:root{--primary:#2563eb;--secondary:#4f46e5;--text-dark:#1e293b;--text-light:#64748b;--bg-light:#f8fafc;--white:#ffffff;--shadow:0 4px 6px -1px rgb(0 0 0 / 0.1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Apercu',sans-serif;color:var(--text-dark);line-height:1.5;padding-top:80px}.container{max-width:1200px;margin:0 auto;padding:0 20px}header{background:var(--white);box-shadow:var(--shadow);position:fixed;top:0;left:0;right:0;z-index:1000}.navbar{display:flex;justify-content:space-between;align-items:center;height:80px}.logo{font-size:1.8rem;font-weight:700;text-decoration:none;color:var(--text-dark)}.logo span{color:var(--primary)}.nav-right{display:flex;align-items:center;gap:20px}.nav-links{display:flex;list-style:none;gap:30px}.nav-links a{text-decoration:none;color:var(--text-dark);font-weight:500;display:flex;align-items:center;gap:8px;transition:color 0.3s}.nav-links a:hover{color:var(--primary)}.has-submenu{position:relative}.submenu{position:absolute;top:100%;left:0;background:var(--white);min-width:220px;box-shadow:var(--shadow);border-radius:8px;padding:10px 0;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all 0.3s;z-index:100}.has-submenu:hover>.submenu{opacity:1;visibility:visible;transform:translateY(0)}.submenu .has-submenu{position:relative}.submenu .submenu{top:0;left:100%;margin-top:-10px}.submenu li{list-style:none}.submenu a{padding:10px 20px;white-space:nowrap}.submenu-icon{font-size:.8rem;margin-left:4px}.search-icon,.mobile-toggle{background:none;border:none;font-size:1.2rem;color:var(--text-dark);cursor:pointer;padding:8px}.mobile-toggle{display:none}.scroll-progress{position:absolute;bottom:0;left:0;height:3px;background:var(--primary);width:0%;transition:width 0.1s}.search-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgb(0 0 0 / .8);z-index:2000;display:none;align-items:center;justify-content:center}.search-modal.active{display:flex}.search-modal-content{background:var(--white);width:90%;max-width:600px;border-radius:12px;overflow:hidden}.search-modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid #e2e8f0}.close-search{background:none;border:none;font-size:1.2rem;cursor:pointer;color:var(--text-light)}.search-form{padding:20px}.search-input{width:100%;padding:15px;border:2px solid #e2e8f0;border-radius:8px;font-size:1rem;font-family:'Apercu',sans-serif}.search-results{padding:0 20px 20px;max-height:400px;overflow-y:auto}.search-result-item{padding:15px;border-bottom:1px solid #e2e8f0}.search-result-item:last-child{border-bottom:none}.search-result-item a{text-decoration:none;color:var(--text-dark)}.search-result-item h4{margin-bottom:5px;color:var(--primary)}footer{background:var(--text-dark);color:var(--white);padding:60px 0 20px}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px;margin-bottom:40px}.footer-column h3{margin-bottom:20px;font-size:1.2rem}.footer-links{list-style:none}.footer-links li{margin-bottom:10px}.footer-links a{color:#cbd5e1;text-decoration:none;transition:color 0.3s;display:flex;align-items:center;gap:8px}.footer-links a:hover{color:var(--white)}.social-links{display:flex;gap:15px;margin-top:20px}.social-links a{color:var(--white);font-size:1.2rem;transition:color 0.3s}.social-links a:hover{color:var(--primary)}.copyright{text-align:center;padding-top:20px;border-top:1px solid #334155;color:#94a3b8}.back-to-top{position:fixed;bottom:30px;right:30px;background:var(--primary);color:var(--white);width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;opacity:0;visibility:hidden;transition:all 0.3s;z-index:999}.back-to-top.show{opacity:1;visibility:visible}@media (max-width:768px){.nav-links{display:none;position:absolute;top:80px;left:0;right:0;background:var(--white);flex-direction:column;padding:20px;box-shadow:var(--shadow)}.nav-links.active{display:flex}.mobile-toggle{display:block}.submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding-left:20px;display:none}.submenu.active{display:block}.submenu .submenu{padding-left:20px}}