*{margin:0;padding:0;box-sizing:border-box;font-family:Exo\ 2,sans-serif}:root{--primary-color:#13a4ec;--primary-dark:#0d8bc7;--text-dark:#1f2937;--text-light:#6b7280;--bg-light:#f9fafb;--white:#ffffff;--border-color:#e5e7eb;--shadow:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--transition:all 0.3s ease}body{font-family:Exo\ 2,sans-serif;color:var(--text-dark);line-height:1.6;background-color:var(--bg-light);overflow-x:hidden}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 1.5rem}.header{position:sticky;top:0;background-color:var(--white);box-shadow:var(--shadow);z-index:100;padding:1rem 0}.header .container{display:flex;align-items:center;justify-content:space-between}.logo-container{display:flex;align-items:center;gap:.75rem}.logo-text{font-size:1.5rem;font-weight:700;color:var(--text-dark)}.nav-menu{display:flex;gap:2rem}.nav-link{color:var(--text-light);text-decoration:none;font-weight:500;transition:var(--transition);position:relative}.nav-link:hover{color:var(--primary-color)}.nav-link:after{content:"";position:absolute;bottom:-5px;left:0;width:0;height:2px;background-color:var(--primary-color);transition:var(--transition)}.nav-link:hover:after{width:100%}.header-actions{display:flex;align-items:center;gap:1.5rem}.search-container{position:relative}.search-icon{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);width:1.25rem;height:1.25rem;color:var(--text-light)}.search-input{padding:.5rem 1rem .5rem 2.5rem;border:1px solid var(--border-color);border-radius:.375rem;font-size:.875rem;transition:var(--transition);width:200px;font-family:Exo\ 2,sans-serif}.search-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(19,164,236,.1)}.auth-buttons{display:flex;align-items:center;gap:1rem}.login-btn{color:var(--text-dark);text-decoration:none;font-weight:500;transition:var(--transition)}.login-btn:hover{color:var(--primary-color)}.signup-btn{background-color:var(--primary-color);color:var(--white);padding:.5rem 1rem;border-radius:.375rem;text-decoration:none;font-weight:600;transition:var(--transition)}.signup-btn:hover{background-color:var(--primary-dark);transform:translateY(-2px)}.mobile-menu-toggle{display:none;flex-direction:column;justify-content:space-between;width:24px;height:18px;background:transparent;border:none;cursor:pointer}.mobile-menu-toggle span{height:2px;width:100%;background-color:var(--text-dark);transition:var(--transition)}.hero{position:relative;height:80vh;min-height:500px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-background{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(rgba(0,0,0,.4),rgba(0,0,0,.7)),url(https://images.unsplash.com/photo-1518770660439-4636190af475?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1740&q=80) 50%/cover no-repeat;z-index:-1;transform:scale(1.05);transition:transform 10s ease}.hero:hover .hero-background{transform:scale(1.1)}.hero-content{text-align:center;color:var(--white);max-width:800px;padding:0 1.5rem;z-index:1}.hero-title{font-size:3rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem;font-family:Exo,sans-serif}.hero-description{font-size:1.25rem;margin-bottom:2rem;opacity:.9}.hero-cta,.hero-description{font-family:Exo\ 2,sans-serif}.hero-cta{background-color:var(--primary-color);color:var(--white);border:none;padding:1rem 2rem;font-size:1.125rem;font-weight:600;border-radius:.5rem;cursor:pointer;transition:var(--transition);transform:translateY(0)}.hero-cta:hover{background-color:var(--primary-dark);transform:translateY(-3px);box-shadow:0 10px 25px -5px rgba(19,164,236,.4)}.category-section,.featured-articles{padding:5rem 0;display:block}.section-title{font-size:2.25rem;font-weight:700;margin-bottom:3rem;text-align:center;position:relative;font-family:Exo,sans-serif;color:var(--text-dark)}.section-title:after{content:"";position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);width:60px;height:4px;background-color:var(--primary-color);border-radius:2px}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem}.article-card{background:var(--white);border-radius:.5rem;overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);opacity:0;transform:translateY(20px);animation:fadeInUp .6s ease forwards}.article-card:first-child{animation-delay:.1s}.article-card:nth-child(2){animation-delay:.2s}.article-card:nth-child(3){animation-delay:.3s}.article-card:nth-child(4){animation-delay:.4s}.article-card:hover{transform:translateY(-5px);box-shadow:0 10px 25px -5px rgba(0,0,0,.1)}.article-image{height:200px}.article-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.article-card:hover .article-image img{transform:scale(1.05)}.article-content{padding:1.5rem}.article-title{font-size:1.25rem;font-weight:600;margin-bottom:.75rem;line-height:1.4;font-family:Exo,sans-serif;color:var(--text-dark)}.article-excerpt{color:var(--text-light);margin-bottom:1rem;line-height:1.5}.article-excerpt,.article-link{font-size:.875rem;font-family:Exo\ 2,sans-serif}.article-link{color:var(--primary-color);text-decoration:none;font-weight:600;display:inline-flex;align-items:center;transition:var(--transition)}.article-link:hover{color:var(--primary-dark)}.article-link:after{content:"→";margin-left:.5rem;transition:var(--transition)}.article-link:hover:after{transform:translateX(3px)}.newsletter{background-color:var(--primary-color);color:var(--white);padding:4rem 0;display:block}.newsletter-content{text-align:center;max-width:600px;margin:0 auto}.newsletter-content h2{font-size:2rem;margin-bottom:1rem;font-family:Exo,sans-serif}.newsletter-content p{margin-bottom:2rem;opacity:.9;font-family:Exo\ 2,sans-serif}.newsletter-form{display:flex;gap:.5rem;max-width:450px;margin:0 auto}.newsletter-form input{flex:1;padding:.75rem 1rem;border:none;border-radius:.375rem;font-size:1rem;font-family:Exo\ 2,sans-serif}.newsletter-form input:focus{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.3)}.newsletter-form button{background-color:var(--text-dark);color:var(--white);border:none;padding:.75rem 1.5rem;border-radius:.375rem;font-weight:600;cursor:pointer;transition:var(--transition);font-family:Exo\ 2,sans-serif}.newsletter-form button:hover{background-color:#111827}.footer{background-color:var(--text-dark);color:var(--white);padding:4rem 0 2rem;display:block}.footer-content{display:grid;grid-template-columns:1fr 2fr;gap:3rem;margin-bottom:3rem}.footer-brand{max-width:300px}.footer-brand p{margin-top:1rem;opacity:.8;line-height:1.6;font-family:Exo\ 2,sans-serif}.company-credit{margin-top:1.5rem;font-size:.875rem;font-family:Exo\ 2,sans-serif}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.footer-column h3{font-size:1.125rem;font-weight:600;margin-bottom:1.5rem;position:relative;font-family:Exo,sans-serif}.footer-column h3:after{content:"";position:absolute;bottom:-8px;left:0;width:30px;height:2px;background-color:var(--primary-color)}.footer-column a{display:block;color:rgba(255,255,255,.7);text-decoration:none;margin-bottom:.75rem;transition:var(--transition);font-family:Exo\ 2,sans-serif}.footer-column a:hover{color:var(--white);transform:translateX(5px)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:2rem;text-align:center;font-size:.875rem;opacity:.7;font-family:Exo\ 2,sans-serif}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1024px){.hero-title{font-size:2.5rem}.footer-content{grid-template-columns:1fr 1.5fr}}@media (max-width:768px){.header .container{flex-wrap:wrap}.nav-menu{display:none;width:100%;order:3;margin-top:1rem;flex-direction:column;gap:1rem}.nav-menu.active{display:flex}.header-actions{margin-left:auto}.search-container{display:none}.mobile-menu-toggle{display:flex}.hero-title{font-size:2rem}.hero-description{font-size:1.125rem}.footer-content{grid-template-columns:1fr;gap:2rem}.footer-links{grid-template-columns:repeat(2,1fr)}.newsletter-form{flex-direction:column}}@media (max-width:640px){.articles-grid,.footer-links{grid-template-columns:1fr}.hero{height:70vh}.hero-title,.section-title{font-size:1.75rem}}@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}a:focus,button:focus,input:focus{outline-offset:2px}img[loading=lazy]{opacity:0;transition:opacity .3s}img[loading=lazy].loaded{opacity:1}.card-shine{position:absolute;top:0;left:0;right:0;bottom:0;border-radius:.5rem;pointer-events:none;z-index:2;transition:background .3s ease;overflow:hidden}.article-image{overflow:hidden;transition:transform .5s ease}.article-image img{transition:transform .7s cubic-bezier(.215,.61,.355,1)}.article-content{transition:transform .5s cubic-bezier(.215,.61,.355,1)}.article-link{transition:transform .4s cubic-bezier(.215,.61,.355,1)}@keyframes shake{0%,to{transform:translateX(0)}20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}a:focus,button:focus,input:focus{outline:2px solid var(--primary-color);outline-offset:3px;box-shadow:0 0 0 4px rgba(19,164,236,.2)}a,button,input{transition:all .3s ease}.article-card{position:relative;transition:transform .5s cubic-bezier(.215,.61,.355,1),box-shadow .5s cubic-bezier(.215,.61,.355,1);transform-style:preserve-3d;perspective:1000px}.hero-content{opacity:0;transform:translateY(20px);animation:fadeInUp 1s ease .5s forwards}.touch-active .mobile-menu-toggle:focus,.touch-active a:focus,.touch-active button:focus,.touch-active input:focus,.using-touch .mobile-menu-toggle:focus,.using-touch a:focus,.using-touch button:focus,.using-touch input:focus{outline:none!important;box-shadow:none!important}.user-profile{gap:.75rem;cursor:pointer}.user-avatar{border:2px solid var(--primary-color)}.user-name{font-weight:600;color:var(--text-dark);font-family:Exo\ 2,sans-serif}.user-dropdown{position:absolute;top:100%;right:0;background:var(--white);border-radius:.5rem;box-shadow:0 10px 25px rgba(0,0,0,.15);padding:.5rem;min-width:200px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .3s ease;z-index:1000}.user-profile:hover .user-dropdown{opacity:1;visibility:visible;transform:translateY(0)}.user-dropdown a,.user-dropdown button{display:block;width:100%;padding:.75rem 1rem;text-align:left;background:none;border:none;color:var(--text-dark);text-decoration:none;border-radius:.25rem;transition:all .3s ease;font-family:Exo\ 2,sans-serif;cursor:pointer;font-size:16px}.user-dropdown a:hover,.user-dropdown button:hover{background-color:var(--bg-light);color:var(--primary-color)}.logout-btn{color:#ef4444!important;border-top:1px solid var(--border-color)!important;margin-top:.5rem;padding-top:1rem!important}.logout-btn:hover{background-color:#fef2f2!important}@media (max-width:768px){.user-name{display:none}.user-dropdown{position:fixed;top:auto;bottom:0;left:0;right:0;width:100%;border-radius:1rem 1rem 0 0;transform:translateY(100%)}.user-profile:hover .user-dropdown{transform:translateY(0)}}.article-card,.category-section,.featured-articles,.newsletter{opacity:1!important;transform:none!important;animation:none!important}.article-card.animate-in{animation:fadeInUp .6s ease forwards}.article-card:first-child.animate-in{animation-delay:.1s}.article-card:nth-child(2).animate-in{animation-delay:.2s}.article-card:nth-child(3).animate-in{animation-delay:.3s}.article-card:nth-child(4).animate-in{animation-delay:.4s}.section-title.animate-in{animation:fadeInUp .8s ease forwards}.user-avatar-container{position:relative;display:inline-block}.user-avatar{object-fit:cover}.letter-avatar,.user-avatar{width:40px;height:40px;border-radius:50%;border:2px solid #e5e7eb}.letter-avatar{display:none;background:linear-gradient(135deg,#667eea,#764ba2);color:white;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:18px}.user-name{font-weight:500;color:#374151;margin-left:.5rem}.user-profile{display:flex;align-items:center;position:relative}