:root{color-scheme:dark;--bg: #0d1117;--bg-elev: #161b22;--bg-elev-2: #1c2128;--bg-inset: #010409;--border: #30363d;--border-muted: #21262d;--text: #e6edf3;--text-muted: #7d8590;--text-dim: #656d76;--accent: #2f81f7;--accent-hover: #4c93ff;--accent-subtle: rgba(47, 129, 247, .15);--accent-glow: rgba(47, 129, 247, .25);--success: #3fb950;--danger: #f85149;--danger-subtle: rgba(248, 81, 73, .12);--bg-elev-3: #262c36;--border-strong: #3d444d;--scrim: rgba(1, 4, 9, .7);--radius: 12px;--radius-sm: 8px;--shadow: 0 8px 24px rgba(1, 4, 9, .5);--shadow-sm: 0 1px 2px rgba(1, 4, 9, .4);--ring: rgba(47, 129, 247, .55);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;--mono: "SF Mono", ui-monospace, "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-7: 32px;--space-8: 40px;--dur-1: .12s;--dur-2: .18s;--dur-3: .24s;--ease-out: cubic-bezier(.22, .61, .36, 1);--z-sidebar: 40;--z-overlay: 50;--z-modal: 60;--z-toast: 70}:root[data-theme=light]{color-scheme:light;--bg: #ffffff;--bg-elev: #eaeef2;--bg-elev-2: #dde2e8;--bg-elev-3: #d0d7de;--bg-inset: #f6f8fa;--border: #d1d9e0;--border-muted: #e4e8ec;--border-strong: #b8c0c9;--text: #1f2328;--text-muted: #59636e;--text-dim: #656d76;--accent: #0969da;--accent-hover: #0860ca;--accent-subtle: rgba(9, 105, 218, .1);--accent-glow: rgba(9, 105, 218, .22);--success: #1a7f37;--danger: #cf222e;--danger-subtle: rgba(207, 34, 46, .1);--scrim: rgba(31, 35, 40, .42);--shadow: 0 8px 24px rgba(31, 35, 40, .15);--shadow-sm: 0 1px 2px rgba(31, 35, 40, .1);--ring: rgba(9, 105, 218, .5)}@media(prefers-reduced-motion:no-preference){:root.theme-anim,:root.theme-anim *,:root.theme-anim *:before,:root.theme-anim *:after{transition:background-color var(--dur-2) var(--ease-out),border-color var(--dur-2) var(--ease-out),color var(--dur-2) var(--ease-out),fill var(--dur-2) var(--ease-out)!important}}*{box-sizing:border-box}:focus-visible{outline:2px solid var(--ring);outline-offset:2px}:focus:not(:focus-visible){outline:none}::selection{background:var(--accent-subtle);color:var(--text)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}html,body,#root{height:100%;margin:0}html,body{overflow-x:hidden;overscroll-behavior:none}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}input,textarea,select{font-family:inherit}@media(pointer:coarse){input,textarea,select{font-size:16px}}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}.app{display:grid;grid-template-columns:288px minmax(0,1fr);grid-template-rows:minmax(0,1fr);height:100vh;height:100dvh;overflow:hidden;overscroll-behavior:none}.sidebar{background:var(--bg-inset);border-right:1px solid var(--border-muted);display:flex;flex-direction:column;min-height:0}.sidebar-head{padding:14px 14px 10px;display:flex;align-items:center;gap:10px}.brand{display:flex;align-items:center;gap:9px;font-weight:600;font-size:15px;letter-spacing:-.01em}.brand svg{width:24px;height:24px}.new-chat{margin:4px 12px 10px;padding:10px 12px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-weight:600;font-size:13.5px;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:var(--shadow-sm);transition:background var(--dur-1) var(--ease-out),transform var(--dur-1) var(--ease-out)}.new-chat:hover{background:var(--accent-hover)}.new-chat:active{transform:translateY(1px)}.conv-list{flex:1;overflow-y:auto;padding:4px 8px 12px;min-height:0}.conv-item{display:flex;align-items:center;gap:8px;padding:9px 10px;border:1px solid transparent;border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;position:relative;transition:background var(--dur-1) var(--ease-out),color var(--dur-1) var(--ease-out),border-color var(--dur-1) var(--ease-out)}.conv-item:hover{background:var(--bg-elev);color:var(--text)}.conv-item.active{background:var(--bg-elev-2);border-color:var(--border-muted);color:var(--text)}.conv-item.active .title{font-weight:600}.conv-item .title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13.5px}.conv-item .del{flex-shrink:0;opacity:.55;background:none;border:none;color:var(--text-dim);padding:2px;border-radius:6px;display:flex;transition:opacity var(--dur-1) var(--ease-out),color var(--dur-1),background var(--dur-1)}.conv-item:hover .del,.conv-item.active .del{opacity:1}.conv-item .del:hover,.conv-item .del:focus-visible{opacity:1;color:var(--danger);background:var(--danger-subtle)}.sidebar-foot{border-top:1px solid var(--border-muted);padding:10px 12px;display:flex;align-items:center;gap:10px}.avatar{width:30px;height:30px;border-radius:50%;background:var(--bg-elev-2);object-fit:cover;flex-shrink:0}.user-meta{flex:1;min-width:0}.user-meta .name{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-meta .email{font-size:11.5px;color:var(--text-dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.icon-btn{background:none;border:1px solid transparent;color:var(--text-muted);padding:6px;border-radius:7px;display:flex;align-items:center;justify-content:center;transition:background var(--dur-1),color var(--dur-1),border-color var(--dur-1),transform var(--dur-1) var(--ease-out)}.icon-btn:hover{background:var(--bg-elev);color:var(--text)}.icon-btn:active{transform:translateY(1px)}.main{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}.topbar{height:56px;border-bottom:1px solid var(--border-muted);display:flex;align-items:center;gap:12px;padding:0 18px;flex-shrink:0;background:var(--bg)}.topbar .conv-title{font-weight:600;font-size:15px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.messages{flex:1;overflow-y:auto;overflow-x:hidden;scrollbar-gutter:stable;overscroll-behavior:contain;min-height:0;padding:24px 0 12px}.messages-inner{max-width:820px;margin:0 auto;padding:0 24px;display:flex;flex-direction:column;gap:22px}.msg{display:flex;gap:14px;min-width:0;animation:msg-in var(--dur-2) var(--ease-out) both}@keyframes msg-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.msg .role-badge{width:30px;height:30px;border-radius:7px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.msg.user .role-badge{background:var(--bg-elev-2);color:var(--text-muted)}.msg.assistant .role-badge{background:linear-gradient(135deg,#2f81f7,#a371f7);color:#fff}.msg .body{flex:1;min-width:0;overflow-wrap:anywhere;padding-top:3px}.msg-text{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}.msg .who{font-weight:600;font-size:13px;margin-bottom:2px}.reasoning{margin:0 0 10px;border:1px solid var(--border-muted);background:var(--bg-elev);border-radius:8px}.reasoning summary{cursor:pointer;padding:7px 12px;color:var(--text-muted);font-size:12.5px;list-style:none;-webkit-user-select:none;user-select:none}.reasoning summary::-webkit-details-marker{display:none}.reasoning .reasoning-content{padding:0 14px 10px;color:var(--text-muted);font-size:13px;white-space:pre-wrap}.tool-chip{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--text-muted);background:var(--bg-elev);border:1px solid var(--border-muted);border-radius:999px;padding:3px 10px;margin:3px 6px 3px 0}.tool-chip.ok{color:var(--success)}.tool-chip.fail{color:var(--danger)}.tool-row{margin-bottom:8px}.msg-error{margin-top:8px;color:var(--danger);background:var(--danger-subtle);border:1px solid rgba(248,81,73,.3);border-radius:8px;padding:8px 12px;font-size:13px}.msg-actions{display:flex;align-items:center;gap:6px;margin-top:8px;opacity:0;transition:opacity var(--dur-1) var(--ease-out)}.msg:hover .msg-actions,.msg:focus-within .msg-actions{opacity:1}@media(hover:none){.msg-actions{opacity:1}}.copy-btn{display:inline-flex;align-items:center;gap:6px;background:none;border:1px solid transparent;color:var(--text-muted);font:inherit;font-size:12px;padding:4px 8px;border-radius:7px;transition:background var(--dur-1),color var(--dur-1),border-color var(--dur-1),transform var(--dur-1) var(--ease-out)}.copy-btn:hover{background:var(--bg-elev);color:var(--text)}.copy-btn:active{transform:translateY(1px)}.copy-btn.copied{color:var(--success)}.topbar-copy{padding:6px}.selection-menu{position:fixed;z-index:var(--z-overlay);transform:translate(-50%,-100%);display:flex;align-items:stretch;gap:2px;padding:3px;background:var(--bg-elev-2);border:1px solid var(--border);border-radius:9px;box-shadow:var(--shadow);animation:sel-in var(--dur-1) var(--ease-out) both}@keyframes sel-in{0%{opacity:0}to{opacity:1}}.selection-menu.below{transform:translate(-50%)}.selection-menu button{display:inline-flex;align-items:center;gap:6px;white-space:nowrap;background:none;border:none;color:var(--text);font:inherit;font-size:12.5px;padding:6px 10px;border-radius:6px;transition:background var(--dur-1),color var(--dur-1)}.selection-menu button:hover{background:var(--accent-subtle);color:var(--accent)}.selection-menu button svg{color:var(--text-muted)}.selection-menu button:hover svg{color:var(--accent)}.attach-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px}.attach-card{margin:0;display:flex;flex-direction:column;gap:6px;max-width:260px;min-width:0}.attach-card.audio{width:260px}.attach-thumb{display:block;padding:0;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--bg-elev);cursor:zoom-in;line-height:0}.attach-thumb img{display:block;max-width:258px;max-height:200px;object-fit:cover}.attach-media{display:block;width:260px;max-height:220px;border:1px solid var(--border);border-radius:8px;background:#000}.attach-audio{width:100%;height:40px}.attach-cap{display:flex;align-items:center;gap:8px;min-width:0;font-size:12px}.attach-cap-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}.attach-cap-size{color:var(--text-dim);font-size:11.5px;flex-shrink:0}.attach-file{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--bg-elev);border-radius:8px;padding:8px 12px;font-size:13px;color:var(--text);max-width:320px}.attach-file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attach-file .fsize{color:var(--text-dim);font-size:11.5px;flex-shrink:0}.attach-dl{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:6px;color:var(--text-muted);border:1px solid transparent;flex-shrink:0;transition:background var(--dur-1),color var(--dur-1),border-color var(--dur-1)}.attach-dl:hover{color:var(--text);background:var(--bg-elev-2);border-color:var(--border-muted)}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;background:#010409d1;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.lightbox-bar{display:flex;align-items:center;gap:8px;width:min(92vw,1100px)}.lightbox-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text);font-size:13px}.lightbox-bar .icon-btn{color:var(--text);background:#ffffff14}.lightbox-bar .icon-btn:hover{background:#ffffff29}.lightbox-img{max-width:min(92vw,1100px);max-height:82vh;object-fit:contain;border-radius:8px;box-shadow:var(--shadow);cursor:default}.cursor-blink:after{content:"▋";margin-left:1px;color:var(--accent);animation:blink 1s steps(2,start) infinite}@keyframes blink{to{visibility:hidden}}.md{overflow-wrap:anywhere}.md>*:first-child{margin-top:0}.md>*:last-child{margin-bottom:0}.md p{margin:0 0 12px}.md pre{background:var(--bg-inset);border:1px solid var(--border-muted);border-radius:10px;padding:14px 16px;overflow-x:auto;margin:0 0 12px}.md code{font-family:var(--mono);font-size:12.8px}.md :not(pre)>code{background:var(--bg-elev-2);padding:2px 6px;border-radius:6px;font-size:.88em}.md pre code{background:none;padding:0}.md a{color:var(--accent);text-decoration:none}.md a:hover{text-decoration:underline}.md ul,.md ol{margin:0 0 12px;padding-left:24px}.md li{margin:3px 0}.md h1,.md h2,.md h3{margin:20px 0 10px;line-height:1.3}.md table{border-collapse:collapse;margin:0 0 12px;display:block;overflow-x:auto}.md th,.md td{border:1px solid var(--border);padding:6px 12px}.md blockquote{border-left:3px solid var(--border);margin:0 0 12px;padding-left:14px;color:var(--text-muted)}.md-diagram{margin:0 0 12px;padding:14px 16px;background:var(--bg-inset);border:1px solid var(--border-muted);border-radius:10px;overflow-x:auto;text-align:center}.md-diagram svg{max-width:100%;height:auto}.md-svg{line-height:0}.composer-wrap{padding:8px 24px 20px;flex-shrink:0}.composer{max-width:820px;margin:0 auto;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:10px 10px 10px 14px;box-shadow:var(--shadow-sm);transition:border-color var(--dur-2) var(--ease-out),box-shadow var(--dur-2) var(--ease-out)}.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.composer-previews{display:flex;flex-wrap:wrap;gap:8px;padding:4px 4px 10px}.preview{position:relative;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--bg-elev-2)}.preview img,.preview video{display:block;width:56px;height:56px;object-fit:cover}.preview .file-tag{display:flex;align-items:center;gap:6px;padding:8px 10px;font-size:12px;max-width:180px}.preview .file-tag span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview .remove{position:absolute;top:2px;right:2px;background:#010409bf;border:none;color:#fff;border-radius:50%;width:18px;height:18px;font-size:11px;display:flex;align-items:center;justify-content:center;line-height:1}.preview.uploading{opacity:.6}.composer-input-row{display:flex;align-items:flex-end;gap:8px}.composer textarea{flex:1;background:none;border:none;color:var(--text);resize:none;outline:none;font-size:16px;line-height:1.5;max-height:220px;padding:6px 0}.composer textarea::placeholder{color:var(--text-muted)}.send-btn{width:34px;height:34px;border-radius:8px;border:none;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background var(--dur-1),opacity var(--dur-1),transform var(--dur-1) var(--ease-out)}.send-btn:not(:disabled):hover{background:var(--accent-hover)}.send-btn:not(:disabled):active{transform:translateY(1px)}.send-btn:disabled{background:var(--bg-elev-2);color:var(--text-dim);cursor:not-allowed}.send-btn.stop{background:var(--danger)}.send-btn.stop:not(:disabled):hover{background:var(--danger);filter:brightness(1.1)}.mic-btn{position:relative;flex-shrink:0}.mic-btn.recording{color:var(--danger);background:var(--danger-subtle);border-color:var(--danger-subtle)}.mic-btn.recording:hover{color:var(--danger)}.mic-rec-dot{position:absolute;top:4px;right:4px;width:6px;height:6px;border-radius:50%;background:var(--danger);animation:mic-blink 1.1s ease-in-out infinite}@keyframes mic-blink{0%,to{opacity:1}50%{opacity:.3}}.composer-hint.listening{color:var(--text-muted)}.composer-hint{max-width:820px;margin:8px auto 0;text-align:center;color:var(--text-dim);font-size:11.5px}.quickbar{max-width:820px;margin:10px auto 0;display:flex;align-items:center;gap:8px 14px;flex-wrap:wrap}.quickbar-group{display:inline-flex;align-items:center;gap:10px;min-width:0}.quickbar-group-end{margin-left:auto;gap:12px}.qs-select{display:inline-flex;min-width:0}.qs-select select{-moz-appearance:none;appearance:none;-webkit-appearance:none;max-width:230px;text-overflow:ellipsis;color:var(--text);background-color:var(--bg-elev);background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16' fill='none' stroke='%237d8590' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'><path d='M4 6.5 8 10.5 12 6.5'/></svg>");background-repeat:no-repeat;background-position:right 11px center;background-size:13px;border:1px solid var(--border);border-radius:999px;padding:6px 30px 6px 13px;font-family:var(--font);font-size:12.5px;font-weight:500;cursor:pointer;transition:border-color var(--dur-1),background-color var(--dur-1)}.qs-select select:hover{border-color:var(--border-strong);background-color:var(--bg-elev-2)}.qs-context{font-size:12px;color:var(--text-muted);white-space:nowrap}.seg.seg-sm{padding:2px}.seg.seg-sm button{padding:4px 10px;font-size:12px}.qs-switch{gap:8px}.qs-switch-label{font-size:12.5px;color:var(--text-muted)}.empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--text-muted);padding:40px;text-align:center}.empty h2{color:var(--text);margin:0;font-size:22px;letter-spacing:-.02em;text-wrap:balance}.empty .suggestions{display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:520px;width:100%;margin-top:8px}.suggestion{text-align:left;background:var(--bg-elev);border:1px solid var(--border-muted);border-radius:10px;padding:12px 14px;color:var(--text);font-size:13px;transition:border-color var(--dur-1),background var(--dur-1),transform var(--dur-1) var(--ease-out)}.suggestion:hover{border-color:var(--border);background:var(--bg-elev-2)}.suggestion:active{transform:translateY(1px)}.suggestion .s-title{font-weight:600;margin-bottom:2px}.suggestion .s-sub{color:var(--text-dim);font-size:12px}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--scrim);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:24px;animation:overlay-in var(--dur-2) var(--ease-out)}@keyframes overlay-in{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-elev);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);width:100%;max-width:520px;max-height:85vh;overflow-y:auto;animation:modal-in var(--dur-3) var(--ease-out) both}@keyframes modal-in{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal.wide{max-width:720px}.modal-head{display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border-muted)}.modal-head h3{margin:0;font-size:16px;flex:1}.modal-body{padding:18px 20px}.field{margin-bottom:16px}.field label:not(.switch){display:block;font-size:12.5px;font-weight:600;color:var(--text-muted);margin-bottom:6px}.field .hint{color:var(--text-dim);font-size:11.5px;margin-top:5px;font-weight:400}.hint{color:var(--text-muted);font-size:12.5px}select.input,input.input,textarea.input{width:100%;background:var(--bg-inset);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:9px 11px;font-size:13.5px;outline:none}select.input:focus,input.input:focus,textarea.input:focus{border-color:var(--accent)}textarea.input{resize:vertical;min-height:72px}.seg{display:inline-flex;background:var(--bg-inset);border:1px solid var(--border);border-radius:8px;padding:3px;gap:3px}.seg button{background:none;border:none;color:var(--text-muted);padding:6px 12px;border-radius:6px;font-size:12.5px;font-weight:500;transition:background var(--dur-1),color var(--dur-1),transform var(--dur-1) var(--ease-out)}.seg button:hover:not(.active){color:var(--text);background:var(--bg-elev)}.seg button:active{transform:translateY(1px)}.seg button.active{background:var(--accent);color:#fff}.switch{display:inline-flex;align-items:center;gap:10px;cursor:pointer}.switch input{display:none}.switch .track{width:38px;height:22px;border-radius:999px;background:var(--bg-inset);border:1px solid var(--border);position:relative;transition:background .15s}.switch .track:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:var(--text-muted);transition:transform .15s,background .15s}.switch input:checked+.track{background:var(--accent-subtle);border-color:var(--accent)}.switch input:checked+.track:after{transform:translate(16px);background:var(--accent)}.btn{border:1px solid var(--border);background:var(--bg-elev-2);color:var(--text);border-radius:8px;padding:9px 14px;font-size:13px;font-weight:500;transition:background var(--dur-1),border-color var(--dur-1),transform var(--dur-1) var(--ease-out)}.btn:hover{background:var(--bg-elev-3)}.btn:active{transform:translateY(1px)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{background:var(--accent-hover)}.btn.danger{color:var(--danger);border-color:#f8514966;background:var(--danger-subtle)}.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:14px 20px;border-top:1px solid var(--border-muted)}.row-list{display:flex;flex-direction:column;gap:6px}.row-item{display:flex;align-items:center;gap:10px;padding:9px 12px;background:var(--bg-inset);border:1px solid var(--border-muted);border-radius:8px;font-size:13px}.row-item .grow{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge{font-size:11px;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--accent-subtle);color:var(--accent)}.badge.admin{background:#a371f729;color:#a371f7}.add-row{display:flex;gap:8px;margin-bottom:14px}.add-row input{flex:1}.tabs{display:flex;gap:4px;padding:12px 20px 0}.tabs button{background:none;border:1px solid transparent;color:var(--text-muted);padding:7px 13px;font-size:13px;font-weight:500;border-radius:8px;transition:background var(--dur-1),color var(--dur-1),border-color var(--dur-1)}.tabs button:hover:not(.active){color:var(--text);background:var(--bg-elev)}.tabs button.active{color:var(--text);background:var(--bg-elev-2);border-color:var(--border-muted)}.topbar-files{position:relative}.count-badge{position:absolute;top:-2px;right:-2px;min-width:16px;height:16px;padding:0 4px;border-radius:999px;background:var(--accent);color:#fff;font-size:10.5px;font-weight:600;line-height:16px;text-align:center;border:2px solid var(--bg)}.files-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:180px;color:var(--text-muted);text-align:center}.files-empty p{margin:0;font-weight:600;color:var(--text)}.files-empty .hint{max-width:340px}.files-section+.files-section{margin-top:22px}.files-section-title{font-size:12.5px;font-weight:600;color:var(--text-muted);margin-bottom:10px}.files-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.file-card{margin:0;display:flex;flex-direction:column;gap:8px;padding:10px;background:var(--bg-inset);border:1px solid var(--border-muted);border-radius:10px}.file-preview{display:flex;align-items:center;justify-content:center;width:100%;height:130px;padding:0;background:var(--bg);border:1px solid var(--border-muted);border-radius:8px;overflow:hidden}button.file-preview{cursor:zoom-in}.file-preview.audio{padding:0 10px}.file-preview img,.file-preview video{max-width:100%;max-height:100%;object-fit:contain}.file-preview audio{width:100%}.file-meta{display:flex;align-items:baseline;gap:8px;min-width:0}.file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;color:var(--text)}.file-size{color:var(--text-dim);font-size:11.5px;flex-shrink:0}.btn.file-dl{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:7px 10px;font-size:12.5px;text-decoration:none;color:var(--text)}.login{height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(1200px 600px at 50% -10%,rgba(47,129,247,.12),transparent),var(--bg);padding:24px}.login-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:40px;width:100%;max-width:400px;text-align:center}.login-card .logo{width:52px;height:52px;margin:0 auto 18px}.login-card h1{font-size:22px;margin:0 0 8px;letter-spacing:-.02em}.login-card p{color:var(--text-muted);margin:0 0 26px;font-size:13.5px}.google-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;background:#fff;color:#1f1f1f;border:none;border-radius:10px;padding:12px;font-size:14px;font-weight:600;transition:opacity var(--dur-1),transform var(--dur-1) var(--ease-out);text-decoration:none}.google-btn:hover{opacity:.92}.google-btn:active{transform:translateY(1px)}.google-btn.disabled{opacity:.5;pointer-events:none}.login-error{background:var(--danger-subtle);border:1px solid rgba(248,81,73,.3);color:var(--danger);border-radius:10px;padding:10px 14px;font-size:13px;margin-bottom:20px}.login-note{margin-top:20px;color:var(--text-dim);font-size:12px}.center-fill{height:100vh;display:flex;align-items:center;justify-content:center;color:var(--text-muted)}.spinner{width:22px;height:22px;border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.dots span{animation:pulse 1.2s infinite}.dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}@keyframes pulse{0%,60%,to{opacity:.3}30%{opacity:1}}.menu-btn,.sidebar-scrim{display:none}@media(max-width:720px){.app{grid-template-columns:1fr}.menu-btn{display:inline-flex}.sidebar{position:fixed;z-index:calc(var(--z-sidebar) + 1);width:288px;height:100vh;transform:translate(-100%);transition:transform var(--dur-3) var(--ease-out);box-shadow:var(--shadow)}.sidebar.open{transform:translate(0)}.sidebar-scrim{display:block;position:fixed;top:0;right:0;bottom:0;left:0;border:none;padding:0;background:var(--scrim);z-index:var(--z-sidebar);animation:overlay-in var(--dur-2) var(--ease-out)}.quickbar-group-end{margin-left:0}}