:root {
  --bg: #0f1420;
  --panel: #171e2e;
  --panel-2: #1e2738;
  --border: #2a3448;
  --text: #e7ecf5;
  --muted: #8b97ad;
  --accent: #4f8cff;
  --accent-2: #3a6fd8;
  --green: #35c48b;
  --red: #ef5a6f;
  --amber: #f0b429;
  --radius: 12px;
  --shadow: 0 8px 30px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--red); margin-top: 8px; font-size: 13px; }
a { color: var(--accent); }

button {
  font: inherit; cursor: pointer; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; padding: 9px 14px; font-weight: 600;
}
button:hover { background: var(--accent-2); }
button.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
button.ghost:hover { color: var(--text); background: var(--panel-2); }
button.danger { background: var(--red); }
button.small { padding: 5px 10px; font-size: 12px; }

input, select {
  font: inherit; background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 9px 11px; width: 100%;
}
label { display: block; margin: 10px 0; font-size: 13px; color: var(--muted); }
label input { margin-top: 5px; }

/* Login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; width: 360px; max-width: 100%; box-shadow: var(--shadow);
}
.login-card h1 { font-size: 20px; margin: 14px 0 4px; }
.login-card button { width: 100%; margin-top: 14px; }

.brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 18px; letter-spacing: .5px; }
.brand .logo {
  display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px;
  background: var(--accent); color: #fff; font-weight: 800;
}
#home-link { cursor: pointer; }

/* Topbar */
.topbar {
  display: flex; align-items: center; gap: 14px; padding: 12px 20px;
  background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5;
}
.spacer { flex: 1; }
main { padding: 22px; max-width: 1200px; margin: 0 auto; }

/* Cards & layout */
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.between { justify-content: space-between; }
.page-head { margin-bottom: 18px; }
.page-head h2 { margin: 0 0 4px; font-size: 22px; }

.grid { display: grid; gap: 14px; }
.cards { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.stat-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin: 16px 0; }

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.member-card { cursor: pointer; transition: border-color .15s, transform .05s; }
.member-card:hover { border-color: var(--accent); }
.member-card:active { transform: translateY(1px); }

.stat { text-align: left; }
.stat .value { font-size: 26px; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }

.badge { font-size: 11px; padding: 3px 8px; border-radius: 999px; font-weight: 700; }
.badge.online { background: rgba(53,196,139,.15); color: var(--green); }
.badge.offline { background: rgba(139,151,173,.15); color: var(--muted); }
.badge.off { background: rgba(239,90,111,.15); color: var(--red); }
.badge.brk { background: rgba(240,180,41,.16); color: var(--amber); }

.avatar {
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  background: var(--panel-2); color: var(--accent); font-weight: 700; flex: none;
}

/* Activity timeline */
.bar-track { background: var(--panel-2); border-radius: 6px; height: 10px; overflow: hidden; flex: 1; }
.bar-fill { height: 100%; background: var(--accent); }
.bar-fill.green { background: var(--green); }
.bar-fill.amber { background: var(--amber); }
.bar-fill.red { background: var(--red); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; }
td.num { font-variant-numeric: tabular-nums; }

/* Screenshot grid */
.shots { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.shot { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; cursor: pointer; }
.shot img { width: 100%; display: block; aspect-ratio: 16/10; object-fit: cover; background: var(--panel-2); }
.shot .meta { padding: 8px 10px; font-size: 12px; color: var(--muted); }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: grid; place-items: center; z-index: 20; padding: 20px; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; width: 400px; max-width: 100%; box-shadow: var(--shadow); }
.modal h3 { margin: 0 0 12px; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,.85); display: grid; place-items: center; z-index: 30; padding: 24px; }
.lightbox-inner { max-width: 95vw; max-height: 92vh; }
.lightbox-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; color: var(--muted); }
.lightbox img { max-width: 95vw; max-height: 82vh; border-radius: 8px; border: 1px solid var(--border); }

.tabs { display: flex; gap: 6px; margin: 8px 0 16px; border-bottom: 1px solid var(--border); }
.tab { padding: 9px 14px; cursor: pointer; color: var(--muted); border-bottom: 2px solid transparent; font-weight: 600; }
.tab.active { color: var(--text); border-bottom-color: var(--accent); }

.empty { text-align: center; color: var(--muted); padding: 40px; }
.pill-link { color: var(--accent); cursor: pointer; }

/* Friendly empty states */
.empty-state {
  background: var(--panel); border: 1px dashed var(--border); border-radius: var(--radius);
  padding: 44px 24px; text-align: center; box-shadow: var(--shadow);
}
.empty-illus { color: var(--accent); opacity: .85; margin-bottom: 10px; display: inline-flex; }
.empty-state h3 { margin: 6px 0 4px; font-size: 18px; }
.empty-state p { max-width: 440px; margin: 0 auto 6px; }
.card-hint { margin-top: 10px; font-size: 12px; font-style: italic; }

/* Install modal */
.btn-link {
  display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: 11px 16px; border-radius: 8px; font-weight: 700; margin: 2px 0 6px;
}
.btn-link:hover { background: var(--accent-2); }
.steps { margin: 10px 0 4px; padding-left: 18px; color: var(--muted); line-height: 1.5; }
.steps li { margin-bottom: 8px; }
.steps code { background: var(--panel-2); padding: 1px 6px; border-radius: 5px; color: var(--text); }
#install-btn { font-weight: 600; }

.ok { color: var(--green); font-weight: 700; }
.warn { color: var(--amber); font-weight: 700; }
.bad { color: var(--red); font-weight: 700; }

select { font: inherit; background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: 6px 9px; }

@media print {
  .topbar, .page-head .row:last-child, #print { display: none !important; }
  body { background: #fff; color: #000; }
  .card { box-shadow: none; border-color: #ccc; }
}