:root {
    --clr-bg: oklch(0.15 0.012 260);
    --clr-bg-radial: oklch(0.22 0.03 255);
    --clr-text: oklch(0.95 0.008 260);
    --clr-muted: oklch(0.6 0.02 260);
    --clr-muted-2: oklch(0.58 0.02 260);
    --clr-muted-3: oklch(0.66 0.02 260);
    --clr-muted-4: oklch(0.55 0.02 260);
    --clr-header-value: oklch(0.8 0.02 260);
    --clr-yield-value: oklch(0.9 0.01 260);

    --clr-card-bg: oklch(0.215 0.015 260);
    --clr-card-border: oklch(0.3 0.012 260);
    --clr-hero-bg-1: oklch(0.235 0.018 258);
    --clr-hero-bg-2: oklch(0.2 0.015 262);
    --clr-hero-border: oklch(0.32 0.014 260);
    --clr-track: oklch(0.3 0.012 260);
    --clr-ring-bg: oklch(0.19 0.014 262);

    --clr-link: oklch(0.76 0.12 215);
    --clr-link-hover: oklch(0.82 0.12 215);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    background: var(--clr-bg);
}

body {
    font-family: "Space Grotesk", system-ui, sans-serif;
    color: var(--clr-text);
}

a {
    color: var(--clr-link);
    text-decoration: none;
}

a:hover {
    color: var(--clr-link-hover);
}

.page {
    min-height: 100vh;
    background: radial-gradient(120% 80% at 50% -10%, var(--clr-bg-radial) 0%, var(--clr-bg) 60%);
    padding: 20px 16px 40px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Header */

.header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 4px 4px 2px;
}

.brand {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.brand__name {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1;
}

.brand__sub {
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--clr-muted-4);
}

.header__right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 3px;
    text-align: right;
}

.header__label {
    font-family: "IBM Plex Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--clr-muted-4);
}

.header__value {
    font-family: "IBM Plex Mono", monospace;
    font-size: 14px;
    font-weight: 500;
    color: var(--clr-header-value);
}

/* Grid + cards */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 14px;
}

.card {
    background: var(--clr-card-bg);
    border: 1px solid var(--clr-card-border);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.card--battery {
    grid-column: 1 / -1;
    background: linear-gradient(160deg, var(--clr-hero-bg-1) 0%, var(--clr-hero-bg-2) 100%);
    border-color: var(--clr-hero-border);
    border-radius: 24px;
    padding: 22px;
    gap: 0;
}

.card__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.card--battery .card__head {
    margin-bottom: 20px;
}

.card__title {
    font-family: "IBM Plex Mono", monospace;
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--clr-muted-3);
}

/* Status badge (battery state) */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    color: var(--state-color, var(--clr-text));
    background: color-mix(in oklab, var(--state-color, var(--clr-text)) 16%, transparent);
    border: 1px solid color-mix(in oklab, var(--state-color, var(--clr-text)) 40%, transparent);
}

.badge__dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--state-color, var(--clr-text));
}

/* Solar online/offline dot */

.dot {
    width: 9px;
    height: 9px;
    border-radius: 2px;
    background: var(--dot-color, var(--clr-track));
}

/* Battery ring */

.battery__body {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 28px;
}

.ring {
    position: relative;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--ring-bg, conic-gradient(var(--clr-track) 0%, var(--clr-track) 100%));
    flex: 0 0 auto;
    margin-right: 50px;
}

.ring__inner {
    position: absolute;
    inset: 12px;
    border-radius: 50%;
    background: var(--clr-ring-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
}

.ring__value {
    font-size: 36px;
    font-weight: 700;
    line-height: 1;
    font-variant-numeric: tabular-nums;
    color: var(--value-color, var(--clr-text));
    margin-left: 10px;
}

.ring__label {
    font-family: "IBM Plex Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--clr-muted-2);
}

.unit {
    font-size: 0.45em;
    font-weight: 500;
    color: var(--clr-muted);
}

/* Battery stats (current / voltage / starter) */

.battery__stats {
    flex: 1 1 200px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 14px;
    min-width: 200px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.stat--right {
    text-align: right;
}

.stat__label {
    font-family: "IBM Plex Mono", monospace;
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--clr-muted-2);
}

.stat__value {
    font-size: 36px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    color: var(--value-color, var(--clr-text));
}

/* Solar metric */

.metric {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.metric__label {
    font-family: "IBM Plex Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--clr-muted-2);
}

.metric__value {
    font-size: 36px;
    font-weight: 700;
    line-height: 0.95;
    font-variant-numeric: tabular-nums;
    color: var(--value-color, var(--clr-text));
}

.footer-row {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding-top: 2px;
    border-top: 1px solid var(--clr-track);
}

.footer-row__label {
    font-family: "IBM Plex Mono", monospace;
    font-size: 10px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--clr-muted-2);
}

.footer-row__value {
    margin-left: auto;
    font-size: 17px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--clr-yield-value);
}

/* Climate card */

.climate {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
}

.climate__item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.climate__item--right {
    text-align: right;
}

.climate__value {
    font-size: 36px;
    font-weight: 700;
    line-height: 0.95;
    font-variant-numeric: tabular-nums;
    color: var(--value-color, var(--clr-text));
}

.climate__value--secondary {
    font-weight: 600;
}