:root {
  --accent: #2876b5;
  --accent-dark: #154069;
  --line: #e5e9ee;
  --ok: #1f8e7f;
  --warn: #b67a13;
  --danger: #c0392b;
  --text: #1f2d3d;
  --muted: #6b7a8a;
  --faint: #94a2b3;
  --bg: #f6f8fb;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: -apple-system, Segoe UI, Roboto, sans-serif; color: var(--text); background: var(--bg); font-size: 14px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: Consolas, monospace; font-size: 12px; }
.center { text-align: center; }
.danger { color: var(--danger); }
.warn { color: var(--warn); }
.ok { color: var(--ok); }
.inline { display: inline; }

/* === Auth pages === */
body.auth {
  display: grid; place-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
}
.auth-card {
  width: min(420px, 92vw);
  background: #ffffff;
  padding: 28px 32px;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .25);
}
.auth-card h1, .auth-card h2 { margin: 0 0 14px 0; color: var(--accent-dark); }
.auth-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--accent-dark); margin-bottom: 12px; }
.auth-brand .logo { width: 36px; height: 36px; background: var(--accent); color: #fff; display: grid; place-items: center; border-radius: 8px; font-weight: 800; }
.auth-card label { display: block; margin: 12px 0 4px; font-weight: 600; font-size: 12px; color: var(--text); }
.auth-card input { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 7px; font-size: 14px; }
.auth-card input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(35, 104, 162, .15); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 16px; margin-top: 14px;
  background: var(--accent); color: #fff;
  border: 0; border-radius: 7px;
  font: inherit; font-weight: 700; cursor: pointer;
  transition: background .12s, transform .12s;
}
.btn:hover { background: var(--accent-dark); }
.btn.primary { background: var(--accent); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn.ghost:hover { background: #f1f4f8; color: var(--accent); }
.btn.small { padding: 4px 10px; font-size: 12px; margin: 0; }
.btn.danger { color: var(--danger); border-color: rgba(192,57,43,.4); }
.btn.danger:hover { background: #fdecea; }

.alert { padding: 10px 14px; border-radius: 7px; margin-bottom: 12px; font-size: 13px; }
.alert.err { background: #fdecea; color: var(--danger); border: 1px solid rgba(192,57,43,.3); }
.alert.ok  { background: #e6f6f3; color: var(--ok);     border: 1px solid rgba(31,142,127,.3); }

/* === App layout === */
body.app {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
.sidebar {
  background: var(--accent-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 18px 0;
}
.sidebar .brand {
  display: flex; align-items: center; gap: 10px;
  padding: 0 18px 18px 18px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.sidebar .logo { width: 36px; height: 36px; background: #fff; color: var(--accent-dark); display: grid; place-items: center; border-radius: 8px; font-weight: 800; }
.sidebar .brand-name { font-weight: 800; font-size: 16px; }
.sidebar .brand-sub { font-size: 11px; opacity: .65; letter-spacing: .4px; text-transform: uppercase; }
.sidebar nav { padding: 12px 8px; flex: 1; }
.sidebar nav a {
  display: block; padding: 10px 14px; margin-bottom: 2px;
  color: rgba(255,255,255,.85); border-radius: 6px;
  font-weight: 500;
}
.sidebar nav a:hover { background: rgba(255,255,255,.08); color: #fff; text-decoration: none; }
.sidebar nav a.is-active { background: var(--accent); color: #fff; }
.sidebar-footer { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.1); font-size: 12px; }
.sidebar-footer .user { font-weight: 600; margin-bottom: 4px; }
.sidebar-footer .logout { color: rgba(255,255,255,.7); }
.sidebar-footer .logout:hover { color: #fff; }

.content { padding: 24px 28px; max-width: 1400px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.page-head h1 { margin: 0; font-size: 22px; color: var(--accent-dark); }
.page-foot { margin-top: 30px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 11px; color: var(--faint); text-align: center; }

/* === Cards === */
.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 18px 20px; margin-bottom: 18px; }
.card h2 { margin: 0 0 12px 0; font-size: 14px; color: var(--accent-dark); text-transform: uppercase; letter-spacing: .4px; }
.key-display .keybox { width: 100%; min-height: 70px; font-family: Consolas, monospace; font-size: 11px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: #fafbfd; resize: vertical; }

/* === Stats grid === */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin-bottom: 18px; }
.stat { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; }
.stat-lab { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; font-weight: 600; margin-bottom: 6px; }
.stat-val { font-size: 24px; font-weight: 800; color: var(--accent-dark); letter-spacing: -.5px; }
.stat-sub { font-size: 11px; color: var(--faint); margin-top: 2px; }
.stat.ok     .stat-val { color: var(--ok); }
.stat.warn   .stat-val { color: var(--warn); }
.stat.danger .stat-val { color: var(--danger); }

/* === Tables === */
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 8px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
.tbl thead th { background: #f0f3f7; font-size: 11px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); border-bottom: 2px solid var(--line); }
.tbl tbody tr:hover { background: #f7f9fc; }
.tbl td.num { text-align: right; font-variant-numeric: tabular-nums; }

.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: .2px; }
.pill.ok     { background: #e6f6f3; color: var(--ok);     border: 1px solid rgba(31,142,127,.3); }
.pill.warn   { background: #fff4e0; color: var(--warn);   border: 1px solid rgba(182,122,19,.3); }
.pill.danger { background: #fdecea; color: var(--danger); border: 1px solid rgba(192,57,43,.3); }

/* === Forms === */
.form-grid { display: grid; gap: 10px; max-width: 480px; }
.form-grid label { font-size: 12px; font-weight: 600; color: var(--text); }
.form-grid input, .form-grid select, .form-grid textarea {
  padding: 9px 11px; border: 1px solid var(--line); border-radius: 7px; font-size: 13px; font-family: inherit;
}
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(35, 104, 162, .15);
}
.form-grid .duo { display: grid; grid-template-columns: 1fr 100px; gap: 6px; }
.form-grid .checkbox { display: flex; align-items: center; gap: 8px; font-weight: 500; }
.form-grid .checkbox input { width: auto; }

.inline-form select { padding: 6px 10px; border: 1px solid var(--line); border-radius: 6px; font-size: 12px; }

dl.kv { display: grid; grid-template-columns: 160px 1fr; gap: 8px 18px; margin: 0; }
dl.kv dt { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .3px; }
dl.kv dd { margin: 0; }