:root {
    --bg: #0b1220;
    --bg-2: #0e1726;
    --card: #131f33;
    --card-2: #17253c;
    --border: #24344f;
    --text: #e6edf6;
    --muted: #8ea3bf;
    --brand: #4f9cf9;
    --ok: #35c46a;
    --warn: #f5b942;
    --crit: #f0554e;
    --shadow: 0 4px 18px rgba(0,0,0,.35);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
h1 { font-size: 1.45rem; margin: 0 0 .6rem; }
h2 { font-size: 1.1rem; margin: 1.2rem 0 .5rem; }
.muted { color: var(--muted); }

.app { min-height: 100vh; }
.content { padding: 1rem; max-width: 1100px; margin: 0 auto; }

/* Topbar */
.topbar {
    position: sticky; top: 0; z-index: 10;
    display: flex; align-items: center; gap: 1rem;
    padding: .6rem 1rem;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; letter-spacing: .3px; }
.brand span { color: var(--brand); }
.nav { display: flex; gap: .25rem; flex: 1; flex-wrap: wrap; }
.nav-link {
    color: var(--muted); padding: .35rem .7rem; border-radius: 8px; font-weight: 500;
}
.nav-link:hover { background: var(--card); color: var(--text); }
.nav-link.active { background: var(--card-2); color: var(--text); }
.logout { display: flex; align-items: center; gap: .5rem; }
.user { color: var(--muted); font-size: .85rem; }
.btn-link { background: none; border: none; color: var(--brand); cursor: pointer; font: inherit; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    padding: .5rem .9rem; border-radius: 9px; border: 1px solid var(--border);
    background: var(--card); color: var(--text); cursor: pointer; font: inherit; font-weight: 600;
}
.btn:hover { background: var(--card-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #05121f; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { background: var(--crit); border-color: var(--crit); color: #1a0605; }
.btn-sm { padding: .3rem .6rem; font-size: .85rem; }

/* Cards */
.card {
    background: var(--card); border: 1px solid var(--border); border-radius: 12px;
    padding: 1rem; box-shadow: var(--shadow);
}
.grid { display: grid; gap: .8rem; }
.grid-tiles { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

/* Status tiles */
.tile { display: flex; flex-direction: column; gap: .3rem; }
.tile .label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .4px; }
.tile .value { font-size: 1.3rem; font-weight: 700; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.crit { background: var(--crit); }
.dot.unknown { background: var(--muted); }
.pill { padding: .12rem .5rem; border-radius: 999px; font-size: .75rem; font-weight: 700; }
.pill.ok { background: rgba(53,196,106,.15); color: var(--ok); }
.pill.warn { background: rgba(245,185,66,.15); color: var(--warn); }
.pill.crit { background: rgba(240,85,78,.15); color: var(--crit); }
.pill.unknown { background: rgba(142,163,191,.15); color: var(--muted); }

/* Tables */
.tbl-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; background: var(--bg-2); }
tbody tr:hover { background: var(--card-2); }

/* Forms */
label { display: block; color: var(--muted); font-size: .85rem; margin: .6rem 0 .2rem; }
input, select {
    width: 100%; padding: .5rem .6rem; border-radius: 9px;
    border: 1px solid var(--border); background: var(--bg-2); color: var(--text); font: inherit;
}
input:focus, select:focus { outline: 2px solid var(--brand); outline-offset: -1px; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card {
    width: 100%; max-width: 360px; background: var(--card);
    border: 1px solid var(--border); border-radius: 16px; padding: 1.6rem; box-shadow: var(--shadow);
}
.login-brand { font-size: 1.5rem; font-weight: 800; text-align: center; }
.login-sub { color: var(--muted); text-align: center; margin: .2rem 0 1rem; font-size: .9rem; }
.login-card .btn { width: 100%; margin-top: 1rem; }
.login-error { background: rgba(240,85,78,.15); color: var(--crit); padding: .5rem .7rem; border-radius: 9px; font-size: .85rem; }

.row { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }
.spacer { flex: 1; }
.mono { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: .85rem; }