/* ============================================================
   بدن‌نامه — پالت رسمی درود «آبی اعتماد» (تم روشن یکپارچه)
   primary #1D4ED8 · amber #F59E0B · bg #F4F7FC · ink #0B1B3A
   فونت: Vazirmatn (متن) + Lalezar (تیتر)
============================================================ */
:root{
  --bg:#F4F7FC;
  --bg-2:#EAF0FA;
  --panel:#ffffff;
  --panel-2:#F6F8FC;
  --glass:rgba(255,255,255,.9);
  --line:#E3E9F2;
  --line-2:#CBD6E6;
  --tx:#0B1B3A;
  --tx-2:#51618A;
  --tx-3:#8492AC;
  --acc:#1D4ED8;
  --acc-2:#173DB0;
  --acc-tint:#E8EEFF;
  --amber:#F59E0B;
  --amber-dark:#B45309;
  --amber-tint:#FEF3E2;
  --on-amber:#101828;
  --coral:#D92D20;
  --ok:#12805C;
  --danger:#D92D20;
  --radius:20px;
  --radius-sm:13px;
  --shadow-lg:0 24px 60px -24px rgba(11,27,58,.22);
  --shadow:0 14px 40px -16px rgba(11,27,58,.16);
  --shadow-sm:0 6px 20px -10px rgba(11,27,58,.14);
  --topbar-h:66px;
  --grain:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
  --font-display:'Lalezar','Vazirmatn',sans-serif;
}

/* ============ پایه ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Vazirmatn","Segoe UI",Tahoma,sans-serif;
  background:var(--bg);
  color:var(--tx);
  line-height:2;
  font-size:15.5px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:-20%;z-index:-2;pointer-events:none;
  background:
    radial-gradient(40% 32% at 85% 0%, rgba(29,78,216,.06), transparent 65%),
    radial-gradient(36% 28% at 5% 18%, rgba(245,158,11,.05), transparent 60%),
    radial-gradient(46% 38% at 50% 110%, rgba(29,78,216,.05), transparent 62%);
  animation:aurora 26s ease-in-out infinite alternate;
}
@keyframes aurora{
  0%{transform:translate3d(0,0,0)}50%{transform:translate3d(1.4%,-1%,0)}100%{transform:translate3d(-1.2%,1%,0)}
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:var(--grain);opacity:.35;mix-blend-mode:multiply;
}
a{color:var(--acc);text-decoration:none}
a:hover{filter:brightness(1.12)}
img,svg{max-width:100%;display:block}
button{font-family:inherit}
::selection{background:rgba(29,78,216,.18)}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:8px}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(81,97,138,.3);border-radius:99px;border:3px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:rgba(81,97,138,.5);background-clip:content-box}

.container{max-width:1220px;margin:0 auto;padding:0 24px}
.page{padding:26px 0 90px;min-height:calc(100vh - var(--topbar-h))}
.en{direction:ltr;unicode-bidi:isolate;font-family:"Space Grotesk","Vazirmatn",sans-serif;font-weight:500;letter-spacing:.02em}
.muted{color:var(--tx-2)}
.small{font-size:13px}
h1,h2,h3,h4{line-height:1.55;margin:0}
h1,h2,.section-head h2,.stat b,.score-big{font-family:var(--font-display);font-weight:400;letter-spacing:.01em}

/* ============ تاپ‌بار ============ */
.topbar{
  position:sticky;top:0;z-index:80;height:var(--topbar-h);
  backdrop-filter:blur(16px) saturate(1.2);
  -webkit-backdrop-filter:blur(16px) saturate(1.2);
  background:rgba(255,255,255,.88);
  border-bottom:1px solid var(--line);
}
.topbar::after{
  content:"";position:absolute;inset-inline:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg, transparent 8%, var(--amber) 30%, var(--acc) 60%, transparent 92%);
  opacity:.75;
}
.topbar-inner{max-width:1220px;margin:0 auto;height:100%;padding:0 24px;display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:11px;color:var(--tx);font-family:var(--font-display);font-weight:400;font-size:23px}
.brand:hover{filter:none}
.brand-mark{width:36px;height:36px;display:grid;place-items:center}
.brand-mark svg{width:31px;height:31px;filter:drop-shadow(0 2px 6px rgba(29,78,216,.35))}
.brand small{color:var(--tx-3);font-family:"Vazirmatn";font-weight:500;font-size:11px;margin-inline-start:2px}
.nav{display:flex;gap:5px;margin-inline-start:14px}
.nav a{
  color:var(--tx-2);padding:7px 15px;border-radius:14px;font-size:14px;font-weight:600;
  border:1px solid transparent;transition:.18s;
}
.nav a:hover{color:var(--nav-accent,#0948B3);background:#E9EFF8;filter:none}
.nav a.active{
  color:#0948B3;background:#E9EFF8;font-weight:800;
  box-shadow:inset -4px 0 0 0 #0948B3;
}
.top-actions{margin-inline-start:auto;display:flex;align-items:center;gap:9px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;cursor:pointer;
  background:#fff;border:1px solid var(--line);color:var(--tx-2);
  transition:.18s;
}
.icon-btn:hover{color:var(--acc);border-color:var(--acc);transform:translateY(-1px)}
.icon-btn svg{width:19px;height:19px}
.search-pill{
  display:flex;align-items:center;gap:9px;cursor:pointer;
  border:1px solid var(--line);border-radius:12px;padding:8px 15px;color:var(--tx-3);
  background:#fff;font-size:13.5px;transition:.18s;
}
.search-pill:hover{border-color:var(--acc);color:var(--tx-2);box-shadow:0 0 0 3px rgba(29,78,216,.08)}
.search-pill kbd{
  font-family:"Space Grotesk",monospace;font-size:10.5px;color:var(--tx-3);
  border:1px solid var(--line);border-radius:6px;padding:1px 6px;background:var(--panel-2);
}
.menu-btn{display:none}

/* ============ هیرو ============ */
.hero{padding:56px 0 28px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:800;color:var(--acc);
  letter-spacing:.02em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:2px;background:var(--amber)}
.eyebrow .dot-live{width:7px;height:7px;border-radius:99px;background:var(--amber);animation:pulse-dot 1.8s infinite}
@keyframes pulse-dot{0%,100%{box-shadow:0 0 0 0 rgba(245,158,11,.5)}55%{box-shadow:0 0 0 7px rgba(245,158,11,0)}}
.hero h1{
  font-size:clamp(42px,6vw,70px);font-weight:400;line-height:1.35;
  background:linear-gradient(120deg,#12275C 20%,#1D4ED8 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  padding-bottom:4px;
}
.hero .lede{color:var(--tx-2);font-size:17px;max-width:54ch;margin:18px 0 30px}
.hero .lede b{color:var(--tx);font-weight:800}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;border:none;border-radius:14px;padding:13px 26px;
  font-size:15px;font-weight:800;transition:.2s;
  background:var(--amber);color:var(--on-amber);
  box-shadow:0 10px 26px -10px rgba(245,158,11,.65), inset 0 -2px 0 rgba(0,0,0,.08);
}
.btn:hover{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 16px 34px -10px rgba(245,158,11,.7)}
.btn.ghost{background:#fff;color:var(--acc);border:1.5px solid var(--line-2);box-shadow:none}
.btn.ghost:hover{border-color:var(--acc);box-shadow:0 0 0 3px rgba(29,78,216,.08)}
.btn svg{width:18px;height:18px}
.dedication{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  font-size:13px;color:var(--tx-2);
  background:var(--amber-tint);border:1px solid #F4DCA8;border-radius:99px;padding:6px 16px;
}
.dedication b{color:var(--amber-dark)}

/* استریپ آمار */
.stats{
  display:flex;gap:0;border-radius:var(--radius);overflow:hidden;margin-top:40px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.stat{flex:1;padding:20px 12px;text-align:center;border-inline-start:1px solid var(--line);position:relative}
.stat:first-child{border-inline-start:none}
.stat b{display:block;font-size:30px;color:var(--acc)}
.stat span{font-size:12.5px;color:var(--tx-2)}

/* ============ کارت‌ها ============ */
.grid{display:grid;gap:18px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border-radius:var(--radius);padding:22px;position:relative;
  border:1px solid var(--line);transition:.22s;
  box-shadow:0 1px 2px rgba(11,27,58,.05), 0 10px 28px -18px rgba(11,27,58,.14);
}
.card.hoverable{cursor:pointer;display:block;color:var(--tx)}
.card.hoverable:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-2)}
.card .sys-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;
  background:var(--acc-tint);color:var(--acc);border:1px solid #D6E2FA;
}
.card .sys-icon svg{width:25px;height:25px}
.card h3{font-size:17px;font-weight:800}
.card .en{font-size:11.5px;color:var(--tx-3)}
.card p{margin:9px 0 0;font-size:13.6px;color:var(--tx-2)}
.card .count{
  position:absolute;top:18px;inset-inline-end:18px;font-size:11px;color:var(--tx-2);
  border:1px solid var(--line);border-radius:99px;padding:2px 10px;background:var(--panel-2);
}
.card-img{border-radius:14px;overflow:hidden;margin:0 0 14px;background:var(--panel-2);border:1px solid var(--line)}
.card-img img{width:100%;height:150px;object-fit:cover;transition:.4s}
.card.hoverable:hover .card-img img{transform:scale(1.045)}
.card.amber-top{border-top:3px solid var(--amber)}

.section-head{display:flex;align-items:baseline;gap:14px;margin:52px 0 20px;flex-wrap:wrap}
.section-head h2{font-size:27px}
.section-head .muted{font-size:13.5px}

.feat{display:flex;gap:15px;align-items:flex-start}
.feat .f-ic{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--acc-tint);color:var(--acc);border:1px solid #D6E2FA;
}
.feat .f-ic svg{width:23px;height:23px}
.feat .f-ic.amber{background:var(--amber-tint);color:var(--amber-dark);border-color:#F4DCA8}
.feat h4{font-size:15.5px;font-weight:800}
.feat p{margin:5px 0 0;font-size:13.2px;color:var(--tx-2)}

/* ============ چیپ‌ها ============ */
.chips{display:flex;flex-wrap:wrap;gap:9px;margin:16px 0}
.chip{
  border:1px solid var(--line);background:#fff;color:var(--tx-2);
  border-radius:12px;padding:7px 15px;font-size:13.5px;cursor:pointer;transition:.18s;
  display:inline-flex;align-items:center;gap:8px;font-weight:600;
}
.chip:hover{border-color:var(--acc);color:var(--acc);transform:translateY(-1px)}
.chip.active{
  color:#0948B3;background:#E9EFF8;border-color:transparent;font-weight:800;
  box-shadow:inset -4px 0 0 0 #0948B3;
}
.chip .dot{width:8px;height:8px;border-radius:99px;background:var(--dot,var(--acc))}

/* ============ صحنه سه‌بعدی ============ */
.stage3d{
  position:relative;border-radius:var(--radius);overflow:hidden;isolation:isolate;
  background:radial-gradient(120% 100% at 50% 0%, #ffffff 0%, #EAF0FA 70%, #E2EAF6 100%);
  border:1px solid var(--line-2);
  box-shadow:var(--shadow);
  min-height:520px;
}
.stage3d .gl3d-canvas{position:absolute;inset:0}
.stage3d .gl3d-canvas canvas{display:block;width:100% !important;height:100% !important;touch-action:none;cursor:grab}
.stage3d .gl3d-canvas canvas:active{cursor:grabbing}
.stage3d .corner{position:absolute;width:26px;height:26px;border:2px solid rgba(29,78,216,.45);z-index:4;pointer-events:none}
.stage3d .corner.tl{top:14px;inset-inline-start:14px;border-right:none;border-bottom:none;border-start-start-radius:8px}
.stage3d .corner.tr{top:14px;inset-inline-end:14px;border-left:none;border-bottom:none;border-start-end-radius:8px}
.stage3d .corner.bl{bottom:14px;inset-inline-start:14px;border-right:none;border-top:none;border-end-start-radius:8px}
.stage3d .corner.br{bottom:14px;inset-inline-end:14px;border-left:none;border-top:none;border-end-end-radius:8px}
.stage3d .hud{position:absolute;z-index:5;display:flex;gap:7px;flex-wrap:wrap}
.stage3d .hud.bottom{bottom:14px;inset-inline:14px;justify-content:center;pointer-events:none}
.stage3d .hud.bottom > *{pointer-events:auto}
.stage3d .hud.top{top:12px;inset-inline:14px;justify-content:space-between;align-items:flex-start;pointer-events:none}
.stage3d .hud.top > *{pointer-events:auto}
.hud-pill{
  display:inline-flex;align-items:center;gap:8px;border-radius:12px;padding:7px 14px;cursor:pointer;
  background:rgba(255,255,255,.92);border:1px solid var(--line-2);color:var(--tx-2);font-size:12.5px;font-weight:700;
  backdrop-filter:blur(8px);transition:.18s;box-shadow:0 2px 8px -4px rgba(11,27,58,.2);
}
.hud-pill:hover{color:var(--acc);border-color:var(--acc);transform:translateY(-1px)}
.hud-pill.on{color:#fff;background:var(--acc);border-color:var(--acc-2)}
.hud-pill:disabled{opacity:.45;cursor:default;transform:none}
.hud-note{font-size:11.5px;color:var(--tx-2);background:rgba(255,255,255,.9);border-radius:10px;padding:5px 13px;border:1px solid var(--line);backdrop-filter:blur(8px)}
.gl3d-loader{
  position:absolute;inset:0;z-index:8;display:flex;flex-direction:column;gap:14px;align-items:center;justify-content:center;
  background:rgba(244,247,252,.9);backdrop-filter:blur(6px);transition:opacity .5s;color:var(--tx-2);font-size:14px;font-weight:600;
}
.gl3d-loader.hide{opacity:0;pointer-events:none}
.gl3d-loader .beat{width:52px;height:52px;animation:beat 1.1s infinite ease-in-out}
@keyframes beat{0%,100%{transform:scale(1)}18%{transform:scale(1.22)}36%{transform:scale(1)}54%{transform:scale(1.14)}}
.gl3d-loader .bar{width:min(280px,70%);height:6px;border-radius:99px;background:rgba(11,27,58,.08);overflow:hidden}
.gl3d-loader .bar i{display:block;height:100%;width:0%;border-radius:99px;background:linear-gradient(90deg,var(--acc),var(--amber));transition:width .3s}
.gl3d-loader .err{color:var(--danger);font-size:13px;max-width:46ch;text-align:center}
.part-hover{
  position:fixed;z-index:60;pointer-events:none;display:none;
  background:#0B1B3A;border:1px solid #1D4ED8;color:#fff;
  padding:5px 12px;border-radius:9px;font-size:12px;font-weight:600;
  box-shadow:0 10px 26px -10px rgba(11,27,58,.5);
}
.part-hover.show{display:block}
.stage3d.tall{min-height:640px}

/* ============ مودال ============ */
.modal-backdrop{
  position:fixed;inset:0;z-index:100;background:rgba(11,27,58,.45);
  backdrop-filter:blur(8px);
  display:flex;align-items:center;justify-content:center;padding:22px;
  animation:fadeIn .22s ease;
}
.modal{
  background:#fff;border:1px solid var(--line-2);border-radius:22px;
  width:min(980px,100%);max-height:92vh;overflow-y:auto;position:relative;
  box-shadow:var(--shadow-lg);animation:slideUp .3s cubic-bezier(.2,.9,.3,1.08);
}
.modal::before{
  content:"";position:absolute;top:0;inset-inline:0;height:110px;pointer-events:none;
  background:linear-gradient(180deg, color-mix(in srgb, var(--mc, #1D4ED8) 10%, transparent), transparent);
}
.modal-close{
  position:sticky;top:14px;margin:14px 14px 0 auto;display:flex;z-index:5;float:left;
  width:38px;height:38px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line-2);color:var(--tx-2);
  transition:.2s;
}
.modal-close:hover{color:var(--danger);border-color:var(--danger);transform:rotate(90deg)}
.modal-head{padding:8px 30px 0;clear:both;position:relative}
.modal-head .tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;color:var(--mc,#1D4ED8);
  border:1px solid color-mix(in srgb, var(--mc,#1D4ED8) 35%, transparent);
  background:color-mix(in srgb, var(--mc,#1D4ED8) 8%, #fff);
  border-radius:99px;padding:3px 12px;
}
.modal-head h2{font-size:26px;font-weight:800;margin-top:10px;font-family:var(--font-display);font-weight:400}
.modal-head .en{color:var(--tx-3);font-size:13px}
.modal-body{padding:14px 30px 32px;position:relative}
.modal-body p.desc{color:var(--tx-2);font-size:14.8px}
.modal-img{border-radius:16px;overflow:hidden;border:1px solid var(--line);margin:16px 0 4px;background:#fff;box-shadow:var(--shadow-sm)}
.modal-img img{width:100%;max-height:380px;object-fit:contain;background:#fff}
.modal-img .credit{font-size:10.5px;color:var(--tx-3);padding:6px 12px;border-top:1px solid var(--line)}
.modal h4.sub{font-size:15.5px;font-weight:800;margin:28px 0 12px;display:flex;align-items:center;gap:10px}
.modal h4.sub::before{content:"";width:7px;height:22px;border-radius:4px;background:var(--amber)}
.facts{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.fact{
  border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 15px;
  background:var(--panel-2);font-size:13.2px;color:var(--tx-2);
}
.fact b{color:var(--tx);font-weight:700}
.clinical{
  border:1px solid #F4DCA8;background:var(--amber-tint);
  border-radius:var(--radius-sm);padding:13px 16px;font-size:13.4px;color:var(--tx-2);
}
.clinical b{color:var(--amber-dark)}
.modal .btn.go-brain{margin-top:16px}

/* ============ آکاردئون ============ */
.acc{border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;background:#fff}
.acc-item + .acc-item{border-top:1px solid var(--line)}
.acc-head{
  width:100%;text-align:start;background:transparent;border:none;color:var(--tx);
  padding:14px 17px;font-size:14.4px;font-weight:700;cursor:pointer;display:flex;align-items:center;gap:10px;transition:.18s;
}
.acc-head:hover{background:var(--acc-tint)}
.acc-head .arrow{margin-inline-start:auto;transition:.28s;color:var(--tx-3);font-size:12px}
.acc-item.open .acc-head .arrow{transform:rotate(180deg);color:var(--acc)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .32s ease}
.acc-body-inner{padding:10px 17px 16px;font-size:13.8px;color:var(--tx-2);border-top:1px dashed var(--line)}
.acc-item.open .acc-body{max-height:460px;overflow-y:auto}
.acc-item.hl .acc-head{color:var(--acc)}

/* ============ کاوشگر مغز / چیدمان ستونی ============ */
.brain-layout{display:grid;grid-template-columns:1fr 350px;gap:20px;align-items:start}
.brain-side{display:flex;flex-direction:column;gap:16px;position:sticky;top:calc(var(--topbar-h) + 16px);max-height:calc(100vh - var(--topbar-h) - 40px);overflow-y:auto;padding-inline-end:5px}
.bgroup h4{font-size:12.5px;color:var(--tx-3);font-weight:800;margin:0 0 9px;padding-inline-start:5px}
.bgroup .bparts{display:flex;flex-wrap:wrap;gap:7px}
.bpart{
  font-size:12.8px;border:1px solid var(--line);border-radius:12px;padding:5px 13px;cursor:pointer;
  color:var(--tx-2);background:#fff;transition:.18s;display:inline-flex;align-items:center;gap:7px;font-weight:600;
}
.bpart:hover{color:var(--acc);border-color:var(--acc);transform:translateY(-1px)}
.bpart.sel{color:#0948B3;background:#E9EFF8;border-color:transparent;font-weight:800;box-shadow:inset -4px 0 0 0 #0948B3}
.bpart .dot{width:8px;height:8px;border-radius:99px}
.brain-detail{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;min-height:130px;box-shadow:var(--shadow-sm);
}
.brain-detail h3{font-size:19px;font-weight:800}
.brain-detail .en{color:var(--tx-3);font-size:12.5px}
.brain-detail .where{font-size:12.5px;color:var(--tx-2);margin:8px 0 2px}
.brain-detail p{font-size:13.9px;color:var(--tx-2);margin:12px 0 0}
.brain-detail ul{margin:12px 0 0;padding-inline-start:18px;font-size:13.4px;color:var(--tx-2)}
.brain-detail ul li{margin-bottom:6px}
.brain-hint{
  display:flex;gap:10px;align-items:center;border:1px solid #D6E2FA;border-radius:var(--radius-sm);
  padding:11px 15px;font-size:12.8px;color:var(--tx-2);margin-bottom:16px;
  background:var(--acc-tint);
}
.view-tabs{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:16px;align-items:center}
.isolate-toggle{margin-inline-start:auto}
.switch{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:var(--tx-2);cursor:pointer;user-select:none;font-weight:600}
.switch input{display:none}
.switch .track{width:40px;height:23px;border-radius:99px;background:rgba(11,27,58,.1);border:1px solid var(--line-2);position:relative;transition:.22s}
.switch .track::after{content:"";position:absolute;top:2px;inset-inline-start:3px;width:16px;height:16px;border-radius:99px;background:var(--tx-3);transition:.22s}
.switch input:checked + .track{background:var(--acc);border-color:transparent}
.switch input:checked + .track::after{background:#fff;inset-inline-start:19px}

/* ============ آزمون ============ */
.quiz-wrap{max-width:780px;margin:0 auto}
.quiz-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  box-shadow:var(--shadow-sm);
}
.q-progress{height:8px;border-radius:99px;background:var(--bg-2);overflow:hidden;margin-bottom:24px}
.q-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--acc),var(--amber));transition:width .4s ease;border-radius:99px}
.q-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--tx-3);margin-bottom:10px}
.q-text{font-size:19px;font-weight:800;margin:8px 0 22px;line-height:1.95;font-family:var(--font-display);font-weight:400;font-size:21px}
.q-opts{display:grid;gap:11px}
.q-opt{
  text-align:start;background:var(--panel-2);border:1px solid var(--line);border-radius:14px;
  padding:13px 17px;font-size:14.6px;color:var(--tx);cursor:pointer;transition:.18s;display:flex;gap:13px;align-items:center;font-weight:600;
}
.q-opt .k{
  flex:0 0 28px;width:28px;height:28px;border-radius:9px;border:1px solid var(--line-2);
  display:inline-flex;align-items:center;justify-content:center;font-size:12.5px;color:var(--tx-3);font-weight:700;
}
.q-opt:hover:not(:disabled){border-color:var(--acc);transform:translateX(-3px);background:var(--acc-tint)}
.q-opt.correct{border-color:var(--ok);background:#E7F6EF}
.q-opt.correct .k{border-color:var(--ok);color:var(--ok);background:#fff}
.q-opt.wrong{border-color:var(--danger);background:#FEECEB}
.q-opt.wrong .k{border-color:var(--danger);color:var(--danger)}
.q-opt:disabled{cursor:default}
.q-explain{margin-top:18px;border-radius:14px;padding:14px 17px;font-size:13.6px;border:1px solid var(--line);background:var(--panel-2);color:var(--tx-2);animation:fadeIn .3s}
.q-explain b{color:var(--acc)}
.q-footer{display:flex;justify-content:space-between;align-items:center;margin-top:22px}
.score-big{font-size:56px;text-align:center;color:var(--acc)}
.review-item{border:1px solid var(--line);border-radius:14px;padding:14px 17px;margin-top:11px;font-size:13.6px;background:var(--panel-2)}
.review-item.ok{border-inline-start:3px solid var(--ok)}
.review-item.bad{border-inline-start:3px solid var(--danger)}
.review-item b{display:block;margin-bottom:4px;font-size:14px}

/* ============ جستجو ============ */
.search-backdrop{position:fixed;inset:0;z-index:120;background:rgba(11,27,58,.4);backdrop-filter:blur(8px);display:flex;justify-content:center;padding:96px 20px 40px;animation:fadeIn .18s}
.search-box{width:min(640px,100%);background:#fff;border:1px solid var(--line-2);border-radius:18px;box-shadow:var(--shadow-lg);overflow:hidden;height:max-content;animation:slideUp .25s ease}
.search-input-row{display:flex;align-items:center;gap:11px;padding:15px 19px;border-bottom:1px solid var(--line)}
.search-input-row svg{width:19px;height:19px;color:var(--acc);flex:0 0 auto}
.search-input-row input{flex:1;background:transparent;border:none;outline:none;color:var(--tx);font-family:inherit;font-size:16.5px}
.search-results{max-height:430px;overflow-y:auto;padding:9px}
.sr-item{display:flex;gap:13px;align-items:center;padding:12px 15px;border-radius:13px;cursor:pointer;transition:.15s}
.sr-item:hover,.sr-item.hot{background:var(--acc-tint)}
.sr-item .sr-ic{font-size:19px;flex:0 0 auto}
.sr-item b{display:block;font-size:14.4px}
.sr-item span{font-size:12px;color:var(--tx-3)}
.sr-empty{padding:34px;text-align:center;color:var(--tx-3);font-size:14px}
.sr-hint{padding:11px 19px;border-top:1px solid var(--line);font-size:11.5px;color:var(--tx-3);display:flex;gap:16px}

/* ============ ردیف اعضا ============ */
.organ-list{display:grid;gap:11px;grid-template-columns:repeat(auto-fill,minmax(255px,1fr))}
.organ-row{
  display:flex;align-items:center;gap:13px;padding:14px 17px;cursor:pointer;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:.2s;color:var(--tx);
}
.organ-row:hover{border-color:var(--acc);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.organ-row .o-dot{flex:0 0 11px;width:11px;height:11px;border-radius:99px;background:var(--oc,var(--acc))}
.organ-row b{font-size:14.6px;font-weight:700;display:block;line-height:1.55}
.organ-row span{font-size:11.5px;color:var(--tx-3);direction:ltr;unicode-bidi:isolate;font-family:"Space Grotesk",sans-serif}
.organ-row img{width:52px;height:52px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}

/* ============ لیجند ============ */
.legend{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.legend .lg{
  font-size:12px;color:var(--tx-2);border:1px solid var(--line);border-radius:12px;
  padding:3px 12px;display:inline-flex;align-items:center;gap:7px;cursor:pointer;transition:.18s;background:#fff;
}
.legend .lg:hover{color:var(--acc);border-color:var(--acc);transform:translateY(-1px)}
.legend .lg.sel{color:var(--acc);border-color:var(--acc);background:var(--acc-tint)}
.legend .lg .dot{width:9px;height:9px;border-radius:99px}

/* ============ SVG دو بعدی ============ */
.stage{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;isolation:isolate}
.stage::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:34px 34px;opacity:.5;
  mask-image:radial-gradient(80% 80% at 50% 45%, #000 30%, transparent 100%);
  -webkit-mask-image:radial-gradient(80% 80% at 50% 45%, #000 30%, transparent 100%);
}
.stage > .stage-viewport{position:relative;z-index:1;height:100%;touch-action:none;cursor:grab}
.stage > .stage-viewport.dragging{cursor:grabbing}
.stage .stage-viewport svg{width:100%;height:100%;user-select:none}
.stage .zoom-bar{position:absolute;z-index:5;bottom:12px;inset-inline-start:12px;display:flex;gap:6px}
.stage .zoom-bar button{
  width:34px;height:34px;border-radius:10px;cursor:pointer;font-size:17px;line-height:1;
  background:#fff;border:1px solid var(--line-2);color:var(--tx);transition:.18s;
}
.stage .zoom-bar button:hover{border-color:var(--acc);color:var(--acc)}
.stage .stage-note{position:absolute;z-index:4;top:12px;inset-inline-start:14px;font-size:12px;color:var(--tx-3);pointer-events:none}
.stage.tall{height:560px}
.stage.medium{height:480px}
svg .hot{cursor:pointer;transition:filter .18s, opacity .35s, transform .3s;transform-box:fill-box;transform-origin:center}
svg .hot:hover{filter:brightness(1.12) saturate(1.1)}
svg .hot.dim{opacity:.13}
svg .hot.sel{filter:brightness(1.2) saturate(1.25)}
svg .hot.selected-outline{filter:drop-shadow(0 0 5px rgba(29,78,216,.8)) brightness(1.15)}
svg .lbl{font-family:"Vazirmatn",Tahoma,sans-serif;font-size:12.5px;fill:var(--tx-2);direction:rtl;unicode-bidi:isolate}
svg .lbl-t{font-weight:700;fill:var(--tx)}
svg .leader{stroke:var(--tx-3);stroke-width:1;fill:none;stroke-dasharray:3 3;opacity:.7}
svg .pulse-line{stroke-dasharray:600;stroke-dashoffset:600;animation:draw 3.2s ease forwards infinite}
@keyframes draw{55%{stroke-dashoffset:0}100%{stroke-dashoffset:-600}}

/* ============ فوتر ============ */
footer{border-top:1px solid var(--line);padding:38px 0 46px;color:var(--tx-3);font-size:12.8px;position:relative;background:#fff}
footer .container{display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;align-items:center}
.dedication-band{
  background:linear-gradient(120deg,#12275C,#1D4ED8);color:#fff;border-radius:var(--radius);
  padding:26px 30px;display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.dedication-band h3{font-family:var(--font-display);font-weight:400;font-size:22px;color:#fff}
.dedication-band p{margin:4px 0 0;color:#C7D6F8;font-size:13.5px}
.dedication-band .heart{font-size:30px}
.disclaimer{border:1px solid #F4DCA8;border-radius:14px;padding:11px 17px;font-size:12.5px;color:var(--tx-2);background:var(--amber-tint);max-width:1220px;margin:0 auto 24px;display:flex;gap:10px;align-items:center}

/* ============ انیمیشن ورود ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.reveal:nth-child(2){transition-delay:.06s}
.reveal:nth-child(3){transition-delay:.12s}
.reveal:nth-child(4){transition-delay:.18s}
@keyframes fadeIn{from{opacity:0}}
@keyframes slideUp{from{opacity:0;transform:translateY(24px)}}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001s !important;transition-duration:.001s !important}
  .reveal{opacity:1;transform:none}
}

/* ============ ریسپانسیو ============ */
@media (max-width: 1040px){
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .brain-layout{grid-template-columns:1fr}
  .brain-side{position:static;max-height:none}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual-wrap{order:-1}
}
@media (max-width: 720px){
  .nav{display:none;position:absolute;top:var(--topbar-h);inset-inline:0;flex-direction:column;background:var(--glass);backdrop-filter:blur(16px);padding:12px 16px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .menu-btn{display:inline-flex}
  .search-pill kbd,.search-pill span{display:none}
  .grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  .stats{flex-wrap:wrap}
  .stat{flex:1 1 45%;border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:none}
  .stat:nth-child(odd){border-inline-start:none}
  .stage3d{min-height:460px}
  .stage.tall{height:440px}
  .modal-head{padding:4px 20px 0}
  .modal-body{padding:12px 20px 28px}
  .hero{padding:34px 0 24px}
  .hero h1{font-size:clamp(34px,9vw,46px)}
}

/* ============ چیدمان ریسپانسیو کاوشگر ============ */
.body3d-layout{display:grid;grid-template-columns:290px 1fr;gap:18px;align-items:start}
@media (max-width: 1040px){
  .body3d-layout{grid-template-columns:1fr}
  .body3d-layout .brain-side{position:static;max-height:none}
  .hud-note{display:none}
  .stage3d .hud.bottom{bottom:10px}
  .hud-pill{padding:6px 11px;font-size:11.5px}
}

/* ============ صحنه‌های بزرگ + ریسپانسیو عمیق ============ */
.stage-xl{height:680px}
.stage-lg{height:560px}
@media (max-width: 720px){
  .stage-xl{height:480px}
  .stage-lg{height:420px}
}
.modal{width:min(980px,100%)}
@media (max-width: 480px){
  .container{padding:0 14px}
  .hero .lede{font-size:15.5px}
  .stats b{font-size:22px}
  .section-head h2{font-size:21px}
  .grid{gap:12px}
  .card{padding:16px}
  .chips{gap:6px}
  .chip{padding:6px 12px;font-size:12.5px}
  .q-text{font-size:17.5px}
  .hero h1{font-size:clamp(32px,10vw,42px)}
}