/* ============================================================
   NeuroRoute — Design System
   Cosmic-dark SaaS. Routing metaphor: network -> 3 colored arrows
   (cyan / magenta / amber). Expressive, data-rich, Linear+Stripe.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  /* base surfaces — slightly cool near-black */
  --bg-0:#07080d;          /* deepest (page) */
  --bg-1:#0b0d15;          /* app canvas */
  --bg-2:#11141f;          /* cards */
  --bg-3:#171b29;          /* raised / hover */
  --bg-inset:#0a0c13;      /* inputs, wells */

  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.12);
  --line-strong:rgba(255,255,255,.18);

  --tx-0:#eef1f8;          /* primary text */
  --tx-1:#aab2c5;          /* secondary */
  --tx-2:#727b91;          /* muted */
  --tx-3:#525a6e;          /* faint */

  /* brand / routing palette */
  --blue:#3b82f6;          /* network / routing / primary */
  --blue-2:#2563eb;
  --cyan:#22d3ee;          /* route arrow 1 / fast */
  --magenta:#e24fd6;       /* route arrow 2 / creative */
  --pink:#ec4899;
  --amber:#f59e0b;         /* route arrow 3 / warning */
  --green:#10b981;         /* savings / success */
  --purple:#8b5cf6;        /* premium / AI */
  --red:#f43f5e;

  /* tints (for soft badge/panel fills) */
  --blue-t:rgba(59,130,246,.14);
  --cyan-t:rgba(34,211,238,.14);
  --magenta-t:rgba(226,79,214,.14);
  --amber-t:rgba(245,158,11,.14);
  --green-t:rgba(16,185,129,.14);
  --purple-t:rgba(139,92,246,.14);
  --red-t:rgba(244,63,94,.14);

  /* signature gradients */
  --grad-route:linear-gradient(90deg,var(--cyan),var(--magenta) 52%,var(--amber));
  --grad-brand:linear-gradient(120deg,var(--blue),var(--magenta));
  --grad-wordmark:linear-gradient(100deg,#4ea0ff,#8b5cf6 48%,#ec4899);
  --grad-cosmic:radial-gradient(120% 120% at 0% 0%, rgba(59,130,246,.20), transparent 45%),
                radial-gradient(120% 120% at 100% 0%, rgba(226,79,214,.16), transparent 45%),
                radial-gradient(140% 140% at 60% 120%, rgba(245,158,11,.10), transparent 50%);

  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:22px; --r-pill:999px;

  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 8px 28px -12px rgba(0,0,0,.7);
  --sh-glow:0 0 0 1px var(--line-2), 0 18px 50px -18px rgba(59,130,246,.45);

  --sidebar-w:248px;
  --font-display:'Space Grotesk',sans-serif;
  --font-ui:'Manrope',sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-ui);
  background:var(--bg-0);
  color:var(--tx-0);
  -webkit-font-smoothing:antialiased;
  font-size:15px;
  line-height:1.5;
}
#root{min-height:100vh}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
::selection{background:rgba(226,79,214,.35)}

/* scrollbars */
*::-webkit-scrollbar{width:10px;height:10px}
*::-webkit-scrollbar-thumb{background:#222838;border-radius:99px;border:3px solid transparent;background-clip:padding-box}
*::-webkit-scrollbar-thumb:hover{background:#33394d;background-clip:padding-box}

/* ---------- typography helpers ---------- */
.display{font-family:var(--font-display);font-weight:600;letter-spacing:-.02em;line-height:1.04}
.mono{font-family:var(--font-mono)}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.eyebrow{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--tx-2)}
.muted{color:var(--tx-1)}
.faint{color:var(--tx-2)}
.gradient-text{background:var(--grad-wordmark);-webkit-background-clip:text;background-clip:text;color:transparent}
.route-text{background:var(--grad-route);-webkit-background-clip:text;background-clip:text;color:transparent}

h1,h2,h3,h4{margin:0;font-family:var(--font-display);font-weight:600;letter-spacing:-.02em}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-md);
  font-family:var(--font-ui);font-weight:600;font-size:14px;
  padding:10px 16px;line-height:1;white-space:nowrap;
  transition:.16s ease;color:var(--tx-0)}
.btn:active{transform:translateY(1px)}
.btn .ico{width:16px;height:16px;flex:none}
.btn-primary{background:var(--blue);border-color:transparent;color:#fff;
  box-shadow:0 6px 20px -8px rgba(59,130,246,.8)}
.btn-primary:hover{background:#5396ff}
.btn-grad{background:var(--grad-brand);color:#fff;box-shadow:0 8px 24px -8px rgba(226,79,214,.55)}
.btn-grad:hover{filter:brightness(1.08)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--tx-0)}
.btn-ghost:hover{background:var(--bg-3);border-color:var(--line-strong)}
.btn-soft{background:var(--bg-3);border-color:var(--line);color:var(--tx-0)}
.btn-soft:hover{background:#1d2233}
.btn-danger{background:var(--red-t);border-color:rgba(244,63,94,.4);color:#ff8095}
.btn-danger:hover{background:rgba(244,63,94,.22)}
.btn-sm{padding:7px 11px;font-size:13px;border-radius:var(--r-sm)}
.btn-lg{padding:13px 22px;font-size:15.5px}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* icon button */
.iconbtn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:var(--r-sm);border:1px solid var(--line);background:var(--bg-2);color:var(--tx-1);transition:.15s}
.iconbtn:hover{color:var(--tx-0);background:var(--bg-3);border-color:var(--line-2)}

/* ---------- cards ---------- */
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.card-pad{padding:20px}
.card-hd{display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 20px;border-bottom:1px solid var(--line)}
.card-hd h3{font-size:15px}
.card-title{font-family:var(--font-display);font-size:15px;font-weight:600}
.card-sub{font-size:12.5px;color:var(--tx-2);margin-top:2px}
.card-hover{transition:.18s ease}
.card-hover:hover{border-color:var(--line-2);transform:translateY(-2px);box-shadow:0 18px 40px -20px rgba(0,0,0,.8)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;
  padding:3px 9px;border-radius:var(--r-pill);border:1px solid transparent;
  font-family:var(--font-ui);letter-spacing:.01em;white-space:nowrap}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.b-blue{background:var(--blue-t);color:#7db0ff;border-color:rgba(59,130,246,.3)}
.b-cyan{background:var(--cyan-t);color:#5fe2f5;border-color:rgba(34,211,238,.3)}
.b-magenta{background:var(--magenta-t);color:#ef82e4;border-color:rgba(226,79,214,.3)}
.b-amber{background:var(--amber-t);color:#fbc15a;border-color:rgba(245,158,11,.32)}
.b-green{background:var(--green-t);color:#43d6a3;border-color:rgba(16,185,129,.32)}
.b-purple{background:var(--purple-t);color:#b095fb;border-color:rgba(139,92,246,.32)}
.b-red{background:var(--red-t);color:#ff8095;border-color:rgba(244,63,94,.32)}
.b-gray{background:rgba(255,255,255,.05);color:var(--tx-1);border-color:var(--line-2)}

/* role badges */
.role{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.04em;text-transform:uppercase;
  padding:2px 7px;border-radius:5px}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:7px}
.label{font-size:12.5px;font-weight:600;color:var(--tx-1)}
.hint{font-size:12px;color:var(--tx-2)}
.input,.select,.textarea{
  width:100%;background:var(--bg-inset);border:1px solid var(--line-2);border-radius:var(--r-md);
  color:var(--tx-0);font-family:var(--font-ui);font-size:14px;padding:11px 13px;transition:.15s;outline:none}
.input::placeholder,.textarea::placeholder{color:var(--tx-3)}
.input:focus,.select:focus,.textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,130,246,.2)}
.textarea{resize:vertical;min-height:96px;line-height:1.5}
.select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23727b91' stroke-width='2.5' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}
.input-mono{font-family:var(--font-mono);font-size:13px}

/* toggle switch */
.switch{position:relative;width:42px;height:24px;flex:none;border-radius:99px;background:var(--bg-3);
  border:1px solid var(--line-2);transition:.18s;cursor:pointer}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;
  background:var(--tx-1);transition:.18s}
.switch.on{background:var(--blue);border-color:transparent}
.switch.on::after{left:20px;background:#fff}

/* range slider */
.range{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:99px;
  background:linear-gradient(90deg,var(--blue) var(--p,50%),var(--bg-3) var(--p,50%));outline:none}
.range::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;
  background:#fff;border:3px solid var(--blue);cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.5)}

/* ---------- tables ---------- */
.table{width:100%;border-collapse:collapse;font-size:13.5px}
.table thead th{text-align:left;font-family:var(--font-ui);font-weight:600;font-size:11.5px;
  letter-spacing:.06em;text-transform:uppercase;color:var(--tx-2);
  padding:11px 16px;border-bottom:1px solid var(--line);white-space:nowrap;cursor:pointer;user-select:none}
.table thead th:hover{color:var(--tx-1)}
.table tbody td{padding:13px 16px;border-bottom:1px solid var(--line);color:var(--tx-1);vertical-align:middle}
.table tbody tr{transition:.12s}
.table tbody tr:hover{background:rgba(255,255,255,.025)}
.table tbody tr:last-child td{border-bottom:none}
.table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* progress / meters */
.meter{height:7px;border-radius:99px;background:var(--bg-3);overflow:hidden}
.meter>span{display:block;height:100%;border-radius:99px;background:var(--blue)}

/* ---------- misc layout ---------- */
.grid{display:grid;gap:18px}
.row{display:flex;gap:12px;align-items:center}
.spread{display:flex;align-items:center;justify-content:space-between;gap:12px}
.stack{display:flex;flex-direction:column}
.divider{height:1px;background:var(--line);border:0;margin:0}
.scroll-x{overflow-x:auto}

/* metric card */
.metric{padding:18px 20px}
.metric .m-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.metric .m-ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center}
.metric .m-val{font-family:var(--font-display);font-size:28px;font-weight:600;letter-spacing:-.02em;line-height:1}
.metric .m-label{font-size:12.5px;color:var(--tx-2);margin-top:6px}
.metric .m-delta{font-size:12px;font-weight:600;display:inline-flex;align-items:center;gap:3px}

/* dot status */
.statusdot{width:8px;height:8px;border-radius:50%;flex:none;box-shadow:0 0 0 0 currentColor}
.statusdot.pulse{animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)}70%{box-shadow:0 0 0 7px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}

/* code block */
.codeblock{background:var(--bg-inset);border:1px solid var(--line-2);border-radius:var(--r-md);
  font-family:var(--font-mono);font-size:13px;line-height:1.7;padding:16px;overflow-x:auto;color:#c7d0e4;position:relative}
.codeblock .tok-key{color:#7db0ff}.codeblock .tok-str{color:#43d6a3}.codeblock .tok-fn{color:#ef82e4}.codeblock .tok-com{color:var(--tx-3)}

/* empty state */
.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  padding:56px 24px;gap:14px}
.empty .e-ico{width:64px;height:64px;border-radius:18px;display:grid;place-items:center;
  background:var(--bg-3);border:1px solid var(--line-2)}

/* skeleton */
.skel{background:linear-gradient(90deg,var(--bg-3),#1c2233,var(--bg-3));background-size:200% 100%;
  animation:shimmer 1.4s infinite;border-radius:6px}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* tooltip-ish chip */
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:var(--r-pill);
  background:var(--bg-3);border:1px solid var(--line-2);font-size:12.5px;color:var(--tx-1);font-weight:500}

/* ---------- toasts ---------- */
.toast-wrap{position:fixed;top:18px;right:18px;z-index:1200;display:flex;flex-direction:column;gap:10px}
.toast{display:flex;align-items:flex-start;gap:11px;background:var(--bg-3);border:1px solid var(--line-2);
  border-radius:var(--r-md);padding:13px 15px;min-width:280px;max-width:380px;box-shadow:var(--sh-2);
  animation:toastIn .3s cubic-bezier(.2,.9,.3,1.2)}
.toast .t-ico{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;flex:none}
.toast .t-title{font-weight:700;font-size:13.5px}
.toast .t-msg{font-size:12.5px;color:var(--tx-1);margin-top:2px}
@keyframes toastIn{from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:none}}

/* ---------- modal ---------- */
.modal-overlay{position:fixed;inset:0;z-index:1100;background:rgba(5,6,11,.7);backdrop-filter:blur(6px);
  display:grid;place-items:center;padding:24px;animation:fade .2s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{background:var(--bg-2);border:1px solid var(--line-2);border-radius:var(--r-xl);width:100%;max-width:480px;
  box-shadow:0 40px 100px -30px rgba(0,0,0,.9);animation:modalIn .26s cubic-bezier(.2,.9,.3,1.1);overflow:hidden}
.modal-lg{max-width:640px}
@keyframes modalIn{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}
.modal-hd{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.modal-bd{padding:22px}
.modal-ft{display:flex;gap:10px;justify-content:flex-end;padding:16px 22px;border-top:1px solid var(--line);background:var(--bg-inset)}

/* ============================================================
   APP SHELL
   ============================================================ */
.app{display:grid;grid-template-columns:var(--sidebar-w) 1fr;min-height:100vh;background:var(--bg-1)}
.sidebar{position:sticky;top:0;height:100vh;background:var(--bg-0);border-right:1px solid var(--line);
  display:flex;flex-direction:column;overflow:hidden}
.sb-brand{display:flex;align-items:center;gap:11px;padding:18px 18px 14px}
.sb-mark{width:40px;height:40px;flex:none}
.sb-name{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:-.01em}
.sb-by{font-size:10.5px;color:var(--tx-2);font-family:var(--font-mono);letter-spacing:.04em}
.sb-nav{flex:1;overflow-y:auto;padding:6px 10px 16px}
.sb-section{font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--tx-3);padding:14px 10px 6px}
.sb-link{display:flex;align-items:center;gap:11px;padding:8px 10px;border-radius:9px;color:var(--tx-1);
  font-size:13.5px;font-weight:500;transition:.13s;position:relative;cursor:pointer}
.sb-link .ico{width:17px;height:17px;flex:none;color:var(--tx-2);transition:.13s}
.sb-link:hover{background:var(--bg-2);color:var(--tx-0)}
.sb-link:hover .ico{color:var(--tx-1)}
.sb-link.active{background:linear-gradient(90deg,rgba(59,130,246,.16),rgba(226,79,214,.06));color:#fff}
.sb-link.active .ico{color:var(--cyan)}
.sb-link.active::before{content:"";position:absolute;left:-10px;top:7px;bottom:7px;width:3px;border-radius:99px;background:var(--grad-route)}
.sb-link .tag{margin-left:auto;font-size:9.5px;font-family:var(--font-mono);color:var(--amber);
  background:var(--amber-t);padding:1px 6px;border-radius:99px}
.sb-foot{border-top:1px solid var(--line);padding:12px}
.sb-user{display:flex;align-items:center;gap:10px;padding:8px;border-radius:10px;cursor:pointer;transition:.13s}
.sb-user:hover{background:var(--bg-2)}
.avatar{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-weight:700;font-size:13px;color:#fff;flex:none}

.main{display:flex;flex-direction:column;min-width:0}
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:14px;
  padding:13px 28px;background:rgba(11,13,21,.8);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar h1{font-size:18px}
.crumb{font-size:12.5px;color:var(--tx-2);font-family:var(--font-mono)}
.searchbar{display:flex;align-items:center;gap:9px;background:var(--bg-inset);border:1px solid var(--line-2);
  border-radius:var(--r-md);padding:8px 12px;min-width:220px;color:var(--tx-2);font-size:13px}
.searchbar input{background:none;border:none;outline:none;color:var(--tx-0);font-family:inherit;font-size:13.5px;width:100%}
.page{padding:28px;max-width:1320px;width:100%;margin:0 auto}
.page-head{margin-bottom:22px}
.page-head h2{font-size:24px;margin-bottom:5px}
.page-head p{color:var(--tx-2);font-size:14px;margin:0}

/* hamburger (mobile) */
.hamburger{display:none}

/* gauge ring */
.gauge{position:relative;width:96px;height:96px}
.gauge svg{transform:rotate(-90deg)}
.gauge .g-val{position:absolute;inset:0;display:grid;place-items:center;font-family:var(--font-display);font-weight:600;font-size:21px}

/* sparkline inline */
.spark{display:block}

/* tabs */
.tabs{display:flex;gap:4px;background:var(--bg-inset);border:1px solid var(--line);border-radius:var(--r-md);padding:4px}
.tab{padding:7px 14px;border-radius:8px;font-size:13px;font-weight:600;color:var(--tx-2);transition:.13s;cursor:pointer}
.tab:hover{color:var(--tx-0)}
.tab.active{background:var(--bg-3);color:#fff;box-shadow:var(--sh-1)}

/* segmented (route colors) */
.seg{display:inline-flex;background:var(--bg-inset);border:1px solid var(--line);border-radius:var(--r-md);padding:3px}
.seg button{padding:7px 13px;border-radius:7px;border:none;background:none;color:var(--tx-2);font-size:13px;font-weight:600;transition:.13s}
.seg button.active{background:var(--bg-3);color:#fff;box-shadow:var(--sh-1)}

/* provider logo bubble */
.plogo{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-weight:800;font-size:13px;
  font-family:var(--font-display);flex:none;border:1px solid var(--line-2)}

@media(max-width:1080px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;width:var(--sidebar-w);z-index:200;transform:translateX(-100%);transition:.25s;box-shadow:0 0 60px rgba(0,0,0,.6)}
  .sidebar.open{transform:none}
  .hamburger{display:inline-flex}
  .sb-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:150}
  .page{padding:18px}
}

/* Markdown content rendering */
.md-content p{margin:0 0 10px}
.md-content p:last-child{margin-bottom:0}
.md-content h1,.md-content h2,.md-content h3,.md-content h4{margin:14px 0 8px;font-weight:700;line-height:1.3}
.md-content h1{font-size:18px}
.md-content h2{font-size:16px}
.md-content h3{font-size:15px}
.md-content h4{font-size:14px}
.md-content ul,.md-content ol{margin:6px 0 10px;padding-left:22px}
.md-content li{margin:3px 0}
.md-content code{background:rgba(125,176,255,.12);color:#7db0ff;padding:1px 6px;border-radius:5px;font-family:var(--font-mono);font-size:0.92em}
.md-content pre{background:var(--bg-inset);border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin:10px 0;overflow-x:auto}
.md-content pre code{background:transparent;color:var(--tx-0);padding:0;font-size:12.5px;line-height:1.5}
.md-content blockquote{border-left:3px solid var(--line-2);padding:0 12px;margin:10px 0;color:var(--tx-1)}
.md-content strong{font-weight:700;color:var(--tx-0)}
.md-content em{font-style:italic}
.md-content a{color:var(--blue);text-decoration:underline}
.md-content table{border-collapse:collapse;margin:10px 0;font-size:13px}
.md-content th,.md-content td{border:1px solid var(--line);padding:6px 10px;text-align:left}
.md-content th{background:var(--bg-inset);font-weight:700}
.md-content hr{border:none;border-top:1px solid var(--line);margin:14px 0}

/* Responsive metric grid — replaces hard-coded repeat(4,1fr) on every page.
   Adapts down to single column on narrow viewports without manual breakpoints. */
.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}

/* Sidebar user-menu popover */
.user-menu{position:absolute;bottom:calc(100% + 6px);left:14px;right:14px;background:var(--bg-2);border:1px solid var(--line-2);border-radius:12px;box-shadow:var(--sh-2);padding:6px;z-index:50}
.user-menu-item{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:8px;font-size:13.5px;color:var(--tx-0);cursor:pointer;transition:background .12s}
.user-menu-item:hover{background:var(--bg-3)}
.user-menu-item.danger{color:#ff8095}
.user-menu-item.danger:hover{background:var(--red-t)}

/* Better focus rings for accessibility */
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.btn:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* Error boundary fallback */
.error-boundary{padding:40px;text-align:center;max-width:520px;margin:80px auto}
.error-boundary h2{margin:14px 0 8px;font-family:var(--font-display)}
.error-boundary .err-trace{background:var(--bg-inset);border:1px solid var(--line);border-radius:10px;padding:14px;font-family:var(--font-mono);font-size:12px;text-align:left;color:var(--tx-1);overflow-x:auto;margin-top:18px;max-height:200px;overflow-y:auto}

/* Stop button (during streaming) */
.btn-stop{background:var(--red-t);border:1px solid rgba(244,63,94,.3);color:#ff8095}
.btn-stop:hover{background:rgba(244,63,94,.22)}

/* Chip-active variant for filter tabs */
.chip-active{background:var(--blue-t)!important;color:var(--blue)!important;border-color:rgba(59,130,246,.4)!important}

/* Spin keyframe for inline loaders */
@keyframes spin{to{transform:rotate(360deg)}}

/* Playground two-col layout collapses on narrow viewports */
@media (max-width: 1100px){
  .playground-2col{grid-template-columns:1fr!important}
  .playground-2col > div:last-child{position:static!important}
}