:root{--bg:#07111f;--panel:#0d1b2e;--line:#203651;--text:#eef5ff;--muted:#9ab0ca;--brand:#ffb31a;--green:#31d7a0}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(160deg,#06101d,#0b1830 52%,#07111f);color:var(--text);font-family:Inter,"Vazirmatn",system-ui,-apple-system,sans-serif;line-height:1.75}a{color:inherit}.wrap{width:min(1120px,calc(100% - 32px));margin:auto}.top{display:flex;justify-content:space-between;align-items:center;padding:22px 0}.brand{font-size:22px;font-weight:900;text-decoration:none}.brand b{color:var(--brand)}.nav{display:flex;gap:16px;flex-wrap:wrap}.nav a{color:var(--muted);text-decoration:none;font-size:14px}.hero{padding:72px 0 48px}.eyebrow{color:var(--green);font-size:13px;font-weight:800}.hero h1{font-size:clamp(36px,6vw,68px);line-height:1.12;max-width:900px;margin:10px 0 18px}.hero p{font-size:18px;color:var(--muted);max-width:800px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;padding:12px 18px;border-radius:12px;text-decoration:none;font-weight:800;border:1px solid var(--line)}.btn.primary{background:var(--brand);color:#111;border-color:transparent}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:28px 0}.card,.section{background:rgba(13,27,46,.9);border:1px solid var(--line);border-radius:20px;padding:24px}.card h2,.card h3,.section h2{margin-top:0}.card p,.section p,.section li{color:var(--muted)}.section{margin:18px 0}.section h2{font-size:28px}.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}.faq details{background:rgba(13,27,46,.9);border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin:10px 0}.faq summary{cursor:pointer;font-weight:800}.faq p{color:var(--muted)}footer{padding:42px 0 60px;color:var(--muted);font-size:13px}.lang{display:flex;gap:8px}.lang a{border:1px solid var(--line);padding:6px 10px;border-radius:9px;text-decoration:none}.breadcrumbs{font-size:13px;color:var(--muted);padding-top:14px}.breadcrumbs a{color:var(--muted)}.note{border-inline-start:4px solid var(--brand);padding:12px 16px;background:rgba(255,179,26,.06);border-radius:10px;color:var(--muted)}@media(max-width:760px){.grid,.two{grid-template-columns:1fr}.top{align-items:flex-start;gap:18px;flex-direction:column}.hero{padding-top:42px}.nav{gap:10px}.hero p{font-size:16px}}
/* Readable long routes and usable keyboard navigation on small screens. */
.hero h1{line-height:1.3;overflow-wrap:anywhere}.top>*{min-width:0}.lang{flex-wrap:wrap}.lang a{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center}a:focus-visible,summary:focus-visible{outline:3px solid var(--brand);outline-offset:4px}a[aria-current="page"]{border-color:var(--brand)}.section a,.card a,footer a{overflow-wrap:anywhere}body[dir="rtl"],html[lang="fa"] body{font-family:Tahoma,"Vazirmatn",system-ui,sans-serif}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.table-scroll{overflow-x:auto;max-width:100%;margin:18px 0}table{width:100%;border-collapse:collapse;min-width:520px;text-align:start}th,td{padding:14px;border:1px solid var(--line);vertical-align:top}th{background:rgba(49,215,160,.07)}td{color:var(--muted)}.source,.review-date{font-size:13px;color:var(--muted)}.section{scroll-margin-top:20px}.section details{padding:12px 0;border-bottom:1px solid var(--line)}.section summary{cursor:pointer;font-weight:700}

.article-illustration{margin:24px 0}.article-illustration img{display:block;max-width:100%;height:auto;border-radius:18px}.article-illustration figcaption{font-size:13px;line-height:1.8;color:var(--muted,#8498b5);margin-top:8px}