:root{
  --bg:#f5f7fa; --surface:#ffffff; --surface-2:#f0f4f8; --ink:#0f1b2d; --muted:#5b6b7f; --line:#e3e8ef;
  --accent:#0f766e; --accent-2:#115e59; --accent-ink:#ffffff; --accent-soft:#e6f4f2; --gold:#b8892b;
  --shadow:0 1px 2px rgba(15,27,45,.04),0 4px 16px rgba(15,27,45,.06);
  --shadow-lg:0 2px 4px rgba(15,27,45,.05),0 12px 32px rgba(15,27,45,.10);
  --radius:16px;
  --font:"IBM Plex Sans Arabic",Tahoma,"Segoe UI",sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0b1220; --surface:#111a2b; --surface-2:#16213a; --ink:#e8eef7; --muted:#9aabc2; --line:#22304a;
  --accent:#2dd4bf; --accent-2:#5eead4; --hero-a:#115e59;--hero-b:#0b3b3c; --accent-ink:#04201c; --accent-soft:#0f2e33; --gold:#e0b45a;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 16px rgba(0,0,0,.25); --shadow-lg:0 12px 32px rgba(0,0,0,.4); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0b1220; --surface:#111a2b; --surface-2:#16213a; --ink:#e8eef7; --muted:#9aabc2; --line:#22304a;
  --accent:#2dd4bf; --accent-2:#5eead4; --hero-a:#115e59;--hero-b:#0b3b3c; --accent-ink:#04201c; --accent-soft:#0f2e33; --gold:#e0b45a;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 4px 16px rgba(0,0,0,.25); --shadow-lg:0 12px 32px rgba(0,0,0,.4); color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:0 40px}
a{color:var(--accent);text-underline-offset:3px}
.wrap{width:100%;max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:24px}
main.wrap{gap:24px!important}

/* Header */
header.top{position:sticky;top:0;z-index:10;padding:12px max(16px,env(safe-area-inset-left,0px)) 10px;
  background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:1.3rem;text-decoration:none;color:var(--ink);letter-spacing:-.01em}
.logo::before{content:"أ";display:grid;place-items:center;width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink);font-size:1.15rem;box-shadow:var(--shadow)}
.logo span{color:var(--gold)}
nav{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding-bottom:2px}
@media (max-width:900px){nav{mask-image:linear-gradient(to left,#000 90%,transparent);-webkit-mask-image:linear-gradient(to left,#000 90%,transparent)}}
nav::-webkit-scrollbar{display:none}
nav a{flex:none;font-weight:500;color:var(--muted);padding:6px 12px;border-radius:999px;text-decoration:none;font-size:.9rem;white-space:nowrap;transition:background .15s,color .15s}
nav a:hover{background:var(--surface-2);color:var(--ink)}
nav a[aria-current="page"]{background:var(--accent-soft);color:var(--accent);font-weight:600}

/* Type */
h1{font-weight:700;font-size:clamp(1.75rem,5vw,2.5rem);margin:0;line-height:1.35;letter-spacing:-.015em;text-wrap:balance}
h2{font-weight:700;font-size:1.25rem;margin:0;line-height:1.5;text-wrap:balance}
h3{font-size:1.05rem;margin:0}
.top{display:flex;flex-direction:column;gap:10px}
main > .top{padding-top:12px}
.lead{color:var(--muted);margin:0;max-width:62ch;font-size:1.05rem}

/* Panels & forms */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow)}
.panel h2{font-size:1.1rem;display:flex;align-items:center;gap:8px}
.panel h2::before{content:"";width:4px;height:1.1em;border-radius:4px;background:var(--accent)}
.help{margin:0;color:var(--muted);font-size:.9rem;background:var(--surface-2);border-radius:10px;padding:10px 14px}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
label{display:flex;flex-direction:column;gap:6px;font-size:.88rem;font-weight:500;color:var(--muted);min-width:0}
input,select,textarea{font:inherit;font-size:1rem;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;transition:border-color .15s,box-shadow .15s}
input:hover,select:hover,textarea:hover{border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
textarea{min-height:150px;resize:vertical}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* Results */
.result{background:linear-gradient(135deg,var(--accent-soft),var(--surface-2));border:1px solid color-mix(in srgb,var(--accent) 20%,var(--line));border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;gap:6px}
.result .big{font-size:clamp(1.35rem,4.5vw,1.75rem);font-weight:700;color:var(--accent);line-height:1.5}
.result .sub{color:var(--muted);font-size:.92rem}
.result .stats{margin-block:6px}

/* Buttons */
.btns{display:flex;gap:8px;flex-wrap:wrap}
.btn{font:inherit;font-weight:600;font-size:.92rem;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:8px 16px;border-radius:10px;cursor:pointer;text-decoration:none;transition:border-color .15s,background .15s,transform .1s}
.btn:hover{border-color:var(--accent);color:var(--accent)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{background:var(--accent-2);color:var(--accent-ink)}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;text-align:center}
.stat b{display:block;font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums;color:var(--ink);line-height:1.4}
.stat span{color:var(--muted);font-size:.82rem}
.num{font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}

/* Article */
.article{display:flex;flex-direction:column;gap:12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.article > *{max-width:70ch}
.article p{margin:0;color:color-mix(in srgb,var(--ink) 88%,var(--muted))}
.article h2:not(:first-child){margin-top:12px;padding-top:16px;border-top:1px solid var(--line)}
.article ul,.article ol{margin:0;padding-inline-start:1.4em;display:flex;flex-direction:column;gap:6px}
.article li::marker{color:var(--accent);font-weight:700}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:10px}
.faq > h2{margin-bottom:4px}
.faq details{border:1px solid var(--line);border-radius:12px;background:var(--surface);transition:box-shadow .15s}
.faq details[open]{box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:600;padding:14px 18px;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:var(--surface-2);color:var(--accent);font-weight:700;transition:transform .2s}
.faq details[open] summary::after{content:"−"}
.faq details p{margin:0;padding:0 18px 16px;color:var(--muted)}

/* Home */
.hero{background:linear-gradient(135deg,var(--hero-a,#0f766e) 0%,var(--hero-b,#115e59) 100%);color:#fff;border-radius:20px;padding:32px 28px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset-inline-start:-60px;bottom:-80px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.08)}
.hero h1{color:inherit}
.hero .lead{color:inherit;opacity:.9}
.hero .chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.hero .chips span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:4px 12px;font-size:.85rem}
.section-title{font-size:1.1rem;color:var(--muted);font-weight:600;margin:4px 0 -8px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.card{display:flex;flex-direction:column;gap:6px;padding:20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s,border-color .15s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--accent) 35%,var(--line))}
.card .ico{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);margin-bottom:6px}
.card .ico svg{width:22px;height:22px}
.card strong{font-size:1.08rem;font-weight:700}
.card span:not(.ico){color:var(--muted);font-size:.9rem;line-height:1.7}
.related{display:flex;gap:8px;flex-wrap:wrap}

footer{color:var(--muted);font-size:.85rem;text-align:center;border-top:1px solid var(--line);padding-top:20px;margin-top:8px}
footer a{color:var(--muted)}
@media (max-width:520px){.panel,.article{padding:18px}.hero{padding:24px 20px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}