.taean-page {
  background: var(--paper);
}

.taean-header:not(.is-scrolled) .brand-mark {
  background: var(--white);
  color: var(--plum);
}

.taean-header:not(.is-scrolled) .brand-role,
.taean-header:not(.is-scrolled) .nav {
  color: var(--white);
}

.taean-header:not(.is-scrolled) .nav a::after {
  background: var(--mikado);
}

.taean-case-hero {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(44px, 6vw, 100px);
  min-height: 100svh;
  padding: 142px max(32px, calc((100vw - 1280px) / 2)) 64px;
  overflow: hidden;
  background: var(--plum);
  color: var(--white);
}

.taean-hero-copy {
  align-self: end;
  padding-bottom: 28px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(52px, 7vw, 96px);
  color: var(--violet);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.back-link span {
  transition: transform 180ms ease;
}

.back-link:hover span,
.back-link:focus-visible span {
  transform: translateX(-5px);
}

.case-kicker {
  margin: 0;
  color: var(--violet);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.taean-case-hero h1 {
  margin: 20px 0 0;
  font-size: clamp(5rem, 10vw, 9.5rem);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.075em;
}

.taean-hero-statement {
  margin: 42px 0 24px;
  font-size: clamp(1.7rem, 3.1vw, 3.4rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.045em;
}

.taean-hero-statement em {
  color: var(--violet);
  font-style: normal;
}

.taean-hero-description {
  max-width: 610px;
  margin: 0;
  color: #d9cde0;
  font-size: clamp(1rem, 1.4vw, 1.18rem);
}

.taean-meta {
  display: grid;
  gap: 0;
  margin: 48px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
}

.taean-meta div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.taean-meta dt {
  color: var(--violet);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.taean-meta dd {
  margin: 0;
  color: var(--white);
  font-size: 0.86rem;
}

.taean-hero-photo {
  align-self: end;
  margin: 0;
}

.taean-hero-photo img {
  width: 100%;
  min-height: 620px;
  max-height: 760px;
  object-fit: cover;
  object-position: center;
}

.taean-hero-photo figcaption {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 16px;
  color: #d9cde0;
  font-size: 0.75rem;
}

.taean-hero-photo figcaption span {
  color: var(--mikado);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.taean-overview {
  display: grid;
  grid-template-columns: 2fr 4fr 6fr;
  gap: 32px;
  padding: 130px max(32px, calc((100vw - 1280px) / 2));
  background: var(--ivory);
}

.taean-overview-copy p {
  margin: 0 0 20px;
  color: var(--plum);
  font-size: clamp(1.08rem, 1.55vw, 1.35rem);
  font-weight: 600;
  line-height: 1.55;
}

.taean-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.taean-kpis div {
  min-height: 138px;
  padding: 24px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.taean-kpis dt {
  color: var(--plum);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
}

.taean-kpis dd {
  margin: 12px 0 0;
  color: #6a606c;
  font-size: 0.78rem;
}

.taean-strategy {
  padding: 130px max(32px, calc((100vw - 1280px) / 2));
  background: var(--paper);
}

.taean-section-heading {
  display: grid;
  grid-template-columns: 3fr 9fr;
  gap: 32px;
  align-items: start;
  margin-bottom: 72px;
}

.taean-section-heading h2 {
  max-width: 860px;
  margin: 0;
  color: var(--plum);
  font-size: clamp(2.7rem, 4.5vw, 4.8rem);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.strategy-tabs {
  position: sticky;
  top: 88px;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 72px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: rgba(248, 247, 243, 0.96);
  backdrop-filter: blur(14px);
}

.strategy-tab {
  appearance: none;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  min-height: 132px;
  padding: 22px;
  border: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--plum);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease;
}

.strategy-tab > span {
  grid-row: 1 / span 2;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
}

.strategy-tab strong {
  align-self: end;
  font-size: 1rem;
  line-height: 1.25;
}

.strategy-tab small {
  color: #786e7a;
  font-size: 0.72rem;
}

.strategy-tab:hover {
  background: var(--ivory);
}

.strategy-tab.is-active {
  background: var(--purple);
  color: var(--white);
}

.strategy-tab.is-active:nth-child(2) {
  background: var(--cerulean);
}

.strategy-tab.is-active:nth-child(3) {
  background: #2d9d78;
}

.strategy-tab.is-active small {
  color: rgba(255, 255, 255, 0.75);
}

.taean-panel {
  --accent: var(--purple);
  --soft: #f2e9f8;
  scroll-margin-top: 250px;
}

.taean-panel[data-strategy-panel="02"] {
  --accent: var(--cerulean);
  --soft: #e1f1f3;
}

.taean-panel[data-strategy-panel="03"] {
  --accent: #2d9d78;
  --soft: #e1f2ec;
}

.js .taean-panel:not(.is-active) {
  display: none;
}

.taean-panel.is-active {
  animation: panel-in 420ms ease both;
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.panel-heading {
  display: grid;
  grid-template-columns: 8fr 4fr;
  gap: clamp(36px, 7vw, 120px);
  align-items: end;
  padding-bottom: 54px;
  border-bottom: 2px solid var(--accent);
}

.panel-heading > div > p {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.panel-heading h2 {
  margin: 0;
  color: var(--plum);
  font-size: clamp(3rem, 5vw, 5.4rem);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.065em;
}

.panel-heading > p {
  margin: 0;
  color: #615763;
  font-size: 1.02rem;
}

.panel-feature {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(330px, 5fr);
  margin-top: 72px;
  background: var(--plum);
}

.panel-feature img {
  width: 100%;
  min-height: 560px;
  object-fit: cover;
}

.panel-feature-signage {
  grid-template-columns: 1fr;
}

.panel-feature-signage img {
  min-height: 0;
  object-fit: contain;
}

.panel-feature > div {
  align-self: end;
  padding: clamp(32px, 5vw, 68px);
  color: var(--white);
}

.panel-feature span {
  color: var(--mikado);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.panel-feature h3 {
  margin: 24px 0;
  color: var(--white);
  font-size: clamp(1.7rem, 3vw, 3rem);
  line-height: 1.3;
  letter-spacing: -0.04em;
}

.panel-feature p {
  margin: 0;
  color: #d9cde0;
}

.initiative-list {
  margin: 92px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.initiative-list li {
  display: grid;
  grid-template-columns: 1fr 11fr;
  gap: 32px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.initiative-list li > span {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.initiative-list div {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 48px;
}

.initiative-list h3,
.initiative-list p {
  margin: 0;
}

.initiative-list h3 {
  color: var(--plum);
  font-size: clamp(1.3rem, 2vw, 2rem);
  line-height: 1.3;
  letter-spacing: -0.035em;
}

.initiative-list p {
  color: #675d69;
}

.brand-application {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(320px, 5fr);
  margin-top: 92px;
  background: #171717;
  color: var(--white);
}

.brand-application > img {
  width: 100%;
  height: 100%;
  min-height: 640px;
  object-fit: cover;
  object-position: center;
}

.brand-application > div {
  align-self: center;
  padding: clamp(34px, 5vw, 68px);
}

.brand-application span {
  color: var(--mikado);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.brand-application h3 {
  margin: 24px 0;
  font-size: clamp(1.9rem, 3vw, 3.3rem);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.brand-application p {
  margin: 0;
  color: #d8d2d9;
}

.brand-application ul {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.brand-application li {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  color: #d8d2d9;
  font-size: 0.86rem;
}

.brand-application strong {
  display: block;
  margin-bottom: 4px;
  color: var(--white);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.evidence-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 92px;
}

.evidence-gallery figure {
  margin: 0;
}

.evidence-gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 400ms ease;
}

.evidence-gallery figure:hover img {
  transform: scale(1.015);
}

.evidence-gallery figcaption {
  padding: 16px 0 0;
  color: var(--plum);
  font-size: 0.82rem;
  font-weight: 700;
}

.strategy-result {
  margin: 92px 0 0;
  padding: clamp(34px, 5vw, 70px);
  background: var(--soft);
  color: var(--plum);
  font-size: clamp(1.8rem, 3.7vw, 4rem);
  font-weight: 500;
  line-height: 1.28;
  letter-spacing: -0.05em;
}

.strategy-result strong {
  color: var(--accent);
}

.taean-role {
  padding: 130px max(32px, calc((100vw - 1280px) / 2));
  background: var(--purple);
  color: var(--white);
}

.taean-section-heading-light .section-index,
.taean-section-heading-light h2 {
  color: var(--white);
}

.role-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  border-left: 1px solid rgba(255, 255, 255, 0.35);
  list-style: none;
}

.role-flow li {
  min-height: 300px;
  padding: 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.35);
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.role-flow span {
  color: var(--mikado);
  font-size: 0.8rem;
  font-weight: 700;
}

.role-flow h3 {
  margin: 78px 0 20px;
  font-size: clamp(1.45rem, 2vw, 2.2rem);
}

.role-flow p {
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.9rem;
}

.taean-role blockquote {
  margin: 108px 0 0;
  color: var(--white);
  font-size: clamp(2.2rem, 5vw, 5.5rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.055em;
  text-align: center;
}

.taean-role blockquote span {
  color: var(--mikado);
}

.taean-role blockquote strong {
  color: var(--violet);
}

.taean-next {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background: var(--ivory);
}

.taean-next a {
  position: relative;
  min-height: 260px;
  padding: 54px max(32px, calc((100vw - 1280px) / 2));
  border-right: 1px solid var(--line);
}

.taean-next a:first-child {
  padding-right: clamp(32px, 6vw, 100px);
  padding-left: max(32px, calc((100vw - 1280px) / 2));
}

.taean-next a:last-child {
  padding-right: max(32px, calc((100vw - 1280px) / 2));
  padding-left: clamp(32px, 6vw, 100px);
}

.taean-next span {
  display: block;
  color: var(--purple);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.taean-next strong {
  display: block;
  margin-top: 54px;
  color: var(--plum);
  font-size: clamp(1.5rem, 2.5vw, 2.5rem);
}

.taean-next i {
  position: absolute;
  right: 44px;
  bottom: 44px;
  color: var(--purple);
  font-size: 2rem;
  font-style: normal;
  transition: transform 180ms ease;
}

.taean-next a:hover i:first-of-type,
.taean-next a:focus-visible i:first-of-type {
  transform: translateX(6px);
}

@media (max-width: 1080px) {
  .taean-case-hero {
    grid-template-columns: 1fr 1fr;
  }

  .taean-overview {
    grid-template-columns: 1fr 3fr;
  }

  .taean-kpis {
    grid-column: 1 / -1;
  }

  .panel-feature {
    grid-template-columns: 1fr;
  }

  .panel-feature img {
    min-height: 480px;
  }

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

@media (max-width: 780px) {
  .taean-case-hero {
    display: flex;
    flex-direction: column;
    min-height: auto;
    padding: 118px 16px 54px;
  }

  .back-link {
    margin-bottom: 56px;
  }

  .taean-case-hero h1 {
    font-size: clamp(5.2rem, 26vw, 8rem);
  }

  .taean-hero-photo img {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .taean-hero-photo figcaption strong {
    display: none;
  }

  .taean-overview,
  .taean-strategy,
  .taean-role {
    padding: 88px 16px;
  }

  .taean-overview,
  .taean-section-heading {
    display: block;
  }

  .taean-overview-copy {
    margin-top: 32px;
  }

  .taean-kpis {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 46px;
  }

  .taean-kpis div {
    min-height: 122px;
    padding: 20px 14px;
  }

  .taean-section-heading h2 {
    margin-top: 28px;
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .strategy-tabs {
    top: 70px;
    display: flex;
    margin-right: -16px;
    margin-left: -16px;
    overflow-x: auto;
    border-left: 0;
    scrollbar-width: none;
  }

  .strategy-tabs::-webkit-scrollbar {
    display: none;
  }

  .strategy-tab {
    flex: 0 0 72vw;
    min-height: 108px;
    padding: 18px 16px;
  }

  .strategy-tab > span {
    font-size: 1.8rem;
  }

  .panel-heading {
    display: block;
  }

  .panel-heading > p {
    margin-top: 32px;
  }

  .panel-heading h2 {
    font-size: clamp(2.7rem, 13vw, 4.5rem);
  }

  .panel-feature {
    margin-top: 48px;
  }

  .panel-feature img {
    min-height: 0;
    aspect-ratio: 4 / 3;
  }

  .initiative-list {
    margin-top: 64px;
  }

  .initiative-list li {
    grid-template-columns: 42px 1fr;
    gap: 12px;
    padding: 28px 0;
  }

  .initiative-list div {
    display: block;
  }

  .initiative-list p {
    margin-top: 12px;
  }

  .brand-application {
    grid-template-columns: 1fr;
    margin-top: 64px;
  }

  .brand-application > img {
    min-height: 0;
    max-height: 620px;
    object-position: center 28%;
  }

  .evidence-gallery {
    grid-template-columns: 1fr;
    gap: 34px;
    margin-top: 64px;
  }

  .strategy-result {
    margin-top: 64px;
  }

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

  .role-flow li {
    min-height: 220px;
  }

  .role-flow h3 {
    margin-top: 46px;
  }

  .taean-role blockquote {
    margin-top: 76px;
    text-align: left;
  }

  .taean-next {
    grid-template-columns: 1fr;
  }

  .taean-next a,
  .taean-next a:first-child,
  .taean-next a:last-child {
    min-height: 220px;
    padding: 40px 16px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  .taean-panel.is-active {
    animation: none;
  }
}

/* Keep the wide before/after comparison intact at every breakpoint. */
.panel-feature-signage img {
  min-height: 0;
  aspect-ratio: auto;
}