html,
body {
    margin: 0;
    padding: 0;
    background: transparent;
    color: #ffffff;
    font-family: Inter, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

.battery-widget {
    min-height: 100vh;
    padding: 24px;
    background:
        radial-gradient(
            circle at top left,
            rgba(125, 211, 252, 0.10),
            transparent 440px
        ),
        #0f1724;
}

.battery-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    margin-bottom: 24px;
}

.widget-kicker {
    color: #7dd3fc;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 12px;
    margin-bottom: 6px;
}

.battery-header h1 {
    margin: 0;
    font-size: 28px;
    line-height: 1.15;
}

.battery-updated {
    color: #94a3b8;
    font-size: 13px;
    white-space: nowrap;
}


.battery-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 22px;
    padding: 14px 16px;
    border: 1px solid rgba(125, 211, 252, 0.14);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.035);
}

.battery-range-control {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.control-label {
    color: #cdd7e0;
    font-size: 13px;
    font-weight: 600;
}

.range-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.range-button {
    padding: 8px 12px;
    border: 1px solid rgba(125, 211, 252, 0.18);
    border-radius: 999px;
    background: rgba(125, 211, 252, 0.05);
    color: #cdd7e0;
    cursor: pointer;
    font: inherit;
    font-size: 13px;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.range-button:hover,
.range-button.is-active {
    border-color: rgba(125, 211, 252, 0.55);
    background: rgba(125, 211, 252, 0.16);
    color: #ffffff;
}

.current-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: #cdd7e0;
    cursor: pointer;
    font-size: 13px;
    white-space: nowrap;
}

.current-toggle input {
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: #f59e0b;
}

.battery-layout {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.battery-card {
    min-width: 0;
    padding: 24px;
    border: 1px solid rgba(125, 211, 252, 0.14);
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.045);
    box-shadow:
        0 18px 50px rgba(0, 0, 0, 0.18);
}

.battery-card-lv {
    grid-column: 1 / -1;
}

.battery-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    margin-bottom: 22px;
}

.battery-card-header h2 {
    margin: 0;
    font-size: 22px;
    line-height: 1.2;
}

.battery-bank-badge {
    padding: 5px 10px;
    border: 1px solid rgba(125, 211, 252, 0.24);
    border-radius: 999px;
    background: rgba(125, 211, 252, 0.08);
    color: #7dd3fc;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.10em;
}

.battery-bank-badge-lv {
    border-color: rgba(52, 211, 153, 0.25);
    background: rgba(52, 211, 153, 0.08);
    color: #6ee7b7;
}

.battery-metrics {
    display: grid;
    grid-template-columns: minmax(130px, 0.42fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
}

.battery-metrics-lv {
    grid-template-columns: minmax(180px, 0.30fr) minmax(0, 1fr);
}

.metric-soc {
    min-width: 0;
}

.metric-soc span {
    display: block;
    margin-bottom: 7px;
    color: #94a3b8;
    font-size: 13px;
}

.metric-soc strong {
    display: block;
    font-size: clamp(40px, 5vw, 58px);
    line-height: 1;
    letter-spacing: -0.035em;
}

.metric-values {
    min-width: 0;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 18px;
    min-width: 0;
    padding: 10px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.metric-row:first-child {
    border-top: 0;
    padding-top: 0;
}

.metric-row span {
    min-width: 0;
    color: #94a3b8;
    font-size: 13px;
}

.metric-row strong {
    flex: 0 0 auto;
    color: #ffffff;
    font-size: 16px;
    text-align: right;
    white-space: nowrap;
}

.metric-row.metric-highlight strong {
    font-size: 19px;
}

.history-block {
    margin-top: 24px;
}

.history-block h3 {
    margin: 0 0 12px;
    color: #cdd7e0;
    font-size: 16px;
    font-weight: 600;
}

.history-chart {
    position: relative;
    width: 100%;
    height: 270px;
}

.history-chart-lv {
    height: 290px;
}

@media (max-width: 1000px) {
    .battery-layout {
        grid-template-columns: 1fr;
    }

    .battery-card-lv {
        grid-column: auto;
    }

    .battery-metrics-lv {
        grid-template-columns: minmax(130px, 0.42fr) minmax(0, 1fr);
    }
}

@media (max-width: 620px) {
    .battery-widget {
        padding: 14px;
    }

    .battery-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        margin-bottom: 18px;
    }

    .battery-header h1 {
        font-size: 24px;
    }

    .battery-controls {
        align-items: flex-start;
        flex-direction: column;
    }

    .battery-layout {
        gap: 14px;
    }

    .battery-card {
        padding: 18px;
        border-radius: 20px;
    }

    .battery-card-header {
        margin-bottom: 18px;
    }

    .battery-card-header h2 {
        font-size: 20px;
    }

    .battery-metrics,
    .battery-metrics-lv {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .metric-soc strong {
        font-size: 42px;
    }

    .history-chart,
    .history-chart-lv {
        height: 230px;
    }
}