:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #273449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --success: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
  --radius: 12px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

/* ---- Login ---- */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}
.login-card h1 { margin: 0 0 0.25rem; font-size: 1.4rem; }
.login-card p.sub { margin: 0 0 1.5rem; color: var(--muted); font-size: .9rem; }

label { display: block; font-size: .85rem; color: var(--muted); margin: .75rem 0 .25rem; }
input, select, textarea {
  width: 100%;
  padding: .6rem .75rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .95rem;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); border-color: transparent; }

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: .6rem 1rem;
  font-size: .95rem;
  font-weight: 600;
  background: var(--primary);
  color: white;
  transition: background .15s;
}
button:hover { background: var(--primary-hover); }
button.secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
button.block { width: 100%; margin-top: 1.25rem; }

.error { color: var(--danger); font-size: .85rem; margin-top: .75rem; min-height: 1.1em; }
.ok { color: var(--success); font-size: .85rem; margin-top: .75rem; min-height: 1.1em; }

/* ---- App shell ---- */
header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .9rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
header.topbar h1 { font-size: 1.1rem; margin: 0; }
.topbar-right { display: flex; align-items: center; gap: 1rem; }
.status-dot { display: inline-flex; align-items: center; gap: .4rem; font-size: .85rem; color: var(--muted); }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.dot.online { background: var(--success); }
.dot.offline { background: var(--danger); }

main { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

.grid { display: grid; gap: 1rem; }
.cards { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
}
.card h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin: 0 0 .5rem; }
.card .big { font-size: 1.8rem; font-weight: 700; }
.card .sub { color: var(--muted); font-size: .85rem; }

section { margin-top: 1.5rem; }
section > h2.section-title { font-size: 1rem; margin: 0 0 .75rem; }

table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: .8rem; }
tbody tr:hover { background: var(--surface-2); }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .6rem; }
.gallery figure { margin: 0; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.gallery img { width: 100%; height: 110px; object-fit: cover; display: block; cursor: pointer; background: var(--surface-2); }
.gallery figcaption { padding: .35rem .5rem; font-size: .75rem; color: var(--muted); }

.cmd-grid { grid-template-columns: 1fr 1fr; }
@media (max-width: 640px) { .cmd-grid { grid-template-columns: 1fr; } }

.muted { color: var(--muted); }
.row { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

.badge { display: inline-block; padding: .1rem .5rem; border-radius: 999px; font-size: .72rem; background: var(--surface-2); border: 1px solid var(--border); }
.badge.logon { color: var(--success); }
.badge.logoff { color: var(--danger); }
.badge.lock { color: var(--warn); }
.badge.unlock { color: var(--primary); }

/* lightbox */
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.85); display: none; place-items: center; z-index: 50; padding: 2rem; }
.lightbox.show { display: grid; }
.lightbox img { max-width: 95vw; max-height: 90vh; border-radius: 8px; }

.toolbar { display: flex; gap: .5rem; align-items: center; margin-bottom: .75rem; flex-wrap: wrap; }
.toolbar select { width: auto; }