:root{
    --bg:#101214;
    --panel:#1b1f22;
    --panel2:#20262a;
    --line:#394149;
    --text:#f4f7f9;
    --muted:#9ba7b0;
    --green:#35d07f;
    --yellow:#f2c94c;
    --orange:#ff8a3d;
    --red:#ff4d5e;
    --cyan:#40c4d8;
}

*{
    box-sizing:border-box;
}

body{
    margin:0;
    min-height:100vh;
    background:var(--bg);
    color:var(--text);
    font-family:Segoe UI,Arial,sans-serif;
}

.shell{
    width:min(1480px,100%);
    margin:0 auto;
    padding:22px;
}

.topbar{
    display:grid;
    grid-template-columns:1fr minmax(320px,520px);
    gap:18px;
    align-items:stretch;
    margin-bottom:18px;
}

.eyebrow{
    margin:0 0 6px;
    color:var(--cyan);
    font-size:13px;
    font-weight:700;
    letter-spacing:0;
    text-transform:uppercase;
}

h1{
    margin:0;
    font-size:clamp(32px,5vw,58px);
    line-height:1;
}

.panel,
.alarmBanner{
    background:linear-gradient(180deg,var(--panel2),var(--panel));
    border:1px solid var(--line);
    border-radius:8px;
    box-shadow:0 14px 36px rgba(0,0,0,.28);
}

.alarmBanner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:18px 20px;
    border-left:8px solid var(--green);
}

.alarmBanner strong{
    display:block;
    margin-top:4px;
    font-size:36px;
    line-height:1;
}

.alarmBanner p{
    margin:0;
    color:var(--muted);
    text-align:right;
}

.label{
    color:var(--muted);
    font-size:12px;
    font-weight:700;
    text-transform:uppercase;
}

.primaryGrid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:18px;
}

.secondaryGrid{
    display:grid;
    grid-template-columns:1.1fr 1.1fr .9fr 1.1fr;
    gap:18px;
    margin-top:18px;
}

.panel{
    padding:18px;
    min-width:0;
}

.panelHeader{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    min-height:28px;
    margin-bottom:18px;
    color:var(--muted);
    font-size:15px;
    font-weight:700;
    text-transform:uppercase;
}

.panelHeader strong{
    color:var(--text);
}

.metricLine{
    display:flex;
    align-items:flex-end;
    gap:10px;
    min-height:92px;
}

.metricLine strong{
    font-size:76px;
    line-height:.92;
}

.metricLine span{
    padding-bottom:10px;
    color:var(--muted);
    font-size:28px;
    font-weight:700;
}

.bar{
    width:100%;
    height:12px;
    overflow:hidden;
    border-radius:999px;
    background:#0c0f11;
    border:1px solid #2d343a;
}

.bar span{
    display:block;
    width:0%;
    height:100%;
    border-radius:999px;
    background:var(--cyan);
    transition:width .35s ease,background-color .35s ease;
}

.subgrid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:12px;
    margin:18px 0 0;
}

.subgrid div,
.statusList div{
    min-width:0;
    padding:12px;
    background:#14181b;
    border:1px solid #2f363d;
    border-radius:6px;
}

dt{
    color:var(--muted);
    font-size:12px;
    font-weight:700;
    text-transform:uppercase;
}

dd{
    margin:6px 0 0;
    font-size:22px;
    font-weight:800;
}

.airPanel{
    display:grid;
    grid-template-columns:160px 1fr;
    column-gap:18px;
}

.airPanel .panelHeader{
    grid-column:1 / -1;
}

.aqiDial{
    width:160px;
    aspect-ratio:1;
    display:grid;
    place-content:center;
    text-align:center;
    border-radius:50%;
    border:10px solid var(--green);
    background:#131719;
}

.aqiDial span{
    color:var(--muted);
    font-size:13px;
    font-weight:800;
}

.aqiDial strong{
    font-size:56px;
    line-height:1;
}

.airRows{
    display:grid;
    gap:18px;
}

.rowHead{
    display:flex;
    justify-content:space-between;
    gap:12px;
    margin-bottom:8px;
}

.rowHead span{
    color:var(--muted);
    font-weight:700;
}

.rowHead strong{
    font-size:22px;
}

.compact{
    margin:0;
    padding:12px;
    background:#14181b;
    border:1px solid #2f363d;
    border-radius:6px;
}

.statusList{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
    margin:0;
}

.heapBar{
    margin-top:14px;
}

.watchdogReason{
    margin:14px 0 0;
    color:var(--muted);
}

.stateValue{
    min-height:72px;
    font-size:30px;
    line-height:1.12;
    font-weight:900;
}

.stateMessage{
    min-height:40px;
    margin:10px 0 16px;
    color:var(--muted);
}

.stateBar{
    margin-bottom:14px;
}

.predictionBox{
    padding:13px 14px;
    border-radius:6px;
    background:#14181b;
    border:1px solid #2f363d;
}

.predictionBox span{
    color:var(--muted);
    font-size:12px;
    font-weight:800;
    text-transform:uppercase;
}

.predictionBox strong{
    display:block;
    margin-top:6px;
    font-size:22px;
}

.predictionBox p{
    margin:6px 0 0;
    color:var(--muted);
}

.sensorPills{
    display:grid;
    gap:10px;
    margin-bottom:14px;
}

.sensorPills span{
    padding:13px 14px;
    border-radius:6px;
    background:#14181b;
    border-left:6px solid var(--muted);
    font-weight:800;
}

.trend{
    display:inline-flex;
    align-items:center;
    min-width:86px;
    justify-content:center;
    padding:6px 8px;
    border-radius:999px;
    background:#14181b;
    border:1px solid #2f363d;
    color:var(--muted);
    font-size:12px;
    font-weight:900;
}

.rising{
    color:var(--orange);
}

.falling{
    color:var(--cyan);
}

.stable{
    color:var(--green);
}

.good{
    border-color:var(--green);
}

.warning{
    border-color:var(--yellow);
}

.high{
    border-color:var(--orange);
}

.critical{
    border-color:var(--red);
}

.alarmPulse{
    animation:pulse 1.2s ease-in-out infinite alternate;
}

@keyframes pulse{
    from{box-shadow:0 14px 36px rgba(0,0,0,.28);}
    to{box-shadow:0 0 28px rgba(255,77,94,.45);}
}

@media(max-width:1120px){
    .topbar,
    .primaryGrid,
    .secondaryGrid{
        grid-template-columns:1fr;
    }

    .airPanel{
        grid-template-columns:160px 1fr;
    }
}

@media(max-width:620px){
    .shell{
        padding:12px;
    }

    .alarmBanner,
    .airPanel{
        display:block;
    }

    .alarmBanner p{
        margin-top:10px;
        text-align:left;
    }

    .aqiDial{
        width:140px;
        margin-bottom:18px;
    }

    .metricLine strong{
        font-size:58px;
    }

    .statusList,
    .subgrid{
        grid-template-columns:1fr;
    }
}