:root {
        --chat-bg: #f5f4f0; --sidebar-bg: #eeede9; --header-bg: #f5f4f0;
        --text-primary: #1a1a1a; --text-secondary: #666666; --border-color: rgba(0,0,0,0.1);
        --accent: #b8975a; --accent-hover: #8b7045; --user-bubble: #e8e7e2;
        --input-bg: #ffffff; --modal-bg: #ffffff; --code-bg: #1e1e2e;
        --chip-bg: #e8e7e2; --chip-color: #1a1a1a; --chip-border: rgba(0,0,0,0.12);
        --send-btn-bg: #1a1a1a; --send-btn-hover: #000000;
    }
    body.dark {
        --chat-bg: #0d0d0d; --sidebar-bg: #161616; --header-bg: #161616;
        --text-primary: #f2f0ec; --text-secondary: #888888; --border-color: rgba(255,255,255,0.07);
        --accent: #b8975a; --accent-hover: #cba96a; --user-bubble: #1c1c1c;
        --input-bg: #0a0a0a; --modal-bg: #161616; --code-bg: #111111;
        --chip-bg: #1c1c1c; --chip-color: #f2f0ec; --chip-border: rgba(255,255,255,0.1);
        --send-btn-bg: #f2f0ec; --send-btn-hover: #ffffff;
    }
    body.theme-nord {
        --chat-bg: #2e3440; --sidebar-bg: #3b4252; --header-bg: #3b4252;
        --text-primary: #eceff4; --text-secondary: #8a9bbf; --border-color: rgba(255,255,255,0.08);
        --accent: #88c0d0; --accent-hover: #81a1c1; --user-bubble: #434c5e;
        --input-bg: #272e3b; --modal-bg: #3b4252; --code-bg: #232a35;
        --chip-bg: #434c5e; --chip-color: #eceff4; --chip-border: rgba(255,255,255,0.1);
        --send-btn-bg: #eceff4; --send-btn-hover: #ffffff;
    }
    body.theme-synthwave {
        --chat-bg: #1a1030; --sidebar-bg: #231642; --header-bg: #231642;
        --text-primary: #f8f8f2; --text-secondary: #b0a4c8; --border-color: rgba(255,255,255,0.07);
        --accent: #ff79c6; --accent-hover: #bd93f9; --user-bubble: #2d1b4e;
        --input-bg: #120d22; --modal-bg: #231642; --code-bg: #110a20;
        --chip-bg: #2d1b4e; --chip-color: #f8f8f2; --chip-border: rgba(255,255,255,0.1);
        --send-btn-bg: #f8f8f2; --send-btn-hover: #ffffff;
    }
    body.theme-solarized {
        --chat-bg: #002b36; --sidebar-bg: #073642; --header-bg: #073642;
        --text-primary: #fdf6e3; --text-secondary: #839496; --border-color: rgba(255,255,255,0.08);
        --accent: #2aa198; --accent-hover: #268bd2; --user-bubble: #0f3d4a;
        --input-bg: #001e27; --modal-bg: #073642; --code-bg: #001e27;
        --chip-bg: #0f3d4a; --chip-color: #fdf6e3; --chip-border: rgba(255,255,255,0.1);
        --send-btn-bg: #fdf6e3; --send-btn-hover: #ffffff;
    }
    * { box-sizing: border-box; margin: 0; padding: 0; font-family: 'DM Sans', system-ui, sans-serif; }
    html, body { height: 100%; height: 100dvh; overflow: hidden; background: var(--chat-bg); color: var(--text-primary); transition: background .3s, color .3s; }

    /* ── New version banner ───────────────────────── */
    #update-toast { position:fixed; top:0; left:0; right:0; transform:translateY(-100%); z-index:9999; display:flex; align-items:center; justify-content:center; gap:.75rem; background:#1a1608; border-bottom:1px solid rgba(184,151,90,.45); padding:.55rem 1rem; font-size:.82rem; color:#f2f0ec; transition:transform .3s cubic-bezier(0.4,0,0.2,1); white-space:nowrap; }
    #update-toast.visible { transform:translateY(0); }
    #update-toast svg { flex-shrink:0; color:var(--accent); }
    #update-reload-btn { background:var(--accent); color:#fff; border:none; border-radius:7px; padding:.38rem .85rem; font-size:.8rem; font-weight:600; cursor:pointer; font-family:inherit; transition:background .2s; }
    #update-reload-btn:hover { background:var(--accent-hover); }
    #update-dismiss-btn { background:none; border:none; color:var(--text-secondary); cursor:pointer; font-size:1.1rem; line-height:1; padding:.1rem .2rem; transition:color .2s; }
    #update-dismiss-btn:hover { color:var(--text-primary); }

    /* ── PWA install banner ───────────────────────── */
    #install-toast { position:fixed; bottom:1rem; left:50%; transform:translate(-50%,calc(100% + 2rem)); z-index:9998; display:none; align-items:center; gap:.75rem; background:#1a1608; border:1px solid rgba(184,151,90,.45); border-radius:10px; padding:.6rem .9rem; font-size:.82rem; color:#f2f0ec; box-shadow:0 10px 30px rgba(0,0,0,.45); transition:transform .3s cubic-bezier(0.4,0,0.2,1); white-space:nowrap; max-width:calc(100vw - 2rem); }
    #install-toast.visible { display:flex; transform:translate(-50%,0); }
    #install-toast svg { flex-shrink:0; color:var(--accent); }
    #install-accept-btn { background:var(--accent); color:#fff; border:none; border-radius:7px; padding:.38rem .85rem; font-size:.8rem; font-weight:600; cursor:pointer; font-family:inherit; transition:background .2s; }
    #install-accept-btn:hover { background:var(--accent-hover); }
    #install-dismiss-btn { background:none; border:none; color:var(--text-secondary); cursor:pointer; font-size:1.1rem; line-height:1; padding:.1rem .2rem; transition:color .2s; }
    #install-dismiss-btn:hover { color:var(--text-primary); }

    /* ── Forge logo gold animation ───────────────── */
    @keyframes forgePulse { 0%,100%{filter:drop-shadow(0 0 6px rgba(255,215,0,0.5));transform:scale(1);} 50%{filter:drop-shadow(0 0 18px rgba(255,140,0,0.7));transform:scale(1.06);} }
    @keyframes forgeSpin { from{transform:rotate(0deg);} to{transform:rotate(360deg);} }
    @keyframes forgeGlow { 0%,100%{opacity:.7;} 50%{opacity:1;} }
    .forge-logo-spin { animation: forgeSpin 1.8s linear infinite; transform-origin: center; }
    .forge-logo-pulse { animation: forgePulse 2s ease-in-out infinite; }
    .thinking-row { display:flex; align-items:center; gap:.65rem; }
    .thinking-row .forge-spin-wrap { width:32px; height:32px; flex-shrink:0; }
    .thinking-msg { animation: forgeGlow 1.8s ease-in-out infinite; color: var(--text-secondary); font-style: italic; font-size:.83rem; }
    .stream-cursor { display:flex; align-items:center; gap:.35rem; padding:.4rem 0 .15rem; color:var(--text-secondary); font-size:.72rem; font-style:italic; }

    /* ── Init loading screen (shown until auth resolves) ── */
    #init-loading {
        position: fixed; inset: 0; z-index: 9000;
        background: #0a0a0a;
        display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.25rem;
        transition: opacity .35s ease;
    }
    #init-loading.fade-out { opacity: 0; pointer-events: none; }
    .init-logo-wrap { position: relative; width: 52px; height: 52px; }
    @keyframes initSpin { to { transform: rotate(360deg); } }
    @keyframes initPulse { 0%,100%{opacity:.7} 50%{opacity:1} }
    .init-spinner {
        position: absolute; inset: 0;
        border: 2px solid rgba(184,151,90,.18);
        border-top-color: #b8975a;
        border-radius: 50%;
        animation: initSpin 1s linear infinite;
    }
    .init-logo { position: absolute; inset: 8px; display: flex; align-items: center; justify-content: center; animation: initPulse 2s ease-in-out infinite; }
    .init-label { font-size: .78rem; color: rgba(184,151,90,.6); letter-spacing: .12em; text-transform: uppercase; font-weight: 600; }

    /* ── Login ───────────────────────────────── */
    #login-overlay {
        position: fixed; inset: 0; z-index: 300;
        background: #0a0a0a;
        overflow-y: auto;
        display: none; flex-direction: column; align-items: center;
    }
    /* ── Landing nav ── */
    .lp-nav {
        width: 100%; max-width: 1100px; padding: 1.25rem 2rem;
        display: flex; align-items: center; justify-content: space-between;
        flex-shrink: 0;
    }
    .lp-nav-brand { display: flex; align-items: center; gap: .65rem; }
    .lp-nav-brand span { font-family: 'Cormorant Garamond', Georgia, serif; font-size: 1.25rem; font-weight: 600; color: #f2f0ec; letter-spacing: .04em; }
    .lp-nav-cta { background: rgba(184,151,90,.12); border: 1px solid rgba(184,151,90,.3); color: #b8975a; font-size: .8rem; font-weight: 600; padding: .45rem 1rem; border-radius: 8px; cursor: pointer; transition: all .2s; letter-spacing: .04em; }
    .lp-nav-cta:hover { background: rgba(184,151,90,.22); }

    /* ── Hero ── */
    .lp-hero {
        width: 100%; max-width: 780px; padding: 3rem 2rem 2rem;
        text-align: center; flex-shrink: 0;
    }
    .lp-badge { display: inline-flex; align-items: center; gap: .5rem; background: rgba(184,151,90,.08); border: 1px solid rgba(184,151,90,.2); color: #b8975a; font-size: .72rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; padding: .35rem .9rem; border-radius: 20px; margin-bottom: 1.75rem; }
    .lp-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: #b8975a; animation: pulse 2s infinite; }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.4)} }
    .lp-h1 { font-family: 'Cormorant Garamond', Georgia, serif; font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 600; color: #f2f0ec; line-height: 1.1; letter-spacing: .01em; margin-bottom: 1.25rem; }
    .lp-h1 em { font-style: normal; background: linear-gradient(90deg, #FFD700, #FF8C00); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
    .lp-sub { color: rgba(242,240,236,.55); font-size: 1rem; line-height: 1.75; max-width: 580px; margin: 0 auto 2.25rem; }

    /* ── Sign-in card ── */
    .login-card {
        background: rgba(255,255,255,.03); backdrop-filter: blur(25px);
        border: 1px solid rgba(184,151,90,0.25); border-radius: 14px;
        padding: 1.75rem 1.75rem; text-align: center; max-width: 380px; width: calc(100% - 2rem);
        box-shadow: 0 20px 80px rgba(0,0,0,.5); margin: 0 auto 3rem;
    }
    .login-card p { color: rgba(242,240,236,.5); font-size: .8rem; margin-bottom: 1rem; line-height: 1.5; }
    .gh-btn {
        background: #24292e; color: #fff; border: 1px solid rgba(255,255,255,.1);
        padding: .85rem 1.5rem; border-radius: 10px; font-weight: 600; font-size: .95rem;
        cursor: pointer; width: 100%; display: flex; align-items: center; justify-content: center;
        gap: .7rem; transition: background .2s;
    }
    .gh-btn:hover { background: #444c56; }
    .lp-free-note { font-size: .72rem; color: rgba(255,255,255,.3); margin-top: .9rem; }
    .lp-free-note strong { color: #b8975a; }

    /* ── Features grid ── */
    .lp-features {
        width: 100%; max-width: 1000px; padding: 0 1.5rem 3rem;
        display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem;
        flex-shrink: 0;
    }
    .lp-feat {
        background: rgba(255,255,255,.025); border: 1px solid rgba(255,255,255,.07);
        border-radius: 12px; padding: 1.4rem 1.5rem;
        transition: border-color .2s, background .2s;
    }
    .lp-feat:hover { border-color: rgba(184,151,90,.25); background: rgba(184,151,90,.03); }
    .lp-feat-icon { font-size: 1.4rem; margin-bottom: .75rem; }
    .lp-feat h3 { font-size: .92rem; font-weight: 700; color: #f2f0ec; margin-bottom: .4rem; }
    .lp-feat p { font-size: .8rem; color: rgba(242,240,236,.45); line-height: 1.6; margin: 0; }

    /* ── Models strip ── */
    .lp-models {
        width: 100%; max-width: 1000px; padding: 0 1.5rem 3rem;
        flex-shrink: 0;
    }
    .lp-models-label { text-align: center; font-size: .7rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: rgba(255,255,255,.25); margin-bottom: 1.25rem; }
    .lp-models-row { display: flex; flex-wrap: wrap; gap: .6rem; justify-content: center; }
    .lp-model-chip { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); color: rgba(242,240,236,.5); font-size: .74rem; font-weight: 500; padding: .35rem .85rem; border-radius: 20px; }

    /* ── Divider ── */
    .lp-divider { width: 100%; max-width: 1000px; height: 1px; background: rgba(255,255,255,.06); margin: 0 auto 3rem; flex-shrink: 0; }

    /* ── Footer ── */
    .lp-footer { width: 100%; text-align: center; padding: 1.5rem 1rem 2rem; color: rgba(255,255,255,.2); font-size: .72rem; flex-shrink: 0; }
    .lp-footer a { color: rgba(184,151,90,.6); text-decoration: none; }
    .lp-footer a:hover { color: #b8975a; }

    /* ── App shell ───────────────────────────── */
    /* position:fixed + explicit edges pins to the visual viewport —
       most reliable full-screen approach across Android & iOS.
       Avoids 100dvh/percentage-chain issues on Android Chrome.
       On iOS 15+ fixed bottom:0 tracks the visual viewport so the
       app automatically shrinks when the keyboard appears. */
    .app-shell { display: flex; position: fixed; top: 0; left: 0; right: 0; bottom: 0; overflow: hidden; }

    /* ── Sidebar ─────────────────────────────── */
    #sidebar {
        width: 270px; flex-shrink: 0;
        background: var(--sidebar-bg); border-right: 1px solid var(--border-color);
        display: flex; flex-direction: column; overflow: hidden;
        transition: transform .25s ease, width .25s ease, opacity .25s ease;
        z-index: 50;
    }
    #sidebar.hidden { width: 0; opacity: 0; pointer-events: none; }

    /* Mobile: sidebar overlays and hidden by default */
    @media (max-width: 700px) {
        #sidebar { position: fixed; top: 0; left: 0; height: 100%; padding-top: env(safe-area-inset-top); z-index: 50; box-shadow: 4px 0 20px rgba(0,0,0,.25); transform: translateX(0); }
        #sidebar.hidden { transform: translateX(-100%); width: 270px; opacity: 1; pointer-events: none; }
        #sidebar.hidden * { pointer-events: none; }
        #toggle-sidebar { display: flex !important; }
    }
    #sidebar-backdrop { display: none; position: fixed; inset: 0; z-index: 49; background: rgba(0,0,0,.35); }
    #sidebar-backdrop.visible { display: block; }

    .sidebar-top {
        padding: 0; border-bottom: none; flex-shrink: 0; overflow: hidden;
    }
    /* sidebar-top user pill removed; kept selector stub to avoid errors */
    /* Sidebar navigation */
    .sidebar-nav { padding: .4rem .5rem; border-bottom: 1px solid var(--border-color); flex-shrink: 0; display: flex; flex-direction: column; gap: 2px; }
    .snav-item { display: flex; align-items: center; gap: 8px; width: 100%; padding: .48rem .65rem; border-radius: 7px; border: none; background: none; color: var(--text-secondary); font-size: .8rem; font-weight: 500; cursor: pointer; text-align: left; transition: all .15s; font-family: inherit; }
    .snav-item:hover { background: rgba(128,128,128,.08); color: var(--text-primary); }
    .snav-item.active { background: rgba(184,151,90,.12); color: var(--accent); font-weight: 600; }
    .snav-item .material-icons-round { font-size: 16px; flex-shrink: 0; }
    /* Repos section inside sidebar */
    #sidebar-repos-section { display: flex; flex-direction: column; flex: 1; overflow: hidden; }
    .sidebar-repos-hd { display: flex; align-items: center; justify-content: space-between; padding: .55rem .85rem .1rem; flex-shrink: 0; }
    .sidebar-repos-hd h2 { font-size: .65rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-secondary); }
    /* Side panels (Billing / Usage) rendered in main area */
    .side-panel { display: none; flex: 1; min-height: 0; overflow-y: auto; overflow-x: hidden; padding: 2rem 2.5rem; background: var(--chat-bg); }
    .side-panel-hd { margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border-color); }
    .side-panel-hd h2 { font-family: 'Cormorant Garamond', Georgia, serif; font-size: 1.45rem; font-weight: 600; color: var(--text-primary); margin: 0 0 .2rem; letter-spacing: .02em; }
    .side-panel-hd p { color: var(--text-secondary); font-size: .8rem; margin: 0; }
    @media (max-width: 600px) { .side-panel { padding: 1.25rem 1rem; } }

    .user-pill {
        display: flex; align-items: center; gap: 6px;
        padding: .45rem .65rem; background: var(--chat-bg);
        border-radius: 8px; border: 1px solid var(--border-color);
        font-size: .78rem;
    }
    .user-pill img { width: 20px; height: 20px; border-radius: 50%; }
    .user-pill span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

    .repo-search-wrap { padding: .5rem .65rem .3rem; flex-shrink: 0; }
    .repo-search {
        width: 100%; padding: .4rem .65rem;
        background: var(--chat-bg); border: 1px solid var(--border-color);
        border-radius: 8px; color: var(--text-primary); font-size: .8rem;
        outline: none; transition: border-color .2s;
    }
    .repo-search:focus { border-color: var(--accent); }

    /* Branch panel */
    .branch-panel {
        padding: .5rem .65rem .6rem;
        border-bottom: 1px solid var(--border-color); flex-shrink: 0;
        font-size: .78rem;
    }
    .branch-panel label { color: var(--text-secondary); display: block; margin-bottom: .3rem; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }
    .branch-row { display: flex; align-items: center; gap: 6px; }
    .branch-select {
        flex: 1; background: var(--chat-bg); border: 1px solid var(--border-color);
        color: var(--text-primary); border-radius: 6px; padding: .35rem .5rem;
        font-size: .78rem; outline: none; min-width: 0;
    }
    .branch-toggle {
        display: flex; align-items: center; gap: 5px; cursor: pointer;
        font-size: .75rem; color: var(--text-secondary); user-select: none;
    }
    .branch-toggle input[type=checkbox] { cursor: pointer; accent-color: var(--accent); }

    #repo-list { flex: 1; overflow-y: auto; padding: .35rem .5rem; display: flex; flex-direction: column; gap: 2px; }
    .repo-section-label { padding: .45rem .6rem .2rem; font-size: .65rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-secondary); }
    .repo-item {
        display: flex; align-items: center; padding: .5rem .5rem .5rem .65rem;
        border-radius: 8px; cursor: pointer; font-size: .8rem;
        border: 1px solid transparent; color: var(--text-primary); gap: 5px;
        transition: background .12s;
    }
    .repo-item:hover { background: var(--chat-bg); }
    .repo-item.active { background: var(--chat-bg); border-color: var(--border-color); font-weight: 600; }
    .repo-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .fav-btn { background: none; border: none; cursor: pointer; color: var(--text-secondary); font-size: .85rem; padding: 2px 3px; border-radius: 4px; flex-shrink: 0; transition: color .15s, transform .1s; line-height: 1; }
    .fav-btn:hover { transform: scale(1.2); }
    .fav-btn.starred { color: #f59e0b; }

    /* ── Main content ────────────────────────── */
    .main-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; position: relative; }

    header {
        background: var(--header-bg); border-bottom: 1px solid var(--border-color);
        padding: 0 1rem; padding-top: env(safe-area-inset-top); height: calc(52px + env(safe-area-inset-top));
        display: flex; align-items: center; justify-content: space-between; flex-shrink: 0;
    }
    .header-left { display: flex; align-items: center; gap: .35rem; flex-shrink: 0; }
    .header-right { display: flex; align-items: center; gap: .35rem; flex-shrink: 0; }

    .icon-btn {
        background: transparent; border: none; color: var(--text-secondary);
        cursor: pointer; padding: .35rem; border-radius: 6px;
        display: flex; align-items: center; justify-content: center;
        transition: background .12s, color .12s; flex-shrink: 0; flex-grow: 0;
    }
    .icon-btn:hover { background: var(--sidebar-bg); color: var(--text-primary); }
    .icon-btn.active { background: var(--chat-bg); color: var(--accent); }
    .icon-btn .material-icons-round { font-size: 19px; }
    .icon-btn svg { width: 17px; height: 17px; }

    /* ── Input meta row (model selector + send/plus in one bar) ── */
    .input-wrap { display: flex; flex-direction: column; width: 100%; max-width: 760px; gap: .35rem; }
    .input-meta {
        display: flex; align-items: center; padding: 0 .1rem; gap: .35rem;
        justify-content: space-between;
    }
    .input-meta-center {
        display: flex; align-items: center; gap: .35rem;
        flex: 1; min-width: 0; overflow: hidden;
    }
    /* separator between mode btn and model selector */
    .input-meta-sep { font-size:.75rem; color:var(--text-secondary); flex-shrink:0; padding: 0 2px; }
    #model-selector {
        background: transparent; border: none;
        color: var(--accent); border-radius: 6px; padding: .1rem .2rem;
        font-size: .78rem; cursor: pointer; outline: none;
        min-width: 0; flex: 1; max-width: 220px;
        transition: color .15s ease;
    }
    #model-selector:hover { color: var(--text-primary); }
    #model-selector option { background: var(--sidebar-bg); color: var(--text-primary); }
    /* Plus button in meta bar */
    .input-meta-plus {
        display:flex; align-items:center; justify-content:center;
        width:30px; height:30px; flex-shrink:0; cursor:pointer;
        color:var(--text-secondary); border-radius:8px;
        transition:color .15s, background .15s;
        border: 1px solid var(--border-color); background: transparent;
    }
    .input-meta-plus:hover { color:var(--accent); border-color:var(--accent); }
    /* Send button in meta bar */
    .input-meta-send {
        background: var(--send-btn-bg); border: none; color: var(--chat-bg);
        cursor: pointer; padding: .38rem .75rem; border-radius: 8px;
        transition: background .2s; flex-shrink: 0;
        display: flex; align-items: center; justify-content: center;
        height: 30px;
    }
    .input-meta-send:hover { background: var(--send-btn-hover); }
    body.dark .input-meta-send, body.theme-nord .input-meta-send,
    body.theme-synthwave .input-meta-send, body.theme-solarized .input-meta-send { color: #0d0d0d; }
    .input-meta-send:disabled { opacity: .4; cursor: not-allowed; }
    .input-meta-send.busy {
        background: var(--accent) !important;
        color: #0d0d0d !important;
        animation: sendBusy 1.6s ease-in-out infinite;
    }
    @keyframes sendBusy {
        0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(184,151,90,.5); }
        50% { opacity: .8; box-shadow: 0 0 0 5px rgba(184,151,90,0); }
    }
    @media (max-width: 600px) {
        .input-meta { flex-wrap: nowrap; gap: .25rem; align-items: center; }
        .input-meta-center { flex: 1; min-width: 0; overflow: hidden; display: flex; align-items: center; gap: .2rem; }
        #model-selector { font-size: .68rem; min-width: 0; flex: 1; max-width: 140px; }
        .ctx-indicator { flex-shrink: 0; }
        .input-meta-sep { display: none; }
        .mode-label { display: none; }
    }
    @media (max-width: 380px) {
        .input-meta-center { flex-wrap: wrap; }
        #model-selector { max-width: 100%; }
    }
    /* ── Git Status Bar ──────────────────────────────── */
    .git-status-bar {
        display: none; align-items: center; gap: .45rem;
        padding: .28rem 1rem;
        background: var(--chat-bg); border-top: 1px solid var(--border-color);
        font-size: .74rem; flex-shrink: 0; overflow: hidden;
    }
    @media (min-width: 600px) { .git-status-bar { padding: .28rem 1.5rem; } }
    .git-status-bar.visible { display: flex; }
    .gsb-icon { color: var(--text-muted); font-size: 15px !important; flex-shrink: 0; }
    .gsb-base { color: var(--text-secondary); white-space: nowrap; flex-shrink: 0; }
    .gsb-arrow { color: var(--text-muted); flex-shrink: 0; font-size: .8em; margin: 0 .05rem; }
    .gsb-branch {
        color: var(--accent-blue); white-space: nowrap;
        overflow: hidden; text-overflow: ellipsis;
        max-width: 300px; flex-shrink: 1; font-weight: 500;
        cursor: pointer;
    }
    /* Branch name tooltip (tap-to-reveal on mobile) */
    #branch-name-tooltip {
        position: fixed; z-index: 9999;
        background: var(--modal-bg); border: 1px solid var(--border-color);
        border-radius: 8px; padding: .35rem .65rem;
        font-size: .78rem; font-weight: 500; color: var(--accent-blue);
        white-space: nowrap; pointer-events: none;
        box-shadow: 0 4px 16px rgba(0,0,0,.25);
        opacity: 0; transform: translateY(-4px);
        transition: opacity .15s ease, transform .15s ease;
    }
    #branch-name-tooltip.visible { opacity: 1; transform: translateY(0); }
    .gsb-chip {
        display: inline-flex; align-items: center;
        padding: .08rem .4rem; border-radius: 10px;
        font-size: .68rem; font-weight: 700; flex-shrink: 0;
        font-variant-numeric: tabular-nums; letter-spacing: .01em;
    }
    .gsb-add { background: rgba(46,160,67,.13); color: #3fb950; cursor: help; }
    .gsb-del { background: rgba(248,81,73,.13); color: #f85149; cursor: help; }
    #gsb-chip-tooltip {
        position: fixed; z-index: 9999;
        background: var(--modal-bg); border: 1px solid var(--border-color);
        border-radius: 8px; padding: .45rem .75rem;
        font-size: .76rem; line-height: 1.5; color: var(--text-primary);
        white-space: pre-line; pointer-events: none; max-width: 280px;
        box-shadow: 0 4px 20px rgba(0,0,0,.3);
        opacity: 0; transform: translateY(4px);
        transition: opacity .15s ease, transform .15s ease;
    }
    #gsb-chip-tooltip.visible { opacity: 1; transform: translateY(0); }
    .gsb-pr-btn {
        margin-left: auto; flex-shrink: 0;
        padding: .18rem .6rem; border-radius: 5px;
        font-size: .71rem; font-weight: 600;
        border: 1px solid var(--border-color);
        background: transparent; color: var(--text-secondary);
        cursor: pointer; text-decoration: none;
        transition: color .15s, border-color .15s, background .15s;
        white-space: nowrap;
    }
    .gsb-pr-btn:hover { color: var(--text-primary); border-color: var(--text-secondary); }
    .gsb-pr-btn.create { border-color: var(--accent); color: var(--accent); }
    .gsb-pr-btn.create:hover { background: rgba(184,151,90,.1); }
    .gsb-switch-btn { flex-shrink:0; display:inline-flex; align-items:center; gap:.25rem; padding:.25rem .6rem; font-size:.72rem; font-weight:600; border-radius:6px; border:1px solid var(--border-color); background:none; color:var(--text-secondary); cursor:pointer; font-family:inherit; transition:color .2s,border-color .2s; white-space:nowrap; }
    .gsb-switch-btn:hover { color:var(--text-primary); border-color:var(--text-secondary); }
    .gsb-switch-btn:disabled { opacity:.4; cursor:not-allowed; }
    /* Switch-branch modal */
    .sb-search { width:100%; box-sizing:border-box; background:var(--input-bg); border:1px solid var(--border-color); border-radius:8px; color:var(--text-primary); padding:.45rem .65rem; font-size:.82rem; outline:none; margin-bottom:.6rem; }
    .sb-search:focus { border-color:var(--accent); }
    .sb-branch-list { list-style:none; padding:0; margin:0 0 .5rem; max-height:210px; overflow-y:auto; border:1px solid var(--border-color); border-radius:8px; }
    .sb-branch-item { display:flex; align-items:center; justify-content:space-between; gap:.5rem; padding:.45rem .75rem; cursor:pointer; border-bottom:1px solid var(--border-color); transition:background .15s; font-size:.8rem; font-family:'Consolas','Fira Code',monospace; }
    .sb-branch-item:last-child { border-bottom:none; }
    .sb-branch-item:hover:not(.sb-current):not(.sb-disabled) { background:rgba(255,255,255,.04); }
    .sb-branch-item.sb-current { color:var(--accent); cursor:default; font-weight:600; }
    .sb-branch-item.sb-disabled { opacity:.45; cursor:not-allowed; }
    .sb-tick { color:var(--accent); font-size:.85rem; }
    .sb-section-sep { border:none; border-top:1px solid var(--border-color); margin:1rem 0; }
    .sb-warn { display:flex; align-items:flex-start; gap:.45rem; background:rgba(248,81,73,.08); border:1px solid rgba(248,81,73,.25); border-radius:8px; padding:.55rem .75rem; font-size:.8rem; color:#f85149; margin-bottom:.9rem; }
    .sb-msg { font-size:.8rem; min-height:1.1em; margin-top:.5rem; }
    .sb-msg.error { color:#f85149; }
    .sb-msg.ok { color:#3fb950; }
    @media (max-width: 600px) {
        .git-status-bar { gap: .3rem; }
        .gsb-branch { max-width: 110px; }
    }

    /* ── Chat ────────────────────────────────── */
    #chat-container {
        flex: 1; overflow-y: auto; padding: 1rem 0.25rem;
        display: flex; flex-direction: column; gap: 1.25rem; scroll-behavior: smooth;
    }
    @media (min-width: 600px) { #chat-container { padding: 1.5rem 0.5rem; } }

    .message-wrapper { display: flex; max-width: 760px; margin: 0 auto; width: 100%; }
    .message-wrapper.user { justify-content: flex-end; }
    .message-wrapper.ai { justify-content: flex-start; }
    .message {
        max-width: 88%; padding: .8rem 1rem; border-radius: 14px;
        line-height: 1.65; font-size: .9rem; animation: popIn .18s ease;
    }
    @media (min-width: 600px) { .message { max-width: 82%; } }
    @keyframes popIn { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }
    .message.user { background: var(--user-bubble); border-bottom-right-radius: 4px; }
    .message.ai { background: transparent; border-bottom-left-radius: 4px; }
    .message.ai p { margin-bottom: .6rem; } .message.ai p:last-child { margin-bottom: 0; }
    .message.ai pre { background: var(--code-bg); color: #cdd6f4; padding: .85rem; border-radius: 8px; overflow-x: auto; margin: .65rem 0; font-size: .82em; border: 1px solid var(--border-color); }
    .message.ai code { font-family: 'Consolas','Fira Code',monospace; font-size: .83em; background: var(--code-bg); color: #a6e3a1; padding: .12em .35em; border-radius: 4px; }
    .message.ai pre code { background: none; color: inherit; padding: 0; }
    .copy-code-btn { position: absolute; top: .45rem; right: .45rem; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); color: var(--text-secondary); border-radius: 4px; padding: .2rem .35rem; cursor: pointer; opacity: 0; transition: opacity .2s; line-height: 1; display: flex; align-items: center; }
    .message.ai pre:hover .copy-code-btn { opacity: 1; }
    .copy-code-btn:hover { background: rgba(255,255,255,.15); color: var(--text-primary); }
    .msg-action-btn { background: none; border: 1px solid var(--border-color); border-radius: 4px; color: var(--text-secondary); cursor: pointer; padding: .25rem .35rem; display: flex; align-items: center; opacity: 0; transition: opacity .2s, background .2s; line-height: 1; margin-top: .4rem; }
    .message-wrapper:hover .msg-action-btn { opacity: 1; }
    .msg-action-btn:hover { background: var(--chip-bg); color: var(--text-primary); }
    .msg-time-divider {
        text-align: center; font-size: .625rem; letter-spacing: .04em;
        color: var(--text-muted, #666); opacity: .6;
        margin: .15rem 0 -.35rem; user-select: none; pointer-events: none;
    }
    .message.ai ul, .message.ai ol { margin-left: 1.4rem; margin-bottom: .6rem; }
    .message.ai details { border: 1px solid var(--border-color); border-radius: 6px; margin: .5rem 0; overflow: hidden; }
    .message.ai summary { cursor: pointer; padding: .35rem .55rem; font-size: .8rem; color: var(--text-secondary); user-select: none; list-style: none; display: flex; align-items: center; gap: .4rem; }
    .message.ai summary::-webkit-details-marker { display: none; }
    .message.ai summary::before { content: '▶'; font-size: .6rem; transition: transform .2s; display: inline-block; }
    .message.ai details[open] > summary::before { transform: rotate(90deg); }
    .message.ai details[open] > summary { border-bottom: 1px solid var(--border-color); }
    .message.ai details > :not(summary) { padding: .3rem .55rem .5rem; }
    .message.thinking { color: var(--text-secondary); font-style: italic; font-size: .83rem; }
    .branch-switch-notice { display: flex; align-items: center; gap: .5rem; max-width: 760px; margin: .6rem auto; width: 100%; color: var(--text-secondary); font-size: .75rem; }
    .branch-switch-notice::before, .branch-switch-notice::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }
    .branch-switch-notice span { white-space: nowrap; padding: 0 .4rem; }

    /* ── Session tabs ─────────────────────────── */
    .tabs-bar {
        display: flex; align-items: center;
        padding: 0 .5rem; background: var(--sidebar-bg);
        border-bottom: 1px solid var(--border-color);
        min-height: 36px; flex-shrink: 0; overflow: hidden;
    }
    /* Only the tabs list area scrolls; layout buttons stay pinned right */
    .tabs-scroll-area {
        flex: 1; min-width: 0; overflow-x: auto;
        display: flex; align-items: center; gap: 2px;
    }
    .tabs-scroll-area::-webkit-scrollbar { height: 3px; }
    .tabs-scroll-area::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 2px; }
        .session-tab {
        display: flex; align-items: center; gap: 5px;
        padding: 0 .65rem 0 .85rem; height: 32px; border-radius: 6px 6px 0 0;
        font-size: .75rem; font-weight: 500; cursor: pointer; white-space: nowrap;
        position: relative; /* For absolute positioning of pin icon */
        border: 1px solid transparent; border-bottom: none;
        color: var(--text-secondary); background: transparent;
        transition: background .12s, color .12s; user-select: none;
    }
    .session-pin-icon {
        font-size: 13px;
        cursor: pointer;
        color: var(--text-secondary);
        opacity: 0;
        transition: opacity .12s, color .12s;
        width: 16px;
        height: 16px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        line-height: 1;
        overflow: hidden;
    }

    .tab-close {
        margin-left: 4px;
    }

    @media (max-width: 600px) {
        .session-pin-icon {
            font-size: 6px !important;
        }
        .session-pin-icon .material-icons-round {
            font-size: 6px !important;
            width: 6px !important;
            height: 6px !important;
            line-height: 6px !important;
            vertical-align: middle !important;
        }
    }
    .session-tab:hover .session-pin-icon, .session-tab.active .session-pin-icon {
        opacity: .5;
    }
    .session-tab:hover .session-pin-icon:hover {
        opacity: 1;
    }
    .session-pin-icon.pinned {
        color: var(--link-color); /* Highlight color when pinned */
        opacity: 1;
    }

    .session-tab:hover { background: var(--chat-bg); color: var(--text-primary); }
    .session-tab.active { background: var(--chat-bg); color: var(--text-primary); border-color: var(--border-color); }
    .tab-close { background: none; border: none; cursor: pointer; color: var(--text-secondary); font-size: 1rem; padding: 2px 5px; border-radius: 3px; line-height: 1; font-weight: 600; }
    .tab-close:hover { background: var(--border-color); color: var(--text-primary); }
    .tab-new { background: none; border: none; cursor: pointer; color: var(--text-secondary); font-size: 1rem; padding: 0 .35rem; line-height: 1; border-radius: 4px; display:flex; align-items:center; }
    .tab-new:hover { background: var(--chat-bg); color: var(--text-primary); }
    .preview-btns { display: flex; gap: 4px; align-items: center; padding: 0 .5rem; flex-shrink: 0; }
    .preview-toggle-btn {
        display: flex; align-items: center; gap: 4px;
        font-family: 'DM Sans', sans-serif; font-size: 12px;
        color: var(--accent-color);
        background: rgba(184,151,90,0.1);
        border: 1px solid rgba(184,151,90,0.3);
        border-radius: 4px; padding: 3px 10px;
        cursor: pointer; transition: background .12s;
    }
    .preview-toggle-btn:hover { background: rgba(184,151,90,0.2); }
    .preview-toggle-btn.active { background: rgba(184,151,90,0.25); border-color: var(--accent-color); }
    .preview-toggle-label { letter-spacing: 0.02em; }
    .preview-open-external {
        display: flex; align-items: center;
        color: var(--text-secondary);
        border: 1px solid var(--border-color);
        border-radius: 4px; padding: 3px 6px;
        cursor: pointer; text-decoration: none; transition: color .12s, border-color .12s;
    }
    .preview-open-external:hover { color: var(--accent-color); border-color: var(--accent-color); }
    .term-toggle-btn {
        background: none; border: 1px solid transparent; cursor: pointer;
        color: var(--text-secondary); border-radius: 5px; padding: 2px 6px;
        font-size: .72rem; display: flex; align-items: center; gap: 3px;
        transition: background .12s; white-space: nowrap;
    }
    .term-toggle-btn:hover { background: var(--chat-bg); color: var(--text-primary); }
    .term-toggle-btn.active { color: #10b981; border-color: #10b98140; }

    /* ── Workspace / panes ───────────────────── */
    .workspace { flex: 1; display: flex; overflow: hidden; }
    .workspace.hsplit { flex-direction: row; }
    .workspace.vsplit { flex-direction: column; }
    .pane { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; min-height: 0; }
    .pane.hidden { display: none; }
    #terminal-container { flex: 1; padding: 5px; background: #000; overflow: hidden; position: relative; }
    .xterm-viewport::-webkit-scrollbar { width: 8px; }
    .xterm-viewport::-webkit-scrollbar-thumb { background: #333; border-radius: 4px; }
    .terminal-header { background: #111; padding: 4px 10px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #222; }
    .workspace.hsplit .pane-divider { width: 4px; cursor: col-resize; background: var(--border-color); opacity: 0.5; position: relative; z-index: 20; }
    .workspace.vsplit .pane-divider { height: 4px; cursor: row-resize; background: var(--border-color); opacity: 0.5; position: relative; z-index: 20; }
    .pane-divider:hover { opacity: 1; background: var(--accent); }
    .pane-divider.dragging { opacity: 1; background: var(--accent); }
    .pane.focused { outline: 2px solid rgba(184,151,90,0.5); z-index: 10; }
    .pane-header { display: none; }
    .pane-header b { color: var(--accent); }

    /* ── Terminal panel ──────────────────────── */
    .terminal-panel {
        height: 280px; flex-shrink: 0; display: flex; flex-direction: column;
        border-top: 1px solid var(--border-color); background: #0d1117;
        color: #c9d1d9; font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
        z-index: 50; position: relative;
    }
    .terminal-panel.collapsed { height: 36px; overflow: hidden; }
    .terminal-panel.collapsed .terminal-header { cursor: pointer; }
    .terminal-panel.collapsed .term-resizer { display: none; }

    .term-resizer {
        height: 4px; background: transparent; cursor: ns-resize;
        position: absolute; top: 0; left: 0; right: 0; z-index: 100;
    }
    .term-resizer:hover, .term-resizer.dragging { background: var(--accent); opacity: 0.5; }

    .terminal-header {
        display: flex; align-items: center; gap: .5rem;
        padding: 6px 10px; background: #161b22;
        border-bottom: 1px solid #30363d; font-size: .72rem; flex-shrink: 0;
        user-select: none;
    }
    .terminal-title { display: flex; align-items: center; gap: .5rem; flex: 1; color: #8b949e; }
    .terminal-title b { color: #79c0ff; font-weight: 600; }
    #terminal-container {
        flex: 1; overflow: hidden; background: #000; padding: 4px;
        text-rendering: geometricPrecision;
        font-feature-settings: 'kern' 0, 'liga' 0;
    }
    /* Force xterm DOM-renderer to zero any inherited letter/word spacing */
    .xterm-rows { line-height: normal !important; letter-spacing: 0 !important; word-spacing: 0 !important; }
    .xterm-rows span { letter-spacing: 0 !important; word-spacing: 0 !important; }
    .term-input-row { display: flex; align-items: center; padding: 4px 10px; border-top: 1px solid #30363d; gap: 6px; flex-shrink: 0; }
    .term-prompt { color: #7ee787; font-size: .8rem; white-space: nowrap; }
    .term-cwd-label { color: #79c0ff; font-size: .78rem; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    #term-input { flex: 1; background: transparent; border: none; color: #c9d1d9; font-family: 'Consolas','Fira Code',monospace; font-size: .8rem; outline: none; caret-color: #7ee787; }

    /* ── Quick chips ─────────────────────────── */
    /* ── Chips wrap + toggle ─────────────────── */
    .chips-wrap { flex-shrink: 0; }
    .chips-toggle-row {
        display: flex; align-items: center; gap: .3rem;
        padding: .3rem 1rem .05rem;
        cursor: pointer; user-select: none;
        color: var(--text-secondary); font-size: .68rem; font-weight: 500; letter-spacing: .03em;
        transition: color .15s;
    }
    .chips-toggle-row:hover { color: var(--accent); }
    .chips-toggle-row .material-icons-round { font-size: 13px; transition: transform .2s; }
    .chips-wrap.collapsed .chips-toggle-row .material-icons-round.chevron { transform: rotate(180deg); }
    .chips-wrap.collapsed .chips-bar { display: none !important; }
    @media (min-width: 600px) { .chips-toggle-row { padding: .3rem 1.5rem .05rem; } }
    .chips-bar { padding: .25rem 1rem .3rem; display: flex; gap: .4rem; flex-wrap: wrap; flex-shrink: 0; justify-content: center; }
    @media (min-width: 600px) { .chips-bar { padding: .25rem 1.5rem .3rem; } }
    .chip {
        display: inline-flex; align-items: center; gap: .28rem;
        background: var(--chip-bg); color: var(--chip-color);
        border: 1px solid var(--chip-border); border-radius: 14px;
        padding: .3rem .85rem; font-size: .73rem; font-weight: 500; cursor: pointer;
        transition: filter .15s, transform .1s; white-space: nowrap; user-select: none;
    }
    .chip:hover { transform: translateY(-1px); filter: brightness(.93); }
    body.dark .chip:hover, body.theme-nord .chip:hover,
    body.theme-synthwave .chip:hover, body.theme-solarized .chip:hover { filter: brightness(1.15); }

    /* ── Theme swatches ─────────────────────── */
    .theme-swatches { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .75rem; }
    .theme-swatch {
        display: flex; flex-direction: column; align-items: center; gap: .4rem;
        background: none; border: 2px solid var(--border-color); border-radius: 10px;
        padding: .55rem .65rem; cursor: pointer; transition: border-color .2s, transform .15s;
        flex: 1; min-width: 64px; font-family: inherit;
    }
    .theme-swatch:hover { border-color: var(--accent); transform: translateY(-1px); }
    .theme-swatch.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
    .swatch-preview {
        width: 40px; height: 26px; border-radius: 5px;
        border: 1px solid rgba(128,128,128,0.2);
    }
    .swatch-dark     { background: linear-gradient(135deg, #0d0d0d 50%, #b8975a 50%); }
    .swatch-light    { background: linear-gradient(135deg, #f5f4f0 50%, #b8975a 50%); }
    .swatch-nord     { background: linear-gradient(135deg, #2e3440 50%, #88c0d0 50%); }
    .swatch-synthwave{ background: linear-gradient(135deg, #1a1030 50%, #ff79c6 50%); }
    .swatch-solarized{ background: linear-gradient(135deg, #002b36 50%, #2aa198 50%); }
    .swatch-label { font-size: .7rem; font-weight: 600; color: var(--text-primary); white-space: nowrap; }

    /* ── New Session button (header) ────────── */
    .new-session-btn {
        display: flex; align-items: center; gap: 5px;
        padding: 5px 12px 5px 8px;
        background: var(--accent); color: #fff;
        border: none; border-radius: 7px; cursor: pointer;
        font-size: .78rem; font-weight: 600; font-family: inherit;
        transition: background .2s, transform .1s; flex-shrink: 0;
        white-space: nowrap;
    }
    .new-session-btn:hover { background: var(--accent-hover); }
    .new-session-btn:active { transform: scale(.97); }
    .new-session-btn .material-icons-round { font-size: 16px; }
    @media (max-width: 600px) { .new-session-btn-label { display: none; } }

    /* ── New Session creation overlay ────────── */
    .new-session-overlay {
        position: absolute; inset: 0; z-index: 80;
        background: rgba(0,0,0,.55); backdrop-filter: blur(4px);
        display: flex; align-items: center; justify-content: center;
        padding: 1rem;
    }
    .new-session-overlay.hidden { display: none; }
    .ns-card {
        background: var(--modal-bg); border: 1px solid var(--border-color);
        border-radius: 14px; padding: 1.75rem 2rem; max-width: 480px; width: 100%;
        box-shadow: 0 20px 60px rgba(0,0,0,.5);
    }
    .ns-card h3 { font-size: 1.1rem; font-weight: 700; margin: 0 0 .35rem; color: var(--text-primary); }
    .ns-card .ns-sub { font-size: .82rem; color: var(--text-secondary); margin: 0 0 1.2rem; }
    .ns-field { margin-bottom: .9rem; }
    .ns-field label { display: block; font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-secondary); margin-bottom: .35rem; }
    .ns-search { width: 100%; padding: .5rem .75rem; background: var(--input-bg); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); font-size: .85rem; outline: none; transition: border-color .2s; box-sizing: border-box; }
    .ns-search:focus { border-color: var(--accent); }
    .ns-repo-list { max-height: 200px; overflow-y: auto; border: 1px solid var(--border-color); border-radius: 8px; margin-top: .3rem; }
    .ns-repo-item { padding: .5rem .75rem; cursor: pointer; font-size: .82rem; color: var(--text-primary); transition: background .12s; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; gap: .5rem; }
    .ns-repo-item:last-child { border-bottom: none; }
    .ns-repo-item:hover { background: var(--sidebar-bg); }
    .ns-repo-item.selected { background: rgba(184,151,90,.15); color: var(--accent); font-weight: 600; }
    .ns-repo-empty { padding: .75rem; text-align: center; color: var(--text-secondary); font-size: .8rem; }
    .ns-branch-row { display: flex; align-items: center; gap: .5rem; }
    .ns-branch-select { flex: 1; min-width: 0; padding: .45rem .65rem; background: var(--input-bg); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); font-size: .82rem; outline: none; }
    @media (max-width: 520px) {
        .ns-branch-row { flex-wrap: wrap; }
        .ns-branch-select { flex: none; width: 100%; }
        .ns-branch-row .ns-btn { flex: none; font-size: .78rem; padding: .42rem .7rem; }
    }
    .ns-new-branch-wrap { margin-top: .5rem; display: flex; gap: .5rem; }
    .ns-new-branch-wrap input { flex: 1; padding: .45rem .65rem; background: var(--input-bg); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); font-size: .82rem; outline: none; }
    .ns-new-branch-wrap input:focus { border-color: var(--accent); }
    .ns-actions { display: flex; gap: .6rem; justify-content: flex-end; margin-top: 1.25rem; }
    .ns-btn { padding: .5rem 1.2rem; border-radius: 7px; font-size: .82rem; font-weight: 600; font-family: inherit; cursor: pointer; border: none; transition: background .2s; }
    .ns-btn-secondary { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); }
    .ns-btn-secondary:hover { border-color: var(--text-secondary); color: var(--text-primary); }
    .ns-btn-primary { background: var(--accent); color: #fff; }
    .ns-btn-primary:hover { background: var(--accent-hover); }
    .ns-btn-primary:disabled { opacity: .4; cursor: not-allowed; }

    /* ── Session tab rename input ──────────── */
    .tab-rename-input {
        background: var(--input-bg); border: 1px solid var(--accent);
        border-radius: 4px; color: var(--text-primary);
        font-size: .75rem; font-weight: 500; font-family: inherit;
        padding: 1px 5px; width: 140px; outline: none;
    }
    .tab-pencil-btn { background: none; border: none; cursor: pointer; color: var(--text-secondary); padding: 0; width: 16px; height: 16px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; opacity: 0; transition: opacity .15s; font-size: 11px; line-height: 1; overflow: hidden; }
    .session-tab:hover .tab-pencil-btn { opacity: 1; }
    .session-tab.active .tab-pencil-btn { opacity: .6; }

    /* ── Pinned sessions sidebar section ────── */
    .sidebar-pinned-section { border-bottom: 1px solid var(--border-color); flex-shrink: 0; }
    .sidebar-section-hd {
        display: flex; align-items: center; justify-content: space-between;
        padding: .45rem .85rem .2rem; cursor: pointer; user-select: none;
    }
    .sidebar-section-hd h3 { font-size: .65rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-secondary); display: flex; align-items: center; gap: .35rem; }
    .sidebar-section-hd .ss-toggle { color: var(--text-secondary); font-size: 14px !important; transition: transform .2s; }
    .sidebar-section-hd:hover h3 { color: var(--text-primary); }
    .sidebar-section-body { overflow: hidden; max-height: 400px; transition: max-height .25s ease; overflow-y: auto; }
    .sidebar-section-body.collapsed { max-height: 0; overflow: hidden; }
    .pinned-sess-item {
        display: flex; align-items: center; gap: .4rem;
        padding: .38rem .85rem; cursor: pointer; font-size: .78rem;
        color: var(--text-primary); transition: background .12s; border-radius: 6px;
        margin: 0 .35rem;
    }
    .pinned-sess-item:hover { background: var(--chat-bg); }
    .pinned-sess-item.active { background: var(--chat-bg); color: var(--accent); font-weight: 600; }
    .pinned-sess-repo { font-size: .68rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 80px; }
    .pinned-sess-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .pinned-sess-empty { padding: .45rem .85rem; font-size: .76rem; color: var(--text-secondary); font-style: italic; }
    .pinned-edit-btn {
        background: none; border: none; cursor: pointer; color: var(--text-secondary);
        padding: 1px 3px; border-radius: 3px; flex-shrink: 0; opacity: 0;
        transition: opacity .15s, color .12s, background .12s; line-height: 1;
        display: flex; align-items: center;
    }
    .pinned-edit-btn:hover { color: var(--text-primary); background: var(--border-color); }
    .pinned-sess-item:hover .pinned-edit-btn { opacity: 1; }

    /* ── Sessions panel redesign ─────────────── */
    .sess-filter-row { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: 1rem; }
    .sess-filter-btn {
        padding: .32rem .75rem; border-radius: 20px; font-size: .75rem; font-weight: 600;
        border: 1px solid var(--border-color); background: transparent;
        color: var(--text-secondary); cursor: pointer; font-family: inherit;
        transition: all .15s;
    }
    .sess-filter-btn:hover { border-color: var(--accent); color: var(--accent); }
    .sess-filter-btn.active { background: rgba(184,151,90,.15); border-color: var(--accent); color: var(--accent); }
    .sess-search-wrap { position: relative; margin-bottom: .75rem; }
    .sess-search-wrap .material-icons-round { position: absolute; left: .65rem; top: 50%; transform: translateY(-50%); font-size: 15px; color: var(--text-secondary); pointer-events: none; }
    #sess-search { width: 100%; padding: .45rem .75rem .45rem 2.1rem; background: var(--input-bg); border: 1px solid var(--border-color); border-radius: 8px; color: var(--text-primary); font-size: .82rem; outline: none; transition: border-color .2s; box-sizing: border-box; }
    #sess-search:focus { border-color: var(--accent); }
    .sess-card {
        background: var(--sidebar-bg); border: 1px solid var(--border-color);
        border-radius: 10px; padding: .85rem 1rem; margin-bottom: .55rem;
        transition: border-color .15s, background .15s; cursor: pointer;
    }
    .sess-card:hover { border-color: rgba(184,151,90,.4); background: var(--chat-bg); }
    .sess-card.active { border-color: var(--accent); }
    .sess-card-title { font-size: .85rem; font-weight: 600; color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: .3rem; display: flex; align-items: center; gap: .35rem; }
    .sess-card-title .pin-icon { color: var(--accent); font-size: 12px !important; flex-shrink: 0; }
    .sess-card-repo { font-size: .73rem; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    .sess-card-meta { display: flex; gap: .65rem; flex-wrap: wrap; margin-top: .45rem; font-size: .71rem; color: var(--text-secondary); }
    .sess-card-meta span { display: flex; align-items: center; gap: .2rem; }
    .sess-card-meta .material-icons-round { font-size: 11px !important; }
    .sess-card-actions { display: flex; align-items: center; gap: .3rem; flex-wrap: wrap; margin-top: .55rem; padding-top: .45rem; border-top: 1px solid var(--border-color); }
    .sess-action-btn {
        display: flex; align-items: center; gap: .25rem;
        padding: .25rem .6rem; border-radius: 5px; font-size: .71rem; font-weight: 500;
        border: 1px solid var(--border-color); background: transparent;
        color: var(--text-secondary); cursor: pointer; font-family: inherit;
        transition: all .15s; white-space: nowrap;
    }
    .sess-action-btn:hover { border-color: var(--text-secondary); color: var(--text-primary); }
    .sess-action-btn.danger:hover { border-color: #f85149; color: #f85149; }
    .sess-action-btn.accent:hover { border-color: var(--accent); color: var(--accent); }
    .sess-action-btn .material-icons-round { font-size: 12px !important; }
    .sess-resume-action { margin-left: auto; background: var(--accent); color: #fff; border-color: var(--accent); }
    .sess-resume-action:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: #fff; }
    @media (max-width: 600px) {
        .sess-resume-action { margin-left: 0; width: 100%; justify-content: center; margin-top: .15rem; }
    }
    .sess-pager { display: flex; align-items: center; gap: .5rem; justify-content: center; padding: .75rem 0 0; }
    .sess-pager-btn { padding: .3rem .8rem; border-radius: 6px; border: 1px solid var(--border-color); background: transparent; color: var(--text-secondary); cursor: pointer; font-size: .78rem; font-family: inherit; transition: all .15s; }
    .sess-pager-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
    .sess-pager-btn:disabled { opacity: .4; cursor: not-allowed; }
    .sess-pager-info { font-size: .75rem; color: var(--text-secondary); }
    .sess-upgrade-card { background: var(--sidebar-bg); border: 1px solid var(--border-color); border-radius: 10px; padding: 1.5rem; text-align: center; }
    .sess-upgrade-card h3 { margin: 0 0 .5rem; font-size: 1rem; }
    .sess-upgrade-card p { color: var(--text-secondary); font-size: .82rem; margin: 0 0 1rem; }
    .sess-upgrade-card button { background: var(--accent); color: #fff; border: none; border-radius: 7px; padding: .5rem 1.2rem; font-size: .82rem; font-weight: 600; cursor: pointer; font-family: inherit; }
    .sess-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .75rem; padding: 3rem 1rem; color: var(--text-secondary); font-size: .85rem; text-align: center; }
    .sess-empty .material-icons-round { font-size: 36px; opacity: .35; }

    /* ── Repos section collapse ──────────────── */
    .repos-collapse-btn {
        display: flex; align-items: center; gap: .25rem;
        font-size: .68rem; color: var(--text-secondary); background: none; border: none;
        cursor: pointer; font-family: inherit; padding: .1rem .2rem; transition: color .15s;
    }
    .repos-collapse-btn:hover { color: var(--accent); }
    .repos-all-section { overflow: hidden; max-height: 2000px; transition: max-height .3s ease; }
    .repos-all-section.collapsed { max-height: 0; }

    /* ── Input ───────────────────────────────── */
    .input-area { padding: .6rem 1rem; background: var(--chat-bg); border-top: 1px solid var(--border-color); flex-shrink: 0; display: flex; justify-content: center; }
    @media (min-width: 600px) { .input-area { padding: .65rem 1.5rem; } }
    /* Only add safe-area padding when running as installed PWA */
    @media (display-mode: standalone) {
        .input-area { padding-bottom: calc(.6rem + env(safe-area-inset-bottom, 0px)); }
        @media (min-width: 600px) { .input-area { padding-bottom: calc(.65rem + env(safe-area-inset-bottom, 0px)); } }
    }
    .input-box {
        display: flex; width: 100%;
        background: var(--input-bg); border: 1px solid var(--border-color);
        border-radius: 14px; padding: .35rem .9rem;
        box-shadow: 0 2px 8px rgba(0,0,0,.05); align-items: center;
        transition: border-color .2s;
    }
    .input-box:focus-within { border-color: var(--accent); }
    textarea { flex: 1; background: transparent; border: none; color: var(--text-primary); padding: .55rem 0; font-size: .92rem; resize: none; outline: none; overflow-y: auto; min-height: 44px; max-height: 12rem; line-height: 1.5; }
    @media (min-width: 600px) { textarea { min-height: 5rem; } }
    /* .send-btn removed — replaced by .input-meta-send */
    .retry-btn { display:inline-flex;align-items:center;gap:4px;margin-top:.5rem;padding:4px 11px;background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);border-radius:6px;font-size:.73rem;cursor:pointer;transition:all .15s; }
    .retry-btn:hover { border-color:var(--accent);color:var(--accent); }
    /* ── Thinking drawer ── */
    #think-drawer { position:fixed;bottom:0;left:0;right:0;height:50vh;background:var(--sidebar-bg);border-top:1px solid var(--border-color);display:flex;flex-direction:column;z-index:200;transform:translateY(100%);transition:transform .3s cubic-bezier(0.4,0,0.2,1);box-shadow:0 -8px 32px rgba(0,0,0,.45); }
    #think-drawer.open { transform:translateY(0); }
    .think-drawer-header { display:flex;align-items:center;justify-content:space-between;padding:.55rem 1rem;border-bottom:1px solid var(--border-color);flex-shrink:0; }
    .think-drawer-title { font-size:.75rem;font-weight:600;color:var(--text-secondary);letter-spacing:.07em;text-transform:uppercase;display:flex;align-items:center;gap:.45rem; }
    .think-drawer-close { background:none;border:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;padding:2px;border-radius:4px;transition:color .15s; }
    .think-drawer-close:hover { color:var(--text-primary); }
    .think-drawer-body { flex:1;overflow-y:auto;padding:1rem;font-size:.8rem;color:var(--text-secondary);font-family:'Consolas','Fira Code',monospace;white-space:pre-wrap;line-height:1.65; }

    /* ── Diff drawer ── */
    #diff-drawer { position:fixed;bottom:0;left:0;right:0;height:50vh;background:var(--sidebar-bg);border-top:1px solid var(--border-color);display:flex;flex-direction:column;z-index:201;transform:translateY(100%);transition:transform .3s cubic-bezier(0.4,0,0.2,1);box-shadow:0 -8px 32px rgba(0,0,0,.5); }
    #diff-drawer.open { transform:translateY(0); }
    .diff-handle-bar { width:36px;height:4px;border-radius:99px;background:var(--border-color);margin:8px auto 0;cursor:grab;flex-shrink:0;transition:background .15s; }
    .diff-handle-bar:hover { background:var(--text-muted); }
    .diff-drawer-header { display:flex;align-items:center;justify-content:space-between;padding:.45rem 1rem;border-bottom:1px solid var(--border-color);flex-shrink:0; }
    .diff-drawer-title { font-size:.75rem;font-weight:600;color:var(--text-secondary);letter-spacing:.07em;text-transform:uppercase;display:flex;align-items:center;gap:.45rem; }
    .diff-drawer-close { background:none;border:none;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;padding:2px;border-radius:4px;transition:color .15s; }
    .diff-drawer-close:hover { color:var(--text-primary); }
    .diff-drawer-body { flex:1;overflow-y:auto;overflow-x:auto;padding:.6rem 1rem 1rem; }
    .diff-file-hdr { color:var(--text-secondary);font-size:.72rem;font-weight:600;padding:.25rem .5rem;background:var(--chat-bg);border-radius:5px;margin:.5rem 0 .15rem;display:flex;justify-content:space-between;align-items:center;gap:.5rem;word-break:break-all;font-family:'Consolas','Fira Code',monospace; }
    .diff-file-hdr span:last-child { flex-shrink:0;font-family:'Consolas','Fira Code',monospace; }
    .diff-pre { margin:0 0 .35rem;padding:0;font-size:.77rem;font-family:'Consolas','Fira Code',monospace;line-height:1.6;white-space:pre; }
    .dl-add { color:#4ade80;background:rgba(74,222,128,.09);display:block; }
    .dl-del { color:#f87171;background:rgba(248,113,113,.09);display:block; }
    .dl-hunk { color:#60a5fa;display:block;font-size:.72rem; }
    .dl-ctx { color:var(--text-muted);display:block; }
    /* Diff button inline in message */
    .diff-link { display:inline-flex;align-items:center;gap:.3rem;margin-top:.45rem;background:var(--chat-bg);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:6px;padding:.18rem .55rem;font-size:.74rem;cursor:pointer;font-family:'Consolas','Fira Code',monospace;font-weight:600;transition:border-color .2s,color .2s;vertical-align:middle; }
    .diff-link:hover { border-color:var(--accent);color:var(--text-primary); }
    .diff-link .da { color:#4ade80; }
    .diff-link .dd { color:#f87171; }
    .think-link { display:inline-flex;align-items:center;gap:4px;margin-top:.5rem;padding:3px 10px;background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);border-radius:6px;font-size:.73rem;cursor:pointer;transition:all .15s; }
    .think-link:hover { border-color:var(--accent);color:var(--accent); }
    .token-chip { display:inline-flex;align-items:center;gap:3px;font-size:11px;font-weight:600;color:#b8975a;background:rgba(184,151,90,0.12);border:1px solid rgba(184,151,90,0.3);border-radius:10px;padding:1px 7px;margin-left:6px;vertical-align:middle;white-space:nowrap;user-select:none; }
    /* ── Inline thinking subpanel ── */
    .thinking-row.think-toggle-row { cursor:pointer;user-select:none; }
    .thinking-row.think-toggle-row:hover .think-chevron { color:var(--accent); }
    .think-chevron { font-size:14px;color:var(--text-secondary);transition:transform .2s,color .15s;flex-shrink:0;margin-left:auto;display:none; }
    .think-chevron.visible { display:inline-block; }
    .think-chevron.open { transform:rotate(180deg); }
    .think-inline-panel { max-height:0;overflow:hidden;opacity:0;transition:max-height .3s cubic-bezier(0.4,0,0.2,1),opacity .2s;font-family:'Consolas','Fira Code',monospace;font-size:.75rem;color:var(--text-secondary);white-space:pre-wrap;line-height:1.6;padding:0 0 0 28px; }
    .think-inline-panel.open { max-height:220px;overflow-y:auto;opacity:1;margin-top:.4rem; }
    .think-model-tag { font-size:.72rem; font-weight:600; color:var(--accent); letter-spacing:.03em; flex-shrink:0; }
    /* ── Live status indicator ── */
    @keyframes statusPulse { 0%,100%{opacity:.35;} 50%{opacity:1;} }
    @keyframes doneFade { 0%,60%{opacity:1;} 100%{opacity:0;} }
    .forge-status { display:inline-flex; align-items:center; gap:.28rem; font-size:.71rem; color:var(--text-secondary); transition:opacity .5s; flex-shrink:1; min-width:0; overflow:hidden; }
    .forge-status-dot { width:5px; height:5px; border-radius:50%; flex-shrink:0; background:var(--text-secondary); }
    .forge-status-label { white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
    .forge-status--connecting .forge-status-dot { background:#666; animation:statusPulse 1.4s ease-in-out infinite; }
    .forge-status--waiting .forge-status-dot { background:#d29922; animation:statusPulse 1s ease-in-out infinite; }
    .forge-status--waiting .forge-status-label { color:#d29922; }
    .forge-status--tools .forge-status-dot { background:#4a9eff; animation:statusPulse .9s ease-in-out infinite; }
    .forge-status--tools .forge-status-label { color:#4a9eff; }
    .forge-status--writing .forge-status-dot { background:var(--accent); animation:statusPulse .55s ease-in-out infinite; }
    .forge-status--writing .forge-status-label { color:var(--accent); }
    .forge-status--done { pointer-events:none; animation: doneFade 4s ease-out forwards; }
    .forge-status--done .forge-status-dot { background:#4ade80 !important; animation:none !important; }
    .forge-status--done .forge-status-label { color:#4ade80 !important; }
    .forge-status--error .forge-status-dot { background:#ef4444 !important; animation:none !important; }
    .forge-status--error .forge-status-label { color:#ef4444 !important; }
    .forge-logo-idle { animation:none !important; }
    .forge-logo-idle path { fill:#4ade80; transition: fill .4s; }
    .forge-logo-error { animation:none !important; }
    .forge-logo-error path { fill:#ef4444; transition: fill .4s; }
    .think-ops-log { display:flex; flex-direction:column; gap:.08rem; padding:.15rem 0 .15rem 28px; max-height:140px; overflow-y:auto; }
    .think-op-entry { font-size:.74rem; color:var(--text-secondary); font-family:'Consolas','Fira Code',monospace; white-space:pre-wrap; word-break:break-word; line-height:1.5; }
    .think-op-entry::before { content:'↳ '; color:var(--accent); font-style:normal; }
    .think-response-sep { border-top:1px solid var(--border);margin:.55rem 0 .35rem; }
    .think-response-body { } /* response text sits below thinking section in same bubble */
    /* ── Tool call cards (shown while AI works, like Claude Code) ── */
    .tc-area { margin:.35rem 0 0; display:flex; flex-direction:column; gap:.22rem; }
    .tc-card { border:1px solid var(--border); border-radius:6px; overflow:hidden; font-size:.77rem; }
    .tc-header { display:flex; align-items:center; gap:.45rem; padding:.3rem .5rem; cursor:pointer; user-select:none; background:var(--bg-surface); }
    .tc-header:hover { background:rgba(255,255,255,.05); }
    .tc-chevron { font-size:13px; color:var(--text-secondary); transition:transform .15s; flex-shrink:0; line-height:1; }
    .tc-chevron.open { transform:rotate(90deg); }
    .tc-name { font-weight:600; color:var(--text-primary); flex-shrink:0; min-width:3.8rem; }
    .tc-summary { color:var(--text-secondary); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; font-family:'Consolas','Fira Code',monospace; font-size:.71rem; flex:1; }
    .tc-status { margin-left:auto; font-size:.71rem; color:var(--text-secondary); flex-shrink:0; padding-left:.4rem; }
    .tc-body { display:none; border-top:1px solid var(--border); padding:.45rem .55rem; max-height:220px; overflow-y:auto; background:rgba(0,0,0,.18); }
    .tc-body.open { display:block; }
    .tc-content { font-family:'Consolas','Fira Code',monospace; font-size:.7rem; color:var(--text-secondary); white-space:pre-wrap; word-break:break-word; margin:0; line-height:1.55; }
    .tc-show-more { font-size:.73rem; color:var(--text-secondary); cursor:pointer; padding:.22rem .5rem; border:1px solid var(--border); border-radius:5px; background:var(--bg-surface); width:100%; text-align:center; transition:color .15s,border-color .15s; margin-top:.1rem; }
    .tc-show-more:hover { color:var(--accent); border-color:var(--accent); }
    .tc-question { font-size:.8rem; color:var(--accent); font-weight:500; padding:.3rem 0 .4rem; border-bottom:1px solid var(--border); margin-bottom:.4rem; }
    .tc-confirm-prompt { margin-top:.4rem; border-top:1px solid var(--border); padding-top:.4rem; }
    .tc-confirm-cmd { font-family:'Consolas','Fira Code',monospace; font-size:.7rem; color:var(--text-secondary); white-space:pre-wrap; word-break:break-word; margin-bottom:.3rem; background:rgba(0,0,0,.25); padding:.3rem .4rem; border-radius:4px; }
    .tc-confirm-reason { font-size:.74rem; color:#d29922; margin-bottom:.4rem; }
    .tc-confirm-btns { display:flex; gap:.4rem; }
    .tc-btn-confirm { flex:1; padding:.22rem .5rem; border-radius:4px; border:1px solid #4caf50; background:rgba(76,175,80,.12); color:#4caf50; font-size:.73rem; cursor:pointer; transition:background .15s; }
    .tc-btn-confirm:hover { background:rgba(76,175,80,.25); }
    .tc-btn-deny { flex:1; padding:.22rem .5rem; border-radius:4px; border:1px solid rgba(255,100,100,.5); background:rgba(255,100,100,.08); color:rgba(255,120,120,.9); font-size:.73rem; cursor:pointer; transition:background .15s; }
    .tc-btn-deny:hover { background:rgba(255,100,100,.18); }
    .plan-badge { display:inline-flex; align-items:center; gap:.3rem; font-size:.72rem; color:#4a9eff; background:rgba(74,158,255,.1); border:1px solid rgba(74,158,255,.25); border-radius:4px; padding:.18rem .45rem; margin:.15rem 0; }
    .tc-diff { white-space:pre; overflow-x:auto; }
    .diff-line { display:block; font-family:'Consolas','Fira Code',monospace; font-size:.7rem; line-height:1.55; white-space:pre; }
    .diff-add  { color:#4caf50; background:rgba(76,175,80,.10); }
    .diff-del  { color:#f44336; background:rgba(244,67,54,.10); }
    .diff-hunk { color:#4a9eff; font-weight:600; }
    .diff-meta { color:var(--text-secondary); opacity:.65; }
    .diff-ctx  { color:var(--text-secondary); }
    .think-task-list { display:flex; flex-direction:column; gap:.12rem; padding:.2rem 0 .2rem 28px; }
    .think-task-list:empty { display:none; }
    .think-task-row { display:flex; align-items:center; gap:.4rem; font-size:.73rem; font-family:'Consolas','Fira Code',monospace; color:var(--text-secondary); line-height:1.5; }
    .think-task-icon { flex-shrink:0; font-size:.65rem; transition:color .2s; }
    .think-task--pending   .think-task-icon { color:var(--text-secondary); opacity:.5; }
    .think-task--in_progress .think-task-icon { color:var(--accent); }
    .think-task--completed .think-task-icon { color:#4caf50; }
    .think-task--completed .think-task-title { text-decoration:line-through; opacity:.55; }
    .think-task-title { flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
    #forge-search-bar { position:fixed; top:0; left:50%; transform:translateX(-50%); z-index:900; display:flex; align-items:center; gap:.5rem; background:var(--bg-card); border:1px solid var(--border); border-top:none; border-radius:0 0 8px 8px; padding:.35rem .6rem; box-shadow:0 4px 16px rgba(0,0,0,.4); }
    #forge-search-bar.hidden { display:none; }
    #forge-search-input { background:var(--bg-surface); border:1px solid var(--border); border-radius:4px; color:var(--text-primary); font-size:.82rem; padding:.22rem .45rem; width:220px; outline:none; }
    #forge-search-input:focus { border-color:var(--accent); }
    #forge-search-count { font-size:.74rem; color:var(--text-secondary); white-space:nowrap; min-width:4rem; }
    .forge-search-match { background:rgba(184,151,90,.35); border-radius:2px; }
    .forge-search-match.current { background:rgba(184,151,90,.75); outline:2px solid var(--accent); }
    /* ── Mode toggle ── */
    .mode-toggle { display:flex;flex-shrink:0; }
    .mode-btn { background:transparent;border:1px solid var(--border-color);border-radius:6px;color:var(--text-secondary);padding:.22rem .55rem;font-size:.7rem;cursor:pointer;display:flex;align-items:center;gap:3px;transition:all .15s;white-space:nowrap; }
    .mode-btn:hover { border-color:var(--accent);color:var(--accent); }
    /* ── Image attach ── */
    .img-attach-btn { display:flex;align-items:center;justify-content:center;width:28px;height:28px;flex-shrink:0;cursor:pointer;color:var(--text-secondary);border-radius:6px;transition:color .15s; }
    .img-attach-btn:hover { color:var(--accent); }
    .img-preview-bar { display:none;align-items:center;gap:8px;padding:5px 10px;background:var(--sidebar-bg);border:1px solid var(--border-color);border-radius:8px;margin-bottom:5px;font-size:.75rem;color:var(--text-secondary); }
    .img-preview-bar img { width:36px;height:36px;object-fit:cover;border-radius:4px;flex-shrink:0; }
    /* ── Context indicator ── */
    .ctx-indicator { display:flex;align-items:center;gap:5px;flex-shrink:0; }
    .ctx-bar-track { width:48px;height:4px;background:var(--border-color);border-radius:2px;overflow:hidden; }
    .ctx-bar-fill { height:100%;background:var(--accent);border-radius:2px;transition:width .3s,background .3s; }

    /* ── Settings Modal ──────────────────────── */
    .modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 200; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); padding: 1rem; }
    .modal-backdrop.hidden { display: none; }
    .modal { background: var(--modal-bg); border-radius: 16px; border: 1px solid var(--border-color); box-shadow: 0 20px 60px rgba(0,0,0,.3); width: 500px; max-width: 100%; max-height: 88vh; overflow-y: auto; padding: 1.75rem; }
    .modal h2 { font-size: 1.1rem; margin-bottom: .2rem; }
    .modal .subtitle { color: var(--text-secondary); font-size: .82rem; margin-bottom: 1.25rem; }
    .modal-close { float: right; background: none; border: none; font-size: 1.3rem; cursor: pointer; color: var(--text-secondary); line-height: 1; }
    .provider-section { border: 1px solid var(--border-color); border-radius: 10px; padding: 1rem; margin-bottom: .85rem; }
    .provider-section h3 { font-size: .86rem; margin-bottom: .2rem; display: flex; align-items: center; gap: .45rem; }
    .provider-section p { font-size: .76rem; color: var(--text-secondary); margin-bottom: .75rem; }
    .tag { font-size: .67rem; background: #10b98120; color: #10b981; border-radius: 4px; padding: .08em .45em; font-weight: 600; }
    .tag.paid { background: #f59e0b20; color: #f59e0b; }
    .field-group { display: flex; flex-direction: column; gap: .4rem; }
    .field-group label { font-size: .76rem; font-weight: 500; color: var(--text-secondary); }
    .field-group input, .field-group select { background: var(--input-bg); border: 1px solid var(--border-color); color: var(--text-primary); padding: .5rem .65rem; border-radius: 8px; font-size: .82rem; width: 100%; outline: none; }
    .field-group input:focus { border-color: var(--accent); }
    .field-with-btn { display: flex; gap: .5rem; align-items: center; }
    .field-with-btn input { flex: 1; }
    .sync-btn {
        background: var(--sidebar-bg); border: 1px solid var(--border-color);
        color: var(--text-secondary); border-radius: 8px; padding: .5rem;
        cursor: pointer; transition: all .2s; height: 34px; width: 34px;
        display: flex; align-items: center; justify-content: center; flex-shrink: 0;
    }
    .sync-btn:hover { border-color: var(--accent); color: var(--accent); }
    .sync-btn.loading { animation: spin 1s linear infinite; opacity: 0.7; pointer-events: none; }
    @keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
    .save-btn { background: var(--accent); color: #fff; border: none; padding: .65rem 1.75rem; border-radius: 9px; font-weight: 600; cursor: pointer; float: right; margin-top: .85rem; transition: background .2s; }
    .save-btn:hover { background: var(--accent-hover); }
    .notice { background: #f59e0b18; border: 1px solid #f59e0b40; border-radius: 8px; padding: .65rem .9rem; font-size: .78rem; color: #f59e0b; margin-bottom: .85rem; }

    /* ── Font size scale (app-shell only, not hero/landing) ────── */
    .font-size-slider-wrap { display:flex; flex-direction:column; gap:.5rem; }
    .font-size-labels { display:flex; justify-content:space-between; font-size:.72rem; color:var(--text-secondary); user-select:none; }
    .app-shell.fs-small  { zoom: 0.85; width: calc(100vw / 0.85); height: calc(100dvh / 0.85); }
    .app-shell.fs-medium { zoom: 1; }
    .app-shell.fs-large  { zoom: 1.2;  width: calc(100vw / 1.2);  height: calc(100dvh / 1.2); }

    /* ── Billing / Usage Panels ───────────────────────────────── */
    .bm-section-title { font-size:10px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--text-secondary); margin:1.25rem 0 .6rem; }
    .bm-plan-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:10px; padding:14px 18px; display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap; margin-bottom:1.25rem; }
    .bm-plan-name { font-size:15px; font-weight:700; display:flex; align-items:center; gap:6px; }
    .bm-plan-sub { font-size:11px; color:var(--text-secondary); margin-top:3px; }
    .bm-credits-num { font-size:24px; font-weight:700; color:var(--accent); line-height:1; }
    .bm-credits-lbl { font-size:10px; color:var(--text-secondary); text-align:right; }
    .bm-portal-btn { display:inline-flex; align-items:center; gap:5px; padding:5px 11px; border-radius:7px; background:transparent; border:1px solid var(--border-color); color:var(--text-secondary); font-size:11px; font-weight:600; cursor:pointer; transition:all .2s; }
    .bm-portal-btn:hover { border-color:var(--accent); color:var(--accent); }
    .bm-free-bar { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:8px; padding:10px 14px; margin-bottom:1rem; }
    .bm-free-bar-top { display:flex; justify-content:space-between; font-size:11px; margin-bottom:6px; color:var(--text-secondary); }
    .bm-free-bar-track { height:5px; background:var(--border-color); border-radius:3px; overflow:hidden; }
    .bm-free-bar-fill { height:100%; background:var(--accent); border-radius:3px; transition:width .4s; }
    .bm-tier-pill { display:inline-flex; align-items:center; gap:3px; padding:2px 7px; border-radius:10px; font-size:10px; font-weight:700; text-transform:uppercase; letter-spacing:.04em; }
    .bm-tp-free { background:rgba(255,255,255,.07); color:var(--text-secondary); border:1px solid var(--border-color); }
    .bm-tp-starter { background:rgba(88,166,255,.1); color:#58a6ff; border:1px solid rgba(88,166,255,.25); }
    .bm-tp-pro { background:rgba(184,151,90,.12); color:var(--accent); border:1px solid rgba(184,151,90,.3); }
    .bm-tp-power { background:rgba(63,185,80,.1); color:#3fb950; border:1px solid rgba(63,185,80,.25); }
    .bm-tiers-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-bottom:1.5rem; }
    @media (max-width:600px) { .bm-tiers-grid { grid-template-columns:repeat(2,1fr); } }
    .bm-tier-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:10px; padding:12px; position:relative; }
    .bm-tier-card.current { border-color:var(--accent); }
    .bm-tier-card.current::after { content:'NOW'; position:absolute; top:-1px; right:8px; background:var(--accent); color:#0d0d0d; font-size:8px; font-weight:700; padding:2px 6px; border-radius:0 0 5px 5px; letter-spacing:.06em; }
    .bm-tier-card h4 { font-size:12px; font-weight:700; margin-bottom:2px; }
    .bm-tier-card .bm-tc-specs { font-size:10px; color:var(--text-secondary); margin-bottom:7px; }
    .bm-tier-card ul { list-style:none; display:flex; flex-direction:column; gap:3px; }
    .bm-tier-card li { font-size:10px; color:var(--text-secondary); display:flex; align-items:flex-start; gap:4px; }
    .bm-tier-card li::before { content:'·'; color:var(--accent); flex-shrink:0; }
    .bm-tier-switch-btn { margin-top:8px; width:100%; padding:5px; background:var(--accent); color:#0d0d0d; border:none; border-radius:5px; font-size:10px; font-weight:700; cursor:pointer; transition:background .2s; display:none; }
    .bm-tier-card:not(.current) .bm-tier-switch-btn { display:block; }
    .bm-tier-switch-btn:hover { background:var(--accent-hover); }
    .bm-tier-switch-btn:disabled { opacity:.5; cursor:not-allowed; }
    .bm-packages-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-bottom:1.5rem; }
    @media (max-width:600px) { .bm-packages-grid { grid-template-columns:repeat(2,1fr); } }
    .bm-pkg-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:10px; padding:14px 10px; text-align:center; position:relative; transition:border-color .2s; }
    .bm-pkg-card:hover,.bm-pkg-card.popular { border-color:var(--accent); }
    .bm-pkg-badge { position:absolute; top:-1px; left:50%; transform:translateX(-50%); background:var(--accent); color:#0d0d0d; font-size:8px; font-weight:700; padding:2px 8px; border-radius:0 0 5px 5px; letter-spacing:.08em; white-space:nowrap; }
    .bm-pkg-credits { font-size:18px; font-weight:700; }
    .bm-pkg-label { font-size:10px; color:var(--text-secondary); margin-bottom:7px; }
    .bm-pkg-price { font-size:18px; font-weight:700; color:var(--accent); }
    .bm-pkg-bonus { font-size:10px; color:#3fb950; margin-top:2px; font-weight:600; }
    .bm-pkg-buy { margin-top:8px; width:100%; padding:6px; background:var(--accent); color:#0d0d0d; border:none; border-radius:5px; font-size:11px; font-weight:700; cursor:pointer; transition:background .2s; }
    .bm-pkg-buy:hover { background:var(--accent-hover); }
    .bm-pkg-buy:disabled { opacity:.5; cursor:not-allowed; }
    .bm-how-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:8px; }
    .bm-how-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:8px; padding:10px 12px; }
    .bm-how-icon { font-size:16px; margin-bottom:4px; }
    .bm-how-card h4 { font-size:11px; font-weight:700; margin-bottom:2px; }
    .bm-how-card p { font-size:10px; color:var(--text-secondary); line-height:1.5; }
    .bm-table-wrap { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:8px; overflow:auto; }
    .bm-table-wrap table { width:100%; border-collapse:collapse; }
    .bm-table-wrap th { font-size:9px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--text-secondary); padding:8px 12px; text-align:left; border-bottom:1px solid var(--border-color); white-space:nowrap; }
    .bm-table-wrap td { padding:8px 12px; border-bottom:1px solid rgba(255,255,255,.03); color:var(--text-primary); font-size:11px; vertical-align:middle; }
    .bm-table-wrap tr:last-child td { border-bottom:none; }
    .bm-table-wrap tr:hover td { background:rgba(255,255,255,.02); }
    .bm-pagination { display:none; align-items:center; justify-content:space-between; padding:7px 12px; border-top:1px solid var(--border-color); font-size:11px; color:var(--text-secondary); }
    .bm-pagination.show { display:flex; }
    .bm-page-btns { display:flex; gap:4px; }
    .bm-page-btn { padding:2px 9px; border-radius:4px; border:1px solid var(--border-color); background:transparent; color:var(--text-secondary); font-size:11px; cursor:pointer; transition:all .15s; }
    .bm-page-btn:hover:not(:disabled) { border-color:var(--accent); color:var(--accent); }
    .bm-page-btn:disabled { opacity:.35; cursor:not-allowed; }
    .bm-stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-bottom:1.25rem; }
    @media (max-width:600px) { .bm-stats-grid { grid-template-columns:repeat(2,1fr); } }
    .bm-stat-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:8px; padding:12px 14px; }
    .bm-stat-val { font-size:22px; font-weight:800; line-height:1; }
    .bm-stat-val.gold { color:var(--accent); }
    .bm-stat-val.green { color:#3fb950; }
    .bm-stat-lbl { font-size:9px; color:var(--text-secondary); margin-top:3px; text-transform:uppercase; letter-spacing:.07em; }
    .bm-chart-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:8px; padding:14px; margin-bottom:1.25rem; }
    .bm-chart-title { font-size:12px; font-weight:600; margin-bottom:2px; }
    .bm-chart-sub { font-size:10px; color:var(--text-secondary); margin-bottom:14px; }
    .bm-chart-area { display:flex; align-items:flex-end; gap:2px; height:80px; padding-bottom:18px; border-bottom:1px solid var(--border-color); overflow-x:auto; }
    .bm-cbar-wrap { display:flex; flex-direction:column; align-items:center; gap:2px; flex:1; min-width:16px; }
    .bm-cbar { width:100%; border-radius:2px 2px 0 0; background:var(--accent); opacity:.7; position:relative; cursor:pointer; }
    .bm-cbar:hover { opacity:1; }
    .bm-cbar-zero { width:100%; height:2px; background:var(--border-color); border-radius:1px; }
    .bm-cbar-date { font-size:7px; color:var(--text-secondary); text-align:center; white-space:nowrap; }
    .bm-breakdown-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:1.25rem; }
    @media (max-width:500px) { .bm-breakdown-grid { grid-template-columns:1fr; } }
    .bm-breakdown-card { background:var(--sidebar-bg); border:1px solid var(--border-color); border-radius:8px; padding:12px; }
    .bm-breakdown-card h4 { font-size:10px; font-weight:700; text-transform:uppercase; letter-spacing:.07em; margin-bottom:8px; }
    .bm-breakdown-row { display:flex; align-items:center; gap:7px; margin-bottom:6px; }
    .bm-breakdown-label { font-size:10px; flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
    .bm-breakdown-track { flex:2; height:4px; background:var(--border-color); border-radius:2px; overflow:hidden; }
    .bm-breakdown-fill { height:100%; background:var(--accent); border-radius:2px; }
    .bm-breakdown-count { font-size:10px; color:var(--text-secondary); min-width:24px; text-align:right; }
    .bm-spinner { width:14px; height:14px; border:2px solid var(--border-color); border-top-color:var(--accent); border-radius:50%; animation:spin .7s linear infinite; display:inline-block; vertical-align:middle; }

    /* ── User avatar dropdown ──────────────────── */
    .avatar-wrap { position: relative; flex-shrink: 0; }
    .avatar-btn {
        width: 30px; height: 30px; border-radius: 50%;
        border: 2px solid var(--border-color); cursor: pointer; padding: 0;
        background: none; overflow: hidden; display: flex; align-items: center; justify-content: center;
        transition: border-color .2s;
    }
    .avatar-btn:hover { border-color: var(--accent); }
    .avatar-btn img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .avatar-dropdown {
        position: absolute; top: calc(100% + 8px); right: 0;
        background: var(--modal-bg); border: 1px solid var(--border-color);
        border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.2);
        min-width: 170px; z-index: 100; padding: .5rem 0; animation: popIn .12s ease;
    }
    .avatar-dropdown.hidden { display: none; }
    .dd-user { padding: .5rem .85rem .4rem; border-bottom: 1px solid var(--border-color); margin-bottom: .3rem; }
    .dd-user strong { font-size: .82rem; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .dd-user span { font-size: .72rem; color: var(--text-secondary); }
    .dd-btn {
        display: flex; align-items: center; gap: .5rem;
        width: 100%; background: none; border: none; padding: .4rem .85rem;
        font-size: .82rem; color: var(--text-primary); cursor: pointer; text-align: left;
        transition: background .12s;
    }
    .dd-btn:hover { background: var(--sidebar-bg); }
    .dd-btn.danger { color: #ef4444; }
    .dd-divider { height: 1px; background: var(--border-color); margin: 3px 0; }
    .dd-version { display:flex; align-items:center; gap:.45rem; padding:.4rem .85rem .45rem; font-size:.72rem; color:var(--text-secondary); cursor:default; white-space:nowrap; }
    .dd-version .material-icons-round { font-size:13px; opacity:.55; }

    /* ── Chip add button + editor ──────────────── */
    .chip-add-btn {
        background: none; border: 1px dashed var(--border-color);
        color: var(--text-muted, var(--text-secondary)); cursor: pointer;
        padding: .18rem .6rem; border-radius: 8px; font-size: .95rem; line-height: 1;
        transition: border-color .15s, color .15s; flex-shrink: 0;
    }
    .chip-add-btn:hover { border-color: var(--accent); color: var(--accent); }
    .chip-editor-emoji-grid {
        display: grid; grid-template-columns: repeat(8, 1fr);
        gap: 4px; margin-bottom: 1rem;
    }
    .chip-editor-emoji-btn {
        background: none; border: 2px solid transparent; border-radius: 6px;
        font-size: 1.2rem; cursor: pointer; padding: 3px; line-height: 1;
        transition: border-color .1s;
    }
    .chip-editor-emoji-btn:hover { border-color: var(--border-color); }
    .chip-editor-emoji-btn.selected { border-color: var(--accent); background: rgba(184,151,90,.1); }

    /* ── Feedback modal textarea ───────────────── */
    #feedback-message {
        width: 100%; box-sizing: border-box; background: var(--sidebar-bg);
        border: 1px solid var(--border-color); border-radius: 8px;
        color: var(--text-primary); padding: .6rem .75rem;
        font-size: .85rem; resize: vertical; min-height: 100px;
        font-family: var(--font-sans);
    }
    #feedback-message:focus { outline: none; border-color: var(--accent); }
    #feedback-char-count { font-size: .72rem; color: var(--text-secondary); text-align: right; margin-top: 3px; }

    /* ── Info popup ────────────────────────────── */
    #info-popup {
        position: fixed; top: 58px; right: 12px;
        width: 420px; max-width: calc(100vw - 24px);
        background: var(--modal-bg); border: 1px solid var(--border-color);
        border-radius: 14px; box-shadow: 0 12px 40px rgba(0,0,0,.25);
        z-index: 150; padding: 1rem 1.1rem 1rem; animation: popIn .15s ease;
    }
    #info-popup.hidden { display: none; }
    .info-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: .85rem; }
    .info-header h3 { font-size: .9rem; font-weight: 600; }
    .info-close { background: none; border: none; font-size: 1.1rem; cursor: pointer; color: var(--text-secondary); line-height: 1; padding: 2px; }
    .stat-row { display: flex; flex-direction: column; gap: .2rem; margin-bottom: .7rem; }
    .stat-label { font-size: .7rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-secondary); display: flex; justify-content: space-between; }
    .stat-bar { height: 5px; background: var(--border-color); border-radius: 99px; overflow: hidden; }
    .stat-bar-fill { height: 100%; border-radius: 99px; background: var(--accent); transition: width .4s ease; }
    .stat-bar-fill.warn { background: #f59e0b; }
    .stat-bar-fill.danger { background: #ef4444; }
    .info-meta { margin-top: .75rem; border-top: 1px solid var(--border-color); padding-top: .75rem; display: flex; flex-direction: column; gap: .4rem; }
    .meta-item { display: flex; justify-content: space-between; align-items: center; font-size: .78rem; }
    .meta-key { color: var(--text-secondary); font-weight: 500; }
    .meta-val { color: var(--text-primary); font-weight: 600; text-align: right; word-break: break-all; max-width: 70%; font-size:.75rem; }

    @media (max-width: 600px) {
        #info-popup { left: 8px; right: 8px; width: auto; max-width: none; top: 56px; }
    }
    /* ── Response toast ── */
    #response-toast {
        position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%) translateY(20px);
        background: var(--bg-surface, #1e1e1e); color: var(--text-primary, #f2f0ec);
        border: 1px solid var(--accent, #b8975a); border-radius: 10px;
        padding: 10px 18px; font-size: .82rem; white-space: nowrap;
        display: flex; align-items: center; gap: 8px;
        opacity: 0; pointer-events: none;
        transition: opacity .25s ease, transform .25s ease;
        z-index: 9999; max-width: calc(100vw - 32px); box-shadow: 0 4px 24px rgba(0,0,0,.4);
    }
    #response-toast.visible { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }
    #response-toast .toast-icon { font-size: 15px; color: var(--accent, #b8975a); flex-shrink: 0; }



    /* ── Enhanced diff rendering ── */
    .diff-file-block { margin-bottom:.85rem; border:1px solid var(--border-color); border-radius:8px; overflow:hidden; }
    .diff-file-block-hdr { display:flex; align-items:center; justify-content:space-between; padding:.4rem .75rem; background:var(--chat-bg); font-size:.72rem; font-family:'JetBrains Mono','Consolas',monospace; font-weight:600; color:var(--text-secondary); gap:.5rem; }
    .diff-file-block-hdr span { word-break:break-all; flex:1; }
    .diff-stats-bar { display:flex; gap:.3rem; flex-shrink:0; }
    .diff-stat-add { color:#4ade80; font-weight:700; }
    .diff-stat-del { color:#f87171; font-weight:700; }
    .diff-lines-wrap { overflow-x:auto; }
    .diff-line { display:flex; min-width:0; font-family:'JetBrains Mono','Consolas',monospace; font-size:.75rem; line-height:1.6; white-space:pre; }
    .diff-line-num { min-width:2.6rem; padding:0 .4rem; text-align:right; color:var(--text-secondary); opacity:.5; user-select:none; border-right:1px solid var(--border-color); flex-shrink:0; font-size:.7rem; }
    .diff-line-content { padding:0 .6rem; flex:1; overflow:hidden; }
    .diff-line.add { background:rgba(74,222,128,.08); }
    .diff-line.add .diff-line-num { background:rgba(74,222,128,.12); color:#4ade80; opacity:.9; }
    .diff-line.add .diff-line-content { color:#4ade80; }
    .diff-line.del { background:rgba(248,113,113,.08); }
    .diff-line.del .diff-line-num { background:rgba(248,113,113,.12); color:#f87171; opacity:.9; }
    .diff-line.del .diff-line-content { color:#f87171; }
    .diff-line.meta { background:rgba(74,158,255,.05); }
    .diff-line.meta .diff-line-content { color:var(--accent-blue, #4a9eff); font-style:italic; }
    .diff-line.ctx .diff-line-content { color:var(--text-secondary); }
    .diff-copy-btn { background:none; border:1px solid var(--border-color); color:var(--text-secondary); border-radius:6px; padding:.2rem .5rem; font-size:.72rem; cursor:pointer; display:flex; align-items:center; gap:.3rem; transition:all .2s; font-family:inherit; }
    .diff-copy-btn:hover { border-color:var(--accent); color:var(--text-primary); }

    /* ── Budget guardrail ── */
    .budget-row { padding:.65rem 0; }
    .budget-label { display:flex; flex-direction:column; font-size:.84rem; font-weight:600; color:var(--text-primary); }
    .budget-warn-banner { background:rgba(251,191,36,.1); border:1px solid rgba(251,191,36,.4); border-radius:8px; padding:.65rem 1rem; margin:.5rem 0; font-size:.82rem; color:#fbbf24; display:flex; align-items:center; justify-content:space-between; gap:.75rem; }
    .budget-block-banner { background:rgba(248,113,113,.1); border:1px solid rgba(248,113,113,.4); border-radius:8px; padding:.65rem 1rem; margin:.5rem 0; font-size:.82rem; color:#f87171; display:flex; align-items:center; justify-content:space-between; gap:.75rem; }
    .budget-banner-actions { display:flex; gap:.4rem; flex-shrink:0; }
    .budget-dismiss { background:none; border:none; cursor:pointer; color:inherit; opacity:.6; padding:.1rem; font-size:1rem; line-height:1; }
    .budget-dismiss:hover { opacity:1; }

/* ── Sub-agent streaming ────────────────────────────────────────── */
.subagent-stream {
    margin: 8px 0;
    padding: 8px 12px;
    border-left: 2px solid var(--accent-color);
    background: rgba(184, 151, 90, 0.04);
    border-radius: 0 4px 4px 0;
    font-size: 12px;
}
.subagent-header {
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    color: var(--accent-color);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.subagent-header::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--accent-color);
    animation: subagent-pulse 1s ease-in-out infinite;
}
.subagent-header.done::before {
    animation: none;
    background: #4caf7d;
}
@keyframes subagent-pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}
.subagent-tool {
    font-family: 'DM Mono', monospace;
    font-size: 10px;
    color: var(--text-secondary);
    padding: 2px 0;
}
.subagent-text {
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.5;
    margin-top: 4px;
    white-space: pre-wrap;
}

/* ── Crew Proposal Card (Code Studio → Crew escalation) ─────────────────── */
.crew-proposal-card { border: 1px solid var(--accent, #b07bff); border-radius: 6px; padding: 12px; margin: 12px 0; background: var(--bg-surface, #181824); }
.crew-proposal-banner { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--accent, #b07bff); margin-bottom: 6px; }
.crew-proposal-title { font-weight: 600; margin-bottom: 6px; }
.crew-proposal-desc { color: var(--text-muted, #888); font-size: 13px; margin-bottom: 10px; }
.crew-proposal-tasks { font-family: 'DM Mono', monospace; font-size: 12px; background: var(--bg, #0e0e18); border: 1px solid var(--border, #333); border-radius: 3px; padding: 8px; margin-bottom: 10px; list-style: none; }
.crew-proposal-task { padding: 2px 0; }
.crew-proposal-task-role { color: var(--accent, #b07bff); }
.crew-proposal-meta { font-size: 11px; color: var(--text-muted, #888); margin-bottom: 6px; }
.crew-proposal-reasoning { font-size: 12px; color: var(--text-muted, #888); margin-bottom: 10px; font-style: italic; }
.crew-proposal-actions { display: flex; gap: 8px; }
.crew-proposal-start { background: var(--accent, #b07bff); color: #000; border: none; padding: 6px 14px; border-radius: 3px; cursor: pointer; font-weight: 600; }
.crew-proposal-start:disabled, .crew-proposal-decline:disabled { opacity: 0.5; cursor: not-allowed; }
.crew-proposal-decline { background: transparent; color: var(--text-primary); border: 1px solid var(--border, #333); padding: 6px 14px; border-radius: 3px; cursor: pointer; }
.crew-proposal-link { color: var(--accent, #b07bff); }
.crew-proposal-subnote, .crew-proposal-declined-msg, .crew-proposal-upgrade-msg { font-size: 12px; color: var(--text-muted, #888); margin-top: 6px; }
.crew-proposal-error { color: #e66; font-size: 12px; margin-top: 6px; }

/* ── Crew Live Chat bubbles (post-escalation crewChat subscription) ───────── */
.crew-bubble { border-left: 2px solid #444; padding: 8px 12px; margin: 8px 0; border-radius: 3px; background: var(--bg-surface, #181824); }
.crew-bubble-header { font-family: 'DM Mono', monospace; font-size: 10px; letter-spacing: 0.06em; margin-bottom: 4px; }
.crew-bubble-body { font-size: 13px; white-space: pre-wrap; }
.crew-bubble-actions { display: flex; gap: 6px; margin-top: 8px; }
.crew-bubble-action { font-size: 11px; padding: 4px 10px; border-radius: 3px; border: 1px solid var(--border, #333); background: transparent; color: inherit; cursor: pointer; }
.crew-bubble-action-approve { border-color: #4acf9a; color: #4acf9a; }
.crew-bubble-action-reject { border-color: #ff6b6b; color: #ff6b6b; }
.crew-bubble-resolution { font-family: 'DM Mono', monospace; font-size: 11px; color: var(--text-muted, #888); margin-top: 6px; }
.crew-bubble-operator { border-left-color: #7bbfff; }

.session-crew-badge { font-size: 10px; color: var(--accent, #b07bff); text-decoration: none; padding: 2px 6px; border: 1px solid var(--accent, #b07bff); border-radius: 10px; margin-left: 6px; }
.session-crew-badge:hover { background: var(--accent, #b07bff); color: #000; }