:root {
  --bg: #0f1419;
  --panel: #1a2332;
  --panel-2: #243044;
  --text: #e7eef8;
  --muted: #9aacc2;
  --accent: #5b9fd4;
  --accent-2: #3d7eaf;
  --ok: #3dba7a;
  --bad: #e25c5c;
  --danger: #c94444;
  --border: #2e3d52;
  --radius: 12px;
  --font: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1c2a40 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.45;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
}
.topbar nav { display: flex; gap: 0.75rem; flex: 1; flex-wrap: wrap; }
.topbar nav a {
  color: var(--muted);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
}
.topbar nav a.active, .topbar nav a:hover {
  color: var(--text);
  background: var(--panel-2);
  text-decoration: none;
}
.logout { display: flex; align-items: center; gap: 0.75rem; margin: 0; }
.who { color: var(--muted); font-size: 0.9rem; }
button.link, .link {
  background: none; border: none; color: var(--accent); cursor: pointer;
  font: inherit; padding: 0;
}
button.link.danger, .link.danger { color: var(--bad); }

main { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
h1 { font-size: 1.6rem; font-weight: 650; margin: 0 0 1rem; }
h2 { font-size: 1.05rem; margin: 0 0 0.75rem; font-weight: 600; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}
.card {
  background: linear-gradient(180deg, var(--panel) 0%, #162032 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.18);
}
.card.narrow { max-width: 420px; margin-inline: auto; }

.stack { display: flex; flex-direction: column; gap: 0.75rem; }
.row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }

label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.9rem; color: var(--muted); }
label.checkbox { flex-direction: row; align-items: center; gap: 0.5rem; color: var(--text); }
input, textarea, select, button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0d121a;
  color: var(--text);
  padding: 0.55rem 0.7rem;
}
textarea { resize: vertical; min-height: 80px; }
input:focus, textarea:focus { outline: 2px solid rgba(91,159,212,0.35); border-color: var(--accent); }
button {
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent-2) 100%);
  border: none;
  color: white;
  font-weight: 600;
  cursor: pointer;
  padding: 0.6rem 1rem;
}
button:hover { filter: brightness(1.05); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.danger {
  background: linear-gradient(180deg, #d95b5b 0%, var(--danger) 100%);
}

.status { display: grid; grid-template-columns: 120px 1fr; gap: 0.35rem 0.75rem; margin: 0; }
.status dt { color: var(--muted); }
.status dd { margin: 0; }
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.muted, .hint { color: var(--muted); font-size: 0.88rem; }
.error { color: var(--bad); background: rgba(226,92,92,0.08); padding: 0.5rem 0.7rem; border-radius: 8px; }
.flash {
  background: rgba(91,159,212,0.12);
  border: 1px solid rgba(91,159,212,0.35);
  padding: 0.6rem 0.8rem;
  border-radius: 8px;
}
.flash.error { background: rgba(226,92,92,0.12); border-color: rgba(226,92,92,0.35); color: var(--bad); }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.55rem 0.4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
tr.empty td { color: var(--muted); text-align: center; }
code, .code, pre.code {
  font-family: var(--mono);
  font-size: 0.82rem;
  white-space: pre-wrap;
  word-break: break-word;
}
pre.code {
  background: #0d121a;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  max-height: 320px;
  overflow: auto;
}
fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem; }
legend { color: var(--muted); padding: 0 0.35rem; }

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; }
  main { padding: 1rem; }
  .status { grid-template-columns: 1fr; }
}