/* Design převzatý z T4 System dashboardů — tmavé rozhraní, IBM Plex fonty. */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root {
    --bg:        #111318;
    --surface:   #1c2027;
    --surface2:  #242931;
    --surface3:  #2a3040;
    --border:    #2e3541;
    --text:      #e8edf3;
    --text2:     #a8b3c0;
    --muted:     #6b7785;

    --ok:        #4ac76b;
    --ok-bg:     rgba(74,199,107,0.12);
    --ok-border: rgba(74,199,107,0.25);

    --warn:      #e0a030;
    --warn-bg:   rgba(224,160,48,0.12);
    --warn-border: rgba(224,160,48,0.25);

    --fail:      #f0524f;
    --fail-bg:   rgba(240,82,79,0.12);
    --fail-border: rgba(240,82,79,0.25);

    --stale:        #f0524f;
    --stale-bg:     rgba(240,82,79,0.10);
    --stale-border: rgba(240,82,79,0.30);

    /* barvy zařízení, stejné jako sync bary na Simple dashboardu */
    --t4:      #5b9cf6;  /* T4-2 */
    --t4-dim:  rgba(91,156,246,0.15);
    --pi5:     #b57bf7;  /* Pi5 */
    --pi5-dim: rgba(181,123,247,0.15);
    --t41:     #4ac76b;  /* T4-1 */
    --t41-dim: rgba(74,199,107,0.15);

    /* alias na zbytek webu (formuláře, tlačítka) */
    --accent: var(--t4);
    --card: var(--surface);
    --danger: var(--fail);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'IBM Plex Sans', system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

/* ── HLAVIČKA / MENU ── */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.9rem 1.2rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.brand {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--text);
}
nav a {
    margin-left: 1rem;
    text-decoration: none;
    color: var(--text2);
    font-size: 0.92rem;
}
nav a:hover { color: var(--t4); }

.container {
    max-width: 960px;
    margin: 2rem auto;
    padding: 0 1.2rem;
}

h1 {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--text);
}

.page-header-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.page-header-row h1 { margin: 0; }
.clock {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--t4);
    letter-spacing: 0.03em;
}

p { color: var(--text2); }

a { color: var(--t4); }

/* ── FORMULÁŘE ── */
.form {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    max-width: 420px;
    margin: 1.2rem 0;
}
.form label {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.92rem;
    color: var(--text2);
}
.form input, .form textarea {
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface2);
    color: var(--text);
    font: inherit;
}
.form input:focus, .form textarea:focus {
    outline: none;
    border-color: var(--t4);
}
button {
    align-self: flex-start;
    padding: 0.55rem 1.1rem;
    border: none;
    border-radius: 8px;
    background: var(--t4);
    color: #0c1116;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}
button:hover { opacity: 0.9; }

.error {
    padding: 0.6rem 0.8rem;
    background: var(--fail-bg);
    border: 1px solid var(--fail-border);
    border-radius: 8px;
    color: var(--fail);
}

/* ── POZNÁMKY ── */
.notes { list-style: none; padding: 0; }
.notes li {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.9rem 1rem;
    margin-bottom: 0.7rem;
}
.notes p { margin: 0.4rem 0; color: var(--text2); }

.inline { display: inline; margin: 0; }
.linkbtn {
    background: none;
    color: var(--fail);
    padding: 0;
    font-size: 0.85rem;
    text-decoration: underline;
    font-weight: 400;
}

/* ── STAV ZAŘÍZENÍ ── */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}
.device-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-top: 3px solid var(--accent-color, var(--t4));
    border-radius: 10px;
    padding: 1rem;
}
.device-card.dev-t4-2 { --accent-color: var(--t4); }
.device-card.dev-pi5  { --accent-color: var(--pi5); }
.device-card.dev-t4-1 { --accent-color: var(--t41); }

.device-card.stale { border-color: var(--stale-border); background: var(--stale-bg); }
.device-card.stale.dev-t4-2,
.device-card.stale.dev-pi5,
.device-card.stale.dev-t4-1 { border-top-color: var(--stale); }

.device-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.4rem;
}
.device-card-header strong {
    font-family: 'IBM Plex Mono', monospace;
    letter-spacing: 0.04em;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 2px 9px;
    border-radius: 999px;
}
.pill.ok   { background: var(--ok-bg);   color: var(--ok);   border: 1px solid var(--ok-border); }
.pill.down { background: var(--fail-bg); color: var(--fail); border: 1px solid var(--fail-border); }
.pill.unknown { background: var(--surface2); color: var(--muted); border: 1px solid var(--border); }
.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; flex-shrink: 0; }
.dot.ok   { background: var(--ok); }
.dot.down { background: var(--fail); }
.dot.unknown { background: var(--muted); }

.kv {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.7rem;
    margin: 0.6rem 0;
}
.kv-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.3rem 0.8rem;
    margin: 0.6rem 0;
}
.kv-columns > div {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

/* metry disk/ram/teplota */
.meter-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
}
.meter-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.74rem;
    color: var(--text2);
    width: 58px;
    flex-shrink: 0;
    white-space: nowrap;
}
.bar-bg {
    flex: 1;
    height: 6px;
    background: var(--surface2);
    border-radius: 4px;
    overflow: hidden;
}
.bar-fill { display: block; height: 100%; border-radius: 4px; background: var(--ok); }
.bar-fill.warn { background: var(--warn); }
.bar-fill.fail { background: var(--fail); }
.meter-val {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.8rem;
    font-weight: 600;
    width: 42px;
    text-align: right;
    flex-shrink: 0;
    color: var(--text2);
}

.notice {
    background: var(--warn-bg);
    border: 1px solid var(--warn-border);
    border-radius: 8px;
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
    color: var(--warn);
}
.muted { color: var(--muted); }
.muted.small { font-size: 0.78rem; margin-top: 0.6rem; }

.footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--muted);
    font-size: 0.85rem;
}