:root{
  --bg:#14171a;--panel:#1c2024;--panel-2:#20252a;--border:#2b2f33;--border-strong:#343a40;
  --text:#dee2e6;--text-dim:#adb5bd;--muted:#6c757d;--green:#166105;--green-bright:#28a745;
  --blue:#007bff;--red:#dc3545;--accent:#007bff;
}
*,*::before,*::after{box-sizing:border-box}
html{overflow-x:clip}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  line-height:1.55;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.bco-wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.bco-mono{font-family:ui-monospace,'Andale Mono',Menlo,Consolas,monospace}

/* ---- header ---- */
.bco-header{position:sticky;top:0;z-index:40;background:#181b1e;border-bottom:1px solid var(--border)}
.bco-header-inner{max-width:1180px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:28px}
.bco-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.bco-logo-img{border-radius:4px}
.bco-wordmark{font-family:ui-monospace,'Andale Mono',Menlo,Consolas,monospace;font-weight:700;letter-spacing:.06em;font-size:15px;color:var(--text)}
.bco-nav{flex:1 1 auto}
.bco-nav ul{list-style:none;display:flex;gap:22px;margin:0;padding:0}
.bco-nav-link{color:var(--text-dim);font-size:14.5px;padding:6px 2px;border-bottom:2px solid transparent}
.bco-nav-link:hover{color:var(--text);text-decoration:none}
.bco-nav-link.is-active{color:var(--text);border-bottom-color:var(--accent)}
.bco-cta{background:var(--green);color:#fff;padding:9px 18px;border-radius:8px;font-weight:600;font-size:14px;white-space:nowrap;border:1px solid rgba(255,255,255,.08)}
.bco-cta:hover{background:var(--green-bright);text-decoration:none}
.bco-cta-desktop{margin-left:auto}
.bco-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:38px;height:38px;background:transparent;border:1px solid var(--border-strong);border-radius:6px;cursor:pointer;margin-left:auto}
.bco-burger span{display:block;width:18px;height:2px;background:var(--text);margin:0 auto;transition:transform .2s ease,opacity .2s ease}
.bco-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.bco-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.bco-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.bco-mobile-nav{position:fixed;top:64px;right:0;bottom:0;width:78vw;max-width:320px;
  background:#16191c;border-left:1px solid var(--border);z-index:39;
  transform:translateX(100%);transition:transform .25s ease;padding:22px 20px;overflow-y:auto}
.bco-mobile-nav.is-open{transform:translateX(0)}
.bco-mobile-nav ul{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:4px}
.bco-mobile-nav a{display:block;padding:11px 4px;color:var(--text-dim);border-bottom:1px solid var(--border)}
.bco-mobile-nav a.is-active{color:var(--text)}
.bco-mobile-nav .bco-cta{display:block;text-align:center}

@media (min-width:861px){
  .bco-mobile-nav{display:none !important}
}
@media (max-width:860px){
  .bco-nav,.bco-cta-desktop{display:none}
  .bco-burger{display:flex}
  .bco-header-inner{gap:12px}
}

/* ---- chips / badges ---- */
.bco-chip{display:inline-flex;align-items:center;gap:6px;background:var(--panel-2);
  border:1px solid var(--border-strong);color:var(--text-dim);font-size:12.5px;
  padding:6px 12px;border-radius:999px;white-space:nowrap}
.bco-chip.is-warn{border-color:rgba(220,53,69,.5);color:#f3a5ad}
.bco-chip.is-ok{border-color:rgba(40,167,69,.5);color:#8fd6a3}
.bco-chip-row{display:flex;flex-wrap:wrap;gap:9px}

/* ---- cards / grids ---- */
.bco-card{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:22px}
.bco-grid-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.bco-page-card{display:block;background:var(--panel);border:1px solid var(--border);
  border-radius:12px;padding:18px 20px;transition:border-color .15s ease,transform .15s ease}
.bco-page-card:hover{border-color:var(--accent);transform:translateY(-2px);text-decoration:none}
.bco-page-card-title{display:block;font-weight:700;color:var(--text);margin-bottom:6px;font-size:16px}
.bco-page-card-desc{display:block;color:var(--text-dim);font-size:13.5px;line-height:1.5}

/* ---- section shell ---- */
.bco-section{padding:44px 0}
.bco-section-head{max-width:640px;margin:0 0 22px}
.bco-eyebrow{display:inline-block;font-family:ui-monospace,'Andale Mono',Menlo,Consolas,monospace;
  font-size:12px;letter-spacing:.08em;color:var(--accent);margin-bottom:10px}
.bco-section-title{margin:0 0 8px;font-size:22px;color:var(--text)}
.bco-section-lede{margin:0;color:var(--text-dim);font-size:14.5px}

/* ---- breadcrumbs ---- */
.bco-crumbs{padding:16px 0 0}
.bco-crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;font-size:12.5px;color:var(--muted)}
.bco-crumbs li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--border-strong)}
.bco-crumbs a{color:var(--text-dim)}
.bco-crumbs li[aria-current]{color:var(--text-dim)}

/* ---- article ---- */
.bco-article-wrap{padding:26px 0 10px}
.bco-article{max-width:760px;background:var(--panel);border:1px solid var(--border);
  border-radius:16px;padding:34px clamp(20px,4vw,44px)}
.bco-article h1{font-size:clamp(24px,4vw,32px);line-height:1.25;margin:0 0 18px;color:#fff}
.bco-article h2{font-size:19px;margin:34px 0 12px;color:#fff;border-top:1px solid var(--border);padding-top:22px}
.bco-article h2:first-of-type{border-top:none;padding-top:0;margin-top:8px}
.bco-article h3{font-size:15.5px;margin:18px 0 6px;color:var(--text)}
.bco-article p{margin:0 0 14px;color:var(--text-dim);font-size:15px;overflow-wrap:break-word}
.bco-article a{color:var(--accent)}
.bco-article table{width:100%;border-collapse:collapse;table-layout:fixed;margin:14px 0 20px;font-size:13.5px}
.bco-article table td,.bco-article table th{border:1px solid var(--border-strong);padding:9px 12px;
  overflow-wrap:anywhere;text-align:left;color:var(--text-dim)}
.bco-article table tr:first-child td{color:var(--text);background:var(--panel-2)}
@media (max-width:560px){
  .bco-article table{font-size:12px}
  .bco-article table td,.bco-article table th{padding:6px 8px}
}
.bco-faq{margin-top:8px}
.bco-faq h3{cursor:pointer;position:relative;padding-right:26px;user-select:none}
.bco-faq h3::after{content:"+";position:absolute;right:0;top:0;color:var(--accent);font-size:17px}
.bco-faq h3.is-open::after{content:"–"}
.bco-faq h3:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---- footer ---- */
.bco-footer{border-top:1px solid var(--border);background:#111417;margin-top:40px}
.bco-footer-inner{max-width:1180px;margin:0 auto;padding:32px 20px 40px;
  display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between}
.bco-footer-nav{display:flex;flex-wrap:wrap;align-items:center;gap:18px}
.bco-footer-nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:14px;margin:0;padding:0}
.bco-footer-nav a{color:var(--text-dim);font-size:13.5px}
.bco-footer-legal{max-width:440px}
.bco-responsible{font-size:12.5px;color:var(--text-dim);margin:0 0 6px}
.bco-copyright{font-size:12px;color:var(--muted);margin:0}

/* ---- overview hero (form-styled decorative panel) ---- */
.bco-hero{background:radial-gradient(ellipse at 82% 0%,rgba(0,123,255,.16),transparent 55%),var(--bg);
  border-bottom:1px solid var(--border);padding:52px 0 44px}
.bco-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center}
.bco-hero-head{font-size:clamp(26px,4vw,36px);line-height:1.2;color:#fff;margin:0 0 14px}
.bco-hero-lede{color:var(--text-dim);font-size:15.5px;margin:0 0 20px;max-width:480px}
.bco-hero-actions{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.bco-hero-form{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:26px;position:relative}
.bco-hero-form-cap{display:block;font-size:12px;color:var(--muted);margin-bottom:16px;text-align:center}
.bco-field{margin-bottom:14px}
.bco-field-label{display:block;font-size:11.5px;color:var(--muted);margin-bottom:6px;letter-spacing:.03em}
.bco-field-bar{height:38px;border-radius:8px;background:var(--panel-2);border:1px solid var(--border-strong)}
.bco-field-btn{margin-top:18px;height:42px;border-radius:8px;background:linear-gradient(90deg,var(--green),var(--green-bright));opacity:.9}
@media (max-width:860px){
  .bco-hero-grid{grid-template-columns:1fr}
  .bco-hero-form{max-width:360px}
}

/* ---- sport preview widget ---- */
.bco-odds{max-width:760px;margin:0 auto}
.bco-odds-note{font-size:12px;color:var(--muted);margin:0 0 14px}
.bco-odds-row{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;
  padding:14px 16px;background:var(--panel);border:1px solid var(--border);border-radius:12px;margin-bottom:10px}
.bco-odds-teams{color:var(--text);font-size:14px;min-width:0;overflow-wrap:break-word}
.bco-odds-league{display:block;font-size:11px;color:var(--muted);margin-bottom:2px}
.bco-odds-vals{display:flex;gap:8px;font-variant-numeric:tabular-nums;flex-wrap:wrap}
.bco-odds-val{background:var(--panel-2);border:1px solid var(--border-strong);border-radius:6px;
  padding:6px 10px;font-size:13px;color:var(--text);min-width:52px;text-align:center}