/* ==========================================================================
   Duel_mind Arena — Styles
   ========================================================================== */

:root{
  /* Palette - Dark Theme (default) */
  --bg-0:#0f1115;   /* page background */
  --bg-1:#12141b;   /* panels / cards */
  --bg-2:#171a21;   /* hover */
  --text-1:#e8eaf0; /* primary */
  --text-2:#a9afbd; /* secondary */
  --text-3:#7c8394; /* tertiary */
  --brand:#8ab4ff;  /* link */
  --line:#222632;   /* hairline */

  --danger:#ef4444;
  --success:#22c55e;

  --space-1:4px;
  --space-2:8px;
  --space-3:12px;
  --space-4:16px;
  --space-5:20px;
  --space-6:24px;
  --space-7:32px;
  --space-8:40px;

  --text-xs:12px;
  --text-sm:13px;
  --text-md:14px;
  --text-lg:16px;

  /* Effects */
  --radius-lg:18px;
  --radius-md:14px;
  --radius:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow: 0 10px 30px rgba(0,0,0,.45);
  --shadow-sm: 0 8px 22px rgba(0,0,0,.32);
  --shadow-lg: 0 22px 70px rgba(0,0,0,.55);
  --shadow-hover: 0 18px 48px rgba(0,0,0,.50);
  --focus-ring: 0 0 0 1px rgba(138,180,255,.25), 0 0 0 8px rgba(138,180,255,.08);
  --glow: radial-gradient(60% 40% at 50% 50%, rgba(100,120,255,.15), transparent 70%);

  /* Animation timing */
  --fast: .12s cubic-bezier(.2,.7,.3,1);
  --med:  .18s cubic-bezier(.2,.7,.3,1);
  --slow: .32s cubic-bezier(.2,.8,.2,1);

  --sidebar-width:230px;
}

/* Light Theme */
[data-theme="light"]{
  --bg-0:#ffffff;
  --bg-1:#f5f5f7;
  --bg-2:#e8e8ed;
  --text-1:#1a1a1a;
  --text-2:#666666;
  --text-3:#999999;
  --brand:#3b5cff;
  --line:#e0e0e0;
  --shadow: 0 10px 30px rgba(0,0,0,.1);
  --focus-ring: 0 0 0 1px rgba(59,92,255,.25), 0 0 0 8px rgba(59,92,255,.08);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  color:var(--text-1);
  background:
    radial-gradient(900px 500px at 15% 10%, rgba(138,180,255,.10), transparent 65%),
    radial-gradient(1200px 600px at 60% 40%, rgba(60,70,140,.16), transparent 70%),
    linear-gradient(180deg, #050608 0%, #080a0f 45%, #0f1115 100%);
  background-color:var(--bg-0);
  letter-spacing:.01px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

button, input, textarea, select{font:inherit}
::selection{background:rgba(138,180,255,.25)}

:where(a, button, input, textarea, select):focus{outline:none}
:where(a, button, input, textarea, select):focus-visible{box-shadow:var(--focus-ring)}

@media (prefers-reduced-motion: reduce){
  html:focus-within{scroll-behavior:auto}
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

[data-theme="light"] body{
  background:
    radial-gradient(1200px 600px at 60% 40%, rgba(59,92,255,.08), transparent 70%),
    linear-gradient(180deg, #f8f8fa 0%, #ffffff 100%);
  background-color:#ffffff;
}

/* Layout */
.app{
  display:grid;
  grid-template-columns: var(--sidebar-width) minmax(0,1fr);
  min-height:100vh;
  transition: grid-template-columns 0.25s ease;
}
.app.sidebar-collapsed{--sidebar-width:68px;}

/* ===== Sidebar ===== */
.sidebar{
  border-right:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.02), transparent 18%), #050608;
  padding:14px 12px 18px;
  position:sticky; top:0; height:100vh;
  display:flex; flex-direction:column; gap:14px;
  width: var(--sidebar-width);
  transition: width 0.25s ease, padding 0.25s ease, background 0.3s ease;
  overflow: hidden;
  box-shadow: 1px 0 0 rgba(255,255,255,.02);
}

[data-theme="light"] .sidebar{
  background: linear-gradient(180deg, rgba(0,0,0,.01), transparent 18%), #ffffff;
  border-right-color: #e0e0e0;
}
.sidebar.collapsed{
  width: var(--sidebar-width);
  padding: 14px 10px 18px;
}

/* Hide text elements when collapsed */
.sidebar.collapsed .brand-text,
.sidebar.collapsed .brand .chev,
.sidebar.collapsed .btn span,
.sidebar.collapsed .navlink span,
.sidebar.collapsed .section-label,
.sidebar.collapsed .chat-item span,
.sidebar.collapsed .account-info-text,
.sidebar.collapsed .legal,
.sidebar.collapsed .sidebar-toggle-right{
  display: none;
}

/* Center icons when collapsed */
.sidebar.collapsed .brand-row{
  justify-content: center;
}
.sidebar.collapsed .brand{
  justify-content: center;
  padding: 10px;
  flex: 0;
}
.sidebar.collapsed .btn,
.sidebar.collapsed .navlink,
.sidebar.collapsed .chat-item{
  justify-content: center;
  padding: 10px;
}
.sidebar.collapsed .account-btn{
  justify-content: center;
}

/* Brand wrapper for dropdown */
.brand-wrapper{
  position: relative;
}

/* Brand row - contains brand button and sidebar toggle */
.brand-row{
  display: flex;
  align-items: center;
  gap: 4px;
}

.brand{
  display:flex; align-items:center; gap:8px;
  color:var(--text-1); font-weight:600;
  padding:10px 10px; border-radius:10px; user-select:none;
  transition: background var(--fast), padding 0.25s ease, justify-content 0.25s ease;
  background: transparent;
  border: none;
  cursor: pointer;
  flex: 1;
  min-width: 0;
}
.brand:hover{background:var(--bg-2)}
.brand i{font-size:18px; color:var(--text-3)}
.brand .brand-text{
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
  font-size:14px;
  transition: opacity 0.2s ease;
}
.brand .chev{
  margin-left:auto; color:var(--text-3);
  display:flex; align-items:center; justify-content:center;
  padding:4px; border-radius:8px; transition: transform 0.2s ease;
}
.brand-wrapper.open .brand .chev{
  transform: rotate(180deg);
}
.brand:focus{outline:none; background:var(--bg-2)}

/* Brand Dropdown Menu */
.brand-menu{
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px;
  box-shadow: var(--shadow);
  z-index: 100;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity var(--med), transform var(--med);
}
.brand-wrapper.open .brand-menu{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.brand-menu-item{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text-2);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background var(--fast), color var(--fast);
}
.brand-menu-item:hover{
  background: var(--bg-2);
  color: var(--text-1);
}
.brand-menu-item i{
  font-size: 18px;
  color: var(--text-3);
}
.brand-menu-item:hover i{
  color: var(--text-2);
}
.brand-menu-divider{
  height: 1px;
  background: var(--line);
  margin: 6px 0;
}

/* Theme row in dropdown */
.theme-row{
  justify-content: space-between;
  cursor: default;
}
.theme-row:hover{
  background: transparent;
}
.theme-label{
  font-size: 14px;
  color: var(--text-2);
}
.theme-switcher{
  display: flex;
  gap: 4px;
  background: var(--bg-2);
  padding: 4px;
  border-radius: 8px;
}
.theme-btn{
  width: 32px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--text-3);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background var(--fast), color var(--fast);
}
.theme-btn:hover{
  color: var(--text-2);
}
.theme-btn.active{
  background: var(--bg-1);
  color: var(--text-1);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* Brand logo icon */
.brand-logo{
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-3);
  position: relative;
}

/* Toggle icon hidden by default, shown on hover when collapsed */
.brand-logo .toggle-icon{
  display: none;
}

.sidebar.collapsed .brand:hover .brand-logo .grid-icon{
  display: none;
}
.sidebar.collapsed .brand:hover .brand-logo .toggle-icon{
  display: block;
}
.sidebar.collapsed .brand:hover .brand-logo{
  color: var(--text-1);
}

/* Right sidebar toggle button */
.sidebar-toggle-right{
  background: transparent;
  border: none;
  color: var(--text-3);
  font-size: 18px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--fast), color var(--fast);
  flex-shrink: 0;
}
.sidebar-toggle-right:hover{
  background: var(--bg-2);
  color: var(--text-1);
}
.sidebar-toggle-right i{
  transition: transform 0.25s ease;
}
.sidebar.collapsed .sidebar-toggle-right i{
  transform: rotate(180deg);
}

.btn{
  display:flex; align-items:center; gap:10px;
  padding:8px 12px; border-radius: var(--radius-sm);
  border:1px solid transparent;
  background:transparent;
  color:var(--text-1); text-decoration:none; font-weight:500;
  transition: transform var(--fast), background var(--fast), border-color var(--fast);
  will-change: transform;
}
.btn i{font-size:18px;color:var(--text-2)}
.btn:hover{background:var(--bg-2); border-color:var(--line)}
.btn:active{transform:translateY(1px)}

.navlink{
  display:flex; align-items:center; gap:10px;
  padding:8px 10px; border-radius:8px;
  color:var(--text-2); text-decoration:none; transition: background var(--fast), color var(--fast);
  background:transparent; border:none; width:100%; cursor:pointer; font:inherit;
  will-change: transform;
}
.navlink i{font-size:18px; color:var(--text-3)}
.navlink:hover{background:var(--bg-2); color:var(--text-1)}
.navlink.active{
  background:var(--bg-2);
  color:var(--text-1);
}
.navlink.active i{color:var(--text-1)}
.navlink-arrow{
  margin-left:auto; font-size:14px; color:var(--text-3);
}

/* Leaderboard dropdown menu */
.navlink-wrapper{
  position:relative;
}
.navlink-menu{
  position:fixed;
  left:var(--sidebar-width);
  top:auto;
  width:180px;
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(0,0,0,.08)), var(--bg-1);
  border:1px solid var(--line);
  border-radius:10px;
  padding:6px;
  box-shadow:var(--shadow);
  opacity:0;
  transform:translateX(-8px);
  pointer-events:none;
  transition: opacity var(--med), transform var(--med);
  z-index:1000;
}
.navlink-wrapper.open .navlink-menu{
  opacity:1;
  transform:translateX(0);
  pointer-events:auto;
}
.navlink-menu-item{
  display:flex; align-items:center; gap:10px;
  padding:8px 10px; border-radius:8px;
  color:var(--text-2); text-decoration:none;
  font-size:13px;
  transition: background var(--fast), color var(--fast);
}
.navlink-menu-item i{
  font-size:16px; color:var(--text-3);
}
.navlink-menu-item:hover{
  background:var(--bg-2); color:var(--text-1);
}
.navlink-menu-item:hover i{
  color:var(--text-1);
}

.section-label{
  color:var(--text-3); font-size:13px; font-weight:500;
  letter-spacing:.02em; margin:10px 6px 4px;
}

.chat-item{
  display:flex; align-items:center; gap:10px;
  padding:6px 6px; border-radius:999px; width:100%;
  color:var(--text-2); cursor:pointer; transition: background var(--fast), color var(--fast), transform var(--fast);
  background:transparent; border:none; text-align:left;
  will-change: transform;
}
.chat-item i{
  font-size:15px; color:var(--text-2);
  width:26px; height:26px; border-radius:999px;
  display:inline-flex; align-items:center; justify-content:center;
  background:#181b23;
}
.chat-item span{font-size:14px;}
.chat-item:hover{background:var(--bg-2); color:var(--text-1)}
.chat-item:hover i{background:#1f232c; color:var(--text-1)}
.chat-item:active{transform:translateY(1px)}

.sidebar-spacer{flex:1}

/* Account Section in Sidebar */
.account-section{
  padding: 0 8px;
}
.account-btn{
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 4px 10px;
  border-radius: 8px;
  background: transparent;
  border: none;
  color: var(--text-1);
  cursor: pointer;
  transition: background var(--fast);
}
.account-btn:hover{
  background: var(--bg-2);
}
.account-avatar{
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7C3AED, #5B21B6);
  color: #fff;
  font-weight: 600;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.account-info-text{
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  flex: 1;
}
.account-name{
  font-size: 10px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.account-fullname{
  font-size: 12px;
  font-weight: 500;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Account Modal */
.modal-overlay{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--slow);
}
.modal-overlay.open{
  opacity: 1;
  pointer-events: auto;
}
.modal-content{
  background:
    radial-gradient(900px 300px at 20% -10%, rgba(138,180,255,.10), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(0,0,0,.22)),
    var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 16px;
  width: 90%;
  max-width: 360px;
  box-shadow: var(--shadow-lg);
  transform: translateY(22px) scale(0.96);
  transition: transform var(--slow), box-shadow var(--slow);
  will-change: transform;
}

[data-theme="light"] .modal-content{
  background: #ffffff;
}
.modal-overlay.open .modal-content{
  transform: translateY(0) scale(1);
  box-shadow: var(--shadow-lg);
}
.modal-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
}
.modal-header h3{
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
}
.modal-close{
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: background var(--fast), color var(--fast);
}
.modal-close:hover{
  background: var(--bg-2);
  color: var(--text-1);
}
.modal-body{
  padding: 20px;
}
.account-info{
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.account-avatar-large{
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7C3AED, #5B21B6);
  color: #fff;
  font-weight: 600;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.account-details{
  flex: 1;
  min-width: 0;
}
.account-fullname{
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
}
.account-email{
  margin: 0;
  font-size: 13px;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.modal-actions{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.modal-btn{
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text-1);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--fast), border-color var(--fast);
}
.modal-btn i{
  font-size: 18px;
  color: var(--text-2);
}
.modal-btn:hover{
  background: var(--bg-2);
  border-color: var(--text-3);
}

.main{
  min-width:0;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}

.topbar{
  position:sticky;
  top:0;
  z-index:50;
  border-bottom:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.12)), rgba(10,12,16,.72);
  backdrop-filter: blur(10px);
}

[data-theme="light"] .topbar{
  background: rgba(255,255,255,.82);
}

.topbar-inner{
  height:54px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 22px;
  gap:14px;
}

.crumb{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}

.crumb i{
  color:var(--text-3);
  font-size:18px;
}

.crumb-dd{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 10px;
  border-radius: 12px;
  border:1px solid transparent;
  background: rgba(255,255,255,.02);
  color:var(--text-1);
  font-weight:700;
  cursor:pointer;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.crumb-dd:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.22)}
.crumb-dd:active{transform: translateY(1px)}
.crumb-dd .caret{color:var(--text-3)}

.right-actions{
  display:flex;
  align-items:center;
  gap:10px;
}

.login{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:36px;
  padding:0 12px;
  border-radius: 12px;
  text-decoration:none;
  color:var(--text-1);
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(0,0,0,.14));
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.login:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.22)}
.login:active{transform: translateY(1px)}

.ghost{
  width:36px;
  height:36px;
  border-radius: 12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color:var(--text-1);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.ghost:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.22)}
.ghost:active{transform: translateY(1px)}

.api-status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color:var(--text-2);
  font-size:12px;
  font-weight:600;
}

.api-status .dot{
  width:8px;
  height:8px;
  border-radius:999px;
  background: rgba(124,131,148,.9);
  box-shadow: 0 0 0 3px rgba(124,131,148,.16);
}

.api-status.is-online .dot,
.api-status.online .dot{
  background: rgba(34,197,94,.95);
  box-shadow: 0 0 0 3px rgba(34,197,94,.16);
}

.api-status.is-offline .dot,
.api-status.offline .dot{
  background: rgba(239,68,68,.95);
  box-shadow: 0 0 0 3px rgba(239,68,68,.16);
}

[data-theme="light"] .api-status{background:#ffffff}

.menu{
  position:absolute;
  top:54px;
  left: calc(var(--sidebar-width) + 18px);
  width: 320px;
  border-radius: 16px;
  padding:8px;
  border:1px solid var(--line);
  background:
    radial-gradient(900px 320px at 10% 0%, rgba(138,180,255,.10), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(0,0,0,.18)),
    var(--bg-1);
  box-shadow: var(--shadow-lg);
  transform: translateY(-10px);
  opacity:0;
  pointer-events:none;
  transition: opacity var(--slow), transform var(--slow);
}

@media (max-width: 720px){
  .menu{
    left: 14px;
    right: 14px;
    width: auto;
  }
}

.menu[aria-hidden="false"]{
  opacity:1;
  transform: translateY(0);
  pointer-events:auto;
}

.menu.open{
  opacity:1;
  transform: translateY(0);
  pointer-events:auto;
}

[data-theme="light"] .menu{background:#ffffff}

.menu-item{
  width:100%;
  text-align:left;
  border:1px solid transparent;
  background: transparent;
  color:var(--text-1);
  border-radius: 14px;
  padding: 12px 12px;
  cursor:pointer;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.menu-item:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.18)}
.menu-item:active{transform: translateY(1px)}

.menu-item-content{display:flex; align-items:center; justify-content:space-between; gap:12px}
.menu-item-text{display:flex; flex-direction:column; gap:2px; min-width:0}
.menu-item-title{font-weight:800; font-size:13px; color:var(--text-1)}
.menu-item-desc{font-size:12px; color:var(--text-3); line-height:1.35}
.menu-item i{font-size:18px; color:var(--text-2)}

.center{
  flex:1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:flex-start;
  padding: 56px 20px 36px;
  text-align:center;
}

html.ui-ready .center{animation: centerIn var(--slow) 1 both}
@keyframes centerIn{from{opacity:0; transform: translateY(10px)} to{opacity:1; transform: translateY(0)}}

.logo-row{
  display:flex;
  gap:10px;
  align-items:center;
  justify-content:center;
  margin-bottom: 18px;
}

.logo-chip{
  width:34px;
  height:34px;
  border-radius: 999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:13px;
  color: var(--text-1);
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  box-shadow: 0 8px 18px rgba(0,0,0,.28);
}

.logo-g{background: radial-gradient(70% 70% at 40% 30%, rgba(66,133,244,.35), transparent 60%), rgba(255,255,255,.02)}
.logo-perp{background: radial-gradient(70% 70% at 40% 30%, rgba(236,72,153,.28), transparent 60%), rgba(255,255,255,.02)}
.logo-openai{background: radial-gradient(70% 70% at 40% 30%, rgba(16,185,129,.28), transparent 60%), rgba(255,255,255,.02)}
.logo-anthropic{background: radial-gradient(70% 70% at 40% 30%, rgba(245,158,11,.28), transparent 60%), rgba(255,255,255,.02)}
.logo-meta{background: radial-gradient(70% 70% at 40% 30%, rgba(59,92,255,.28), transparent 60%), rgba(255,255,255,.02)}
.logo-xai{background: radial-gradient(70% 70% at 40% 30%, rgba(255,255,255,.10), transparent 60%), rgba(255,255,255,.02)}
.logo-others{background: radial-gradient(70% 70% at 40% 30%, rgba(138,180,255,.22), transparent 60%), rgba(255,255,255,.02)}

.title{
  margin: 0;
  font-size: 46px;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.subtitle{
  margin: 12px 0 22px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.5;
  max-width: 740px;
}

.subtitle a{color:var(--brand); text-decoration:none}
.subtitle a:hover{text-decoration:underline}

.prompt-wrap{
  width: min(880px, 100%);
  position:relative;
}

.prompt-wrap .halo{
  position:absolute;
  inset:-2px;
  border-radius: 22px;
  background: radial-gradient(70% 60% at 50% 20%, rgba(138,180,255,.26), transparent 60%);
  filter: blur(14px);
  opacity:.7;
  pointer-events:none;
}

.prompt{
  position:relative;
  border-radius: 22px;
  border:1px solid rgba(138,180,255,.18);
  background:
    radial-gradient(900px 280px at 20% 0%, rgba(138,180,255,.10), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.04), rgba(0,0,0,.18)),
    var(--bg-1);
  box-shadow: var(--shadow-lg);
  padding: 14px 14px 10px;
  transition: border-color var(--slow), box-shadow var(--slow), transform var(--slow);
}

[data-theme="light"] .prompt{background:#ffffff}

.prompt:focus-within{
  border-color: rgba(138,180,255,.35);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(138,180,255,.15), 0 0 0 10px rgba(138,180,255,.08);
}

.model-picker{
  display:grid;
  grid-template-columns: 1fr 1fr auto;
  gap:10px;
  align-items:end;
  margin-bottom: 10px;
}

@media (max-width: 680px){
  .model-picker{
    grid-template-columns: 1fr;
  }
  .model-swap{
    width: 100%;
  }
}

.model-picker-field{display:flex; flex-direction:column; gap:6px; min-width:0}

.model-picker-label{
  font-size:11px;
  font-weight:800;
  color:var(--text-3);
  letter-spacing:.06em;
  text-transform:uppercase;
}

.model-select{
  height:40px;
  border-radius: 14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-1);
  padding: 0 12px;
  outline:none;
  transition: border-color var(--fast), background var(--fast), transform var(--fast);
}

[data-theme="light"] .model-select{background:#ffffff}

.model-select:disabled{opacity:.65; cursor:not-allowed}
.model-select:hover:not(:disabled){border-color: rgba(138,180,255,.22)}
.model-select:focus-visible{box-shadow: var(--focus-ring)}

.model-swap{
  width:42px;
  height:40px;
  border-radius: 14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-1);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.model-swap:hover:not(:disabled){background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.22)}
.model-swap:active:not(:disabled){transform: translateY(1px)}
.model-swap:disabled{opacity:.6; cursor:not-allowed; transform:none}

.model-picker-hint{
  margin: 0 0 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border:1px dashed rgba(138,180,255,.22);
  background: rgba(138,180,255,.08);
  color: var(--text-2);
  font-size: 13px;
  line-height: 1.4;
}

/* Battle Mode Selector */
.battle-mode-selector{
  display:flex;
  align-items:center;
  gap:10px;
  margin: 0 0 12px;
  flex-wrap: wrap;
}

.battle-mode-label{
  font-size: 12px;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.battle-mode-btn{
  height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(138,180,255,.18);
  background: rgba(138,180,255,.06);
  color: var(--text-2);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .02em;
  cursor: pointer;
  transition: all var(--fast);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
}

.battle-mode-btn:hover{
  background: rgba(138,180,255,.12);
  border-color: rgba(138,180,255,.28);
}

.battle-mode-btn.active{
  background: linear-gradient(135deg, rgba(138,180,255,.22), rgba(138,180,255,.12));
  border-color: rgba(138,180,255,.45);
  color: var(--text-1);
  box-shadow: 0 0 12px rgba(138,180,255,.15);
}

.battle-mode-btn i{font-size: 14px; opacity: .9}
.battle-mode-btn span{display:inline-block; transform: translateY(-.5px)}

@media (max-width: 680px){
  .battle-mode-selector{flex-direction: column; align-items: stretch;}
  .battle-mode-label{text-align: center;}
  .battle-mode-btn{width: 100%;}
}

.model-picker-hint a{color:var(--brand)}

#promptInput{
  width:100%;
  resize:none;
  border:none;
  background: transparent;
  color: var(--text-1);
  font-size: 15px;
  line-height: 1.5;
  padding: 8px 10px 6px;
  outline:none;
  min-height: 44px;
}

#promptInput::placeholder{color: rgba(124,131,148,.9)}

.tools-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding: 6px 8px 0;
}

.tools{display:flex; align-items:center; gap:6px}

.tool{
  width:34px;
  height:34px;
  border-radius: 12px;
  border:1px solid transparent;
  background: transparent;
  color: var(--text-2);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition: background var(--fast), border-color var(--fast), transform var(--fast), color var(--fast);
}

.tool:hover{background: rgba(255,255,255,.04); border-color: var(--line); color: var(--text-1)}
.tool:active{transform: translateY(1px)}

.send{
  width:40px;
  height:40px;
  border-radius: 14px;
  border:1px solid rgba(138,180,255,.28);
  background: rgba(138,180,255,.18);
  color: var(--text-1);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition: transform var(--fast), background var(--fast), border-color var(--fast);
}

.send:hover{background: rgba(138,180,255,.24); border-color: rgba(138,180,255,.38)}
.send:active{transform: translateY(1px)}

.toast{
  position: fixed;
  left:50%;
  bottom: 20px;
  transform: translateX(-50%) translateY(18px);
  opacity:0;
  pointer-events:none;
  background: rgba(0,0,0,.65);
  color: #fff;
  border:1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  padding: 10px 14px;
  box-shadow: var(--shadow);
  transition: opacity var(--slow), transform var(--slow);
  z-index: 9999;
}

.toast.show{
  opacity:1;
  transform: translateX(-50%) translateY(0);
}

.arena-results{
  width: min(1200px, 100%);
  margin-top: 22px;
}

.arena-grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px;
}

@media (max-width: 900px){
  .arena-grid{grid-template-columns: 1fr}
}

.arena-card{
  border-radius: var(--radius-lg);
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.16)), var(--bg-1);
  box-shadow: var(--shadow-sm);
  overflow:hidden;
  transform: translateY(0);
  transition: transform var(--slow), box-shadow var(--slow), border-color var(--slow);
}

[data-theme="light"] .arena-card{background:#ffffff}

.arena-card:hover{transform: translateY(-2px); box-shadow: var(--shadow-hover)}

.arena-card.winner{
  border-color: rgba(34,197,94,.28);
  box-shadow: var(--shadow-hover), 0 0 0 1px rgba(34,197,94,.16);
}

.arena-card-head{
  padding: 14px 14px 10px;
  border-bottom: 1px solid rgba(255,255,255,.04);
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
}

.arena-card-title{
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:0;
}

.arena-card-title .label{
  font-size:11px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text-3);
}

.arena-card-title .model{
  font-size:13px;
  font-weight:800;
  color:var(--text-1);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.arena-card-meta{
  height:26px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-2);
  font-size:12px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}

[data-theme="light"] .arena-card-head{border-bottom-color: rgba(0,0,0,.06)}

.arena-head-left{display:flex; align-items:center; gap:10px; min-width:0}
.arena-head-right{display:flex; align-items:center; justify-content:flex-end; gap:8px}

.arena-agent-pill{
  height:26px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-2);
  font-size:12px;
  font-weight:700;
  flex-shrink:0;
}

.arena-model-name{
  font-weight:800;
  color: var(--text-1);
  font-size: 13px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.arena-meta-pill{
  height:26px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid rgba(138,180,255,.20);
  background: rgba(138,180,255,.10);
  color: var(--text-1);
  font-size:12px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.winner-badge{
  height:26px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid rgba(34,197,94,.28);
  background: rgba(34,197,94,.12);
  color: var(--text-1);
  font-size:12px;
  font-weight:800;
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.arena-card-body{padding: 14px 14px 16px}

.arena-message{
  color: var(--text-1);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.arena-skeleton{display:flex; flex-direction:column; gap:10px}

.arena-skel-line{
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255,255,255,.05), rgba(255,255,255,.10), rgba(255,255,255,.05));
  background-size: 200% 100%;
  animation: lbshimmer 1.1s ease-in-out infinite;
}

[data-theme="light"] .arena-skel-line{
  background: linear-gradient(90deg, rgba(0,0,0,.05), rgba(0,0,0,.08), rgba(0,0,0,.05));
}

.arena-skel-line.w-90{width:90%}
.arena-skel-line.w-70{width:70%}
.arena-skel-line.w-55{width:55%}
.arena-skel-line.w-35{width:35%}

.arena-feedback{
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-2);
  font-size: 13px;
  line-height: 1.45;
}

.arena-feedback.is-success,
.arena-feedback.success{border-color: rgba(34,197,94,.25); background: rgba(34,197,94,.10)}

.arena-feedback.is-warn,
.arena-feedback.warn{border-color: rgba(245,158,11,.28); background: rgba(245,158,11,.10)}

.arena-feedback.is-danger,
.arena-feedback.danger{border-color: rgba(239,68,68,.25); background: rgba(239,68,68,.10)}

.arena-feedback.is-info,
.arena-feedback.info{border-color: rgba(138,180,255,.22); background: rgba(138,180,255,.08)}

.arena-voting{
  margin-top: 12px;
  padding: 12px;
  border-radius: var(--radius-lg);
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.16)), var(--bg-1);
}

[data-theme="light"] .arena-voting{background:#ffffff}

.voting-prompt{margin: 0 0 10px; color: var(--text-2); font-size: 13px}

.voting-buttons{display:flex; gap:10px; justify-content:center; flex-wrap:wrap}

.vote-btn{
  height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-1);
  cursor:pointer;
  font-weight:700;
  transition: transform var(--fast), background var(--fast), border-color var(--fast);
  display:inline-flex;
  align-items:center;
  gap:8px;
}

.vote-btn:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.22)}
.vote-btn:active{transform: translateY(1px)}
.vote-btn:disabled{opacity:.55; cursor:not-allowed; transform:none}

html.api-offline .vote-btn{
  opacity:.55;
  cursor:not-allowed;
}

.vote-btn.voted{border-color: rgba(34,197,94,.28); background: rgba(34,197,94,.12)}
.vote-btn.vote-tie{border-style:dashed}

.arena-footer{margin-top: 10px; color: var(--text-3); font-size: 12px}

.arena-error-full{grid-column: 1 / -1}

.arena-error .arena-message{color: var(--danger)}

.arena-error-actions{margin-top: 12px; display:flex; justify-content:flex-start}

.arena-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius: 999px;
  border:1px solid rgba(138,180,255,.22);
  background: rgba(138,180,255,.12);
  color: var(--text-1);
  cursor:pointer;
  font-weight:800;
  transition: transform var(--fast), background var(--fast), border-color var(--fast);
}

.arena-cta:hover{background: rgba(138,180,255,.18); border-color: rgba(138,180,255,.32)}
.arena-cta:active{transform: translateY(1px)}

.chat-results{
  width: min(880px, 100%);
  margin-top: 18px;
}

.chat-messages{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.chat-bubble{
  border-radius: var(--radius-lg);
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.16)), var(--bg-1);
  box-shadow: var(--shadow-sm);
  padding: 12px 12px;
}

[data-theme="light"] .chat-bubble{background:#ffffff}

.chat-bubble.user{
  border-color: rgba(138,180,255,.20);
  background: rgba(138,180,255,.10);
}

.chat-bubble-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom: 8px;
}

.model-tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.18);
  color: var(--text-2);
  font-size: 12px;
  font-weight:800;
  max-width: 70%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

[data-theme="light"] .model-tag{background: rgba(0,0,0,.05); border-color: rgba(0,0,0,.08)}

.chat-content{
  color: var(--text-1);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.copy-btn{
  width:34px;
  height:34px;
  border-radius: 12px;
  border:1px solid transparent;
  background: rgba(255,255,255,.02);
  color: var(--text-2);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition: background var(--fast), border-color var(--fast), transform var(--fast), color var(--fast);
}

.copy-btn:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.18); color: var(--text-1)}
.copy-btn:active{transform: translateY(1px)}

.thread-list{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding: 0 6px;
}

.thread-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  padding: 10px 10px;
  border-radius: 12px;
  border:1px solid transparent;
  background: transparent;
  color: var(--text-2);
  cursor:pointer;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.thread-item i{
  width:28px;
  height:28px;
  border-radius: 999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background: rgba(255,255,255,.03);
  color: var(--text-3);
  flex-shrink:0;
}

.thread-item span{
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  font-size: 13px;
  font-weight:650;
  color: inherit;
}

.thread-item:hover{background: rgba(255,255,255,.03); border-color: rgba(255,255,255,.06)}
.thread-item:active{transform: translateY(1px)}

.thread-item.active{
  background: rgba(138,180,255,.10);
  border-color: rgba(138,180,255,.20);
  color: var(--text-1);
}

.thread-item.active::before{
  content:"";
  position:absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(138,180,255,.85), rgba(138,180,255,.25));
  opacity: 1;
}

.thread-item.active i{background: rgba(138,180,255,.12); color: var(--text-1)}

.thread-item-title{
  min-width:0;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  font-size: 13px;
  font-weight:700;
  color: inherit;
}

.thread-item-meta{
  margin-left:auto;
  font-size: 11px;
  color: var(--text-3);
}

.thread-state{
  border:1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px;
  background: rgba(255,255,255,.02);
  text-align:left;
}

.thread-state-title{font-weight:800; color: var(--text-1); margin-bottom:4px}
.thread-state-subtitle{font-size:12px; color: var(--text-3); line-height:1.35}

.thread-state-action{
  margin-top: 10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height: 34px;
  padding: 0 12px;
  border-radius: 12px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  color: var(--text-1);
  cursor:pointer;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
}

.thread-state-action:hover{background: rgba(138,180,255,.10); border-color: rgba(138,180,255,.20)}
.thread-state-action:active{transform: translateY(1px)}

.thread-empty{
  border:1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px;
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.16)), var(--bg-1);
  box-shadow: 0 10px 28px rgba(0,0,0,.28);
  display:flex;
  flex-direction:column;
  gap:10px;
  margin: 4px 0 2px;
}

.thread-empty-body{display:flex; flex-direction:column; gap:4px}

[data-theme="light"] .thread-empty{background:#ffffff}

.thread-empty-title{
  font-weight:800;
  color: var(--text-1);
  font-size: 13px;
}

.thread-empty-subtitle{
  margin-top: 4px;
  color: var(--text-3);
  font-size: 12px;
  line-height: 1.35;
}

.thread-retry{
  justify-content:center;
  background: rgba(138,180,255,.10);
  border:1px solid rgba(138,180,255,.20);
  color: var(--text-1);
}

.thread-retry:hover{background: rgba(138,180,255,.14); border-color: rgba(138,180,255,.28)}

/* Leaderboard Modal */
.modal-lg{
  max-width: 600px;
  width: 92%;
}
.leaderboard-content{
  max-height: 400px;
  overflow-y: auto;
  scrollbar-gutter: stable;
}

.leaderboard-loading{
  text-align:center;
  padding: 18px 12px;
  color: var(--text-3);
  font-size: 13px;
}

.leaderboard-content::-webkit-scrollbar{width: 10px}
.leaderboard-content::-webkit-scrollbar-thumb{background: rgba(255,255,255,.10); border-radius: 999px; border: 2px solid rgba(0,0,0,0)}
.leaderboard-content::-webkit-scrollbar-track{background: transparent}
[data-theme="light"] .leaderboard-content::-webkit-scrollbar-thumb{background: rgba(0,0,0,.10)}

.leaderboard-shell{display:flex; flex-direction:column; gap:12px}

.leaderboard-top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
}

.leaderboard-top-left{display:flex; flex-direction:column; gap:4px; min-width:0}

.leaderboard-title{
  font-weight:700;
  font-size:14px;
  color:var(--text-1);
  letter-spacing:.01em;
}

.leaderboard-subtitle{
  font-size:12px;
  color:var(--text-3);
  line-height:1.35;
}

.leaderboard-refresh,
.leaderboard-action{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:36px;
  padding:0 12px;
  border-radius: 12px;
  border:1px solid var(--line);
  background: var(--bg-2);
  color: var(--text-1);
  cursor:pointer;
  transition: background var(--fast), border-color var(--fast), transform var(--fast);
  flex-shrink:0;
}

.leaderboard-refresh:hover,
.leaderboard-action:hover{background: rgba(138,180,255,.12); border-color: rgba(138,180,255,.25)}
.leaderboard-refresh:active,
.leaderboard-action:active{transform: translateY(1px)}
.leaderboard-refresh:disabled{opacity:.55; cursor:not-allowed; transform:none}

.leaderboard-state{
  text-align:center;
  padding: 18px 12px;
  border-radius: var(--radius-md);
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(0,0,0,.18)), var(--bg-1);
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:center;
}

[data-theme="light"] .leaderboard-state{background:#ffffff}

.leaderboard-state-title{font-weight:700; color:var(--text-1)}
.leaderboard-state-subtitle{color:var(--text-3); font-size:12px; line-height:1.35}

.leaderboard-table-wrap{
  border-radius: var(--radius-md);
  border:1px solid var(--line);
  overflow:hidden;
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(0,0,0,.10)), var(--bg-1);
}

.leaderboard-table{
  width: 100%;
  border-collapse: collapse;
}

.leaderboard-table-premium thead{
  position:sticky;
  top:0;
  z-index:1;
  background: var(--bg-1);
}

[data-theme="light"] .leaderboard-table-premium thead{background:#ffffff}

.leaderboard-table th,
.leaderboard-table td{
  padding: 11px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.leaderboard-table th{
  font-size: 11px;
  font-weight: 700;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.leaderboard-table td{
  font-size: 13px;
  color: var(--text-1);
}

.leaderboard-row:hover td{background: rgba(138,180,255,.06)}

.leaderboard-table tr:last-child td{border-bottom: none;}

.rank{width:72px}
.rank-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:48px;
  height:26px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text-2);
  font-weight:700;
}

.rank.rank-1 .rank-pill{border-color: rgba(255,215,0,.35); color:#ffd700}
.rank.rank-2 .rank-pill{border-color: rgba(192,192,192,.35); color:#c0c0c0}
.rank.rank-3 .rank-pill{border-color: rgba(205,127,50,.35); color:#cd7f32}

.win-pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:26px;
  padding:0 10px;
  border-radius: 999px;
  border:1px solid rgba(138,180,255,.22);
  background: rgba(138,180,255,.10);
  color: var(--text-1);
  font-weight:700;
}

.lb-model{display:flex; flex-direction:column; gap:2px; min-width:0}
.lb-model-name{font-weight:600; color:var(--text-1); overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.lb-model-provider{font-size:12px; color:var(--text-3); overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.stats{color:var(--text-2); font-weight:600}

.leaderboard-row-skel td{background:transparent}
.lb-skel{
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255,255,255,.05), rgba(255,255,255,.10), rgba(255,255,255,.05));
  background-size: 200% 100%;
  animation: lbshimmer 1.1s ease-in-out infinite;
}

[data-theme="light"] .lb-skel{
  background: linear-gradient(90deg, rgba(0,0,0,.05), rgba(0,0,0,.08), rgba(0,0,0,.05));
}

.lb-skel-rank{width:48px}
.lb-skel-wide{width:70%; margin-bottom:8px}
.lb-skel-narrow{width:42%}
.lb-skel-mid{width:54%}

@keyframes lbshimmer{
  0%{background-position: 0% 0}
  100%{background-position: 200% 0}
}

/* ===== Thread Winner/Last Highlight ===== */
.chat-bubble.thread-winner{
  border-color: rgba(255,215,0,.35);
  background: linear-gradient(135deg, rgba(255,215,0,.08), transparent 60%), var(--bg-1);
}

.chat-bubble.thread-winner .model-tag{color: #ffd700}
.chat-bubble.thread-winner .model-tag i{margin-left:6px; font-size:12px}

.chat-bubble.thread-last{
  border-color: rgba(138,180,255,.35);
  box-shadow: 0 0 0 2px rgba(138,180,255,.12);
}

[data-theme="light"] .chat-bubble.thread-winner{
  background: linear-gradient(135deg, rgba(255,215,0,.12), transparent 60%), #ffffff;
}

/* ===== Responsive ===== */
@media (max-width: 1040px){
  .app{grid-template-columns: 70px 1fr}
  .brand-text, .btn span, .navlink span, .chat-item span, .legal{display:none}
  .sidebar{padding:12px}
  .btn, .navlink, .chat-item{justify-content:center}
}
@media (max-width: 720px){
  .title{font-size:32px}
  .center{margin-top:70px}
  .topbar-inner{padding:0 14px}
}