:root{--bg:#07182e;--bg2:#0b2340;--gold:#d8b35f;--gold2:#fff0b6;--text:#f7fbff;--muted:#b8c7d9;--card:rgba(9,31,58,.82);--line:rgba(216,179,95,.42);--blue:#38a8ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Tahoma,"Segoe UI",Arial,sans-serif;direction:rtl;background:radial-gradient(circle at 50% 0,#123a69,transparent 36rem),linear-gradient(135deg,#03101f,#08203c 50%,#020812);color:var(--text);line-height:1.85}body:before{content:"";position:fixed;inset:0;background:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:42px 42px;pointer-events:none}.wrap{width:min(1180px,94vw);margin:auto}.topbar{position:sticky;top:0;z-index:20;background:rgba(4,15,30,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}.brand{display:flex;gap:.7rem;align-items:center;font-weight:900;color:var(--gold2);text-decoration:none}.brand .mark{width:42px;height:42px;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;box-shadow:0 0 20px rgba(216,179,95,.25)}.menu{display:flex;gap:.5rem;flex-wrap:wrap}.menu a,.chip,.btn{color:var(--text);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:.55rem .85rem;background:rgba(255,255,255,.05);font-size:.93rem}.menu a:hover,.chip:hover,.btn:hover{background:rgba(216,179,95,.16);border-color:var(--gold)}.hero{padding:3rem 0 2rem;text-align:center;position:relative}.kicker{color:var(--gold2);letter-spacing:.03em;font-weight:700}.hero h1{font-size:clamp(2rem,6vw,4.7rem);line-height:1.25;margin:.6rem 0;background:linear-gradient(180deg,#fff,#f4d77d 65%,#b58b3f);-webkit-background-clip:text;color:transparent}.hero p{font-size:clamp(1.05rem,2vw,1.35rem);color:var(--muted);max-width:900px;margin:0 auto 1.5rem}.hero-card{border:1px solid var(--line);border-radius:30px;background:linear-gradient(145deg,rgba(255,255,255,.09),rgba(255,255,255,.03));padding:1.3rem;box-shadow:0 24px 80px rgba(0,0,0,.34)}.hero-card img,.visual img{width:100%;border-radius:24px;border:1px solid rgba(216,179,95,.25);display:block}.grid{display:grid;gap:1rem}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.section{padding:2.2rem 0}.section h2{font-size:clamp(1.7rem,3vw,2.5rem);color:var(--gold2);margin:0 0 .8rem}.section .lead{color:var(--muted);max-width:920px}.card{border:1px solid var(--line);background:var(--card);border-radius:24px;padding:1.15rem;box-shadow:0 18px 60px rgba(0,0,0,.22);position:relative;overflow:hidden}.card:before{content:"";position:absolute;inset:-1px;background:radial-gradient(circle at 20% 10%,rgba(56,168,255,.15),transparent 18rem);pointer-events:none}.card h3{color:var(--gold2);margin:.2rem 0 .4rem;font-size:1.25rem}.card p{color:var(--muted);margin:.3rem 0}.num{font-weight:900;color:#06172b;background:linear-gradient(180deg,#fff0b6,#c99d47);border-radius:50%;width:38px;height:38px;display:inline-grid;place-items:center;margin-left:.5rem}.tag{display:inline-flex;align-items:center;gap:.4rem;color:var(--gold2);border:1px solid var(--line);border-radius:999px;padding:.2rem .65rem;font-size:.85rem;background:rgba(216,179,95,.08)}.actions{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1rem}.btn.gold{background:linear-gradient(180deg,#f1d27f,#ad7b27);color:#08172a;font-weight:900}.toc{display:flex;gap:.5rem;flex-wrap:wrap;margin:1rem 0}.main-layout{display:grid;grid-template-columns:280px 1fr;gap:1rem;align-items:start}.sidebar{position:sticky;top:76px}.sidebox{border:1px solid var(--line);border-radius:22px;background:rgba(6,22,43,.86);padding:1rem}.sidebox a{display:block;color:var(--muted);text-decoration:none;border-bottom:1px solid rgba(216,179,95,.14);padding:.55rem 0}.sidebox a:hover{color:var(--gold2)}.content h1{font-size:clamp(2rem,4vw,3.5rem);line-height:1.25;color:var(--gold2);margin:.4rem 0}.content h2{color:var(--gold2);font-size:1.7rem;border-bottom:1px solid var(--line);padding-bottom:.3rem;margin-top:2rem}.content h3{color:#fff;margin-bottom:.2rem}.content p,.content li{color:var(--muted);font-size:1.03rem}.content ul{padding-right:1.2rem}.callout{border:1px solid var(--line);border-right:5px solid var(--gold);background:rgba(216,179,95,.08);border-radius:18px;padding:1rem;margin:1rem 0}.mini{font-size:.9rem;color:var(--muted)}.relation{display:flex;gap:.5rem;flex-wrap:wrap}.footer{margin-top:3rem;padding:2rem 0;border-top:1px solid var(--line);color:var(--muted);text-align:center}.visual{margin:1rem 0}.cards-list{display:grid;gap:1rem}.feature-table{width:100%;border-collapse:collapse;overflow:hidden;border-radius:18px}.feature-table td,.feature-table th{border:1px solid rgba(216,179,95,.2);padding:.8rem;color:var(--muted)}.feature-table th{color:var(--gold2);background:rgba(216,179,95,.08)}@media(max-width:900px){.grid.two,.grid.three,.grid.four,.main-layout{grid-template-columns:1fr}.sidebar{position:relative;top:auto}.menu{display:none}.hero{padding-top:1.5rem}.content h1{font-size:2rem}.card{border-radius:18px}.hero-card{padding:.6rem;border-radius:20px}.hero-card img,.visual img{border-radius:16px}.nav{align-items:flex-start}.brand{font-size:.95rem}.mobile-jump{display:block}}@media(min-width:901px){.mobile-jump{display:none}}



/* ver02: luminous active sidebar choice - persistent and visible */
.sidebox a.active-glow,
.sidebox a.selected,
.sidebox a.current,
.sidebox a[aria-current="page"],
.sidebox a:focus {
 color:#eafff1 !important;
 border-bottom-color:rgba(63,255,137,.75) !important;
 background:linear-gradient(90deg,rgba(31,255,119,.32),rgba(31,255,119,.09)) !important;
 box-shadow:0 0 22px rgba(31,255,119,.55), inset 0 0 0 1px rgba(31,255,119,.38) !important;
 border-radius:12px;
 padding-right:.75rem !important;
 padding-left:.75rem !important;
 text-shadow:0 0 12px rgba(31,255,119,.8);
 font-weight:900;
}
.sidebox a.current::before,
.sidebox a.active-glow::before,
.sidebox a.selected::before {
 content:"●";
 color:#63ff98;
 margin-left:.45rem;
 filter:drop-shadow(0 0 8px #63ff98);
}
.external-panel{
 border:1px solid rgba(63,255,137,.45);
 background:linear-gradient(135deg,rgba(30,255,112,.14),rgba(216,179,95,.08));
 border-radius:22px;
 padding:1rem;
 margin:1.2rem 0;
 box-shadow:0 0 34px rgba(30,255,112,.16);
}
.btn.green{
 background:linear-gradient(180deg,#baffcb,#1dbb62);
 color:#041527 !important;
 border-color:rgba(147,255,180,.85);
 font-weight:900;
 box-shadow:0 0 24px rgba(30,255,112,.34);
}
.btn.green:hover{
 background:linear-gradient(180deg,#d5ffe0,#31d478) !important;
 border-color:#8dffad !important;
}


/* ver5 video library */
.video-actions-top{
 display:flex;
 gap:.7rem;
 flex-wrap:wrap;
 align-items:center;
 margin:1rem 0 1.25rem;
 padding:1rem;
 border:1px solid rgba(63,255,137,.45);
 border-radius:22px;
 background:linear-gradient(135deg,rgba(30,255,112,.12),rgba(56,168,255,.08),rgba(216,179,95,.07));
 box-shadow:0 0 38px rgba(30,255,112,.12);
}
.video-actions-top .label{
 color:var(--gold2);
 font-weight:900;
 margin-left:.25rem;
}
.btn.video{
 background:linear-gradient(180deg,#ccffd8,#20c967);
 color:#031323 !important;
 border-color:rgba(164,255,195,.9);
 font-weight:900;
 box-shadow:0 0 22px rgba(30,255,112,.34);
}
.btn.video:hover{
 background:linear-gradient(180deg,#e4ffeb,#37e17e) !important;
 border-color:#adffca !important;
}
.video-hero{
 border:1px solid var(--line);
 border-radius:30px;
 padding:1.25rem;
 background:linear-gradient(145deg,rgba(9,31,58,.92),rgba(4,15,30,.92));
 box-shadow:0 24px 80px rgba(0,0,0,.35);
}
.video-frame{
 position:relative;
 width:100%;
 aspect-ratio:16/9;
 overflow:hidden;
 border-radius:24px;
 border:1px solid rgba(216,179,95,.45);
 background:#020812;
 box-shadow:0 0 45px rgba(216,179,95,.16);
}
.video-frame iframe{
 position:absolute;
 inset:0;
 width:100%;
 height:100%;
 border:0;
}
.video-title-line{
 color:var(--gold2);
 font-size:clamp(1.4rem,3vw,2.6rem);
 margin:.35rem 0 1rem;
 line-height:1.35;
}
.video-page-actions{
 display:flex;
 gap:.7rem;
 flex-wrap:wrap;
 margin:1rem 0 1.2rem;
}


/* ver02: favicon-ready polished footer */
.site-footer{
 margin-top:3.5rem;
 padding:2.4rem 0;
 border-top:1px solid rgba(216,179,95,.42);
 background:linear-gradient(180deg,rgba(4,15,30,.15),rgba(4,15,30,.74));
 color:var(--muted);
 text-align:center;
}
.footer-grid{display:grid;gap:.75rem;place-items:center;}
.footer-brand{display:flex;align-items:center;justify-content:center;gap:.65rem;color:var(--gold2);font-weight:900;}
.footer-brand .mark{width:38px;height:38px;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;box-shadow:0 0 18px rgba(216,179,95,.22);}
.footer-links{display:flex;flex-wrap:wrap;gap:.55rem;justify-content:center;}
.footer-links a{color:var(--text);text-decoration:none;border:1px solid var(--line);border-radius:999px;padding:.35rem .75rem;background:rgba(255,255,255,.045);font-size:.88rem;}
.footer-links a:hover{color:#041527;background:linear-gradient(180deg,#ccffd8,#20c967);border-color:rgba(164,255,195,.9);box-shadow:0 0 18px rgba(30,255,112,.28);}
.site-footer p{margin:.1rem auto;max-width:820px;}
.site-footer small{color:rgba(184,199,217,.72);}