:root{--bg: #0d0d0f;--bg-elevated: #171719;--bg-deep: #0d0d0f;--bg-mesh-1: rgba(138, 180, 248, .04);--bg-mesh-2: rgba(245, 158, 11, .04);--surface: #141416;--surface-2: #1c1c1f;--surface-glass: rgba(20, 20, 22, .88);--bg-surface: #141416;--hover: rgba(255, 255, 255, .06);--hover-strong: rgba(255, 255, 255, .1);--border: rgba(255, 255, 255, .08);--border-subtle: rgba(255, 255, 255, .06);--border-strong: rgba(255, 255, 255, .12);--text: #ececf1;--text-primary: #ececf1;--text-secondary: #b4b4bc;--text-muted: #8e8ea0;--text-dim: #565869;--accent: #8ab4f8;--accent-2: #22d3ee;--accent-amber: #f59e0b;--accent-amber-dim: rgba(245, 158, 11, .35);--accent-cyan: #22d3ee;--accent-cyan-dim: rgba(34, 211, 238, .3);--accent-soft: rgba(138, 180, 248, .14);--accent-glow: rgba(138, 180, 248, .28);--ai-soft: rgba(138, 180, 248, .1);--user-bg: rgba(255, 255, 255, .06);--danger: #f87171;--success: #4ade80;--font: "DM Sans", system-ui, -apple-system, sans-serif;--mono: "JetBrains Mono", ui-monospace, monospace;--sidebar-w: 272px;--thread-max: 46rem;--topbar-h: 52px;--radius: 16px;--radius-md: 12px;--radius-sm: 10px;--radius-lg: 20px;--radius-pill: 999px;--shadow: 0 12px 40px rgba(0, 0, 0, .45);--shadow-lg: 0 24px 64px rgba(0, 0, 0, .55);--shadow-composer: 0 0 0 1px var(--border), 0 8px 32px rgba(0, 0, 0, .35)}*{box-sizing:border-box}html{height:100%;height:-webkit-fill-available}html.menu-open,html.modal-open{overflow:hidden}html,body,#root{margin:0;height:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);overscroll-behavior:none;-webkit-text-size-adjust:100%}button,input,select,textarea{font:inherit;-webkit-tap-highlight-color:transparent}.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;height:100dvh;color:var(--text-muted)}.loader-ring{width:36px;height:36px;border-radius:50%;border:2px solid var(--border);border-top-color:var(--accent);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-screen{position:relative;min-height:100dvh;display:grid;place-items:center;padding:24px;padding-bottom:max(24px,env(safe-area-inset-bottom));overflow:hidden}.login-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 80% 50% at 20% 10%,var(--bg-mesh-1),transparent 55%),radial-gradient(ellipse 60% 40% at 85% 80%,var(--bg-mesh-2),transparent 50%),var(--bg);pointer-events:none}.login-bg:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");opacity:.4}.login-card{position:relative;width:100%;max-width:400px;background:var(--surface-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border-strong);border-radius:20px;padding:32px 28px;box-shadow:var(--shadow)}.login-brand-row{display:flex;align-items:center;gap:14px;margin-bottom:28px}.login-logo{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,var(--accent-soft),var(--ai-soft));border:1px solid var(--border)}.login-brand{font-size:1.35rem;font-weight:700;letter-spacing:-.03em}.login-sub{margin:2px 0 0;color:var(--text-muted);font-size:.85rem}.login-form label{display:block;margin-bottom:16px;font-size:.78rem;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.login-form input{display:block;width:100%;margin-top:8px;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--text);text-transform:none;letter-spacing:normal;font-size:1rem;transition:border-color .15s,box-shadow .15s}.login-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.btn-primary{width:100%;margin-top:8px;padding:13px;border:none;border-radius:var(--radius-sm);background:linear-gradient(135deg,#f59e0b,#d97706);color:#0c0a09;font-weight:600;cursor:pointer;transition:transform .12s,filter .12s}.btn-primary:hover:not(:disabled){filter:brightness(1.06)}.btn-primary:active:not(:disabled){transform:scale(.98)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.login-switch{width:100%;margin-top:14px;background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.85rem}.login-switch:hover{color:var(--text)}.login-error{color:var(--danger);font-size:.85rem;margin:8px 0}.login-info{color:var(--success);font-size:.85rem;margin:8px 0}.app-root{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.app-root:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 70% 45% at 100% 0%,var(--bg-mesh-1),transparent 50%),radial-gradient(ellipse 50% 35% at 0% 100%,var(--bg-mesh-2),transparent 45%);pointer-events:none;z-index:0}.chat-pane{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;width:100%}.side-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:900;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .22s ease}.side-scrim--visible{opacity:1;pointer-events:auto}.side-nav{position:fixed;z-index:910;top:0;left:0;bottom:0;width:min(var(--sidebar-w),92vw);display:flex;flex-direction:column;background:var(--surface);border-right:1px solid var(--border);transform:translate(-102%);transition:transform .26s cubic-bezier(.22,1,.36,1);pointer-events:none}.side-nav--open{transform:translate(0);pointer-events:auto}.side-nav-head{flex-shrink:0;padding:max(14px,env(safe-area-inset-top)) 14px 12px;border-bottom:1px solid var(--border)}.side-nav-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:14px}.brand-lockup{display:flex;align-items:center;gap:10px}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--accent-soft),var(--ai-soft));border:1px solid var(--border)}.side-nav-brand{font-weight:700;font-size:1.05rem;letter-spacing:-.02em}.side-nav-tag{font-size:.72rem;color:var(--text-dim);margin-top:1px}.side-nav-close{display:grid}.main-nav{display:none}.nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-muted);cursor:pointer;font-size:.9rem;text-align:left;transition:background .12s,color .12s}.nav-item svg{flex-shrink:0;opacity:.85}.nav-item:hover{background:var(--hover);color:var(--text)}.nav-item--active{background:var(--hover-strong);color:var(--text);font-weight:500}.nav-item--active svg{color:var(--accent);opacity:1}.nav-item--soon{opacity:.75}.nav-item--compact{padding:8px 10px;font-size:.84rem}.nav-badge{margin-left:auto;font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:2px 6px;border-radius:6px;background:var(--hover);color:var(--text-dim)}.btn-new{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:11px 14px;margin-bottom:12px;border-radius:var(--radius-pill);border:1px solid var(--border-strong);background:transparent;color:var(--text);font-weight:600;font-size:.88rem;cursor:pointer;transition:background .15s,border-color .15s}.btn-new:hover{background:var(--hover-strong);border-color:#ffffff2e}.session-block{flex:1;min-height:0;display:flex;flex-direction:column;padding:8px 0}.session-block-head{display:flex;flex-direction:column;gap:8px;padding:0 12px 6px}.session-block-label{padding:0;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim)}.session-search-wrap{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:var(--radius-pill);background:var(--surface-2);border:1px solid var(--border);color:var(--text-dim)}.session-search-wrap svg{flex-shrink:0;width:14px;height:14px}.session-search{flex:1;min-width:0;border:none;background:transparent;color:var(--text);font-size:.82rem;outline:none}.session-search::placeholder{color:var(--text-dim)}.session-list{flex:1;min-height:0;overflow-y:auto;padding:0 8px;-webkit-overflow-scrolling:touch}.session-empty{padding:12px 10px;font-size:.82rem;color:var(--text-muted);line-height:1.45}.session-item{display:flex;align-items:center;gap:2px;border-radius:var(--radius-sm);margin-bottom:2px}.session-item--active{background:var(--hover-strong)}.session-title{flex:1;display:flex;align-items:center;gap:6px;min-width:0;text-align:left;padding:9px 10px;border:none;background:transparent;color:var(--text);cursor:pointer;font-size:.84rem}.session-title-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-item-actions{display:flex;align-items:center;opacity:0;transition:opacity .12s}.session-item:hover .session-item-actions,.session-item:focus-within .session-item-actions{opacity:1}.session-action{flex-shrink:0;border:none;background:transparent;color:var(--text-dim);cursor:pointer;padding:4px 6px;border-radius:6px;font-size:.75rem;line-height:1}.session-action svg{width:14px;height:14px}.session-action:hover{color:var(--text);background:var(--hover)}.session-action--danger:hover{color:var(--danger);background:#f871711f}.session-rename-input{flex:1;min-width:0;margin:4px 6px;padding:6px 8px;border-radius:8px;border:1px solid var(--accent);background:var(--bg);color:var(--text);font-size:.84rem;outline:none}.session-delete{flex-shrink:0;border:none;background:transparent;color:var(--text-dim);cursor:pointer;padding:6px 8px;border-radius:8px;opacity:0;transition:opacity .12s,color .12s,background .12s}.session-item:hover .session-delete,.session-item:focus-within .session-delete{opacity:1}.session-delete:hover{color:var(--danger);background:#fb71851f}.session-delete svg{width:14px;height:14px}.side-nav-foot{flex-shrink:0;padding:10px 10px max(12px,env(safe-area-inset-bottom));border-top:1px solid var(--border);position:relative}.user-menu{position:absolute;bottom:calc(100% + 8px);left:10px;right:10px;z-index:920;padding:6px;border-radius:var(--radius-md);border:1px solid var(--border-strong);background:var(--surface-2);box-shadow:var(--shadow-lg);animation:menu-in .15s ease}@keyframes menu-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.user-menu-section{display:flex;flex-direction:column;gap:1px}.user-menu-label{padding:6px 10px 4px;font-size:.65rem;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--text-dim)}.user-menu-item{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border:none;border-radius:8px;background:transparent;color:var(--text-secondary);cursor:pointer;font-size:.88rem;text-align:left}.user-menu-item svg{flex-shrink:0;opacity:.85}.user-menu-item:hover{background:var(--hover-strong);color:var(--text)}.user-menu-item--active{background:var(--accent-soft);color:var(--text)}.user-menu-item--active svg{color:var(--accent)}.user-menu-item--danger:hover{background:#f871711f;color:var(--danger)}.user-menu-divider{height:1px;margin:4px 6px;background:var(--border)}.user-menu-btn{flex-shrink:0;width:34px;height:34px;border:none;border-radius:8px;background:transparent;color:var(--text-muted);cursor:pointer;display:grid;place-items:center}.user-menu-btn:hover,.user-menu-btn--open{background:var(--hover-strong);color:var(--text)}.user-logout{display:none}.user-card{display:flex;align-items:center;gap:10px;padding:10px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border)}.user-avatar{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;font-weight:700;font-size:.9rem;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#0c0a09}.user-meta{flex:1;min-width:0;display:flex;flex-direction:column}.user-email{font-size:.8rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-plan{font-size:.7rem;color:var(--text-dim)}.user-logout{border:none;background:transparent;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:8px}.user-logout:hover{color:var(--danger);background:#fb71851a}.chat-topbar{flex-shrink:0;display:flex;align-items:center;gap:8px;min-height:var(--topbar-h);padding:env(safe-area-inset-top) 16px 0;border-bottom:1px solid var(--border);background:var(--bg)}.chat-title-btn{border:none;background:transparent;color:inherit;cursor:pointer;padding:4px 8px;margin:-4px -8px;border-radius:8px;max-width:100%;text-align:left}.chat-title-btn:hover{background:var(--hover)}.chat-title-input{flex:1;min-width:0;max-width:320px;padding:6px 10px;border-radius:8px;border:1px solid var(--accent);background:var(--surface-2);color:var(--text);font-size:.95rem;font-weight:600;outline:none}.chat-topbar-title{flex:1;min-width:0;display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px}.chat-topbar-sub{font-size:.95rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.model-pill{font-size:.68rem;font-weight:600;padding:3px 8px;border-radius:var(--radius-pill);background:var(--ai-soft);color:var(--accent);border:1px solid rgba(138,180,248,.2)}.chat-topbar-busy{font-size:.75rem;color:var(--accent);animation:pulse-text 1.4s ease infinite}.icon-btn--stop{background:#f8717126;color:var(--danger)}.icon-btn--stop:hover{background:#f8717140}@keyframes pulse-text{0%,to{opacity:1}50%{opacity:.45}}.icon-btn{flex-shrink:0;width:40px;height:40px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text);cursor:pointer;display:grid;place-items:center}.icon-btn:hover{background:var(--hover)}.icon-btn--menu{display:grid}.icon-btn--accent{background:var(--accent-soft);color:var(--accent)}.icon-btn--accent:hover{background:#f59e0b38}.chat-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:8px 0 16px}.chat-thread{max-width:var(--thread-max);margin:0 auto;width:100%;padding:0 20px}.chat-welcome{margin:12vh auto 0;padding:0 4px}.welcome-hero{text-align:center;margin-bottom:32px}.welcome-icon{display:inline-grid;place-items:center;width:64px;height:64px;margin-bottom:20px;border-radius:20px;background:linear-gradient(145deg,var(--accent-soft),var(--ai-soft));border:1px solid var(--border);box-shadow:var(--shadow)}.chat-welcome h1{font-size:clamp(1.5rem,4vw,2rem);font-weight:600;letter-spacing:-.03em;margin:0 0 10px;background:linear-gradient(135deg,var(--text),var(--text-muted));-webkit-background-clip:text;background-clip:text;color:transparent}.chat-welcome p{color:var(--text-muted);line-height:1.55;font-size:.92rem;margin:0}.prompt-grid{display:grid;grid-template-columns:1fr;gap:10px}@media (min-width: 560px){.prompt-grid{grid-template-columns:1fr 1fr}}.prompt-chip{text-align:left;padding:14px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface-2);color:var(--text-secondary);cursor:pointer;font-size:.88rem;line-height:1.45;transition:border-color .15s,background .15s,color .15s}.prompt-chip:hover{border-color:#8ab4f859;background:var(--hover-strong);color:var(--text)}.msg{display:flex;gap:14px;padding:20px 0;max-width:100%}.msg--user{flex-direction:row-reverse}.msg-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}.msg--user .msg-body{align-items:flex-end}.msg-avatar{flex-shrink:0;width:28px;height:28px;border-radius:var(--radius-pill);display:grid;place-items:center;font-size:.72rem;font-weight:700;margin-top:2px}.msg-avatar--user{background:linear-gradient(135deg,var(--accent-amber),#d97706);color:#0c0a09}.msg-avatar--assistant{background:var(--ai-soft);color:var(--accent);border:1px solid rgba(138,180,248,.25);font-size:.55rem}.msg-bubble{position:relative;min-width:0;max-width:100%;padding:0;line-height:1.65;font-size:.9375rem}.msg--assistant .msg-bubble{padding:0;background:transparent;border:none}.msg-actions{display:flex;gap:2px;opacity:0;transition:opacity .15s}.msg:hover .msg-actions,.msg:focus-within .msg-actions{opacity:1}@media (hover: none){.msg-actions{opacity:1}}.msg-action-btn{border:none;width:32px;height:32px;border-radius:8px;cursor:pointer;display:grid;place-items:center;background:transparent;color:var(--text-dim);transition:background .12s,color .12s}.msg-action-btn:hover{background:var(--hover-strong);color:var(--text)}.msg-action-btn--danger:hover{background:#f8717126;color:var(--danger)}.msg-edit-input{width:100%;min-height:88px;resize:vertical;border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;background:var(--bg);color:inherit;font:inherit}.msg-edit-actions{display:flex;gap:8px;margin-top:10px}.msg-edit-save,.msg-edit-cancel{border:none;border-radius:8px;padding:8px 14px;cursor:pointer;font-size:.85rem;font-weight:500}.msg-edit-save{background:var(--accent);color:#0c0a09;font-weight:600}.msg-edit-cancel{background:var(--hover);color:var(--text)}.msg-edit-hint{margin-left:auto;font-size:.72rem;color:var(--text-dim);align-self:center}.msg-text{white-space:pre-wrap;word-break:break-word}.msg--user .msg-bubble{padding:12px 16px;border-radius:20px 20px 4px;background:var(--user-bg);border:1px solid var(--border);max-width:min(85%,520px)}.msg-attachments{display:flex;flex-direction:column;gap:8px;margin-bottom:10px}.msg-image{max-width:100%;max-height:260px;border-radius:var(--radius-sm);object-fit:contain}.msg-file{padding:10px 12px;border-radius:var(--radius-sm);background:var(--bg);border:1px solid var(--border);font-size:.82rem}.msg-file-name{font-weight:600;display:block;margin-bottom:6px}.msg-file-preview{margin:0;white-space:pre-wrap;word-break:break-word;font-family:var(--mono);font-size:.74rem;opacity:.9;max-height:120px;overflow:hidden}.msg-bubble--stream,.msg-text--stream{white-space:pre-wrap;word-break:break-word}.msg-action-btn--ok{color:var(--success)}.msg-bubble--typing{display:flex;gap:6px;padding:16px 20px}.msg-bubble--typing span{width:8px;height:8px;border-radius:50%;background:var(--accent-2);animation:pulse-dot 1.2s infinite ease-in-out}.msg-bubble--typing span:nth-child(2){animation-delay:.15s}.msg-bubble--typing span:nth-child(3){animation-delay:.3s}@keyframes pulse-dot{0%,80%,to{opacity:.25;transform:scale(.85)}40%{opacity:1;transform:scale(1)}}.session-busy-dot{flex-shrink:0;width:7px;height:7px;border-radius:50%;background:var(--accent-2);animation:pulse-dot 1.2s infinite}.chat-error{flex-shrink:0;margin:0 14px 8px;padding:12px 14px;border-radius:var(--radius-sm);background:#fb71851a;border:1px solid rgba(251,113,133,.2);color:var(--danger);font-size:.85rem;line-height:1.45}.composer-wrap{flex-shrink:0;max-width:var(--thread-max);margin:0 auto;width:100%;padding:0 20px max(16px,env(safe-area-inset-bottom))}.composer-box{border:1px solid var(--border-strong);border-radius:28px;background:var(--surface-2);overflow:visible;box-shadow:var(--shadow-composer)}.composer-main{display:flex;align-items:flex-end;gap:4px;padding:8px 10px 8px 6px}.composer-tools{display:flex;gap:2px;flex-shrink:0}.composer-tools--left{align-self:flex-end;padding-bottom:2px}.composer-tools--right{align-items:center;gap:6px;padding-bottom:2px}.composer-input{flex:1;min-width:0;display:block;resize:none;min-height:24px;max-height:200px;padding:10px 4px;border:none;background:transparent;color:var(--text);outline:none;line-height:1.5;font-size:.95rem}.composer-input::placeholder{color:var(--text-dim)}.model-select-btn{display:flex;align-items:center;gap:4px;padding:6px 10px;border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--surface);color:var(--text-muted);font-size:.75rem;font-weight:500;cursor:pointer;max-width:140px;white-space:nowrap}.model-select-btn span{overflow:hidden;text-overflow:ellipsis}.model-select-btn:hover:not(:disabled){background:var(--hover-strong);color:var(--text)}.model-select-dropdown,.composer-model-dropdown{position:relative}.model-select-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;border:none;background:transparent;cursor:default}.model-select-menu{position:absolute;bottom:calc(100% + 8px);right:0;z-index:60;min-width:240px;max-height:280px;overflow-y:auto;margin:0;padding:6px;list-style:none;border-radius:var(--radius-md);border:1px solid var(--border-strong);background:var(--surface);box-shadow:var(--shadow-lg)}.model-select-item{display:flex;flex-direction:column;gap:2px;width:100%;padding:10px 12px;border:none;border-radius:8px;background:transparent;color:var(--text);text-align:left;cursor:pointer;font:inherit}.model-select-item strong{font-size:.85rem;font-weight:600}.model-select-item span{font-size:.72rem;color:var(--text-dim)}.model-select-item:hover,.model-select-item--active{background:var(--hover-strong)}.composer-send{flex-shrink:0;width:36px;height:36px;border-radius:var(--radius-pill);border:none;background:var(--hover);color:var(--text-dim);cursor:pointer;display:grid;place-items:center;transition:background .15s,color .15s,transform .12s}.composer-send--ready{background:var(--text);color:var(--bg)}.composer-send--ready:hover:not(:disabled){transform:scale(1.05)}.composer-send--stop{background:var(--text);color:var(--bg)}.composer-send:disabled{opacity:.35;cursor:not-allowed}.composer-hint{margin:10px 4px 0;font-size:.68rem;color:var(--text-dim);text-align:center}.composer-attachments{display:flex;flex-wrap:wrap;gap:8px;padding:10px 12px 0}.attach-chip{display:flex;align-items:center;gap:8px;max-width:100%;padding:5px 10px 5px 5px;border-radius:var(--radius-sm);background:var(--bg);border:1px solid 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.platform-main{grid-column:1}.chat-host--hidden{display:none!important}.platform-main{height:100%;max-height:100dvh}.composer-model-hint{display:block}}@media (max-width: 899px){.app-root{display:flex;flex-direction:column}.side-nav--desktop-hidden,.side-nav--desktop-visible{position:fixed;opacity:1;width:min(var(--sidebar-w),92vw);transform:translate(-102%);pointer-events:none}.side-nav--open{transform:translate(0)!important;pointer-events:auto!important}.side-nav-hide{display:none}.side-nav-close{display:inline-flex}.sidebar-rail-btn{display:none!important}.icon-btn--menu{display:inline-flex}.icon-btn--sidebar-toggle{display:none}.chat-host,.platform-main{flex:1;min-height:0}.chat-scroll{padding:8px 0 16px}.chat-thread{padding:0 16px}.composer-wrap{padding-left:16px;padding-right:16px}}.platform-main{display:flex;flex-direction:column;min-height:0;height:100dvh;background:var(--bg-deep)}.platform-scroll{flex:1;overflow-y:auto;padding:20px 16px 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var(--border);background:var(--surface-2)}.pinned-strip-head{display:flex;align-items:center;gap:8px;margin-bottom:10px}.pinned-strip-label{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim)}.pinned-strip-count{font-size:.68rem;font-weight:600;padding:1px 6px;border-radius:var(--radius-pill);background:var(--accent-soft);color:var(--accent)}.pinned-strip-list{display:flex;flex-direction:column;gap:6px}.pinned-chip{display:flex;align-items:stretch;gap:4px;border-radius:8px;background:var(--hover);border:1px solid var(--border-subtle)}.pinned-chip-body{flex:1;min-width:0;display:flex;align-items:center;gap:8px;padding:8px 10px;border:none;background:transparent;color:var(--text);cursor:pointer;text-align:left;font:inherit}.pinned-chip-body:hover{background:var(--hover-strong);border-radius:8px 0 0 8px}.pinned-chip-role{flex-shrink:0;font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;padding:2px 6px;border-radius:4px}.pinned-chip-role--user{background:#f59e0b26;color:var(--accent-amber)}.pinned-chip-role--assistant{background:var(--ai-soft);color:var(--accent)}.pinned-chip-text{font-size:.82rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pinned-chip-unpin{flex-shrink:0;width:32px;border:none;background:transparent;color:var(--text-dim);cursor:pointer;font-size:1.1rem;border-radius:0 8px 8px 0}.pinned-chip-unpin:hover{background:#f871711f;color:var(--danger)}.msg--pinned .msg-bubble{outline:1px solid rgba(138,180,248,.25);outline-offset:4px;border-radius:8px}.msg-action-btn--ok .msg-action-btn svg,.msg-action-btn--ok svg{color:var(--accent)}.model-pill--agent{background:#fbbf2433;color:var(--accent-amber);border-color:var(--accent-amber-dim)}.platform-toggle{display:flex;align-items:center;gap:10px;margin:12px 0;cursor:pointer}.modal-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#000000a6;display:flex;align-items:center;justify-content:center;padding:16px}.modal-panel{width:min(520px,100%);max-height:85dvh;display:flex;flex-direction:column;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border-subtle)}.modal-head h3{margin:0;font-size:1.1rem}.modal-foot{display:flex;justify-content:flex-end;gap:12px;padding:14px 18px;border-top:1px solid var(--border-subtle)}.gh-picker-repo,.gh-picker-crumbs{padding:0 18px 8px;display:flex;gap:8px;align-items:center;flex-wrap:wrap}.gh-picker-list{flex:1;overflow-y:auto;padding:8px 18px;min-height:200px;max-height:50dvh}.gh-picker-row{display:flex;align-items:center;gap:8px;padding:4px 0}.gh-picker-name{flex:1;text-align:left;background:none;border:none;color:var(--text-primary);cursor:pointer;font:inherit;padding:4px 0}.gh-picker-name:hover{color:var(--accent-cyan)}.gh-picker-spacer{width:18px}.gh-picker-count{margin-left:auto;font-size:.8rem;color:var(--text-muted)}