:root {
  --bg: #0f1115;
  --bg-elev: #161a21;
  --bg-hover: #1c222c;
  --border: #2a3140;
  --text: #e6eaf0;
  --muted: #8b95a8;
  --accent: #3d8bfd;
  --accent-dim: #2a5fad;
  --ok: #3ecf8e;
  --err: #e35d6a;
  --warn: #e6b84d;
  --mono: "JetBrains Mono", "Cascadia Code", "Consolas", ui-monospace, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
  min-height: 100%;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand {
  font-weight: 650;
  letter-spacing: 0.02em;
  padding: 4px 10px 18px;
  color: var(--text);
  font-size: 15px;
}

.brand span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  margin-top: 2px;
}

.nav a {
  display: block;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
}

.nav a:hover { background: var(--bg-hover); color: var(--text); }
.nav a.active {
  background: var(--bg-hover);
  color: var(--text);
  border-left: 2px solid var(--accent);
  padding-left: 8px;
}

.sidebar-foot {
  margin-top: auto;
  padding: 12px 10px 4px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

.main {
  padding: 24px 28px 48px;
  max-width: 1200px;
}

h1 {
  margin: 0 0 18px;
  font-size: 20px;
  font-weight: 600;
}

h2 {
  margin: 28px 0 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.flash {
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}
.flash.ok { background: rgba(62, 207, 142, 0.1); border-color: rgba(62, 207, 142, 0.35); color: var(--ok); }
.flash.err { background: rgba(227, 93, 106, 0.1); border-color: rgba(227, 93, 106, 0.35); color: var(--err); }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
}

.card .label {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
}

.card .value {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
}

.card .sub {
  color: var(--muted);
  font-size: 11px;
  margin-top: 4px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 16px;
}

.toolbar form {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

input[type="text"],
input[type="password"],
input[type="number"],
select,
textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
  min-width: 140px;
}

input:focus, select:focus, textarea:focus {
  outline: 1px solid var(--accent-dim);
  border-color: var(--accent);
}

button, .btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font: inherit;
  cursor: pointer;
  display: inline-block;
}

button:hover, .btn:hover { background: var(--accent-dim); text-decoration: none; }

button.danger, .btn.danger {
  background: #8b2e38;
}
button.danger:hover, .btn.danger:hover { background: #a63a46; }

button.ghost, .btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
}
button.ghost:hover { background: var(--bg-hover); color: var(--text); }

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-elev);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: rgba(0,0,0,0.2);
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.ok { color: var(--ok); }
.err { color: var(--err); }

.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 16px;
}

.panel form {
  display: grid;
  gap: 10px;
  max-width: 420px;
}

.panel label {
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}

.panel .row-check {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 13px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
  .grid-2 { grid-template-columns: 1fr; }
}

/* Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-box {
  width: 100%;
  max-width: 360px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 24px;
}

.login-box h1 {
  margin-bottom: 6px;
}

.login-box .hint {
  color: var(--muted);
  margin-bottom: 20px;
  font-size: 13px;
}

.login-box form {
  display: grid;
  gap: 12px;
}

.login-box label {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.login-box button { width: 100%; margin-top: 4px; }

.empty {
  padding: 24px;
  text-align: center;
  color: var(--muted);
}