:root {
  --bg: #0f1419;
  --bg2: #171d25;
  --panel: #1c2430;
  --line: #2a3544;
  --text: #e8eef6;
  --muted: #93a0b3;
  --accent: #3d9a6a;
  --accent2: #d4a24c;
  --danger: #c45c5c;
  --ok: #4caf82;
  --font: "Segoe UI", "IBM Plex Sans", system-ui, sans-serif;
  --mono: "Cascadia Code", "Consolas", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a22 0%, transparent 50%),
              radial-gradient(900px 500px at 100% 0%, #243044 0%, transparent 45%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: #8ecbb0; text-decoration: none; }
a:hover { color: #b7e3cf; }

.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.nav {
  background: rgba(23, 29, 37, 0.95);
  border-right: 1px solid var(--line);
  padding: 1.25rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}
.brand span { color: var(--accent); }
.brand-sub { color: var(--muted); font-size: 0.8rem; margin-bottom: 1.5rem; }
.nav a {
  display: block;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.nav a.active, .nav a:hover {
  background: var(--panel);
  color: var(--text);
}

.main { padding: 1.5rem 1.75rem 3rem; }
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
h1 { margin: 0; font-size: 1.55rem; font-weight: 650; }
.muted { color: var(--muted); }

.grid { display: grid; gap: 1rem; }
.grid.kpi { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
}
.card h2, .card h3 { margin: 0 0 0.75rem; font-size: 1rem; }
.kpi .value { font-size: 1.6rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.kpi .label { color: var(--muted); font-size: 0.85rem; margin-top: 0.2rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td {
  text-align: left;
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
.num { font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 0.85rem; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge.ok { color: var(--ok); border-color: #2f6b4f; }
.badge.warn { color: var(--accent2); border-color: #6b5530; }
.badge.bad { color: var(--danger); border-color: #6b3030; }

.btn, button, .actions button {
  appearance: none;
  border: 1px solid var(--line);
  background: #243141;
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.7rem;
  font: inherit;
  cursor: pointer;
}
.btn.primary, button.primary {
  background: var(--accent);
  border-color: #2f7a54;
  color: #06140d;
  font-weight: 600;
}
.btn.danger { background: #3a2222; border-color: #6b3030; color: #f0c0c0; }
.actions { display: flex; gap: 0.4rem; flex-wrap: wrap; }
form.inline { display: inline; }

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login-card {
  width: min(420px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.5rem;
}
.login-card h1 { margin-bottom: 0.35rem; }
.field { margin: 1rem 0; }
.field label { display: block; color: var(--muted); margin-bottom: 0.35rem; font-size: 0.9rem; }
.field input, .field textarea {
  width: 100%;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  padding: 0.65rem 0.75rem;
  font: inherit;
}
.error { color: #f0a0a0; margin: 0.5rem 0; }

.stack { display: grid; gap: 1rem; }
.two-col { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1rem; }
@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
  .nav { position: relative; height: auto; }
  .two-col { grid-template-columns: 1fr; }
}

.playbook p { line-height: 1.55; color: #d5deea; }
.playbook ul { color: #d5deea; line-height: 1.55; }
.playbook li { margin-bottom: 0.35rem; }