/* ===========================
   NSCore 성과 사례 페이지
   =========================== */
.skip-link {
  position: fixed; top: 8px; left: 12px; z-index: 3000;
  padding: 10px 14px; border-radius: 8px;
  background: var(--blue-dark); color: var(--white);
  transform: translateY(-150%); transition: transform 0.2s ease;
}
.skip-link:focus { transform: translateY(0); }
.cases-page { background: var(--gray-bg); }
.cases-page #header { position: fixed; }

.cases-hero {
  min-height: 560px;
  padding: calc(var(--header-h) + 88px) 24px 92px;
  position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  background:
    radial-gradient(circle at 76% 20%, rgba(74,144,226,0.32), transparent 28%),
    radial-gradient(circle at 22% 86%, rgba(37,99,235,0.26), transparent 32%),
    linear-gradient(135deg, #071d4b 0%, #0d2b6e 48%, #174fa8 100%);
}
.cases-hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(115deg, rgba(255,255,255,0.05), transparent 38%);
}
.cases-hero-inner { position: relative; z-index: 2; text-align: center; max-width: 820px; }
.cases-eyebrow {
  font-family: var(--font-en); font-size: 12px; font-weight: 700;
  letter-spacing: 3px; color: #9bc0ff; margin-bottom: 18px;
}
.cases-hero h1 {
  font-size: clamp(38px, 6vw, 68px); line-height: 1.2; letter-spacing: -2.6px;
  font-weight: 800; margin-bottom: 22px;
}
.cases-hero h1 span { color: #79adff; }
.cases-hero-desc { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.76); word-break: keep-all; }
.cases-hero-actions { display: flex; justify-content: center; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.cases-hero-actions a {
  min-height: 50px; padding: 0 22px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 14px; font-weight: 700; transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.cases-hero-actions a:hover { transform: translateY(-2px); }
.cases-hero-actions a:focus-visible { outline: 3px solid rgba(255,255,255,0.5); outline-offset: 3px; }
.cases-hero-primary { background: var(--white); color: var(--blue-dark); }
.cases-hero-secondary { border: 1px solid rgba(255,255,255,0.42); color: var(--white); background: rgba(255,255,255,0.06); }
.cases-hero-secondary:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.68); }
.cases-hero-grid {
  position: absolute; inset: 0; opacity: 0.16;
  background-image:
    linear-gradient(rgba(255,255,255,0.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.18) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, transparent, #000 28%, #000 74%, transparent);
}

.cases-gallery-section { padding: 105px 0 118px; scroll-margin-top: var(--header-h); }
.cases-container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.cases-section-head { text-align: center; margin-bottom: 58px; }
.cases-section-head h2 { font-size: clamp(30px, 4.6vw, 48px); color: var(--blue-dark); margin: 8px 0 14px; letter-spacing: -1.5px; }
.cases-section-head > p:last-child { font-size: 16px; color: var(--gray-text); word-break: keep-all; }

.cases-loading {
  min-height: 240px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px;
  color: var(--gray-text); font-size: 14px;
}
.cases-loading[hidden], .cases-empty[hidden] { display: none; }
.cases-loading-mark {
  width: 36px; height: 36px; border-radius: 50%;
  border: 3px solid var(--blue-light); border-top-color: var(--blue-mid);
  animation: casesSpin 0.8s linear infinite;
}
@keyframes casesSpin { to { transform: rotate(360deg); } }
.cases-list { display: flex; flex-direction: column; gap: 42px; }
.case-article {
  background: var(--white); border-radius: 18px; overflow: hidden;
  box-shadow: 0 12px 40px rgba(13,43,110,0.09);
}
.case-article-head {
  min-height: 165px; padding: 32px 36px;
  display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 24px;
  position: relative; border-bottom: 1px solid var(--gray-bd);
}
.case-article-head.has-cover { grid-template-columns: 210px minmax(0, 1fr) auto; }
.case-cover { width: 210px; aspect-ratio: 4 / 3; border-radius: 11px; overflow: hidden; background: var(--gray-bg); }
.case-cover img { width: 100%; height: 100%; object-fit: cover; }
.case-article-copy { min-width: 0; }
.case-article-kicker {
  font-family: var(--font-en); font-size: 11px; font-weight: 700;
  color: var(--blue-mid); letter-spacing: 2px; margin-bottom: 9px;
}
.case-article-copy h3 { font-size: clamp(22px, 3vw, 32px); color: var(--blue-dark); line-height: 1.35; letter-spacing: -1px; word-break: keep-all; }
.case-article-desc { margin-top: 10px; font-size: 14px; line-height: 1.7; color: var(--gray-text); word-break: keep-all; }
.case-article-number { font-family: var(--font-en); font-size: 40px; font-weight: 800; color: #e4eaf3; }

.case-proof-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 22px; padding: 32px 36px; align-items: stretch; }
.case-proof-grid.is-single { grid-template-columns: 1fr; }
.case-proof-media, .case-solution { min-width: 0; }
.case-zone-label {
  display: inline-block; margin-bottom: 12px; padding: 5px 10px; border-radius: 6px;
  font-size: 12px; font-weight: 700; color: var(--blue-mid); background: #eef4ff;
}
.case-proof-media img { width: 100%; height: auto; border-radius: 11px; border: 1px solid var(--gray-bd); background: var(--gray-bg); }
.case-solution { padding: 22px; border-radius: 12px; background: #f5f8ff; border: 1px solid #dfe8fb; }
.case-solution-text { white-space: pre-wrap; word-break: keep-all; color: var(--dark); line-height: 1.85; }
.case-solution-text.size-small { font-size: 14px; }
.case-solution-text.size-medium { font-size: 16px; }
.case-solution-text.size-large { font-size: 19px; font-weight: 500; }

.case-infographic { border-top: 1px solid var(--gray-bd); background: var(--white); }
.case-infographic figcaption { padding: 22px 36px 18px; display: flex; flex-direction: column; gap: 5px; }
.case-infographic figcaption span { font-family: var(--font-en); font-size: 10px; font-weight: 700; letter-spacing: 2px; color: var(--accent); }
.case-infographic figcaption strong { font-size: 20px; color: var(--blue-dark); }
.case-infographic > img { width: 100%; height: auto; }
.case-article-action { padding: 24px 36px 30px; text-align: center; background: var(--white); }
.case-article-action a {
  min-height: 48px; padding: 0 20px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--blue-mid); color: var(--white); font-size: 14px; font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.case-article-action a:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(37,99,235,0.24); }
.case-article-action a:focus-visible { outline: 3px solid rgba(37,99,235,0.28); outline-offset: 3px; }
.image-unavailable { min-height: 160px; display: grid; place-items: center; background: var(--gray-bg); }
.image-unavailable img { display: none; }
.image-unavailable::after { content: '이미지를 불러오지 못했습니다'; color: var(--gray-text); font-size: 13px; }
.case-infographic.image-unavailable figcaption { justify-self: stretch; width: 100%; }

.cases-empty { padding: 60px 24px; border-radius: 16px; text-align: center; background: var(--white); box-shadow: var(--shadow); }
.cases-empty strong { display: block; font-size: 20px; color: var(--blue-dark); margin-bottom: 10px; }
.cases-empty p { font-size: 14px; color: var(--gray-text); margin-bottom: 18px; }
.cases-empty a { color: var(--blue-mid); font-size: 14px; font-weight: 700; }

.cases-conversion {
  padding: 98px 24px; text-align: center; color: var(--white);
  background:
    radial-gradient(circle at 16% 30%, rgba(74,144,226,0.25), transparent 26%),
    linear-gradient(135deg, #0a245d, #123f91);
}
.cases-conversion-inner { max-width: 720px; margin: 0 auto; }
.cases-conversion-kicker { font-family: var(--font-en); font-size: 11px; font-weight: 700; letter-spacing: 2.5px; color: #9bc0ff; margin-bottom: 14px; }
.cases-conversion h2 { font-size: clamp(32px, 5vw, 50px); line-height: 1.3; letter-spacing: -1.8px; margin-bottom: 18px; }
.cases-conversion p:not(.cases-conversion-kicker) { font-size: 16px; line-height: 1.8; color: rgba(255,255,255,0.72); }
.cases-conversion-btn {
  min-height: 54px; padding: 0 24px; margin-top: 28px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  background: var(--white); color: var(--blue-dark); font-size: 15px; font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cases-conversion-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.2); }
.cases-conversion-btn:focus-visible { outline: 3px solid rgba(255,255,255,0.5); outline-offset: 3px; }

@media (max-width: 820px) {
  .case-article-head.has-cover { grid-template-columns: 150px minmax(0, 1fr) auto; }
  .case-cover { width: 150px; }
  .case-proof-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .cases-hero { min-height: 540px; padding: calc(var(--header-h) + 62px) 20px 68px; }
  .cases-hero h1 { font-size: 38px; letter-spacing: -1.8px; }
  .cases-hero-desc { font-size: 15px; }
  .cases-hero-desc br { display: none; }
  .cases-hero-actions { flex-direction: column; align-items: stretch; }
  .cases-hero-actions a { width: 100%; }
  .cases-gallery-section { padding: 76px 0 84px; }
  .cases-container { padding: 0 16px; }
  .cases-section-head { margin-bottom: 38px; }
  .cases-section-head > p:last-child { font-size: 14px; line-height: 1.7; }
  .cases-list { gap: 26px; }
  .case-article { border-radius: 14px; }
  .case-article-head,
  .case-article-head.has-cover { grid-template-columns: minmax(0, 1fr) auto; padding: 22px 20px; }
  .case-cover { grid-column: 1 / -1; width: 100%; aspect-ratio: 16 / 9; }
  .case-article-number { font-size: 29px; }
  .case-proof-grid { padding: 22px 20px; gap: 18px; }
  .case-solution { padding: 18px; }
  .case-solution-text.size-large { font-size: 17px; }
  .case-infographic figcaption { padding: 18px 20px 14px; }
  .case-infographic figcaption strong { font-size: 17px; }
  .case-article-action { padding: 20px; }
  .case-article-action a { width: 100%; }
  .cases-conversion { padding: 76px 20px; }
  .cases-conversion p:not(.cases-conversion-kicker) br { display: none; }
  .cases-conversion-btn { width: 100%; padding: 0 16px; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .cases-loading-mark { animation: none; }
  .cases-hero-actions a,
  .case-article-action a,
  .cases-conversion-btn { transition: none; }
}