.language-switcher{position:relative}.language-button{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:.875rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);min-width:120px}.language-button:hover{border-color:var(--primary);background:var(--bg-tertiary)}.language-button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.language-icon{font-size:1.125rem}.language-name{flex:1;text-align:left}html[dir=rtl] .language-name{text-align:right}.dropdown-arrow{font-size:.75rem;color:var(--text-tertiary);transition:transform var(--transition-base)}.language-dropdown{position:absolute;top:calc(100% + var(--spacing-xs));right:0;min-width:240px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:var(--spacing-sm);z-index:1000;max-height:400px;overflow-y:auto}html[dir=rtl] .language-dropdown{right:auto;left:0}.language-option{display:flex;align-items:center;gap:var(--spacing-md);width:100%;padding:var(--spacing-md);background:none;border:none;border-radius:var(--radius-md);text-align:left;cursor:pointer;transition:all var(--transition-base);position:relative}html[dir=rtl] .language-option{text-align:right}.language-option:hover{background:var(--bg-secondary)}.language-option.active{background:var(--accent-dim);color:var(--primary)}.lang-native{font-weight:600;color:var(--text-primary);flex:1}.lang-english{font-size:.75rem;color:var(--text-tertiary)}.check-mark{color:var(--primary);font-weight:700;margin-left:var(--spacing-sm)}html[dir=rtl] .check-mark{margin-left:0;margin-right:var(--spacing-sm)}.language-dropdown::-webkit-scrollbar{width:6px}.language-dropdown::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-sm)}.language-dropdown::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-sm)}.language-dropdown::-webkit-scrollbar-thumb:hover{background:var(--primary)}@media (max-width: 480px){.language-button{min-width:auto;padding:var(--spacing-xs) var(--spacing-sm)}.language-name{display:none}.language-dropdown{right:auto;left:50%;transform:translate(-50%)}html[dir=rtl] .language-dropdown{left:50%;right:auto;transform:translate(-50%)}}.landing-page{min-height:100vh;background:var(--bg-primary)}.landing-header{position:sticky;top:0;z-index:100;background:var(--bg-card);border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:var(--spacing-md) 0}.header-content{display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-lg)}.logo{display:flex;align-items:center;gap:var(--spacing-md)}.logo-img{width:50px;height:50px;border-radius:var(--radius-lg);box-shadow:var(--shadow-glow-primary)}.footer-logo{width:40px;height:40px;border-radius:var(--radius-md)}.logo h1{font-size:2rem;font-weight:800;margin:0;letter-spacing:-1px}.logo-subtitle{font-size:.875rem;color:var(--text-secondary);margin:0}.header-actions{display:flex;align-items:center;gap:var(--spacing-md)}.theme-toggle{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-md);font-size:1.25rem;cursor:pointer;transition:all var(--transition-base)}.theme-toggle:hover{transform:scale(1.1);border-color:var(--primary)}.theme-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.hero{padding:var(--spacing-3xl) 0;background:var(--gradient-hero);border-bottom:1px solid var(--border);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;right:-20%;width:60%;height:150%;background:radial-gradient(circle,rgba(217,28,92,.08) 0%,transparent 70%);animation:float 20s ease-in-out infinite}.hero:after{content:"";position:absolute;bottom:-50%;left:-20%;width:60%;height:150%;background:radial-gradient(circle,rgba(8,145,178,.08) 0%,transparent 70%);animation:float 20s ease-in-out infinite reverse}@keyframes float{0%,to{transform:translate(0) scale(1)}50%{transform:translate(-20px,20px) scale(1.1)}}.hero-content{position:relative;z-index:1;text-align:center;max-width:900px;margin:0 auto}.hero-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;line-height:1.2;margin:0 0 var(--spacing-xl) 0;color:var(--text-primary)}.hero-subtitle{font-size:clamp(1.125rem,2vw,1.25rem);color:var(--text-secondary);line-height:1.7;margin:0 0 var(--spacing-2xl) 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var(--transition-base)}.problem-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--primary)}.problem-icon{font-size:3rem;margin-bottom:var(--spacing-md)}.problem-card h4{font-size:1.25rem;font-weight:700;margin:0 0 var(--spacing-sm) 0;color:var(--text-primary)}.problem-card p{color:var(--text-secondary);line-height:1.6;margin:0}.features-section{padding:var(--spacing-3xl) 0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--spacing-xl)}.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--spacing-xl);transition:all var(--transition-base)}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}.feature-icon{font-size:2.5rem;color:var(--primary);margin-bottom:var(--spacing-md)}.feature-title{font-size:1.25rem;font-weight:700;margin:0 0 var(--spacing-sm) 0;color:var(--text-primary)}.feature-description{color:var(--text-secondary);line-height:1.7;margin:0}.how-it-works-section{padding:var(--spacing-3xl) 0;background:var(--bg-secondary)}.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-lg);align-items:center}.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--spacing-xl);text-align:center;position:relative}.step-number{display:inline-flex;align-items:center;justify-content:center;width:60px;height:60px;background:var(--gradient-primary);color:#fff;font-size:1.5rem;font-weight:700;border-radius:var(--radius-full);margin-bottom:var(--spacing-md);box-shadow:var(--shadow-glow-primary)}.step-card h4{font-size:1.125rem;font-weight:700;margin:0 0 var(--spacing-sm) 0;color:var(--text-primary)}.step-card p{color:var(--text-secondary);line-height:1.6;margin:0;font-size:.9375rem}.step-arrow{font-size:2rem;color:var(--primary);text-align:center;font-weight:700}.testimonials-section{padding:var(--spacing-3xl) 0}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-xl)}.testimonial-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--spacing-xl);transition:all var(--transition-base)}.testimonial-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.testimonial-quote{font-size:1.125rem;font-style:italic;color:var(--text-primary);line-height:1.7;margin:0 0 var(--spacing-lg) 0}.testimonial-author{display:flex;flex-direction:column;gap:var(--spacing-xs)}.testimonial-author strong{color:var(--text-primary);font-weight:600}.testimonial-author span{color:var(--text-tertiary);font-size:.875rem}.cta-section{padding:var(--spacing-3xl) 0;background:var(--gradient-hero);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.cta-content{text-align:center;max-width:700px;margin:0 auto}.cta-title{font-size:clamp(2rem,4vw,2.5rem);font-weight:700;margin:0 0 var(--spacing-md) 0;color:var(--text-primary)}.cta-subtitle{font-size:1.125rem;color:var(--text-secondary);line-height:1.7;margin:0 0 var(--spacing-2xl) 0}.cta-buttons{display:flex;gap:var(--spacing-md);justify-content:center;flex-wrap:wrap}.landing-footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:var(--spacing-3xl) 0 var(--spacing-xl) 0}.footer-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-2xl);margin-bottom:var(--spacing-2xl)}.footer-section h4{font-size:1rem;font-weight:700;margin:0 0 var(--spacing-md) 0;color:var(--text-primary)}.footer-section p{color:var(--text-secondary);line-height:1.7;margin:0}.footer-tagline{margin-top:var(--spacing-md);max-width:300px}.footer-section ul{list-style:none;padding:0;margin:0}.footer-section li{margin-bottom:var(--spacing-sm)}.footer-section a{color:var(--text-secondary);text-decoration:none;transition:color var(--transition-base)}.footer-section a:hover{color:var(--primary)}.footer-section a:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:var(--radius-sm)}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:var(--spacing-xl);border-top:1px solid var(--border);flex-wrap:wrap;gap:var(--spacing-md)}.footer-bottom p{color:var(--text-tertiary);margin:0}.footer-links{display:flex;gap:var(--spacing-lg)}.footer-links a{color:var(--text-tertiary);text-decoration:none;transition:color var(--transition-base)}.footer-links a:hover{color:var(--primary)}@media (max-width: 1024px){.steps-grid{grid-template-columns:1fr}.step-arrow{transform:rotate(90deg)}}@media (max-width: 768px){.header-content{flex-wrap:wrap}.header-actions{width:100%;justify-content:space-between}.hero{padding:var(--spacing-2xl) 0}.hero-cta{flex-direction:column;align-items:stretch}.hero-cta .btn{width:100%}.problem-grid,.features-grid,.testimonials-grid{grid-template-columns:1fr}.cta-buttons{flex-direction:column;align-items:stretch}.cta-buttons .btn{width:100%}.footer-bottom{flex-direction:column;text-align:center}}@media (max-width: 480px){.logo h1{font-size:1.5rem}.logo-img{width:40px;height:40px}.hero-title{font-size:2rem}.section-title{font-size:1.75rem}.problem-section,.features-section,.how-it-works-section,.testimonials-section,.cta-section{padding:var(--spacing-2xl) 0}}html[dir=rtl] .step-arrow{transform:scaleX(-1)}html[dir=rtl] .header-content,html[dir=rtl] .header-actions,html[dir=rtl] .footer-bottom,html[dir=rtl] .footer-links,html[dir=rtl] .logo{flex-direction:row-reverse}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--spacing-xl);background:var(--gradient-hero);position:relative;overflow:hidden}.auth-container:before{content:"";position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(217,28,92,.1) 0%,transparent 70%);animation:pulse 8s ease-in-out infinite}.auth-container:after{content:"";position:absolute;bottom:-50%;left:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(8,145,178,.1) 0%,transparent 70%);animation:pulse 8s ease-in-out infinite reverse}@keyframes pulse{0%,to{transform:scale(1);opacity:.5}50%{transform:scale(1.1);opacity:.8}}.auth-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--spacing-3xl);max-width:450px;width:100%;box-shadow:var(--shadow-xl);position:relative;z-index:1;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.back-button{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:var(--spacing-sm);margin-bottom:var(--spacing-md);font-weight:600;transition:color var(--transition-base);display:flex;align-items:center;gap:var(--spacing-xs)}.back-button:hover{color:var(--primary)}.back-button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:var(--radius-sm)}.auth-header{text-align:center;margin-bottom:var(--spacing-xl)}.auth-logo{width:80px;height:80px;margin-bottom:var(--spacing-md);box-shadow:var(--shadow-glow-primary);border-radius:var(--radius-lg)}.auth-form h2{margin-bottom:var(--spacing-xl);color:var(--text-primary);font-size:1.5rem;font-weight:700}.form-group{margin-bottom:var(--spacing-lg)}.form-group label{display:block;margin-bottom:var(--spacing-sm);color:var(--text-secondary);font-weight:600;font-size:.875rem}.form-group input{width:100%;padding:var(--spacing-md);border:2px solid var(--border);border-radius:var(--radius-md);background:var(--bg-secondary);color:var(--text-primary);font-size:1rem;transition:all var(--transition-base)}.form-group input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #d91c5c1a}.form-group input::placeholder{color:var(--text-tertiary)}.error-message{background:#dc26261a;border:1px solid var(--error);color:var(--error);padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-md);font-size:.875rem}.btn-link{background:none;border:none;color:var(--primary);cursor:pointer;margin-top:var(--spacing-md);width:100%;padding:var(--spacing-sm);font-weight:600;transition:color var(--transition-base)}.btn-link:hover{color:var(--primary-hover);text-decoration:underline}.btn-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:var(--radius-sm)}.auth-footer{margin-top:var(--spacing-xl);padding-top:var(--spacing-xl);border-top:1px solid var(--border);text-align:center}.text-sm{font-size:.875rem;color:var(--text-tertiary);line-height:1.5}@media (max-width: 480px){.auth-card{padding:var(--spacing-xl)}.auth-logo{width:60px;height:60px}.auth-form h2{font-size:1.25rem}}.dashboard-container{display:flex;min-height:100vh;background:var(--bg-primary)}.sidebar{width:280px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;height:100vh;overflow-y:auto}.sidebar-header{display:flex;align-items:center;gap:1rem;padding:1.5rem;border-bottom:1px solid var(--border)}.sidebar-logo{width:48px;height:48px}.sidebar-subtitle{font-size:.875rem;color:var(--text-tertiary)}.user-info{display:flex;align-items:center;gap:.75rem;padding:1rem 1.5rem;border-bottom:1px solid var(--border)}.user-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600}.user-name{font-weight:600;color:var(--text-primary)}.user-email{font-size:.75rem;color:var(--text-tertiary)}.sidebar-nav{flex:1;padding:1rem 0}.nav-section{margin-bottom:1.5rem}.nav-section-title{font-size:.75rem;font-weight:600;text-transform:uppercase;color:var(--text-tertiary);padding:0 1.5rem;margin-bottom:.5rem}.nav-item{display:flex;align-items:center;gap:.75rem;width:100%;padding:.75rem 1.5rem;border:none;background:none;color:var(--text-secondary);cursor:pointer;transition:all .2s;text-align:left}.nav-item:hover{background:var(--bg-hover);color:var(--text-primary)}.nav-item.active{background:var(--accent-dim);color:var(--accent);border-left:3px solid var(--accent)}.nav-icon{width:20px;height:20px}.nav-badge{margin-left:auto;font-size:.75rem;padding:.25rem .5rem;background:var(--accent-dim);color:var(--accent);border-radius:12px}.btn-logout{margin:1rem 1.5rem;padding:.75rem;border:1px solid var(--border);background:none;color:var(--text-secondary);border-radius:8px;cursor:pointer;transition:all .2s}.btn-logout:hover{background:var(--bg-hover);border-color:var(--text-secondary)}.main-content{margin-left:280px;flex:1;padding:2rem;min-height:100vh}@media (max-width: 1024px){.sidebar{width:240px}.main-content{margin-left:240px}}.feed-container{max-width:1200px}.feed-grid{display:grid;gap:1.5rem}.qubyte-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:1.5rem;transition:transform .2s,box-shadow .2s}.qubyte-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a}.qubyte-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.category-badge{display:inline-block;padding:.25rem .75rem;background:var(--accent-dim);color:var(--accent);border-radius:12px;font-size:.75rem;font-weight:600;text-transform:capitalize}.score-badge{padding:.25rem .75rem;background:#10b9811a;color:#10b981;border-radius:12px;font-size:.75rem;font-weight:600}.qubyte-title{font-size:1.25rem;margin-bottom:.75rem;color:var(--text-primary);line-height:1.4}.qubyte-summary{color:var(--text-secondary);line-height:1.6;margin-bottom:1rem}.qubyte-hashtags{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1rem}.hashtag{font-size:.75rem;color:var(--accent);padding:.25rem .5rem;background:var(--accent-dim);border-radius:4px}.qubyte-meta{display:flex;justify-content:space-between;align-items:center;padding-top:1rem;border-top:1px solid var(--border);margin-bottom:1rem;font-size:.875rem;color:var(--text-tertiary)}.source-link{color:var(--accent);text-decoration:none;font-weight:500}.source-link:hover{text-decoration:underline}.qubyte-reactions{display:flex;gap:.5rem}.reaction-btn{padding:.5rem;background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all .2s;color:var(--text-secondary)}.reaction-btn:hover{background:var(--accent-dim);border-color:var(--accent);color:var(--accent)}.loading-state,.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-tertiary)}.empty-state svg{color:var(--text-tertiary);margin-bottom:1rem}.empty-state h3{color:var(--text-primary);margin-bottom:.5rem}.preferences-container{max-width:1000px}.page-header{margin-bottom:2rem}.page-header h1{font-size:2rem;margin-bottom:.5rem;color:var(--text-primary)}.page-header p{color:var(--text-secondary)}.preferences-grid{display:grid;gap:2rem}.pref-section{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:1.5rem}.pref-section h2{font-size:1.25rem;margin-bottom:.5rem;color:var(--text-primary)}.section-desc{color:var(--text-tertiary);font-size:.875rem;margin-bottom:1rem}.checkbox-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;cursor:pointer;color:var(--text-secondary);transition:color .2s}.checkbox-label:hover{color:var(--text-primary)}.checkbox-label input[type=checkbox]{cursor:pointer}.capitalize{text-transform:capitalize}.select-input{width:100%;padding:.75rem;background:var(--bg-primary);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:1rem}.slider{width:100%;margin:1rem 0}.slider-value{text-align:center;font-weight:600;font-size:1.5rem;color:var(--accent)}.pref-actions{display:flex;align-items:center;gap:1rem;margin-top:2rem}.success-msg{color:#10b981;font-weight:600}.personas-container{max-width:1400px}.personas-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.persona-card{background:var(--bg-secondary);border:2px solid var(--border);border-radius:16px;padding:2rem;transition:all .3s;cursor:pointer}.persona-card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 8px 24px #00000026}.persona-card.active{border-color:var(--accent);background:var(--accent-dim)}.persona-icon{font-size:3rem;margin-bottom:1rem;text-align:center}.persona-card h3{font-size:1.5rem;margin-bottom:.75rem;color:var(--text-primary);text-align:center}.persona-desc{color:var(--text-secondary);font-size:.875rem;text-align:center;margin-bottom:1.5rem}.persona-features{list-style:none;padding:0;margin:0 0 1.5rem}.persona-features li{padding:.5rem 0;color:var(--text-secondary);font-size:.875rem;border-bottom:1px solid var(--border)}.persona-features li:last-child{border-bottom:none}.persona-card .btn{width:100%}.active-persona-info{background:var(--accent-dim);border:1px solid var(--accent);border-radius:12px;padding:1.5rem;text-align:center}.active-persona-info strong{color:var(--accent)}.active-persona-info .text-sm{margin-top:.5rem;color:var(--text-tertiary)}.trust-container{max-width:1400px}.trust-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.filter-controls{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;gap:1rem;flex-wrap:wrap}.filter-buttons{display:flex;gap:.75rem;flex-wrap:wrap}.filter-btn{padding:.75rem 1.5rem;background:var(--bg-secondary);border:2px solid var(--border);border-radius:8px;cursor:pointer;transition:all 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var(--spacing-md);font-size:.875rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:var(--spacing-xl);box-shadow:var(--shadow-md);transition:all var(--transition-base)}.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (max-width: 1024px){.container,.container-wide{padding:0 var(--spacing-md)}}@media (max-width: 768px){:root{--spacing-xl: 1.5rem;--spacing-2xl: 2rem;--spacing-3xl: 2.5rem}.container,.container-wide{padding:0 var(--spacing-md)}.btn{padding:var(--spacing-sm) var(--spacing-lg);font-size:.875rem}.btn-lg{padding:var(--spacing-md) var(--spacing-xl);font-size:1rem}.card{padding:var(--spacing-md)}}@media (max-width: 480px){.container,.container-wide{padding:0 var(--spacing-sm)}.btn{width:100%}.card{padding:var(--spacing-md)}}@media 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