:root{
  --bg-primary:#ffffff;
  --bg-secondary:#f9fafb;
  --bg-tertiary:#f3f4f6;
  --border-primary:#e5e7eb;
  --border-muted:#d1d5db;
  --text-primary:#111827;
  --text-secondary:#4b5563;
  --text-tertiary:#9ca3af;
  --accent-primary:#0969da;
  --accent-success:#059669;
  --accent-danger:#dc2626;
  --accent-warning:#d97706;
  --button-bg:#111827;
  --button-text:#ffffff;
}

html[data-theme="dark"]{
  --bg-primary:#0f1419;
  --bg-secondary:#161b22;
  --bg-tertiary:#1c2128;
  --border-primary:#30363d;
  --border-muted:#21262d;
  --text-primary:#f0f6fc;
  --text-secondary:#c9d1d9;
  --text-tertiary:#8b949e;
  --accent-primary:#58a6ff;
  --accent-success:#3fb950;
  --accent-danger:#f85149;
  --accent-warning:#fb8500;
  --button-bg:#2d333b;
  --button-text:#f0f6fc;
}

*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}

html,body{
  height:100%;
  background:var(--bg-primary);
  color:var(--text-primary);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Inter",sans-serif;
  font-size:14px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4,h5,h6{
  font-weight:600;
  line-height:1.2;
}

code,pre,kbd{
  font-family:"IBM Plex Mono",monospace;
}

.loading-indicator{
  position:fixed;
  top:54px;
  left:0;
  right:0;
  height:2px;
  background:var(--accent-primary);
  transform:scaleX(0);
  transform-origin:left;
  z-index:200;
  opacity:0;
}

.loading-indicator.active{
  animation:loading-pulse 1.5s ease-in-out infinite;
  opacity:1;
}

@keyframes loading-pulse{
  0%{transform:scaleX(0) translateX(0);opacity:1}
  50%{transform:scaleX(0.7) translateX(20%);opacity:1}
  100%{transform:scaleX(0) translateX(100%);opacity:0}
}

.topbar{
  height:54px;
  background:var(--bg-secondary);
  border-bottom:1px solid var(--border-primary);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 20px;
  position:sticky;
  top:0;
  z-index:100;
}

.topbar-left{
  display:flex;
  align-items:center;
  gap:12px;
}

.topbar-title{
  font-size:15px;
  font-weight:700;
  letter-spacing:0.05em;
  text-transform:uppercase;
}

.topbar-divider{
  width:1px;
  height:20px;
  background:var(--border-muted);
}

.topbar-subtitle{
  font-size:11px;
  color:var(--text-tertiary);
  font-weight:500;
  letter-spacing:0.03em;
  text-transform:uppercase;
}

.topbar-right{
  display:flex;
  align-items:center;
  gap:12px;
}

.topbar-spec{
  font-size:11px;
  color:var(--text-tertiary);
  font-family:"IBM Plex Mono",monospace;
  font-weight:500;
}

.btn-theme{
  background:transparent;
  border:1px solid var(--border-primary);
  color:var(--text-secondary);
  padding:4px 10px;
  border-radius:4px;
  font-size:11px;
  font-weight:500;
  cursor:pointer;
  transition:all 0.2s ease;
}

.btn-theme:hover{
  border-color:var(--text-secondary);
  color:var(--text-primary);
}

.live-indicator{
  display:flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border:1px solid var(--accent-success);
  border-radius:4px;
  font-size:11px;
  font-weight:600;
  color:var(--accent-success);
  text-transform:uppercase;
  letter-spacing:0.03em;
}

.live-dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--accent-success);
  animation:pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot{
  0%,100%{opacity:1}
  50%{opacity:0.3}
}

.container{
  display:grid;
  grid-template-columns:280px 1fr;
  height:calc(100vh - 54px);
  overflow:hidden;
}

.sidebar{
  background:var(--bg-secondary);
  border-right:1px solid var(--border-primary);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

.sidebar-search-wrap{
  padding:12px;
  border-bottom:1px solid var(--border-muted);
}

.sidebar-search{
  width:100%;
  padding:8px 12px;
  border:1px solid var(--border-primary);
  border-radius:4px;
  background:var(--bg-primary);
  color:var(--text-primary);
  font-size:13px;
  transition:all 0.2s ease;
}

.sidebar-search:focus{
  outline:none;
  border-color:var(--accent-primary);
  box-shadow:0 0 0 2px rgba(9,105,218,0.1);
}

.sidebar-nav{
  flex:1;
  overflow-y:auto;
  list-style:none;
}

.sidebar-nav::-webkit-scrollbar{
  width:6px;
}

.sidebar-nav::-webkit-scrollbar-track{
  background:transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb{
  background:var(--border-muted);
  border-radius:3px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover{
  background:var(--border-primary);
}

.sidebar-group-label{
  padding:12px 12px 8px;
  font-size:10px;
  font-weight:600;
  color:var(--text-tertiary);
  text-transform:uppercase;
  letter-spacing:0.05em;
  border-bottom:1px solid var(--border-muted);
}

.workload-item{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:10px 12px;
  cursor:pointer;
  border-left:2px solid transparent;
  transition:all 0.15s ease;
  border-bottom:1px solid var(--border-muted);
}

.workload-item:hover{
  background:var(--bg-tertiary);
}

.workload-item.active{
  background:var(--bg-tertiary);
  border-left-color:var(--accent-primary);
}

.workload-item.hidden{
  display:none;
}

.workload-badge{
  width:32px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border-primary);
  border-radius:4px;
  flex-shrink:0;
  font-family:"IBM Plex Mono",monospace;
  font-size:10px;
  font-weight:600;
  color:var(--text-secondary);
}

.workload-text{
  flex:1;
  min-width:0;
}

.workload-label{
  font-size:12px;
  font-weight:600;
  color:var(--text-primary);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.workload-item.active .workload-label{
  color:var(--accent-primary);
}

.workload-sub{
  font-size:11px;
  color:var(--text-tertiary);
  margin-top:2px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

#history-container{
  border-top:1px solid var(--border-primary);
  background:var(--bg-primary);
}

.history-item{
  padding:10px 12px;
  font-size:12px;
  color:var(--text-secondary);
  cursor:pointer;
  border-bottom:1px solid var(--border-muted);
  transition:all 0.15s ease;
  font-family:"IBM Plex Mono",monospace;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.history-item:hover{
  background:var(--bg-tertiary);
  color:var(--accent-primary);
}

.main{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:var(--bg-primary);
}

.hero{
  display:grid;
  grid-template-columns:1fr 320px;
  gap:0;
  border-bottom:1px solid var(--border-primary);
  background:var(--bg-secondary);
  padding:24px;
}

.hero-content{
  border-right:1px solid var(--border-muted);
  padding-right:24px;
}

.hero-eyebrow{
  font-size:11px;
  color:var(--accent-primary);
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.05em;
  margin-bottom:12px;
}

.hero-title{
  font-size:28px;
  font-weight:700;
  margin-bottom:12px;
  max-width:600px;
}

.hero-desc{
  font-size:14px;
  color:var(--text-secondary);
  max-width:600px;
  margin-bottom:20px;
}

.intent-box{
  display:grid;
  grid-template-columns:1fr 140px;
  border:1px solid var(--border-primary);
  border-radius:6px;
  background:var(--bg-primary);
  overflow:hidden;
}

.intent-input{
  grid-column:1 / 2;
  min-height:100px;
  resize:vertical;
  border:0;
  border-right:1px solid var(--border-muted);
  padding:12px;
  background:transparent;
  color:var(--text-primary);
  font-family:"IBM Plex Mono",monospace;
  font-size:12px;
  line-height:1.6;
  outline:none;
}

.intent-input::placeholder{
  color:var(--text-tertiary);
}

.btn-primary{
  grid-column:2 / 3;
  border:0;
  background:var(--button-bg);
  color:var(--button-text);
  padding:12px;
  font-size:11px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.05em;
  cursor:pointer;
  font-family:inherit;
  transition:all 0.2s ease;
}

.btn-primary:hover{
  opacity:0.9;
}

.btn-primary:active{
  opacity:0.8;
}

.btn-primary:disabled{
  background:var(--border-primary);
  color:var(--text-tertiary);
  cursor:not-allowed;
  opacity:0.6;
}

.route-result{
  grid-column:1 / -1;
  padding:10px 12px;
  border-top:1px solid var(--border-muted);
  font-family:"IBM Plex Mono",monospace;
  font-size:12px;
  color:var(--accent-success);
  min-height:20px;
  opacity:0;
  transition:opacity 0.3s ease;
}

.route-result.active{
  opacity:1;
}

.hero-metrics{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
}

.metric-item{
  border:1px solid var(--border-primary);
  border-radius:6px;
  padding:12px;
  background:var(--bg-primary);
}

.metric-label{
  font-size:10px;
  color:var(--text-tertiary);
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.03em;
  margin-bottom:8px;
}

.metric-value{
  font-size:14px;
  font-weight:600;
  color:var(--text-primary);
  font-family:"IBM Plex Mono",monospace;
}

.confidence-bar{
  width:100%;
  height:6px;
  background:var(--border-muted);
  border-radius:3px;
  overflow:hidden;
  margin:6px 0;
}

.confidence-fill{
  height:100%;
  background:linear-gradient(90deg, var(--accent-success), var(--accent-warning));
  width:0%;
  transition:width 0.4s cubic-bezier(0.4, 0.2, 0.2, 1);
  border-radius:3px;
}

.routes-grid{
  display:grid;
  grid-template-columns:repeat(6, 1fr);
  gap:1px;
  background:var(--border-muted);
  padding:0;
  border-bottom:1px solid var(--border-primary);
}

.route-card{
  background:var(--bg-secondary);
  padding:16px;
  position:relative;
  transition:all 0.2s ease;
}

.route-card.winner{
  background:var(--bg-tertiary);
}

.route-card.winner::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:var(--accent-success);
}

.rc-code{
  font-family:"IBM Plex Mono",monospace;
  font-size:10px;
  font-weight:600;
  color:var(--text-tertiary);
  margin-bottom:8px;
  text-transform:uppercase;
}

.rc-name{
  font-size:11px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:8px;
}

.rc-score{
  font-family:"IBM Plex Mono",monospace;
  font-size:18px;
  font-weight:400;
  color:var(--text-secondary);
  margin-bottom:8px;
  transition:color 0.3s ease;
}

.route-card.winner .rc-score{
  color:var(--accent-success);
  font-weight:600;
}

.rc-bar{
  height:3px;
  background:var(--border-muted);
  border-radius:2px;
  margin-bottom:8px;
  overflow:hidden;
}

.rc-bar-fill{
  height:100%;
  background:var(--accent-primary);
  width:0%;
  transition:width 0.4s cubic-bezier(0.4, 0.2, 0.2, 1);
  border-radius:2px;
}

.route-card.winner .rc-bar-fill{
  background:var(--accent-success);
}

.rc-badge{
  font-family:"IBM Plex Mono",monospace;
  font-size:9px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.03em;
  color:var(--text-tertiary);
  transition:color 0.3s ease;
}

.route-card.winner .rc-badge{
  color:var(--accent-success);
}

.lower-panels{
  display:grid;
  grid-template-columns:1fr 1fr;
  flex:1;
  overflow:hidden;
  gap:0;
}

.panel{
  background:var(--bg-secondary);
  border-right:1px solid var(--border-primary);
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

.panel:last-child{
  border-right:none;
}

.panel-header{
  padding:12px 16px;
  border-bottom:1px solid var(--border-primary);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-shrink:0;
  background:var(--bg-primary);
}

.panel-title{
  font-size:11px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.05em;
  color:var(--text-primary);
}

.panel-meta{
  font-size:10px;
  color:var(--text-tertiary);
  font-family:"IBM Plex Mono",monospace;
}

.panel-body{
  flex:1;
  overflow-y:auto;
  background:var(--bg-secondary);
}

.panel-body::-webkit-scrollbar{
  width:6px;
}

.panel-body::-webkit-scrollbar-track{
  background:transparent;
}

.panel-body::-webkit-scrollbar-thumb{
  background:var(--border-muted);
  border-radius:3px;
}

.panel-body::-webkit-scrollbar-thumb:hover{
  background:var(--border-primary);
}

.empty-state{
  display:flex;
  align-items:center;
  justify-content:center;
  height:100%;
  color:var(--text-tertiary);
  font-size:12px;
  text-align:center;
  padding:24px;
  font-family:"IBM Plex Mono",monospace;
}

.candidate-row{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 16px;
  border-bottom:1px solid var(--border-muted);
  transition:background 0.15s ease;
}

.candidate-row:hover{
  background:var(--bg-tertiary);
}

.candidate-row.top{
  background:var(--bg-tertiary);
}

.candidate-num{
  width:20px;
  height:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border-primary);
  border-radius:3px;
  font-family:"IBM Plex Mono",monospace;
  font-size:9px;
  font-weight:600;
  color:var(--text-tertiary);
  flex-shrink:0;
}

.candidate-row.top .candidate-num{
  background:var(--route-color, var(--accent-primary));
  color:#ffffff;
  border-color:transparent;
}

.candidate-body{
  flex:1;
  min-width:0;
}

.candidate-text{
  font-family:"IBM Plex Mono",monospace;
  font-size:11px;
  color:var(--text-secondary);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  margin-bottom:4px;
}

.candidate-row.top .candidate-text{
  color:var(--text-primary);
  font-weight:600;
}

.candidate-bar-wrap{
  height:3px;
  background:var(--border-muted);
  border-radius:2px;
  overflow:hidden;
}

.candidate-bar{
  height:100%;
  background:var(--border-primary);
  width:0%;
  transition:width 0.4s cubic-bezier(0.4, 0.2, 0.2, 1);
  border-radius:2px;
}

.candidate-row.top .candidate-bar{
  background:var(--route-color, var(--accent-primary));
}

.candidate-score{
  font-family:"IBM Plex Mono",monospace;
  font-size:11px;
  font-weight:600;
  min-width:50px;
  text-align:right;
  color:var(--text-tertiary);
}

.candidate-row.top .candidate-score{
  color:var(--route-color, var(--accent-primary));
}

.curl-wrapper{
  padding:16px;
}

.curl-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:8px;
  font-size:10px;
  font-weight:600;
  color:var(--text-tertiary);
  text-transform:uppercase;
  letter-spacing:0.03em;
}

.curl-actions{
  display:flex;
  align-items:center;
  gap:8px;
}

.curl-block{
  background:var(--bg-primary);
  border:1px solid var(--border-primary);
  border-radius:4px;
  padding:12px;
  font-family:"IBM Plex Mono",monospace;
  font-size:11px;
  color:var(--text-secondary);
  white-space:pre-wrap;
  word-break:break-all;
  line-height:1.6;
  margin-bottom:12px;
}

.result-card{
  border-top:1px solid var(--border-muted);
  margin-top:12px;
  padding-top:12px;
  opacity:0;
  transition:opacity 0.3s ease;
  max-height:0;
  overflow:hidden;
}

.result-card.active{
  opacity:1;
  max-height:500px;
}

.result-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:8px 0;
  margin-bottom:8px;
  font-size:10px;
  font-weight:600;
  color:var(--text-tertiary);
  text-transform:uppercase;
  letter-spacing:0.03em;
}

.result-badge{
  font-family:"IBM Plex Mono",monospace;
  font-size:10px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.03em;
  color:var(--accent-primary);
}

.result-toolbar{
  display:flex;
  justify-content:flex-end;
  margin-bottom:8px;
}

.result-body{
  background:var(--bg-primary);
  border:1px solid var(--border-primary);
  border-radius:4px;
  padding:12px;
  font-family:"IBM Plex Mono",monospace;
  font-size:11px;
  color:var(--text-secondary);
  white-space:pre-wrap;
  line-height:1.6;
  max-height:300px;
  overflow-y:auto;
}

.btn-copy{
  background:transparent;
  border:1px solid var(--border-primary);
  color:var(--text-secondary);
  padding:6px 10px;
  border-radius:4px;
  font-size:10px;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:0.03em;
  cursor:pointer;
  transition:all 0.2s ease;
  font-family:"IBM Plex Mono",monospace;
}

.btn-copy:hover{
  border-color:var(--text-secondary);
  color:var(--text-primary);
}

.btn-copy.success{
  border-color:var(--accent-success);
  color:var(--accent-success);
}

.btn-copy.error{
  border-color:var(--accent-danger);
  color:var(--accent-danger);
}

.footer{
  height:40px;
  background:var(--bg-secondary);
  border-top:1px solid var(--border-primary);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 20px;
  font-size:11px;
  color:var(--text-secondary);
  font-family:"IBM Plex Mono",monospace;
  letter-spacing:0.03em;
  flex-shrink:0;
}

.footer-col strong{
  color:var(--text-primary);
  font-weight:600;
}

/* Tablet */
@media(max-width:1200px){
  .hero{
    grid-template-columns:1fr;
  }

  .hero-content{
    border-right:none;
    border-bottom:1px solid var(--border-muted);
    padding-right:0;
    padding-bottom:20px;
    margin-bottom:20px;
  }

  .routes-grid{
    grid-template-columns:repeat(3, 1fr);
  }

  .lower-panels{
    grid-template-columns:1fr;
  }

  .panel{
    border-right:none;
    border-bottom:1px solid var(--border-primary);
  }

  .panel:last-child{
    border-bottom:none;
  }
}

/* Mobile */
@media(max-width:768px){
  html,body{
    height:auto;
    min-height:100%;
    overflow-x:hidden;
  }

  .loading-indicator{
    top:0;
  }

  .topbar{
    height:auto;
    min-height:54px;
    padding:12px 14px;
    align-items:flex-start;
    gap:10px;
  }

  .topbar-left{
    gap:10px;
    min-width:0;
  }

  .topbar-title{
    font-size:14px;
    line-height:1.2;
  }

  .topbar-divider,
  .topbar-subtitle,
  .topbar-spec{
    display:none;
  }

  .topbar-right{
    gap:8px;
    flex-shrink:0;
  }

  .btn-theme,
  .live-indicator{
    padding:4px 8px;
    font-size:10px;
  }

  .container{
    display:block;
    height:auto;
    min-height:calc(100vh - 54px);
    overflow:visible;
  }

  .sidebar{
    display:none;
  }

  .main{
    display:block;
    height:auto;
    overflow:visible;
  }

  .hero{
    display:block;
    padding:18px 14px;
  }

  .hero-content{
    border-right:none;
    border-bottom:none;
    padding-right:0;
    padding-bottom:0;
    margin-bottom:18px;
  }

  .hero-eyebrow{
    font-size:10px;
    margin-bottom:10px;
  }

  .hero-title{
    font-size:24px;
    line-height:1.15;
    max-width:none;
  }

  .hero-desc{
    font-size:14px;
    max-width:none;
    margin-bottom:16px;
  }

  .intent-box{
    display:block;
  }

  .intent-input{
    display:block;
    width:100%;
    min-height:140px;
    border-right:none;
    border-bottom:1px solid var(--border-muted);
  }

  .btn-primary{
    width:100%;
    min-height:48px;
    display:block;
  }

  .route-result{
    font-size:11px;
    overflow-wrap:anywhere;
  }

  .hero-metrics{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
  }

  .metric-item{
    padding:10px;
  }

  .routes-grid{
    grid-template-columns:1fr 1fr;
  }

  .route-card{
    padding:14px;
  }

  .lower-panels{
    display:block;
    height:auto;
    overflow:visible;
  }

  .panel{
    min-height:320px;
    border-right:none;
    border-bottom:1px solid var(--border-primary);
  }

  .panel-body{
    max-height:420px;
    overflow-y:auto;
  }

  .panel-header{
    padding:11px 14px;
  }

  .candidate-row{
    padding:10px 12px;
    gap:10px;
  }

  .candidate-text{
    font-size:10px;
  }

  .candidate-score{
    min-width:44px;
    font-size:10px;
  }

  .curl-wrapper{
    padding:12px;
  }

  .curl-header{
    align-items:flex-start;
    gap:10px;
  }

  .curl-actions{
    flex-wrap:wrap;
    justify-content:flex-end;
  }

  .curl-block,
  .result-body{
    font-size:10px;
    overflow-x:auto;
    word-break:normal;
    white-space:pre;
  }

  .result-card.active{
    max-height:none;
  }

  .footer{
    height:auto;
    display:block;
    padding:12px 14px;
    line-height:1.7;
  }

  .footer-col{
    font-size:10px;
  }

  .footer-col + .footer-col{
    margin-top:6px;
  }
}

/* Small phones */
@media(max-width:430px){
  .topbar{
    flex-direction:column;
    align-items:stretch;
  }

  .topbar-right{
    width:100%;
    justify-content:space-between;
  }

  .hero{
    padding:16px 12px;
  }

  .hero-title{
    font-size:22px;
  }

  .hero-metrics{
    grid-template-columns:1fr;
  }

  .routes-grid{
    grid-template-columns:1fr;
  }

  .panel{
    min-height:300px;
  }

  .curl-header{
    display:block;
  }

  .curl-actions{
    justify-content:flex-start;
    margin-top:8px;
  }
}