@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-color:#f8f9fa;--surface-color:#fff;--surface-hover:#f1f3f5;--border-color:#e9ecef;--text-primary:#212529;--text-secondary:#6c757d;--accent-color:red;--accent-hover:#c00;--accent-glow:#ff00001a;--ai-msg-bg:#f8f9fa;--user-msg-bg:red;--font-family:"Inter", system-ui, sans-serif;--border-radius:12px;--shadow-sm:0 1px 3px #0000001f, 0 1px 2px #0000003d;--shadow-lg:0 10px 20px #00000014, 0 6px 6px #0000001a}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0}*{box-sizing:border-box}#root{flex-direction:column;width:100%;min-height:100vh;display:flex}.website-container{flex-direction:column;min-height:100vh;display:flex}.navbar{background-color:var(--surface-color);box-shadow:var(--shadow-sm);z-index:100;justify-content:space-between;align-items:center;padding:16px 40px;display:flex;position:sticky;top:0}.nav-brand{cursor:pointer;align-items:center;gap:12px;display:flex}.nav-brand h1{background:linear-gradient(90deg,red,#ff4d4d);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin:0;font-size:20px;font-weight:700}.nav-links{gap:32px;display:flex}.nav-links a{color:var(--text-primary);font-size:15px;font-weight:500;text-decoration:none;transition:color .2s}.nav-links a:hover{color:var(--accent-color)}.logout-btn{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:8px;align-items:center;gap:6px;padding:8px 12px;display:inline-flex}.logout-btn:hover{color:var(--accent-color);border-color:var(--accent-color)}.auth-page{background:radial-gradient(circle at top right, #ff00001f, transparent 34%), var(--bg-color);place-items:center;min-height:100vh;padding:24px;display:grid}.auth-panel{background:var(--surface-color);border:1px solid var(--border-color);border-radius:var(--border-radius);width:min(100%,430px);box-shadow:var(--shadow-lg);padding:40px;animation:.45s ease-out both slideUp}.auth-brand{color:var(--accent-color);align-items:center;gap:10px;font-weight:700;display:flex}.auth-heading{margin:44px 0 28px}.auth-heading h1{margin:8px 0;font-size:32px}.auth-heading p:last-child{color:var(--text-secondary);margin:0;line-height:1.5}.eyebrow{color:var(--accent-color);letter-spacing:.08em;text-transform:uppercase;margin:0;font-size:12px;font-weight:700}.auth-form{gap:18px;display:grid}.auth-form label{gap:8px;font-size:14px;font-weight:600;display:grid}.auth-form input{border:1px solid var(--border-color);width:100%;color:var(--text-primary);background:var(--surface-color);font:inherit;border-radius:8px;padding:13px 14px}.auth-form input:focus{outline:2px solid var(--accent-glow);border-color:var(--accent-color)}.auth-error{color:#b42318;margin:-4px 0 0;font-size:13px}.auth-submit{color:#fff;background:var(--accent-color);font:inherit;cursor:pointer;border:0;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:13px 16px;font-weight:700;display:inline-flex}.auth-submit:hover{background:var(--accent-hover)}.auth-submit:disabled{cursor:wait;opacity:.65}.auth-switch{width:100%;color:var(--text-secondary);cursor:pointer;background:0 0;border:0;margin-top:22px}.auth-switch:hover{color:var(--accent-color)}.main-content{background-color:var(--bg-color);flex:1;justify-content:center;padding:40px 20px;display:flex}.app-wrapper{background-color:var(--surface-color);border-radius:var(--border-radius);width:100%;max-width:800px;height:700px;box-shadow:var(--shadow-lg);border:1px solid var(--border-color);flex-direction:column;margin:0 auto;animation:.6s cubic-bezier(.16,1,.3,1) both slideUp;display:flex;position:relative;overflow:hidden}.app-header{background-color:var(--surface-color);border-bottom:1px solid var(--border-color);align-items:center;gap:12px;padding:16px 20px;display:flex}.app-header h2{color:var(--text-primary);flex:1;margin:0;font-size:16px;font-weight:600}.header-icon{color:var(--accent-color)}.icon-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;padding:8px;transition:background-color .2s,color .2s;display:flex}.icon-btn:hover{background-color:var(--surface-hover);color:var(--text-primary)}.sidebar-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:10;background:#0003;animation:.2s ease-out fadeIn;position:absolute;inset:0}.sidebar{background-color:var(--surface-color);z-index:20;border-right:1px solid var(--border-color);width:300px;box-shadow:var(--shadow-lg);flex-direction:column;transition:transform .3s cubic-bezier(.4,0,.2,1);display:flex;position:absolute;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding:16px 20px;display:flex}.sidebar-header h3{color:var(--text-primary);margin:0;font-size:16px}.new-chat-btn{border:1px solid var(--border-color);color:var(--text-primary);border-radius:var(--border-radius);cursor:pointer;background-color:#0000;justify-content:center;align-items:center;gap:8px;margin:16px;padding:12px;font-weight:600;transition:all .2s;display:flex}.new-chat-btn:hover{background-color:var(--surface-hover);border-color:var(--text-secondary)}.history-list{flex-direction:column;flex:1;gap:8px;padding:0 16px 16px;display:flex;overflow-y:auto}.history-list::-webkit-scrollbar{width:4px}.history-list::-webkit-scrollbar-thumb{background-color:var(--border-color);border-radius:4px}.empty-history{color:var(--text-secondary);text-align:center;margin-top:20px;font-size:14px}.history-item{cursor:pointer;color:var(--text-primary);border-radius:8px;align-items:center;gap:12px;padding:12px;transition:background-color .2s;display:flex}.history-item:hover{background-color:var(--surface-hover)}.history-item.active{background-color:var(--accent-glow);color:var(--accent-color)}.history-icon{flex-shrink:0}.history-url{white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.chat-container{flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.chat-box{scroll-behavior:smooth;flex-direction:column;flex:1;gap:20px;padding:24px;display:flex;overflow-y:auto}.chat-box::-webkit-scrollbar{width:6px}.chat-box::-webkit-scrollbar-track{background:0 0}.chat-box::-webkit-scrollbar-thumb{background-color:var(--border-color);border-radius:10px}.empty-state{text-align:center;color:var(--text-secondary);flex-direction:column;align-items:center;gap:16px;margin:auto;animation:.5s ease-out fadeIn;display:flex}.empty-state h3{color:var(--text-primary);margin:0;font-size:20px}.message{gap:12px;max-width:80%;animation:.3s ease-out fadeIn;display:flex}.message.user{flex-direction:row-reverse;align-self:flex-end}.message.assistant{align-self:flex-start}.message-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.message.user .message-avatar{background-color:var(--accent-glow);color:var(--accent-color)}.message.assistant .message-avatar{background-color:var(--surface-hover);border:1px solid var(--border-color);color:var(--text-primary)}.message-content{word-wrap:break-word;border-radius:18px;padding:14px 18px;font-size:15px;line-height:1.5}.message.user .message-content{background-color:var(--accent-color);color:#fff;border-top-right-radius:4px}.message.assistant .message-content{background-color:var(--ai-msg-bg);border:1px solid var(--border-color);color:var(--text-primary);border-top-left-radius:4px}.input-area{background-color:var(--surface-color);border-top:1px solid var(--border-color);flex-direction:column;gap:16px;padding:20px;display:flex}.input-group{background-color:var(--bg-color);border:1px solid var(--border-color);border-radius:var(--border-radius);align-items:center;padding:10px 16px;transition:all .2s;display:flex}.input-group:focus-within{border-color:var(--accent-color);box-shadow:0 0 0 3px var(--accent-glow);background-color:var(--surface-color)}.input-icon{color:var(--text-secondary);margin-right:12px}.input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:15px}.input::placeholder{color:var(--text-secondary)}.send-btn{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;margin-left:12px;transition:all .2s;display:flex}.send-btn:hover:not(:disabled){background-color:var(--accent-hover);transform:scale(1.05)}.send-btn:active:not(:disabled){transform:scale(.95)}.send-btn:disabled{background-color:var(--border-color);color:var(--text-secondary);cursor:not-allowed}.typing-indicator{background-color:var(--ai-msg-bg);border:1px solid var(--border-color);border-radius:4px 18px 18px;align-self:flex-start;gap:6px;width:fit-content;padding:16px 20px;display:flex}.typing-dot{background-color:var(--text-secondary);border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite both typing}.typing-dot:first-child{animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.footer{background-color:var(--surface-color);border-top:1px solid var(--border-color);text-align:center;color:var(--text-secondary);justify-content:space-between;align-items:center;padding:32px 40px;font-size:14px;display:flex}.footer strong{color:var(--text-primary);font-weight:700}.footer-links{gap:24px;display:flex}.footer-links a{color:var(--text-secondary);text-decoration:none;transition:color .2s}.footer-links a:hover{color:var(--accent-color)}.info-section{width:100%;max-width:1000px;margin:0 auto;animation:.4s ease-out fadeIn}.section-title{color:var(--text-primary);text-align:center;margin-bottom:40px;font-size:32px;font-weight:700}.features-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;display:grid}.feature-card{background-color:var(--surface-color);border-radius:var(--border-radius);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);text-align:center;padding:32px 24px;transition:transform .2s,box-shadow .2s}.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-5px)}.feature-icon{color:var(--accent-color);margin-bottom:16px}.feature-card h3{color:var(--text-primary);margin:0 0 12px;font-size:20px}.feature-card p{color:var(--text-secondary);margin:0;line-height:1.5}.about-content{background-color:var(--surface-color);border-radius:var(--border-radius);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);text-align:center;max-width:800px;margin:0 auto;padding:40px}.about-content p{color:var(--text-secondary);margin-bottom:24px;font-size:16px;line-height:1.6}.primary-btn{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:12px 24px;font-size:16px;font-weight:600;transition:background-color .2s}.primary-btn:hover{background-color:var(--accent-hover)}.active-link{color:var(--accent-color)!important;font-weight:700!important}.message-content p{margin:0 0 8px}.message-content p:last-child{margin-bottom:0}.message-content ul,.message-content ol{margin:8px 0;padding-left:20px}.message-content li{margin-bottom:4px;line-height:1.5}.message-content strong{font-weight:700}.message-content code{background-color:#00000014;border-radius:4px;padding:2px 6px;font-family:monospace;font-size:13px}.message-content h1,.message-content h2,.message-content h3{margin:8px 0 4px;font-size:15px;font-weight:700}@media (width<=768px){.navbar{flex-wrap:wrap;gap:12px;padding:14px 20px}.nav-brand h1{font-size:17px}.nav-links{flex-wrap:wrap;justify-content:center;gap:18px;width:100%}.main-content{padding:16px 12px}.app-wrapper{border-radius:10px;height:calc(100dvh - 32px);min-height:560px}.sidebar{width:min(300px,100% - 24px)}.chat-box{gap:14px;padding:18px 14px}.message{max-width:94%}.message-content{min-width:0;padding:12px 14px;font-size:14px}.input-area{gap:10px;padding:14px}.input-group{padding:9px 12px}.footer{text-align:center;flex-direction:column;gap:16px;padding:24px 20px}}@media (width<=480px){.navbar{padding:12px 14px}.nav-brand{justify-content:center;width:100%}.nav-links{gap:12px;font-size:13px}.logout-btn{padding:6px 9px;font-size:13px}.auth-page{place-items:start center;padding:14px}.auth-panel{margin-top:8vh;padding:28px 20px}.auth-heading{margin:32px 0 22px}.auth-heading h1{font-size:27px}.app-wrapper{height:calc(100dvh - 24px);min-height:500px}.app-header{gap:8px;padding:12px 14px}.app-header h2{font-size:15px}.chat-box{padding:14px 10px}.message{gap:8px;max-width:100%}.message-avatar{width:30px;height:30px}.input-area{padding:10px}.input-area>div:last-child{align-items:stretch}.send-btn{flex-shrink:0;width:42px;height:42px}.empty-state p{margin:0;font-size:14px;line-height:1.5}}