/* دور ۷ (C4) — آکادمی با پس‌زمینه‌ی Aethera: سفید سینمایی، ویدیو از ۳۰۰px با محو rAF،
   Instrument Serif مشکی و کلمات تأکیدی طوسی #6F6F6F، دکمه‌ی قرصی مشکی */
body[data-page="academy"]{--pg-accent:0,0,0;--pg-accent2:111,111,111;--pg-text:#000;--pg-sub:#6F6F6F;--pg-card:rgba(255,255,255,.78);--pg-line:rgba(0,0,0,.08);background:#fff;}
.ac-page{max-width:1280px;}
.ac-hero{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:calc(8rem - 75px) 16px 140px;min-height:min(86vh,820px);}
.ac-headline{margin:0;max-width:1100px;font:400 clamp(3rem,8vw,6rem)/.95 'Instrument Serif',serif;letter-spacing:-2.46px;color:#000;}
.ac-headline em{color:#6F6F6F;font-style:normal;}  /* دور ۱۱ (A1): شعار انگلیسی بدون ایتالیک، مثل بقیه‌ی متن‌ها */
.ac-desc{max-width:640px;margin:2rem auto 0;color:#6F6F6F;font-size:clamp(1rem,1.5vw,1.12rem);line-height:2;}
.ac-cta{margin-top:3rem;display:inline-block;padding:1.25rem 3.5rem;border-radius:999px;background:#000;color:#fff;text-decoration:none;font-size:1rem;transition:transform .25s;}
.ac-cta:hover{transform:scale(1.03);}
@media (prefers-reduced-motion:no-preference){
  .ac-headline{animation:fade-rise .8s ease-out both;}
  .ac-desc{animation:fade-rise .8s ease-out .2s both;}
  .ac-cta{animation:fade-rise .8s ease-out .4s both;}
}
@keyframes fade-rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}
.ac-sec{position:relative;margin-bottom:40px;}
body[data-page="academy"] .r7-sec h2{color:#000;}
body[data-page="academy"] .r7-h-ico{background:#000;color:#fff;border-color:#000;box-shadow:none;}
.ac-search{max-width:320px;}
/* باکس‌های دسته */
.ac-cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;}
.ac-cat{--tc:0,0,0;position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding:22px;border-radius:24px;cursor:pointer;text-align:start;font:inherit;color:#000;
  background:rgba(255,255,255,.82);border:1px solid rgba(0,0,0,.08);box-shadow:0 1px 2px rgba(0,0,0,.04);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  transition:transform .35s cubic-bezier(.22,.9,.32,1),box-shadow .35s,border-color .35s;overflow:hidden;}
.ac-cat::after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;left:-40px;bottom:-60px;background:radial-gradient(closest-side,rgba(var(--tc),.18),transparent);transition:transform .5s;}
.ac-cat:hover,.ac-cat.on{transform:translateY(-6px);box-shadow:0 22px 44px rgba(0,0,0,.1);border-color:rgba(var(--tc),.5);}
.ac-cat:hover::after{transform:scale(1.4);}
.ac-cat .ci{width:54px;height:54px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff;background:rgb(var(--tc));box-shadow:0 10px 24px rgba(var(--tc),.3);}
.ac-cat h3{margin:4px 0 0;font-size:1.15rem;font-weight:900;}
.ac-cat .en{font:600 .62rem 'Inter',sans-serif;letter-spacing:.16em;color:rgb(var(--tc));direction:ltr;}
.ac-cat p{margin:0;color:#6F6F6F;font-size:.85rem;line-height:1.8;}
.ac-cat .cnt{font-size:.78rem;color:#6F6F6F;margin-top:auto;}
.ac-cat .go{position:absolute;top:22px;left:22px;opacity:.35;transition:transform .3s,opacity .3s;}
.ac-cat:hover .go{opacity:1;transform:translateX(-4px);}
/* جزئیات دسته */
.ac-detail{margin-top:18px;padding:22px;border-radius:26px;background:#fafafa;border:1px solid rgba(0,0,0,.06);animation:fade-rise .5s ease-out;}
.ac-detail-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px;}
.ac-detail-head h3{margin:0;font:400 2rem 'Instrument Serif','Vazirmatn',serif;}
.ac-subs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;}
.ac-subs button{border:1px solid rgba(0,0,0,.12);background:#fff;border-radius:999px;padding:8px 15px;font:600 .84rem 'Vazirmatn',sans-serif;cursor:pointer;color:#000;}
.ac-subs button.on{background:#000;color:#fff;border-color:#000;}
/* کارت دوره */
body[data-page="academy"] .r7-card{background:#fff;border-color:rgba(0,0,0,.07);color:#000;-webkit-backdrop-filter:none;backdrop-filter:none;}
body[data-page="academy"] .r7-card:hover{box-shadow:0 20px 40px rgba(0,0,0,.1);border-color:rgba(0,0,0,.2);}
body[data-page="academy"] .r7-card p,body[data-page="academy"] .r7-card .meta{color:#6F6F6F;}
.course-card .media{aspect-ratio:16/9;}
.course-card .price{font-weight:900;color:#000;}
.course-card .free{color:#0a8a4f;font-weight:900;}
.course-card .lvl{position:absolute;top:10px;left:10px;z-index:2;font-size:.7rem;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.92);color:#000;font-weight:700;}
.course-card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:8px;border-top:1px solid rgba(0,0,0,.06);}
/* کلاس آنلاین */
.ac-live{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;}
.live-card{display:flex;gap:14px;align-items:center;padding:16px;border-radius:20px;background:#0b0b0b;color:#fff;}
.live-card .dot{width:12px;height:12px;border-radius:50%;background:#888;flex-shrink:0;}
.live-card.is-live .dot{background:#ff3b3b;box-shadow:0 0 0 0 rgba(255,59,59,.6);animation:livepulse 1.6s infinite;}
@keyframes livepulse{0%{box-shadow:0 0 0 0 rgba(255,59,59,.6)}70%{box-shadow:0 0 0 12px rgba(255,59,59,0)}100%{box-shadow:0 0 0 0 rgba(255,59,59,0)}}
.live-card h3{margin:0;font-size:.98rem;}
.live-card small{color:#aaa;}
.live-card .r7-btn{margin-inline-start:auto;background:#fff;color:#000;border:0;}
@media (prefers-reduced-motion:reduce){.live-card.is-live .dot{animation:none;}}
.ac-room-box{background:#0b0b0b;width:min(1100px,100%);}
.ac-room{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(280px,1fr);min-height:520px;}
.ac-room .stage{background:#000;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px;text-align:center;}
.ac-room .stage iframe{width:100%;height:100%;min-height:420px;border:0;}
.ac-room .chat{display:flex;flex-direction:column;border-inline-start:1px solid rgba(255,255,255,.08);min-height:0;}
.ac-room .chat-head{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,.08);font-weight:800;}
.ac-room .msgs{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px;max-height:60vh;}
.ac-room .msg{padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.06);font-size:.88rem;line-height:1.8;}
.ac-room .msg b{display:block;font-size:.74rem;color:#9fe0ff;}
.ac-room .msg.admin b{color:#ffd27a;}
.ac-room .msg.me{background:rgba(124,184,245,.16);}
.ac-room form{display:flex;gap:8px;padding:12px;border-top:1px solid rgba(255,255,255,.08);}
.ac-room form input{flex:1;padding:11px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.15);background:rgba(255,255,255,.06);color:#fff;font:inherit;}
@media (max-width:760px){.ac-room{grid-template-columns:1fr;}.ac-room .stage iframe{min-height:220px;}.ac-hero{padding-bottom:70px;min-height:auto;}}
a.ac-cat{text-decoration:none}