/* ═══════════════════════════════════════════════════════
   MEDI KOREA — Cases CSS
   Consulting Report + Magazine 느낌
   White · Pretendard · 선과 여백 중심
   ═══════════════════════════════════════════════════════ */

/* ── Cases Hero ── */
.cases-hero {
  padding: calc(var(--hh) + 64px) 0 64px;
  border-bottom: 1px solid var(--line);
  background: var(--bg-warm);
}
.cases-hero-inner {
  width: min(calc(100% - 48px), var(--max-w));
  margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.cases-eyebrow {
  font-size: 10px; font-weight: 700; letter-spacing: .22em;
  text-transform: uppercase; color: var(--blue);
  display: flex; align-items: center; gap: 8px; margin-bottom: 18px;
}
.cases-eyebrow::before { content: ''; width: 18px; height: 1.5px; background: var(--blue); }
.cases-hero-title {
  font-size: clamp(28px, 3.8vw, 52px); font-weight: 800;
  letter-spacing: -.04em; line-height: 1.15;
  color: var(--text); margin-bottom: 18px;
}
.cases-hero-title em { font-style: normal; color: var(--blue); }
.cases-hero-desc { font-size: 15px; color: var(--text-sub); line-height: 1.85; }
.cases-hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.cases-stat {
  padding: 28px 20px; border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 6px;
}
.cases-stat:last-child { border-right: none; }
.cases-stat-num {
  font-size: clamp(22px, 2.5vw, 32px); font-weight: 800;
  letter-spacing: -.04em; color: var(--text); line-height: 1;
}
.cases-stat-num small { font-size: .5em; font-weight: 600; color: var(--text-sub); }
.cases-stat-label { font-size: 12px; color: var(--text-dim); }

/* ── Filter ── */
.cases-filter {
  border-bottom: 1px solid var(--line); background: var(--bg);
  position: sticky; top: var(--hh); z-index: 90;
}
.cases-filter-inner {
  width: min(calc(100% - 48px), var(--max-w));
  margin: 0 auto; display: flex;
  overflow-x: auto; scrollbar-width: none; gap: 8px; padding: 14px 0;
}
.cases-filter-inner::-webkit-scrollbar { display: none; }
.cases-filter-btn {
  flex-shrink: 0; padding: 6px 16px;
  font-size: 12.5px; font-weight: 600; letter-spacing: -.005em;
  color: var(--text-sub); border: 1px solid var(--line-md);
  border-radius: 999px; white-space: nowrap;
  transition: all var(--fast);
}
.cases-filter-btn:hover { color: var(--text); border-color: var(--line); }
.cases-filter-btn.active {
  background: var(--text); color: #fff; border-color: var(--text);
}

/* ── Cases Body ── */
.cases-body { padding: 64px 0 100px; }
.cases-container { width: min(calc(100% - 48px), var(--max-w)); margin: 0 auto; }

/* ── Case Grid (목록) ── */
.cases-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0; margin-bottom: 56px;
  border: 1px solid var(--line);
}
.case-card {
  padding: 36px 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 0;
  transition: background var(--fast);
}
.cases-grid .case-card:nth-child(3n) { border-right: none; }
.cases-grid .case-card:nth-last-child(-n+3) { border-bottom: none; }
.case-card:hover { background: var(--bg-warm); }
.case-card-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 20px;
}
.case-card-type {
  font-size: 10px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--blue);
}
.case-card-num {
  font-size: 10px; font-weight: 600; letter-spacing: .08em;
  color: var(--text-dim);
}
.case-card-body { flex: 1; margin-bottom: 24px; }
.case-card-title {
  font-size: clamp(15px, 1.4vw, 18px); font-weight: 750;
  letter-spacing: -.025em; line-height: 1.38;
  color: var(--text); margin-bottom: 16px;
}
.case-card-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.case-tag {
  padding: 3px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600;
  background: var(--bg-sub); color: var(--text-sub);
  border: 1px solid var(--line-md);
}
.case-card-foot { border-top: 1px solid var(--line); padding-top: 18px; }
.case-card-link {
  font-size: 12.5px; font-weight: 700; color: var(--blue);
  display: inline-flex; align-items: center; gap: 5px;
  letter-spacing: .04em; text-transform: uppercase;
  transition: gap var(--fast);
}
.case-card:hover .case-card-link { gap: 9px; }

/* Case Note */
.case-note {
  border: 1px solid var(--line); border-radius: 8px;
  padding: 24px 28px; background: var(--bg-warm);
}
.case-note-label {
  font-size: 10px; font-weight: 700; letter-spacing: .15em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 8px;
}
.case-note-text { font-size: 13px; color: var(--text-sub); line-height: 1.8; }

.cases-empty { padding: 80px 0; text-align: center; color: var(--text-sub); }
.cases-empty a { color: var(--blue); font-weight: 600; }

/* ══════════════════════════════════════
   CASE DETAIL PAGE
══════════════════════════════════════ */

/* Header */
.case-header {
  padding: calc(var(--hh) + 52px) 0 52px;
  border-bottom: 1.5px solid var(--text);
  background: var(--bg-warm);
}
.case-header-inner {
  width: min(calc(100% - 48px), 860px);
  margin: 0 auto;
}
.case-header-meta {
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 20px;
}
.case-header-sep { color: var(--text-dim); font-weight: 300; }
.case-header-tags { color: var(--text-dim); }
.case-header-title {
  font-size: clamp(28px, 4.5vw, 56px); font-weight: 800;
  letter-spacing: -.045em; line-height: 1.15;
  color: var(--text); margin-bottom: 24px;
}
.case-header-by {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; color: var(--text-dim); font-weight: 500;
}
.case-sep {
  display: inline-block; width: 2px; height: 2px;
  background: var(--text-dim); border-radius: 50%;
}

/* Layout */
.case-main { padding: 72px 0 100px; }
.case-layout {
  width: min(calc(100% - 48px), 1040px);
  margin: 0 auto;
  display: grid; grid-template-columns: 1fr 260px;
  gap: 80px; align-items: start;
}
.case-content {}
.case-sidebar {}

/* Section */
.case-section {
  padding: 48px 0;
  border-bottom: 1px solid var(--line);
}
.case-section:first-child { padding-top: 0; }
.case-section--story { background: var(--bg-warm); margin: 0 -32px; padding: 48px 32px; border-radius: 4px; border: none; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.case-section-label {
  font-size: 10px; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; color: var(--blue);
  margin-bottom: 10px; display: flex; align-items: center; gap: 6px;
}
.case-section-label::before { content: ''; width: 14px; height: 1.5px; background: var(--blue); }
.case-section-title {
  font-size: clamp(18px, 1.8vw, 24px); font-weight: 750;
  letter-spacing: -.03em; line-height: 1.3;
  color: var(--text); margin-bottom: 16px;
}
.case-text {
  font-size: 16px; color: var(--text-sub); line-height: 1.85;
  margin-bottom: 20px;
}

/* Lists */
.case-list {
  list-style: none; display: flex; flex-direction: column; gap: 0;
  border-top: 1px solid var(--line);
}
.case-list li {
  padding: 12px 0; border-bottom: 1px solid var(--line);
  font-size: 14px; color: var(--text-sub);
  display: flex; align-items: flex-start; gap: 10px;
}
.case-list li::before {
  content: ''; display: block;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--blue); flex-shrink: 0; margin-top: 8px;
}

/* Flow Diagram */
.case-flow {
  display: flex; flex-direction: column; align-items: flex-start;
  gap: 0; border-left: 2px solid var(--line); padding-left: 20px; margin-top: 4px;
}
.case-flow-step {
  font-size: 13.5px; font-weight: 600; color: var(--text);
  padding: 10px 0; position: relative;
}
.case-flow-step::before {
  content: ''; position: absolute; left: -26px; top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--line-md);
}
.case-flow-arr {
  font-size: 12px; color: var(--text-dim);
  padding: 0 0 0 4px; line-height: 1;
}

/* Ordered List */
.case-ordered-list {
  list-style: none; display: flex; flex-direction: column; gap: 0;
  border-top: 1px solid var(--line);
}
.case-ordered-list li {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 14px 0; border-bottom: 1px solid var(--line);
  font-size: 14px; color: var(--text-sub); line-height: 1.6;
}
.case-ordered-list li:last-child { border-bottom: none; }
.case-ol-num {
  font-size: 11px; font-weight: 700; color: var(--blue);
  flex-shrink: 0; min-width: 24px; padding-top: 1px;
}

/* KPI Grid */
.case-kpi-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--line); border-radius: 6px; overflow: hidden;
  margin-bottom: 16px;
}
.case-kpi-item {
  display: flex; gap: 14px; align-items: center;
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.case-kpi-grid .case-kpi-item:nth-child(2n) { border-right: none; }
.case-kpi-grid .case-kpi-item:nth-last-child(-n+2) { border-bottom: none; }
.case-kpi-num { font-size: 11px; font-weight: 700; color: var(--blue); flex-shrink: 0; }
.case-kpi-text { font-size: 13.5px; color: var(--text); font-weight: 500; }
.case-kpi-note { font-size: 12px; color: var(--text-dim); line-height: 1.6; }

/* Closing Quote */
.case-closing {
  padding: 52px 0 40px;
}
.case-closing-quote {
  font-size: clamp(20px, 2.4vw, 30px); font-weight: 800;
  letter-spacing: -.035em; line-height: 1.4;
  color: var(--text); font-style: normal;
  border-left: 3px solid var(--blue);
  padding-left: 24px;
}

/* Prev / Next */
.case-adjacent {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 0; border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
}
.case-adj-item {
  display: flex; flex-direction: column; gap: 5px;
  padding: 24px 0; transition: opacity var(--fast);
}
.case-adj-item:hover { opacity: .7; }
.case-adj-prev { padding-right: 24px; border-right: 1px solid var(--line); }
.case-adj-next { padding-left: 24px; text-align: right; }
.case-adj-dir {
  font-size: 10px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue);
}
.case-adj-type { font-size: 10px; color: var(--text-dim); }
.case-adj-title {
  font-size: 14px; font-weight: 650; color: var(--text); line-height: 1.4;
}

/* Case Note Box */
.case-note-box {
  border: 1px solid var(--line); border-radius: 6px;
  padding: 20px 24px; background: var(--bg-warm);
}
.case-note-box .case-note-label {
  font-size: 10px; font-weight: 700; letter-spacing: .15em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 6px;
}
.case-note-box .case-note-text {
  font-size: 12.5px; color: var(--text-sub); line-height: 1.75;
}

/* Sidebar */
.case-sidebar-sticky {
  position: sticky; top: calc(var(--hh) + 32px);
  display: flex; flex-direction: column; gap: 0;
}
.case-sidebar-block {
  padding-bottom: 24px; margin-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.case-sidebar-label {
  font-size: 10px; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 8px;
}
.case-sidebar-val {
  font-size: 15px; font-weight: 700; color: var(--text);
}
.case-sidebar-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.case-sidebar-other {
  display: flex; flex-direction: column; gap: 3px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
  transition: opacity var(--fast);
}
.case-sidebar-other:last-child { border-bottom: none; }
.case-sidebar-other:hover { opacity: .7; }
.case-sidebar-other-type {
  font-size: 9.5px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue);
}
.case-sidebar-other-title {
  font-size: 12.5px; font-weight: 600; color: var(--text);
  line-height: 1.4;
}
.case-sidebar-inquiry {
  padding: 22px; background: var(--dark); border-radius: 8px;
}
.case-sidebar-inquiry-title {
  font-size: 13px; font-weight: 750; color: #fff; margin-bottom: 6px;
}
.case-sidebar-inquiry-desc {
  font-size: 12px; color: rgba(255,255,255,.5); line-height: 1.7; margin-bottom: 16px;
}
.case-sidebar-cta {
  display: block; padding: 10px 16px; text-align: center;
  border-radius: 7px; font-size: 13px; font-weight: 700;
  background: #fff; color: var(--text); transition: all var(--fast);
}
.case-sidebar-cta:hover { background: var(--blue); color: #fff; }

/* Responsive */
@media (max-width: 1024px) {
  .cases-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .cases-hero-stats { grid-template-columns: repeat(3, 1fr); }
  .case-layout { grid-template-columns: 1fr; gap: 48px; width: calc(100% - 48px); }
  .case-sidebar { order: -1; }
  .case-sidebar-sticky { position: relative; top: 0; flex-direction: row; flex-wrap: wrap; gap: 20px; }
  .case-sidebar-block { border-bottom: none; margin-bottom: 0; padding-bottom: 0; flex: 1 1 200px; }
  .case-sidebar-inquiry { flex: 1 1 100%; }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid .case-card:nth-child(3n) { border-right: 1px solid var(--line); }
  .cases-grid .case-card:nth-child(2n) { border-right: none; }
  .cases-grid .case-card:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); }
  .cases-grid .case-card:nth-last-child(-n+2) { border-bottom: none; }
}
@media (max-width: 768px) {
  .cases-container, .cases-filter-inner { width: calc(100% - 32px); }
  .cases-hero-inner { width: calc(100% - 32px); }
  .case-kpi-grid { grid-template-columns: 1fr; }
  .case-kpi-item { border-right: none; }
  .case-kpi-item:last-child { border-bottom: none; }
  .case-adjacent { grid-template-columns: 1fr; }
  .case-adj-prev { border-right: none; border-bottom: 1px solid var(--line); }
  .case-adj-next { text-align: left; padding-left: 0; }
  .case-section--story { margin: 0; padding: 32px 0; }
}
@media (max-width: 640px) {
  .cases-grid { grid-template-columns: 1fr; }
  .case-card { border-right: none; }
  .case-card:nth-child(n) { border-bottom: 1px solid var(--line); }
  .case-card:last-child { border-bottom: none; }
  .cases-hero-stats { grid-template-columns: 1fr 1fr 1fr; }
  .cases-stat { padding: 20px 12px; }
}

/* ── Cases 반응형 QA 추가 ── */

/* 1440px — 와이드 */
@media (min-width: 1440px) {
  .cases-hero-inner,
  .cases-container,
  .case-header-inner,
  .case-layout { max-width: 1380px; }
  .case-layout { grid-template-columns: 1fr 280px; }
}

/* 1280px — 일반 PC */
@media (max-width: 1280px) {
  .cases-grid { grid-template-columns: repeat(3,1fr); }
  .case-layout { gap: 56px; }
}

/* 430px — iPhone 15 Pro Max */
@media (max-width: 430px) {
  .cases-hero { padding-top: calc(var(--hh) + 36px); padding-bottom: 36px; }
  .cases-hero-title { font-size: clamp(24px, 7vw, 32px); }
  .cases-hero-stats { grid-template-columns: repeat(3,1fr); }
  .cases-stat { padding: 16px 10px; }
  .cases-stat-num { font-size: clamp(18px,5vw,24px); }
  .cases-filter-inner { padding: 10px 0; gap: 6px; }
  .cases-filter-btn { padding: 5px 12px; font-size: 11.5px; }
  .case-card { padding: 24px 20px; }
  .case-card-title { font-size: clamp(14px,4.5vw,17px); }
  .case-header-title { font-size: clamp(24px,7vw,36px); }
  .case-closing-quote { font-size: clamp(17px,5vw,22px); }
  .case-kpi-grid { grid-template-columns: 1fr; }
}

/* 390px — iPhone 14 Pro */
@media (max-width: 390px) {
  .cases-hero-inner,
  .cases-container,
  .cases-filter-inner { width: calc(100% - 28px); }
  .case-header-inner { width: calc(100% - 28px); }
  .case-layout { width: calc(100% - 28px); }
  .cases-stat-label { font-size: 10px; }
}

/* 360px — 최소 Android */
@media (max-width: 360px) {
  .cases-hero-stats { grid-template-columns: 1fr 1fr 1fr; }
  .cases-stat { padding: 12px 8px; }
  .cases-stat-num { font-size: 18px; }
  .case-card { padding: 20px 16px; }
  .case-adjacent { grid-template-columns: 1fr; }
  .case-adj-prev { border-right: none; border-bottom: 1px solid var(--line); }
  .case-adj-next { text-align: left; padding-left: 0; }
}