:root {
    --bg: #f5f6f8;
    --surface: #ffffff;
    --border: #dfe2e7;
    --text: #1d2330;
    --muted: #637083;
    --accent: #2457c5;
    --ok: #1d8a4e;
    --ok-bg: #e5f5ec;
    --warn: #b26100;
    --warn-bg: #fff2df;
    --bad: #c0352b;
    --bad-bg: #fdeceb;
    --offline: #9aa3b0;
    --row-hover: #f0f4fc;
    --shadow: 0 1px 2px rgba(20, 30, 50, 0.06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #12151b;
        --surface: #1b2029;
        --border: #2c3340;
        --text: #e4e8ef;
        --muted: #98a2b3;
        --accent: #7aa2ff;
        --ok: #4cc286;
        --ok-bg: #173325;
        --warn: #f0a443;
        --warn-bg: #3a2a12;
        --bad: #f07167;
        --bad-bg: #3d1d1b;
        --offline: #5d6676;
        --row-hover: #222a37;
        --shadow: none;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

a:hover {
    text-decoration: underline;
}

header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.bar {
    max-width: 1280px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.bar h1 {
    font-size: 18px;
    margin: 0;
    font-weight: 650;
}

.bar .spacer, .commands .spacer {
    flex: 1;
}

main {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px;
}

h2 {
    font-size: 16px;
    margin: 24px 0 8px;
}

.muted {
    color: var(--muted);
}

.small {
    font-size: 13px;
}

/* ---- insigne ---- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 2px 10px;
    border-radius: 999px;
    font-size: 13px;
    white-space: nowrap;
    background: var(--bg);
    border: 1px solid var(--border);
}

.badge.ok {
    color: var(--ok);
    background: var(--ok-bg);
    border-color: transparent;
}

.badge.warn {
    color: var(--warn);
    background: var(--warn-bg);
    border-color: transparent;
}

.badge.bad {
    color: var(--bad);
    background: var(--bad-bg);
    border-color: transparent;
}

.dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    display: inline-block;
    background: var(--offline);
    flex: none;
}

.dot.on {
    background: var(--ok);
}

/* ---- tabele ---- */

.table-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

th {
    font-weight: 600;
    color: var(--muted);
    font-size: 13px;
}

tr:last-child td {
    border-bottom: none;
}

td.num, th.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

td.wrap {
    white-space: normal;
    word-break: break-word;
    min-width: 220px;
}

td.mono, .mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px;
}

tbody tr.link {
    cursor: pointer;
}

tbody tr.link:hover {
    background: var(--row-hover);
}

td.empty {
    color: var(--muted);
    text-align: center;
    padding: 20px;
}

.count-bad {
    color: var(--bad);
    font-weight: 600;
}

/* ---- formulare ---- */

input[type="text"], input[type="search"], input[type="number"] {
    font: inherit;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
    color: var(--text);
}

input[type="number"] {
    width: 110px;
}

button {
    font: inherit;
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #fff;
    cursor: pointer;
}

button.secondary {
    background: transparent;
    color: var(--accent);
}

button.danger {
    background: var(--bad);
    border-color: var(--bad);
}

/* prima apăsare a unui buton de ștergere: așteaptă confirmarea */
button.danger.armed {
    background: transparent;
    color: var(--bad);
}

button.small {
    padding: 2px 10px;
    font-size: 13px;
}

button:disabled {
    opacity: 0.5;
    cursor: default;
}

select {
    font: inherit;
    padding: 5px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
    color: var(--text);
}

/* ---- pagina device-ului ---- */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 12px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    box-shadow: var(--shadow);
}

.card .label {
    color: var(--muted);
    font-size: 13px;
}

.card .value {
    font-size: 22px;
    font-weight: 650;
    margin: 2px 0;
    font-variant-numeric: tabular-nums;
}

.card .note {
    font-size: 13px;
    color: var(--muted);
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
    box-shadow: var(--shadow);
}

.chart-box {
    position: relative;
    height: 300px;
}

.commands {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    align-items: center;
}

.commands .group {
    display: flex;
    gap: 6px;
    align-items: center;
}

.feedback {
    margin-top: 10px;
    min-height: 1.4em;
    font-size: 14px;
}

.feedback.bad {
    color: var(--bad);
}

.feedback.ok {
    color: var(--ok);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 16px;
}

@media (max-width: 900px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

details summary {
    cursor: pointer;
    color: var(--muted);
    margin: 24px 0 8px;
}

/* în carduri, textul insignelor se poate rupe pe mai multe rânduri */
.card .badge {
    white-space: normal;
    border-radius: 10px;
}