/* qp-hub-2026-10-01 — shared shell for the Blog / Tools / Community / Profile pages (Andy's CryptoLearn look:
   near-black page, gray-800 cards on gray-700 borders, indigo primary, sky accent, Inter). */
:root{
  --hub-bg:#030712; --hub-panel:#1f2937; --hub-panel-2:#111827; --hub-line:#374151; --hub-line-2:#4b5563;
  --hub-ink:#f9fafb; --hub-ink-2:#d1d5db; --hub-muted:#9ca3af; --hub-dim:#6b7280;
  --hub-primary:#4338ca; --hub-primary-2:#4f46e5; --hub-accent:#38bdf8; --hub-pink:#db2777;
  --hub-green:#34d399; --hub-red:#f87171; --hub-amber:#fbbf24;
  --hub-radius:12px; --hub-font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.qp-hub{margin:0;background:var(--hub-bg);color:var(--hub-ink);font:15px/1.6 var(--hub-font);-webkit-font-smoothing:antialiased;min-height:100vh}
.qp-hub a{color:inherit}
.hub-wrap{max-width:1180px;margin:0 auto;padding:40px 20px 72px}
.hub-h1{font-size:clamp(1.7rem,1.3rem + 1.6vw,2.3rem);font-weight:800;letter-spacing:-.02em;margin:0 0 .4rem}
.hub-lede{color:var(--hub-muted);max-width:68ch;margin:0 0 2rem}
.hub-grad{background:linear-gradient(90deg,var(--hub-accent),var(--hub-primary-2));-webkit-background-clip:text;background-clip:text;color:transparent}

/* header */
.hub-head{position:sticky;top:0;z-index:50;background:rgba(17,24,39,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--hub-line)}
.hub-nav{max-width:1180px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:20px}
.hub-brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:1.15rem;color:#fff;flex:0 0 auto}
.hub-brand i{color:var(--hub-accent);font-size:1.3rem}
/* qp-nav-brand-management-2026-10-01 — small "Management" under Auto-Liquidity (matches the home nav) */
.hub-brand-stack{display:flex;flex-direction:column;line-height:1.05}
.hub-brand-sub{font-size:.62em;font-weight:600;letter-spacing:.06em;color:rgba(255,255,255,.62);margin-top:2px}
/* qp-grad-words-2026-10-01 — same teal→blue as the home nav's "Auto" */
.hub-grad{background:linear-gradient(96deg,#2dd4bf 0%,#38bdf8 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#38bdf8}
.hub-links{display:flex;gap:22px;flex:1;justify-content:center;list-style:none;margin:0;padding:0}
.hub-links a{text-decoration:none;color:var(--hub-ink-2);font-size:.95rem;transition:color .15s}
.hub-links a:hover,.hub-links a.on{color:#fff}
.hub-links a.on{font-weight:600}
.hub-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.hub-prof{position:relative;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--hub-ink-2);
  background:rgba(255,255,255,.04);border:1px solid var(--hub-line);text-decoration:none;transition:color .15s,background .15s,transform .1s}
.hub-prof:hover{color:#fff;background:rgba(255,255,255,.08)}
.hub-prof:active{transform:scale(.95)}
.hub-prof svg{width:20px;height:20px}
.hub-prof .dot{position:absolute;right:2px;bottom:2px;width:10px;height:10px;border-radius:50%;background:var(--hub-green);border:2px solid #111827;display:none}
.hub-prof.in .dot{display:block}
.hub-burger{display:none;background:none;border:0;color:var(--hub-ink-2);font-size:1.25rem;cursor:pointer;padding:8px}
.hub-mmenu{display:none;border-top:1px solid var(--hub-line);padding:8px 20px 16px}
.hub-mmenu a{display:block;padding:10px 12px;border-radius:8px;text-decoration:none;color:var(--hub-ink-2)}
.hub-mmenu a:hover,.hub-mmenu a.on{background:var(--hub-line);color:#fff}
.hub-head.open .hub-mmenu{display:block}
@media (max-width:900px){ .hub-links{display:none} .hub-burger{display:block} }

/* shared bits */
.hub-card{background:var(--hub-panel);border:1px solid var(--hub-line);border-radius:var(--hub-radius)}
.hub-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--hub-primary);color:#fff;border:0;border-radius:8px;
  padding:10px 18px;font:600 .95rem var(--hub-font);cursor:pointer;text-decoration:none;transition:background .15s,transform .1s}
.hub-btn:hover{background:var(--hub-primary-2)}
.hub-btn:active{transform:scale(.97)}
.hub-btn.ghost{background:transparent;border:1px solid var(--hub-line-2);color:var(--hub-ink-2)}
.hub-btn.ghost:hover{background:var(--hub-line);color:#fff}
.hub-btn:disabled{opacity:.55;cursor:not-allowed}
.hub-input,.hub-select,.hub-textarea{width:100%;background:#374151;border:1px solid var(--hub-line-2);border-radius:8px;color:#fff;padding:10px 14px;font:inherit}
.hub-input:focus,.hub-select:focus,.hub-textarea:focus{outline:none;box-shadow:0 0 0 2px var(--hub-primary-2)}
.hub-label{display:block;font-size:.85rem;font-weight:500;color:var(--hub-ink-2);margin-bottom:6px}
.hub-foot{border-top:1px solid var(--hub-line);margin-top:56px;padding:28px 20px;text-align:center;color:var(--hub-dim);font-size:.85rem}
.hub-foot a{color:var(--hub-muted)}
.hub-toast{position:fixed;right:20px;bottom:20px;z-index:100;padding:12px 16px;border-radius:8px;color:#fff;font-weight:500;
  box-shadow:0 10px 15px -3px rgba(0,0,0,.3);border:1px solid rgba(255,255,255,.2);background:#2563eb;animation:hubToast .3s ease-out}
.hub-toast.ok{background:#059669} .hub-toast.err{background:#dc2626}
@keyframes hubToast{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
:focus-visible{outline:2px solid var(--hub-accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}