.case-hero {
  padding-block: 28px 18px;
}

.case-hero-box {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(340px, 0.72fr);
  gap: clamp(26px, 5vw, 56px);
  align-items: center;
  padding: clamp(28px, 5vw, 56px);
  border-radius: 32px;
  background:
    radial-gradient(circle at 85% 12%, rgba(35, 196, 181, 0.28), transparent 32%),
    linear-gradient(135deg, #0e2233 0%, #0f766e 70%, #23c4b5 100%);
  color: #ffffff;
  box-shadow: 0 26px 68px rgba(15, 23, 42, 0.18);
}

.case-hero-box::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(120deg, transparent 0 58%, rgba(255, 255, 255, 0.12) 58% 59%, transparent 59%),
    linear-gradient(26deg, transparent 0 72%, rgba(255, 255, 255, 0.12) 72% 73%, transparent 73%);
  pointer-events: none;
}

.case-hero-copy {
  display: grid;
  gap: 18px;
  max-inline-size: 780px;
}

.case-hero-copy h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: 0.92;
}

.case-hero-copy p {
  margin: 0;
  max-inline-size: 64ch;
  color: rgba(241, 245, 249, 0.86);
  font-size: 1.08rem;
}

.case-hero-visual {
  display: block;
  inline-size: 100%;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.18);
}

.case-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-block-start: 16px;
}

.case-nav a {
  display: inline-flex;
  align-items: center;
  min-block-size: 40px;
  padding-inline: 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  font-weight: 800;
}

.case-overview {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.6fr);
  gap: 18px;
}

.case-panel,
.case-feature,
.case-tech,
.case-process-step,
.case-note {
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.case-panel {
  display: grid;
  gap: 16px;
  border-radius: 26px;
  padding: clamp(22px, 4vw, 34px);
}

.case-panel h2,
.case-panel h3,
.case-feature h3,
.case-tech h3,
.case-process-step h3,
.case-note h3 {
  margin: 0;
}

.case-panel p,
.case-feature p,
.case-tech p,
.case-process-step p,
.case-note p {
  margin: 0;
  color: var(--muted);
}

.case-fact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.case-fact-list li {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding-block: 10px;
  border-block-end: 1px solid var(--line);
}

.case-fact-list li:last-child {
  border-block-end: 0;
}

.case-fact-list strong {
  color: var(--text);
}

.case-feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.case-feature,
.case-tech,
.case-process-step,
.case-note {
  display: grid;
  align-content: start;
  gap: 10px;
  border-radius: 22px;
  padding: 22px;
}

.case-feature[data-icon]::before,
.case-tech[data-icon]::before {
  content: attr(data-icon);
  display: grid;
  place-items: center;
  inline-size: 42px;
  block-size: 42px;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 900;
}

.case-split {
  display: grid;
  grid-template-columns: minmax(0, 0.76fr) minmax(340px, 0.9fr);
  gap: 28px;
  align-items: center;
}

.case-media {
  display: block;
  inline-size: 100%;
  border-radius: 28px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  background: #ffffff;
}

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

.case-process {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.case-process-step strong {
  color: var(--accent-strong);
  font-size: 1.5rem;
  line-height: 1;
}

.case-note {
  border-color: rgba(179, 111, 36, 0.22);
  background:
    radial-gradient(circle at 10% 0%, rgba(179, 111, 36, 0.12), transparent 34%),
    var(--surface);
}

@media (max-width: 1080px) {
  .case-hero-box,
  .case-overview,
  .case-split,
  .case-tech-grid,
  .case-feature-grid,
  .case-process {
    grid-template-columns: 1fr;
  }

  .case-hero-visual,
  .case-media {
    inline-size: min(100%, 680px);
  }
}

@media (max-width: 640px) {
  .case-hero-box,
  .case-panel,
  .case-feature,
  .case-tech,
  .case-process-step,
  .case-note {
    border-radius: 20px;
    padding: 18px;
  }

  .case-hero-copy h1 {
    font-size: 2.9rem;
  }

  .case-hero-copy p {
    font-size: 1rem;
  }

  .case-nav a,
  .case-hero .btn {
    inline-size: 100%;
    justify-content: center;
  }

  .case-fact-list li {
    display: grid;
  }
}