:root{
  --bg:#eef1f8;
  --glass:rgba(255,255,255,.62);
  --glass-strong:rgba(255,255,255,.78);
  --glass-brd:rgba(255,255,255,.85);
  --bg-soft:rgba(255,255,255,.5);
  --bg-soft2:#e6eaf4;
  --text:#141a2b;
  --muted:#5a6478;
  --border:rgba(20,26,43,.10);
  --brand:#4f46e5;
  --brand2:#9333ea;
  --brand3:#06b6d4;
  --brand-soft:rgba(99,102,241,.12);
  --green:#15803d; --green-soft:rgba(34,197,94,.14);
  --yellow:#b45309; --yellow-soft:rgba(245,158,11,.16);
  --red:#dc2626; --red-soft:rgba(239,68,68,.13);
  --blue:#2563eb; --blue-soft:rgba(59,130,246,.14);
  --code-bg:rgba(255,255,255,.6);
  --shadow:0 8px 32px rgba(30,41,80,.10);
  --shadow-lg:0 20px 50px rgba(30,41,80,.16);
  --shadow-glow:0 12px 34px rgba(99,102,241,.35);
  --radius:18px;
  --sidebar-w:276px;
  --topbar-h:64px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; color:var(--text);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:15.5px; line-height:1.65; -webkit-font-smoothing:antialiased;
  background:
    radial-gradient(900px 500px at 8% -5%, rgba(99,102,241,.22), transparent 60%),
    radial-gradient(800px 520px at 100% 0%, rgba(168,85,247,.18), transparent 55%),
    radial-gradient(700px 600px at 50% 110%, rgba(6,182,212,.14), transparent 60%),
    var(--bg);
  background-attachment:fixed;
}
body::before{
  content:""; position:fixed; inset:0; z-index:-1; pointer-events:none;
  background-image:radial-gradient(rgba(20,26,43,.055) 1px, transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 40%, #000 30%, transparent 85%);
          mask-image:radial-gradient(ellipse at 50% 40%, #000 30%, transparent 85%);
}
::selection{background:rgba(99,102,241,.25)}
:focus-visible{outline:2px solid var(--brand); outline-offset:2px; border-radius:6px}

*::-webkit-scrollbar{width:10px; height:10px}
*::-webkit-scrollbar-track{background:transparent}
*::-webkit-scrollbar-thumb{background:rgba(20,26,43,.18); border-radius:99px; border:2px solid transparent; background-clip:content-box}
*::-webkit-scrollbar-thumb:hover{background:rgba(79,70,229,.55); border:2px solid transparent; background-clip:content-box}

.i{width:20px; height:20px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; flex:none}
.i-sm{width:15px; height:15px}

.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
          backdrop-filter:blur(18px) saturate(160%);
  border:1px solid var(--glass-brd);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.65);
}

a{color:var(--brand); text-decoration:none; text-underline-offset:3px}
a:hover{text-decoration:underline}
code{font-family:'JetBrains Mono',ui-monospace,Menlo,monospace; font-size:.88em; background:var(--code-bg); border:1px solid var(--border); border-radius:7px; padding:1px 6px; color:#4338ca; -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px)}
pre{margin:0; overflow-x:auto}
pre code{background:none; border:none; padding:0; color:inherit; font-size:13.5px; line-height:1.6}

/* ── top bar ─────────────────────────────────────────── */
.topbar{position:fixed; top:12px; left:14px; right:14px; height:var(--topbar-h); border-radius:18px; z-index:50; animation:slideDown .55s cubic-bezier(.22,1,.36,1) both}
.topbar-inner{height:100%; display:flex; align-items:center; gap:14px; padding:0 16px}
.menu-btn{display:none; background:rgba(255,255,255,.5); border:1px solid var(--glass-brd); border-radius:10px; padding:7px 9px; cursor:pointer; color:var(--text); align-items:center; transition:.18s}
.menu-btn:hover{background:#fff; transform:translateY(-1px)}
.brand{display:flex; align-items:center; gap:9px; font-weight:800; font-size:17px; color:var(--text); letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand-mark{display:inline-flex; align-items:center; justify-content:center; width:34px; height:34px; border-radius:11px; background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; font-size:12px; font-weight:800; box-shadow:0 6px 16px rgba(99,102,241,.4); animation:markGlow 4s ease-in-out infinite}
.brand-sub{font-weight:500; color:var(--muted); font-size:14px}
.topnav{margin-left:auto; display:flex; align-items:center; gap:6px}
.topnav a{padding:8px 13px; border-radius:10px; color:var(--text); font-size:14px; font-weight:500; transition:.18s}
.topnav a:hover{background:var(--brand-soft); color:var(--brand); text-decoration:none}
.github-link{color:#fff !important; background:linear-gradient(135deg,#1b2130,#000); box-shadow:0 6px 16px rgba(0,0,0,.22)}
.github-link:hover{transform:translateY(-1px); box-shadow:0 10px 22px rgba(0,0,0,.28) !important; background:linear-gradient(135deg,#1b2130,#000) !important}

/* ── sidebar ─────────────────────────────────────────── */
.layout{padding-top:calc(var(--topbar-h) + 30px); min-height:100vh}
.sidebar{position:fixed; top:calc(var(--topbar-h) + 30px); bottom:14px; left:14px; width:var(--sidebar-w); border-radius:20px; padding:16px 12px; overflow-y:auto; z-index:40; display:flex; flex-direction:column; animation:fadeUp .6s .1s cubic-bezier(.22,1,.36,1) backwards}
.search-wrap{position:relative; margin-bottom:16px}
.search-ico{position:absolute; left:11px; top:50%; transform:translateY(-50%); color:var(--muted); pointer-events:none}
.search-wrap input{width:100%; padding:10px 34px 10px 33px; border-radius:12px; border:1px solid var(--border); background:rgba(255,255,255,.75); font:inherit; font-size:14px; color:var(--text); transition:.18s; -webkit-appearance:none; appearance:none}
.search-wrap input:focus{outline:none; border-color:rgba(99,102,241,.5); box-shadow:0 0 0 4px rgba(99,102,241,.14)}
.search-wrap input::placeholder{color:var(--muted)}
.search-kbd{position:absolute; right:10px; top:50%; transform:translateY(-50%); font-size:12px; color:var(--muted); background:rgba(255,255,255,.7); border:1px solid var(--border); border-radius:6px; padding:0 6px; font-family:'JetBrains Mono',monospace}
.side-nav{flex:1}
.nav-group{margin-bottom:16px}
.nav-label{font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.09em; color:var(--muted); padding:0 10px; margin-bottom:7px}
.nav-link{position:relative; display:flex; align-items:center; gap:9px; padding:8px 10px; border-radius:11px; color:var(--text); font-size:14.5px; font-weight:500; transition:.16s; border:1px solid transparent; overflow:hidden}
.nav-link:hover{background:rgba(255,255,255,.75); text-decoration:none; transform:translateX(2px)}
.nav-link .i-sm{color:var(--muted); transition:.16s}
.nav-link:hover .i-sm{color:var(--brand)}
.nav-link.active{background:linear-gradient(90deg,rgba(99,102,241,.16),rgba(168,85,247,.07)); color:var(--brand); font-weight:650; border-color:rgba(99,102,241,.22)}
.nav-link.active .i-sm{color:var(--brand)}
.nav-link.active::before{content:""; position:absolute; left:0; top:14%; bottom:14%; width:3px; border-radius:3px; background:linear-gradient(180deg,var(--brand),var(--brand2))}
.sidebar-footer{padding-top:12px; border-top:1px solid var(--border); margin-top:10px}
.ver{font-size:12.5px; color:var(--muted)}
.overlay{position:fixed; inset:0; background:rgba(20,26,43,.4); -webkit-backdrop-filter:blur(3px); backdrop-filter:blur(3px); opacity:0; visibility:hidden; transition:.22s; z-index:35}

/* ── content ─────────────────────────────────────────── */
.content{margin-left:calc(var(--sidebar-w) + 28px); flex:1; padding:34px 44px 90px; max-width:1120px}
.page{display:none}
.page.active{display:block}
.page.active > *{animation:fadeUp .5s cubic-bezier(.22,1,.36,1) both}
.page.active > *:nth-child(1){animation-delay:.02s}
.page.active > *:nth-child(2){animation-delay:.07s}
.page.active > *:nth-child(3){animation-delay:.12s}
.page.active > *:nth-child(4){animation-delay:.17s}
.page.active > *:nth-child(5){animation-delay:.22s}
.page.active > *:nth-child(n+6){animation-delay:.26s}

h1{font-size:38px; line-height:1.12; letter-spacing:-.035em; margin:0 0 10px; font-weight:800}
h2{position:relative; font-size:21px; letter-spacing:-.02em; margin:42px 0 14px; padding-top:14px; border-top:1px solid var(--border); font-weight:750}
h2::before{content:""; position:absolute; top:-1px; left:0; width:64px; height:2px; border-radius:2px; background:linear-gradient(90deg,var(--brand),var(--brand2))}
h3{font-size:16.5px; letter-spacing:-.01em; margin:24px 0 8px; font-weight:700}
p{margin:10px 0}
ul,ol{padding-left:24px}
li{margin:5px 0}
li::marker{color:var(--brand); font-weight:700}
strong{font-weight:700}
hr{border:none; border-top:1px solid var(--border); margin:26px 0}
blockquote{margin:14px 0; padding:12px 16px; border-left:3px solid var(--brand); background:var(--brand-soft); border-radius:0 12px 12px 0; color:var(--muted)}

/* ── hero ────────────────────────────────────────────── */
.hero{text-align:center; padding:30px 0 6px; position:relative}
.hero-badge{display:inline-flex; align-items:center; gap:8px; font-size:12.5px; font-weight:600; color:var(--brand); padding:7px 16px; border-radius:999px; margin-bottom:22px; animation:fadeUp .5s both}
.hero-badge::before{content:""; width:7px; height:7px; border-radius:50%; background:#22c55e; animation:pulse 2.2s ease-in-out infinite}
.hero h1{font-size:64px; line-height:1.02; letter-spacing:-.045em; margin:0 0 6px; font-weight:850; animation:fadeUp .55s .05s cubic-bezier(.22,1,.36,1) both}
.grad{background:linear-gradient(120deg,var(--brand) 10%,var(--brand2) 55%,#ec4899 90%); background-size:200% auto; -webkit-background-clip:text; background-clip:text; color:transparent; animation:gradShift 6s ease-in-out infinite}
.lead{font-size:18px; color:var(--muted); max-width:760px; margin:14px auto 26px; animation:fadeUp .55s .12s cubic-bezier(.22,1,.36,1) both}
.lead-sm{font-size:16.5px; color:var(--muted); margin-top:0}
.hero-actions{display:flex; gap:12px; justify-content:center; flex-wrap:wrap; margin-bottom:36px; animation:fadeUp .55s .18s cubic-bezier(.22,1,.36,1) both}
.btn{display:inline-flex; align-items:center; gap:7px; padding:12px 24px; border-radius:13px; font-weight:600; font-size:15px; transition:.2s cubic-bezier(.22,1,.36,1); border:1px solid transparent}
.btn:hover{text-decoration:none; transform:translateY(-2px)}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; box-shadow:var(--shadow-glow)}
.btn-primary:hover{box-shadow:0 16px 40px rgba(99,102,241,.45)}
.btn-ghost{color:var(--text); border-color:var(--border)}
.btn-ghost:hover{border-color:rgba(99,102,241,.45); color:var(--brand); background:rgba(255,255,255,.7)}

.stats{display:grid; grid-template-columns:repeat(4,1fr); gap:14px; max-width:660px; margin:0 auto 8px}
.stat{border-radius:16px; padding:16px 8px; transition:.22s; animation:fadeUp .55s cubic-bezier(.22,1,.36,1) both; position:relative; overflow:hidden}
.stat::after{content:""; position:absolute; left:22%; right:22%; top:0; height:2px; background:linear-gradient(90deg,transparent,var(--brand),transparent); opacity:.65}
.stat:nth-child(1){animation-delay:.24s}.stat:nth-child(2){animation-delay:.3s}.stat:nth-child(3){animation-delay:.36s}.stat:nth-child(4){animation-delay:.42s}
.stat:hover{transform:translateY(-4px); box-shadow:var(--shadow-lg)}
.stat b{display:block; font-size:30px; letter-spacing:-.03em; background:linear-gradient(135deg,var(--brand),var(--brand2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.stat span{font-size:12.5px; color:var(--muted)}

.card-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:16px; margin:40px 0 10px}
.card{border-radius:var(--radius); padding:22px; color:var(--text); transition:.25s cubic-bezier(.22,1,.36,1); animation:fadeUp .55s .3s both}
.card h3{margin:0 0 6px}
.card p{font-size:14px; color:var(--muted); margin:0}
.card:hover{transform:translateY(-6px); box-shadow:var(--shadow-lg), 0 0 0 1px rgba(99,102,241,.25); text-decoration:none}
.card-ico{width:44px; height:44px; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,var(--brand-soft),rgba(168,85,247,.14)); border:1px solid rgba(99,102,241,.2); border-radius:13px; color:var(--brand); margin-bottom:14px; transition:.25s}
.card:hover .card-ico{transform:scale(1.08) rotate(-4deg); background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; border-color:transparent; box-shadow:0 8px 20px rgba(99,102,241,.38)}

/* ── tables ──────────────────────────────────────────── */
.table-wrap{overflow-x:auto; border-radius:var(--radius); background:var(--glass); -webkit-backdrop-filter:blur(18px) saturate(160%); backdrop-filter:blur(18px) saturate(160%); border:1px solid var(--glass-brd); box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.6); margin:14px 0}
table{width:100%; border-collapse:collapse; font-size:14.5px}
thead th{text-align:left; font-size:11.5px; text-transform:uppercase; letter-spacing:.07em; color:var(--muted); font-weight:700; padding:12px 16px; background:rgba(255,255,255,.55); border-bottom:1px solid var(--border); white-space:nowrap}
tbody td{padding:11px 16px; border-top:1px solid rgba(20,26,43,.06); vertical-align:top}
tbody tr{transition:.14s}
tbody tr:hover{background:rgba(99,102,241,.05)}
tbody tr:first-child td{border-top:none}
.matrix td:not(:first-child), .matrix th:not(:first-child){text-align:center}
.legend{font-size:14px; color:var(--muted)}

.pill{display:inline-block; font-size:12px; font-weight:600; padding:2px 9px; border-radius:999px; white-space:nowrap}
.pill-green{background:var(--green-soft); color:var(--green)}
.pill-blue{background:var(--blue-soft); color:var(--blue)}

.perm{display:inline-block; font-size:11.5px; font-weight:700; padding:2px 9px; border-radius:7px; letter-spacing:.02em; border:1px solid transparent}
.perm-ok{background:var(--green-soft); color:var(--green); border-color:rgba(34,197,94,.3)}
.perm-ask{background:var(--yellow-soft); color:var(--yellow); border-color:rgba(245,158,11,.35)}
.perm-no{background:var(--red-soft); color:var(--red); border-color:rgba(239,68,68,.3)}

/* ── code / terminal blocks ──────────────────────────── */
.code{position:relative; background:linear-gradient(160deg,#111827,#0f172a 60%,#1e1b4b); color:#dbe4ff; border-radius:var(--radius); padding:34px 20px 18px; margin:14px 0; overflow-x:auto; border:1px solid rgba(255,255,255,.09); box-shadow:var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,.09)}
.code::before{content:""; position:absolute; top:0; left:0; right:0; height:26px; background:rgba(255,255,255,.05); border-bottom:1px solid rgba(255,255,255,.07);
  background-image:
    radial-gradient(circle 5px at 14px 13px, #ff5f57 98%, transparent 100%),
    radial-gradient(circle 5px at 32px 13px, #febc2e 98%, transparent 100%),
    radial-gradient(circle 5px at 50px 13px, #28c840 98%, transparent 100%);
  border-radius:var(--radius) var(--radius) 0 0}
.code pre code{color:#dbe4ff; font-size:13.5px}

.steps{background:var(--glass); -webkit-backdrop-filter:blur(18px); backdrop-filter:blur(18px); border:1px solid var(--glass-brd); border-radius:var(--radius); padding:16px 16px 16px 40px; margin:14px 0; box-shadow:var(--shadow)}
.steps li{margin:8px 0}
.footer-cta{margin-top:44px; padding:26px 24px; border-radius:var(--radius); text-align:center; background:linear-gradient(#fff,#fff) padding-box, linear-gradient(135deg,var(--brand),var(--brand2),#06b6d4) border-box; border:1.5px solid transparent}
.footer-cta p{margin:6px 0}
.footer-links{display:flex; gap:16px; justify-content:center; flex-wrap:wrap; margin-top:12px; font-size:14px}
.muted{color:var(--muted); font-size:14px}
.noscript{background:var(--yellow-soft); border:1px solid rgba(245,158,11,.4); padding:14px; border-radius:12px}

.search-hidden{display:none !important}

@keyframes fadeUp{from{opacity:0; transform:translateY(14px)}to{opacity:1; transform:none}}
@keyframes slideDown{from{opacity:0; transform:translateY(-22px)}to{opacity:1; transform:none}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(34,197,94,.25)}50%{box-shadow:0 0 0 7px rgba(34,197,94,.08)}}
@keyframes gradShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes markGlow{0%,100%{box-shadow:0 6px 16px rgba(99,102,241,.4)}50%{box-shadow:0 6px 24px rgba(168,85,247,.55)}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important}
}

@media (max-width:960px){
  .menu-btn{display:inline-flex}
  .topbar{top:8px; left:8px; right:8px}
  .sidebar{top:calc(var(--topbar-h) + 22px); left:8px; bottom:8px; animation:none; transform:translateX(calc(-100% - 16px)); transition:transform .25s cubic-bezier(.22,1,.36,1); box-shadow:none}
  .sidebar.open{transform:none; box-shadow:var(--shadow-lg)}
  .sidebar.open ~ .overlay{opacity:1; visibility:visible}
  .content{margin-left:0; padding:26px 18px 70px}
  .hero h1{font-size:46px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .topnav a:not(.github-link){display:none}
}