@import url('https://fonts.googleapis.com/css2?family=Noto+Naskh+Arabic:wght@400;600;700&family=Noto+Sans+Arabic:wght@300;400;500;700;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root{
  --bg:#020617;
  --bg-soft:#070f21;
  --card:rgba(255,255,255,.045);
  --card-2:rgba(255,255,255,.075);
  --border:rgba(148,163,184,.16);
  --border-strong:rgba(148,163,184,.32);
  --text:#f1f5f9;
  --muted:#94a3b8;
  --dim:#64748b;
  --accent:#22c55e;
  --accent-soft:rgba(34,197,94,.13);
  --cyan:#22d3ee;
  --cyan-soft:rgba(34,211,238,.12);
  --amber:#f59e0b;
  --amber-soft:rgba(245,158,11,.12);
  --red:#ef4444;
  --red-soft:rgba(239,68,68,.12);
  --violet:#a78bfa;
  --radius:14px;
  --radius-sm:9px;
  --radius-lg:22px;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'Noto Sans Arabic',ui-sans-serif,system-ui,sans-serif;
  --display:'Noto Naskh Arabic',serif;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --sidebar:288px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  background:var(--bg);color:var(--text);font-family:var(--sans);font-weight:400;
  line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased;direction:rtl;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:-30% -20% auto -20%;height:70vh;pointer-events:none;z-index:0;
  background:radial-gradient(ellipse at 50% 0%,rgba(34,197,94,.18),transparent 62%),
             radial-gradient(ellipse at 80% 10%,rgba(34,211,238,.10),transparent 55%);
}
::selection{background:rgba(34,197,94,.3);color:#fff}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}

/* ── Progress ── */
#progress{position:fixed;top:0;right:0;height:3px;width:0;z-index:80;
  background:linear-gradient(90deg,var(--accent),var(--cyan));transition:width .1s linear}

/* ── Top bar ── */
.topbar{
  position:sticky;top:0;z-index:60;display:flex;align-items:center;gap:1rem;
  padding:.7rem 1.4rem;background:rgba(2,6,23,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:700;font-size:.95rem;white-space:nowrap}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 2.4s infinite}
.brand small{display:block;font-size:.68rem;font-weight:400;color:var(--dim);line-height:1.2}
.topbar .spacer{flex:1}
.searchbox{position:relative;flex:0 1 320px;min-width:120px}
.searchbox input{
  width:100%;padding:.5rem .9rem .5rem 2rem;font-family:var(--sans);font-size:.82rem;color:var(--text);
  background:rgba(255,255,255,.05);border:1px solid var(--border);border-radius:999px;outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.searchbox input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(34,197,94,.15)}
.searchbox svg{position:absolute;left:.7rem;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--dim)}
.menu-btn{display:none;background:var(--card);border:1px solid var(--border);color:var(--text);
  border-radius:8px;padding:.4rem .6rem;cursor:pointer}
.menu-btn svg{width:18px;height:18px;display:block}

/* ── Shell ── */
.shell{display:grid;grid-template-columns:var(--sidebar) minmax(0,1fr);gap:0;position:relative;z-index:1;align-items:start}

/* ── Sidebar ── */
.sidebar{
  position:sticky;top:57px;max-height:calc(100vh - 57px);overflow-y:auto;
  padding:1.4rem 1.1rem 3rem;border-left:1px solid var(--border);
  scrollbar-width:thin;scrollbar-color:var(--border) transparent;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:var(--border);border-radius:99px}
.toc-title{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin:0 0 .7rem}
.toc{list-style:none;display:flex;flex-direction:column;gap:1px}
.toc a{
  display:flex;align-items:center;gap:.55rem;padding:.42rem .6rem;border-radius:8px;
  color:var(--muted);font-size:.84rem;line-height:1.5;transition:all .18s;border-right:2px solid transparent;
}
.toc a:hover{background:var(--card);color:var(--text);text-decoration:none}
.toc a.active{background:var(--accent-soft);color:#d7ffe6;border-right-color:var(--accent)}
.toc .num{font-family:var(--mono);font-size:.68rem;color:var(--dim);min-width:20px}
.toc a.active .num{color:var(--accent)}
.toc .hidden{display:none}
.progress-chip{
  margin-top:1.2rem;padding:.7rem .85rem;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--card);font-size:.78rem;color:var(--muted);
}
.progress-chip b{color:var(--accent);font-family:var(--mono)}
.bar{height:5px;border-radius:99px;background:rgba(255,255,255,.08);margin-top:.5rem;overflow:hidden}
.bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--cyan));transition:width .3s}

/* ── Main ── */
main{padding:0 2.2rem 5rem;max-width:1040px}
.section{padding:3.2rem 0 1rem;border-bottom:1px dashed rgba(148,163,184,.12)}
.section:last-of-type{border-bottom:none}
.eyebrow{display:inline-flex;align-items:center;gap:.45rem;font-family:var(--mono);font-size:.7rem;
  letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.6rem}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
h1,h2,h3,h4{line-height:1.45;font-weight:700;letter-spacing:0}
h1{font-family:var(--display);font-size:clamp(2rem,4.4vw,3.1rem);font-weight:700;line-height:1.25}
h2{font-size:clamp(1.35rem,2.6vw,1.85rem);margin-bottom:.7rem}
h3{font-size:1.14rem;margin:1.9rem 0 .7rem;color:#e8f2ff;position:relative;padding-right:.75rem}
h3::before{content:"";position:absolute;right:0;top:.35em;bottom:.35em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--accent),var(--cyan))}
h4{font-size:.98rem;margin:1.3rem 0 .5rem;color:var(--cyan);font-weight:600}
p{margin:.7rem 0;color:#d3dded}
p.lead{font-size:1.05rem;color:#e2eaf6}
strong{color:#fff;font-weight:700}
em{color:var(--amber);font-style:normal;font-weight:500}
ul,ol{margin:.7rem 1.4rem .9rem 0;color:#d3dded}
li{margin:.32rem 0}
li::marker{color:var(--accent)}
.small{font-size:.84rem;color:var(--muted)}
.mono{font-family:var(--mono);font-size:.86em;direction:ltr;display:inline-block;
  background:rgba(34,211,238,.1);color:#a5f3fc;padding:.05em .45em;border-radius:5px;border:1px solid rgba(34,211,238,.18)}
hr{border:none;border-top:1px solid var(--border);margin:2rem 0}
kbd{font-family:var(--mono);font-size:.78em;background:#111c33;border:1px solid var(--border-strong);
  border-bottom-width:2px;border-radius:5px;padding:.1em .4em;direction:ltr;display:inline-block}

/* ── Code blocks ── */
.code{
  position:relative;margin:1rem 0;border:1px solid var(--border);border-radius:var(--radius);
  background:#060d1c;overflow:hidden;direction:ltr;text-align:left;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.code-head{
  display:flex;align-items:center;gap:.5rem;padding:.45rem .8rem;
  background:rgba(255,255,255,.035);border-bottom:1px solid var(--border);
  font-family:var(--mono);font-size:.7rem;color:var(--dim);letter-spacing:.04em;
}
.code-head .tag{color:var(--accent);background:var(--accent-soft);padding:.05rem .45rem;border-radius:5px;font-size:.66rem}
.code-head .dots{display:flex;gap:4px;margin-right:auto}
.code-head .dots i{width:8px;height:8px;border-radius:50%;background:#2a3a55}
.code-head .dots i:first-child{background:#ef4444}
.code-head .dots i:nth-child(2){background:#f59e0b}
.code-head .dots i:nth-child(3){background:#22c55e}
.copy{
  margin-right:.3rem;margin-left:auto;background:rgba(255,255,255,.06);border:1px solid var(--border);
  color:var(--muted);font-family:var(--mono);font-size:.66rem;padding:.2rem .55rem;border-radius:6px;
  cursor:pointer;transition:all .18s;
}
.copy:hover{background:var(--accent-soft);color:var(--accent);border-color:rgba(34,197,94,.4)}
.copy.done{background:rgba(34,197,94,.2);color:var(--accent);border-color:var(--accent)}
.code pre{
  margin:0;padding:.9rem 1rem;overflow-x:auto;font-family:var(--mono);font-size:.8rem;line-height:1.85;
  color:#c9e3ff;tab-size:2;
}
.code pre::-webkit-scrollbar{height:7px}
.code pre::-webkit-scrollbar-thumb{background:#243352;border-radius:99px}
.code .c{color:#64748b}          /* comment */
.code .p{color:var(--accent)}    /* prompt / command */
.code .s{color:var(--amber)}     /* string / payload */
.code .k{color:var(--violet)}    /* keyword */
.code .o{color:#7dd3fc}          /* output */
.code .x{color:#fca5a5}          /* danger */
.code.out pre{color:#9fe8c0}

/* ── Callouts ── */
.callout{
  position:relative;margin:1.1rem 0;padding:.95rem 1rem .95rem 1rem;
  border-radius:var(--radius);border:1px solid var(--border);background:var(--card);
  border-right:3px solid var(--cyan);padding-right:1.1rem;
}
.callout .ttl{display:flex;align-items:center;gap:.45rem;font-weight:700;font-size:.86rem;margin-bottom:.3rem;color:#e6f6ff}
.callout .ttl svg{width:15px;height:15px;flex:none}
.callout p{margin:.3rem 0;font-size:.92rem}
.callout p:last-child{margin-bottom:0}
.callout.warn{border-right-color:var(--amber);background:var(--amber-soft)}
.callout.warn .ttl{color:#fcd34d}
.callout.danger{border-right-color:var(--red);background:var(--red-soft)}
.callout.danger .ttl{color:#fca5a5}
.callout.tip{border-right-color:var(--accent);background:var(--accent-soft)}
.callout.tip .ttl{color:#86efac}
.callout.info{border-right-color:var(--cyan);background:var(--cyan-soft)}
.callout.bug{border-right-color:var(--violet);background:rgba(167,139,250,.1)}
.callout.bug .ttl{color:#c4b5fd}

/* ── Badges & pills ── */
.badge{display:inline-flex;align-items:center;gap:.3rem;font-family:var(--mono);font-size:.68rem;
  font-weight:500;padding:.14rem .52rem;border-radius:999px;background:var(--cyan-soft);color:#7dd3fc;
  border:1px solid rgba(34,211,238,.25);direction:ltr;white-space:nowrap}
.badge.g{background:var(--accent-soft);color:#6ee7a0;border-color:rgba(34,197,94,.3)}
.badge.r{background:var(--red-soft);color:#fca5a5;border-color:rgba(239,68,68,.3)}
.badge.a{background:var(--amber-soft);color:#fcd34d;border-color:rgba(245,158,11,.3)}
.badge.v{background:rgba(167,139,250,.13);color:#c4b5fd;border-color:rgba(167,139,250,.3)}
.badge.n{background:rgba(148,163,184,.1);color:#cbd5e1;border-color:rgba(148,163,184,.25)}
.pill-row{display:flex;flex-wrap:wrap;gap:.4rem;margin:.6rem 0}

/* ── Cards / grids ── */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.1rem 1.15rem;backdrop-filter:blur(8px);transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--border-strong)}
.card h4{margin-top:0;color:#e8f2ff;font-size:.95rem}
.card p{font-size:.87rem;color:var(--muted);margin:.35rem 0 0}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:.85rem;margin:1rem 0}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.85rem;margin:1rem 0}
.stat{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:.9rem 1rem;text-align:center}
.stat b{display:block;font-family:var(--mono);font-size:1.45rem;color:var(--accent);line-height:1.4}
.stat span{font-size:.75rem;color:var(--dim)}

/* ── Tables ── */
.table-wrap{overflow-x:auto;margin:1.1rem 0;border:1px solid var(--border);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:.84rem;min-width:520px}
thead th{
  background:rgba(255,255,255,.05);color:#dbeafe;text-align:right;font-weight:700;font-size:.78rem;
  padding:.65rem .8rem;border-bottom:1px solid var(--border-strong);white-space:nowrap;
}
tbody td{padding:.6rem .8rem;border-bottom:1px solid rgba(148,163,184,.09);color:#cbd5e1;vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:rgba(255,255,255,.028)}
td .mono,th .mono{font-size:.78rem}
.sev{font-family:var(--mono);font-size:.68rem;padding:.1rem .45rem;border-radius:5px;white-space:nowrap}
.sev.c{background:rgba(239,68,68,.18);color:#fca5a5}
.sev.h{background:rgba(245,158,11,.18);color:#fcd34d}
.sev.m{background:rgba(34,211,238,.18);color:#7dd3fc}
.sev.l{background:rgba(34,197,94,.16);color:#86efac}

/* ── Steps ── */
.steps{list-style:none;margin:1.1rem 0;padding:0;counter-reset:s;position:relative}
.steps>li{
  counter-increment:s;position:relative;padding:.15rem 2.4rem .15rem 0;margin:0 0 1rem;
  border-right:1px solid rgba(148,163,184,.18);
}
.steps>li::before{
  content:counter(s);position:absolute;right:-13px;top:.15rem;width:25px;height:25px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--mono);font-size:.72rem;font-weight:700;
  background:#0b1425;color:var(--accent);border:1px solid rgba(34,197,94,.45);
}
.steps>li:last-child{border-right-color:transparent}
.steps>li b.st{display:block;color:#fff;font-size:.92rem;margin-bottom:.1rem}
.steps>li p{margin:.2rem 0;font-size:.9rem}

/* ── Details / levels ── */
details{border:1px solid var(--border);border-radius:var(--radius);background:var(--card);margin:.7rem 0;overflow:hidden}
details[open]{background:rgba(255,255,255,.055)}
summary{
  cursor:pointer;padding:.7rem .95rem;font-weight:600;font-size:.88rem;color:#e2eaf6;
  list-style:none;display:flex;align-items:center;gap:.55rem;transition:background .18s;
}
summary::-webkit-details-marker{display:none}
summary:hover{background:rgba(255,255,255,.04)}
summary::after{content:"+";margin-right:auto;font-family:var(--mono);color:var(--accent);font-size:1rem}
details[open] summary::after{content:"–"}
details .body{padding:.2rem 1rem 1rem;border-top:1px solid var(--border)}
details .body>*:first-child{margin-top:.8rem}

/* ── Layer stack diagram ── */
.stack{position:relative;margin:1.4rem 0;padding-right:2.4rem}
.stack::before{
  content:"";position:absolute;right:12px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--cyan),var(--accent),var(--amber),var(--red));
  opacity:.55;border-radius:2px;
}
.layer{
  position:relative;display:grid;grid-template-columns:auto 1fr;gap:.85rem;align-items:start;
  padding:.8rem .95rem;margin:.55rem 0;border:1px solid var(--border);border-radius:var(--radius);
  background:linear-gradient(90deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  transition:all .2s;cursor:pointer;
}
.layer:hover{border-color:var(--border-strong);transform:translateX(-4px)}
.layer::before{
  content:"";position:absolute;right:-2.4rem;top:1.15rem;width:11px;height:11px;border-radius:50%;
  background:#0b1425;border:2px solid var(--cyan);z-index:2;
}
.layer.l1::before{border-color:var(--cyan)}
.layer.l2::before{border-color:#38bdf8}
.layer.l3::before{border-color:#818cf8}
.layer.l4::before{border-color:var(--violet)}
.layer.l5::before{border-color:var(--accent)}
.layer.l6::before{border-color:var(--amber)}
.layer.l7::before{border-color:var(--red)}
.layer .n{
  font-family:var(--mono);font-size:.7rem;color:var(--dim);border:1px solid var(--border);
  border-radius:8px;padding:.15rem .45rem;min-width:34px;text-align:center;
}
.layer .name{font-weight:700;font-size:.92rem;color:#fff;display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.layer .desc{font-size:.81rem;color:var(--muted);margin:.25rem 0 0}
.layer .tag-v{font-family:var(--mono);font-size:.66rem;color:#fca5a5;background:var(--red-soft);
  border:1px solid rgba(239,68,68,.28);padding:.08rem .42rem;border-radius:5px}
.layer.focus{border-color:rgba(239,68,68,.5);background:linear-gradient(90deg,rgba(239,68,68,.13),rgba(239,68,68,.02))}
.layer.focus::before{box-shadow:0 0 0 4px rgba(239,68,68,.18)}

/* ── Hero ── */
.hero{padding:3.4rem 0 2.4rem;border-bottom:1px solid var(--border)}
.hero .kicker{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--mono);font-size:.72rem;
  color:var(--accent);background:var(--accent-soft);border:1px solid rgba(34,197,94,.28);
  padding:.3rem .8rem;border-radius:999px;margin-bottom:1.1rem;letter-spacing:.06em}
.hero h1 span{background:linear-gradient(135deg,#6ee7a0,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{font-size:1.02rem;color:#b9c7da;max-width:62ch;margin-top:.9rem}
.hero .meta{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1.4rem}
.hero .meta span{font-family:var(--mono);font-size:.72rem;color:var(--muted);border:1px solid var(--border);
  border-radius:999px;padding:.25rem .7rem;background:rgba(255,255,255,.03)}

/* ── Vuln block header ── */
.vuln{border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.1rem 1.2rem;margin:1.6rem 0;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.012));scroll-margin-top:80px}
.vuln-head{display:flex;align-items:flex-start;gap:.8rem;flex-wrap:wrap;margin-bottom:.5rem}
.vuln-head h3{margin:0;padding-right:0;font-size:1.1rem}
.vuln-head h3::before{display:none}
.vuln-head .pill{font-family:var(--mono);font-size:.68rem;color:var(--dim);border:1px solid var(--border);
  border-radius:6px;padding:.1rem .45rem}
.vuln .goal{font-size:.88rem;color:var(--muted);margin:.2rem 0 .8rem;padding-right:.1rem}

/* ── Result box ── */
.result{margin:.9rem 0;border-radius:var(--radius);border:1px solid rgba(34,197,94,.25);
  background:rgba(34,197,94,.07);padding:.8rem .95rem}
.result .ttl{font-size:.75rem;font-family:var(--mono);letter-spacing:.08em;color:var(--accent);margin-bottom:.35rem}
.result pre{margin:0;font-family:var(--mono);font-size:.78rem;color:#9fe8c0;direction:ltr;text-align:left;overflow-x:auto;line-height:1.75}

/* ── Footer ── */
footer{padding:2.2rem 0 3rem;border-top:1px solid var(--border);margin-top:3rem;color:var(--dim);font-size:.82rem}
footer .row{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;align-items:center}

/* ── Animations ── */
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.85)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.reveal{opacity:0}
.reveal.in{animation:fadeUp .55s ease forwards}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1}
}

/* ── Responsive ── */
@media (max-width:1024px){
  :root{--sidebar:250px}
  main{padding:0 1.4rem 4rem}
}
@media (max-width:880px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;top:57px;right:0;width:min(84vw,320px);height:calc(100vh - 57px);
    background:#050c1a;border-left:1px solid var(--border);z-index:55;transform:translateX(100%);
    transition:transform .25s ease;max-height:none}
  .sidebar.open{transform:none;box-shadow:-20px 0 60px rgba(0,0,0,.6)}
  .menu-btn{display:block}
  .searchbox{flex:1 1 auto;min-width:0}
  main{padding:0 1rem 4rem}
  .hero{padding:2.4rem 0 1.8rem}
  h1{font-size:clamp(1.6rem,7vw,2.2rem)}
  .stack{padding-right:1.9rem}
  .layer::before{right:-1.9rem}
  .vuln{padding:.9rem .85rem}
}
@media (max-width:520px){
  body{font-size:15px}
  .brand small{display:none}
  .code pre{font-size:.72rem;padding:.75rem}
  .grid-3{grid-template-columns:repeat(auto-fit,minmax(140px,1fr))}
  .vid{display:none}
}
@media print{
  .topbar,.sidebar,#progress,.copy{display:none!important}
  body{background:#fff;color:#111}
  .shell{display:block}
  .code{background:#f4f6fa}
  .code pre{color:#0b1220}
  details{break-inside:avoid}
  details:not([open]) .body{display:block}
}