.case-study-hero {
  position: relative;
  overflow: hidden;
  padding-block: 42px 82px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 82% 20%, rgba(59, 130, 246, 0.18), transparent 30rem),
    #07090c;
}

.case-study-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 214, 181, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 214, 181, 0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  content: "";
  mask-image: radial-gradient(circle at 75% 30%, black, transparent 65%);
  pointer-events: none;
}

.case-breadcrumb {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 72px;
  color: #7f8999;
  font-size: 0.76rem;
  font-weight: 650;
}

.case-breadcrumb a {
  color: #b6bfcd;
}

.case-breadcrumb a:hover {
  color: var(--text);
}

.case-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.55fr);
  align-items: center;
  gap: clamp(60px, 9vw, 120px);
}

.case-hero-copy h1 {
  max-width: 900px;
  font-size: clamp(3.1rem, 6.5vw, 6.3rem);
}

.case-hero-lede {
  max-width: 720px;
  margin-top: 28px;
  color: #b9c1ce;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
}

.case-hero-copy .hero-actions {
  margin-top: 34px;
}

.case-system-card {
  padding: 28px;
  border: 1px solid #303846;
  border-radius: 20px;
  background: rgba(18, 23, 32, 0.86);
  box-shadow: var(--shadow);
}

.case-system-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
  color: var(--accent-2);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.case-system-top i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 5px rgba(56, 214, 181, 0.09);
}

.case-system-card > img {
  width: 210px;
  margin-top: 60px;
}

.case-system-card > p {
  margin-top: 18px;
  font-size: 0.83rem;
}

.case-system-route {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 7px;
  color: #a7b0bf;
  font-size: 0.64rem;
}

.case-system-route span {
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #0a0d12;
}

.case-system-route b {
  color: var(--accent);
}

.case-meta {
  position: relative;
  margin: 72px 0 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.case-meta > div {
  min-height: 115px;
  padding: 22px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(12, 15, 20, 0.72);
}

.case-meta dt {
  color: var(--accent-2);
  font-size: 0.64rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.case-meta dd {
  margin-top: 9px;
  color: #bec6d1;
  font-size: 0.8rem;
}

.case-jump-nav {
  position: sticky;
  z-index: 80;
  top: var(--header-height);
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
  background: rgba(8, 10, 14, 0.96);
  backdrop-filter: blur(12px);
  scrollbar-width: none;
}

.case-jump-nav::-webkit-scrollbar {
  display: none;
}

.case-jump-nav .container {
  min-width: max-content;
  display: flex;
  align-items: center;
  gap: 30px;
}

.case-jump-nav a {
  padding-block: 15px;
  color: #8e98a8;
  font-size: 0.72rem;
  font-weight: 700;
  transition: color 160ms ease;
}

.case-jump-nav a:hover {
  color: var(--text);
}

.section-soft {
  background: var(--section);
}

.section-dark {
  background:
    radial-gradient(circle at 15% 20%, rgba(59, 130, 246, 0.11), transparent 26rem),
    #07090c;
}

.case-two-column,
.case-tools-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(60px, 10vw, 130px);
  align-items: start;
}

.case-section-heading h2 {
  font-size: clamp(2.2rem, 4.4vw, 4.25rem);
}

.case-heading-wide {
  max-width: 940px;
  margin-bottom: 68px;
}

.case-prose {
  display: grid;
  gap: 22px;
}

.case-prose > p {
  color: #abb5c3;
}

.case-prose .case-lead {
  color: #d1d7e0;
  font-size: clamp(1.04rem, 1.7vw, 1.22rem);
}

.case-constraint {
  margin-top: 14px;
  padding: 24px;
  border: 1px solid rgba(56, 214, 181, 0.25);
  border-radius: 12px;
  background: rgba(56, 214, 181, 0.05);
}

.case-constraint strong {
  color: var(--accent-2);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.case-constraint p {
  margin-top: 9px;
  font-size: 0.88rem;
}

.case-goal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.case-goal-grid article {
  min-height: 310px;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
}

.case-goal-grid article > span {
  color: var(--accent-2);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.case-goal-grid h3 {
  margin-top: 62px;
}

.case-goal-grid p {
  margin-top: 16px;
}

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

.decision-row {
  display: grid;
  grid-template-columns: 56px minmax(260px, 0.72fr) minmax(0, 1fr);
  gap: 30px;
  align-items: start;
  padding-block: 34px;
  border-bottom: 1px solid var(--border);
}

.decision-number {
  color: var(--accent-2);
  font-family: "Manrope", sans-serif;
  font-size: 0.7rem;
  font-weight: 800;
}

.decision-label {
  margin-bottom: 10px;
  color: #778292;
  font-size: 0.68rem;
  font-weight: 750;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.decision-row h3 {
  font-size: clamp(1.2rem, 2.1vw, 1.65rem);
}

.decision-row > p {
  padding-top: 25px;
  font-size: 0.9rem;
}

.case-tools-intro {
  max-width: 550px;
  margin-top: 24px;
}

.tool-groups {
  display: grid;
  gap: 22px;
}

.tool-groups article {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--card);
}

.tool-groups h3 {
  font-size: 1rem;
}

.tool-chips {
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.tool-chips li {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #0a0d12;
  color: #aab4c3;
  font-size: 0.71rem;
}

.case-prose code {
  padding: 2px 5px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: #080a0e;
  color: var(--accent-2);
  font-size: 0.82em;
}

.deployment-flow {
  margin: 70px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  list-style: none;
}

.deployment-flow li {
  min-height: 250px;
  padding: 28px;
}

.deployment-flow li + li {
  border-left: 1px solid var(--border);
}

.deployment-flow span {
  color: var(--accent-2);
  font-size: 0.67rem;
  font-weight: 800;
}

.deployment-flow strong {
  display: block;
  margin-top: 60px;
  font-family: "Manrope", sans-serif;
}

.deployment-flow p {
  margin-top: 12px;
  font-size: 0.82rem;
}

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

.security-grid > div {
  min-height: 220px;
  padding: 25px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(18, 23, 32, 0.72);
}

.security-grid dt {
  color: var(--text);
  font-family: "Manrope", sans-serif;
  font-size: 1rem;
  font-weight: 750;
}

.security-grid dd {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.82rem;
}

.result-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: clamp(60px, 10vw, 130px);
  padding-bottom: 68px;
  border-bottom: 1px solid var(--border);
}

.result-copy {
  display: grid;
  gap: 22px;
}

.result-copy p:first-child {
  color: #d1d7e0;
  font-size: clamp(1.02rem, 1.7vw, 1.2rem);
}

.result-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.result-grid article {
  min-height: 200px;
  padding: 24px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--card);
}

.result-grid strong {
  color: var(--text);
  font-family: "Manrope", sans-serif;
}

.result-grid p {
  margin-top: 14px;
  font-size: 0.82rem;
}

.case-reflection {
  margin-top: 56px;
  padding: clamp(30px, 6vw, 70px);
  border: 1px solid rgba(59, 130, 246, 0.36);
  border-radius: 18px;
  background:
    radial-gradient(circle at 86% 30%, rgba(59, 130, 246, 0.13), transparent 20rem),
    var(--card);
}

.case-reflection blockquote {
  max-width: 900px;
  margin-bottom: 0;
  color: var(--text);
  font-family: "Manrope", sans-serif;
  font-size: clamp(1.7rem, 4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.cta-band {
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at 80% 50%, rgba(59, 130, 246, 0.18), transparent 24rem),
    var(--section);
}

.cta-band-inner {
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding-block: 70px;
}

.cta-band h2 {
  max-width: 750px;
}

@media (max-width: 980px) {
  .case-hero-grid,
  .case-two-column,
  .case-tools-grid,
  .result-panel {
    grid-template-columns: 1fr;
  }

  .case-system-card {
    max-width: 560px;
  }

  .case-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .case-goal-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .case-goal-grid article,
  .security-grid > div {
    min-height: auto;
  }

  .decision-row {
    grid-template-columns: 44px minmax(220px, 0.7fr) 1fr;
  }

  .deployment-flow,
  .result-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .deployment-flow li:nth-child(3) {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .deployment-flow li:nth-child(4) {
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 720px) {
  .case-study-hero {
    padding-block: 30px 66px;
  }

  .case-breadcrumb {
    margin-bottom: 54px;
  }

  .case-hero-grid {
    gap: 48px;
  }

  .case-system-card > img {
    margin-top: 45px;
  }

  .case-meta {
    grid-template-columns: 1fr;
    margin-top: 52px;
  }

  .case-meta > div {
    min-height: auto;
  }

  .case-jump-nav .container {
    gap: 22px;
  }

  .decision-row {
    grid-template-columns: 38px 1fr;
  }

  .decision-row > p {
    grid-column: 2;
    padding-top: 0;
  }

  .deployment-flow,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .deployment-flow li {
    min-height: 210px;
  }

  .deployment-flow li + li,
  .deployment-flow li:nth-child(3),
  .deployment-flow li:nth-child(4) {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .cta-band-inner {
    min-height: 330px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .cta-band .button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .case-system-card {
    padding: 22px;
  }

  .case-system-route {
    align-items: stretch;
    flex-direction: column;
  }

  .case-system-route b {
    transform: rotate(90deg);
    align-self: center;
  }

  .case-goal-grid article {
    min-height: auto;
    padding: 24px;
  }

  .case-goal-grid h3 {
    margin-top: 42px;
  }
}