:root{--cream: #faf7f2;--cream-dark: #efe9df;--espresso: #1a0f0a;--espresso-mid: #2c1810;--espresso-light: #4a3228;--warm: #8b7d72;--warm-light: #b8ada4;--accent: #b5542c;--accent-dark: #8f3f1e;--accent-hover: #cf6a3e;--sage: #4a5e42;--white: #ffffff;--danger: #c0392b;--font-display: "Fraunces", "Georgia", serif;--font-body: "Outfit", system-ui, sans-serif;--sidebar-width: 280px;--input-max-height: 120px;--transition: .2s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#app{height:100%}body{font-family:var(--font-body);color:var(--espresso);background:var(--cream);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::selection{background:var(--accent);color:var(--white)}.app{display:flex;height:100%;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--cream-dark);border-right:1px solid rgba(26,15,10,.08);display:flex;flex-direction:column;flex-shrink:0;height:100%}.sidebar-header{padding:16px;border-bottom:1px solid rgba(26,15,10,.08);display:flex;align-items:center;justify-content:space-between}.sidebar-title{font-family:var(--font-display);font-size:18px;font-weight:500;letter-spacing:.02em}.new-chat-btn{background:var(--accent);color:var(--white);border:none;border-radius:8px;padding:6px 12px;font-family:var(--font-body);font-size:13px;font-weight:500;cursor:pointer;transition:background var(--transition)}.new-chat-btn:hover{background:var(--accent-hover)}.conversation-list{flex:1;overflow-y:auto;padding:8px}.conversation-item{padding:10px 12px;border-radius:8px;cursor:pointer;transition:background var(--transition);margin-bottom:2px}.conversation-item:hover{background:#1a0f0a0d}.conversation-item.active{background:#b5542c1a}.conversation-item-title{font-size:14px;font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--espresso)}.conversation-item-time{font-size:11px;color:var(--warm);margin-top:2px}.conversation-item-actions{display:none;margin-left:auto;flex-shrink:0}.conversation-item:hover .conversation-item-actions{display:flex}.delete-btn{background:none;border:none;color:var(--warm);cursor:pointer;padding:2px 4px;font-size:12px;border-radius:4px;transition:color var(--transition),background var(--transition)}.delete-btn:hover{color:var(--danger);background:#c0392b1a}.conversation-item-row{display:flex;align-items:center}.chat-area{flex:1;display:flex;flex-direction:column;height:100%;min-width:0}.chat-header{display:none}.message-list{flex:1;overflow-y:auto;padding:24px 16px;display:flex;flex-direction:column;gap:16px}.message{max-width:720px;width:100%;margin:0 auto;display:flex;gap:12px;animation:fadeIn .3s ease}.message.user{flex-direction:row-reverse}.message-avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600}.message.assistant .message-avatar{background:var(--espresso-mid);color:var(--cream)}.message.user .message-avatar{background:var(--accent);color:var(--white)}.message-content{padding:10px 14px;border-radius:12px;line-height:1.55;font-size:14px;max-width:calc(100% - 44px)}.message.assistant .message-content{background:var(--white);border:1px solid rgba(26,15,10,.06)}.message.user .message-content{background:var(--cream-dark)}.message-content h1,.message-content h2,.message-content h3,.message-content h4{font-family:var(--font-display);margin:12px 0 6px;line-height:1.3}.message-content h1{font-size:18px}.message-content h2{font-size:16px}.message-content h3{font-size:15px}.message-content p{margin:6px 0}.message-content p:first-child{margin-top:0}.message-content p:last-child{margin-bottom:0}.message-content ul,.message-content ol{margin:6px 0;padding-left:20px}.message-content li{margin:2px 0}.message-content code{background:#1a0f0a0f;padding:1px 5px;border-radius:4px;font-size:13px}.message-content pre{background:var(--espresso);color:var(--cream);padding:12px;border-radius:8px;overflow-x:auto;margin:8px 0}.message-content pre code{background:none;padding:0;color:inherit}.message-content strong{font-weight:600}.message-content a{color:var(--accent);text-decoration:underline}.message-content table{border-collapse:collapse;margin:8px 0;font-size:13px;width:100%}.message-content th,.message-content td{border:1px solid rgba(26,15,10,.1);padding:6px 10px;text-align:left}.message-content th{background:var(--cream-dark);font-weight:600}.loading-dots{display:flex;gap:4px;padding:4px 0}.loading-dots span{width:6px;height:6px;border-radius:50%;background:var(--warm);animation:bounce 1.2s infinite}.loading-dots span:nth-child(2){animation-delay:.2s}.loading-dots span:nth-child(3){animation-delay:.4s}.input-bar{padding:12px 16px;border-top:1px solid rgba(26,15,10,.08);background:var(--cream);max-width:720px;width:100%;margin:0 auto}.input-wrapper{display:flex;align-items:flex-end;gap:8px;background:var(--white);border:1px solid rgba(26,15,10,.12);border-radius:12px;padding:8px 12px;transition:border-color var(--transition)}.input-wrapper:focus-within{border-color:var(--accent)}.input-textarea{flex:1;border:none;outline:none;font-family:var(--font-body);font-size:14px;color:var(--espresso);background:transparent;resize:none;min-height:24px;max-height:var(--input-max-height);line-height:1.5}.input-textarea::placeholder{color:var(--warm-light)}.input-btn{background:none;border:none;cursor:pointer;padding:4px;border-radius:6px;color:var(--warm);transition:color var(--transition),background var(--transition);display:flex;align-items:center;justify-content:center;flex-shrink:0}.input-btn:hover{color:var(--espresso);background:#1a0f0a0d}.input-btn.send{color:var(--white);background:var(--accent);border-radius:8px;padding:6px}.input-btn.send:hover{background:var(--accent-hover)}.input-btn.send:disabled{background:var(--warm-light);cursor:not-allowed}.input-btn.recording{color:var(--danger);animation:pulse 1.5s infinite}.file-preview-strip{display:flex;gap:8px;padding:8px 12px 0;overflow-x:auto}.file-preview{position:relative;width:64px;height:64px;border-radius:8px;overflow:hidden;border:1px solid rgba(26,15,10,.1);flex-shrink:0}.file-preview img{width:100%;height:100%;object-fit:cover}.file-preview-name{display:flex;align-items:center;justify-content:center;height:100%;font-size:10px;color:var(--warm);text-align:center;padding:4px;word-break:break-all;background:var(--cream-dark)}.file-preview-remove{position:absolute;top:2px;right:2px;width:18px;height:18px;border-radius:50%;background:#00000080;color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:11px;line-height:1}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;text-align:center}.empty-state-logo{width:48px;height:48px;border-radius:50%;background:var(--espresso-mid);color:var(--cream);display:flex;align-items:center;justify-content:center;font-family:var(--font-display);font-size:22px;margin-bottom:16px}.empty-state h2{font-family:var(--font-display);font-size:22px;font-weight:400;margin-bottom:8px}.empty-state p{color:var(--warm);font-size:14px;margin-bottom:24px;max-width:360px}.suggestions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:480px}.suggestion-btn{background:var(--white);border:1px solid rgba(26,15,10,.1);border-radius:20px;padding:8px 16px;font-family:var(--font-body);font-size:13px;color:var(--espresso-light);cursor:pointer;transition:border-color var(--transition),color var(--transition)}.suggestion-btn:hover{border-color:var(--accent);color:var(--accent)}.error-toast{position:fixed;bottom:80px;left:50%;transform:translate(-50%);background:var(--danger);color:var(--white);padding:8px 16px;border-radius:8px;font-size:13px;z-index:100;animation:fadeIn .3s ease}.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer;padding:8px;color:var(--espresso)}.sidebar-backdrop{display:none}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes bounce{0%,80%,to{transform:translateY(0)}40%{transform:translateY(-6px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.message-list::-webkit-scrollbar,.conversation-list::-webkit-scrollbar{width:4px}.message-list::-webkit-scrollbar-thumb,.conversation-list::-webkit-scrollbar-thumb{background:var(--warm-light);border-radius:2px}@media(max-width:640px){.sidebar{position:fixed;left:0;top:0;bottom:0;z-index:50;transform:translate(-100%);transition:transform .25s ease}.sidebar.open{transform:translate(0)}.sidebar-backdrop{display:block;position:fixed;inset:0;background:#0000004d;z-index:49;opacity:0;pointer-events:none;transition:opacity .25s ease}.sidebar-backdrop.visible{opacity:1;pointer-events:auto}.chat-header{display:flex;align-items:center;padding:12px 16px;border-bottom:1px solid rgba(26,15,10,.08);gap:12px}.mobile-menu-btn{display:flex}.chat-header-title{font-family:var(--font-display);font-size:16px;font-weight:500}.input-bar{padding-bottom:max(12px,env(safe-area-inset-bottom))}}