@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap";:root{--bg-color: #1E1F22;--sidebar-bg: #2B2D31;--chat-bg: #313338;--border-color: #3A3C40;--text-color: #DBDEE1;--text-muted: #949BA4;--accent-color: #4A90E2;--hover-bg: #3A3C40;--danger-color: #f04747}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background-color:var(--bg-color);color:var(--text-color);overflow:hidden}.app-layout{display:flex;height:100vh}.sidebar{width:320px;flex-shrink:0;background-color:var(--sidebar-bg);display:flex;flex-direction:column;padding:20px;border-right:1px solid var(--border-color);transition:width .3s ease}.chat-area{flex-grow:1;display:flex;flex-direction:column;background-color:var(--chat-bg)}.user-panel{padding-bottom:20px;margin-bottom:10px;border-bottom:1px solid 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ease}.drop-zone:hover{background-color:var(--hover-bg)}.drop-zone i{font-size:2rem;margin-bottom:10px}.upload-button{background-color:var(--accent-color);color:#fff;padding:10px 15px;border-radius:5px;cursor:pointer;display:inline-block;margin-top:10px;transition:background-color .2s ease}.upload-button:hover{background-color:#3a7bd5}.file-list{display:flex;flex-direction:column;gap:10px;margin-top:20px}.file-item{display:flex;align-items:center;background-color:var(--bg-color);padding:10px;border-radius:5px;justify-content:space-between}.file-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:10px}.delete-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1.1rem;transition:color .2s ease}.delete-btn:hover{color:var(--danger-color)}.chat-messages{flex-grow:1;overflow-y:auto;overflow-x:hidden;padding:20px;display:flex;flex-direction:column;gap:20px}.chat-messages::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-track{background:var(--chat-bg)}.chat-messages::-webkit-scrollbar-thumb{background-color:var(--sidebar-bg);border-radius:10px;border:2px solid var(--chat-bg)}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);text-align:center}.welcome-screen .logo{font-size:3rem;margin-bottom:1rem}.welcome-screen h2{color:var(--accent-color);margin-bottom:.5rem}.welcome-screen .UserName{color:var(--accent-color);margin-bottom:1.5rem}.chat-input-container{padding:20px}.chat-input-form{display:flex;background-color:var(--sidebar-bg);padding:8px;border-radius:8px;border:1px solid var(--sidebar-bg);transition:border-color .2s ease}.chat-input-form:focus-within{border-color:var(--accent-color)}.chat-input-form input{flex-grow:1;background:none;border:none;color:var(--text-color);font-size:1rem;outline:none;padding:10px}.chat-input-form button{background-color:var(--accent-color);border:none;color:#fff;width:40px;height:40px;border-radius:5px;cursor:pointer;font-size:1rem;transition:background-color .2s ease}.chat-input-form button:hover{background-color:#3a7bd5}.message{display:flex;align-items:flex-start;gap:15px;max-width:80%;padding:12px 16px;border-radius:12px;line-height:1.6;font-size:.95rem;overflow-wrap:break-word;word-break:break-word;min-width:0}.avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-weight:500}.bot-message{align-self:flex-start;background-color:var(--sidebar-bg)}.bot-message 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