/* cbc-byteclass.css (v597, ByteClass R1) - Aurora Glass for the cohort classroom. All rules are scoped under
   .bcl-scope so nothing leaks into the rest of the site. Mirrors the ByteLabs token model; theme-aware. */
.bcl-scope{
  --bcl-brand:#5B4BE8; --bcl-brand2:#8B5CF6; --bcl-pink:#FF5CA8;
  --bcl-hero:linear-gradient(125deg,#5B4BE8,#8B5CF6 55%,#FF5CA8);
  --bcl-bg:#f4f3fb; --bcl-surface:#ffffff; --bcl-surface2:#f7f6fd; --bcl-sunk:#efedf9;
  --bcl-ink:#2b2748; --bcl-ink2:#3a3658; --bcl-mut:#7d799b; --bcl-line:#e7e4f5;
  --bcl-green:#16a34a; --bcl-amber:#d97706; --bcl-rose:#e11d48; --bcl-teal:#16C5E0;
  --bcl-shadow:0 14px 40px rgba(31,25,74,.12); --bcl-shadow-sm:0 3px 12px rgba(31,25,74,.08);
  --bcl-r:20px; --bcl-r-sm:14px;
  background:radial-gradient(120% 70% at 50% -8%, color-mix(in srgb,var(--bcl-brand) 16%,var(--bcl-bg)), var(--bcl-bg) 60%);
  color:var(--bcl-ink); font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  line-height:1.55; margin:0; -webkit-font-smoothing:antialiased; min-height:100vh;
}
@media (prefers-color-scheme:dark){ .bcl-scope{
  --bcl-bg:#100e1c; --bcl-surface:#1d1a2c; --bcl-surface2:#241f37; --bcl-sunk:#191527;
  --bcl-ink:#efedfb; --bcl-ink2:#d6d2f0; --bcl-mut:#9a95bd; --bcl-line:rgba(255,255,255,.10);
  --bcl-shadow:0 18px 48px rgba(0,0,0,.55); --bcl-shadow-sm:0 3px 12px rgba(0,0,0,.4);
}}

.bcl-scope *{box-sizing:border-box}
.bcl-scope h1,.bcl-scope h2,.bcl-scope h3{margin:0;line-height:1.15;font-weight:800;text-wrap:balance}
.bcl-scope a{color:inherit}
.bcl-wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* top nav */
.bcl-top{display:flex;align-items:center;gap:14px;padding:16px 20px;max-width:1080px;margin:0 auto}
.bcl-brandlink{display:flex;align-items:center;gap:9px;font-weight:900;letter-spacing:-.02em;text-decoration:none;font-size:1.05rem}
.bcl-brandlink .m{width:28px;height:28px;border-radius:9px;background:var(--bcl-hero);display:grid;place-items:center;color:#fff;box-shadow:var(--bcl-shadow-sm)}
.bcl-nav{margin-left:auto;display:flex;align-items:center;gap:16px}
.bcl-nav a{text-decoration:none;font-weight:700;font-size:.9rem;color:var(--bcl-ink2)}
.bcl-nav a.bcl-signin{background:var(--bcl-hero);color:#fff;padding:8px 15px;border-radius:999px;box-shadow:var(--bcl-shadow-sm)}

/* hero */
.bcl-hero{position:relative;overflow:hidden;border-radius:26px;background:var(--bcl-hero);color:#fff;padding:40px 30px 44px;margin:6px 0 22px}
.bcl-hero .z{position:relative;z-index:2;max-width:640px}
.bcl-hero:after{content:"";position:absolute;inset:0;background:radial-gradient(60% 90% at 82% -10%,rgba(255,255,255,.32),transparent 60%);z-index:1}
.bcl-hero .eyebrow{font-size:.72rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;opacity:.9}
.bcl-hero h1{font-size:clamp(1.9rem,4.5vw,2.7rem);font-weight:900;letter-spacing:-.02em;margin:8px 0 10px}
.bcl-hero p{font-size:1.02rem;opacity:.96}

/* filter pills */
.bcl-cats{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin:0 0 20px}
.bcl-levlab{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--bcl-mut)}
.bcl-cat{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-weight:700;font-size:.85rem;
  padding:9px 15px;border-radius:999px;border:1px solid var(--bcl-line);background:var(--bcl-surface);color:var(--bcl-ink2);box-shadow:var(--bcl-shadow-sm)}
.bcl-cat .dot{width:10px;height:10px;border-radius:50%}
.bcl-cat.on{border-color:transparent;color:#fff;background:var(--tc,var(--bcl-brand))}

/* cohort grid */
.bcl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.bcl-card{display:block;text-decoration:none;color:inherit;background:var(--bcl-surface);border:1px solid var(--bcl-line);
  border-radius:var(--bcl-r);overflow:hidden;box-shadow:var(--bcl-shadow-sm);transition:transform .18s ease,box-shadow .18s ease}
.bcl-card:hover{transform:translateY(-3px);box-shadow:var(--bcl-shadow)}
.bcl-card .cap{display:block;height:8px;background:var(--bcl-hero)}
.bcl-card .in{padding:17px}
.bcl-card .row{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:9px}
.bcl-card h3{font-size:1.08rem;letter-spacing:-.01em;margin:2px 0 6px}
.bcl-card p{color:var(--bcl-mut);font-size:.9rem;margin:0}
.bcl-card .foot{display:flex;align-items:center;gap:8px;margin-top:13px;font-size:.82rem;color:var(--bcl-mut)}
.bcl-tag{display:inline-flex;align-items:center;gap:5px;font-size:.7rem;font-weight:800;padding:4px 10px;border-radius:999px;color:#fff}
.bcl-tag.g{background:var(--bcl-sunk);color:var(--bcl-ink2)}

/* article / cohort landing */
.bcl-article{background:var(--bcl-surface);border:1px solid var(--bcl-line);border-radius:var(--bcl-r);box-shadow:var(--bcl-shadow-sm);padding:26px;margin:0 0 20px}
.bcl-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.bcl-h1{font-size:clamp(1.5rem,3.4vw,2rem);letter-spacing:-.02em;margin:0 0 8px}
.bcl-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin:18px 0}
.bcl-fact{background:var(--bcl-surface2);border:1px solid var(--bcl-line);border-radius:14px;padding:13px}
.bcl-fact b{display:block;font-size:1.05rem;font-weight:900}
.bcl-fact span{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;color:var(--bcl-mut);font-weight:800}
.bcl-mod{display:flex;gap:13px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--bcl-line)}
.bcl-mod:last-child{border-bottom:0}
.bcl-mod .n{width:30px;height:30px;border-radius:9px;flex:none;display:grid;place-items:center;font-weight:900;font-size:.82rem;color:#fff;background:var(--bcl-brand)}
.bcl-mod .t{font-weight:800;font-size:.98rem}.bcl-mod .s{color:var(--bcl-mut);font-size:.85rem;margin-top:2px}

/* buttons */
.bcl-btn{display:inline-block;background:var(--bcl-hero);color:#fff;text-decoration:none;font-weight:800;font-size:.95rem;padding:12px 20px;border-radius:13px;border:0;cursor:pointer;box-shadow:var(--bcl-shadow-sm);font-family:inherit}
.bcl-scope a.bcl-btn{color:#fff}
.bcl-btn.ghost{background:color-mix(in srgb,var(--bcl-brand) 12%,var(--bcl-surface));color:var(--bcl-brand)}
.bcl-scope a.bcl-btn.ghost{color:var(--bcl-brand)}
.bcl-btn:active{transform:translateY(1px)}

/* empty state */
.bcl-empty{background:var(--bcl-surface);border:1px dashed var(--bcl-line);border-radius:var(--bcl-r);padding:34px;text-align:center;color:var(--bcl-mut)}

/* console panels (trainer + admin reuse these) */
.bcl-panel{background:var(--bcl-surface);border:1px solid var(--bcl-line);border-radius:var(--bcl-r-sm);padding:16px;box-shadow:var(--bcl-shadow-sm);margin-bottom:14px}
.bcl-in,.bcl-ta,.bcl-sel{width:100%;padding:10px 12px;border:1px solid var(--bcl-line);border-radius:11px;background:var(--bcl-surface);color:var(--bcl-ink);font-family:inherit;font-size:.92rem}
.bcl-ta{min-height:74px;resize:vertical}
.bcl-label{display:block;font-weight:700;font-size:.82rem;margin:0 0 5px;color:var(--bcl-ink2)}
.bcl-field{margin-bottom:13px}
.bcl-msg{border-radius:12px;padding:12px 14px;margin:0 0 14px;font-weight:600}
.bcl-msg.ok{background:color-mix(in srgb,var(--bcl-green) 15%,var(--bcl-surface));color:var(--bcl-green)}
.bcl-msg.err{background:color-mix(in srgb,var(--bcl-rose) 14%,var(--bcl-surface));color:var(--bcl-rose)}
.bcl-pill{font-size:.7rem;font-weight:800;padding:3px 9px;border-radius:999px;display:inline-block}
.bcl-pill.g{background:color-mix(in srgb,var(--bcl-green) 16%,var(--bcl-surface));color:var(--bcl-green)}
.bcl-pill.a{background:color-mix(in srgb,var(--bcl-amber) 18%,var(--bcl-surface));color:var(--bcl-amber)}
.bcl-pill.r{background:color-mix(in srgb,var(--bcl-rose) 15%,var(--bcl-surface));color:var(--bcl-rose)}
.bcl-pill.b{background:color-mix(in srgb,var(--bcl-brand) 14%,var(--bcl-surface));color:var(--bcl-brand)}

.bcl-footpad{height:30px}
@media (prefers-reduced-motion:reduce){.bcl-scope *{animation:none!important;transition:none!important}}