/* Tokens */
:root {
  --blue: #004aad;
  --blue-2: #0066d6;
  --yellow: #fef08a;
  --ink: #1e293b;
  --text: #334155;
  --muted: #64748b;
  --paper: #f1f5f9;
  --card: #ffffff;
  --line: #e2e8f0;
  --ok: #166534;
  --warn: #92400e;
  --err: #b91c1c;
  --radius: 12px;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .06);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font: 15px/1.5 var(--sans); color: var(--text); background: var(--paper); }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.err { color: var(--err); }
.out { background: #0f172a; color: #e2e8f0; padding: 12px; border-radius: 8px; overflow: auto; font-size: 12px; max-height: 240px; }

/* Layout */
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100%; }
.sidebar {
  background: var(--blue); color: #e0ecff; padding: 28px 20px; display: flex; flex-direction: column; gap: 14px;
  position: sticky; top: 0; height: 100vh;
}
.brand-title { font: 700 26px var(--serif); color: #fff; letter-spacing: -.01em; margin-bottom: 10px; }
.sidebar label { color: #bcd4f7; }
.sidebar select { width: 100%; }
.sidebar nav { display: flex; flex-direction: column; gap: 4px; margin-top: 12px; }
.sidebar nav a {
  color: #e0ecff; text-decoration: none; padding: 10px 12px; border-radius: 10px;
  transition: background .15s ease, transform .15s ease;
}
.sidebar nav a:hover { background: rgba(255, 255, 255, .12); }
.sidebar nav a:focus-visible { outline: 2px solid var(--yellow); outline-offset: 2px; }
.sidebar nav a.active { background: #fff; color: var(--blue); font-weight: 700; transform: translateX(4px); }
.sidebar .ghost { margin-top: auto; color: #e0ecff; border-color: rgba(255,255,255,.4); }

main { padding: 40px clamp(20px, 4vw, 56px); max-width: 1180px; width: 100%; }
h1 { font: 700 34px/1.1 var(--serif); color: var(--ink); margin: 0 0 24px; letter-spacing: -.02em; }
h3 { font: 700 17px var(--serif); color: var(--ink); margin: 0 0 12px; }

/* Cards and grid */
.card { background: var(--card); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); margin-bottom: 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat { background: var(--card); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border-top: 4px solid var(--blue); }
.stat:nth-child(2n) { border-top-color: var(--yellow); }
.stat .num { font: 700 34px var(--serif); color: var(--ink); }
.stat .lbl { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } .layout { grid-template-columns: 1fr; } .sidebar { height: auto; position: static; } }

/* Forms */
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 10px; }
.row.between { justify-content: space-between; }
input, select, textarea {
  font: inherit; color: var(--ink); background: #fff; border: 1px solid #cbd5e1; border-radius: 10px; padding: 10px 12px;
  min-width: 180px; flex: 1;
}
textarea { width: 100%; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 3px solid rgba(0, 74, 173, .25); border-color: var(--blue); }
button {
  font: 700 14px var(--sans); border-radius: 10px; padding: 10px 18px; cursor: pointer; border: 1px solid transparent;
  transition: transform .12s ease, box-shadow .12s ease, background .15s ease;
}
button:hover { transform: translateY(-1px); }
button:active { transform: translateY(0); }
button:focus-visible { outline: 3px solid var(--yellow); outline-offset: 2px; }
button.primary { background: var(--blue); color: #fff; box-shadow: 0 6px 16px rgba(0, 74, 173, .25); }
button.primary:hover { background: var(--blue-2); }
button.ghost { background: transparent; color: var(--blue); border-color: #94a3b8; }
button.ghost:hover { background: #eef4ff; }
button.small { padding: 6px 12px; font-size: 13px; }
.sidebar button.ghost:hover { background: rgba(255,255,255,.12); }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
tr:hover td { background: #f8fafc; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.b-ok { background: #dcfce7; color: var(--ok); }
.b-off { background: #fee2e2; color: var(--err); }
.b-warn { background: var(--yellow); color: var(--warn); }

iframe { width: 100%; height: 460px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { max-width: 380px; width: 100%; }
.login-card input { width: 100%; margin: 12px 0; }