.chat-container{height:100%;overflow:hidden;display:flex;flex-direction:column;position:relative}.chat-messages{flex:1;overflow-y:auto;min-height:0;padding-bottom:0!important;margin-bottom:0!important;scroll-behavior:smooth}.chat-input-container{flex-shrink:0;padding-bottom:0!important;margin-bottom:0!important;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid rgba(229,231,235,.5)}.dark .chat-input-container{background:#111827f2;border-top:1px solid rgba(75,85,99,.5)}.message-item:last-child{margin-bottom:0!important;padding-bottom:0!important}.message-list>*:last-child{margin-bottom:0!important;padding-bottom:0!important}.chat-window{height:100vh;max-height:100vh;overflow:hidden}@media (max-width: 640px){.chat-mobile-full{width:100vw!important;height:100vh!important;top:0!important;left:0!important;right:0!important;bottom:0!important;border-radius:0!important;max-width:none!important;max-height:none!important}.chat-container{border-radius:0}.chat-messages,.chat-input-container{padding:.75rem}.message-bubble{max-width:85%!important;font-size:.875rem;line-height:1.4}.message-avatar{width:2rem!important;height:2rem!important}.message-actions{scale:.9}}@media (min-width: 641px) and (max-width: 1024px){.chat-messages,.chat-input-container{padding:1rem}.message-bubble{max-width:75%}}@media (min-width: 1025px){.chat-messages,.chat-input-container{padding:1.5rem}.message-bubble{max-width:70%}}.custom-scrollbar::-webkit-scrollbar{width:6px}.custom-scrollbar::-webkit-scrollbar-track{background:transparent}.custom-scrollbar::-webkit-scrollbar-thumb{background:#9ca3af66;border-radius:10px;-webkit-transition:background .2s ease;transition:background .2s ease}.custom-scrollbar::-webkit-scrollbar-thumb:hover{background:#9ca3af99}.dark .custom-scrollbar::-webkit-scrollbar-thumb{background:#4b556366}.dark .custom-scrollbar::-webkit-scrollbar-thumb:hover{background:#4b556399}.chat-container *{margin-bottom:0!important}.chat-container .message-list{padding-bottom:0!important}.chat-messages>div:last-child{height:0!important;margin:0!important;padding:0!important}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.animate-message-in{animation:messageSlideIn .3s ease-out}.animate-fade-in-up{animation:fadeInUp .2s ease-out}.animate-scale-in{animation:scaleIn .2s ease-out}.loading-shimmer{background:linear-gradient(90deg,#f3f4f6cc 25%,#e5e7ebcc,#f3f4f6cc 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}.dark .loading-shimmer{background:linear-gradient(90deg,#374151cc 25%,#4b5563cc,#374151cc 75%);background-size:200% 100%}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.typing-dot{animation:typingBounce 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:-.32s}.typing-dot:nth-child(2){animation-delay:-.16s}@keyframes typingBounce{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.focus-ring:focus{outline:none;box-shadow:0 0 0 3px #6366f14d}.hover-lift{transition:transform .2s ease-out,box-shadow .2s ease-out}.hover-lift:hover{transform:translateY(-2px);box-shadow:0 8px 25px #00000026}.glass-effect{background:#ffffffe6;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.2)}.dark .glass-effect{background:#111827e6;border:1px solid rgba(75,85,99,.3)}.message-bubble{position:relative;overflow:hidden}.message-bubble:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}.message-bubble:hover:before{left:100%}.image-grid{display:grid;gap:.5rem;grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}@media (max-width: 640px){.image-grid{grid-template-columns:1fr;gap:.25rem}}.file-attachment{transition:all .2s cubic-bezier(.4,0,.2,1)}.file-attachment:hover{transform:translateY(-1px);box-shadow:0 4px 12px #0000001a}.reaction-button{transition:all .15s cubic-bezier(.4,0,.2,1)}.reaction-button:hover{transform:scale(1.1)}.reaction-button:active{transform:scale(.95)}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@media (prefers-contrast: high){.message-bubble{border:2px solid currentColor}.chat-input-container{border-top:2px solid currentColor}}@media print{.chat-container{background:#fff!important;color:#000!important}.message-actions,.chat-input-container{display:none!important}}