:root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel-2: #1e222b;
    --text: #e8ecf1;
    --muted: #8b95a7;
    --border: #2a303c;
    --green: #2ecc71;
    --red: #ff5c5c;
    --yellow: #f1c40f;
    --accent: #4c8dff;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.sub { color: var(--muted); font-size: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 20px;
    background: #12151b;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar-right { display: flex; align-items: center; gap: 12px; }
.inline { display: inline; margin: 0; }
.link-button {
    background: none;
    border: 0;
    color: var(--accent);
    cursor: pointer;
    padding: 0;
    font: inherit;
}
.link-button:hover { text-decoration: underline; }

.wrap { max-width: 1400px; margin: 0 auto; padding: 20px; }

.cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}
.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px;
}
.card-label {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.card-value { font-size: 26px; font-weight: 650; margin-top: 4px; }
.card-online .card-value { color: var(--green); }
.card-offline .card-value { color: var(--red); }

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    margin-bottom: 16px;
}
.panel h2 { margin: 0 0 12px; font-size: 16px; }
.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}
.panel-head h2 { margin: 0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
    text-align: left;
    padding: 9px 10px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
th {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .03em;
}
tbody tr:hover { background: var(--panel-2); }
.empty { color: var(--muted); text-align: center; padding: 24px; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}
.badge-online { background: rgba(46, 204, 113, .15); color: var(--green); }
.badge-offline { background: rgba(255, 92, 92, .15); color: var(--red); }

select, input, button { font: inherit; }
select {
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 9px;
}

.hours {
    display: grid;
    grid-template-columns: repeat(24, minmax(0, 1fr));
    gap: 3px;
}
.hour {
    height: 42px;
    border-radius: 4px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    font-size: 10px;
    color: #0b0d10;
    padding-bottom: 2px;
}
.hour-ok { background: var(--green); }
.hour-warn { background: var(--yellow); }
.hour-bad { background: var(--red); }
.hour-empty { background: var(--panel-2); color: var(--muted); border: 1px solid var(--border); }

.login-page { display: grid; place-items: center; min-height: 100vh; padding: 20px; }
.login-box {
    width: 100%;
    max-width: 380px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
}
.login-box h1 { margin: 0 0 4px; font-size: 20px; }
.login-box p { margin: 0 0 18px; }
label { display: block; margin-bottom: 12px; color: var(--muted); font-size: 13px; }
label input {
    display: block;
    width: 100%;
    margin-top: 6px;
    background: var(--panel-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 11px;
}
button[type="submit"] {
    width: 100%;
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: 8px;
    padding: 10px 12px;
    cursor: pointer;
    font-weight: 600;
}
button[type="submit"]:hover { filter: brightness(1.08); }
.alert {
    background: rgba(255, 92, 92, .12);
    color: var(--red);
    border: 1px solid rgba(255, 92, 92, .35);
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 14px;
}

@media (max-width: 900px) {
    .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
    .cards { grid-template-columns: 1fr; }
    .wrap { padding: 12px; }
}