:root {
  --case-bg: #f6f8fc;
  --case-panel: #ffffff;
  --case-panel-soft: #eef4ff;
  --case-text: #101828;
  --case-muted: #5d6b82;
  --case-line: #d8e0ec;
  --case-blue: #1d4ed8;
  --case-navy: #0f172a;
  --case-green: #16a34a;
  --case-shadow: 0 18px 44px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "DM Sans", sans-serif !important;
  color: var(--case-text);
  background: var(--case-bg);
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.65;
}

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

.case-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  padding: 12px clamp(18px, 4vw, 56px);
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid var(--case-line);
  backdrop-filter: blur(16px);
}

.case-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.case-brand img {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.case-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.case-nav a,
.case-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 10px 16px;
  border: 1px solid var(--case-line);
  border-radius: 12px;
  background: #fff;
  color: var(--case-navy);
  font-weight: 700;
  line-height: 1.15;
}

.case-nav a:hover,
.case-btn:hover,
.case-nav a:focus-visible,
.case-btn:focus-visible {
  border-color: var(--case-blue);
  box-shadow: 0 0 0 4px rgba(29,78,216,.12);
  outline: none;
}

.case-btn--primary {
  background: var(--case-blue);
  color: #fff;
  border-color: var(--case-blue);
}

.case-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(28px, 6vw, 72px) 0;
}

.case-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: clamp(20px, 4vw, 48px);
  align-items: stretch;
}

.case-kicker {
  color: var(--case-blue);
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  font-size: .78rem;
  margin: 0 0 12px;
}

.case-hero h1 {
  margin: 0;
  font-size: clamp(2.3rem, 5vw, 4.9rem);
  line-height: .98;
  letter-spacing: -.045em;
  color: var(--case-navy);
}

.case-lede {
  margin: 18px 0 0;
  max-width: 760px;
  color: var(--case-muted);
  font-size: clamp(1.02rem, 1.35vw, 1.28rem);
}

.case-proof-card,
.case-section,
.case-metric,
.case-tool,
.case-step {
  background: var(--case-panel);
  border: 1px solid var(--case-line);
  border-radius: 14px;
  box-shadow: var(--case-shadow);
}

.case-proof-card {
  padding: clamp(18px, 3vw, 28px);
  display: grid;
  align-content: center;
  gap: 16px;
}

.case-proof-label {
  margin: 0;
  color: var(--case-muted);
  font-size: .9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.case-proof-card strong {
  display: block;
  color: var(--case-navy);
  font-size: clamp(1.2rem, 2vw, 1.8rem);
  line-height: 1.15;
}

.case-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.case-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0 0;
}

.case-metric {
  padding: 18px;
  min-height: 130px;
}

.case-metric strong {
  display: block;
  color: var(--case-navy);
  font-size: clamp(1.65rem, 3vw, 2.6rem);
  line-height: 1;
  letter-spacing: -.04em;
}

.case-metric span {
  display: block;
  margin-top: 10px;
  color: var(--case-muted);
  font-weight: 650;
  line-height: 1.3;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.case-section {
  padding: clamp(20px, 3vw, 30px);
}

.case-section h2,
.case-section h3 {
  margin: 0 0 12px;
  color: var(--case-navy);
  font-size: clamp(1.25rem, 1.7vw, 1.7rem);
  line-height: 1.2;
  letter-spacing: -.02em;
}

.case-section p {
  margin: 0;
  color: var(--case-muted);
}

.case-section ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--case-muted);
}

.case-section li + li { margin-top: 8px; }

.case-section--wide { grid-column: span 2; }
.case-section--full { grid-column: 1 / -1; }

.case-section-number {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  margin-bottom: 12px;
  border: 1px solid var(--case-line);
  border-radius: 8px;
  background: var(--case-panel-soft);
  color: var(--case-blue);
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.case-question {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--case-navy);
  color: #fff;
  font-weight: 700;
}

.case-architecture {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.case-architecture span {
  display: block;
  padding: 11px 13px;
  border: 1px solid var(--case-line);
  border-radius: 10px;
  background: #fff;
  color: var(--case-navy);
  font-weight: 700;
}

.case-architecture em {
  color: var(--case-blue);
  font-style: normal;
  font-weight: 800;
  text-align: center;
}

.case-before-after {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 14px;
}

.case-before-after .case-architecture {
  margin-top: 0;
}

.case-before-after h3 {
  margin: 0 0 10px;
  color: var(--case-navy);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
}

.case-before-after-panel {
  min-width: 0;
}

.case-mini-title {
  display: block;
  margin: 16px 0 6px;
  color: var(--case-navy);
  font-weight: 800;
}

.case-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.case-tool {
  padding: 8px 11px;
  color: var(--case-navy);
  font-weight: 700;
  font-size: .92rem;
  box-shadow: none;
}

.case-steps {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.case-step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  box-shadow: none;
}

.case-step span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--case-panel-soft);
  color: var(--case-blue);
  font-weight: 800;
}

.case-step strong {
  display: block;
  color: var(--case-navy);
  line-height: 1.2;
}

.case-step p {
  margin: 4px 0 0;
  color: var(--case-muted);
}

.case-note {
  margin-top: 28px;
  padding: 18px 20px;
  border-left: 4px solid var(--case-blue);
  background: #fff;
  color: var(--case-muted);
  border-radius: 12px;
}

.case-footer {
  padding: 26px clamp(18px, 4vw, 56px);
  text-align: center;
  color: var(--case-muted);
  border-top: 1px solid var(--case-line);
  background: #fff;
}

.case-narrative {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  max-width: 1020px;
  margin: 34px auto 0;
}

.case-narrative-section {
  padding: clamp(24px, 4vw, 42px) 0;
  border-bottom: 1px solid var(--case-line);
}

.case-narrative-section:first-child { padding-top: 0; }

.case-narrative-section h2,
.case-narrative-section h3 {
  margin: 0 0 12px;
  color: var(--case-navy);
  letter-spacing: -.02em;
  line-height: 1.15;
}

.case-narrative-section h2 {
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
}

.case-narrative-section h3 {
  margin-top: 24px;
  font-size: clamp(1.12rem, 1.6vw, 1.35rem);
}

.case-narrative-section p {
  max-width: 84ch;
  margin: 0;
  color: var(--case-muted);
  font-size: clamp(1rem, 1.2vw, 1.08rem);
  line-height: 1.75;
}

.case-narrative-section p + p,
.case-narrative-section ul + p,
.case-narrative-section p + ul {
  margin-top: 14px;
}

.case-narrative-section ul {
  max-width: 84ch;
  margin: 14px 0 0;
  padding-left: 22px;
  color: var(--case-muted);
  line-height: 1.65;
}

.case-narrative-section li + li { margin-top: 8px; }

.case-narrative-callout {
  margin: 20px 0 0;
  padding: 18px 20px;
  border-left: 4px solid var(--case-blue);
  background: var(--case-panel-soft);
  color: var(--case-navy);
  font-weight: 750;
  line-height: 1.55;
}

.case-architecture-diagram {
  margin: 24px 0 4px;
  border: 1px solid var(--case-line);
  border-radius: 18px;
  overflow: hidden;
  background: #fff;
}

.case-architecture-image {
  position: relative;
  width: min(1180px, calc(100vw - 32px));
  max-width: calc(100vw - 32px);
  margin: 24px 0 4px 50%;
  border: 1px solid var(--case-line);
  border-radius: 18px;
  overflow-x: auto;
  overflow-y: hidden;
  background: #fff;
  box-shadow: var(--case-shadow);
  transform: translateX(-50%);
  scrollbar-width: thin;
  scrollbar-color: rgba(29, 78, 216, .55) transparent;
}

.case-figure-fullscreen-btn {
  position: sticky;
  top: 12px;
  left: calc(100% - 148px);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  margin: 12px 12px -54px auto;
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 10px;
  background: #0b1b33;
  color: #fff;
  box-shadow: 0 16px 32px rgba(15, 23, 42, .18);
  cursor: pointer;
  font: inherit;
  font-size: .92rem;
  font-weight: 760;
}

.case-figure-fullscreen-btn:hover,
.case-figure-fullscreen-btn:focus-visible {
  background: #12325d;
  outline: 3px solid rgba(37, 99, 235, .28);
  outline-offset: 2px;
}

.case-architecture-image img {
  display: block;
  width: 100%;
  min-width: 1040px;
  height: auto;
}

.case-architecture-image figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--case-line);
  color: var(--case-muted);
  font-size: .92rem;
  line-height: 1.5;
}

.case-diagram-open {
  overflow: hidden;
}

.case-diagram-modal[hidden] {
  display: none !important;
}

.case-diagram-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  background: rgba(5, 12, 28, .94);
  color: #fff;
}

.case-diagram-modal__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px clamp(14px, 3vw, 28px);
  border-bottom: 1px solid rgba(255, 255, 255, .16);
  background: #0b1b33;
  box-shadow: 0 18px 36px rgba(0, 0, 0, .24);
}

.case-diagram-modal__title {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.case-diagram-modal__title strong {
  overflow: hidden;
  color: #fff;
  font-size: clamp(1rem, 2vw, 1.18rem);
  font-weight: 780;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.case-diagram-modal__hint {
  color: rgba(226, 232, 240, .78);
  font-size: .86rem;
  line-height: 1.35;
}

.case-diagram-modal__close {
  flex: 0 0 auto;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 10px;
  background: #fff;
  color: #0b1b33;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
}

.case-diagram-modal__close:hover,
.case-diagram-modal__close:focus-visible {
  background: #eaf1ff;
  outline: 3px solid rgba(147, 197, 253, .42);
  outline-offset: 2px;
}

.case-diagram-modal__body {
  overflow: auto;
  padding: clamp(14px, 2.4vw, 28px);
  display: grid;
  align-items: start;
  justify-items: center;
  overscroll-behavior: contain;
}

.case-diagram-modal__body img {
  display: block;
  width: min(1600px, 96vw);
  max-width: none;
  height: auto;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 28px 70px rgba(0, 0, 0, .34);
}

.case-architecture-row {
  display: grid;
  grid-template-columns: minmax(140px, .8fr) minmax(0, 1.5fr) minmax(120px, .8fr);
  align-items: stretch;
  border-bottom: 1px solid var(--case-line);
}

.case-architecture-row:last-child { border-bottom: 0; }

.case-architecture-node,
.case-architecture-action,
.case-architecture-outcome {
  padding: 16px;
  min-width: 0;
}

.case-architecture-node {
  background: var(--case-navy);
  color: #fff;
  font-weight: 800;
}

.case-architecture-action {
  border-left: 1px solid var(--case-line);
  border-right: 1px solid var(--case-line);
  color: var(--case-muted);
}

.case-architecture-action strong,
.case-architecture-outcome strong {
  display: block;
  margin-bottom: 4px;
  color: var(--case-navy);
}

.case-architecture-outcome {
  background: var(--case-panel-soft);
  color: var(--case-muted);
}

.case-narrative.case-grid {
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  max-width: 1020px;
  margin: 34px auto 0;
}

.case-narrative--plain .case-section {
  padding: clamp(24px, 4vw, 42px) 0;
  border: 0;
  border-bottom: 1px solid var(--case-line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.case-narrative--plain .case-section:first-child {
  padding-top: 0;
}

.case-narrative--plain .case-section--wide,
.case-narrative--plain .case-section--full {
  grid-column: auto;
}

.case-narrative--plain .case-section-number {
  display: none;
}

.case-narrative--plain .case-section h2,
.case-narrative--plain .case-section h3 {
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
  line-height: 1.15;
  margin-bottom: 12px;
}

.case-narrative--plain .case-section p {
  max-width: 84ch;
  font-size: clamp(1rem, 1.2vw, 1.08rem);
  line-height: 1.75;
}

.case-narrative--plain .case-section p + p,
.case-narrative--plain .case-section ul + p,
.case-narrative--plain .case-section p + ul {
  margin-top: 14px;
}

.case-narrative--plain .case-section ul {
  max-width: 84ch;
  line-height: 1.65;
}

@media (max-width: 900px) {
  .case-hero,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .case-section--wide { grid-column: auto; }
  .case-section--full { grid-column: auto; }

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

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

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

  .case-architecture-action {
    border-left: 0;
    border-right: 0;
    border-top: 1px solid var(--case-line);
    border-bottom: 1px solid var(--case-line);
  }
}

@media (max-width: 640px) {
  .case-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .case-nav {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .case-nav a {
    width: 100%;
    min-height: 46px;
  }

  .case-shell {
    width: min(100% - 22px, 1180px);
    padding-top: 26px;
  }

  .case-metrics {
    gap: 10px;
  }

  .case-metric {
    min-height: 118px;
    padding: 15px;
  }

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

  .case-btn {
    width: 100%;
  }

  .case-architecture-image {
    border-radius: 14px;
  }

  .case-architecture-image img {
    min-width: 980px;
  }

  .case-figure-fullscreen-btn {
    left: calc(100% - 132px);
    min-height: 40px;
    margin: 10px 10px -50px auto;
    padding: 9px 13px;
    font-size: .86rem;
  }

  .case-diagram-modal__bar {
    align-items: flex-start;
  }

  .case-diagram-modal__hint {
    font-size: .78rem;
  }

  .case-diagram-modal__body {
    justify-items: start;
  }

  .case-diagram-modal__body img {
    width: 1180px;
    border-radius: 10px;
  }
}