:root{--primary:#5d3fd3;--primary-dark:#39218d;--gold:#f5b942;--dark:#151320;--text:#292633;--muted:#716d7a;--bg:#f7f6fb;--white:#fff;--border:#e7e3ef;--success:#16835b;--danger:#b32929}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Cairo",sans-serif;color:var(--text);background:#fff;line-height:1.8}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 32px));margin:auto}.narrow{width:min(760px,calc(100% - 32px))}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800}.brand-mark{display:grid;place-items:center;width:40px;height:40px;background:var(--primary);color:#fff;border-radius:13px}.nav 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