:root{
  --bg:#1C1917; --bg-2:#221D1A; --surface:#26211E; --surface-2:#2E2724;
  --primary:#EA580C; --primary-soft:rgba(234,88,12,.14); --secondary:#F97316;
  --accent:#3B82F6; --text:#FBF4EE; --text-2:#C9BEB6; --muted:#8E827C;
  --border:rgba(255,255,255,.08); --border-2:rgba(255,255,255,.16);
  --shadow-out:10px 10px 24px rgba(0,0,0,.45), -6px -6px 16px rgba(255,255,255,.035);
  --shadow-in:inset 5px 5px 12px rgba(0,0,0,.5), inset -4px -4px 10px rgba(255,255,255,.04);
  --r-sm:12px; --r-md:16px; --r-lg:22px; --r-xl:30px;
  --t:.22s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:'Noto Sans Arabic',system-ui,sans-serif;background:var(--bg);color:var(--text);
  line-height:1.65;-webkit-font-smoothing:antialiased;min-height:100vh;font-size:16px;
  background-image:radial-gradient(900px 520px at 88% -8%,rgba(234,88,12,.14),transparent 62%),
                   radial-gradient(760px 420px at 2% 102%,rgba(59,130,246,.10),transparent 60%);
  background-attachment:fixed;
}
.wrap{max-width:1060px;margin:0 auto;padding:0 20px}
.wrap-narrow{max-width:880px}
button,input,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}
.num{font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate;display:inline-block}
h1,h2,h3{line-height:1.35;font-weight:700}

/* ---------- header ---------- */
header.site{padding:44px 0 26px;text-align:center;position:relative}
.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  background:var(--primary-soft);border:1px solid rgba(234,88,12,.28);color:#FBBF8A;
  font-size:.82rem;font-weight:500;margin-bottom:18px}
.badge svg{width:15px;height:15px}
header.site h1{font-size:clamp(1.75rem,4.6vw,2.7rem);letter-spacing:-.5px}
header.site h1 em{font-style:normal;color:var(--primary)}
header.site p.sub{color:var(--text-2);font-size:clamp(.95rem,2.2vw,1.08rem);max-width:620px;margin:12px auto 0;font-weight:300}
.swap-globe{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:20px;color:var(--muted);font-size:.88rem}
.swap-globe .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.7}

/* ---------- tabs ---------- */
nav.tabs{position:sticky;top:0;z-index:40;padding:12px 0;margin-bottom:22px;
  background:rgba(28,25,23,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border)}
.tabtrack{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:4px 20px;max-width:1060px;margin:0 auto}
.tabtrack::-webkit-scrollbar{display:none}
.tab{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);color:var(--text-2);white-space:nowrap;
  font-size:.9rem;font-weight:500;transition:var(--t)}
.tab svg{width:17px;height:17px}
.tab:hover{background:var(--surface-2);color:var(--text);transform:translateY(-2px)}
.tab.on{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;
  border-color:transparent;box-shadow:0 8px 20px rgba(234,88,12,.32)}

/* ---------- converter ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);
  padding:26px;box-shadow:var(--shadow-out);animation:rise .45s cubic-bezier(.2,.8,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.cat-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.cat-head .ic{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;flex:none;
  background:var(--primary-soft);border:1px solid rgba(234,88,12,.3);color:var(--primary)}
.cat-head .ic svg{width:22px;height:22px}
.cat-head h2{font-size:1.22rem}
.cat-head p{color:var(--muted);font-size:.85rem;font-weight:300;margin-top:2px}
.grid2{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:end}
.panel{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;transition:var(--t)}
.panel:focus-within{border-color:rgba(234,88,12,.45);box-shadow:0 0 0 4px rgba(234,88,12,.09)}
.panel .flag{display:flex;align-items:center;gap:7px;font-size:.76rem;font-weight:600;letter-spacing:.4px;
  color:var(--muted);margin-bottom:10px;text-transform:uppercase}
.panel .flag b{color:var(--secondary);font-weight:600}
.panel.b .flag b{color:var(--accent)}
.panel input[type=number]{width:100%;background:transparent;border:none;font-size:clamp(1.6rem,5vw,2.2rem);
  font-weight:600;direction:ltr;text-align:left;padding:2px 0;outline:none;font-variant-numeric:tabular-nums}
.panel input[type=number]::-webkit-outer-spin-button,
.panel input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.panel input[type=number]{-moz-appearance:textfield}
.panel .inrow{display:flex;align-items:flex-end;gap:10px;border-bottom:1px solid var(--border-2);padding-bottom:8px}
.panel select{width:100%;margin-top:12px;padding:11px 13px;border-radius:var(--r-sm);
  background:var(--surface-2);border:1px solid var(--border);cursor:pointer;transition:var(--t);
  appearance:none;font-size:.92rem;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23C9BEB6' stroke-width='2.4' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat:no-repeat;background-position:left 13px center;padding-left:36px}
.panel select:hover{background-color:#352D29;border-color:var(--border-2)}
.panel select option{background:#2E2724;color:var(--text)}
.midswap{display:grid;place-items:center;gap:6px;padding-bottom:34px}
.swapbtn{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;
  box-shadow:0 8px 22px rgba(234,88,12,.36);transition:var(--t)}
.swapbtn:hover{transform:translateY(-3px) rotate(180deg);box-shadow:0 12px 26px rgba(234,88,12,.46)}
.swapbtn svg{width:20px;height:20px}
.note{display:flex;gap:9px;align-items:flex-start;margin-top:18px;padding:13px 15px;border-radius:var(--r-md);
  background:rgba(59,130,246,.09);border:1px solid rgba(59,130,246,.2);color:#BFD4F7;font-size:.85rem;font-weight:300}
.note svg{width:17px;height:17px;flex:none;margin-top:3px}
.note.warn{background:rgba(234,88,12,.09);border-color:rgba(234,88,12,.22);color:#F3C39C}

/* ---------- chips + actions ---------- */
.sec-label{font-size:.78rem;font-weight:600;letter-spacing:.6px;color:var(--muted);
  text-transform:uppercase;margin:22px 0 10px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:8px 14px;border-radius:999px;background:var(--bg-2);border:1px solid var(--border);
  color:var(--text-2);font-size:.85rem;transition:var(--t)}
.chip:hover{background:var(--primary-soft);border-color:rgba(234,88,12,.4);color:#FBBF8A;transform:translateY(-2px)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:var(--r-sm);
  background:var(--surface-2);border:1px solid var(--border);color:var(--text-2);font-size:.9rem;
  font-weight:500;transition:var(--t)}
.btn svg{width:17px;height:17px}
.btn:hover{background:#3A322D;color:var(--text);transform:translateY(-2px);box-shadow:0 8px 18px rgba(0,0,0,.32)}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-color:transparent;
  box-shadow:0 8px 20px rgba(234,88,12,.3)}
.btn.primary:hover{box-shadow:0 12px 26px rgba(234,88,12,.42)}

/* ---------- pairs table ---------- */
.ptable{width:100%;border-collapse:separate;border-spacing:0;font-size:.9rem;margin-top:6px}
.ptable th{text-align:right;padding:11px 14px;color:var(--muted);font-weight:600;font-size:.78rem;
  letter-spacing:.4px;text-transform:uppercase;border-bottom:1px solid var(--border)}
.ptable td{padding:11px 14px;border-bottom:1px solid rgba(255,255,255,.05);color:var(--text-2)}
.ptable tr:last-child td{border-bottom:none}
.ptable tbody tr{transition:var(--t)}
.ptable tbody tr:hover{background:rgba(234,88,12,.06)}
.ptable td:first-child{color:var(--text);font-weight:500}
.ptable .val{color:var(--secondary);font-weight:600}

/* ---------- toast ---------- */
#toast{position:fixed;bottom:26px;left:50%;transform:translate(-50%,26px);opacity:0;pointer-events:none;
  display:flex;align-items:center;gap:9px;padding:12px 20px;border-radius:999px;z-index:90;
  background:#332B27;border:1px solid var(--border-2);box-shadow:0 14px 34px rgba(0,0,0,.5);
  font-size:.9rem;transition:var(--t)}
#toast.show{opacity:1;transform:translate(-50%,0)}
#toast svg{width:17px;height:17px;color:#4ADE80}

/* ---------- size charts ---------- */
.seg{display:inline-flex;gap:6px;padding:5px;border-radius:999px;background:var(--bg-2);
  border:1px solid var(--border);margin:4px 0 18px;flex-wrap:wrap}
.seg button{padding:9px 20px;border-radius:999px;color:var(--text-2);font-size:.89rem;font-weight:500;transition:var(--t)}
.seg button:hover{color:var(--text)}
.seg button.on{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;
  box-shadow:0 6px 16px rgba(234,88,12,.3)}
.tablewrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-lg);background:var(--bg-2)}
.stable{width:100%;border-collapse:separate;border-spacing:0;font-size:.9rem;min-width:420px}
.stable th{position:sticky;top:0;background:#332B27;text-align:right;padding:13px 16px;font-size:.79rem;
  font-weight:600;color:var(--muted);letter-spacing:.4px;text-transform:uppercase;white-space:nowrap}
.stable td{padding:12px 16px;border-top:1px solid rgba(255,255,255,.055);color:var(--text-2);white-space:nowrap}
.stable td:first-child{color:var(--text);font-weight:600}
.stable tbody tr{transition:var(--t)}
.stable tbody tr:hover{background:rgba(234,88,12,.07)}
.stable tr.hit{background:var(--primary-soft);box-shadow:inset 3px 0 0 var(--primary)}
.stable tr.hit td{color:#FBBF8A}
.lookup{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap;margin-bottom:18px;padding:16px;
  border-radius:var(--r-lg);background:var(--bg-2);border:1px solid var(--border)}
.lookup .fld{flex:1 1 190px}
.lookup label{display:block;font-size:.8rem;color:var(--muted);margin-bottom:7px;font-weight:500}
.lookup input,.lookup select{width:100%;padding:12px 14px;border-radius:var(--r-sm);background:var(--surface-2);
  border:1px solid var(--border);outline:none;transition:var(--t)}
.lookup input:focus,.lookup select:focus{border-color:rgba(234,88,12,.5)}
.res-box{flex:0 1 230px;text-align:center;padding:12px;border-radius:var(--r-sm);
  background:var(--primary-soft);border:1px dashed rgba(234,88,12,.4)}
.res-box span{display:block;font-size:.78rem;color:var(--muted);margin-bottom:4px}
.res-box strong{font-size:1.5rem;color:var(--secondary);font-weight:700}

/* ---------- footer ---------- */
footer.site{margin:46px 0 34px;padding-top:26px;border-top:1px solid var(--border);
  color:var(--muted);font-size:.85rem;text-align:center;font-weight:300}
footer.site .fbrand{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);font-weight:600;margin-bottom:8px}
footer.site .fbrand svg{width:17px;height:17px;color:var(--primary)}
footer.site p{max-width:640px;margin:0 auto}

/* ---------- responsive ---------- */
@media (max-width:720px){
  header.site{padding:32px 0 20px}
  .card{padding:20px;border-radius:var(--r-lg)}
  .grid2{grid-template-columns:1fr;gap:10px}
  .midswap{padding:4px 0;transform:rotate(90deg)}
  .midswap .swapbtn{width:46px;height:46px}
  .lookup{padding:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}