:root{--primary-color:#2c3e50;--secondary-color:#3498db;--accent-color:#e74c3c;--light-color:#f9f9f9;--dark-color:#1a1a1a;--gray-color:#ecf0f1;--text-color:#333333;--text-light:#777777;--border-radius:6px;--box-shadow:0 5px 15px rgba(0, 0, 0, 0.08);--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'Apercu',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;color:var(--text-color);background-color:var(--light-color);overflow-x:hidden;padding-top:80px}h1,h2,h3,h4,h5,h6{font-family:'Apercu',-apple-system,BlinkMacSystemFont,sans-serif;font-weight:700;line-height:1.2;margin-bottom:1rem;color:var(--primary-color)}h1{font-size:3.5rem;margin-bottom:1.5rem}h2{font-size:2.5rem;position:relative;display:inline-block;margin-bottom:2rem}h2:after{content:'';position:absolute;bottom:-10px;left:0;width:60px;height:4px;background-color:var(--secondary-color)}h3{font-size:1.8rem}p{margin-bottom:1.5rem;color:var(--text-color);font-size:1.1rem}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.container-narrow{width:100%;max-width:800px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 28px;background-color:var(--secondary-color);color:#fff;border:none;border-radius:var(--border-radius);font-family:'Apercu',sans-serif;font-weight:600;font-size:1rem;cursor:pointer;transition:var(--transition);text-decoration:none}.btn:hover{background-color:var(--primary-color);transform:translateY(-3px);box-shadow:var(--box-shadow)}.btn-secondary{background-color:#fff0;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background-color:var(--primary-color);color:#fff}.btn-small{padding:6px 12px;font-size:.9rem}.btn-danger{background-color:var(--accent-color)}.btn-danger:hover{background-color:#c0392b}header{position:fixed;top:0;left:0;width:100%;background-color:#fff;box-shadow:0 2px 10px rgb(0 0 0 / .1);z-index:1000;padding:15px 0;transition:var(--transition)}.scroll-progress{position:absolute;bottom:-2px;left:0;width:0%;height:2px;background-color:#3498db;transition:width 0.1s ease;z-index:1001}.navbar{display:flex;justify-content:space-between;align-items:center;position:relative}.logo{font-size:1.8rem;font-weight:700;color:var(--primary-color);text-decoration:none}.logo span{color:var(--secondary-color)}.nav-right{display:flex;align-items:center}.nav-links{display:flex;list-style:none;margin-right:20px}.nav-links li{margin-left:30px;position:relative}.nav-links a{text-decoration:none;color:var(--primary-color);font-weight:500;font-size:1rem;transition:var(--transition);display:flex;align-items:center;gap:8px}.nav-links a:hover{color:var(--secondary-color)}.nav-links a i{font-size:1rem;width:1.2em;text-align:center}.has-submenu{position:relative}.has-submenu>a{display:flex;align-items:center;gap:8px;white-space:nowrap}.submenu-icon{font-size:.8rem;transition:transform 0.4s cubic-bezier(.34,1.56,.64,1);display:inline-block;line-height:1;vertical-align:middle;margin-left:2px;transform-origin:center}.has-submenu:hover>.submenu-icon{transform:rotate(180deg)}.nav-links a:after,.has-submenu>a:after,.submenu a:after,.submenu .has-submenu>a:after,.nav-links a:before,.has-submenu>a:before,.submenu a:before,.submenu .has-submenu>a:before{display:none!important;content:none!important;background:none!important;height:0!important;width:0!important;border:none!important;box-shadow:none!important;text-decoration:none!important;opacity:0!important;visibility:hidden!important;border-bottom:none!important;border-top:none!important;border-left:none!important;border-right:none!important}a,a:link,a:visited,a:hover,a:active,a:focus{text-decoration:none!important;border-bottom:none!important;outline:none!important}.submenu{position:absolute;top:100%;left:0;background-color:#fff;min-width:220px;box-shadow:var(--box-shadow);border-radius:var(--border-radius);padding:10px 0;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity 0.3s ease,visibility 0.3s ease,transform 0.3s ease;z-index:100;list-style:none;margin-top:10px}.has-submenu:hover>.submenu{opacity:1;visibility:visible;transform:translateY(0)}.submenu .has-submenu{position:relative}.submenu .has-submenu>a{padding:10px 20px;display:flex;align-items:center;gap:12px;white-space:nowrap;position:relative}.submenu .has-submenu>a i:first-child{width:20px;text-align:center}.submenu .has-submenu>a i:last-child{position:absolute;right:15px;font-size:.7rem;color:var(--text-light);transition:transform 0.3s ease}.submenu .has-submenu:hover>a i:last-child{transform:translateX(3px)}.submenu .submenu{top:0;left:100%;margin-top:-10px;margin-left:2px}.submenu .has-submenu:hover>.submenu{opacity:1;visibility:visible;transform:translateY(0)}.submenu li{margin:0;padding:0}.submenu a{padding:10px 20px;display:flex;align-items:center;gap:12px;color:var(--text-color);transition:var(--transition);white-space:nowrap}.submenu a:hover{background-color:var(--gray-color);color:var(--secondary-color);padding-left:25px}.submenu a i{width:20px;text-align:center;color:var(--secondary-color);font-size:1rem}@media (max-width:768px){body{padding-top:70px}.has-submenu{position:relative;width:100%}.has-submenu>a{display:flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;width:100%}.has-submenu>a .submenu-icon{margin-left:5px;font-size:.8rem;display:inline-block;transition:transform 0.4s cubic-bezier(.34,1.56,.64,1);vertical-align:middle}.has-submenu.active>a .submenu-icon{transform:rotate(180deg)}.submenu .has-submenu>a i:last-child{margin-left:4px;font-size:.7rem;transition:transform 0.3s ease;position:static}.submenu .has-submenu.active>a i:last-child{transform:rotate(90deg)}.submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0;margin-top:5px;background-color:#fff0;display:none;width:100%}.has-submenu.active>.submenu{display:block}.submenu .has-submenu.active>.submenu{display:block;margin-left:0;padding-left:15px}.nav-links a,.submenu a{justify-content:center!important;text-align:center;padding:12px 15px;width:100%;display:flex;align-items:center;gap:8px}.submenu a{color:var(--text-light);white-space:normal;font-size:.95rem}.submenu a i{width:20px;text-align:center;font-size:1rem}.has-submenu>.submenu a,.submenu .has-submenu>a{justify-content:center!important;display:flex;align-items:center;gap:8px}.submenu a:hover{background-color:rgb(52 152 219 / .1);color:var(--secondary-color)}.submenu a:after,.has-submenu>a:after,.nav-links a:after,.submenu a:before,.has-submenu>a:before,.nav-links a:before{display:none!important;content:none!important;background:none!important;height:0!important;width:0!important;border:none!important}.nav-links a,.submenu a,.has-submenu>a{text-decoration:none!important;border-bottom:none!important;border:none!important;outline:none!important}}.search-icon{font-size:1.2rem;color:var(--primary-color);cursor:pointer;transition:var(--transition);background:none;border:none;padding:8px;display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%}.search-icon:hover{color:var(--secondary-color);background-color:rgb(52 152 219 / .1)}.mobile-toggle{font-size:1.5rem;cursor:pointer;color:var(--primary-color);background:none;border:none;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.mobile-toggle:hover{background-color:rgb(0 0 0 / .05)}.search-modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgb(0 0 0 / .9);z-index:2000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:var(--transition)}.search-modal.active{opacity:1;visibility:visible}.search-modal-content{width:90%;max-width:700px;padding:40px;background-color:#fff;border-radius:var(--border-radius);transform:translateY(-50px);transition:var(--transition);opacity:0}.search-modal.active .search-modal-content{transform:translateY(0);opacity:1}.search-modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.search-modal-header h3{margin:0;color:var(--primary-color)}.close-search{font-size:1.8rem;color:var(--text-light);cursor:pointer;background:none;border:none;transition:var(--transition)}.close-search:hover{color:var(--accent-color)}.search-form{margin-bottom:30px}.search-input{width:100%;padding:15px 20px;font-size:1.2rem;border:2px solid var(--gray-color);border-radius:var(--border-radius);font-family:'Apercu',sans-serif;transition:var(--transition)}.search-input:focus{outline:none;border-color:var(--secondary-color)}.search-results{max-height:300px;overflow-y:auto;margin-top:20px}.search-result-item{padding:15px;border-bottom:1px solid var(--gray-color);transition:var(--transition);text-decoration:none;display:block;color:inherit;cursor:pointer}.search-result-item:hover{background-color:var(--gray-color);padding-left:20px}.search-result-item h4{margin-bottom:5px;color:var(--primary-color)}.search-result-item p{margin:0;font-size:.95rem;color:var(--text-light)}.no-results{text-align:center;padding:20px;color:var(--text-light)}.back-to-top{position:fixed;bottom:30px;right:30px;width:50px;height:50px;background-color:var(--secondary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:var(--box-shadow);transition:var(--transition);opacity:0;visibility:hidden;z-index:999}.back-to-top.visible{opacity:1;visibility:visible}@media (max-width:992px){.nav-links li{margin-left:20px}}@media (max-width:768px){.mobile-toggle{display:flex}.nav-links{position:fixed;top:70px;left:0;width:100%;background-color:#fff;flex-direction:column;align-items:center;padding:20px;box-shadow:0 5px 10px rgb(0 0 0 / .1);transform:translateY(-100%);opacity:0;visibility:hidden;transition:var(--transition);margin-right:0;max-height:calc(100vh - 70px);overflow-y:auto}.nav-links.active{transform:translateY(0);opacity:1;visibility:visible}.nav-links li{margin:10px 0;width:100%;text-align:center}.nav-links a{padding:8px 0;width:100%;justify-content:center}}@media (min-width:769px){.mobile-toggle{display:none}.search-icon{display:flex}}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:40px}.footer-links{list-style:none}.footer-links a{color:rgb(255 255 255 / .7);text-decoration:none}.copyright{text-align:center;padding-top:40px;border-top:1px solid rgb(255 255 255 / .1);color:rgb(255 255 255 / .5)}main{padding-top:140px}