/* Case Studies page (same design as the original Bubble version) */

.cs-intro{padding:72px 0 0}
.cs-intro h1{font-size:clamp(34px,5vw,56px);line-height:1.1;font-weight:700;letter-spacing:-.02em;margin:22px 0 16px;max-width:22ch}
.cs-note{font-size:14px;color:var(--muted);margin-top:10px}

/* Timeline */
.cs-tl-card{margin-top:44px;background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:26px 28px 18px}
.cs-tl-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:14px;margin-bottom:20px}
.cs-tl-head h2{font-size:20px;font-weight:600;letter-spacing:-.01em}
.cs-tl-head p{font-size:14px;color:var(--muted);margin-top:2px}
.cs-legend{display:flex;gap:18px;font-size:14px;color:var(--muted)}
.cs-legend span{display:inline-flex;align-items:center;gap:7px}
.cs-legend i{width:11px;height:11px;border-radius:50%;display:inline-block}
.cs-tl-scroll{overflow-x:auto;padding-bottom:6px}
.cs-tl{position:relative;min-width:720px}
.cs-tl-axis{position:absolute;left:0;right:0;bottom:22px;border-top:1px solid var(--line)}
.cs-tick{position:absolute;bottom:0;font-size:12px;color:var(--muted);transform:translateX(-50%)}
.cs-tick::before{content:"";position:absolute;left:50%;top:-24px;height:6px;border-left:1px solid var(--line)}
.cs-dot{position:absolute;width:18px;height:18px;border-radius:50%;border:2px solid var(--paper);cursor:pointer;padding:0;
  transform:translate(-50%,0);transition:transform .15s ease,opacity .2s ease}
.cs-dot:hover,.cs-dot:focus-visible{transform:translate(-50%,0) scale(1.35);z-index:3}
.cs-dot.dim{opacity:.18}
.o-success{background:var(--g700)}.o-mixed{background:var(--mixed)}.o-failure{background:var(--fail)}
.cs-tip{position:absolute;z-index:5;pointer-events:none;background:var(--ink);color:#fff;font-size:13px;line-height:1.35;
  padding:8px 11px;border-radius:8px;white-space:nowrap;opacity:0;transform:translate(-50%,-6px);transition:opacity .12s}
.cs-tip small{display:block;opacity:.7;font-size:12px}
.cs-tip.on{opacity:1}

/* Controls */
.cs-controls{position:sticky;top:var(--header-h);z-index:20;background:var(--bg);padding:20px 0 14px;margin-top:28px;border-bottom:1px solid var(--line)}
.cs-ctl-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cs-search{flex:1 1 220px;position:relative}
.cs-search input{width:100%;height:46px;border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:0 18px 0 44px;font-size:15px}
.cs-search input:focus{outline:none;border-color:var(--g700);box-shadow:0 0 0 3px var(--g100)}
.cs-search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.cs-seg{display:inline-flex;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:4px;gap:2px}
.cs-seg button{border:0;background:none;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;cursor:pointer;color:var(--muted)}
.cs-seg button[aria-pressed="true"]{background:var(--g900);color:#fff}
.cs-select{height:46px;border:1px solid var(--line);background:var(--paper);border-radius:999px;padding:0 38px 0 16px;font-size:14px;cursor:pointer;
  appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235B635D' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center}
.cs-meta{display:flex;justify-content:space-between;align-items:center;margin-top:12px;font-size:14px;color:var(--muted);gap:12px;flex-wrap:wrap}

/* Grid */
.cs-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:20px;padding:28px 0 96px}
.cs-case{display:flex;flex-direction:column;text-align:left;background:var(--paper);border:1px solid var(--line);border-radius:18px;
  padding:24px 24px 20px;cursor:pointer;position:relative;overflow:hidden;transition:border-color .15s}
.cs-case:hover{border-color:#B9C9B7}
.cs-case::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px}
.cs-case.o-s::before{background:var(--g700)}.cs-case.o-m::before{background:var(--mixed)}.cs-case.o-f::before{background:var(--fail)}
.cs-case-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:14px}
.cs-badge{font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:999px;white-space:nowrap}
.b-s{background:var(--g100);color:var(--g900)}.b-m{background:var(--mixed-bg);color:#7A5409}.b-f{background:var(--fail-bg);color:#8E2A21}
.cs-year{font-size:13px;color:var(--muted)}
.cs-case h3{font-size:20px;line-height:1.25;font-weight:600;letter-spacing:-.01em}
.cs-loc{font-size:14px;color:var(--muted);margin-top:4px}
.cs-sum{font-size:14.5px;color:var(--ink2);margin:14px 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cs-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.cs-tag{font-size:12.5px;color:var(--g900);background:var(--g50);border:1px solid var(--g100);padding:3px 10px;border-radius:999px}
.cs-case-foot{display:flex;justify-content:space-between;align-items:center;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13.5px}
.cs-has-report{color:var(--g700);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.cs-no-report{color:var(--muted)}
.cs-open{color:var(--ink);font-weight:600}
.cs-empty{grid-column:1/-1;text-align:center;padding:60px 20px;background:var(--paper);border:1px dashed var(--line);border-radius:18px}
.cs-empty h3{font-size:20px;margin-bottom:6px}
.cs-empty p{color:var(--muted);margin-bottom:14px}

/* Drawer */
.cs-scrim{position:fixed;inset:0;background:rgba(20,30,22,.35);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);z-index:400;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
.cs-scrim.on{opacity:1;visibility:visible}
.cs-drawer{position:fixed;top:0;right:0;height:100%;height:100dvh;width:min(760px,100%);background:var(--bg);z-index:401;
  transform:translateX(100%);visibility:hidden;transition:transform .28s cubic-bezier(.2,.7,.2,1),visibility .28s;display:flex;flex-direction:column}
.cs-drawer.on{transform:none;visibility:visible;box-shadow:-20px 0 60px rgba(15,40,20,.15)}
.cs-d-head{padding:22px 32px 0;background:var(--paper);border-bottom:1px solid var(--line)}
.cs-d-bar{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:18px}
.cs-d-nav{display:flex;gap:6px}
.cs-iconbtn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--paper);display:inline-grid;place-items:center;cursor:pointer}
.cs-iconbtn:hover{background:var(--g50)}
.cs-iconbtn:disabled{opacity:.35;cursor:default}
.cs-d-title{font-size:clamp(26px,3.4vw,34px);line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:10px 0 6px}
.cs-d-sub{color:var(--muted);font-size:15px}
.cs-tabs{display:flex;gap:4px;margin-top:20px;overflow-x:auto;scrollbar-width:none}
.cs-tabs::-webkit-scrollbar{display:none}
.cs-tabs button{border:0;background:none;padding:12px 14px;font-size:15px;font-weight:500;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}
.cs-tabs button[aria-selected="true"]{color:var(--g900);border-bottom-color:var(--g900);font-weight:600}
.cs-d-body{overflow-y:auto;overscroll-behavior:contain;flex:1;padding:28px 32px 60px}
.cs-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:30px}
.cs-fact{background:var(--paper);padding:14px 16px}
.cs-fact.wide{grid-column:1/-1}
.cs-fact dt{font-size:12.5px;color:var(--muted);margin-bottom:3px}
.cs-fact dd{font-size:14.5px}
.cs-block{margin-bottom:26px;max-width:68ch}
.cs-block h4{font-size:17px;font-weight:600;margin-bottom:6px}
.cs-block p{font-size:15.5px;color:#2E3530}
.cs-versus{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:26px}
.cs-vbox{border-radius:14px;padding:18px 18px 20px}
.cs-vbox h4{font-size:15px;font-weight:600;margin-bottom:8px}
.cs-vbox p{font-size:15px}
.cs-v-pos{background:var(--g50);border:1px solid var(--g100)}
.cs-v-neg{background:#FBF3F1;border:1px solid #F0DAD6}
.cs-callout{background:var(--g900);color:#fff;border-radius:16px;padding:22px 24px;margin-bottom:26px}
.cs-callout h4{font-size:15px;font-weight:600;opacity:.8;margin-bottom:6px}
.cs-callout p{font-size:17px;line-height:1.5}
.cs-korea{border:1px solid var(--line);background:var(--paper);border-radius:14px;padding:18px 20px;margin-bottom:26px}
.cs-korea h4{font-size:15px;font-weight:600;margin-bottom:6px}
.cs-report h3{font-size:19px;font-weight:600;margin:28px 0 8px;letter-spacing:-.01em}
.cs-report h3:first-child{margin-top:0}
.cs-report p{font-size:16px;line-height:1.7;color:#2E3530;max-width:68ch;margin-bottom:12px}
.cs-noreport{background:var(--paper);border:1px dashed #C9D3C6;border-radius:16px;padding:32px;text-align:center}
.cs-noreport h4{font-size:18px;margin-bottom:6px}
.cs-noreport p{color:var(--muted);max-width:44ch;margin:0 auto 16px}
body.drawer-open{overflow:hidden}

@media (max-width:720px){
  .cs-intro{padding-top:44px}
  .cs-tl-card{padding:20px 16px 12px;border-radius:16px}
  .cs-grid{grid-template-columns:1fr}
  .cs-seg{width:100%}.cs-seg button{flex:1;padding:8px 6px}
  .cs-select{flex:1 1 45%}
  .cs-controls{position:static}
  .cs-d-head{padding:18px 18px 0}.cs-d-body{padding:22px 18px 50px}
  .cs-facts,.cs-versus{grid-template-columns:1fr}
}
.cs-note:empty{display:none}