/* BUSINESS NOUS — shared app styles */
:root{
  --ink:#141B2E; --cobalt:#3457F0; --amber:#FFC24B; --bone:#F6F5F1; --slate:#6A7180;
  --white:#fff; --ink-80:#3a4258; --line:#e6e4dd; --muted:#c7cdde;
  --head:'Poppins',system-ui,sans-serif; --body:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--bone);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--head);font-weight:700;line-height:1.15;letter-spacing:-.02em}
a{color:var(--cobalt);text-decoration:none} a:hover{text-decoration:underline}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}
.narrow{max-width:560px;margin:0 auto;padding:0 24px}
.btn{display:inline-block;background:var(--cobalt);color:#fff;font-family:var(--head);font-weight:600;
  padding:13px 24px;border-radius:10px;font-size:15px;border:none;cursor:pointer;transition:transform .15s,background .15s;text-align:center}
.btn:hover{background:#2444d8;transform:translateY(-2px);text-decoration:none}
.btn.amber{background:var(--amber);color:var(--ink)} .btn.amber:hover{background:#ffce6d}
.btn.ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink)} .btn.ghost:hover{background:#fff}
.btn.block{display:block;width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.spark{color:var(--amber)}

/* NAV / FOOTER (injected) */
nav.bn{position:sticky;top:0;z-index:50;background:rgba(20,27,46,.95);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
nav.bn .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-family:var(--head);font-weight:800;font-size:19px;color:#fff;letter-spacing:-.02em}
.logo:hover{text-decoration:none} .logo b{color:var(--cobalt)} .logo .dot{color:var(--amber)}
.navlinks{display:flex;gap:24px;align-items:center}
.navlinks a{color:var(--muted);font-weight:500;font-size:15px}
.navlinks a:hover{color:#fff;text-decoration:none}
.navlinks .pill{background:var(--amber);color:var(--ink);padding:8px 16px;border-radius:8px;font-family:var(--head);font-weight:600}
.navlinks .pill:hover{background:#ffce6d}
.navlinks .ghostpill{border:1.5px solid rgba(255,255,255,.25);padding:7px 15px;border-radius:8px;color:#fff}
@media(max-width:680px){.navlinks a.hideM{display:none}}
footer.bn{background:var(--ink);color:#8b93a8;padding:40px 0;margin-top:60px}
footer.bn .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;align-items:center;font-size:13px}

/* PAGE HEAD */
.page-head{background:var(--ink);color:#fff;padding:64px 0 68px;position:relative;overflow:hidden}
.page-head:before{content:"";position:absolute;top:-140px;right:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(52,87,240,.45),transparent 68%);animation:float 9s ease-in-out infinite}
.page-head:after{content:"";position:absolute;bottom:-160px;left:20%;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,194,75,.18),transparent 70%);animation:float 11s ease-in-out infinite reverse}
.page-head .wrap{position:relative;z-index:1}
.page-head .eyebrow{font-family:var(--head);font-weight:600;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--amber);margin-bottom:12px;display:inline-flex;align-items:center;gap:9px}
.page-head .eyebrow:before{content:"";width:26px;height:3px;background:var(--amber);border-radius:2px}
.page-head h1{font-size:clamp(32px,5.4vw,50px);max-width:20ch;letter-spacing:-.03em}
.page-head p{color:var(--muted);font-size:18px;max-width:60ch;margin-top:14px}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(26px)}}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.reveal{animation:rise .5s ease both}

/* SECTION */
.section{padding:48px 0}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.chip{border:1.5px solid var(--line);background:#fff;color:var(--ink);font-family:var(--head);font-weight:600;
  font-size:14px;padding:8px 16px;border-radius:22px;cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--cobalt)} .chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* COURSE GRID */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s;position:relative}
.card:hover{transform:translateY(-6px);box-shadow:0 24px 50px rgba(52,87,240,.16);text-decoration:none;border-color:transparent}
.card .top{padding:22px;color:#fff;height:130px;position:relative;overflow:hidden;background:linear-gradient(135deg,#233056,#141B2E)}
.card .top:after{content:"◆";position:absolute;right:-6px;bottom:-22px;font-size:120px;line-height:1;color:rgba(255,255,255,.05);transition:transform .3s}
.card:hover .top:after{transform:rotate(-12deg) scale(1.08)}
.card .top.amber{background:linear-gradient(135deg,#3a4576,#1b2440)}
.card .top .acc{position:absolute;top:22px;left:22px;width:38px;height:6px;border-radius:3px;background:var(--amber)}
.card .top .tk{position:absolute;bottom:18px;left:22px;font-family:var(--head);font-weight:700;font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:#fff}
.card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:20px;color:var(--ink);margin-bottom:8px;line-height:1.2}
.card p{font-size:14px;color:var(--ink-80);flex:1}
.card .foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.card .price{font-family:var(--head);font-weight:800;color:var(--ink);font-size:20px}
.card .go{font-family:var(--head);font-weight:600;color:var(--cobalt);font-size:14px;transition:transform .2s}
.card:hover .go{transform:translateX(5px)}

/* PANEL / FORMS */
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px}
.field{margin-bottom:16px}
.field label{display:block;font-family:var(--head);font-weight:600;font-size:14px;margin-bottom:6px}
.field input{width:100%;padding:13px 15px;border:1.5px solid var(--line);border-radius:10px;font-family:var(--body);font-size:15px}
.field input:focus{outline:none;border-color:var(--cobalt)}
.msg{padding:12px 15px;border-radius:10px;font-size:14px;margin-bottom:16px}
.msg.err{background:#fff2f2;color:#b42318;border:1px solid #ffd7d3}
.msg.ok{background:#eefbf2;color:#0a7a3d;border:1px solid #c9efd6}
.muted{color:var(--slate);font-size:14px}
.center{text-align:center}

/* banner */
.banner{background:var(--amber);color:var(--ink);text-align:center;font-family:var(--head);font-weight:600;font-size:14px;padding:10px 16px}

/* LEARN / PLAYER */
.learn{display:grid;grid-template-columns:320px 1fr;gap:0;min-height:calc(100vh - 64px)}
@media(max-width:820px){.learn{grid-template-columns:1fr}}
.lsidebar{background:#fff;border-right:1px solid var(--line);padding:24px}
.lsidebar h2{font-size:18px;margin-bottom:4px}
.progwrap{margin:16px 0 20px}
.progbar{height:8px;background:var(--line);border-radius:5px;overflow:hidden}
.progbar span{display:block;height:100%;background:var(--cobalt);width:0;transition:width .4s}
.lessonlist{list-style:none}
.lessonlist li{border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-bottom:8px;cursor:pointer;display:flex;gap:10px;align-items:flex-start;transition:.15s}
.lessonlist li:hover{border-color:var(--cobalt)} .lessonlist li.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.lessonlist li.active .lmeta{color:var(--muted)}
.lessonlist .tick{width:20px;height:20px;border-radius:50%;border:2px solid var(--line);flex:none;margin-top:2px;display:flex;align-items:center;justify-content:center;font-size:12px}
.lessonlist li.done .tick{background:var(--cobalt);border-color:var(--cobalt);color:#fff}
.lessonlist .ltitle{font-family:var(--head);font-weight:600;font-size:14.5px}
.lessonlist .lmeta{font-size:12px;color:var(--slate)}
.lmain{padding:32px 40px}
@media(max-width:820px){.lmain{padding:24px}}
.player{background:var(--ink);border-radius:16px;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;color:var(--muted);overflow:hidden}
.player iframe{width:100%;height:100%;border:0}
.lmain h1{font-size:28px;margin:24px 0 8px}
.actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.cert{background:linear-gradient(135deg,var(--cobalt),#2338c0);color:#fff;border-radius:16px;padding:30px;text-align:center;margin-top:24px}
.cert h3{color:#fff;font-size:24px;margin-bottom:8px}