:root {
  --ch-primary: #2f6f6b;
  --ch-primary-dark: #234f4c;
  --ch-accent: #e08e45;
  --ch-bg: #f5f7f7;
  --ch-text: #2b2b2b;
}

body {
  background: var(--ch-bg);
  color: var(--ch-text);
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
}

.app-navbar {
  background: linear-gradient(90deg, var(--ch-primary-dark), var(--ch-primary));
  padding: .75rem 1rem;
}
.app-navbar .navbar-brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
}
.app-navbar .navbar-brand span { color: var(--ch-accent); }
.app-navbar .nav-link {
  color: rgba(255,255,255,.85);
  font-weight: 500;
}
.app-navbar .nav-link.active,
.app-navbar .nav-link:hover { color: #fff; }

.main-container {
  padding: 2rem 2.5rem;
  max-width: 1300px;
  margin: 0 auto;
}

.app-footer { font-size: .85rem; }

/* Cards */
.stat-card {
  background: #fff;
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: 0 2px 10px rgba(0,0,0,.05);
  border-left: 5px solid var(--ch-primary);
  height: 100%;
}
.stat-card h3 { font-size: 1.9rem; margin: 0; font-weight: 700; }
.stat-card p { margin: 0; color: #777; font-size: .9rem; }
.stat-card.accent { border-left-color: var(--ch-accent); }

.card, .table-card {
  background: #fff;
  border-radius: 14px;
  border: none;
  box-shadow: 0 2px 10px rgba(0,0,0,.05);
}

.btn-primary {
  background-color: var(--ch-primary);
  border-color: var(--ch-primary);
}
.btn-primary:hover {
  background-color: var(--ch-primary-dark);
  border-color: var(--ch-primary-dark);
}
.btn-outline-primary {
  color: var(--ch-primary);
  border-color: var(--ch-primary);
}
.btn-outline-primary:hover {
  background-color: var(--ch-primary);
  border-color: var(--ch-primary);
}

table.table thead { background: #eef3f2; }

/* Auth pages */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--ch-primary-dark), var(--ch-primary));
}
.auth-box {
  background: #fff;
  padding: 2.5rem;
  border-radius: 16px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 10px 40px rgba(0,0,0,.25);
}
.auth-box .brand { font-weight: 800; color: var(--ch-primary-dark); }
.auth-box .brand span { color: var(--ch-accent); }

/* Invoice print view */
.invoice-sheet {
  background: #fff;
  border-radius: 14px;
  padding: 3rem;
  box-shadow: 0 2px 10px rgba(0,0,0,.05);
}
@media print {
  .app-navbar, .app-footer, .no-print { display: none !important; }
  .main-container { padding: 0; max-width: 100%; }
  .invoice-sheet { box-shadow: none; padding: 0; }
  body { background: #fff; }
}

.badge-status { font-size: .8rem; padding: .4em .7em; }