:root{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#ffffff1a}::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#ffffff80}.modal-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:var(--card-bg);border-radius:16px;max-width:90%;max-height:90vh;overflow-y:auto;position:relative;animation:slideUp .3s ease-out;box-shadow:0 20px 60px #0000004d}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.auth-modal{width:100%;max-width:450px;padding:2.5rem}.modal-close{position:absolute;top:1rem;right:1rem;background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:.5rem;border-radius:8px;transition:all .2s;display:flex;align-items:center;justify-content:center}.modal-close:hover{background:var(--hover-bg);color:var(--text-primary)}.auth-form-container{width:100%}.auth-form-header{text-align:center;margin-bottom:2rem}.auth-form-header h2{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:0 0 .5rem}.auth-form-header p{color:var(--text-secondary);margin:0;font-size:.95rem}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.9rem;font-weight:600;color:var(--text-primary)}.form-group .required{color:var(--error-color)}.form-group input{padding:.875rem 1rem;border:2px solid var(--border-color);border-radius:8px;font-size:.95rem;background:var(--input-bg);color:var(--text-primary);transition:all .2s}.form-group input:focus{outline:none;border-color:var(--primary-color);background:var(--card-bg)}.form-group input:disabled{opacity:.6;cursor:not-allowed}.form-hint{font-size:.85rem;color:var(--text-secondary);margin-top:-.25rem}.btn-block{width:100%;margin-top:.5rem}.btn-primary{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;padding:.875rem 1.5rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center;gap:.5rem}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #3b82f666}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite}.auth-error,.auth-success{padding:1rem;border-radius:8px;font-size:.9rem;display:flex;align-items:center;gap:.75rem;animation:slideDown .3s ease-out}.auth-error{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:#ef4444}.auth-success{background:#10b9811a;border:1px solid rgba(16,185,129,.3);color:#10b981}.auth-footer{margin-top:1.5rem;text-align:center;padding-top:1.5rem;border-top:1px solid var(--border-color)}.auth-footer p{color:var(--text-secondary);font-size:.9rem;margin:0}.link-button{background:none;border:none;color:var(--primary-color);font-weight:600;cursor:pointer;padding:0;transition:color .2s}.link-button:hover:not(:disabled){color:var(--secondary-color);text-decoration:underline}.link-button:disabled{opacity:.6;cursor:not-allowed}@media (max-width: 640px){.auth-modal{padding:2rem 1.5rem}.auth-form-header h2{font-size:1.5rem}.modal-close{top:.75rem;right:.75rem}}:root{--input-bg: #f9fafb;--hover-bg: #f3f4f6;--error-color: #ef4444}@media (prefers-color-scheme: dark){:root{--input-bg: #1f2937;--hover-bg: #374151}}:root{--primary-color: #3b82f6;--primary-dark: #2563eb;--secondary-color: #8b5cf6;--accent-color: #10b981;--danger-color: #ef4444;--warning-color: #f59e0b;--text-primary: #1f2937;--text-secondary: #6b7280;--text-light: #9ca3af;--bg-primary: #ffffff;--bg-secondary: #f9fafb;--bg-tertiary: #f3f4f6;--border-color: #e5e7eb;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-primary);background-color:var(--bg-secondary);line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.navbar{background:var(--bg-primary);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}.nav-container{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem}.logo{display:flex;align-items:center;gap:.5rem;text-decoration:none;color:var(--text-primary);font-size:1.5rem;font-weight:700;transition:var(--transition)}.logo-icon{font-size:1.75rem}.logo:hover{color:var(--primary-color);transform:translateY(-2px)}.mobile-menu-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-primary)}.nav-links{display:flex;gap:2rem;align-items:center}.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:var(--transition);position:relative;padding:.5rem 0}.nav-links a:hover,.nav-links a.active{color:var(--primary-color)}.nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--primary-color)}@media (max-width: 768px){.mobile-menu-toggle{display:block}.nav-links{position:absolute;top:100%;left:0;right:0;background:var(--bg-primary);flex-direction:column;padding:1rem;box-shadow:var(--shadow-md);transform:translateY(-100%);opacity:0;pointer-events:none;transition:var(--transition)}.nav-links.open{transform:translateY(0);opacity:1;pointer-events:all}.nav-links a{width:100%;padding:.75rem;border-radius:var(--radius-md)}.nav-links a:hover{background:var(--bg-secondary)}}.nav-auth{display:flex;align-items:center;gap:1rem;margin-left:auto}.btn-text{background:none;border:none;color:var(--text-secondary);font-weight:500;padding:.5rem 1rem;cursor:pointer;transition:var(--transition);border-radius:var(--radius-md)}.btn-text:hover{color:var(--primary-color);background:var(--bg-secondary)}.btn-primary-sm{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none;padding:.5rem 1.25rem;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:var(--transition)}.btn-primary-sm:hover{transform:translateY(-2px);box-shadow:0 4px 12px #3b82f64d}.user-menu-wrapper{position:relative}.user-menu-trigger{background:none;border:none;cursor:pointer;padding:0}.user-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:.9rem;overflow:hidden;transition:var(--transition)}.user-avatar:hover{transform:scale(1.05);box-shadow:0 4px 12px #3b82f64d}.user-avatar img{width:100%;height:100%;object-fit:cover}.user-menu-dropdown{position:absolute;top:calc(100% + .5rem);right:0;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);min-width:200px;padding:.5rem;animation:slideDown .2s ease-out;z-index:1000}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.user-menu-header{padding:.75rem}.user-name{font-weight:600;color:var(--text-primary);font-size:.95rem;margin:0 0 .25rem}.user-email{color:var(--text-secondary);font-size:.85rem;margin:0}.user-menu-divider{height:1px;background:var(--border-color);margin:.5rem 0}.user-menu-item{width:100%;background:none;border:none;color:var(--text-secondary);padding:.75rem;text-align:left;cursor:pointer;border-radius:var(--radius-md);font-weight:500;transition:var(--transition)}.user-menu-item:hover{background:var(--bg-secondary);color:var(--danger-color)}@media (max-width: 768px){.nav-auth{width:100%;margin-left:0;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border-color)}.user-menu-dropdown{position:static;margin-top:.5rem;animation:none}}.hero{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:#fff;padding:4rem 0;text-align:center}.hero-content{max-width:800px;margin:0 auto;padding:0 1.5rem}.hero h1{font-size:3rem;font-weight:800;margin-bottom:1rem;line-height:1.2}.hero-subtitle{font-size:1.5rem;font-weight:600;margin-bottom:1rem;opacity:.95}.hero-description{font-size:1.125rem;opacity:.9;line-height:1.7}@media (max-width: 768px){.hero h1{font-size:2rem}.hero-subtitle{font-size:1.25rem}}.category-filter{background:var(--bg-primary);padding:2rem 0;border-bottom:1px solid var(--border-color)}.category-filter h2{font-size:1.5rem;margin-bottom:1.5rem;color:var(--text-primary)}.category-buttons{display:flex;flex-wrap:wrap;gap:.75rem}.category-buttons button{padding:.625rem 1.25rem;border:2px solid var(--border-color);background:var(--bg-primary);color:var(--text-secondary);border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:var(--transition);font-size:.95rem}.category-buttons button:hover{border-color:var(--primary-color);color:var(--primary-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.category-buttons button.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.articles-section{padding:3rem 0}.articles-section h2{font-size:2rem;margin-bottom:2rem;color:var(--text-primary)}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:2rem}.article-card{background:var(--bg-primary);border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-md);transition:var(--transition);display:flex;flex-direction:column}.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.article-image{width:100%;height:200px;overflow:hidden;background:var(--bg-tertiary)}.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;flex:1;display:flex;flex-direction:column}.article-meta{display:flex;gap:.75rem;margin-bottom:.75rem;flex-wrap:wrap}.category,.source{padding:.25rem .75rem;border-radius:var(--radius-md);font-size:.875rem;font-weight:600}.category{background:var(--primary-color);color:#fff}.source{background:var(--bg-tertiary);color:var(--text-secondary)}.article-content h3{font-size:1.25rem;margin-bottom:.75rem;color:var(--text-primary);line-height:1.4}.article-description{color:var(--text-secondary);margin-bottom:1rem;flex:1;line-height:1.6}.article-footer{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;border-top:1px solid var(--border-color)}.date{color:var(--text-light);font-size:.875rem}.read-more{color:var(--primary-color);font-weight:600;text-decoration:none;transition:var(--transition)}.read-more:hover{color:var(--primary-dark);transform:translate(4px)}.loading,.error-message,.no-articles{text-align:center;padding:3rem 1.5rem}.spinner{width:48px;height:48px;border:4px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{to{transform:rotate(360deg)}}.error-message{color:var(--danger-color)}.error-message button{margin-top:1rem;padding:.75rem 1.5rem;background:var(--primary-color);color:#fff;border:none;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:var(--transition)}.error-message button:hover{background:var(--primary-dark);transform:translateY(-2px)}.features-section{background:var(--bg-primary);padding:4rem 0}.features-section h2{font-size:2rem;margin-bottom:3rem;text-align:center;color:var(--text-primary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem}.feature-card{padding:2rem;background:var(--bg-secondary);border-radius:var(--radius-xl);text-align:center;transition:var(--transition)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{font-size:1.25rem;margin-bottom:.75rem;color:var(--text-primary)}.feature-card p{color:var(--text-secondary);line-height:1.6}.page-hero{background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%);color:#fff;padding:3rem 0;text-align:center}.page-hero h1{font-size:2.5rem;margin-bottom:.75rem}.page-hero .subtitle{font-size:1.25rem;opacity:.9}.about-content{padding:3rem 0}.content-section{margin-bottom:3rem}.content-section h2{font-size:2rem;margin-bottom:1.5rem;color:var(--text-primary)}.content-section p{color:var(--text-secondary);line-height:1.8;font-size:1.125rem}.offerings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-top:2rem}.offering{background:var(--bg-primary);padding:2rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-md)}.offering h3{font-size:1.5rem;margin-bottom:1rem;color:var(--text-primary)}.offering ul{list-style:none}.offering li{color:var(--text-secondary);padding:.5rem 0 .5rem 1.5rem;position:relative}.offering li:before{content:"✓";position:absolute;left:0;color:var(--accent-color);font-weight:700}.tech-stack{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-top:2rem}.stack-category{background:var(--bg-primary);padding:1.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border-left:4px solid var(--primary-color)}.stack-category h4{color:var(--primary-color);margin-bottom:.5rem;font-size:1.125rem}.stack-category p{color:var(--text-secondary);font-size:.95rem}.cta-section{text-align:center;background:var(--bg-primary);padding:3rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.cta-buttons{display:flex;gap:1rem;justify-content:center;margin-top:2rem;flex-wrap:wrap}.contact-content{padding:3rem 0}.contact-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:3rem;align-items:start}@media (max-width: 968px){.contact-grid{grid-template-columns:1fr}}.contact-info h2,.contact-form-container h2{font-size:1.75rem;margin-bottom:1rem;color:var(--text-primary)}.contact-info p{color:var(--text-secondary);line-height:1.6;margin-bottom:2rem}.contact-methods{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}.contact-method{display:flex;gap:1rem;padding:1rem;background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.method-icon{font-size:2rem}.method-details h3{font-size:1.125rem;color:var(--text-primary);margin-bottom:.25rem}.method-details p{color:var(--text-secondary);margin:0}.social-links h3{font-size:1.125rem;margin-bottom:1rem;color:var(--text-primary)}.social-icons{display:flex;gap:1rem}.social-icons a{font-size:2rem;text-decoration:none;transition:var(--transition)}.social-icons a:hover{transform:translateY(-4px)}.contact-form-container{background:var(--bg-primary);padding:2rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}.success-message{background:#d1fae5;color:#065f46;padding:1rem;border-radius:var(--radius-md);margin-bottom:1.5rem;text-align:center;font-weight:600}.contact-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column}.form-group label{font-weight:600;margin-bottom:.5rem;color:var(--text-primary)}.form-group input,.form-group textarea{padding:.75rem 1rem;border:2px solid var(--border-color);border-radius:var(--radius-md);font-size:1rem;font-family:inherit;transition:var(--transition)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #3b82f61a}.form-group textarea{resize:vertical;min-height:120px}.btn{padding:.75rem 1.5rem;border-radius:var(--radius-md);font-weight:600;text-decoration:none;display:inline-block;cursor:pointer;border:none;transition:var(--transition);font-size:1rem}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-tertiary);color:var(--text-primary);border:2px solid var(--border-color)}.btn-secondary:hover{background:var(--bg-secondary);border-color:var(--primary-color);color:var(--primary-color)}.footer{background:var(--text-primary);color:#fff;padding:3rem 0 1.5rem;margin-top:4rem}.footer-container{max-width:1200px;margin:0 auto;padding:0 1.5rem}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem}@media (max-width: 968px){.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 568px){.footer-grid{grid-template-columns:1fr}}.footer-section h3,.footer-section h4{margin-bottom:1rem;color:#fff}.footer-section p{color:#fffc;line-height:1.6}.footer-section ul{list-style:none}.footer-section ul li{margin-bottom:.5rem}.footer-section a{color:#fffc;text-decoration:none;transition:var(--transition);display:block;padding:.25rem 0}.footer-section a:hover{color:#fff;transform:translate(4px)}.footer-section .social-links{display:flex;flex-direction:column;gap:.5rem}.footer-section .social-links a{display:flex;align-items:center;gap:.5rem}.contact-info a{color:#ffffffe6}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:1.5rem;text-align:center;color:#ffffffb3}.footer-credits{margin-top:.5rem;font-size:.875rem;color:#fff9}@media (max-width: 768px){.hero{padding:3rem 0}.articles-grid,.features-grid{grid-template-columns:1fr}}