:root{--primary-bg: #ffffff;--secondary-bg: #f8fafc;--card-bg: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--text-tertiary: #94a3b8;--accent-primary: #6366f1;--accent-secondary: #4f46e5;--accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);--accent-gradient-2: linear-gradient(135deg, #06b6d4, #3b82f6);--border-light: #e2e8f0;--border-medium: #cbd5e1;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 20px;--transition: all .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: all .3s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--primary-bg: #0f172a;--secondary-bg: #1e293b;--card-bg: #1e293b;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--accent-primary: #818cf8;--accent-secondary: #6366f1;--accent-gradient: linear-gradient(135deg, #818cf8, #a78bfa);--accent-gradient-2: linear-gradient(135deg, #22d3ee, #60a5fa);--border-light: #334155;--border-medium: #475569;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -1px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .3), 0 4px 6px -2px rgba(0, 0, 0, .2);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .3), 0 10px 10px -5px rgba(0, 0, 0, .2)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--primary-bg);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;line-height:1.6;overflow-x:hidden;transition:var(--transition-slow)}.landing-container{min-height:100vh;position:relative}.modal-overlay{position:fixed;inset:0;background:#0f172acc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.interest-modal{background:var(--card-bg);border-radius:var(--radius-xl);padding:0;max-width:500px;width:100%;max-height:90vh;overflow:hidden;box-shadow:var(--shadow-xl);border:1px solid var(--border-light);animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.modal-header{padding:24px;border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:center}.modal-title-section{display:flex;align-items:center;gap:12px}.modal-title-icon{color:var(--accent-primary);font-size:1.5rem}.modal-header h2{font-size:1.5rem;font-weight:700;color:var(--text-primary)}.close-modal{background:var(--secondary-bg);border:none;color:var(--text-secondary);width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}.close-modal:hover{background:var(--border-light);color:var(--text-primary)}.modal-content{padding:24px;max-height:60vh;overflow-y:auto}.current-interests-section,.add-interest-section,.predefined-interests-section{margin-bottom:24px}.current-interests-section h3,.add-interest-section h3,.predefined-interests-section h3{font-size:1.1rem;font-weight:600;margin-bottom:16px;color:var(--text-primary)}.interest-chips{display:flex;flex-wrap:wrap;gap:8px}.interest-chip{display:flex;align-items:center;gap:6px;background:var(--accent-primary);color:#fff;padding:8px 16px;border-radius:20px;font-size:.9rem;font-weight:500;transition:var(--transition)}.interest-chip:hover{background:var(--accent-secondary)}.remove-interest{background:#fff3;border:none;color:#fff;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:.7rem;transition:var(--transition)}.remove-interest:hover{background:#ffffff4d}.interest-input-container{display:flex;gap:12px}.interest-input{flex:1;padding:12px 16px;border:1px solid var(--border-light);border-radius:var(--radius-lg);background:var(--primary-bg);color:var(--text-primary);font-size:.95rem;transition:var(--transition)}.interest-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f11a}.interest-input::placeholder{color:var(--text-tertiary)}.add-interest-btn{background:var(--accent-primary);color:#fff;border:none;border-radius:var(--radius-lg);padding:12px 20px;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center}.add-interest-btn:hover:not(:disabled){background:var(--accent-secondary);transform:translateY(-1px)}.add-interest-btn:disabled{background:var(--text-tertiary);cursor:not-allowed;transform:none}.interest-categories{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px}.interest-category{background:var(--secondary-bg);border:1px solid var(--border-light);color:var(--text-secondary);padding:12px 16px;border-radius:var(--radius-lg);cursor:pointer;transition:var(--transition);font-size:.9rem;font-weight:500;position:relative;display:flex;align-items:center;justify-content:space-between}.interest-category:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-1px)}.interest-category.selected{background:var(--accent-primary);color:#fff;border-color:var(--accent-primary)}.selected-check{font-size:.8rem}.modal-actions{padding:24px;border-top:1px solid var(--border-light);display:flex;justify-content:flex-end}.save-interests-btn{background:var(--accent-gradient);color:#fff;border:none;padding:12px 32px;border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:var(--transition);font-size:.95rem}.save-interests-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.landing-header{position:sticky;top:0;z-index:100;background:#fffc;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-light);transition:var(--transition-slow)}[data-theme=dark] .landing-header{background:#0f172acc}.header-container{display:flex;justify-content:space-between;align-items:center;padding:16px 5%;max-width:1400px;margin:0 auto;gap:20px}.header-left{flex-shrink:0}.logo{display:flex;align-items:center;gap:8px}.logo-icon{font-size:28px;color:var(--accent-primary)}.logo-text{font-size:1.5rem;font-weight:800;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header-center{flex:1;display:flex;justify-content:center}.online-indicator{display:flex;align-items:center;gap:8px;background:var(--secondary-bg);padding:8px 16px;border-radius:var(--radius-lg);font-size:.9rem;font-weight:500;border:1px solid var(--border-light)}.pulse-dot{width:8px;height:8px;background:#10b981;border-radius:50%;animation:pulse 2s infinite}.online-icon{color:#10b981;font-size:.9rem}.online-count{color:var(--accent-primary);font-weight:700}.online-text{color:var(--text-tertiary)}.header-right{display:flex;align-items:center;gap:16px;flex-shrink:0}.header-controls{display:flex;align-items:center;gap:12px}.interest-btn,.theme-toggle-btn{display:flex;align-items:center;gap:8px;background:var(--secondary-bg);border:1px solid var(--border-light);color:var(--text-secondary);padding:10px 16px;border-radius:var(--radius-lg);cursor:pointer;transition:var(--transition);font-weight:500;font-size:.9rem}.interest-btn:hover,.theme-toggle-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-1px)}.btn-icon{font-size:.9rem}.mobile-menu-toggle{display:none;background:var(--secondary-bg);border:1px solid var(--border-light);color:var(--text-secondary);width:44px;height:44px;cursor:pointer;transition:var(--transition);align-items:center;justify-content:center;border-radius:var(--radius-lg)}.mobile-menu-toggle:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.get-started-btn{background:var(--accent-gradient);color:#fff;border:none;padding:12px 24px;border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:var(--transition);font-size:.95rem}.get-started-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.mobile-nav-overlay{position:fixed;top:0;right:-100%;width:100%;height:100vh;background:#0f172acc;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:99;transition:var(--transition-slow)}.mobile-nav-overlay.active{right:0}.mobile-nav{position:absolute;top:0;right:0;width:320px;height:100%;background:var(--card-bg);border-left:1px solid var(--border-light);display:flex;flex-direction:column;padding:0}.mobile-nav-header{display:flex;justify-content:space-between;align-items:center;padding:24px;border-bottom:1px solid var(--border-light)}.mobile-logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.2rem;color:var(--text-primary)}.close-mobile-nav{background:var(--secondary-bg);border:none;color:var(--text-secondary);width:36px;height:36px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}.close-mobile-nav:hover{background:var(--border-light);color:var(--text-primary)}.mobile-nav-content{flex:1;padding:24px;display:flex;flex-direction:column;gap:24px}.mobile-online-indicator{display:flex;align-items:center;gap:8px;background:var(--secondary-bg);padding:12px 16px;border-radius:var(--radius-lg);font-weight:500}.mobile-theme-toggle{display:flex;justify-content:space-between;align-items:center;background:var(--secondary-bg);padding:12px 16px;border-radius:var(--radius-lg)}.mobile-theme-toggle span{font-weight:500}.mobile-nav-actions{margin-top:auto}.mobile-get-started{width:100%;background:var(--accent-gradient);color:#fff;border:none;padding:16px 24px;border-radius:var(--radius-lg);font-weight:600;cursor:pointer;transition:var(--transition);font-size:1rem}.mobile-get-started:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.hero-section{padding:80px 5% 120px;background:var(--primary-bg);position:relative;overflow:hidden}.hero-container{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center;position:relative;z-index:2}.hero-content{max-width:600px}.hero-badges{display:flex;gap:12px;margin-bottom:32px;flex-wrap:wrap}.hero-badge{display:flex;align-items:center;gap:8px;background:var(--secondary-bg);color:var(--text-secondary);padding:8px 16px;border-radius:20px;font-size:.85rem;font-weight:500;border:1px solid var(--border-light)}.badge-icon{color:var(--accent-primary);font-size:.9rem}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:24px;color:var(--text-primary)}.gradient-text{background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-description{font-size:1.2rem;color:var(--text-secondary);line-height:1.6;margin-bottom:40px}.hero-actions{display:flex;gap:16px;margin-bottom:48px;flex-wrap:wrap}.primary-cta,.secondary-cta{display:flex;align-items:center;gap:12px;padding:16px 32px;border:none;border-radius:var(--radius-lg);font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);position:relative;overflow:hidden}.primary-cta{background:var(--accent-gradient);color:#fff;box-shadow:var(--shadow-lg)}.primary-cta:hover{transform:translateY(-3px);box-shadow:var(--shadow-xl)}.cta-glow{position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}.primary-cta:hover .cta-glow{left:100%}.secondary-cta{background:transparent;color:var(--text-primary);border:2px solid var(--border-light)}.secondary-cta:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-2px)}.cta-icon{font-size:1.1rem}.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.stat-item{text-align:center}.stat-number{font-size:1.5rem;font-weight:800;color:var(--accent-primary);margin-bottom:4px}.stat-label{font-size:.9rem;color:var(--text-tertiary);font-weight:500}.star{color:#fbbf24;font-size:.8rem}.hero-visual{display:flex;justify-content:center;align-items:center;position:relative}.floating-cards{position:absolute;width:100%;height:100%;top:0;left:0;pointer-events:none}.floating-card{position:absolute;display:flex;align-items:center;gap:8px;background:var(--card-bg);padding:12px 16px;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);font-size:.85rem;font-weight:500;border:1px solid var(--border-light);animation:float 6s ease-in-out infinite;pointer-events:auto;cursor:pointer;transition:var(--transition)}.floating-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-xl)}@keyframes float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-10px) rotate(2deg)}}.card-icon{color:var(--accent-primary);font-size:1rem}.card-1{top:10%;right:10%;animation-delay:0s}.card-2{top:50%;right:-5%;animation-delay:2s}.card-3{bottom:20%;right:15%;animation-delay:4s}.video-chat-preview{background:var(--card-bg);border-radius:var(--radius-xl);padding:24px;box-shadow:var(--shadow-xl);border:1px solid var(--border-light);position:relative;overflow:hidden;max-width:400px;width:100%}.video-chat-preview:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent-gradient)}.video-screen{background:var(--secondary-bg);border-radius:var(--radius-lg);padding:40px 20px;position:relative;min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}.user-avatar{width:60px;height:60px;border-radius:50%;position:relative}.user-avatar.primary{background:var(--accent-gradient);align-self:flex-start}.user-avatar.secondary{background:var(--accent-gradient-2);align-self:flex-end}.chat-bubbles{display:flex;flex-direction:column;gap:12px;width:100%}.bubble{padding:12px 16px;border-radius:18px;font-size:.9rem;max-width:80%;line-height:1.4}.bubble.incoming{background:var(--card-bg);color:var(--text-primary);align-self:flex-start;border-bottom-left-radius:4px;border:1px solid var(--border-light)}.bubble.outgoing{background:var(--accent-primary);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.hero-background{position:absolute;inset:0;overflow:hidden;z-index:1}.bg-shape{position:absolute;border-radius:50%;background:linear-gradient(135deg,var(--accent-primary),transparent);opacity:.1;animation:float 20s ease-in-out infinite}.shape-1{width:400px;height:400px;top:-200px;right:-100px;animation-delay:0s}.shape-2{width:300px;height:300px;bottom:-150px;left:-100px;animation-delay:5s}.shape-3{width:200px;height:200px;top:50%;right:10%;animation-delay:10s}.section-container{max-width:1200px;margin:0 auto;padding:0 5%}.section-header{text-align:center;margin-bottom:80px}.section-title{font-size:3rem;font-weight:800;margin-bottom:16px;color:var(--text-primary)}.section-subtitle{font-size:1.2rem;color:var(--text-secondary);max-width:600px;margin:0 auto;line-height:1.6}.features-section{padding:120px 0;background:var(--secondary-bg)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px}.feature-card{background:var(--card-bg);padding:40px 32px;border-radius:var(--radius-xl);box-shadow:var(--shadow-md);border:1px solid var(--border-light);text-align:center;transition:var(--transition);position:relative;overflow:hidden}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.feature-icon{width:80px;height:80px;background:var(--accent-gradient);border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;color:#fff;font-size:2rem;margin:0 auto 24px}.feature-card h3{font-size:1.5rem;font-weight:700;margin-bottom:16px;color:var(--text-primary)}.feature-card p{color:var(--text-secondary);line-height:1.6}.feature-highlight{position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(99,102,241,.05),transparent);transition:left .5s ease}.feature-card:hover .feature-highlight{left:100%}.testimonials-section{padding:120px 0;background:var(--primary-bg)}.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:32px}.testimonial-card{background:var(--card-bg);padding:40px 32px;border-radius:var(--radius-xl);box-shadow:var(--shadow-md);border:1px solid var(--border-light);transition:var(--transition)}.testimonial-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.testimonial-content{position:relative;margin-bottom:32px}.quote-mark{font-size:4rem;color:var(--accent-primary);opacity:.2;position:absolute;top:-20px;left:-10px;line-height:1}.testimonial-content p{font-style:italic;color:var(--text-secondary);line-height:1.6;font-size:1.1rem;position:relative;z-index:2}.testimonial-author{display:flex;align-items:center;gap:16px}.author-avatar{width:60px;height:60px;border-radius:50%;background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.2rem;flex-shrink:0}.author-info{flex:1}.author-name{font-size:1.1rem;font-weight:700;margin-bottom:4px;color:var(--text-primary)}.author-role{font-size:.9rem;color:var(--text-tertiary);margin-bottom:8px;display:block}.author-rating{display:flex;gap:2px}.star.filled{color:#fbbf24;font-size:.9rem}.cta-section{padding:120px 0;background:var(--accent-gradient);color:#fff;text-align:center}.cta-container{max-width:800px;margin:0 auto;padding:0 5%}.cta-title{font-size:3rem;font-weight:800;margin-bottom:16px}.cta-description{font-size:1.2rem;opacity:.9;margin-bottom:40px;line-height:1.6;max-width:600px;margin-left:auto;margin-right:auto}.cta-actions{display:flex;gap:16px;justify-content:center;margin-bottom:40px;flex-wrap:wrap}.cta-primary,.cta-secondary{display:flex;align-items:center;gap:12px;padding:16px 32px;border:none;border-radius:var(--radius-lg);font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition)}.cta-primary{background:#fff;color:var(--accent-primary)}.cta-primary:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}.cta-secondary{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.3)}.cta-secondary:hover{background:#fff;color:var(--accent-primary);transform:translateY(-2px)}.landing-footer{background:var(--secondary-bg);border-top:1px solid var(--border-light)}.footer-container{max-width:1200px;margin:0 auto;padding:0 5%}.footer-content{padding:80px 0 40px}.footer-main{display:grid;grid-template-columns:1fr 2fr;gap:80px;margin-bottom:60px}.footer-brand{max-width:300px}.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:16px}.footer-logo .logo-icon{font-size:24px}.footer-logo .logo-text{font-size:1.4rem}.footer-description{color:var(--text-secondary);line-height:1.6;margin-bottom:24px}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.link-column{display:flex;flex-direction:column;gap:12px}.link-column h4{font-size:1.1rem;font-weight:600;margin-bottom:8px;color:var(--text-primary)}.link-column a{color:var(--text-secondary);text-decoration:none;font-size:.9rem;transition:var(--transition)}.link-column a:hover{color:var(--accent-primary)}.footer-bottom{padding-top:40px;border-top:1px solid var(--border-light);text-align:center}.footer-copyright{color:var(--text-tertiary);font-size:.9rem}@media(max-width:1024px){.hero-container{grid-template-columns:1fr;gap:60px;text-align:center}.hero-content{max-width:none;margin:0 auto}.features-grid{grid-template-columns:repeat(2,1fr)}.footer-main{grid-template-columns:1fr;gap:60px}.footer-links{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.header-container{padding:12px 5%}.header-center,.online-indicator{display:none}.desktop-only{display:none!important}.mobile-menu-toggle{display:flex}.hero-title{font-size:2.5rem}.section-title{font-size:2.2rem}.features-grid,.testimonials-grid{grid-template-columns:1fr}.cta-title{font-size:2.2rem}.cta-actions{flex-direction:column;align-items:center}.cta-primary,.cta-secondary{width:100%;max-width:300px;justify-content:center}.footer-links{grid-template-columns:1fr}.floating-card{display:none}}@media(max-width:480px){.hero-title{font-size:2rem}.section-title{font-size:1.8rem}.hero-actions{flex-direction:column;align-items:center}.primary-cta,.secondary-cta{width:100%;max-width:300px;justify-content:center}.hero-stats{grid-template-columns:repeat(2,1fr)}.modal-content{padding:20px}.interest-categories{grid-template-columns:repeat(2,1fr)}.mobile-nav{width:280px}}.desktop-only{display:block}@media(max-width:768px){.desktop-only{display:none!important}}.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:500px}.visual-container{position:relative;width:100%;max-width:500px;height:400px}.gradient-orbs{position:absolute;width:100%;height:100%;top:0;left:0}.orb{position:absolute;border-radius:50%;filter:blur(40px);opacity:.4;animation:floatOrb 8s ease-in-out infinite}.orb-1{width:120px;height:120px;background:var(--accent-gradient);top:10%;left:10%;animation-delay:0s}.orb-2{width:80px;height:80px;background:var(--accent-gradient-2);top:60%;right:15%;animation-delay:2s}.orb-3{width:100px;height:100px;background:linear-gradient(135deg,#8b5cf6,#06b6d4);bottom:20%;left:20%;animation-delay:4s}@keyframes floatOrb{0%,to{transform:translateY(0) scale(1)}50%{transform:translateY(-20px) scale(1.1)}}.modern-chat-preview{background:var(--card-bg);border-radius:20px;box-shadow:var(--shadow-xl);border:1px solid var(--border-light);overflow:hidden;position:relative;z-index:2;height:100%;display:flex;flex-direction:column}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:var(--secondary-bg);border-bottom:1px solid 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60%,20% 60%,20% 40%,30% 40%)}.control-icon.video:before{clip-path:polygon(20% 0%,80% 0%,80% 60%,100% 40%,100% 100%,0% 100%,0% 40%,20% 60%)}.control-icon.end-call:before{background:#ef4444;border-radius:2px}.control-icon.active:before{background:#fff}.video-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:20px;flex:1}.video-tile{background:var(--secondary-bg);border-radius:12px;border:1px solid var(--border-light);overflow:hidden;position:relative}.video-feed{width:100%;height:100%;display:flex;align-items:center;justify-content:center;position:relative}.user-avatar{width:60px;height:60px;border-radius:50%;background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:.9rem}.avatar-small{width:28px;height:28px;border-radius:50%;background:var(--accent-primary);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:.7rem}.video-overlay{position:absolute;bottom:8px;left:8px;display:flex;align-items:center;gap:6px}.speaking-indicator{width:8px;height:8px;border-radius:50%;background:var(--text-tertiary);animation:pulse 2s infinite}.speaking-indicator.active{background:#10b981;animation:pulse 1s infinite}.message-row{display:flex;align-items:flex-end;gap:8px}.message-row.incoming{justify-content:flex-start}.message-row.outgoing{justify-content:flex-end}.message-row.outgoing .message-content{order:-1}.message-content{display:flex;flex-direction:column;gap:4px;max-width:70%}.message-bubble{padding:10px 14px;border-radius:16px;font-size:.8rem;line-height:1.4}.message-row.incoming .message-bubble{background:var(--secondary-bg);color:var(--text-primary);border-bottom-left-radius:4px}.message-row.outgoing .message-bubble{background:var(--accent-primary);color:#fff;border-bottom-right-radius:4px}.message-time{font-size:.7rem;color:var(--text-tertiary);text-align:right}.message-row.incoming .message-time{text-align:left}.floating-highlights{position:absolute;width:100%;height:100%;top:0;left:0;pointer-events:none}.highlight-card{position:absolute;display:flex;align-items:center;gap:10px;background:var(--card-bg);padding:12px 16px;border-radius:12px;box-shadow:var(--shadow-lg);border:1px solid var(--border-light);font-size:.8rem;font-weight:500;animation:floatHighlight 6s ease-in-out infinite;pointer-events:auto;cursor:pointer;transition:var(--transition);z-index:3}.highlight-card:hover{transform:translateY(-5px) scale(1.05);box-shadow:var(--shadow-xl)}.highlight-icon{width:32px;height:32px;background:var(--accent-gradient);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.9rem;flex-shrink:0}.highlight-content{display:flex;flex-direction:column;gap:2px}.highlight-title{font-weight:600;color:var(--text-primary)}.highlight-desc{font-size:.7rem;color:var(--text-tertiary);font-weight:400}.highlight-card:hover .highlight-glow{left:100%}.highlight-1{top:5%;right:-10%;animation-delay:0s}.highlight-2{top:50%;left:-15%;animation-delay:2s}.highlight-3{bottom:15%;right:-8%;animation-delay:4s}@keyframes floatHighlight{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-10px) rotate(2deg)}}@media(max-width:768px){.visual-container{height:350px}.highlight-card{display:none}.video-grid{padding:16px;gap:8px}.chat-header{padding:12px 16px}.chat-messages{padding:0 16px 16px;max-height:100px}.user-avatar{width:50px;height:50px;font-size:.8rem}}@media(max-width:480px){.visual-container{height:300px}.header-users{gap:12px}.user-status span{font-size:.7rem}.call-controls{gap:4px}.control-icon{width:28px;height:28px}.video-grid{padding:12px}.chat-messages{padding:0 12px 12px;max-height:80px}.message-bubble{padding:8px 12px;font-size:.75rem}}:root{--primary-bg: #ffffff;--secondary-bg: #f8fafc;--card-bg: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--text-tertiary: #94a3b8;--accent-primary: #6366f1;--accent-secondary: #4f46e5;--accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);--success: #10b981;--error: #ef4444;--warning: #f59e0b;--border-light: #e2e8f0;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--transition: all .2s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--primary-bg: #0f172a;--secondary-bg: #1e293b;--card-bg: #1e293b;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--text-tertiary: #94a3b8;--accent-primary: #818cf8;--accent-secondary: #6366f1;--border-light: #334155}.video-chat-app{height:100vh;background:var(--primary-bg);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif}.mobile-layout{display:none}.desktop-layout{display:flex;height:100vh}.video-section{width:25%;background:var(--secondary-bg);display:flex;flex-direction:column;border-right:1px solid var(--border-light)}.video-container{flex:1;position:relative;padding:20px;height:calc(99% - 100px)}.video-wrapper{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);background:var(--card-bg);border:1px solid var(--border-light)}.stranger-video{width:100%;height:50%;margin-bottom:20px}.your-video{width:100%;height:50%}.video-element{width:100%;height:100%;object-fit:cover;background:var(--primary-bg)}.video-label{position:absolute;top:12px;left:12px;background:#000000b3;color:#fff;padding:6px 12px;border-radius:20px;font-size:.8rem;font-weight:500;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.video-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(135deg,#1e293be6,#1e293bcc);color:#fff;gap:16px}.video-overlay.loading{background:linear-gradient(135deg,#1e293bf2,#1e293bd9)}.video-overlay.idle{background:linear-gradient(135deg,#6366f11a,#8b5cf60d);color:var(--text-primary)}.loading-spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.3);border-top:3px solid white;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.user-avatar{width:60px;height:60px;border-radius:50%;background:var(--accent-gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}.camera-off-overlay{position:absolute;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem}.controls-panel{padding:20px;background:var(--card-bg);border-top:1px solid var(--border-light)}.controls-group{display:flex;gap:12px;justify-content:center}.control-btn{display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--secondary-bg);border:1px solid var(--border-light);color:var(--text-secondary);padding:12px 16px;border-radius:var(--radius-lg);cursor:pointer;transition:var(--transition);font-size:.85rem;font-weight:500;min-width:80px}.control-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-2px)}.control-btn.active{background:var(--error);color:#fff;border-color:var(--error)}.call-btn{background:var(--accent-gradient);color:#fff;border:none;min-width:100px}.call-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.call-btn.end{background:var(--error)}.call-btn.end:hover{background:#dc2626}.btn-label{font-size:.75rem;font-weight:500}.confirm-text{font-weight:600;font-size:.9rem}.chat-section{width:75%;display:flex;flex-direction:column;background:var(--card-bg)}.chat-header{padding:20px 24px;border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:center;background:var(--secondary-bg)}.chat-header h3{color:var(--text-primary);font-size:1.3rem;font-weight:600}.chat-status{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%}.status-dot.connected{background:var(--success);animation:pulse 2s infinite}.status-dot.disconnected{background:var(--text-tertiary)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.chat-messages{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:16px;height:80%}.empty-chat{text-align:center;color:var(--text-tertiary);padding:60px 20px}.empty-icon{font-size:3rem;margin-bottom:16px;opacity:.5}.empty-chat p{font-size:1.1rem;margin-bottom:8px;color:var(--text-secondary)}.empty-chat span{font-size:.9rem}.message{display:flex}.message.outgoing{justify-content:flex-end}.message.system{justify-content:center}.message-content{max-width:70%}.message-sender{font-size:.8rem;font-weight:600;color:var(--text-secondary);margin-bottom:4px;padding:0 12px}.message.outgoing .message-sender{text-align:right}.message-bubble{padding:12px 16px;border-radius:18px;font-size:.9rem;line-height:1.4;word-wrap:break-word}.message.incoming .message-bubble{background:var(--secondary-bg);color:var(--text-primary);border-bottom-left-radius:4px}.message.outgoing .message-bubble{background:var(--accent-primary);color:#fff;border-bottom-right-radius:4px}.message.system .message-bubble{background:var(--secondary-bg);color:var(--text-secondary);font-style:italic;text-align:center;font-size:.8rem}.message-time{font-size:.7rem;color:var(--text-tertiary);margin-top:4px;padding:0 12px}.message.outgoing .message-time{text-align:right}.chat-input-container{padding:20px 24px;border-top:1px solid var(--border-light);display:flex;gap:12px;background:var(--secondary-bg)}.chat-input{flex:1;padding:12px 16px;border:1px solid var(--border-light);border-radius:var(--radius-lg);background:var(--primary-bg);color:var(--text-primary);font-size:.9rem;transition:var(--transition)}.chat-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px #6366f11a}.chat-input:disabled{background:var(--secondary-bg);color:var(--text-tertiary);cursor:not-allowed}.send-button{background:var(--accent-primary);color:#fff;border:none;border-radius:var(--radius-lg);padding:12px 16px;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center}.send-button:hover:not(:disabled){background:var(--accent-secondary);transform:translateY(-1px)}.send-button:disabled{background:var(--text-tertiary);cursor:not-allowed;transform:none}@media(max-width:768px){.desktop-layout{display:none}.mobile-layout{display:flex;flex-direction:column;height:100%}.mobile-video-section{height:45vh;background:var(--secondary-bg);position:relative}.stranger-video-mobile{width:100%;height:100%;background:var(--card-bg);position:relative}.your-video-mobile{position:absolute;bottom:16px;right:16px;width:100px;height:75px;border-radius:var(--radius-lg);overflow:hidden;border:3px solid var(--card-bg);background:var(--card-bg);box-shadow:var(--shadow-md)}.mobile-chat-section{flex:1;display:flex;flex-direction:column;background:var(--card-bg);height:60%}.mobile-chat-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.mobile-controls-input{border-top:1px solid var(--border-light);background:var(--secondary-bg)}.mobile-controls{padding:16px;display:flex;gap:12px;justify-content:center}.mobile-controls .control-btn{padding:12px;min-width:60px}.mobile-controls .btn-label{display:none}.mobile-input-container{padding:0 16px 16px;display:flex;gap:12px}.message-content{max-width:85%}.message-bubble{font-size:.85rem;padding:10px 14px}}@media(max-width:480px){.mobile-video-section{height:40%}.your-video-mobile{width:90px;height:90px;bottom:12px;right:12px}.mobile-controls{padding:12px;gap:8px}.mobile-controls .control-btn{padding:10px;min-width:50px}.mobile-chat-messages{padding:12px}.mobile-input-container{padding:0 12px 12px}.user-avatar{width:40px;height:40px;font-size:1.2rem}.video-overlay p{font-size:.9rem;text-align:center;padding:0 16px}}@media(max-height:500px)and (orientation:landscape){.mobile-video-section{height:45vh}.mobile-chat-section{height:55vh}.your-video-mobile{width:90px;height:90px}}html,body{width:100%;max-width:100%;overflow-x:hidden}.video-chat-app,.mobile-layout{width:100%;max-width:100%;overflow-x:hidden;margin:0;padding:0;box-sizing:border-box}.mobile-controls .control-btn,.send-button{min-width:auto;flex-shrink:1}.mobile-controls,.mobile-input-container{display:flex;flex-wrap:nowrap;justify-content:center;align-items:center;gap:8px}