:root{--primary:#2563eb;--primary-dark:#1d4ed8;--text:#172033;--muted:#64748b;--bg:#f5f7fb;--surface:#fff;--border:#e5e7eb;--code:#f1f5f9}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Vazirmatn,Tahoma,sans-serif;line-height:2;direction:rtl}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.header-inner{max-width:1280px;margin:auto;padding:12px 28px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{font-weight:800;color:var(--primary);text-decoration:none;white-space:nowrap}nav{display:flex;flex-wrap:wrap;gap:6px}nav a{color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:7px;font-size:.9rem}nav a:hover,nav a.active{background:#eff6ff;color:var(--primary)}.page{max-width:1180px;margin:40px auto;padding:0 25px}.page-title{margin-bottom:25px;padding:30px 35px;background:linear-gradient(135deg,#eff6ff,#fff);border:1px solid #dbeafe;border-radius:18px}.eyebrow,.card-tag{font-size:.72rem;letter-spacing:1px;font-weight:800;color:var(--primary);direction:ltr;display:block}.page-title h1{margin:6px 0 0;font-size:1.9rem}.doc-content{background:#fff;padding:45px 55px;border:1px solid var(--border);border-radius:18px;box-shadow:0 8px 30px rgba(15,23,42,.05)}.doc-content h1{font-size:2rem}.doc-content h2{margin-top:55px;padding-bottom:10px;border-bottom:2px solid #e8eef9;color:#16213a}.doc-content h3{margin-top:32px}.doc-content p{text-align:justify}.doc-content hr{border:0;border-top:1px solid var(--border);margin:42px 0}.doc-content ul,.doc-content ol{padding-right:28px}.doc-content li{margin:10px 0}.doc-content table{width:100%;border-collapse:collapse;margin:24px 0;display:block;overflow-x:auto}.doc-content th,.doc-content td{padding:12px 14px;border:1px solid var(--border);text-align:right;vertical-align:top}.doc-content th{background:#eff6ff;color:#1e3a8a;font-weight:700}.doc-content tr:nth-child(even){background:#fafcff}.doc-content code{font-family:Consolas,monospace;direction:ltr;unicode-bidi:embed;background:var(--code);padding:2px 5px;border-radius:4px;color:#334155}.doc-content pre{direction:ltr;text-align:left;overflow:auto;background:#0f172a;color:#e2e8f0;padding:18px;border-radius:10px}.doc-content pre code{background:transparent;color:inherit}.mermaid{direction:ltr;text-align:center;margin:35px 0;padding:15px;overflow:auto}.hub{max-width:1180px;margin:0 auto;padding:55px 25px}.hero{text-align:center;padding:55px 30px 45px}.hero h1{font-size:2.7rem;margin:8px 0 14px}.hero p{max-width:720px;margin:auto;color:var(--muted);font-size:1.1rem}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.doc-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:30px;text-decoration:none;color:inherit;transition:.2s box-shadow,.2s transform}.doc-card:hover{transform:translateY(-5px);box-shadow:0 15px 35px rgba(15,23,42,.1);border-color:#bfdbfe}.card-icon{font-size:2rem;color:var(--primary);margin-bottom:10px}.doc-card h2{margin:6px 0 12px;font-size:1.35rem}.doc-card p{color:var(--muted);font-size:.95rem}.go{display:block;color:var(--primary);font-weight:700;margin-top:20px}.presentation-note{margin-top:45px;background:#0f172a;color:#fff;padding:32px;border-radius:18px}.presentation-note h2{margin-top:0}.presentation-note p{color:#cbd5e1}.flow{display:flex;align-items:center;gap:15px;direction:ltr}.flow div{padding:10px 18px;background:#1e293b;border-radius:8px;font-weight:700}.flow span{color:#60a5fa;font-size:1.4rem}footer{text-align:center;color:#94a3b8;padding:35px 20px;font-size:.85rem}@media(max-width:900px){.cards{grid-template-columns:1fr}.header-inner{flex-direction:column;align-items:flex-start}.doc-content{padding:28px 20px}.hero h1{font-size:2rem}}@media(max-width:600px){.page,.hub{padding:20px 12px;margin:15px auto}.doc-content{border-radius:10px}.page-title{padding:22px}.doc-content table{font-size:.82rem}.flow{flex-wrap:wrap}.hero{padding:35px 10px}}

/* Documentation portal navigation additions */
.top-nav .active {
  color: var(--primary, #2563eb);
  font-weight: 700;
}
.nav-separator {
  width: 1px;
  height: 24px;
  background: rgba(100,116,139,.25);
  margin: 0 4px;
}
@media (max-width: 900px) {
  .nav-separator { display: none; }
}