:root {
  --bg: #0d0d0d;
  --surface: #161616;
  --surface-2: #1c1c1c;
  --surface-3: #222222;
  --border: #262626;
  --border-strong: #333333;
  --text: #ffffff;
  --muted: #a3a3a3;
  --muted-2: #737373;
  --brand: #4f46e5;
  --brand-soft: rgba(79, 70, 229, 0.22);
  --success: #22c55e;
  --success-soft: rgba(34, 197, 94, 0.16);
  --danger: #ef4444;
  --danger-soft: rgba(239, 68, 68, 0.14);
  --warning: #eab308;
  --radius-sm: 8px;
  --radius-md: 12px;
  --sidebar-width: 240px;
  --font: "Plus Jakarta Sans", "Geist", Inter, ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }

#login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(800px 400px at 20% -10%, rgba(79,70,229,.18), transparent 60%),
    var(--bg);
}
.login-card {
  width: min(420px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
}
.login-card h1 { margin: 0 0 6px; font-size: 28px; letter-spacing: -0.02em; }
.login-card p { margin: 0 0 24px; color: var(--muted); }
.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 12px; }
.field input {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  outline: none;
}
.field input:focus { border-color: var(--border-strong); }

.btn {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn:hover { background: var(--surface-3); }
.btn-primary { background: var(--brand); border-color: transparent; }
.btn-primary:hover { filter: brightness(1.08); background: var(--brand); }
.btn-danger { background: var(--danger-soft); border-color: transparent; color: #fecaca; }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 7px 10px; font-size: 12px; }

.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
}
.sidebar {
  border-right: 1px solid var(--border);
  background: var(--bg);
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 18px;
}
.brand-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--brand);
  display: grid; place-items: center;
  font-weight: 700; font-size: 13px;
}
.brand strong { display: block; font-size: 14px; }
.brand span { color: var(--muted); font-size: 12px; }
.nav-btn {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--muted);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.nav-btn.active, .nav-btn:hover {
  background: var(--surface-2);
  color: var(--text);
}
.sidebar-foot {
  margin-top: auto;
  padding: 12px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 64px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  gap: 16px;
}
.topbar h2 { margin: 0; font-size: 18px; font-weight: 600; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.content { padding: 28px; overflow: auto; }

.kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}
.card h3 { margin: 0 0 12px; font-size: 14px; font-weight: 600; }
.kpi-label { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.kpi-value { font-size: 30px; font-weight: 700; letter-spacing: -0.03em; }
.kpi-sub { margin-top: 8px; color: var(--muted); font-size: 12px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.bar {
  height: 8px;
  background: var(--surface-3);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 10px;
}
.bar > span {
  display: block;
  height: 100%;
  background: var(--brand);
}
.bar.warn > span { background: var(--warning); }
.bar.danger > span { background: var(--danger); }

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.status-row:last-child { border-bottom: 0; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block; margin-right: 8px;
}
.dot.ok { background: var(--success); }
.dot.bad { background: var(--danger); }

.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  align-items: center;
}
.toolbar input, .toolbar select {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  min-width: 220px;
}

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: middle;
}
th { color: var(--muted); font-weight: 500; }
tr:hover td { background: rgba(255,255,255,0.015); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 11px;
  border: 1px solid var(--border);
}
.badge.ok { background: var(--success-soft); color: #86efac; border-color: transparent; }
.badge.bad { background: var(--danger-soft); color: #fecaca; border-color: transparent; }
.badge.brand { background: var(--brand-soft); color: #c7d2fe; border-color: transparent; }

.muted { color: var(--muted); }
.error {
  color: #fecaca;
  background: var(--danger-soft);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 12px;
  font-size: 13px;
}
.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  z-index: 50;
}
.modal-back {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  display: grid; place-items: center;
  z-index: 40;
  padding: 20px;
}
.modal {
  width: min(480px, 100%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}
.modal h3 { margin: 0 0 14px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

@media (max-width: 1100px) {
  .kpis, .grid-2, .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 800px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .kpis, .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .content, .topbar { padding-left: 16px; padding-right: 16px; }
}