:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.signup-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1rem;background:linear-gradient(135deg,#667eea,#764ba2);position:relative;overflow:hidden}.signup-container:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);background-size:50px 50px;animation:backgroundMove 20s linear infinite}.signup-card{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:3rem;width:100%;max-width:480px;position:relative;z-index:1;animation:slideUp .6s ease-out}.signup-header{text-align:center;margin-bottom:2.5rem}.signup-title{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0 0 .5rem;animation:fadeIn .8s ease-out}.signup-subtitle{color:#6b7280;font-size:1rem;margin:0;animation:fadeIn 1s ease-out}.signup-form{display:flex;flex-direction:column;gap:1.5rem}.signup-footer{margin-top:2rem;text-align:center;padding-top:2rem;border-top:1px solid #e5e7eb}@media(max-width:640px){.signup-card{padding:2rem 1.5rem}.signup-title{font-size:2rem}.signup-subtitle{font-size:.875rem}}@media(prefers-color-scheme:dark){.signup-card{background:#1f2937f2}.signup-title{background:linear-gradient(135deg,#818cf8,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.signup-subtitle{color:#9ca3af}.form-label{color:#e5e7eb}.form-input{background-color:#374151;border-color:#4b5563;color:#f9fafb}.form-input:focus{border-color:#818cf8;box-shadow:0 0 0 4px #818cf81a}.footer-text{color:#9ca3af}.signup-footer{border-top-color:#4b5563}}.login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem 1rem;background:linear-gradient(135deg,#667eea,#764ba2);position:relative;overflow:hidden}.login-container:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);background-size:50px 50px;animation:backgroundMove 20s linear infinite}.login-card{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;box-shadow:0 20px 60px #0000004d;padding:3rem;width:100%;max-width:480px;position:relative;z-index:1;animation:slideUp .6s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.login-header{text-align:center;margin-bottom:2.5rem}.login-title{font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0 0 .5rem;animation:fadeIn .8s ease-out}.login-subtitle{color:#6b7280;font-size:1rem;margin:0;animation:fadeIn 1s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.login-form{display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-label{font-size:.875rem;font-weight:600;color:#374151;transition:color .3s ease}.form-input{padding:.875rem 1rem;font-size:1rem;border:2px solid #e5e7eb;border-radius:12px;background-color:#fff;color:#1f2937;transition:all .3s ease;outline:none}.form-input:focus{border-color:#667eea;box-shadow:0 0 0 4px #667eea1a;transform:translateY(-2px)}.form-input:disabled{background-color:#f9fafb;cursor:not-allowed;opacity:.6}.form-input.input-error{border-color:#ef4444}.form-input.input-error:focus{box-shadow:0 0 0 4px #ef44441a}.error-message{color:#ef4444;font-size:.875rem;margin:0;display:flex;align-items:center;gap:.25rem;animation:shake .3s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.forgot-password-container{display:flex;justify-content:flex-end;margin-top:-.5rem}.forgot-password-link{color:#667eea;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .3s ease}.forgot-password-link:hover{color:#764ba2;text-decoration:underline}.alert{padding:1rem;border-radius:12px;display:flex;align-items:flex-start;gap:.75rem;animation:slideDown .4s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.alert-error{background-color:#fef2f2;border:1px solid #fecaca;color:#991b1b}.alert-success{background-color:#f0fdf4;border:1px solid #bbf7d0;color:#166534}.alert-icon{width:1.25rem;height:1.25rem;flex-shrink:0;margin-top:.125rem}.submit-button{padding:1rem 2rem;font-size:1rem;font-weight:600;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 4px 12px #667eea66;margin-top:.5rem}.submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px #667eea80}.submit-button:active:not(:disabled){transform:translateY(0)}.submit-button:disabled{cursor:not-allowed;opacity:.7}.spinner{width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-footer{margin-top:2rem;text-align:center;padding-top:2rem;border-top:1px solid #e5e7eb}.footer-text{color:#6b7280;font-size:.875rem;margin:0}.footer-link{color:#667eea;font-weight:600;text-decoration:none;transition:color .3s ease}.footer-link:hover{color:#764ba2;text-decoration:underline}@media(max-width:640px){.login-card{padding:2rem 1.5rem}.login-title{font-size:2rem}.login-subtitle{font-size:.875rem}}@media(prefers-color-scheme:dark){.login-card{background:#1f2937f2}.login-title{background:linear-gradient(135deg,#818cf8,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-subtitle{color:#9ca3af}.form-label{color:#e5e7eb}.form-input{background-color:#374151;border-color:#4b5563;color:#f9fafb}.form-input:focus{border-color:#818cf8;box-shadow:0 0 0 4px #818cf81a}.footer-text{color:#9ca3af}.login-footer{border-top-color:#4b5563}.forgot-password-link{color:#818cf8}.forgot-password-link:hover{color:#a78bfa}}.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 2px 20px #0000001a;animation:slideDown .5s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-100%)}to{opacity:1;transform:translateY(0)}}.navbar-container{max-width:1200px;margin:0 auto;padding:.5rem 2rem;display:flex;align-items:center;justify-content:space-between}.navbar-brand{display:flex;align-items:center;gap:.625rem;text-decoration:none;transition:transform .3s ease}.navbar-brand:hover{transform:translateY(-2px)}.navbar .logo{display:flex;align-items:center;justify-content:center;transition:transform .3s ease;height:28px!important;width:28px!important;padding:0!important;box-sizing:border-box}.navbar .logo svg{width:28px;height:28px;display:block}.navbar-brand:hover .logo{transform:rotate(5deg) scale(1.05)}.brand-name{font-size:1.125rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.5px}.navbar-actions{display:flex;align-items:center;gap:1rem}.nav-button{padding:.4rem 1rem;font-size:.875rem;font-weight:600;text-decoration:none;border-radius:8px;transition:all .3s ease;cursor:pointer;border:2px solid transparent;display:inline-flex;align-items:center;justify-content:center}.login-button{color:#667eea;background:transparent;border-color:#667eea}.login-button:hover{background:#667eea1a;transform:translateY(-2px);box-shadow:0 4px 12px #667eea33}.signup-button{color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 12px #667eea4d}.signup-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #667eea66}.signup-button:active,.login-button:active{transform:translateY(0)}@media(max-width:640px){.navbar-container{padding:.875rem 1rem}.brand-name{font-size:1.25rem}.logo svg{width:32px;height:32px}.navbar-actions{gap:.5rem}.nav-button{padding:.5rem 1rem;font-size:.875rem}}@media(max-width:480px){.brand-name{font-size:1.125rem}.logo svg{width:28px;height:28px}.nav-button{padding:.5rem .875rem;font-size:.8125rem}}@media(prefers-color-scheme:dark){.navbar{background:#1f2937f2;box-shadow:0 2px 20px #0000004d}.brand-name{background:linear-gradient(135deg,#818cf8,#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-button{color:#818cf8;border-color:#818cf8}.login-button:hover{background:#818cf81a;box-shadow:0 4px 12px #818cf833}.signup-button{background:linear-gradient(135deg,#818cf8,#a78bfa);box-shadow:0 4px 12px #818cf84d}.signup-button:hover{box-shadow:0 6px 20px #818cf866}}html{scroll-padding-top:50px}.user-profile{display:flex;align-items:center;gap:.75rem;padding:.25rem .5rem;border-radius:50px;background:#667eea0d;border:1px solid rgba(102,126,234,.1);transition:all .3s ease}.user-profile:hover{background:#667eea1a;border-color:#667eea33}.user-name{font-size:.9rem;font-weight:600;color:#4a5568}.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.875rem;box-shadow:0 2px 8px #667eea4d}@media(prefers-color-scheme:dark){.user-name{color:#e2e8f0}.user-profile{background:#818cf81a;border-color:#818cf833}.user-avatar{background:linear-gradient(135deg,#818cf8,#a78bfa)}}.logout-button{color:#ef4444;background:transparent;border-color:#ef4444}.logout-button:hover{background:#ef44441a;transform:translateY(-2px);box-shadow:0 4px 12px #ef444433}@media(prefers-color-scheme:dark){.logout-button{color:#f87171;border-color:#f87171}.logout-button:hover{background:#f871711a;box-shadow:0 4px 12px #f8717133}}.chat-interface-wrapper{display:flex;flex-direction:column;height:100vh;background-color:#fff;color:#111827}.chat-main-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 3rem;border-bottom:1px solid #e5e7eb}.page-title{font-size:1.5rem;font-weight:700;margin:0}.new-chat-btn{background:none;border:1px solid #e5e7eb;border-radius:8px;padding:.5rem;cursor:pointer;color:#6b7280;display:flex;align-items:center;justify-content:center;transition:all .2s}.new-chat-btn:hover{background-color:#f3f4f6;color:#111827}.new-chat-btn svg{width:20px;height:20px}.chat-messages-container{flex:1;overflow-y:auto;padding:2rem;display:flex;flex-direction:column;background-color:#fff}.chat-welcome-container{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.chat-welcome-content{max-width:600px;animation:fadeIn .8s ease-out;display:flex;flex-direction:column;align-items:center}.chat-welcome-heading{font-size:3rem;font-weight:800;margin-bottom:1.5rem;color:#111827}.chat-welcome-subtext{font-size:1.125rem;color:#6b7280;margin-bottom:.5rem}.chat-welcome-subtext:last-child{margin-bottom:3rem}.messages-list{max-width:800px;margin:0 auto;width:100%;padding:1rem;display:flex;flex-direction:column;gap:1.5rem}.message-row{display:flex;width:100%;animation:fadeIn .3s ease-out}.message-row.user{justify-content:flex-end}.message-row.assistant{justify-content:flex-start}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.message-content-wrapper{max-width:75%;display:flex;flex-direction:column;gap:.35rem}.message-sender-name{font-size:.75rem;font-weight:500;color:#9ca3af;padding:0 .5rem}.user .message-sender-name{text-align:right}.assistant .message-sender-name{text-align:left}.message-text{padding:.75rem 1.25rem;font-size:.9375rem;line-height:1.5;border-radius:18px;word-wrap:break-word;box-shadow:0 1px 2px #0000000d}.user .message-text{background-color:#2563eb;color:#fff;border-bottom-right-radius:4px}.assistant .message-text{background-color:#f3f4f6;color:#1f2937;border-bottom-left-radius:4px}.typing-indicator{display:flex;gap:4px;padding:4px 8px}.typing-indicator span{width:6px;height:6px;background-color:#9ca3af;border-radius:50%;animation:bounce 1.4s infinite ease-in-out}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input-area{padding:2rem;background-color:#fff;max-width:900px;margin:0 auto;width:100%}.chat-input-container{border:1px solid #e5e7eb;border-radius:20px;padding:1rem;background-color:#fff;box-shadow:0 4px 20px #0000000d;transition:border-color .2s,box-shadow .2s}.chat-input-container:focus-within{border-color:#a78bfa;box-shadow:0 4px 24px #a78bfa26}.input-main-row{display:flex;gap:1rem;align-items:flex-start}.chat-textarea{flex:1;border:none;outline:none;resize:none;padding:.5rem 0;font-size:1rem;font-family:inherit;max-height:200px;background:transparent}.send-button{background:none;border:none;color:#111827;cursor:pointer;padding:.5rem;display:flex;align-items:center;justify-content:center;transition:color .2s}.send-button:disabled{color:#d1d5db;cursor:not-allowed}.send-button svg{width:24px;height:24px}.input-actions-row{display:flex;justify-content:space-between;align-items:center;padding-top:.75rem;border-top:1px solid #f3f4f6;margin-top:.5rem}.left-actions{display:flex;gap:1rem;align-items:center}.model-selector-inline.no-border{border:none;padding:0;margin:0;display:flex;align-items:center;gap:.5rem}.model-label{font-size:.75rem;font-weight:600;color:#9ca3af;text-transform:uppercase}.inline-model-select{background:none;border:none;color:#6b7280;font-size:.875rem;font-weight:500;cursor:pointer;outline:none}.right-info{color:#9ca3af;font-size:.75rem;font-weight:500}.input-footer-note{text-align:center;color:#9ca3af;font-size:.75rem;margin-top:1rem}.chat-messages-container::-webkit-scrollbar{width:6px}.chat-messages-container::-webkit-scrollbar-track{background:transparent}.chat-messages-container::-webkit-scrollbar-thumb{background:#e5e7eb;border-radius:10px}.chat-messages-container::-webkit-scrollbar-thumb:hover{background:#d1d5db}.home-wrapper.with-sidebar{display:flex;background-color:#fff;height:100vh;overflow:hidden}.home-container{flex:1;height:100vh;background-color:#fff;position:relative;overflow:hidden;transition:margin-left .3s ease}.home-wrapper.with-sidebar .home-container{margin-left:280px;padding-top:0;height:100vh;display:flex;flex-direction:column}.chat-section{flex:1;display:flex;flex-direction:column;overflow:hidden}.home-wrapper:not(.with-sidebar) .home-container{background:linear-gradient(135deg,#667eea,#764ba2);padding-top:80px}.welcome-banner{position:fixed;top:0;left:0;right:0;z-index:1000;background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 4px 12px #00000026;animation:slideInDown .5s ease-out}@keyframes slideInDown{0%{transform:translateY(-100%)}to{transform:translateY(0)}}.welcome-content{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;align-items:center;gap:.75rem;color:#fff;font-size:1rem;font-weight:500}.welcome-icon{width:1.5rem;height:1.5rem;flex-shrink:0}.close-button{margin-left:auto;background:transparent;border:none;color:#fff;cursor:pointer;padding:.25rem;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background-color .3s ease}.close-button:hover{background-color:#fff3}.close-button svg{width:1.25rem;height:1.25rem}.hero-section{min-height:calc(100vh - 80px);display:flex;align-items:center;justify-content:center;padding:2rem;position:relative;overflow:hidden}.hero-section:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);background-size:50px 50px;animation:backgroundMove 20s linear infinite}@keyframes backgroundMove{0%{transform:translate(0)}to{transform:translate(50px,50px)}}.hero-content{max-width:800px;text-align:center;position:relative;z-index:1;animation:fadeInUp 1s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.hero-title{font-size:4rem;font-weight:800;color:#fff;margin:0 0 1.5rem;line-height:1.2}.brand-name{background:linear-gradient(135deg,#fbbf24,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:#ffffffe6;margin:0 0 3rem;line-height:1.6}.welcome-title{font-size:3.5rem;font-weight:800;color:#fff;margin:0 0 1rem;line-height:1.2;animation:fadeInUp .8s ease-out}.welcome-subtitle{font-size:1.5rem;color:#ffffffe6;margin:0 0 2rem;animation:fadeInUp 1s ease-out}.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.primary-button{padding:1rem 2.5rem;font-size:1.125rem;font-weight:600;color:#667eea;background:#fff;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #00000026}.primary-button:hover{transform:translateY(-2px);box-shadow:0 8px 20px #0003}.secondary-button{padding:1rem 2.5rem;font-size:1.125rem;font-weight:600;color:#fff;background:#fff3;border:2px solid white;border-radius:12px;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.secondary-button:hover{background:#ffffff4d;transform:translateY(-2px)}.hero-decoration{position:absolute;width:100%;height:100%;pointer-events:none}.floating-card{position:absolute;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:16px;padding:1.5rem;box-shadow:0 10px 30px #0003;display:flex;align-items:center;gap:1rem;animation:float 6s ease-in-out infinite}.card-1{top:15%;left:10%;animation-delay:0s}.card-2{top:60%;right:10%;animation-delay:2s}.card-3{bottom:15%;left:15%;animation-delay:4s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.card-icon{font-size:2.5rem}.card-title{font-size:1.125rem;font-weight:700;color:#1f2937;margin-bottom:.25rem}.card-subtitle{font-size:.875rem;color:#6b7280}.features-section{background:#fff;padding:5rem 2rem;position:relative;z-index:1}.section-title{text-align:center;font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin:0 0 3rem}.features-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature-card{background:linear-gradient(135deg,#f9fafb,#fff);border-radius:16px;padding:2rem;text-align:center;transition:all .3s ease;border:2px solid transparent}.feature-card:hover{transform:translateY(-8px);border-color:#667eea;box-shadow:0 12px 24px #667eea26}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-title{font-size:1.25rem;font-weight:700;color:#1f2937;margin:0 0 .75rem}.feature-description{font-size:.9375rem;color:#6b7280;line-height:1.6;margin:0}.home-footer{background:#0003;padding:2rem;text-align:center;color:#fff;font-size:.9375rem}.home-footer p{margin:0}.footer-link{color:#fbbf24;font-weight:600;text-decoration:none;transition:color .3s ease}.footer-link:hover{color:#f59e0b;text-decoration:underline}@media(max-width:1024px){.floating-card{display:none}}@media(max-width:768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1rem}.hero-actions{flex-direction:column;align-items:stretch}.section-title{font-size:2rem}.features-grid{grid-template-columns:1fr}}@media(max-width:640px){.hero-title{font-size:2rem}.welcome-content{padding:1rem;font-size:.875rem}}.sidebar{width:280px;height:100vh;background-color:#f8f9fb;border-right:1px solid #e5e7eb;display:flex;flex-direction:column;padding:1.5rem;position:fixed;left:0;top:0;z-index:100;overflow:hidden}.sidebar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-shrink:0}.logo-container{display:flex;align-items:center;gap:.75rem}.logo-icon{width:32px;height:32px}.logo-text{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.sidebar-nav{display:flex;flex-direction:column;gap:.25rem;flex:1;overflow-y:auto;margin-bottom:1rem}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:#e5e7eb;border-radius:10px}.sidebar-section{margin-bottom:1.5rem}.new-chat-sidebar-btn{width:100%;display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;background-color:#fff;border:1px solid #e5e7eb;border-radius:10px;color:#374151;font-size:.875rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 1px 2px #0000000d}.new-chat-sidebar-btn:hover{background-color:#f3f4f6;border-color:#d1d5db}.new-chat-sidebar-btn svg{width:18px;height:18px}.sidebar-section-title{margin-bottom:.75rem;padding-left:.75rem;font-size:.75rem;font-weight:700;color:#9ca3af;text-transform:uppercase;letter-spacing:.05em}.chats-list{display:flex;flex-direction:column;gap:.25rem;padding-bottom:2rem}.chat-item{width:100%;display:flex;align-items:center;gap:.75rem;padding:.625rem .75rem;background:none;border:none;border-radius:8px;color:#4b5563;font-size:.875rem;font-weight:500;cursor:pointer;text-align:left;transition:all .2s}.chat-item:hover{background-color:#f3f4f6;color:#111827}.chat-item.active{background-color:#eff6ff;color:#2563eb}.chat-icon{width:16px;height:16px;flex-shrink:0}.chat-info{flex:1;min-width:0}.chat-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}.sidebar-loading,.no-chats{padding:1rem .75rem;font-size:.8125rem;color:#9ca3af;text-align:center}.see-more-btn{width:calc(100% - 1.5rem);margin:.75rem auto;display:block;background-color:#f3f4f6;border:1px solid #e5e7eb;padding:.625rem;color:#2563eb;border-radius:8px;font-size:.8125rem;font-weight:600;cursor:pointer;transition:all .2s;text-align:center}.see-more-btn:hover{background-color:#ebf2ff;border-color:#bfdbfe;color:#1d4ed8}.see-more-btn:disabled{color:#9ca3af;cursor:not-allowed;text-decoration:none}.sidebar-footer{margin-top:auto;padding-top:1.5rem;border-top:1px solid #e5e7eb;flex-shrink:0;background-color:#f8f9fb}.user-profile{display:flex;align-items:center;gap:.75rem;width:100%}.user-avatar-circle{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.875rem;flex-shrink:0}.user-info{display:flex;flex-direction:column;overflow:hidden;flex:1;min-width:0}.user-name{font-size:.875rem;font-weight:600;color:#111827;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-email{font-size:.75rem;color:#6b7280;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.logout-icon-btn{background:none;border:none;color:#9ca3af;cursor:pointer;padding:.25rem;display:flex;align-items:center;justify-content:center;transition:color .2s;flex-shrink:0}.logout-icon-btn:hover{color:#ef4444}.logout-icon-btn svg{width:18px;height:18px}.pricing-container{padding:2rem;max-width:1200px;margin:80px auto 2rem;color:#fff;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;box-shadow:0 8px 32px #0003}.pricing-title{text-align:center;font-size:2.5rem;margin-bottom:1.5rem;font-family:Inter,sans-serif;color:#f0f0f0}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.pricing-card{background:#ffffff1a;border-radius:10px;padding:1.5rem;text-align:center;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .3s ease,box-shadow .3s ease}.pricing-card:hover{transform:translateY(-5px);box-shadow:0 12px 24px #0000004d}.product-name{font-size:1.4rem;font-weight:600;margin-bottom:.5rem;color:#e0e0e0}.product-description{font-size:.9rem;margin-bottom:1rem;color:#d0d0d0}.product-price{font-size:1.2rem;font-weight:700;margin-bottom:1rem;color:#fff}.buy-button{background:#ff5c5c;color:#fff;border:none;padding:.6rem 1.2rem;border-radius:6px;cursor:pointer;font-size:1rem;transition:background .3s ease}.buy-button:hover{background:#e04e4e}.pricing-loading,.pricing-error{text-align:center;font-size:1.2rem;color:#fff;margin-top:100px}*{box-sizing:border-box}#root{width:100%;height:100vh;margin:0;padding:0;overflow:hidden}body{margin:0;padding:0;height:100vh;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}