:root {
  --bg: #0c0f14;
  --bg-elev: #131821;
  --bg-soft: #1a2130;
  --line: #2a3446;
  --text: #e8eef6;
  --muted: #8d9bb0;
  --accent: #d4a24c;
  --accent-2: #4f8fbf;
  --ok: #3cba7a;
  --danger: #e05d5d;
  --warn: #d4a24c;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  --radius: 14px;
  --sidebar: 240px;
  --font: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1b2433 0%, var(--bg) 55%);
  color: var(--text);
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3 { font-weight: 650; letter-spacing: -0.02em; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: min(420px, 100%);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
}
.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 99px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(212, 162, 76, 0.15);
}
.login-card h1 { margin: 0 0 8px; font-size: 28px; }
.login-card p { margin: 0 0 22px; color: var(--muted); }
label { display: block; margin: 0 0 8px; color: var(--muted); font-size: 13px; }
input, select, textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 12px;
  outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent-2); }
textarea { min-height: 88px; resize: vertical; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  background: var(--accent);
  color: #1a1408;
  font-weight: 650;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn.secondary { background: var(--bg-soft); color: var(--text); border: 1px solid var(--line); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.ghost { background: transparent; color: var(--muted); }
.btn.small { padding: 7px 10px; font-size: 13px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; }
.full { width: 100%; }
.error { color: var(--danger); min-height: 1.2em; margin: 10px 0 0; font-size: 14px; }
.ok { color: var(--ok); }

.app {
  display: grid;
  grid-template-columns: var(--sidebar) 1fr;
  min-height: 100vh;
}
.sidebar {
  background: #10151d;
  border-right: 1px solid var(--line);
  padding: 22px 14px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}
.sidebar h1 {
  margin: 0 0 18px;
  font-size: 16px;
  padding: 0 8px;
}
.nav a {
  display: block;
  color: var(--muted);
  padding: 9px 10px;
  border-radius: 10px;
  text-decoration: none;
}
.nav a:hover, .nav a.active {
  background: var(--bg-soft);
  color: var(--text);
  text-decoration: none;
}
.main { padding: 28px; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}
.topbar h2 { margin: 0; font-size: 28px; }
.topbar p { margin: 6px 0 0; color: var(--muted); }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}
.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.card .k { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; }
.card .v { font-size: 26px; margin-top: 8px; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; background: var(--bg-elev); }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-size: 12px; font-weight: 650; letter-spacing: 0.04em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
code, .mono { font-family: var(--mono); font-size: 12px; }
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.muted { color: var(--muted); }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 12px;
}
.badge.on { background: rgba(60, 186, 122, 0.15); color: var(--ok); }
.badge.off { background: rgba(224, 93, 93, 0.12); color: var(--danger); }
.stack { display: flex; flex-direction: column; gap: 14px; }
.hidden { display: none !important; }
.flash { padding: 10px 12px; border-radius: 10px; background: var(--bg-soft); border: 1px solid var(--line); }
@media (max-width: 860px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { height: auto; position: relative; }
}