {
  padding-block: 12px;
  border-bottom: 1px solid var(--line);
  font-size: clamp(38px, 12vw, 64px);
  font-weight: 740;
  letter-spacing: -0.07em;
  line-height: 1;
}

.workspace {
  display: grid;
  grid-template-columns:
    minmax(220px, 25fr)
    minmax(400px, 50fr)
    minmax(220px, 25fr);
  width: min(100%, 1760px);
  margin-inline: auto;
  align-items: start;
}

.workspace[data-layout="thinking"] {
  grid-template-columns:
    minmax(330px, 40fr)
    minmax(340px, 35fr)
    minmax(220px, 25fr);
}

.workspace[data-layout="capabilities"] {
  grid-template-columns:
    minmax(200px, 20fr)
    minmax(320px, 30fr)
    minmax(380px, 50fr);
}

.panel {
  min-width: 0;
  background: var(--paper);
}

.panel[tabindex]:focus {
  outline: none;
}

.panel[tabindex]:focus-visible {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.feed-panel {
  border-inline: 1px solid var(--divider);
  container-type: inline-size;
}

.thinking-panel,
.capability-panel {
  position: sticky;
  top: var(--header-height);
  min-height: calc(100dvh - var(--header-height));
  padding: clamp(22px, 2vw, 32px);
  container-type: inline-size;
}

.thinking-panel {
  display: flex;
  flex-direction: column;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.panel-heading p,
.panel-heading span {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
}

.panel-heading span {
  color: var(--muted);
  text-align: right;
}

.thinking-intro {
  margin-top: clamp(38px, 6vh, 72px);
}

.thinking-intro h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(34px, 11cqi, 62px);
  font-weight: 740;
  letter-spacing: -0.07em;
  line-height: 0.95;
}

.thinking-intro > p {
  max-width: 31ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.focus-question {
  margin-top: clamp(42px, 8vh, 86px);
  padding-top: 14px;
  border-top: 2px solid var(--line-strong);
}

.focus-question p {
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
}

.focus-question h2 {
  max-width: 18ch;
  margin: 18px 0 0;
  font-size: clamp(23px, 8cqi, 38px);
  font-weight: 680;
  letter-spacing: -0.055em;
  line-height: 1;
}

.thinking-notes {
  display: grid;
  margin-top: 28px;
}

.thinking-notes article {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.thinking-notes h3,
.thinking-notes p {
  margin: 0;
}

.thinking-notes h3 {
  font-size: 14px;
}

.thinking-notes p {
  display: none;
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.workspace[data-layout="thinking"] .thinking-notes p {
  display: block;
}

.thinking-about {
  margin-top: auto;
  padding-top: 36px;
}

.thinking-about p {
  max-width: 34ch;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.feed-intro {
  display: flex;
  min-height: min(520px, calc(100dvh - var(--header-height)));
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(28px, 4vw, 58px);
}

.feed-intro > p {
  margin: 0 0 auto;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
}

.feed-intro h2 {
  max-width: 10ch;
  margin: 76px 0 0;
  font-size: clamp(52px, 12cqi, 102px);
  font-weight: 750;
  letter-spacing: -0.085em;
  line-height: 0.87;
}

.feed-intro span {
  max-width: 34ch;
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.decision-feed {
  display: grid;
}

.decision-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(28px, 4vw, 56px);
  background: var(--paper);
}

.decision-card--archive {
  min-height: 500px;
  justify-content: space-between;
}

.decision-card[hidden] {
  display: none;
}

.decision-copy h3 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(34px, 9cqi, 72px);
  font-weight: 700;
  letter-spacing: -0.07em;
  line-height: 0.94;
}

.decision-copy p {
  max-width: 40ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.decision-media {
  margin: 30px 0 0;
  overflow: hidden;
  background: var(--image-ground);
}

.decision-media img {
  height: 100%;
  object-fit: cover;
}

.decision-media--health {
  aspect-ratio: 16 / 10;
}

.decision-media--health img {
  object-position: 38% 50%;
}

.decision-media--driver {
  height: clamp(430px, 64vw, 760px);
  margin: 0 0 30px;
}

.decision-media--driver img {
  object-position: top center;
}

.decision-media--security {
  aspect-ratio: 4 / 3;
}

.decision-media--security img {
  object-fit: contain;
  padding: 8%;
}

.decision-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  align-items: end;
  gap: 18px;
  margin-top: 30px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
}

.decision-meta__title {
  color: var(--ink);
  font-weight: 700;
}

.project-link {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-left: 1px solid var(--line-strong);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 22px;
  line-height: 1;
  transition:
    color 160ms ease,
    transform 160ms ease;
}

.project-link:hover {
  color: var(--accent);
  transform: translate(2px, -2px);
}

.experiment {
  display: flex;
  min-height: 300px;
  flex-direction: column;
  justify-content: space-between;
  margin-top: 34px;
  padding-block: 18px;
  border-block: 1px solid var(--line-strong);
}

.experiment__controls {
  display: flex;
  gap: 20px;
}

.experiment__controls button {
  padding: 0 0 6px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
  font-size: 12px;
}

.experiment__controls button[aria-pressed="true"] {
  border-bottom-color: var(--accent);
  color: var(--ink);
  font-weight: 700;
}

.experiment__state {
  margin-top: 68px;
}

.experiment__state strong {
  display: block;
  max-width: 17ch;
  font-size: clamp(26px, 7cqi, 48px);
  letter-spacing: -0.055em;
  line-height: 1.02;
}

.experiment__state p {
  max-width: 34ch;
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.dual-media {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 1px;
  margin-top: 30px;
  background: var(--line-strong);
}

.dual-media .decision-media {
  aspect-ratio: 16 / 11;
  margin: 0;
}

.archive-path {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 86px;
  border-top: 1px solid var(--line-strong);
}

.archive-path section {
  min-height: 180px;
  padding: 14px 16px 0 0;
}

.archive-path section + section {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.archive-path h4,
.archive-path p {
  margin: 0;
}

.archive-path h4 {
  font-size: 16px;
}

.archive-path p {
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.filter-empty {
  padding: 70px 24px;
  border-bottom: 1px solid var(--line-strong);
  text-align: center;
}

.filter-empty h3,
.filter-empty p {
  margin: 0;
}

.filter-empty p {
  margin-top: 8px;
  color: var(--muted);
}

.capability-intro {
  max-width: 30ch;
  margin: clamp(42px, 7vh, 78px) 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.filter-controls {
  display: grid;
  margin-top: 30px;
  border-bottom: 1px solid var(--line);
}

.filter-controls button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 11px 0;
  border: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.filter-controls button[aria-pressed="true"] {
  color: var(--accent);
  font-weight: 700;
}

.filter-controls button[aria-pressed="true"]::before {
  width: 16px;
  margin-right: 8px;
  border-top: 2px solid currentColor;
  content: "";
}

.filter-controls small {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  opacity: 0.68;
}

.layout-note {
  margin-top: clamp(44px, 7vh, 80px);
}

.layout-note h2 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(28px, 9cqi, 44px);
  font-weight: 690;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.layout-note dl {
  margin: 28px 0 0;
  border-top: 1px solid var(--line);
}

.layout-note dl div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-block: 9px;
  border-bottom: 1px solid var(--line);
}

.layout-note dt,
.layout-note dd {
  margin: 0;
  font-size: 12px;
}

.layout-note dd {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.explore-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: clamp(44px, 8vh, 88px);
  border-top: 1px solid var(--line);
}

.explore-nav a {
  padding: 10px 10px 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.35;
}

.explore-nav a:nth-child(even) {
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

.explore-nav a:hover,
.contact-block a:hover,
.case-back:hover,
.case-identity:hover,
.case-index a:hover,
.case-next a:hover {
  color: var(--accent);
}

.contact-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: clamp(50px, 9vh, 100px);
  padding-top: 16px;
  border-top: 2px solid var(--line-strong);
}

.contact-block p {
  max-width: 23ch;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.contact-block a {
  margin-top: 16px;
  padding-bottom: 4px;
  border-bottom: 1px solid currentColor;
  font-size: 13px;
}

.contact-block a span {
  margin: 0 0 0 6px;
  color: inherit;
  font-family: inherit;
  font-size: inherit;
}

.contact-block > span {
  margin-top: 28px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

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

/* Project detail */
.case-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 22px;
}

.case-back,
.case-identity {
  font-size: 12px;
}

.case-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.case-identity {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.case-layout {
  display: grid;
  grid-template-columns: minmax(180px, 20fr) minmax(480px, 60fr) minmax(220px, 20fr);
  width: min(100%, 1760px);
  margin-inline: auto;
}

.case-index,
.case-meta {
  position: sticky;
  top: var(--header-height);
  min-height: calc(100dvh - var(--header-height));
  align-self: start;
  padding: 26px 22px;
}

.case-index > p,
.case-index > strong {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
}

.case-index > strong {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 400;
}

.case-index nav {
  display: grid;
  margin-top: 52px;
  border-bottom: 1px solid var(--line);
}

.case-index nav a {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.case-index nav a[aria-current="page"] {
  color: var(--accent);
  font-weight: 700;
}

.case-article {
  min-width: 0;
  border-inline: 2px solid var(--line-strong);
}

.case-hero {
  min-height: min(650px, calc(100dvh - var(--header-height)));
  padding: clamp(38px, 6vw, 88px);
  border-bottom: 2px solid var(--line-strong);
}

.case-hero > p:first-child {
  margin: 0;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
}

.case-hero h1 {
  max-width: 14ch;
  margin: clamp(90px, 14vh, 160px) 0 0;
  font-size: clamp(48px, 7vw, 96px);
  font-weight: 750;
  letter-spacing: -0.075em;
  line-height: 0.95;
}

.case-hero > p:last-child {
  max-width: 34ch;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.case-visual {
  margin: 0;
  padding: clamp(20px, 4vw, 52px);
  border-bottom: 1px solid var(--line-strong);
}

.case-visual img {
  max-height: 820px;
  object-fit: contain;
  background: var(--image-ground);
}

.case-section {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(0, 2fr);
  gap: 32px;
  padding: clamp(32px, 5vw, 70px);
  border-bottom: 1px solid var(--line-strong);
}

.case-section h2,
.case-section p,
.case-section blockquote {
  margin: 0;
}

.case-section h2,
.case-process h2 {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
}

.case-section p {
  max-width: 50ch;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 28px);
  line-height: 1.42;
}

.case-section blockquote {
  max-width: 22ch;
  font-size: clamp(30px, 4.5vw, 64px);
  font-weight: 680;
  letter-spacing: -0.055em;
  line-height: 1;
}

.case-process {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line-strong);
}

.case-process > div {
  min-height: 280px;
  padding: clamp(24px, 3vw, 42px);
}

.case-process > div + div {
  border-left: 1px solid var(--line);
}

.case-process h2,
.case-process p {
  margin: 0;
}

.case-process p {
  margin-top: 48px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.case-next {
  padding: clamp(34px, 5vw, 70px);
}

.case-next p {
  margin: 0 0 22px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.case-next a {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  padding-top: 18px;
  border-top: 2px solid var(--line-strong);
  font-size: clamp(28px, 5vw, 68px);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
}

.case-meta dl {
  margin: 0;
}

.case-meta dl div {
  padding-block: 12px;
  border-top: 1px solid var(--line);
}

.case-meta dt,
.case-meta dd {
  margin: 0;
  font-size: 11px;
}

.case-meta dt {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
}

.case-meta dd {
  margin-top: 6px;
  line-height: 1.4;
}

.case-meta > p {
  margin: 80px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

@container (max-width: 440px) {
  .feed-intro {
    min-height: 480px;
    padding: 24px;
  }

  .feed-intro h2 {
    font-size: 52px;
  }

  .decision-card {
    padding: 24px;
  }

  .decision-copy h3 {
    font-size: 34px;
  }

  .decision-meta {
    grid-template-columns: 1fr auto;
  }

  .decision-meta__tags {
    grid-column: 1;
  }

  .project-link {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .dual-media,
  .archive-path {
    grid-template-columns: 1fr;
  }

  .archive-path section {
    min-height: auto;
    padding: 18px 0;
  }

  .archive-path section + section {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns:
      minmax(200px, 25fr)
      minmax(380px, 50fr)
      minmax(200px, 25fr);
  }

  .workspace[data-layout="thinking"] {
    grid-template-columns:
      minmax(310px, 40fr)
      minmax(320px, 35fr)
      minmax(200px, 25fr);
  }

  .workspace[data-layout="capabilities"] {
    grid-template-columns:
      minmax(185px, 20fr)
      minmax(300px, 30fr)
      minmax(350px, 50fr);
  }

  .panel-heading span,
  .header-year {
    display: none;
  }

  .case-layout {
    grid-template-columns: minmax(150px, 18fr) minmax(480px, 60fr) minmax(190px, 22fr);
  }
}

@media (max-width: 960px) {
  :root {
    --header-height: 64px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    padding-inline: 16px;
  }

  .layout-switcher,
  .header-year {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .workspace,
  .workspace[data-layout="thinking"],
  .workspace[data-layout="capabilities"],
  .case-layout {
    display: block;
  }

  .thinking-panel,
  .capability-panel,
  .case-index,
  .case-meta {
    position: relative;
    top: auto;
    min-height: auto;
  }

  .thinking-panel {
    min-height: calc(100dvh - var(--header-height));
    border-bottom: 1px solid var(--divider);
  }

  .feed-panel,
  .case-article {
    border-inline: 0;
  }

  .capability-panel {
    border-top: 1px solid var(--divider);
  }

  .thinking-intro h1 {
    max-width: 12ch;
    font-size: clamp(48px, 13vw, 74px);
  }

  .thinking-notes p {
    display: block;
  }

  .thinking-about {
    display: none;
  }

  .feed-intro {
    min-height: 64dvh;
  }

  .explore-nav {
    grid-template-columns: 1fr 1fr;
  }

  .case-index {
    padding-block: 18px;
    border-bottom: 1px solid var(--line-strong);
  }

  .case-index nav {
    display: flex;
    gap: 18px;
    overflow-x: auto;
    margin-top: 22px;
    border: 0;
    scrollbar-width: thin;
  }

  .case-index nav a {
    flex: 0 0 auto;
    border-top: 0;
    border-bottom: 1px solid var(--line);
  }

  .case-hero {
    min-height: auto;
  }

  .case-hero h1 {
    margin-top: 84px;
  }

  .case-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    border-top: 2px solid var(--line-strong);
  }

  .case-meta > p {
    margin-top: 0;
  }
}

@media (max-width: 600px) {
  .identity__mark {
    width: 34px;
  }

  .identity__name,
  .case-identity {
    font-size: 10px;
  }

  .thinking-panel,
  .capability-panel,
  .decision-card,
  .feed-intro {
    padding: 20px;
  }

  .thinking-intro {
    margin-top: 54px;
  }

  .thinking-intro h1 {
    font-size: clamp(44px, 13.5vw, 60px);
  }

  .feed-intro h2 {
    font-size: clamp(48px, 15vw, 66px);
  }

  .decision-copy h3 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .decision-media--driver {
    height: 520px;
  }

  .dual-media,
  .archive-path,
  .case-section,
  .case-process,
  .case-meta {
    grid-template-columns: 1fr;
  }

  .archive-path {
    margin-top: 62px;
  }

  .explore-nav {
    grid-template-columns: 1fr;
  }

  .explore-nav a:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .case-header {
    padding-inline: 16px;
  }

  .case-hero,
  .case-visual,
  .case-section,
  .case-process > div,
  .case-next {
    padding: 24px 20px;
  }

  .case-hero h1 {
    margin-top: 64px;
    font-size: clamp(42px, 12vw, 62px);
  }

  .case-section {
    gap: 34px;
  }

  .case-process > div {
    min-height: 240px;
  }

  .case-process > div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }
}

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

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