:root{
  --forest:#0b3d2e; --forest-deep:#082a20; --charcoal:#14181a; --charcoal-2:#1b2225;
  --paper:#f6f8f6; --card:#ffffff; --ink:#101614; --muted:#5b6b63;
  --line:#e2e8e4; --line-dark:rgba(255,255,255,.10);
  --accent:#3ddc84; --accent-deep:#22b467; --accent-ink:#063b1f;
  --good:#22b467; --bad:#e0553f; --warn:#d99a2b;
  --radius:16px; --radius-sm:10px;
  --shadow:0 8px 30px rgba(6,20,14,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--paper); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  line-height:1.55; -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-deep)}
.wrap{max-width:1080px;margin:0 auto;padding:32px 20px 80px}
.narrow{max-width:640px;margin:0 auto;padding:32px 20px 80px}

/* ---------- Brand bar (app chrome) ---------- */
.brandbar{
  display:flex;align-items:center;justify-content:space-between;padding:16px 24px;
  background:linear-gradient(180deg,var(--forest) 0%,var(--forest-deep) 100%);
  border-bottom:1px solid var(--line-dark);
}
.brandbar .out{
  font-weight:800;letter-spacing:.04em;color:#eafff2;font-size:13px;text-transform:uppercase;
  display:flex;align-items:center;gap:8px;text-decoration:none;
}
.brandbar .out:hover{color:var(--accent)}
.brandbar .out .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block}
.brandbar .client{display:flex;align-items:center;gap:10px;font-weight:600;font-size:15px;color:#fff}
.brandbar .client img{height:26px;width:auto;border-radius:4px;background:#fff;padding:2px}
.brandbar .badge.neutral{background:rgba(255,255,255,.12);color:#dff5e8}

/* ---------- App surface (learner / admin screens run on charcoal) ---------- */
body.app{background:var(--charcoal);color:#eef3ef}
body.app .card{background:var(--charcoal-2);border-color:var(--line-dark);color:#eef3ef;box-shadow:0 10px 34px rgba(0,0,0,.35)}
body.app h1,body.app h2{color:#fff}
body.app p,body.app label{color:#cfe0d7}
body.app .muted{color:#8aa197}
body.app .footer-links{color:#6c7f75}
body.app input[type=text],body.app input[type=email],body.app input[type=password],
body.app select,body.app textarea{
  background:#0f1416;border-color:var(--line-dark);color:#eef3ef
}
body.app table th{color:#8aa197}
body.app th,body.app td{border-bottom-color:var(--line-dark)}
body.app .option{border-color:var(--line-dark)}
body.app .option:hover{border-color:var(--accent)}
body.app .placeholder-asset{background:#0f1416;border-color:var(--line-dark);color:#8aa197}
body.app .progress{background:#0f1416}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:20px;box-shadow:var(--shadow)}
h1{font-size:30px;font-weight:800;margin:0 0 12px;letter-spacing:-.01em}
h2{font-size:20px;font-weight:700;margin:0 0 10px}
p{color:var(--ink)}
.muted{color:var(--muted)}

.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);border:none;padding:13px 24px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;text-decoration:none;transition:transform .1s ease,background .15s ease}
.btn:hover{background:var(--accent-deep);color:#fff}
.btn:active{transform:scale(.98)}
.btn.secondary{background:transparent;color:var(--accent-deep);border:1px solid var(--accent-deep)}
body.app .btn.secondary{color:var(--accent);border-color:var(--accent)}
.btn.ghost{background:transparent;color:inherit;border:1px solid var(--line)}
body.app .btn.ghost{border-color:var(--line-dark)}
.btn.block{display:block;width:100%;text-align:center}
.btn.lg{padding:16px 30px;font-size:17px}

input[type=text],input[type=email],input[type=password],input[type=file],select,textarea{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;font-size:15px;background:#fff;color:var(--ink)
}
label{display:block;font-size:13px;font-weight:600;margin:14px 0 6px;color:#374151}
body.app label{color:#a9c0b5}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:700;font-size:11px;text-transform:uppercase;letter-spacing:.04em}
.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:700}
.badge.ok{background:#e3f9ec;color:var(--good)}
.badge.warn{background:#fdf1de;color:#a1650f}
.badge.bad{background:#fbe9e5;color:var(--bad)}
.badge.neutral{background:#eef0f4;color:var(--muted)}
body.app .badge.ok{background:rgba(34,180,103,.16)}
body.app .badge.warn{background:rgba(217,154,43,.16);color:#e8b458}
body.app .badge.bad{background:rgba(224,85,63,.16)}
body.app .badge.neutral{background:rgba(255,255,255,.08);color:#a9c0b5}

.progress{height:8px;background:#eef0f4;border-radius:99px;overflow:hidden}
.progress > div{height:100%;background:linear-gradient(90deg,var(--accent-deep),var(--accent))}
.stat{display:inline-block;min-width:130px;margin-right:28px;margin-bottom:10px}
.stat .n{font-size:32px;font-weight:800}
.stat .l{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
body.app .stat .l{color:#8aa197}

.module-nav{display:flex;justify-content:space-between;margin-top:26px}
.option{display:block;border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin-bottom:10px;cursor:pointer}
.option:hover{border-color:var(--accent-deep)}
.option input{margin-right:10px}

.placeholder-asset{border:2px dashed var(--line);border-radius:14px;padding:30px;text-align:center;color:var(--muted);background:#f6f5f1;font-size:13px}
.placeholder-asset .tag{display:block;font-weight:700;letter-spacing:.03em;text-transform:uppercase;font-size:11px;color:var(--accent-deep);margin-bottom:6px}
.asset-16x9{aspect-ratio:16/9}
.asset-1x1{aspect-ratio:1/1}
.asset-4x3{aspect-ratio:4/3}
.placeholder-asset{display:flex;flex-direction:column;align-items:center;justify-content:center}

.footer-links{margin-top:40px;font-size:13px;color:var(--muted)}
.error{background:#fbe9e5;color:var(--bad);padding:12px 14px;border-radius:9px;margin-bottom:16px;font-size:14px}
.success{background:#e3f9ec;color:var(--good);padding:12px 14px;border-radius:9px;margin-bottom:16px;font-size:14px}
.filters a{margin-right:10px;font-size:13px;color:var(--muted);text-decoration:none}
.filters a.active{color:var(--accent-deep);font-weight:700}
body.app .filters a.active{color:var(--accent)}

/* ---------- Marketing site (public product page) ---------- */
.pm-hero{background:radial-gradient(circle at 20% -10%,rgba(61,220,132,.25),transparent 55%),linear-gradient(160deg,var(--forest) 0%,var(--forest-deep) 60%,var(--charcoal) 100%);color:#fff}
.pm-nav{display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:0 auto;padding:20px 24px}
.pm-nav .brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em;color:#fff;text-decoration:none;font-size:16px}
.pm-nav .brand img{height:30px}
.pm-nav .links{display:flex;gap:26px;align-items:center}
.pm-nav .links a{color:#dff5e8;text-decoration:none;font-size:14px;font-weight:600}
.pm-nav .links a:hover{color:var(--accent)}
.pm-hero-inner{max-width:900px;margin:0 auto;padding:70px 24px 100px;text-align:center}
.pm-eyebrow{display:inline-block;background:rgba(61,220,132,.14);color:var(--accent);border:1px solid rgba(61,220,132,.35);padding:6px 16px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;margin-bottom:22px}
.pm-hero h1{font-size:clamp(34px,5vw,56px);font-weight:800;letter-spacing:-.02em;margin:0 0 20px;color:#fff}
.pm-hero p.lead{font-size:19px;color:#cfe6d9;max-width:640px;margin:0 auto 34px}
.pm-cta-row{display:flex;gap:14px;justify-content:center;flex-wrap}

.pm-section{max-width:1180px;margin:0 auto;padding:76px 24px}
.pm-section.tight{padding-top:0}
.pm-section h2{font-size:clamp(24px,3vw,32px);letter-spacing:-.01em;margin:0 0 14px;text-align:center}
.pm-section p.center{text-align:center;color:var(--muted);max-width:640px;margin:0 auto 46px;font-size:16px}
.pm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pm-grid.two{grid-template-columns:repeat(2,1fr)}
.pm-tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.pm-tile .ic{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-deep));display:flex;align-items:center;justify-content:center;color:#06301c;font-weight:800;font-size:18px;margin-bottom:16px}
.pm-tile h3{margin:0 0 8px;font-size:17px}
.pm-tile p{color:var(--muted);font-size:14px;margin:0}

.pm-dark{background:var(--charcoal);color:#eef3ef}
.pm-dark .pm-tile{background:var(--charcoal-2);border-color:var(--line-dark);color:#eef3ef}
.pm-dark .pm-tile p{color:#9fb3aa}
.pm-dark h2{color:#fff}

.pm-course{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--card);box-shadow:var(--shadow)}
.pm-course .thumb{aspect-ratio:16/9;background:linear-gradient(135deg,var(--forest),var(--charcoal));display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase}
.pm-course .body{padding:20px;color:var(--ink)}
.pm-course .body h3{margin:0 0 6px;font-size:16px;color:var(--ink)}
.pm-course .body p{margin:0;color:var(--muted);font-size:13px}
.pm-course .badge{margin-top:10px}

.pm-stats{display:flex;justify-content:center;gap:60px;flex-wrap:wrap;margin-top:20px}
.pm-stats .item{text-align:center}
.pm-stats .item .n{font-size:38px;font-weight:800;color:var(--accent)}
.pm-stats .item .l{font-size:12px;color:#9fb3aa;text-transform:uppercase;letter-spacing:.04em;margin-top:4px}

.pm-cta-band{background:linear-gradient(135deg,var(--forest),var(--forest-deep));border-radius:24px;max-width:1180px;margin:0 auto 76px;padding:56px 40px;text-align:center;color:#fff}
.pm-cta-band h2{color:#fff;margin-bottom:10px}
.pm-cta-band p{color:#cfe6d9;margin-bottom:26px}

.pm-footer{border-top:1px solid var(--line);padding:34px 24px;text-align:center;color:var(--muted);font-size:13px}
.pm-footer a{color:var(--muted)}

@media (max-width:860px){
  .pm-grid{grid-template-columns:1fr 1fr}
  .pm-nav .links{display:none}
  .pm-hero-inner{padding:50px 20px 70px}
  .pm-section{padding:52px 20px}
}
@media (max-width:600px){
  .pm-grid, .pm-grid.two{grid-template-columns:1fr}
  .wrap{padding:20px 16px 60px}
  .narrow{padding:20px 16px 60px}
  .card{padding:20px;border-radius:12px}
  h1{font-size:24px}
  .brandbar{padding:12px 16px;flex-wrap:wrap;gap:8px}
  .stat{min-width:44%;margin-right:4%}
  table{font-size:12px}
  th,td{padding:8px 6px}
  .module-nav{flex-direction:column;gap:10px}
  .module-nav .btn{width:100%;text-align:center}
  .pm-cta-band{padding:40px 22px;border-radius:16px}
}