.chat-container{background:linear-gradient(135deg,#f0f9ff 0%,#e0f7fa 50%,#e3f2fd 100%);min-height:80%;font-family:Segoe UI,system-ui,-apple-system,sans-serif;display:flex;overflow:hidden}.chat-layout{width:100%;display:flex}.main-content{flex-direction:column;flex:1;height:100vh;display:flex;position:relative;overflow:hidden}.messages-container{scroll-behavior:smooth;flex-direction:column;flex:1;gap:1.5rem;padding:2rem;display:flex;overflow-y:auto}.messages-container::-webkit-scrollbar{width:8px}.messages-container::-webkit-scrollbar-track{background:#06b6d40d;border-radius:4px}.messages-container::-webkit-scrollbar-thumb{background:linear-gradient(135deg,#22c55e,#06b6d4);border-radius:4px;transition:all .3s}.messages-container::-webkit-scrollbar-thumb:hover{background:linear-gradient(135deg,#16a34a,#0891b2)}.message-bubble{word-wrap:break-word;overflow-wrap:break-word;border-radius:24px;max-width:85%;padding:1.25rem 1.5rem;line-height:1.6;animation:.3s ease-out forwards messageSlide;position:relative;box-shadow:0 4px 20px #0000000d}@keyframes messageSlide{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.message-bubble.user{color:#fff;background:linear-gradient(135deg,#0d9488 0%,#0891b2 100%);border-bottom-right-radius:8px;align-self:flex-end;margin-left:auto}.message-bubble.user:before{content:"";clip-path:polygon(0 0,100% 0,0 100%);background:linear-gradient(135deg,#0d9488 0%,#0891b2 100%);width:16px;height:16px;position:absolute;bottom:0;right:-8px}.message-bubble.assistant{color:#1e293b;background:#fff;border:1px solid #06b6d426;border-bottom-left-radius:8px;align-self:flex-start;margin-right:auto}.message-bubble.assistant:before{content:"";clip-path:polygon(100% 0,0 0,100% 100%);background:#fff;border-bottom:1px solid #06b6d426;border-left:1px solid #06b6d426;width:16px;height:16px;position:absolute;bottom:0;left:-8px}.message-bubble.assistant.thinking{background:linear-gradient(90deg,#ffffffe6 0%,#fffffff2 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.message-timestamp{color:#64748b}.typing-indicator{gap:.5rem;margin-top:1rem;padding-left:.5rem;display:flex}.typing-dot{background:linear-gradient(135deg,#22c55e,#06b6d4);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{opacity:.5;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.input-container{z-index:10;background:#fffffff2;border-top:1px solid #06b6d433;padding:1.5rem 2rem;position:relative}.input-wrapper{align-items:flex-end;gap:1rem;max-width:1200px;margin:0 auto;display:flex}.input-textarea{color:#1e293b;resize:none;background:#fff;border:2px solid #06b6d433;border-radius:20px;flex:1;min-height:56px;max-height:200px;padding:1rem 1.5rem;font-family:inherit;font-size:1rem;line-height:1.6;transition:all .3s;box-shadow:0 2px 10px #06b6d41a}.input-textarea:focus{border-color:#22c55e;outline:none;box-shadow:0 0 0 4px #22c55e1a}.input-textarea::placeholder{color:#94a3b8;font-style:italic}.input-textarea:disabled{cursor:not-allowed;opacity:.7;background:#06b6d40d}.send-button{color:#fff;cursor:pointer;background:linear-gradient(135deg,#22c55e 0%,#0d9488 100%);border:none;border-radius:20px;justify-content:center;align-items:center;min-width:100px;height:56px;padding:1rem 2.5rem;font-weight:600;transition:all .3s;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 15px #22c55e4d}.send-button:before{content:"";background:linear-gradient(90deg,#0000,#fff3,#0000);width:100%;height:100%;transition:left .5s;position:absolute;top:0;left:-100%}.send-button:hover:not(:disabled):before{left:100%}.send-button:hover:not(:disabled){background:linear-gradient(135deg,#16a34a 0%,#0d9488 100%);transform:translateY(-2px);box-shadow:0 6px 25px #22c55e66}.send-button:active:not(:disabled){transform:translateY(0)}.send-button:disabled{opacity:.6;cursor:not-allowed;transform:none!important}.send-button.loading{background:linear-gradient(135deg,#0d9488 0% 100%)}.send-button.loading:after{content:"";border:3px solid #0000;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:1s linear infinite spin;position:absolute}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.empty-state{text-align:center;color:#64748b;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:4rem 2rem;display:flex}.empty-state-icon{opacity:.7;margin-bottom:2rem;font-size:4rem;animation:3s ease-in-out infinite float}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.empty-state h3{color:#0f766e;margin-bottom:1rem;font-size:1.75rem;font-weight:700}.empty-state p{max-width:500px;font-size:1.1rem;line-height:1.6}.chat-container:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(circle at 20% 80%,#06b6d41a 0%,#0000 50%),radial-gradient(circle at 80% 20%,#22c55e1a 0%,#0000 50%);position:fixed;inset:0}.main-content{z-index:1;position:relative}@media (max-width:768px){.chat-container{height:100vh}.main-content{height:100%}.messages-container{gap:1rem;padding:1rem}.message-bubble{max-width:90%;padding:1rem 1.25rem}.input-container{padding:1rem}.input-wrapper{gap:.75rem}.input-textarea{padding:.875rem 1.25rem;font-size:.95rem}.send-button{min-width:80px;padding:.875rem 1.5rem}.empty-state{padding:2rem 1rem}.empty-state-icon{font-size:3rem}.empty-state h3{font-size:1.5rem}.empty-state p{font-size:1rem}}@media (max-width:480px){.message-bubble{max-width:95%;padding:.875rem 1rem}.input-textarea{min-height:50px;padding:.75rem 1rem}.send-button{height:50px;padding:.75rem 1rem;font-size:.9rem}.message-content{font-size:.95rem}}.chat-container *{transition:background-color .3s,border-color .3s}:focus-visible{outline-offset:2px;outline:2px solid #22c55e}.loading-skeleton{background:linear-gradient(90deg,#f0f9ff 25%,#e0f7fa 50%,#f0f9ff 75%) 0 0/200% 100%;border-radius:12px;animation:1.5s infinite skeleton-loading}@keyframes skeleton-loading{0%{background-position:-200px 0}to{background-position:calc(200px + 100%) 0}}