.card {
    background: var(--bg2); border: 1px solid var(--bd2);
    border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: border-color 0.2s;
}
/* Accent-bordered cards get a subtle top glow */
.card[style*="border-color: var(--acc)"],
.card[style*="border-color:var(--acc)"] {
    box-shadow: 0 4px 12px rgba(0,0,0,0.2), 0 -1px 0 rgba(0,200,245,0.15) inset;
}

.ch {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; border-bottom: 1px solid var(--bd); flex-wrap: wrap;
}
.ct {
    font-size: 11px; font-weight: 700; color: var(--txt); text-transform: uppercase;
    letter-spacing: 1px; white-space: nowrap; font-family: var(--mono);
}
.cb { padding: 16px; }
.cb.p0 { padding: 0; }

.g2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.g3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.g4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.g-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }

/* Pills */
.pill {
    display: inline-block; padding: 3px 8px; border-radius: 12px; font-size: 9px;
    font-weight: 800; border: 1px solid transparent; font-family: var(--mono);
    letter-spacing: .5px; white-space: nowrap; text-transform: uppercase;
}
.p-ok   { color: var(--ok);   background: rgba(0,232,122,.1);  border-color: rgba(0,232,122,.2);  }
.p-warn { color: var(--warn); background: rgba(255,168,38,.1); border-color: rgba(255,168,38,.2); }
.p-err  { color: var(--err);  background: rgba(255,48,80,.1);  border-color: rgba(255,48,80,.2);  }
.p-acc  { color: var(--acc);  background: var(--acc-dim);      border-color: rgba(0,200,245,.2);  }
.p-node { color: var(--txt2);     background: rgba(122,150,178,.1);border-color: rgba(122,150,178,.2);}

/* Stat cards */
.stat-big {
    text-align: center; padding: 20px 10px; background: var(--bg3); border: 1px solid var(--bd2);
    border-radius: var(--r); position: relative; overflow: hidden; transition: border-color 0.2s;
}
.stat-big::before { content:''; position:absolute; top:0; left:0; width:100%; height:2px; background: var(--bd2); }
.stat-big.hl-acc::before { background: var(--acc); box-shadow: var(--glow-sm) var(--acc-glow); }
.stat-big.hl-err::before { background: var(--err); box-shadow: var(--glow-sm) var(--err-glow); }
.stat-big.hl-ok::before  { background: var(--ok);  box-shadow: var(--glow-sm) var(--ok-glow);  }
.stat-big.hl-warn::before{ background: var(--warn);box-shadow: var(--glow-sm) var(--warn-glow);}
.stat-big .n { font-size: 36px; font-weight: 800; color: var(--txt); font-family: var(--mono); line-height: 1; }
.stat-big .l { font-size: 10px; color: var(--txt3); margin-top: 8px; letter-spacing: 1px; text-transform: uppercase; font-weight: 600; }

.stat-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--bd); }
.stat-row:last-child { border-bottom: none; }
.sk { font-size: 11px; color: var(--txt2); font-weight: 500; }
.sv { font-size: 11px; font-family: var(--mono); color: var(--txt); }

/* Node cards */
.node-card {
    background: var(--bg3); border: 1px solid var(--bd2); border-radius: var(--r);
    padding: 16px; cursor: pointer; transition: all .2s;
    display: flex; flex-direction: column; gap: 8px;
}
.node-card:hover {
    border-color: var(--acc); transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3), 0 0 0 1px rgba(0,200,245,0.1);
}
.nc-on   { border-left: 3px solid var(--ok);   }
.nc-warn { border-left: 3px solid var(--warn);  }
.nc-off  { border-left: 3px solid var(--bd2); opacity: 0.65; }

.nid { font-family: var(--mono); font-size: 13px; color: var(--acc); font-weight: 800; }
.nstats { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; background: rgba(0,0,0,0.2); padding: 8px; border-radius: 4px; }
.nstat { font-size: 10px; font-family: var(--mono); color: var(--txt2); display: flex; justify-content: space-between; }
.nstat span { color: var(--txt); font-weight: 700; }

.ep-btn { background: var(--bg3); border: 1px solid var(--bd2); border-radius: var(--r); padding: 12px; cursor: pointer; transition: all .15s; display: flex; flex-direction: column; gap: 4px; }
.ep-btn:hover { border-color: var(--acc); background: var(--bg2); box-shadow: 0 0 0 1px rgba(0,200,245,0.08); }
.ep-path { font-family: var(--mono); font-size: 11px; color: var(--acc); font-weight: 700; }
.ep-desc { font-size: 10px; color: var(--txt2); }
.ep-ok  { border-color: rgba(0,232,122,.35);  border-top: 2px solid var(--ok); }
.ep-err { border-color: rgba(255,48,80,.35);  border-top: 2px solid var(--err); }

/* ==================== 5. BUTTONS ==================== */
.btn {
    background: var(--bg3); color: var(--txt); border: 1px solid var(--bd2);
    padding: 8px 16px; border-radius: var(--r); cursor: pointer; font-size: 10px;
    font-weight: 700; transition: all .15s; text-transform: uppercase;
    letter-spacing: 0.5px; font-family: var(--sans); white-space: nowrap;
}
.btn:hover { background: var(--bd2); color: var(--txt); border-color: var(--txt3); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

.btn-acc  { background: var(--acc-dim); color: var(--acc); border-color: rgba(0,200,245,.35); }
.btn-acc:hover  {
    background: var(--acc); color: #000; border-color: var(--acc);
    box-shadow: var(--glow-sm) var(--acc-glow), var(--glow-md) rgba(0,200,245,0.08);
}

.btn-ok   { background: rgba(0,232,122,.08); color: var(--ok);   border-color: rgba(0,232,122,.3); }
.btn-ok:hover   {
    background: var(--ok); color: #000; border-color: var(--ok);
    box-shadow: var(--glow-sm) var(--ok-glow);
}

.btn-warn { background: rgba(255,168,38,.08); color: var(--warn); border-color: rgba(255,168,38,.3); }
.btn-warn:hover {
    background: var(--warn); color: #000; border-color: var(--warn);
    box-shadow: var(--glow-sm) var(--warn-glow);
}

.btn-err  { background: rgba(255,48,80,.08); color: var(--err); border-color: rgba(255,48,80,.3); }
.btn-err:hover  {
    background: var(--err); color: #fff; border-color: var(--err);
    box-shadow: var(--glow-sm) var(--err-glow);
}

.btn-sm { padding: 4px 10px; font-size: 9px; }
.btn-lg { padding: 12px 24px; font-size: 12px; }

/* ==================== 6. FORM ELEMENTS (comprehensive dark-mode fix) ==================== */

/* --- Text inputs, textareas, selects --- */
.inp,
input[type="text"],
input[type="number"],
input[type="url"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="datetime-local"],
input[type="date"],
input[type="time"],
textarea,
select {
    background: rgba(6, 11, 18, 0.7);
    border: 1px solid var(--bd2);
    color: var(--txt);
    padding: 8px 12px;
    border-radius: var(--r);
    font-family: inherit;
    font-size: 12px;
    width: 100%;
    transition: border-color 0.2s, box-shadow 0.2s;
    -webkit-appearance: none;
    appearance: none;
}
.inp:focus,
input[type="text"]:focus,
input[type="number"]:focus,
input[type="url"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="datetime-local"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--acc);
    box-shadow: 0 0 0 2px rgba(0, 200, 245, 0.12), var(--glow-sm) rgba(0, 200, 245, 0.06);
}
.inp:hover:not(:focus),
input:hover:not(:focus),
textarea:hover:not(:focus),
select:hover:not(:focus) {
    border-color: var(--bd3);
}
.inp.mono { font-family: var(--mono); }

textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
    padding: 10px 12px;
}

/* --- select: fix OS grey background on option elements --- */
<style>
    /* ═══════════════════════════════════════════════════════════════
       OVERVIEW — TACTICAL OPERATIONS CENTRE
       Fully integrated with global style.css variables.
       ═══════════════════════════════════════════════════════════════ */
    
    /* ── Mini map tile rendering ── */
    [id^="ovmap-"] { background: var(--bg); }
    [id^="ovmap-"] .leaflet-tile-pane   { -webkit-transform:translate3d(0,0,0); transform:translate3d(0,0,0); }
    [id^="ovmap-"] .leaflet-tile        { -webkit-backface-visibility:hidden; backface-visibility:hidden; will-change:transform; outline:1px solid transparent; }
    [id^="ovmap-"] .leaflet-container   { background:var(--bg) !important; cursor:default !important; }
    [id^="ovmap-"] .leaflet-control-container { display:none; }
  
    /* optgroup dark theme */
    optgroup { background:var(--bg2); color:var(--txt3); font-size:8px; letter-spacing:.5px; }
    optgroup option { background:var(--bg2); color:var(--txt); font-size:10px; letter-spacing:0; }
      
    /* ── Scan-line overlay ── */
    .ov-scan {
        position: fixed; inset: 0; pointer-events: none; z-index: 1;
        background: repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.06) 2px,rgba(0,0,0,.06) 4px);
    }
    
    /* ── KPI header strip ── */
    .ov-hdr {
        display: grid;
        grid-template-columns: repeat(4,1fr) 2fr;
        gap: 8px;
        flex-shrink: 0;
    }
    .ov-kpi {
        background: var(--bg2);
        border: 1px solid var(--bd2);
        border-radius: var(--r);
        padding: 10px 14px;
        position: relative;
        overflow: hidden;
        transition: border-color .2s, box-shadow .2s;
        cursor: default;
    }
    .ov-kpi::before {
        content: '';
        position: absolute; top: 0; left: 0; right: 0; height: 2px;
        background: var(--kpi-col, var(--acc));
        box-shadow: 0 0 8px var(--kpi-col, var(--acc));
    }
    .ov-kpi:hover {
        border-color: var(--kpi-col, var(--acc));
        box-shadow: 0 0 0 1px var(--kpi-col, var(--acc)), inset 0 0 20px rgba(0,0,0,.2);
    }
    .ov-kpi-val {
        font-size: 26px; font-weight: 900; font-family: var(--mono);
        color: var(--kpi-col, var(--acc)); line-height: 1;
        margin-bottom: 3px; letter-spacing: -1px;
        transition: transform .15s;
    }
    .ov-kpi:hover .ov-kpi-val { transform: scale(1.03); }
    .ov-kpi-lbl { font-size: 10px; color: var(--txt3); font-family: var(--mono); letter-spacing: 1.5px; text-transform: uppercase; }
    .ov-kpi-sub { font-size: 10px; color: var(--txt3); font-family: var(--mono); margin-top: 2px; }
    
    /* Connection status KPI */
    .ov-conn-kpi {
        background: var(--bg2); border: 1px solid var(--bd2); border-radius: var(--r);
        padding: 10px 14px; display: flex; flex-direction: column; justify-content: space-between;
        position: relative; overflow: hidden;
    }
    .ov-conn-kpi::before {
        content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
        background: linear-gradient(90deg, var(--acc), var(--ok));
    }
    .ov-conn-top { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
    .ov-conn-dot {
        width: 10px; height: 10px; border-radius: 50%;
        background: var(--txt3); flex-shrink: 0; transition: background .3s, box-shadow .3s;
    }
    .ov-conn-dot.on   { background: var(--ok);   box-shadow: var(--glow-sm) var(--ok-glow);   animation: ov-blink 2s ease-in-out infinite; }
    .ov-conn-dot.warn { background: var(--warn);  box-shadow: var(--glow-sm) var(--warn-glow); animation: ov-blink 1.5s ease-in-out infinite; }
    .ov-conn-dot.err  { background: var(--err);   box-shadow: var(--glow-sm) var(--err-glow);  }
    @keyframes ov-blink { 0%,100%{opacity:1} 50%{opacity:.3} }
    .ov-conn-status { font-family: var(--mono); font-size: 11px; font-weight: bold; color: var(--txt); }
    .ov-conn-bars { display: flex; gap: 3px; align-items: flex-end; height: 18px; }
    .ov-conn-bar { width: 5px; border-radius: 1px; transition: background .3s, height .4s ease; }
    
    /* ── Outer container: use dynamic viewport height for mobile ── */
    /* dvh accounts for mobile browser chrome; fallback to vh for older browsers */
    .vs {
        height: calc(100vh - 90px); /* fallback */
        height: calc(100dvh - 90px);
    }
    
    /* ── Main layout grid ── */
    .ov-grid {
        display: grid; grid-template-columns: 1fr 340px;
        gap: 10px; flex: 1; min-height: 0;
    }
    
    /* ── Node grid container ── */
    .ov-node-toolbar {
        display: flex; gap: 6px; align-items: center;
        padding: 8px 12px;
        background: var(--bg2); border-bottom: 1px solid var(--bd2);
        flex-shrink: 0;
    }
    #ov-node-grid {
        flex: 1; overflow-y: auto; padding: 10px;
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
        gap: 8px; align-content: start;
    }
    #ov-node-grid::-webkit-scrollbar { width: 4px; }
    #ov-node-grid::-webkit-scrollbar-thumb { background: var(--bd2); border-radius: 2px; }
    #ov-node-grid::-webkit-scrollbar-thumb:hover { background: var(--acc); }
    
    /* ══════════════════════════════════════════════════════════════
       NODE CARD — fixed height, every section accounted for.
       padding-top:10 + head:42 + bat:24 + spark:26 + loc:30 + grid:70 + map:76 + foot:24 = 302px
       ══════════════════════════════════════════════════════════════ */
    .ov-nc {
        background: var(--bg2);
        border: 1px solid var(--bd2);
        border-radius: var(--r);
        padding: 10px 10px 0;
        cursor: pointer;
        transition: border-color .18s, box-shadow .18s, transform .18s;
        position: relative;
        overflow: visible;            /* tooltip can escape card bounds */
        display: flex;
        flex-direction: column;
        height: 302px;
        animation: ov-slide-in .2s ease both;
    }
    /* Left accent bar */
    .ov-nc::before {
        content: '';
        position: absolute; top: 0; left: 0; bottom: 0; width: 3px;
        background: var(--nc-col, var(--bd2));
        border-radius: var(--r) 0 0 var(--r);
        transition: background .18s;
        pointer-events: none;
    }
    .ov-nc:hover {
        border-color: var(--nc-col, var(--acc));
        box-shadow: 0 4px 20px rgba(0,0,0,.5), var(--glow-sm) var(--acc-glow);
        transform: translateY(-1px);
    }
    .ov-nc.nc-local { border-color: rgba(0,232,122,.3); }
    .ov-nc.nc-local::before { background: var(--ok); }
    
    /* ── 1. Header — 42px ── */
    .ov-nc-head {
        display: flex; align-items: flex-start; gap: 9px;
        padding-left: 6px;
        height: 34px;          /* avatar height */
        margin-bottom: 8px;
        flex-shrink: 0;
        overflow: hidden;
    }
    .ov-nc-avatar {
        width: 34px; height: 34px; border-radius: 6px; flex-shrink: 0;
        display: flex; align-items: center; justify-content: center;
        font-size: 13px; font-weight: 900; font-family: var(--mono);
        color: #060b12; position: relative;
        box-shadow: 0 2px 8px rgba(0,0,0,.4);
    }
    .ov-nc-role-ico {
        position: absolute; bottom: -3px; right: -3px;
        width: 14px; height: 14px; border-radius: 50%;
        background: var(--bg2); border: 1px solid var(--bd2);
        font-size: 8px; font-family: var(--mono); font-weight: bold;
        display: flex; align-items: center; justify-content: center;
        color: var(--txt3); letter-spacing: 0;
    }
    .ov-nc-meta { flex: 1; min-width: 0; overflow: hidden; }
    .ov-nc-name {
        font-size: 12px; font-weight: 700; font-family: var(--mono);
        color: var(--txt); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
        line-height: 1.3; letter-spacing: .2px;
    }
    .ov-nc-sub {
        font-size: 8px; color: var(--txt3); font-family: var(--mono);
        margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    }
    .ov-nc-status {
        display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0;
    }
    .ov-online-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; transition: background .3s, box-shadow .3s; }
    .ov-online-dot.on  { background: var(--ok); box-shadow: var(--glow-sm) var(--ok-glow); animation: ov-blink 2.5s ease-in-out infinite; }
    .ov-online-dot.off { background: var(--bd2); }
    .ov-nc-heard { font-size: 10px; font-family: var(--mono); color: var(--txt3); }
    
    /* ── 2. Battery bar — 24px ── */
    .ov-bat-wrap {
        height: 18px;           /* row 10px + track 5px + gap 3px */
        margin-bottom: 6px;
        flex-shrink: 0;
    }
    .ov-bat-row {
        display: flex; justify-content: space-between; align-items: center;
        margin-bottom: 3px; height: 10px;
    }
    .ov-bat-lbl { font-size: 9px; color: var(--txt3); font-family: var(--mono); letter-spacing: .3px; line-height: 1; }
    .ov-bat-val { font-size: 10px; font-family: var(--mono); font-weight: bold; line-height: 1; }
    .ov-bat-track {
        height: 5px; background: var(--bg); border-radius: 3px;
        overflow: hidden; border: 1px solid var(--bd);
    }
    .ov-bat-fill {
        height: 100%; border-radius: 3px; transition: width .5s ease;
    }
    
    /* ── 3. Sparkline — 26px ── */
    .ov-nc-spark-wrap {
        height: 20px;
        margin-bottom: 6px;
        background: var(--bg); border-radius: 3px; overflow: hidden;
        border: 1px solid var(--bd);
        flex-shrink: 0;
    }
    
    /* ── 4. Location strip — 30px ── */
    .ov-nc-loc {
        display: flex; align-items: center; gap: 5px;
        height: 24px;
        padding: 0 6px;
        margin-bottom: 6px;
        background: var(--bg); border: 1px solid var(--bd);
        border-radius: 4px; font-family: var(--mono); font-size: 9px;
        color: var(--txt3); position: relative;
        transition: border-color .15s, color .15s;
        flex-shrink: 0;
        overflow: visible;      /* tooltip escapes upward */
    }
    .ov-nc-loc.has-fix { color: var(--txt2); cursor: pointer; border-color: var(--bd2); }
    .ov-nc-loc.has-fix:hover { border-color: var(--acc); color: var(--acc); }
    .ov-nc-loc-ico { flex-shrink: 0; opacity: .6; }
    .ov-nc-loc-txt { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
    
    /* Geo tooltip — floats above the strip */
    .ov-geo-tip {
        display: none;
        position: absolute; bottom: calc(100% + 5px); left: -1px; right: -1px;
        background: var(--bg2); border: 1px solid var(--acc);
        border-radius: 4px; padding: 8px 10px;
        font-family: var(--mono); font-size: 9px; color: var(--txt2);
        line-height: 1.6; z-index: 9999; pointer-events: none;
        box-shadow: 0 6px 24px rgba(0,0,0,.75);
        white-space: normal; word-break: break-word;
    }
    .ov-nc-loc.has-fix:hover .ov-geo-tip { display: block; }
    
    /* ── 5. Stats grid — always 6 cells / 2 rows — 70px ── */
    .ov-nc-grid {
        display: grid; grid-template-columns: repeat(3,1fr);
        gap: 4px; margin-bottom: 6px;
        height: 64px;           /* 2 × (28px cell) + 4px gap + 4px = 64px */
        flex-shrink: 0;
        overflow: hidden;
    }
    .ov-nc-cell {
        background: var(--bg); border: 1px solid var(--bd);
        border-radius: 4px; padding: 4px 5px; text-align: center;
        transition: border-color .15s;
        height: 30px; overflow: hidden;
    }
    .ov-nc-cell-empty { opacity: .25; }
    .ov-nc-cell:hover:not(.ov-nc-cell-empty) { border-color: var(--bd2); }
    .ov-nc-cell-val {
        font-size: 11px; font-weight: bold; font-family: var(--mono);
        color: var(--txt); white-space: nowrap; line-height: 1.2;
        overflow: hidden; text-overflow: ellipsis;
    }
    .ov-nc-cell-lbl {
        font-size: 8px; color: var(--txt3); font-family: var(--mono);
        letter-spacing: .3px; margin-top: 1px; text-transform: uppercase;
    }
    
    /* ── 7. Footer — 24px ── */
    .ov-nc-foot {
        display: flex; align-items: center; gap: 6px;
        height: 20px;
        padding: 0 6px;
        background: var(--bg);
        border: 1px solid var(--bd);
        border-radius: 4px;
        font-family: var(--mono); font-size: 9px; color: var(--txt3);
        flex-shrink: 0;
        overflow: hidden;
        margin-bottom: 4px;
    }
    .ov-nc-foot-stat { display: flex; align-items: center; gap: 3px; }
    .ov-nc-foot-stat i { font-size: 8px; color: var(--txt3); }
    .ov-nc-dm-btn {
        margin-left: auto; flex-shrink: 0;
        background: none; border: 1px solid var(--bd2);
        color: var(--txt3); border-radius: 3px; padding: 1px 7px;
        font-family: var(--mono); font-size: 8px; cursor: pointer;
        letter-spacing: .5px; transition: all .15s; line-height: 12px;
    }
    .ov-nc-dm-btn:hover {
        border-color: var(--acc); color: var(--acc);
        background: var(--acc-dim); box-shadow: var(--glow-sm) var(--acc-glow);
    }
    
    /* Signal bars */
    .ov-sig-bars { display: flex; gap: 2px; align-items: flex-end; height: 14px; flex-shrink: 0; }
    .ov-sig-bar  { width: 4px; border-radius: 1px; background: var(--bd2); transition: background .2s; }
    .ov-sig-bar.lit { background: var(--nc-col, var(--acc)); }
    
    /* ── 6. Mini map — 72px + 4px margin = 76px ── */
    .ov-nc-map {
        flex-shrink: 0;
        height: 72px;
        position: relative;
        border: 1px solid var(--bd);
        border-radius: 4px;
        margin-bottom: 4px;
        overflow: hidden;
        background: var(--bg);
    }
  
    .ov-nc-map > div[id^="ovmap-"] { width: 100%; height: 100%; }
    .ov-nc-map-nofix {
        position: absolute; inset: 0;
        display: flex; align-items: center; justify-content: center;
        font-family: var(--mono); font-size: 9px; font-weight: bold;
        color: var(--txt3); letter-spacing: 1px; pointer-events: none;
    }
    .ov-nc-map-badge {
        position: absolute; bottom: 4px; right: 5px;
        font-family: var(--mono); font-size: 8px; font-weight: bold;
        color: #060b12; padding: 1px 5px; border-radius: 2px;
        pointer-events: none; z-index: 2; letter-spacing: .5px;
    }
    
    /* ── Right panel ── */
    .ov-right {
        display: flex; flex-direction: column; gap: 10px;
        min-height: 0; overflow-y: auto;
    }
    .ov-right::-webkit-scrollbar { width: 3px; }
    .ov-right::-webkit-scrollbar-thumb { background: var(--bd2); border-radius: 2px; }
    
    /* Mesh health */
    .ov-health-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 8px; }
    .ov-hlth {
        background: var(--bg); border: 1px solid var(--bd2);
        border-radius: 4px; padding: 8px; text-align: center;
        transition: border-color .15s;
    }
    .ov-hlth:hover { border-color: var(--bd3); }
    .ov-hlth-val { font-size: 16px; font-weight: bold; font-family: var(--mono); line-height: 1; }
    .ov-hlth-lbl { font-size: 9px; color: var(--txt3); font-family: var(--mono); letter-spacing: .5px; margin-top: 3px; }
    
    /* Ring gauges */
    .ov-ring-wrap { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 6px; }
    .ov-ring-item { text-align: center; }
    .ov-ring-svg  { overflow: visible; }
    .ov-ring-svg circle:last-of-type { filter: drop-shadow(0 0 3px currentColor); }
    .ov-ring-lbl  { font-size: 9px; color: var(--txt3); font-family: var(--mono); margin-top: 3px; letter-spacing: .5px; }
    
    /* Live feed */
    .ov-feed {
        flex: 1; overflow-y: auto; background: #03070c;
        padding: 8px; border-radius: 0 0 var(--r) var(--r);
        font-family: var(--mono); font-size: 10px; line-height: 1.7; min-height: 0;
    }
    .ov-feed::-webkit-scrollbar { width: 3px; }
    .ov-feed::-webkit-scrollbar-thumb { background: var(--bd2); border-radius: 2px; }
    .ov-feed-row {
        display: flex; gap: 6px;
        border-bottom: 1px solid rgba(255,255,255,.03);
        padding-bottom: 1px; margin-bottom: 1px;
    }
    .ov-feed-ts  { color: var(--txt3); width: 58px; flex-shrink: 0; }
    .ov-feed-dir { width: 28px; flex-shrink: 0; font-weight: bold; color: var(--acc); }
    .ov-feed-typ { width: 32px; flex-shrink: 0; }
    .ov-feed-pay { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--txt2); }
    
    /* Pagination */
    .ov-pages {
        display: flex; justify-content: space-between; align-items: center;
        padding: 6px 10px; border-top: 1px solid var(--bd2);
        flex-shrink: 0; background: var(--bg2);
        border-radius: 0 0 var(--r) var(--r);
    }
    .ov-page-lbl { font-family: var(--mono); font-size: 9px; color: var(--txt2); }
    
    /* Sparkline wrapper */
    .ov-nc-spark-wrap {
        height: 20px; margin-bottom: 6px;
        background: var(--bg); border-radius: 3px; overflow: hidden;
        border: 1px solid var(--bd);
    }
    
    /* Card entry animation */
    @keyframes ov-slide-in {
        from { opacity:0; transform:translateY(6px); }
        to   { opacity:1; transform:translateY(0); }
    }
    
    /* ── Responsive ── */
  
    /* ≤1280px: stack left/right panels, right panel goes horizontal row */
    @media (max-width: 1280px) {
        .ov-grid {
            grid-template-columns: 1fr;
            overflow-y: visible;
            height: auto;
        }
        .ov-right {
            flex-direction: row;
            flex-wrap: wrap;
            overflow: visible;
            min-height: 0;
        }
        .ov-right > .card { flex: 1; min-width: 280px; }
    }
  
    /* ≤900px: KPI header 2-col, node grid smaller cards */
    @media (max-width: 900px) {
        .ov-hdr { grid-template-columns: 1fr 1fr; }
        .ov-conn-kpi { grid-column: 1/-1; }
        #ov-node-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
    }
  
    /* ≤700px: full mobile — single column everything, no height constraints */
    @media (max-width: 768px) {
        /* Remove the fixed viewport height so the page can scroll naturally */
        .vs[style] {
            height: auto !important;
            min-height: 0 !important;
            overflow: visible !important;
        }
  
        /* Sidebar: push below on mobile */
        .ov-grid { grid-template-columns: 1fr; overflow-y: visible; height: auto; }
  
        /* KPI strip: 2 cols */
        .ov-hdr { grid-template-columns: 1fr 1fr; gap: 6px; }
        .ov-conn-kpi { grid-column: 1/-1; }
        .ov-kpi-val { font-size: 20px; }
  
        /* Node grid: full width single column */
        #ov-node-grid {
            grid-template-columns: 1fr;
            height: auto;
            overflow: visible;
            max-height: none;
        }
  
        /* Node registry card grows with content */
        .ov-grid > .card:first-child {
            height: auto; min-height: 0;
            overflow: visible;
            display: flex; flex-direction: column;
        }
        .ov-grid > .card:first-child #ov-node-grid {
            flex: none; overflow: visible; height: auto;
        }
  
        /* Right panel: full width */
        .ov-right {
            flex-direction: column; overflow: visible;
        }
        .ov-right > .card {
            min-width: 0; width: 100%; height: auto; min-height: 200px;
        }
  
        /* Live feed: fixed reasonable height on mobile */
        .ov-feed { max-height: 300px; min-height: 150px; }
  
        /* Node cards: full width, flexible height */
        .ov-nc { width: 100%; height: auto; min-height: 302px; }
  
        /* Pagination bar always visible */
        .ov-pages { position: sticky; bottom: 0; z-index: 10; }
  
        /* Toolbar: wrap on narrow screens */
        .ov-node-toolbar { flex-wrap: wrap; gap: 4px; }
        .ov-node-toolbar input,
        .ov-node-toolbar select { flex: 1; min-width: 90px; font-size: 11px !important; }
        .ov-node-toolbar input#node-search { width: 100%; }
    }
  
    /* ≤480px: very small phones */
    @media (max-width: 480px) {
        .ov-hdr { grid-template-columns: 1fr 1fr; gap: 4px; }
        .ov-kpi { padding: 8px 10px; }
        .ov-kpi-val { font-size: 18px; }
        .ov-node-toolbar { flex-wrap: wrap; gap: 4px; }
        .ov-node-toolbar input,
        .ov-node-toolbar select { width: auto; flex: 1; min-width: 80px; }
    }
    </style>

/* ── Additional demo-only styles ── */
@keyframes ov-slide-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }
@keyframes panelIn { from { opacity:0; transform:translateY(6px); } to { opacity:1; transform:translateY(0); } }
@keyframes hero-pulse { 0%,100%{opacity:.4} 50%{opacity:1} }

.io-led { width:7px;height:7px;border-radius:50%;background:var(--bd2);transition:background .15s,box-shadow .15s; }
.io-led.flash-tx { background:var(--acc); box-shadow:0 0 6px var(--acc); }
.io-led.flash-rx { background:var(--ok); box-shadow:0 0 6px var(--ok); }

/* Sidebar nav */
.nsec { padding:8px 14px 4px;font-family:var(--mono);font-size:8px;color:var(--txt3);letter-spacing:1.5px;border-top:1px solid var(--bd2); }
.ni { display:flex;align-items:center;gap:8px;padding:7px 14px;font-family:var(--mono);font-size:10px;color:var(--txt3);cursor:pointer;transition:background .1s,color .1s;white-space:nowrap; }
.ni:hover { background:rgba(0,200,245,.06);color:var(--txt); }
.ni.active { background:rgba(0,200,245,.1);color:var(--acc);border-left:2px solid var(--acc); }
.ni .ico { width:18px;text-align:center;font-size:12px;flex-shrink:0; }
.ni-disabled { opacity:.35;cursor:not-allowed; }

/* Source badges */
.src-badge { font-family:var(--mono);font-size:7px;font-weight:bold;padding:1px 5px;border-radius:2px;letter-spacing:.5px; }
.src-rf { color:var(--ok);border:1px solid rgba(0,240,144,.3);background:rgba(0,240,144,.08); }
.src-mqtt { color:#b060ff;border:1px solid rgba(176,96,255,.3);background:rgba(176,96,255,.08); }
.src-local { color:var(--acc);border:1px solid rgba(0,200,245,.3);background:rgba(0,200,245,.08); }

/* Mini map in node card */
[id^="ovmap-"] .leaflet-control-container { display:none; }

/* Scan-line overlay */
.ov-scan { position:fixed;inset:0;pointer-events:none;z-index:1;background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,0,0,.06) 2px,rgba(0,0,0,.06) 4px); }

/* Page indicator */
.ov-pages { display:flex;align-items:center;justify-content:center;gap:10px;padding:6px 10px;background:var(--bg2);border-top:1px solid var(--bd2);flex-shrink:0; }
.ov-page-lbl { font-family:var(--mono);font-size:9px;color:var(--txt3); }

/* Dashboard brand in topbar */
.brand { font-family:var(--sans);font-weight:900;font-size:14px;color:var(--txt);letter-spacing:-.01em;flex-shrink:0; }
.brand em { color:var(--acc);font-style:normal; }

/* ── Node card mini-map ── */
.ov-nc-map { position:relative; width:100%; height:100px; background:var(--bg); border:1px solid var(--bd2); border-radius:4px; overflow:hidden; flex-shrink:0; }
.ov-nc-map-nofix { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-family:var(--mono); font-size:8px; color:var(--txt3); letter-spacing:1px; background:var(--bg); z-index:2; }
.ov-nc-map-badge { position:absolute; top:4px; right:4px; font-family:var(--mono); font-size:7px; font-weight:800; color:#000; padding:1px 5px; border-radius:2px; z-index:3; }
.ov-nc-cell-empty { opacity: .3; }

/* ── Node card footer stats ── */
.ov-nc-foot-stat { display:flex; align-items:center; gap:3px; font-family:var(--mono); font-size:9px; color:var(--txt3); }
.ov-nc-foot-stat i { font-size:8px; }

/* ── Task table ── */
.task-table { width:100%; border-collapse:collapse; font-family:var(--mono); font-size:11px; }
.task-table th { text-align:left; color:var(--txt3); padding:8px 12px; border-bottom:1px solid var(--bd2); font-weight:normal; white-space:nowrap; }
.task-table td { padding:12px; border-bottom:1px solid rgba(255,255,255,.02); color:var(--txt); vertical-align:middle; }
.task-table tr:hover { background:rgba(255,255,255,.02); }
.c2-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:12px; padding:16px; }
.c2-node-card { background:var(--bg2); border:1px solid var(--bd); border-radius:var(--r); padding:12px; cursor:pointer; transition:all .2s; display:flex; align-items:center; gap:12px; }
.c2-node-card:hover { border-color:var(--acc); background:rgba(0,200,245,.05); }
.c2-avatar { width:32px; height:32px; border-radius:4px; background:var(--bg); border:1px solid var(--bd); display:flex; align-items:center; justify-content:center; font-family:var(--mono); font-size:12px; font-weight:bold; color:var(--txt); box-shadow:inset 0 0 10px rgba(0,0,0,.5); }
.c2-name { font-weight:bold; font-size:12px; color:var(--txt); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.c2-id { font-family:var(--mono); font-size:9px; color:var(--txt3); margin-top:2px; }

/* ── Shark styles ── */
.sh-toolbar { display:flex; align-items:center; gap:8px; padding:8px 12px; background:var(--bg2); border:1px solid var(--bd2); border-radius:var(--r); margin-bottom:8px; overflow-x:auto; }
.sh-toolbar .sep { width:1px; height:20px; background:var(--bd); margin:0 4px; }
.sh-pill-bar { display:flex; gap:6px; padding:0 0 12px 0; overflow-x:auto; }
.sh-pill { background:var(--bg); border:1px solid var(--bd); color:var(--txt3); padding:4px 12px; border-radius:16px; font-family:var(--mono); font-size:9px; font-weight:bold; cursor:pointer; display:flex; align-items:center; gap:6px; transition:all .2s; }
.sh-pill:hover { border-color:var(--acc); color:var(--txt); }
.sh-pill.active { background:rgba(0,200,245,.1); border-color:var(--acc); color:var(--acc); }
.sh-pill-cnt { background:rgba(0,0,0,.5); padding:2px 6px; border-radius:8px; color:var(--txt); }
.sh-main-split { display:flex; flex:1; gap:12px; overflow:hidden; }
.sh-sidebar { width:220px; display:flex; flex-direction:column; background:var(--bg2); border:1px solid var(--bd2); border-radius:var(--r); overflow:hidden; flex-shrink:0; }
.sh-sb-item { display:flex; align-items:center; gap:8px; padding:8px 12px; border-bottom:1px solid var(--bd); cursor:pointer; transition:.1s; }
.sh-sb-item:hover { background:var(--bg); }
.sh-sb-item.active { background:rgba(0,200,245,.1); border-left:2px solid var(--acc); }
.sh-table-area { flex:1; display:flex; flex-direction:column; overflow:hidden; background:var(--bg2); border:1px solid var(--bd2); border-radius:var(--r); }
.sh-table-wrap { flex:1; overflow:auto; min-height:150px; background:#03070c; }
.sh-table { width:100%; border-collapse:collapse; font-family:var(--mono); font-size:10px; table-layout:fixed; }
.sh-table th { position:sticky; top:0; background:var(--bg2); color:var(--txt3); padding:8px; text-align:left; border-bottom:1px solid var(--bd); cursor:pointer; z-index:10; white-space:nowrap; }
.sh-table th:hover { color:var(--acc); }
.sh-table td { padding:4px 8px; border-bottom:1px solid rgba(255,255,255,.02); overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--txt); }
.sh-table tr { cursor:pointer; }
.sh-table tr:hover { background:rgba(255,255,255,.04); }
.sh-table tr.selected { background:rgba(0,200,245,.15); }
.c-no { width:50px; color:var(--txt3)!important; text-align:right; }
.c-time { width:75px; color:var(--txt3)!important; }
.c-dt { width:55px; color:var(--warn)!important; }
.c-src,.c-dst { width:100px; color:var(--acc)!important; }
.c-ch { width:35px; text-align:center; }
.c-proto { width:90px; font-weight:bold; }
.c-snr { width:70px; }
.sh-resizer { height:6px; background:var(--bd2); cursor:ns-resize; display:flex; align-items:center; justify-content:center; }
.sh-resizer::after { content:'⠿'; font-size:8px; color:var(--txt3); pointer-events:none; }
.sh-detail-pane { height:250px; display:flex; background:var(--bg); border-top:1px solid var(--bd2); }
.sh-detail-col { flex:1; display:flex; flex-direction:column; border-right:1px solid var(--bd); overflow:hidden; }
.sh-detail-col:last-child { border-right:none; }
.sh-d-head { background:var(--bg2); padding:6px 12px; font-family:var(--mono); font-size:9px; font-weight:bold; color:var(--txt3); border-bottom:1px solid var(--bd); text-transform:uppercase; letter-spacing:1px; }
.sh-d-body { flex:1; overflow:auto; padding:12px; font-family:var(--mono); font-size:10px; color:var(--txt); }
.jk { color:#74b9ff; } .jstr { color:#55efc4; } .jnum { color:#fdcb6e; } .jboo { color:#a29bfe; } .jnul { color:#e17055; }
.sh-kv { display:flex; gap:8px; margin-bottom:4px; border-bottom:1px dashed rgba(255,255,255,.05); padding-bottom:2px; }
.sh-k { color:var(--txt3); width:100px; flex-shrink:0; }
.sh-v { color:var(--txt); word-break:break-all; }

/* ── Account styles ── */
.ap { max-width:750px; margin:0 auto; padding:20px; }
.ac { background:var(--bg1); border:1px solid var(--bd2); border-radius:var(--r); margin-bottom:16px; overflow:hidden; }
.ah { padding:12px 16px; background:var(--bg2); border-bottom:1px solid var(--bd2); font-family:var(--mono); font-size:11px; text-transform:uppercase; color:var(--txt2); display:flex; align-items:center; gap:8px; }
.ab2 { padding:16px 20px; }
.ar { display:flex; justify-content:space-between; align-items:center; padding:8px 0; border-bottom:1px solid var(--bd); }
.ar:last-child { border-bottom:none; }
.al { font-family:var(--mono); font-size:11px; color:var(--txt3); }
.av { font-family:var(--mono); font-size:12px; color:var(--txt); display:flex; align-items:center; gap:8px; }
.b { font-size:9px; padding:2px 8px; border-radius:3px; font-family:var(--mono); font-weight:700; text-transform:uppercase; }
.b-on { background:rgba(0,240,144,.1); color:var(--ok); border:1px solid rgba(0,240,144,.3); }
.b-off { background:rgba(255,48,80,.1); color:var(--err); border:1px solid rgba(255,48,80,.3); }
.b-na { background:rgba(90,128,168,.1); color:var(--txt3); border:1px solid var(--bd2); }
.b-w { background:rgba(255,180,0,.1); color:#ffb400; border:1px solid rgba(255,180,0,.3); }
.b-acc { background:rgba(0,200,245,.08); color:var(--acc); border:1px solid rgba(0,200,245,.3); }
.bt { font-family:var(--sans); font-weight:700; font-size:11px; text-transform:uppercase; letter-spacing:1px; padding:8px 16px; border-radius:4px; cursor:pointer; transition:all .2s; border:1px solid; display:inline-flex; align-items:center; gap:6px; background:none; }
.bt-s { padding:4px 10px; font-size:9px; }
.bt-p { background:rgba(0,200,245,.08); color:var(--acc); border-color:rgba(0,200,245,.3); }
.bt-p:hover { background:rgba(0,200,245,.15); border-color:var(--acc); }
.bt-d { background:rgba(255,48,80,.08); color:var(--err); border-color:rgba(255,48,80,.3); }
.bt-d:hover { background:rgba(255,48,80,.15); border-color:var(--err); }
.bt:disabled { opacity:.4; cursor:not-allowed; }
.stat-row { display:flex; gap:12px; margin-bottom:12px; }
.stat-box { flex:1; background:var(--bg); border:1px solid var(--bd2); border-radius:var(--r); padding:14px; text-align:center; }
.stat-box .sv { font-size:26px; font-weight:900; font-family:var(--mono); }
.stat-box .sl { font-size:8px; color:var(--txt3); letter-spacing:.5px; margin-top:2px; font-family:var(--mono); text-transform:uppercase; }

/* ── Connection page ── */
.cn-status-bar { display:flex; align-items:center; gap:10px; padding:12px 16px; background:var(--bg2); border:1px solid var(--bd2); border-radius:var(--r); margin-bottom:10px; flex-shrink:0; }
.cn-dot { width:18px; height:18px; border-radius:50%; flex-shrink:0; }
.cn-status-info { flex:1; min-width:0; }
.cn-status-row { display:flex; align-items:center; gap:10px; margin-bottom:6px; }
.cn-kpi-row { display:grid; grid-template-columns:repeat(6,1fr); gap:8px; flex-shrink:0; margin-bottom:10px; }
.cn-kpi { background:var(--bg2); border:1px solid var(--bd2); border-radius:var(--r); padding:8px 10px; text-align:center; }
.cn-kpi-val { font-family:var(--mono); font-size:14px; font-weight:800; }
.cn-kpi-lbl { font-family:var(--mono); font-size:7px; color:var(--txt3); text-transform:uppercase; letter-spacing:1px; margin-top:2px; }
.cn-type-btns { display:flex; align-items:center; gap:10px; flex-shrink:0; margin-bottom:10px; }
.cn-type-btn { padding:6px 14px; border:1px solid var(--bd2); border-radius:4px; background:var(--bg2); color:var(--txt3); font-family:var(--mono); font-size:10px; cursor:pointer; transition:background .2s,color .2s; display:flex; align-items:center; gap:5px; }
.cn-type-btn:hover { border-color:var(--acc); color:var(--txt); }
.cn-type-btn.active { background:rgba(0,200,245,.1); border-color:var(--acc); color:var(--acc); }
.cn-slots-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:10px; flex-shrink:0; }
.cn-slot { background:var(--bg2); border:1px solid var(--bd2); border-radius:var(--r); padding:12px 14px; display:flex; flex-direction:column; gap:5px; cursor:default; }
.cn-slot-header { display:flex; align-items:center; gap:8px; margin-bottom:2px; }

/* ── Node Config ── */
.nc-tab { padding:8px 16px; font-family:var(--mono); font-size:10px; color:var(--txt3); cursor:pointer; border:1px solid transparent; border-radius:var(--r) var(--r) 0 0; transition:all .15s; white-space:nowrap; }
.nc-tab:hover { color:var(--txt); background:var(--bg2); }
.nc-tab.active { color:var(--acc); background:var(--bg2); border-color:var(--bd2) var(--bd2) var(--bg); }

/* ── Settings groups ── */
.g2 { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.inp-mono { font-family:var(--mono)!important; }