:root{--primary:#087f5b;--dark:#064e3b;--green:#10b981;--orange:#f59e0b;--blue:#3b82f6;--purple:#8b5cf6;--light:#f6faf8;--text:#24332d;--muted:#6b7b74;--border:#e2ebe6;--white:#fff;--shadow:0 14px 35px rgba(10,70,50,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,"Noto Sans Bengali",sans-serif;color:var(--text);background:#fff;line-height:1.7}.container{width:min(1140px,92%);margin:auto}.topbar{background:var(--dark);color:#fff;font-size:14px}.topbar-inner,.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:8px 0}.site-header{background:#fff;box-shadow:0 3px 18px rgba(0,0,0,.07);position:sticky;top:0;z-index:20}.nav-wrap{padding:13px 0}.brand{display:flex;align-items:center;gap:12px}.custom-logo{max-height:58px;width:auto}.brand-text{text-decoration:none;color:var(--dark);display:flex;flex-direction:column}.brand-text small{font-size:11px}.primary-nav 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