:root{
  --px-purple:#7B38C2;
  --px-purple-600:#5e2b93;
  --px-dark:#0f1220;
  --px-dark-2:#171a2b;
  --px-border:#e9e9ef;
  --px-text:#212121;
  --px-muted:#6b7280;
  --px-success:#11a36a;
  --radius:18px;
  --shadow:0 8px 28px rgba(15,18,32,.08);
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;
  color:var(--px-text);
  background:#fafbfe;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.wrap{
  max-width:1400px;
  margin:28px auto 60px;
  padding:0 20px;
}

/* Header styles */
header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:12px;
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
}

.brand img {
  height:60px;
}

.brand h1{
  font-size:18px;
  letter-spacing:.4px;
  margin:0;
  font-weight:800;
  color:#2b2f42;
}

/* Clear All button */
.clear-all-btn {
  background: linear-gradient(135deg, #7B38C2 0%, #9B59D6 100%);
  color: white;
  border: none;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(123, 56, 194, 0.25);
}

.clear-all-btn:hover {
  background: linear-gradient(135deg, #6d2db3 0%, #8b4ac7 100%);
  box-shadow: 0 6px 16px rgba(123, 56, 194, 0.35);
  transform: translateY(-1px);
}

.clear-all-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(123, 56, 194, 0.3);
}

.topline{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:10px;
}

.title{
  font-size:18px;
  font-weight:800;
  color:#2b2f42;
  margin-bottom:4px;
}

.subtitle{
  color:#636a7a;
  font-weight:500;
  font-size:14px;
}

.divider{
  height:3px;
  background:linear-gradient(90deg,var(--px-purple),#b08be4 70%,#d6c7f2);
  border-radius:3px;
  opacity:.8;
  margin-bottom:20px;
}

/* Hamburger Menu Styles */
.hamburger-menu {
  position: relative;
}

.hamburger-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: all 0.3s ease;
}

.hamburger-btn span {
  display: block;
  width: 24px;
  height: 3px;
  background-color: #2b2f42;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger-btn:hover span {
  background-color: #7B38C2;
}

.hamburger-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.menu-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: white;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

.menu-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.menu-dropdown a {
  display: block;
  padding: 12px 20px;
  color: #2b2f42;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.2s ease;
  border-bottom: 1px solid #f3f4f6;
}

.menu-dropdown a:last-child {
  border-bottom: none;
}

.menu-dropdown a:hover {
  background: #f8f9fc;
  color: #7B38C2;
  padding-left: 24px;
}

.menu-dropdown a:first-child {
  border-radius: 8px 8px 0 0;
}

.menu-dropdown a:last-child {
  border-radius: 0 0 8px 8px;
}

/* Information bar */
.info-bar{
  display:flex;
  gap:30px;
  background:var(--px-dark);
  color:#fff;
  border-radius:14px;
  padding:16px 20px;
  box-shadow:var(--shadow);
  margin-bottom:20px;
  align-items:center;
  justify-content:space-evenly;
  flex-wrap:wrap;
}

.info-item{
  display:flex;
  gap:8px;
  align-items:center;
}

.info-label{
  color:rgba(255,255,255,0.7);
  font-size:14px;
}

.info-item b{
  font-size:16px;
}

/* Three panel grid */
.expert-grid{
  display:grid;
  grid-template-columns:300px 1fr 350px;
  gap:20px;
}

.panel{
  background:#fff;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:20px;
  border:1px solid var(--px-border);
}

.panel h3{
  margin:0 0 12px 0;
  font-size:18px;
  color:var(--px-dark-2);
  font-weight:700;
}

/* Left panel - ICD-10 codes */
.left-panel{
  height:calc(100vh - 280px);
  display:flex;
  flex-direction:column;
}

.code-list-container{
  flex:1;
  overflow-y:auto;
  overflow-x:hidden;
  border:1px solid var(--px-border);
  border-radius:12px;
  padding:8px;
}

/* Code search box */
.code-search-wrap{
  position:relative;
  margin-bottom:8px;
}
.code-search-input{
  width:100%;
  height:38px;
  border:1.5px solid var(--px-border);
  border-radius:8px;
  padding:0 34px 0 12px;
  font-family:'Poppins',sans-serif;
  font-size:13px;
  outline:none;
  background:#fff;
  color:var(--px-text);
  transition:border-color .2s, box-shadow .2s;
}
.code-search-input:focus{
  border-color:var(--px-purple);
  box-shadow:0 0 0 3px rgba(123,56,194,.12);
}
.code-search-input::placeholder{
  color:#aab0bc;
  font-weight:500;
}
.code-search-clear{
  position:absolute;
  right:6px;
  top:50%;
  transform:translateY(-50%);
  border:none;
  background:transparent;
  font-size:20px;
  line-height:1;
  color:#aab0bc;
  cursor:pointer;
  padding:2px 6px;
  display:none;            /* hidden until there's text */
}
.code-search-clear:hover{
  color:var(--px-purple);
}

/* Filter-active state: items that don't match get hidden */
.code-item.filter-hidden{
  display:none !important;
}
/* Chapter groups with zero visible children get hidden */
.code-group.filter-hidden{
  display:none !important;
}
/* Subtle highlight on matched items during search */
.code-item.filter-match .code-desc{
  color:var(--px-purple);
  font-weight:600;
}

/* Search result count badge */
.search-result-count{
  text-align:center;
  font-size:11px;
  font-weight:600;
  color:var(--px-muted);
  padding:4px 0 2px;
}

/* Expand / Collapse All button */
.expand-all-btn{
  width:100%;
  border:1.5px solid var(--px-border);
  border-radius:8px;
  background:#fafbfe;
  color:var(--px-purple);
  font-family:'Poppins',sans-serif;
  font-size:12px;
  font-weight:700;
  padding:7px 0;
  margin-bottom:8px;
  cursor:pointer;
  transition:all .2s;
  letter-spacing:.3px;
}
.expand-all-btn:hover{
  background:rgba(123,56,194,.08);
  border-color:var(--px-purple);
}

.code-group{
  margin-bottom:4px;
}

.code-group-header{
  font-weight:700;
  color:var(--px-purple);
  font-size:12px;
  padding:8px 10px;
  background:rgba(123,56,194,0.08);
  border-radius:8px;
  margin-bottom:2px;
  cursor:pointer;
  user-select:none;
  display:flex;
  align-items:center;
  gap:8px;
}

.code-group-header:hover{
  background:rgba(123,56,194,0.14);
}

.chapter-arrow{
  font-size:10px;
  color:var(--px-muted);
  flex:0 0 auto;
  width:14px;
  text-align:center;
  transition:transform .15s;
}

.chapter-label{
  flex:1;
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:1px;
}

.chapter-range{
  font-size:11px;
  font-weight:800;
  color:var(--px-purple);
  letter-spacing:.3px;
}

.chapter-name{
  font-size:11px;
  font-weight:500;
  color:var(--px-muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.chapter-count{
  flex:0 0 auto;
  background:var(--px-purple);
  color:#fff;
  font-size:10px;
  font-weight:700;
  min-width:22px;
  height:18px;
  line-height:18px;
  text-align:center;
  border-radius:9px;
  padding:0 6px;
}

.code-group-toggle{
  font-size:12px;
  color:var(--px-muted);
}

.code-list{
  padding-left:10px;
}

.code-item{
  display:flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  cursor:pointer;
  border-radius:6px;
  transition:background 0.2s;
  font-size:13px;
}

.code-item:nth-child(odd){
  background:#f9f9f9;
}

.code-item:nth-child(even){
  background:#ffffff;
}

.code-item:hover{
  background:#e8e8e8;
}

.code-item.selected{
  background:#d4b5f0 !important;
  font-weight:600;
}

.code-checkbox{
  display:none;
}

.code-label{
  flex:1;
  cursor:pointer;
  display:flex;
  gap:6px;
}

.code-number{
  font-weight:600;
  color:var(--px-dark);
  min-width:45px;
}

.code-desc{
  color:var(--px-muted);
}

.loading-msg{
  text-align:center;
  padding:40px 20px;
  color:var(--px-muted);
}

/* Middle panel - Chart */
.middle-panel{
  height:calc(100vh - 280px);
  display:flex;
  flex-direction:column;
}

.chart-subtitle{
  color:var(--px-muted);
  font-size:13px;
  margin-bottom:12px;
}

.chart-container{
  flex:1;
  position:relative;
}

#countryChart{
  height:100%;
}

/* Right panel - Outputs */
.right-panel{
  height:calc(100vh - 280px);
  display:flex;
  flex-direction:column;
  gap:16px;
}

.output-section{
  display:flex;
  flex-direction:column;
  gap:12px;
}

.output-card{
  border:1px solid var(--px-border);
  border-radius:12px;
  padding:16px;
  transition:all 0.3s;
}

.output-card:hover{
  border-color:var(--px-purple);
  box-shadow:0 4px 12px rgba(123,56,194,0.12);
}

.output-header{
  display:flex;
  gap:12px;
  margin-bottom:12px;
}

.output-icon{
  font-size:32px;
  line-height:1;
}

.output-info{
  flex:1;
}

.output-title{
  font-weight:700;
  font-size:15px;
  color:var(--px-dark);
  margin-bottom:4px;
}

.output-desc{
  font-size:12px;
  color:var(--px-muted);
  line-height:1.4;
}

.output-btn{
  width:100%;
  height:44px;
  border:none;
  border-radius:10px;
  font-weight:600;
  font-size:14px;
  cursor:not-allowed;
  color:#9aa0aa;
  background:#eef0f6;
  transition:all 0.3s;
}

.output-btn:not(:disabled){
  background:var(--px-purple);
  color:#fff;
  cursor:pointer;
}

.output-btn:not(:disabled):hover{
  background:var(--px-purple-600);
  transform:translateY(-2px);
  box-shadow:0 4px 12px rgba(123,56,194,0.3);
}

.output-btn:not(:disabled):active{
  transform:translateY(0);
}

.output-btn.loading{
  position:relative;
  color:transparent;
}

.output-btn.loading::after{
  content:'';
  position:absolute;
  width:20px;
  height:20px;
  top:50%;
  left:50%;
  margin-left:-10px;
  margin-top:-10px;
  border:3px solid rgba(255,255,255,0.3);
  border-radius:50%;
  border-top-color:#fff;
  animation:spin 0.8s linear infinite;
}

@keyframes spin{
  to{transform:rotate(360deg)}
}

.selection-summary{
  flex:1;
  border:1px solid var(--px-border);
  border-radius:12px;
  padding:16px;
  background:#fafbfe;
  overflow-y:auto;
}

.summary-title{
  font-weight:700;
  font-size:14px;
  color:var(--px-dark);
  margin-bottom:12px;
}

.summary-row{
  display:flex;
  justify-content:space-between;
  padding:8px 0;
  border-bottom:1px solid var(--px-border);
  font-size:13px;
}

.summary-label{
  color:var(--px-muted);
}

.summary-value{
  font-weight:600;
  color:var(--px-dark);
}

.selected-codes-list{
  margin-top:12px;
  max-height:200px;
  overflow-y:auto;
}

.selected-code-tag{
  display:inline-block;
  background:var(--px-purple);
  color:#fff;
  padding:4px 10px;
  border-radius:6px;
  font-size:11px;
  margin:4px 4px 0 0;
  font-weight:600;
}

/* Responsive */
@media (max-width: 1200px){
  .expert-grid{
    grid-template-columns:1fr;
  }
  
  .left-panel,
  .middle-panel,
  .right-panel{
    height:auto;
    min-height:400px;
  }
}