: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;display:flex;place-items:center;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}}:root{--bg-color: #0a0a0a;--input-bg: #2b2b2b;--text-primary: #ffffff;--text-secondary: #a0a0a0;--accent-red: #d32f2f;--accent-red-hover: #b71c1c}body{margin:0;padding:0;background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;overflow:hidden}.app-container{height:100vh;width:100vw;display:flex;flex-direction:column;background:radial-gradient(circle at 50% 120%,#4a0f0f 0%,var(--bg-color) 60%);overflow:hidden}.header{padding:20px 40px;display:flex;align-items:center;justify-content:space-between}.logo-text-img{height:20px}.header-left{display:flex;align-items:center;gap:12px}.header-right{display:flex;align-items:center}.language-switch{display:flex;align-items:center;gap:8px}.lang-label{font-size:.9rem;color:var(--text-secondary);font-weight:500;transition:color .3s}.lang-label.active{color:var(--text-primary);font-weight:700}.switch{position:relative;display:inline-block;width:48px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:#333;transition:.4s}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:.4s}input:checked+.slider{background-color:var(--accent-red)}input:focus+.slider{box-shadow:0 0 1px var(--accent-red)}input:checked+.slider:before{transform:translate(24px)}.slider.round{border-radius:24px}.slider.round:before{border-radius:50%}.landing-container{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding-bottom:100px}.landing-content{text-align:center;max-width:600px;width:100%}.big-logo{width:80px;height:80px;margin-bottom:24px}.landing-title{font-size:2.5rem;margin-bottom:12px;font-weight:500}.landing-subtitle{color:var(--text-secondary);margin-bottom:40px;font-size:1rem}.input-wrapper{background-color:var(--input-bg);border-radius:12px;padding:8px 8px 8px 20px;display:flex;align-items:center;border:1px solid #333;transition:border-color .2s;width:100%;box-sizing:border-box}.input-wrapper:focus-within{border-color:var(--accent-red)}.main-input{background:transparent;border:none;color:#fff;flex:1;font-size:1rem;outline:none;padding:10px 0}.send-btn{background-color:var(--accent-red);border:none;border-radius:8px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s}.send-btn:hover{background-color:var(--accent-red-hover)}.send-btn:disabled{opacity:.5;cursor:not-allowed}.send-arrow-icon{width:20px;height:20px}.chat-container{flex:1;display:flex;flex-direction:column;max-width:900px;width:100%;margin:0 auto;padding:20px;box-sizing:border-box;height:calc(100vh - 80px);overflow:hidden}.chat-history{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:24px;padding-bottom:20px;padding-right:10px}.chat-history::-webkit-scrollbar{width:8px}.chat-history::-webkit-scrollbar-track{background:#ffffff0d;border-radius:4px}.chat-history::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}.chat-history::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.message-row{display:flex;gap:16px;max-width:80%}.message-row.user{align-self:flex-end;flex-direction:row-reverse}.message-row.bot{align-self:flex-start}.bubble{padding:16px 20px;border-radius:16px;line-height:1.5;font-size:.95rem}.bubble.user{background-color:var(--input-bg);border-radius:16px 16px 0}.bubble.bot{background-color:transparent;color:var(--text-primary);text-align:left;max-width:800px;line-height:1.6}.bubble.bot h1,.bubble.bot h2,.bubble.bot h3{margin-top:1.5em;margin-bottom:.5em;font-weight:600;color:#fff}.bubble.bot h1{font-size:1.5em;border-bottom:1px solid #333;padding-bottom:.3em}.bubble.bot h2{font-size:1.3em}.bubble.bot h3{font-size:1.1em}.bubble.bot p{margin-bottom:1em}.bubble.bot ul,.bubble.bot ol{margin-bottom:1em;padding-left:1.5em}.bubble.bot li{margin-bottom:.5em}.bubble.bot strong{color:#fff;font-weight:700}.bubble.bot blockquote{border-left:4px solid var(--accent-red);margin:1em 0;color:var(--text-secondary);background:#ffffff0d;padding:.5em 1em;border-radius:4px}.chat-footer{padding-top:20px}.module-cards{display:flex;gap:2rem;margin-top:2rem;flex-wrap:wrap;justify-content:center}.module-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:2rem;width:240px;cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;text-align:center}.module-card:hover{background:#ffffff1a;transform:translateY(-5px);border-color:var(--accent-red);box-shadow:0 10px 30px #0000004d}.card-icon{color:var(--accent-red);margin-bottom:1rem}.module-card h3{margin:0 0 .5rem;font-size:1.2rem;color:var(--text-primary)}.module-card p{margin:0;font-size:.9rem;color:var(--text-secondary);line-height:1.4}.module-tabs{display:flex;background:#ffffff0d;border-radius:8px;padding:4px;gap:4px}.module-tab{background:transparent;border:none;color:var(--text-secondary);padding:8px 16px;border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:500;transition:all .2s}.module-tab:hover{color:var(--text-primary)}.module-tab.active{background:var(--accent-red);color:#fff;font-weight:600}.upload-btn{background:transparent;border:none;color:var(--text-secondary);cursor:pointer;padding:0 10px;display:flex;align-items:center;justify-content:center;transition:color .2s}.upload-btn:hover{color:var(--text-primary)}.file-attachment{background:#ffffff1a;padding:8px 12px;border-radius:4px;margin-top:8px;font-size:.9rem;display:inline-block}