:root{
  --bg:#f5f7fa;
  --panel:#ffffff;
  --text:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --sidebar:#111827;
  --sidebar-text:#dbeafe;
  --active:#6f3136;
  --accent:#ef4d2f;
  --good:#15803d;
  --warn:#b45309;
  --bad:#b91c1c;
  --blue:#1d4ed8;
  --purple:#7e22ce;
  --radius:18px;
}

*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg)}
button,input,select{font:inherit}

.app-shell{min-height:100vh;display:flex}
.sidebar{
  position:fixed;inset:0 auto 0 0;width:280px;background:var(--sidebar);color:white;
  padding:34px 24px 24px;display:flex;flex-direction:column;z-index:30
}
.brand{padding:4px 20px 28px;border-bottom:1px solid rgba(255,255,255,.10)}
.brand-title{font-size:34px;font-weight:800;letter-spacing:-1px}
.brand-subtitle{margin-top:10px;color:#a8c8ff;font-size:18px;line-height:1.5}
.nav{padding-top:28px;display:flex;flex-direction:column;gap:10px}
.nav-item{
  width:100%;border:0;background:transparent;color:#dbeafe;text-align:left;
  padding:18px 20px;border-radius:16px;font-size:18px;cursor:pointer
}
.nav-item:hover{background:rgba(255,255,255,.07)}
.nav-item.active{background:var(--active);color:white}
.sidebar-footer{
  margin-top:auto;border-top:1px solid rgba(255,255,255,.10);padding:20px;
  color:#dbeafe;display:flex;align-items:center;gap:10px
}
.dot{display:inline-block;width:11px;height:11px;border-radius:50%;background:#10b981}

.main{margin-left:280px;width:calc(100% - 280px);min-height:100vh}
.topbar{
  background:white;padding:30px 38px 24px;display:flex;align-items:flex-end;justify-content:space-between;
  border-bottom:1px solid var(--line);gap:20px
}
.topbar h1{margin:0;font-size:38px;letter-spacing:-1px}
.page-subtitle{margin:7px 0 0;color:var(--muted)}
.toolbar{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-size:12px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
select,input{
  border:1px solid var(--line);border-radius:12px;background:white;padding:12px 14px;color:var(--text);outline:none
}
select:focus,input:focus{border-color:#9ca3af}
.btn{border:0;border-radius:12px;padding:12px 16px;cursor:pointer;font-weight:700}
.btn.secondary{background:#fff;border:1px solid var(--line);color:var(--text)}
.btn.secondary:hover{background:#f9fafb}
.menu-btn{display:none;border:0;background:transparent;font-size:24px;margin-right:8px}

.status-strip{
  padding:16px 38px;background:#f8fafc;border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;gap:20px;align-items:center;color:var(--muted);font-size:14px
}
.status-strip>div{display:flex;align-items:center;gap:10px}

.page{display:none;padding:28px 38px 40px}
.page.active{display:block}

.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 1px 2px rgba(0,0,0,.03);padding:22px
}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:18px}
.kpi{min-height:145px;display:flex;flex-direction:column;justify-content:center}
.kpi-label{color:var(--muted);font-size:14px;margin-bottom:8px}
.kpi strong{font-size:30px;letter-spacing:-.5px}
.kpi small{color:var(--muted);margin-top:8px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:14px}
.card-head h2{margin:0;font-size:20px}
.card-head p{margin:6px 0 0;color:var(--muted);font-size:14px}
.chart-box{height:320px;position:relative}
.chart-box.tall{height:390px}

.movement-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.movement-card{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fafafa}
.movement-card span{display:block;color:var(--muted);font-size:13px}
.movement-card strong{display:block;margin-top:5px;font-size:25px}
.movement-card.good strong{color:var(--good)}
.movement-card.bad strong{color:var(--bad)}
.movement-card.warn strong{color:var(--warn)}

.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px}
.table-wrap.large{max-height:620px}
table{width:100%;border-collapse:collapse;min-width:760px}
th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;white-space:nowrap}
th{position:sticky;top:0;background:#f9fafb;color:#4b5563;font-size:12px;text-transform:uppercase;letter-spacing:.04em;z-index:2}
tbody tr{cursor:default}
tbody tr:hover{background:#fafafa}
.clickable-row{cursor:pointer}
.table-footer{color:var(--muted);font-size:13px;margin-top:10px}
.filters-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.search-input{min-width:320px;flex:1}

.badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:700;background:#f3f4f6}
.badge.up,.badge.reactivated{background:#dcfce7;color:#166534}
.badge.down,.badge.newly-inactive{background:#fee2e2;color:#991b1b}
.badge.stay{background:#e0f2fe;color:#075985}
.badge.inactive{background:#f3f4f6;color:#6b7280}
.badge.first-seen{background:#fef3c7;color:#92400e}

.mini-kpi-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin-bottom:16px}
.mini-kpi{border:1px solid var(--line);border-radius:14px;padding:14px;background:#fafafa}
.mini-kpi span{display:block;color:var(--muted);font-size:12px}
.mini-kpi strong{display:block;margin-top:5px;font-size:18px}

.watch-tabs{display:flex;gap:10px;overflow:auto;margin-bottom:16px;padding-bottom:2px}
.watch-tab{
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer;white-space:nowrap
}
.watch-tab.active{background:#111827;color:white;border-color:#111827}

.transition-list{display:flex;flex-direction:column;gap:10px}
.transition-item{
  display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding:10px 0
}
.transition-item:last-child{border-bottom:0}
.matrix-table td,.matrix-table th{text-align:center}
.matrix-cell{font-weight:700;border-radius:8px}
.hidden{display:none!important}

.loading-overlay{
  position:fixed;inset:0;background:rgba(255,255,255,.78);backdrop-filter:blur(2px);
  display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px;z-index:1000
}
.loading-overlay.hidden{display:none}
.loader{width:34px;height:34px;border-radius:50%;border:4px solid #e5e7eb;border-top-color:#111827;animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.toast{
  position:fixed;right:24px;bottom:24px;background:#111827;color:#fff;padding:12px 16px;
  border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.2);opacity:0;pointer-events:none;transform:translateY(10px);
  transition:.2s;z-index:1200
}
.toast.show{opacity:1;transform:translateY(0)}

@media(max-width:1200px){
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .mini-kpi-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:900px){
  .sidebar{transform:translateX(-100%);transition:.2s}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;width:100%}
  .menu-btn{display:inline-block}
  .topbar{align-items:flex-start}
  .grid-2{grid-template-columns:1fr}
}
@media(max-width:640px){
  .topbar,.page,.status-strip{padding-left:18px;padding-right:18px}
  .topbar{flex-direction:column}
  .toolbar{width:100%}
  .field{flex:1}
  .field select{width:100%}
  .kpi-grid{grid-template-columns:1fr}
  .movement-grid{grid-template-columns:1fr 1fr}
  .mini-kpi-grid{grid-template-columns:1fr 1fr}
  .topbar h1{font-size:30px}
}


/* ===== Revision V2: readability, definitions, transition drilldown ===== */
.section-card{margin-bottom:18px}
.cluster-trend-box{height:380px;min-width:0}
#page-cluster .card{min-width:0}

.definition-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:20px
}
.definition-box{
  border:1px solid var(--line);
  border-radius:14px;
  background:#f8fafc;
  padding:16px 18px;
  color:#374151
}
.definition-box h3{
  margin:0 0 10px;
  font-size:15px;
  color:var(--text)
}
.definition-box p{margin:0;line-height:1.6;font-size:13px}
.definition-list{
  margin:0;
  padding-left:19px;
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:13px;
  line-height:1.55
}
.definition-footnote{
  margin-top:12px!important;
  color:var(--muted)
}
.compact-note{margin-top:16px}

.migration-top-grid{align-items:start}
.transition-list{
  display:flex;
  flex-direction:column;
  gap:8px;
  max-height:440px;
  overflow:auto;
  padding-right:4px
}
.transition-item{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border:1px solid var(--line);
  border-radius:12px;
  padding:12px 14px;
  background:#fff;
  color:var(--text);
  text-align:left
}
.transition-button{cursor:pointer}
.transition-button:hover{background:#f8fafc;border-color:#cbd5e1}
.transition-button.active{
  background:#111827;
  color:#fff;
  border-color:#111827
}
.transition-table-wrap{max-height:520px}
#transitionDetailCard{margin-top:18px}

.watch-stack{
  display:flex;
  flex-direction:column;
  gap:18px
}
.watch-section{min-width:0}
.watch-section-head{margin-bottom:14px}
.section-count{
  display:inline-flex;
  min-width:30px;
  justify-content:center;
  padding:3px 8px;
  margin-left:7px;
  border-radius:999px;
  font-size:12px;
  vertical-align:middle;
  background:#111827;
  color:#fff
}
.watch-table-wrap{max-height:390px}
.watch-definition{margin-top:14px}
.empty-cell{text-align:center!important;color:var(--muted);padding:28px!important}

@media(max-width:900px){
  .definition-grid{grid-template-columns:1fr}
  .cluster-trend-box{height:330px}
}


/* ===== Revision V3: compact clickable watchlist + store search ===== */
.watch-search-card{margin-bottom:18px}
.watch-search-row{display:flex;gap:12px}
.watch-search-row .search-input{width:100%;min-width:0}

.watch-search-results{
  margin-top:14px;
  display:flex;
  flex-direction:column;
  gap:10px
}
.search-empty{
  border:1px dashed #cbd5e1;
  border-radius:12px;
  padding:18px;
  color:var(--muted);
  background:#f8fafc
}
.watch-search-result{
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 16px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  background:#fff
}
.watch-search-main{min-width:260px}
.watch-search-main strong{font-size:15px}
.watch-search-meta{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  margin-top:8px;
  color:#4b5563;
  font-size:13px
}
.watch-search-categories{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:7px;
  flex-wrap:wrap
}
.watch-search-label{
  color:var(--muted);
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.04em
}
.watch-tag{
  border:1px solid #cbd5e1;
  border-radius:999px;
  padding:7px 10px;
  background:#f8fafc;
  color:#111827;
  cursor:pointer;
  font-size:12px;
  font-weight:700
}
.watch-tag:hover{background:#111827;color:#fff;border-color:#111827}
.watch-tag.neutral{cursor:default;color:#6b7280;background:#f3f4f6}
.watch-tag.neutral:hover{color:#6b7280;background:#f3f4f6;border-color:#cbd5e1}

.watch-category-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px
}
.watch-category-card{
  border:1px solid var(--line);
  border-radius:16px;
  background:#fff;
  color:var(--text);
  padding:16px;
  min-height:170px;
  text-align:left;
  cursor:pointer;
  display:flex;
  flex-direction:column;
  transition:.15s ease
}
.watch-category-card:hover{
  transform:translateY(-1px);
  border-color:#94a3b8;
  box-shadow:0 6px 18px rgba(15,23,42,.06)
}
.watch-category-card.active{
  background:#111827;
  color:#fff;
  border-color:#111827
}
.watch-category-top{
  display:flex;
  justify-content:space-between;
  gap:10px;
  align-items:flex-start
}
.watch-category-title{
  font-weight:800;
  font-size:16px;
  line-height:1.25
}
.watch-category-count{
  min-width:32px;
  height:32px;
  padding:0 9px;
  border-radius:999px;
  background:#f3f4f6;
  color:#111827;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:12px
}
.watch-category-card.active .watch-category-count{
  background:#fff;
  color:#111827
}
.watch-category-card p{
  margin:12px 0 14px;
  font-size:12.5px;
  line-height:1.5;
  color:#6b7280;
  flex:1
}
.watch-category-card.active p{color:#d1d5db}
.watch-category-action{
  font-size:12px;
  font-weight:800;
  color:#475569
}
.watch-category-card.active .watch-category-action{color:#fff}

#watchDetailCard{margin-top:18px}
.watch-definition-top{margin-bottom:14px}
.watch-detail-table{max-height:560px}
.detail-count{
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 12px;
  font-size:13px;
  font-weight:800;
  white-space:nowrap;
  background:#f8fafc
}

/* hide obsolete old stacked watchlist styles if cached markup ever appears */
.watch-stack{display:block}

@media(max-width:1200px){
  .watch-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:760px){
  .watch-category-grid{grid-template-columns:1fr}
  .watch-search-result{flex-direction:column;align-items:flex-start}
  .watch-search-categories{justify-content:flex-start}
  .watch-search-main{min-width:0}
}