:root{
  --bg:#06111F; --bg2:#0A1A33; --card:#0E2140; --line:#1C3156;
  --text:#E8EEF7; --muted:#93A4BF; --green:#14B86E; --green2:#1FCF80; --red:#F0506E;
  --radius:18px; --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Vazirmatn",Tahoma,sans-serif;background:var(--bg);color:var(--text);line-height:1.9;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* header */
header{position:sticky;top:0;z-index:20;background:rgba(7,17,31,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:12px}
.brand svg{width:44px;height:44px;flex:none}
.brand b{display:block;font-size:19px;font-weight:800;line-height:1.2}
.brand small{display:block;font-size:12px;color:var(--muted)}
.menu{display:flex;gap:28px;font-size:15px;color:var(--muted)}
.menu a:hover{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:12px;font-weight:700;font-size:15px;transition:.2s}
.btn-green{background:var(--green);color:#04210F}
.btn-green:hover{background:var(--green2)}
.btn-ghost{border:1px solid var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--green);color:var(--green)}
.btn-yt{background:#FF0033;color:#fff}
.btn-yt:hover{filter:brightness(1.1)}
.btn .yt{width:20px;height:20px;flex:none}
.burger{display:none;background:none;border:0;color:var(--text);cursor:pointer;line-height:0}

/* hero */
.hero{position:relative;overflow:hidden;padding:90px 0 70px}
.hero::before{content:"";position:absolute;inset:-40% -10% auto auto;width:700px;height:700px;background:radial-gradient(circle,rgba(20,184,110,.18),transparent 65%)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.tag{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:99px;font-size:13px;color:var(--green);margin-bottom:18px}
h1{font-size:clamp(32px,5vw,54px);line-height:1.35;font-weight:800;margin-bottom:18px}
h1 span{color:var(--green)}
.lead{color:var(--muted);font-size:18px;max-width:540px;margin-bottom:30px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.stats{display:flex;gap:30px;margin-top:40px;flex-wrap:wrap}
.stats>div{display:flex;align-items:center;gap:12px}
.stats i{display:grid;place-items:center;width:48px;height:48px;border-radius:12px;background:rgba(20,184,110,.12);color:var(--green);flex:none}
.stats .ic{width:24px;height:24px}
.stats b{display:block;font-size:22px;font-weight:800;line-height:1.3}
.stats span{font-size:13px;color:var(--muted)}
.hero-art{background:linear-gradient(160deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:28px;padding:28px;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center}
.hero-art svg{width:78%;height:auto;filter:drop-shadow(0 20px 60px rgba(20,184,110,.25))}

/* sections */
section{padding:70px 0}
.head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:30px;flex-wrap:wrap}
h2{font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.4}
.head p{color:var(--muted)}
.more{color:var(--green);font-weight:700;font-size:15px}

/* videos */
.videos{background:var(--bg2);border-block:1px solid var(--line)}
.vgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.vcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:.25s;text-align:right;font:inherit;color:inherit;padding:0;width:100%}
.vcard:hover{transform:translateY(-4px);border-color:var(--green)}
.thumb{position:relative;aspect-ratio:16/9;background:#000}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb::after{content:"";position:absolute;inset:0;margin:auto;width:58px;height:58px;border-radius:50%;background:rgba(7,17,31,.75) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M8 5v14l11-7z' fill='%2314B86E'/%3E%3C/svg%3E") center/26px no-repeat}
.vcard h3{font-size:16px;font-weight:700;padding:14px 16px 4px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vcard time{display:block;padding:0 16px 14px;font-size:13px;color:var(--muted)}
.player{aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:#000}
.player iframe{width:100%;height:100%;border:0}
.skeleton .thumb{animation:pulse 1.4s infinite}
@keyframes pulse{50%{opacity:.5}}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal.open{display:flex}
.modal .box{width:min(960px,100%);aspect-ratio:16/9;position:relative}
.modal iframe{width:100%;height:100%;border:0;border-radius:14px}
.modal button{position:absolute;top:-46px;left:0;background:none;border:0;color:#fff;font-size:32px;cursor:pointer}

/* path */
.path{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative;transition:.25s}
.step:hover{border-color:var(--green)}
.step::before{counter-increment:s;content:counter(s,persian);position:absolute;top:18px;left:20px;font-size:40px;font-weight:800;color:var(--line)}
.step .lvl{font-size:13px;color:var(--green);font-weight:700}
.step h3{font-size:19px;margin:6px 0 10px}
.step ul{list-style:none;color:var(--muted);font-size:14px}
.step li{padding:3px 0}
.step li a:hover{color:var(--green)}
.step li::before{content:"‹ ";color:var(--green)}

/* topics */
.topics{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.topic{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 14px;text-align:center;font-weight:700;font-size:15px;transition:.2s}
.topic:hover{border-color:var(--green);color:var(--green)}
.topic i{display:grid;place-items:center;width:48px;height:48px;margin:0 auto 10px;border-radius:12px;background:rgba(20,184,110,.12);color:var(--green)}
.topic .ic{width:24px;height:24px}
.topic:hover i{background:var(--green);color:#04210F}

/* articles */
.agrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.acard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
.acard:hover{transform:translateY(-4px);border-color:var(--green)}
.acard img{aspect-ratio:16/10;object-fit:cover;width:100%}
.acard div{padding:16px 18px 20px}
.acard h3{font-size:17px;line-height:1.7;margin-bottom:6px}
.acard p{font-size:14px;color:var(--muted)}

/* subscribe band */
.band{background:linear-gradient(120deg,#0E2A4A,#0B1A33);border:1px solid var(--line);border-radius:26px;padding:40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.band .brand svg{width:72px;height:72px}
.band h2{font-size:26px}
.band p{color:var(--muted)}

/* footer */
.risk{font-size:13px;color:var(--muted);background:rgba(240,80,110,.07);border:1px solid rgba(240,80,110,.25);border-radius:14px;padding:16px 20px;margin-top:40px}
footer{border-top:1px solid var(--line);padding:40px 0 30px;margin-top:40px;color:var(--muted);font-size:14px}
.fgrid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.flinks{display:flex;gap:22px;flex-wrap:wrap}
.flinks a:hover{color:var(--green)}

@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .hero-art{display:none}
  .vgrid,.agrid{grid-template-columns:repeat(2,1fr)}
  .path{grid-template-columns:repeat(2,1fr)}
  .topics{grid-template-columns:repeat(3,1fr)}
  .menu{display:none;position:absolute;top:72px;inset-inline:0;background:var(--bg2);flex-direction:column;padding:20px;gap:14px;border-bottom:1px solid var(--line)}
  .menu.open{display:flex}
  .burger{display:block}
  .nav .btn-yt{display:none}
}
@media (max-width:600px){
  .vgrid,.agrid,.path{grid-template-columns:1fr}
  .topics{grid-template-columns:repeat(2,1fr)}
  .hero{padding:60px 0 40px}
  .stats{gap:18px}
  .band{padding:28px}
}