:root {
  --navy: #13294b;
  --navy-dark: #0b1a30;
  --gold: #b8892f;
  --gold-light: #f4c95d;
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #e1e5ea;
  --text: #1c2530;
  --text-muted: #5c6b7a;
  --danger: #b3261e;
  --danger-bg: #fdecea;
  --warn: #8a5a00;
  --warn-bg: #fff4dd;
  --ok: #1b6e3c;
  --ok-bg: #e7f5ec;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.boot-loading { padding: 3rem; text-align: center; color: var(--text-muted); }

a { color: var(--navy); }

button, .btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--navy);
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 0.55rem 1rem;
  transition: opacity 0.15s;
}
button:hover, .btn:hover { opacity: 0.88; }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.secondary, .btn.secondary { background: #fff; color: var(--navy); }
button.danger, .btn.danger { background: var(--danger); border-color: var(--danger); }
button.small, .btn.small { padding: 0.3rem 0.6rem; font-size: 0.85rem; }

input, select, textarea {
  font: inherit;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 100%;
  background: #fff;
  color: var(--text);
}
label { display: block; font-size: 0.85rem; color: var(--text-muted); margin: 0.6rem 0 0.25rem; }
form .row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
form .row > div { flex: 1; min-width: 160px; }

.app-shell { display: flex; flex-direction: column; min-height: 100vh; }

header.topbar {
  background: var(--navy);
  color: #fff;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
header.topbar .brand { font-weight: 700; letter-spacing: 0.02em; display: flex; align-items: center; gap: 0.5rem; }
header.topbar .brand .mark { color: var(--gold-light); }
header.topbar nav { display: flex; gap: 1rem; }
header.topbar nav a { color: #d7dee8; text-decoration: none; font-size: 0.92rem; }
header.topbar nav a.active { color: #fff; font-weight: 600; border-bottom: 2px solid var(--gold-light); }
header.topbar button.logout { background: transparent; border-color: rgba(255,255,255,0.4); font-size: 0.85rem; }

main.content { flex: 1; padding: 1rem; max-width: 960px; margin: 0 auto; width: 100%; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}
.card h2, .card h3 { margin-top: 0; }

.grid { display: grid; gap: 0.75rem; }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }

.stat { text-align: center; padding: 0.75rem; }
.stat .num { font-size: 1.8rem; font-weight: 700; color: var(--navy); }
.stat .label { font-size: 0.8rem; color: var(--text-muted); }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.5rem 0.4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.02em; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge.pending { background: var(--warn-bg); color: var(--warn); }
.badge.resolved, .badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.overdue, .badge.danger { background: var(--danger-bg); color: var(--danger); }
.badge.active { background: #e6ecf5; color: var(--navy); }

.list-link { display: flex; justify-content: space-between; align-items: center; padding: 0.65rem 0.2rem; border-bottom: 1px solid var(--border); text-decoration: none; color: inherit; }
.list-link:last-child { border-bottom: none; }
.list-link .name { font-weight: 600; }
.list-link .meta { font-size: 0.8rem; color: var(--text-muted); }

.tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); margin-bottom: 1rem; flex-wrap: wrap; }
.tabs a { padding: 0.5rem 0.9rem; text-decoration: none; color: var(--text-muted); border-bottom: 2px solid transparent; font-size: 0.9rem; }
.tabs a.active { color: var(--navy); border-bottom-color: var(--gold); font-weight: 600; }

.error-banner { background: var(--danger-bg); color: var(--danger); padding: 0.6rem 0.8rem; border-radius: 8px; margin-bottom: 0.8rem; font-size: 0.9rem; }
.ok-banner { background: var(--ok-bg); color: var(--ok); padding: 0.6rem 0.8rem; border-radius: 8px; margin-bottom: 0.8rem; font-size: 0.9rem; }

.center-auth { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 1rem; }
.auth-card { max-width: 380px; width: 100%; }
.auth-card h1 { font-size: 1.3rem; color: var(--navy); }
.auth-card .tag { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 1rem; }

.actions-row { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 0.75rem 0; }

footer.legal { text-align: center; font-size: 0.75rem; color: var(--text-muted); padding: 1.5rem 1rem 2rem; }

@media (max-width: 600px) {
  header.topbar nav { gap: 0.6rem; }
  header.topbar nav a { font-size: 0.82rem; }
  .stat .num { font-size: 1.4rem; }
}