:root{--bg:#0b1530;--bg2:#101d3d;--card:#16254a;--line:#24365f;--tx:#eef2ff;--mu:#8fa0c8;--ac:#3b9bff;--ac2:#7b5cff;--ub:#1d4fa8;--ubt:#fff;--act:#fff;--code:#060d1f;--sh:rgba(0,0,0,.5);--hi:rgba(255,255,255,.07)}
:root.light{--sh:rgba(90,70,30,.2);--hi:rgba(255,255,255,.85);color-scheme:light}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--bg);background:radial-gradient(1100px 560px at 88% -8%,color-mix(in srgb,var(--ac2) 22%,transparent),transparent 62%),radial-gradient(900px 520px at -8% 108%,color-mix(in srgb,var(--ac) 18%,transparent),transparent 60%),var(--bg);background-attachment:fixed;color:var(--tx);font-family:Vazirmatn,Tahoma,sans-serif;min-height:100vh;line-height:1.7}
a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;color:inherit}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5;background:var(--bg);background:color-mix(in srgb,var(--bg) 72%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.logo{font-weight:800;font-size:19px}
.logo{display:flex;align-items:center;gap:9px}
.logo span{background:linear-gradient(90deg,var(--ac),var(--ac2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo-img{width:34px;height:34px;border-radius:10px;box-shadow:0 6px 12px -6px var(--sh)}
.links{display:flex;gap:6px}.links a{padding:8px 15px;border-radius:20px;color:var(--mu);font-size:14px;transition:.15s}
.links a.on,.links a:hover{background:var(--card);color:var(--tx);box-shadow:0 6px 14px -8px var(--sh),inset 0 1px 0 var(--hi)}
.btn{background:linear-gradient(180deg,var(--ac),var(--ac2));border:0;border-radius:14px;padding:12px 26px;color:var(--act);font-size:15px;font-weight:700;display:inline-block;box-shadow:0 12px 22px -10px var(--sh),0 3px 0 rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.35);transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(2px);box-shadow:0 4px 10px -6px var(--sh),0 0 0 rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.2)}
.btn.ghost{background:linear-gradient(180deg,var(--card),var(--bg2));color:var(--tx);border:1px solid var(--line);font-weight:500}
.btn.sm{padding:7px 16px;font-size:13px;border-radius:11px}
.wrap{max-width:1100px;margin:auto;padding:20px}
.ic{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--ac),var(--ac2));display:grid;place-items:center;font-weight:800;color:var(--act);flex:none;box-shadow:0 6px 12px -4px var(--sh),inset 0 2px 0 rgba(255,255,255,.35),inset 0 -3px 0 rgba(0,0,0,.2)}
code.i{background:var(--code);padding:1px 6px;border-radius:6px;direction:ltr;display:inline-block;font-size:.92em}
pre{background:var(--code);color:var(--tx);border:1px solid var(--line);border-radius:12px;padding:14px 12px 12px;overflow:auto;direction:ltr;text-align:left;position:relative;white-space:pre;margin:10px 0;box-shadow:inset 0 2px 8px rgba(0,0,0,.25)}
pre button{position:absolute;top:6px;right:6px;background:var(--card);border:1px solid var(--line);border-radius:7px;padding:3px 9px;font-size:12px}
.d3,.feat,.card{background:linear-gradient(145deg,var(--hi),transparent 46%),var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 30px -18px var(--sh),0 2px 0 rgba(0,0,0,.18),inset 0 1px 0 var(--hi);transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .18s ease,box-shadow .2s}
.d3:hover,.feat:hover,.card:hover{box-shadow:0 26px 40px -20px var(--sh),0 2px 0 rgba(0,0,0,.18),inset 0 1px 0 var(--hi)}
.credit{text-align:center;color:var(--mu);font-size:12px;margin:26px 0 8px}.credit a{color:var(--ac);font-weight:600}
#toast{position:fixed;bottom:90px;left:50%;transform:translate(-50%,20px);background:var(--card);color:var(--tx);border:1px solid var(--line);padding:9px 18px;border-radius:14px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;z-index:99;box-shadow:0 14px 26px -12px var(--sh)}
#toast.on{opacity:1;transform:translate(-50%,0)}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}