:root{
  --cb-primary:#2D5BE3;
  --cb-primary-dark:#1E40AF;
  --cb-sidebar:#0F1A3A;
  --cb-sidebar-muted:#9AA7C7;
  --cb-bg:#F3F6FB;
  --cb-card:#FFFFFF;
  --cb-text:#1E293B;
  --cb-muted:#64748B;
  --cb-border:#E8EDF5;
  --cb-radius:14px;
  --cb-shadow:0 1px 3px rgba(16,30,60,.06),0 1px 2px rgba(16,30,60,.04);
}
body{
  margin:0;background:var(--cb-bg);color:var(--cb-text);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:14px;
}

/* ---------- Layout ---------- */
.cb-layout{display:flex;min-height:100vh}

/* ---------- Sidebar ---------- */
.cb-sidebar{
  width:248px;background:var(--cb-sidebar);color:#fff;flex-shrink:0;
  display:flex;flex-direction:column;padding:18px 0;position:fixed;top:0;left:0;bottom:0;z-index:1040;
}
.cb-brand{display:flex;align-items:center;gap:10px;padding:6px 22px 22px;font-size:19px;font-weight:700;color:#fff;text-decoration:none}
.cb-brand .cb-logo{width:34px;height:34px;border-radius:9px;background:var(--cb-primary);display:grid;place-items:center;color:#fff;font-size:18px}
.cb-nav{display:flex;flex-direction:column;gap:2px;padding:0 12px}
.cb-nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;color:var(--cb-sidebar-muted);text-decoration:none;font-weight:500;transition:.15s}
.cb-nav a i{font-size:18px;width:20px;text-align:center}
.cb-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.cb-nav a.active{background:var(--cb-primary);color:#fff;box-shadow:0 4px 12px rgba(45,91,227,.4)}
.cb-nav a.disabled{opacity:.45;pointer-events:none}
.cb-sidebar-foot{margin-top:auto;padding:16px 22px;color:var(--cb-sidebar-muted);font-size:12px}

/* ---------- Main ---------- */
.cb-main{flex:1;display:flex;flex-direction:column;min-width:0;margin-left:248px}
.cb-topbar{background:#fff;border-bottom:1px solid var(--cb-border);display:flex;align-items:center;justify-content:space-between;padding:14px 28px;position:sticky;top:0;z-index:1030}
.cb-topbar h1{font-size:20px;font-weight:700;margin:0}
.cb-burger{display:none;border:none;background:none;font-size:24px;color:var(--cb-text);margin-right:8px}
.cb-topbar-right{display:flex;align-items:center;gap:18px}
.cb-iconbtn{position:relative;width:40px;height:40px;border-radius:10px;border:1px solid var(--cb-border);background:#fff;display:grid;place-items:center;color:var(--cb-muted);font-size:18px;cursor:pointer;text-decoration:none}
.cb-badge-dot{position:absolute;top:8px;right:9px;width:8px;height:8px;border-radius:50%;background:#EF4444;border:2px solid #fff}
.cb-user{display:flex;align-items:center;gap:10px}
.cb-avatar{width:40px;height:40px;border-radius:50%;background:#DBE4FF;color:var(--cb-primary-dark);display:grid;place-items:center;font-weight:700}
.cb-user small{display:block;color:var(--cb-muted);font-size:12px;line-height:1}
.cb-user strong{font-size:14px;line-height:1.2}
.cb-content{padding:24px 28px;flex:1}

/* ---------- Cards ---------- */
.cb-card{background:var(--cb-card);border:1px solid var(--cb-border);border-radius:var(--cb-radius);box-shadow:var(--cb-shadow)}
.cb-card-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--cb-border)}
.cb-card-head h2{font-size:16px;font-weight:700;margin:0}
.cb-card-body{padding:18px 20px}

/* ---------- Stat cards ---------- */
.cb-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}
.cb-stat{background:var(--cb-card);border:1px solid var(--cb-border);border-radius:var(--cb-radius);padding:20px;box-shadow:var(--cb-shadow);display:flex;align-items:center;justify-content:space-between}
.cb-stat .v{font-size:30px;font-weight:700;line-height:1}
.cb-stat .l{color:var(--cb-muted);font-size:13px;margin-top:6px}
.cb-stat .ic{width:50px;height:50px;border-radius:12px;display:grid;place-items:center;font-size:23px}
.ic-blue{background:#E7EEFE;color:#2D5BE3}
.ic-amber{background:#FEF3E2;color:#E08A00}
.ic-teal{background:#E2F6F0;color:#0E9F6E}
.ic-violet{background:#EEEAFE;color:#6D4ED6}

/* ---------- Pills / badges ---------- */
.cb-pill{font-size:11px;font-weight:600;padding:4px 10px;border-radius:20px;white-space:nowrap;display:inline-block}
.p-open{background:#E7EEFE;color:#1E40AF}
.p-bidding{background:#E2F0FB;color:#0B6BB3}
.p-road{background:#FEF3E2;color:#B45309}
.p-done{background:#E2F6F0;color:#0E7C57}
.p-closed{background:#EEF1F6;color:#475569}
.p-cancel{background:#FDE8E8;color:#B91C1C}
.p-winner{background:#FEF3E2;color:#B45309}

/* ---------- Tables ---------- */
.cb-table{width:100%;border-collapse:collapse}
.cb-table th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--cb-muted);font-weight:600;padding:12px 16px;border-bottom:1px solid var(--cb-border)}
.cb-table td{padding:14px 16px;border-bottom:1px solid var(--cb-border)}
.cb-table tr:last-child td{border-bottom:0}
.cb-table tbody tr:hover{background:#FAFBFE}

/* ---------- Generic helpers ---------- */
.cb-page-actions{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.btn-cb-primary{background:var(--cb-primary);border-color:var(--cb-primary);color:#fff}
.btn-cb-primary:hover{background:var(--cb-primary-dark);border-color:var(--cb-primary-dark);color:#fff}

/* breadcrumb tweak */
.breadcrumb{font-size:13px;margin-bottom:16px}

/* notification bell badge */
.cb-badge-count{position:absolute;top:-6px;right:-6px;min-width:18px;height:18px;padding:0 4px;
  background:#EF4444;color:#fff;border-radius:9px;font-size:11px;font-weight:700;line-height:18px;
  text-align:center;border:2px solid #fff}
.cb-iconbtn{position:relative}

/* chat */
.cb-chat-avatar{width:42px;height:42px;border-radius:50%;background:#DBE4FF;color:var(--cb-primary-dark);
  display:grid;place-items:center;font-weight:700;flex-shrink:0}
.cb-chat-box{display:flex;flex-direction:column;height:62vh;min-height:420px}
.cb-chat-msgs{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:10px;background:#F7F9FD}
.cb-msg{max-width:72%;padding:9px 13px;border-radius:14px;font-size:14px;line-height:1.4;position:relative}
.cb-msg .t{display:block;font-size:10px;opacity:.7;margin-top:3px;text-align:right}
.cb-msg-them{align-self:flex-start;background:#fff;border:1px solid var(--cb-border);border-bottom-left-radius:4px}
.cb-msg-mine{align-self:flex-end;background:var(--cb-primary);color:#fff;border-bottom-right-radius:4px}
.cb-chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--cb-border);background:#fff}
.cb-chat-input input{flex:1}

/* language switcher */
.cb-lang{display:flex;gap:4px;align-items:center}
.cb-lang a{padding:5px 9px;border-radius:8px;font-size:12px;font-weight:600;color:var(--cb-muted);text-decoration:none;border:1px solid var(--cb-border);line-height:1}
.cb-lang a:hover{color:var(--cb-text)}
.cb-lang a.active{background:var(--cb-primary);color:#fff;border-color:var(--cb-primary)}

/* ---------- Guest (login/signup) ---------- */
.cb-guest{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--cb-bg);padding:24px}
.cb-guest-card{background:#fff;border-radius:18px;box-shadow:0 10px 40px rgba(16,30,60,.10);width:100%;max-width:440px;padding:38px 34px}
.cb-guest-wide{max-width:560px}
.cb-guest-brand{display:flex;align-items:center;gap:10px;justify-content:center;font-size:22px;font-weight:700;margin-bottom:6px}
.cb-guest-brand .cb-logo{width:38px;height:38px;border-radius:10px;background:var(--cb-primary);display:grid;place-items:center;color:#fff;font-size:20px}
.cb-guest-sub{text-align:center;color:var(--cb-muted);margin-bottom:24px}

/* ---------- Responsive ---------- */
@media (max-width:992px){
  .cb-sidebar{transform:translateX(-100%);transition:transform .2s}
  body.cb-sidebar-open .cb-sidebar{transform:translateX(0)}
  .cb-main{margin-left:0}
  .cb-burger{display:block}
  .cb-stats{grid-template-columns:repeat(2,1fr)}
  .cb-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:1035}
  body.cb-sidebar-open .cb-backdrop{display:block}
}
@media (max-width:576px){
  .cb-stats{grid-template-columns:1fr}
  .cb-content{padding:18px 16px}
  .cb-user strong,.cb-user small{display:none}
}