/* ============================================================
   SMM SOLVER — Academy (LMS) layer
   Extends site.css
   ============================================================ */

/* ── Course card ──────────────────────────────────────────── */
.course-card{
  display:flex;flex-direction:column;overflow:hidden;padding:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.course-card:hover{transform:translateY(-5px);border-color:var(--y-line);box-shadow:var(--sh-lg)}
.course-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line)}
.course-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.course-card:hover .course-thumb img{transform:scale(1.05)}
.course-thumb .ph{
  width:100%;height:100%;display:grid;place-items:center;font-size:2.8rem;
  background:radial-gradient(ellipse at 30% 20%,rgba(255,200,0,.2),transparent 62%),linear-gradient(150deg,var(--surface-3),var(--surface));
}
.course-thumb .flag{position:absolute;top:12px;left:12px;z-index:2}
.course-body{padding:24px;display:flex;flex-direction:column;flex:1}
.course-body h3{font-size:1.12rem;margin-bottom:8px;line-height:1.32}
.course-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:.78rem;color:var(--txt-3);margin-bottom:16px}
.course-meta span{display:flex;align-items:center;gap:5px}
.course-foot{
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
}
.price{font-family:var(--f-display);font-size:1.45rem;font-weight:700;color:var(--y);line-height:1}
.price small{font-size:.8rem;color:var(--txt-3);text-decoration:line-through;font-weight:400;margin-left:7px}

/* ── Progress ─────────────────────────────────────────────── */
.bar{height:6px;border-radius:99px;background:var(--surface-3);overflow:hidden}
.bar > i{
  display:block;height:100%;border-radius:99px;
  background:linear-gradient(90deg,var(--y-3),var(--y));
  transition:width .7s var(--ease);
}
.bar.thin{height:4px}

.ring{--p:0;width:52px;height:52px;position:relative;flex:none}
.ring svg{transform:rotate(-90deg);width:100%;height:100%}
.ring circle{fill:none;stroke-width:5}
.ring .tr{stroke:var(--surface-3)}
.ring .fg{stroke:var(--y);stroke-linecap:round;transition:stroke-dashoffset .8s var(--ease)}
.ring b{
  position:absolute;inset:0;display:grid;place-items:center;
  font-size:.72rem;font-weight:700;font-family:var(--f-display);
}

/* ── Curriculum accordion ─────────────────────────────────── */
.mod{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);margin-bottom:10px;overflow:hidden;transition:border-color var(--t)}
.mod[open]{border-color:var(--y-line)}
.mod > summary{
  padding:17px 20px;cursor:pointer;list-style:none;display:flex;gap:14px;align-items:center;
}
.mod > summary::-webkit-details-marker{display:none}
.mod-n{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;flex:none;
  background:var(--surface-3);border:1px solid var(--line-2);
  font-family:var(--f-display);font-weight:700;font-size:.82rem;color:var(--y);
}
.mod[open] .mod-n{background:var(--y);color:#0A0A0A;border-color:var(--y)}
.mod-t{flex:1;min-width:0}
.mod-t strong{display:block;font-family:var(--f-display);font-size:.96rem;font-weight:600;line-height:1.35}
.mod-t span{font-size:.76rem;color:var(--txt-3)}
.mod-c{font-size:.76rem;color:var(--txt-3);flex:none;white-space:nowrap}
.mod > summary::after{content:'▾';color:var(--y);font-size:.75rem;flex:none;transition:transform .3s var(--ease)}
.mod[open] > summary::after{transform:rotate(180deg)}
.mod-list{border-top:1px solid var(--line)}
.mod-list a,.mod-list div.li{
  display:flex;gap:12px;align-items:center;padding:12px 20px 12px 22px;
  border-bottom:1px solid var(--line);font-size:.88rem;color:var(--txt-2);
  transition:background .2s,color .2s;
}
.mod-list a:last-child,.mod-list div.li:last-child{border-bottom:0}
.mod-list a:hover{background:var(--surface-2);color:var(--txt)}
.li-ico{
  width:26px;height:26px;border-radius:7px;display:grid;place-items:center;flex:none;
  background:var(--surface-3);border:1px solid var(--line);font-size:.68rem;
}
.li-ico.done{background:rgba(52,211,153,.16);border-color:rgba(52,211,153,.4);color:var(--ok)}
.li-ico.lock{opacity:.5}
.li-t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.li-m{font-size:.74rem;color:var(--txt-3);flex:none}

/* ── Player shell ─────────────────────────────────────────── */
.player{
  display:grid;grid-template-columns:1fr 372px;gap:0;
  min-height:calc(100vh - var(--nav-h));align-items:start;
}
.player-main{padding:34px 38px 70px;min-width:0}
.player-side{
  position:sticky;top:var(--nav-h);height:calc(100vh - var(--nav-h));
  overflow-y:auto;border-left:1px solid var(--line);background:var(--bg-2);
}
.player-side-hd{
  padding:20px 22px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--bg-2);z-index:5;
}
.side-mod{border-bottom:1px solid var(--line)}
.side-mod > summary{
  padding:14px 20px;cursor:pointer;list-style:none;
  display:flex;gap:11px;align-items:center;font-size:.87rem;font-weight:600;
}
.side-mod > summary::-webkit-details-marker{display:none}
.side-mod > summary::after{content:'▾';margin-left:auto;color:var(--txt-3);font-size:.7rem;transition:transform .3s}
.side-mod[open] > summary::after{transform:rotate(180deg)}
.side-mod .sm-n{
  width:26px;height:26px;border-radius:7px;flex:none;display:grid;place-items:center;
  background:var(--surface-3);border:1px solid var(--line-2);font-size:.72rem;font-weight:700;color:var(--y);
}
.side-les{
  display:flex;gap:11px;align-items:center;padding:11px 20px 11px 26px;
  font-size:.83rem;color:var(--txt-2);border-left:2px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.side-les:hover{background:var(--surface);color:var(--txt)}
.side-les.on{background:var(--y-soft);border-left-color:var(--y);color:var(--y-2);font-weight:600}
.side-les .li-t{white-space:normal;line-height:1.35}

.video-box{
  position:relative;aspect-ratio:16/9;width:100%;border-radius:var(--r-lg);
  overflow:hidden;background:#000;border:1px solid var(--line-2);box-shadow:var(--sh-lg);
}
.video-box iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-none{
  aspect-ratio:16/7;display:grid;place-items:center;text-align:center;padding:30px;
  border-radius:var(--r-lg);border:1px dashed var(--line-2);background:var(--surface);
}

/* Lesson prose */
.prose{max-width:74ch;font-size:1rem;line-height:1.8;color:var(--txt-2)}
.prose h2{font-size:1.5rem;margin:34px 0 14px;color:var(--txt)}
.prose h3{font-size:1.2rem;margin:28px 0 12px;color:var(--txt)}
.prose h4{font-size:1.03rem;margin:22px 0 10px;color:var(--txt)}
.prose p{margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 18px 22px}
.prose ul li{list-style:disc;margin-bottom:9px}
.prose ol li{list-style:decimal;margin-bottom:9px}
.prose strong{color:var(--txt);font-weight:600}
.prose a{color:var(--y-2);text-decoration:underline;text-underline-offset:3px}
.prose blockquote{
  border-left:3px solid var(--y);padding:4px 0 4px 20px;margin:22px 0;
  color:var(--txt);font-style:italic;
}
.prose code{background:var(--surface-2);padding:2px 7px;border-radius:6px;font-size:.88em;color:var(--y-2)}
.prose pre{background:var(--surface-2);padding:18px;border-radius:12px;overflow-x:auto;margin-bottom:18px;border:1px solid var(--line)}
.prose img{border-radius:12px;margin:18px 0;border:1px solid var(--line)}
.prose hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.prose table{width:100%;border-collapse:collapse;margin-bottom:18px;font-size:.92rem}
.prose th,.prose td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.prose th{background:var(--surface-2);color:var(--txt);font-weight:600}

/* Attachments */
.dl{
  display:flex;align-items:center;gap:13px;padding:14px 17px;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  margin-bottom:10px;transition:border-color var(--t),transform var(--t);
}
.dl:hover{border-color:var(--y-line);transform:translateX(3px)}
.dl .ic{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;flex:none;background:var(--y-soft);border:1px solid var(--y-line);font-size:1rem}
.dl .nm{flex:1;min-width:0;font-size:.9rem;font-weight:500;color:var(--txt)}
.dl .sz{font-size:.75rem;color:var(--txt-3)}

/* Lesson nav */
.les-nav{display:flex;justify-content:space-between;gap:14px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);flex-wrap:wrap}

/* ── Quiz ─────────────────────────────────────────────────── */
.qz{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:24px;margin-bottom:16px}
.qz-q{font-family:var(--f-display);font-weight:600;font-size:1.02rem;margin-bottom:18px;line-height:1.5}
.qz-q .n{color:var(--y);margin-right:8px}
.qz-o{
  display:flex;gap:13px;align-items:flex-start;padding:14px 17px;margin-bottom:9px;
  border:1.5px solid var(--line-2);border-radius:12px;cursor:pointer;
  transition:border-color .2s,background .2s;font-size:.93rem;
}
.qz-o:hover{border-color:var(--y-line);background:var(--surface-2)}
.qz-o input{accent-color:var(--y);width:18px;height:18px;margin-top:2px;flex:none;cursor:pointer}
.qz-o:has(input:checked){border-color:var(--y);background:var(--y-soft)}
.qz-o.right{border-color:rgba(52,211,153,.55);background:rgba(52,211,153,.08)}
.qz-o.wrong{border-color:rgba(248,113,113,.55);background:rgba(248,113,113,.08)}
.qz-exp{
  margin-top:12px;padding:13px 16px;border-radius:10px;font-size:.87rem;
  background:var(--surface-2);border-left:3px solid var(--y);color:var(--txt-2);
}
.score-ring{width:132px;height:132px;margin:0 auto 20px}

/* ── Certificate ──────────────────────────────────────────── */
.cert{
  position:relative;background:#0B0B0E;border:2px solid var(--y);
  border-radius:var(--r-lg);padding:56px 52px;text-align:center;overflow:hidden;
  box-shadow:0 0 70px -20px rgba(255,200,0,.5);
}
.cert::before{
  content:'';position:absolute;inset:14px;border:1px solid rgba(255,200,0,.28);border-radius:14px;pointer-events:none;
}
.cert-seal{
  width:76px;height:76px;margin:0 auto 22px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--y),var(--y-3));color:#0A0A0A;font-size:2rem;
  box-shadow:0 0 38px -8px rgba(255,200,0,.7);
}
.cert h2{font-size:clamp(1.5rem,3.4vw,2.1rem);margin-bottom:6px}
.cert .who{
  font-family:var(--f-display);font-size:clamp(1.7rem,4.4vw,2.7rem);font-weight:700;
  color:var(--y);margin:22px 0 8px;line-height:1.2;
}
.cert .rule{width:180px;height:1px;background:var(--y-line);margin:18px auto}
.cert-sign{display:flex;justify-content:space-between;gap:26px;margin-top:42px;flex-wrap:wrap;text-align:left}
.cert-sign > div{flex:1;min-width:150px}
.cert-sign .lbl{font-size:.7rem;color:var(--txt-3);text-transform:uppercase;letter-spacing:.1em;margin-bottom:5px}
.cert-sign .vl{font-family:var(--f-display);font-weight:600;font-size:.95rem}

/* ── Auth pages ───────────────────────────────────────────── */
.auth-wrap{
  min-height:calc(100vh - var(--nav-h));display:grid;place-items:center;
  padding:calc(var(--nav-h) + 50px) 20px 70px;
}
.auth-card{width:100%;max-width:452px}
.auth-card .card{padding:36px}
.auth-head{text-align:center;margin-bottom:28px}
.auth-head h1{font-size:1.7rem;margin-bottom:8px}
.auth-alt{text-align:center;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);font-size:.88rem;color:var(--txt-3)}
.auth-alt a{color:var(--y-2);font-weight:600}

/* ── Checkout ─────────────────────────────────────────────── */
.pay-opt{
  display:block;padding:20px;border:1.5px solid var(--line-2);border-radius:var(--r);
  cursor:pointer;margin-bottom:14px;transition:border-color .25s,background .25s;
}
.pay-opt:hover{border-color:var(--y-line)}
.pay-opt:has(input:checked){border-color:var(--y);background:var(--y-soft)}
.pay-opt-hd{display:flex;gap:13px;align-items:center}
.pay-opt input{accent-color:var(--y);width:19px;height:19px;flex:none;cursor:pointer}
.pay-opt .t{font-family:var(--f-display);font-weight:600;font-size:.98rem}
.pay-opt .s{font-size:.79rem;color:var(--txt-3)}
.pay-opt .body{display:none;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.pay-opt:has(input:checked) .body{display:block}

.sum-row{display:flex;justify-content:space-between;padding:9px 0;font-size:.91rem;color:var(--txt-2)}
.sum-row.tot{
  border-top:1px solid var(--line);margin-top:9px;padding-top:15px;
  font-family:var(--f-display);font-size:1.22rem;font-weight:700;color:var(--txt);
}
.sum-row.tot span:last-child{color:var(--y)}

.qr-box{
  background:#fff;padding:14px;border-radius:14px;width:190px;margin:0 auto 16px;
}
.qr-box img{width:100%;display:block;border-radius:6px}

/* ── Dashboard ────────────────────────────────────────────── */
.dash-hd{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  padding:26px 30px;border-radius:var(--r-lg);margin-bottom:30px;
  background:linear-gradient(135deg,var(--y-soft),transparent 70%),var(--surface);
  border:1px solid var(--y-line);
}
.dash-av{
  width:62px;height:62px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--y),var(--y-3));color:#0A0A0A;
  font-family:var(--f-display);font-weight:700;font-size:1.5rem;
}
.kpi{padding:22px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);transition:border-color var(--t)}
.kpi:hover{border-color:var(--y-line)}
.kpi .k{font-size:.75rem;color:var(--txt-3);text-transform:uppercase;letter-spacing:.08em;margin-bottom:9px}
.kpi .v{font-family:var(--f-display);font-size:1.9rem;font-weight:700;line-height:1;color:var(--y)}
.kpi .s{font-size:.77rem;color:var(--txt-3);margin-top:6px}

.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:28px;overflow-x:auto}
.tabs a{
  padding:11px 18px;font-size:.9rem;font-weight:500;color:var(--txt-3);
  border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s,border-color .2s;
}
.tabs a:hover{color:var(--txt-2)}
.tabs a.on{color:var(--y);border-bottom-color:var(--y);font-weight:600}

.empty{text-align:center;padding:60px 24px;color:var(--txt-3)}
.empty .ic{font-size:3rem;margin-bottom:14px;opacity:.5}

/* ── Sticky buy bar (mobile) ──────────────────────────────── */
.buy-bar{
  position:sticky;top:calc(var(--nav-h) + 16px);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width:1080px){
  .player{grid-template-columns:1fr}
  .player-side{
    position:static;height:auto;max-height:none;
    border-left:0;border-top:1px solid var(--line);
  }
  .player-side-hd{position:static}
  .player-main{padding:26px 22px 50px}
}
@media (max-width:640px){
  .cert{padding:36px 22px}
  .auth-card .card{padding:26px}
  .course-body{padding:20px}
  .player-main{padding:20px 16px 44px}
}