:root {
  --navy: #0f172a;
  --navy-light: #1e293b;
  --gold: #fbbf24;
  --border: #e2e8f0;
  --muted: #64748b;
  --bg: #f1f5f9;
  --font: "Source Sans 3", system-ui, sans-serif;
  --display: "Libre Baskerville", Georgia, serif;
}

* { box-sizing: border-box; }
body.app-body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: #0f172a;
  min-height: 100vh;
}

.app-shell { display: flex; min-height: 100vh; }
.app-sidebar {
  width: 260px;
  background: var(--navy);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.app-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.1rem 1.15rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  text-decoration: none;
  color: inherit;
}
.app-brand img {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: #fff;
  object-fit: contain;
}
.app-brand strong { display: block; font-family: var(--display); font-size: 0.95rem; }
.app-brand span { font-size: 0.72rem; color: #94a3b8; }

.app-nav { padding: 0.75rem; flex: 1; overflow-y: auto; }
.app-nav-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #94a3b8;
  padding: 0.65rem 0.65rem 0.35rem;
}
.app-nav a,
.app-nav button.nav-link {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 0.55rem;
  text-align: left;
  appearance: none;
  border: 0;
  background: transparent;
  color: #cbd5e1;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
  margin-bottom: 0.15rem;
}
.app-nav a:hover,
.app-nav button.nav-link:hover,
.app-nav a.is-active,
.app-nav button.nav-link.is-active {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.app-nav a.is-active,
.app-nav button.nav-link.is-active {
  background: rgba(251, 191, 36, 0.15);
  color: var(--gold);
}

.app-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.app-topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 20;
}
.app-topbar h1 {
  margin: 0;
  font-size: 1.15rem;
  font-family: var(--display);
  color: var(--navy);
}
.app-topbar-actions { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.app-user {
  text-align: right;
  font-size: 0.82rem;
}
.app-user strong { display: block; color: var(--navy); }
.app-user span { color: var(--muted); font-size: 0.75rem; }

.app-content { padding: 1.25rem; flex: 1; }

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--navy);
  border-radius: 8px;
  padding: 0.5rem 0.85rem;
  font: inherit;
  font-weight: 650;
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.btn:hover { border-color: #94a3b8; }
.btn-primary {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.btn-primary:hover { background: var(--navy-light); }
.btn-gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
}
.btn-danger { color: #b91c1c; border-color: #fecaca; }
.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.78rem; }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
}
.card + .card { margin-top: 1rem; }
.grid-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1rem;
}
.stat-card h3 {
  margin: 0;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 700;
}
.stat-card p {
  margin: 0.35rem 0 0;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--navy);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}
.toolbar input[type="search"],
.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
}
.toolbar input[type="search"] { max-width: 260px; }

.table-wrap { overflow-x: auto; }
table.app-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
table.app-table th,
table.app-table td {
  text-align: left;
  padding: 0.7rem 0.65rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.app-table th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: #f8fafc;
}
.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: #e2e8f0;
  color: #334155;
}
.badge.ok { background: #dcfce7; color: #166534; }
.badge.warn { background: #fef3c7; color: #92400e; }
.badge.bad { background: #fee2e2; color: #991b1b; }

.muted { color: var(--muted); font-size: 0.85rem; }
.hidden { display: none !important; }

/* Login page */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at top right, rgba(251,191,36,0.18), transparent 40%),
    linear-gradient(160deg, #0f172a 0%, #1e293b 45%, #334155 100%);
}
.login-card {
  width: 100%;
  max-width: 720px;
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.login-head {
  background: var(--navy);
  color: #fff;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}
.login-head h1 {
  margin: 0.2rem 0 0;
  font-family: var(--display);
  font-size: 1.35rem;
}
.login-head p { margin: 0; color: #94a3b8; font-size: 0.8rem; }
.login-body { padding: 1.35rem 1.5rem 1.5rem; }
.choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
}
@media (max-width: 640px) {
  .choice-grid { grid-template-columns: 1fr; }
  .app-shell { flex-direction: column; }
  .app-sidebar { width: 100%; }
  .app-nav { display: flex; flex-wrap: wrap; gap: 0.25rem; }
  .app-nav a, .app-nav button.nav-link { width: auto; }
}
.choice-btn {
  text-align: left;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  background: #fff;
  cursor: pointer;
  font: inherit;
}
.choice-btn:hover { border-color: var(--navy); box-shadow: 0 8px 20px rgba(15,23,42,0.06); }
.choice-btn strong { display: block; color: var(--navy); margin-bottom: 0.35rem; }
.choice-btn span { color: var(--muted); font-size: 0.85rem; line-height: 1.4; }

.field { margin-bottom: 0.85rem; }
.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: #334155;
}
.cred-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.85rem;
}
.cred-chip {
  text-align: left;
  border: 1px dashed #cbd5e1;
  background: #f8fafc;
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
  cursor: pointer;
  font: inherit;
}
.cred-chip:hover { border-color: var(--navy); background: #fff; }
.cred-chip strong { display: block; font-size: 0.85rem; color: var(--navy); }
.cred-chip span { font-size: 0.75rem; color: var(--muted); }
.form-error {
  color: #b91c1c;
  font-size: 0.85rem;
  margin: 0.35rem 0 0.75rem;
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 50;
}
.modal {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  padding: 1.15rem;
  max-height: 90vh;
  overflow: auto;
}
.modal h3 { margin: 0 0 0.85rem; font-family: var(--display); }
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}
.mobile-toggle {
  display: none;
  margin: 0.65rem;
}
@media (max-width: 900px) {
  .mobile-toggle { display: inline-flex; }
  .app-sidebar.collapsed .app-nav,
  .app-sidebar.collapsed .app-nav-label { display: none; }
}