:root{--font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;--bg-main: #ffffff;--bg-side: #eaecef;--bg-chrome: #d0d4da;--text-main: #24292f;--text-muted: #656d76;--border-color: #bbc0c7;--border-hover: #7a828b;--bg-active: #e2e6ea;--highlight-yellow: #fff8c5}[data-theme=dark]{--bg-main: #0d1117;--bg-side: #161b22;--bg-chrome: #1c2128;--text-main: #e6edf3;--text-muted: #8b949e;--border-color: #30363d;--border-hover: #484f58;--bg-active: #1c2128;--highlight-yellow: #3b2e00}*{box-sizing:border-box;margin:0;padding:0;border-radius:0}body{margin:0;padding:0;font-family:var(--font-system);background-color:var(--bg-main);color:var(--text-main);overflow:hidden;height:100vh;height:100dvh;width:100vw;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;font-size:13px;padding:5px 10px;background-color:var(--bg-side);border:1px solid var(--border-color);color:var(--text-main);cursor:pointer;display:inline-flex;align-items:center;gap:4px;transition:background-color .12s,border-color .12s}button:hover{background-color:var(--bg-active);border-color:var(--border-hover)}button:disabled{opacity:.4;cursor:not-allowed}button:focus-visible{outline:2px solid #58a6ff;outline-offset:1px}input[type=text],input[type=password]{font-family:inherit;font-size:14px;padding:7px 10px;border:1px solid var(--border-color);background-color:var(--bg-main);color:var(--text-main);outline:none;transition:border-color .12s}input[type=text]:focus,input[type=password]:focus{border-color:#58a6ff;box-shadow:0 0 0 3px #58a6ff26}input[type=text]::placeholder,input[type=password]::placeholder{color:var(--text-muted);opacity:.6}.app-container{display:flex;flex-direction:column;height:100vh;height:100dvh;width:100vw}.main-workspace{flex:1;display:flex;flex-direction:column;overflow:hidden;height:calc(100vh - 48px);height:calc(100dvh - 48px)}.top-nav{background-color:#1c2128;color:#fff;border-bottom:1px solid rgba(255,255,255,.06);height:48px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;flex-shrink:0}.top-nav-group{display:flex;align-items:center;gap:8px;height:100%}.scroll-x-no-scrollbar{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;height:100%}.scroll-x-no-scrollbar::-webkit-scrollbar{display:none}.chat-picture-btn{position:relative;width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.1);color:#fff;cursor:pointer;font-weight:600;font-size:11px;letter-spacing:.02em;text-transform:uppercase;flex-shrink:0;transition:transform .12s,border-color .12s}.chat-picture-btn:hover{border-color:#ffffff4d;transform:translateY(-1px)}.chat-picture-btn.active{outline:none;border-color:#fff6}.chat-picture-btn.active:after{content:"";position:absolute;bottom:-8px;left:4px;right:4px;height:2px;background-color:#58a6ff}.top-nav-btn{position:relative;display:flex;align-items:center;justify-content:center;background-color:transparent;border:none;color:#8b949e;cursor:pointer;transition:color .12s,background-color .12s;width:32px;height:32px}.top-nav-btn:hover{color:#e6edf3;background-color:#ffffff12}.top-nav-btn.active{color:#fff;background-color:#ffffff1a;outline:none}.top-nav-btn.active:after{content:"";position:absolute;bottom:-8px;left:4px;right:4px;height:2px;background-color:#58a6ff}.avatar-circle{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%!important;color:#fff;font-weight:700;font-size:11px;text-transform:uppercase;flex-shrink:0;box-shadow:inset 0 0 0 1px #0000001a}.avatar-circle-sm{width:20px;height:20px;font-size:9px}.msg-link{color:#2563eb;text-decoration:none;word-break:break-all}.msg-link:hover{text-decoration:underline}[data-theme=dark] .msg-link{color:#58a6ff}.embeds{display:flex;flex-direction:column;gap:8px;margin-top:8px}.embed-card{max-width:520px}.embed-image{max-width:100%;max-height:320px;display:block;border-radius:6px;border:1px solid var(--border-color)}.embed-video{position:relative;width:100%;max-width:520px;aspect-ratio:16 / 9;border-radius:6px;overflow:hidden;border:1px solid var(--border-color)}.embed-video iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.embed-tweet{max-width:520px;min-height:0}.embed-tweet .twitter-tweet{margin:0!important}@keyframes highlight-fade{0%{background-color:var(--highlight-yellow)}to{background-color:transparent}}.message-highlight{animation:highlight-fade 2s ease-out forwards}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes sentinelPulse{0%,80%,to{opacity:.2;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}@keyframes skeletonPulse{0%,to{opacity:.4}50%{opacity:.9}}.pane{display:flex;flex-direction:column;height:100%;overflow:hidden;background-color:var(--bg-main)}.txt-muted{color:var(--text-muted)}.txt-bold{font-weight:600}.item-card{border:1px solid var(--border-color);background-color:var(--bg-main);margin-bottom:12px;display:flex;flex-direction:column;cursor:pointer;transition:border-color .12s}.item-card:hover{border-color:var(--border-hover)}.item-card-header{background-color:var(--bg-side);border-bottom:1px solid var(--border-color);padding:8px 14px;display:flex;justify-content:space-between;align-items:center;font-size:12px}.item-card-body{padding:14px;font-size:14px;line-height:1.55}.item-card-footer{border-top:1px solid var(--border-color);padding:8px 14px;display:flex;gap:8px}.popover-form{background-color:#1c2128;border:1px solid rgba(255,255,255,.1);padding:4px 6px;display:flex;align-items:center;gap:4px}.popover-input{background-color:#ffffff0f;border:1px solid rgba(255,255,255,.12);color:#e6edf3;font-family:inherit;font-size:12px;padding:4px 8px;outline:none;transition:border-color .12s}.popover-input:focus{border-color:#58a6ff;box-shadow:0 0 0 2px #58a6ff33}.popover-btn{font-size:11px;padding:4px 8px;background-color:#ffffff0f;border:1px solid rgba(255,255,255,.12);color:#e6edf3}.popover-btn:hover{background-color:#ffffff1a}.chat-message-row:hover{background-color:var(--bg-side)!important}.chat-message-row:hover .message-actions-overlay{opacity:1!important;pointer-events:auto!important;background-color:var(--bg-side)!important}.scroll-to-bottom-btn{border-radius:50%!important}