:root {
  --bg: #0a1626;
  --panel: #101f35;
  --panel-2: #0d1c30;
  --border: #1d3252;
  --text: #e7edf7;
  --dim: #8fa1bd;
  --teal: #2fe7ac;
  --pink: #ff5d8a;
  --blue: #4fa8ff;
  --orange: #ffb355;
  --purple: #c48cf2;
  --cyan: #37d6d6;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 14px;
}

.hidden { display: none !important; }

/* ---------- login ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 280px;
  text-align: center;
}
.login-box input {
  width: 100%;
  margin: 14px 0;
  padding: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}
.login-box button {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--blue);
  color: #06121f;
  font-weight: 600;
  cursor: pointer;
}
.error-text { color: var(--pink); font-size: 12px; min-height: 16px; }

/* ---------- layout ---------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--panel-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 18px 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 18px;
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 8px var(--teal);
}

.sidebar nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  text-align: left;
  background: transparent;
  border: none;
  color: var(--dim);
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.nav-item:hover { background: var(--panel); color: var(--text); }
.nav-item.active { background: var(--panel); color: var(--blue); border-left: 2px solid var(--blue); }

.sidebar-footer { border-top: 1px solid var(--border); padding-top: 12px; }
.engine-row, .online-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--dim); margin-bottom: 8px;
}
.status-ok { color: var(--teal); }
.pulse {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--teal); margin-right: 6px;
}
.logout {
  width: 100%; padding: 8px; background: transparent;
  border: 1px solid var(--border); color: var(--dim);
  border-radius: 8px; cursor: pointer; margin-top: 6px;
}

.content { flex: 1; padding: 22px 26px; overflow-x: hidden; }

.view { display: none; }
.view.active { display: block; }

.view-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.view-header h1 { font-size: 20px; margin: 0; }
.refresh {
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  padding: 7px 14px; border-radius: 8px; cursor: pointer;
}

.dim { color: var(--dim); }
.note { font-size: 12.5px; margin: -6px 0 16px; max-width: 640px; line-height: 1.5; }
.note code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }

/* ---------- stat cards ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-top: 3px solid var(--blue);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.stat-card.accent-blue { border-top-color: var(--blue); }
.stat-card.accent-teal { border-top-color: var(--teal); }
.stat-card.accent-pink { border-top-color: var(--pink); }
.stat-card.accent-orange { border-top-color: var(--orange); }
.stat-card.accent-purple { border-top-color: var(--purple); }
.stat-card.accent-cyan { border-top-color: var(--cyan); }

.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--dim); }
.stat-value { font-size: 24px; font-weight: 700; margin-top: 6px; }
.stat-sub { font-size: 11px; color: var(--dim); margin-top: 4px; }

/* ---------- panels / grid ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .sidebar { width: 74px; }
  .sidebar .nav-item span.label { display: none; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.panel-title { font-size: 13px; color: var(--dim); margin-bottom: 10px; }

.legend { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 10px; font-size: 12px; color: var(--dim); }
.legend span.swatch { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 6px; }

/* ---------- forms / tables ---------- */
.inline-form { display: flex; gap: 10px; flex-wrap: wrap; }
.inline-form input {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 9px 10px; border-radius: 8px; flex: 1; min-width: 160px;
}
.inline-form button {
  background: var(--blue); border: none; color: #06121f; font-weight: 600;
  padding: 9px 16px; border-radius: 8px; cursor: pointer;
}
.new-key { color: var(--teal); font-family: monospace; margin-top: 10px; word-break: break-all; }

.data-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.data-table th {
  text-align: left; color: var(--dim); font-weight: 500;
  padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.data-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); }
.data-table tr:last-child td { border-bottom: none; }
.tag-on { color: var(--teal); }
.tag-off { color: var(--dim); }
.small-btn {
  background: transparent; border: 1px solid var(--border); color: var(--dim);
  padding: 4px 9px; border-radius: 6px; cursor: pointer; font-size: 11px;
}
.small-btn.danger { color: var(--pink); border-color: var(--pink); }