.case-article-main {
  overflow: hidden;
  padding: 44px 0 80px;
  background:
    radial-gradient(circle at 82% 8%, rgba(158, 76, 255, .11), transparent 26%),
    radial-gradient(circle at 7% 28%, rgba(40, 180, 162, .08), transparent 24%);
}

.case-article {
  width: min(1220px, calc(100% - 96px));
  margin: 0 auto;
}

.case-article-main section {
  width: auto;
  margin: 0;
  padding: 0;
}

.case-article-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 6vw, 82px) clamp(28px, 5vw, 72px);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 16px;
  background:
    linear-gradient(90deg, rgba(2, 6, 17, .96), rgba(6, 10, 24, .82)),
    url("../images/london-hero.png") center / cover no-repeat;
  box-shadow: 0 32px 90px rgba(0, 0, 0, .36), inset 0 0 0 1px rgba(255, 255, 255, .035);
}

.case-article-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 58%, rgba(2, 6, 17, .90)),
    radial-gradient(circle at 91% 20%, rgba(225, 185, 47, .10), transparent 28%);
}

.case-article-hero > * {
  position: relative;
  z-index: 1;
}

.case-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 4px;
  line-height: 1.4;
  text-transform: uppercase;
}

.case-kicker svg {
  width: 24px;
  height: 24px;
  color: var(--gold);
}

.case-meta {
  max-width: 780px;
  margin: 0 0 18px;
  color: #cfd1dc;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.case-article-hero h1 {
  max-width: 1020px;
  margin: 0;
  color: #fff;
  font-size: clamp(39px, 4.5vw, 66px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0;
}

.case-standfirst {
  max-width: 900px;
  margin: 28px 0 0;
  color: #e6e7ee;
  font-size: clamp(19px, 1.55vw, 24px);
  line-height: 1.65;
}

.case-article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 34px;
}

.case-article-proof {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  max-width: 1080px;
  margin-top: 54px;
  border-top: 1px solid rgba(255, 255, 255, .18);
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.case-article-proof span {
  min-height: 92px;
  padding: 20px 22px;
  color: #d9dae4;
  font-size: 15px;
  line-height: 1.42;
  border-right: 1px solid rgba(255, 255, 255, .14);
}

.case-article-proof span:last-child {
  border-right: 0;
}

.case-article-proof strong {
  display: block;
  margin-bottom: 8px;
  color: var(--gold);
  font-size: 21px;
  line-height: 1;
}

.case-article-shell {
  display: grid;
  grid-template-columns: 270px minmax(0, 820px);
  gap: clamp(46px, 7vw, 96px);
  align-items: start;
  padding: 72px 0 0;
}

.case-article-aside {
  position: sticky;
  top: 130px;
}

.case-aside-card {
  padding: 24px;
  border: 1px solid rgba(225, 185, 47, .28);
  border-radius: 10px;
  background: rgba(255, 255, 255, .025);
}

.case-aside-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.case-aside-card p {
  margin: 0;
  color: #dddfe8;
  font-size: 16px;
  line-height: 1.55;
}

.case-article-nav {
  display: grid;
  gap: 0;
  margin-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.case-article-nav a {
  padding: 15px 0;
  color: #cfd1dc;
  font-size: 15px;
  font-weight: 800;
  border-bottom: 1px solid rgba(255, 255, 255, .10);
}

.case-article-nav a:hover {
  color: var(--gold);
}

.case-article-body {
  min-width: 0;
}

.article-section {
  position: relative;
  padding: 0 0 64px;
  margin-bottom: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.article-section:last-of-type {
  margin-bottom: 0;
}

.section-number {
  margin-bottom: 20px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 4px;
}

.article-section h2,
.article-final-cta h2 {
  margin: 0 0 24px;
  color: #fff;
  font-size: clamp(30px, 3vw, 44px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: 0;
}

.article-section p {
  margin: 0 0 22px;
  color: #dfe1ea;
  font-size: clamp(18px, 1.35vw, 21px);
  line-height: 1.78;
}

.article-section p:last-child {
  margin-bottom: 0;
}

.article-section blockquote {
  margin: 34px 0;
  padding: 28px 34px;
  color: var(--gold);
  font-size: clamp(24px, 2.4vw, 36px);
  font-weight: 900;
  line-height: 1.26;
  border-left: 4px solid var(--gold);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(225, 185, 47, .095), rgba(225, 185, 47, .025));
}

.article-emphasis {
  color: var(--gold) !important;
  font-size: clamp(22px, 2vw, 31px) !important;
  font-weight: 900;
  line-height: 1.32 !important;
}

.article-list-panel,
.article-proof-panel {
  margin: 32px 0;
  padding: 28px 30px;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 10px;
  background:
    radial-gradient(circle at 90% 0%, rgba(158, 76, 255, .10), transparent 28%),
    rgba(255, 255, 255, .025);
}

.article-list-panel p,
.article-proof-panel h3 {
  margin: 0 0 18px;
  color: var(--gold);
  font-size: 18px;
  font-weight: 900;
}

.article-list-panel ul,
.article-proof-panel ul {
  display: grid;
  gap: 12px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-list-panel ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.article-list-panel li,
.article-proof-panel li {
  position: relative;
  padding-left: 24px;
  color: #f0f1f6;
  font-size: 17px;
  line-height: 1.55;
}

.article-list-panel li::before,
.article-proof-panel li::before {
  content: "";
  position: absolute;
  top: .68em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--purple));
  box-shadow: 0 0 14px rgba(225, 185, 47, .34);
}

.article-highlight-section {
  padding: 42px 42px 54px;
  border: 1px solid rgba(225, 185, 47, .25);
  border-radius: 14px;
  background:
    radial-gradient(circle at 100% 0%, rgba(225, 185, 47, .11), transparent 28%),
    linear-gradient(180deg, rgba(18, 21, 36, .74), rgba(8, 12, 24, .72));
}

.foundation-flow {
  display: grid;
  gap: 10px;
  margin: 34px 0;
}

.foundation-flow span {
  display: block;
  padding: 13px 0 13px 22px;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.25;
  border-left: 2px solid rgba(158, 76, 255, .72);
  background: linear-gradient(90deg, rgba(158, 76, 255, .10), transparent);
}

.article-proof-panel {
  border-color: rgba(225, 185, 47, .22);
}

.article-method-list {
  display: grid;
  gap: 14px;
  margin-top: 30px;
}

.article-method-list article {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 28px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

.article-method-list article:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.article-method-list strong {
  color: var(--gold);
  font-size: 21px;
  line-height: 1.2;
}

.article-method-list p {
  margin: 0;
  font-size: 17px;
  line-height: 1.62;
}

.article-final-cta {
  margin-top: 72px !important;
  padding: clamp(34px, 4vw, 52px) !important;
  border: 1px solid rgba(225, 185, 47, .42);
  border-radius: 14px;
  background:
    radial-gradient(circle at 12% 0%, rgba(225, 185, 47, .13), transparent 34%),
    linear-gradient(135deg, rgba(18, 21, 36, .92), rgba(8, 12, 24, .88));
  box-shadow: 0 28px 76px rgba(0, 0, 0, .28);
}

.article-final-cta .case-kicker {
  margin-bottom: 16px;
}

.article-final-cta p {
  max-width: 780px;
  margin: 0 0 16px;
  color: #e9eaf0;
  font-size: clamp(18px, 1.35vw, 21px);
  line-height: 1.64;
}

.article-final-cta .btn {
  margin-top: 18px;
}

@media (max-width: 1080px) {
  .case-article {
    width: min(920px, calc(100% - 48px));
  }

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

  .case-article-proof span:nth-child(2) {
    border-right: 0;
  }

  .case-article-proof span:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, .12);
  }

  .case-article-shell {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .case-article-aside {
    position: static;
  }

  .case-article-nav {
    display: none;
  }
}

@media (max-width: 680px) {
  .case-article-main {
    padding: 20px 0 52px;
  }

  .case-article {
    width: calc(100% - 28px);
  }

  .case-article-hero {
    padding: 34px 20px;
  }

  .case-article-actions .btn,
  .article-final-cta .btn {
    width: 100%;
  }

  .case-article-proof,
  .article-list-panel ul,
  .article-method-list article {
    grid-template-columns: 1fr;
  }

  .case-article-proof span,
  .case-article-proof span:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
  }

  .case-article-proof span:last-child {
    border-bottom: 0;
  }

  .article-section {
    padding-bottom: 46px;
    margin-bottom: 46px;
  }

  .article-section blockquote {
    padding: 22px 20px;
  }

  .article-highlight-section,
  .article-list-panel,
  .article-proof-panel,
  .article-final-cta {
    padding: 26px 20px !important;
  }
}