/* Pharma Purchase System - User-friendly design */
:root {
  --primary: #0d6efd;
  --primary-dark: #0a58ca;
  --sidebar-bg: #1e293b;
  --sidebar-hover: #334155;
  --card-shadow: 0 1px 3px rgba(0,0,0,.08);
  --card-radius: 12px;
  --body-bg: #f8fafc;
}

body {
  background: var(--body-bg);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #334155;
}

/* Navbar */
.navbar-app {
  background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%) !important;
  box-shadow: 0 2px 8px rgba(13, 110, 253, .25);
  padding: .6rem 1rem;
}
.navbar-app .navbar-brand {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.navbar-app .nav-link {
  border-radius: 8px;
  padding: .5rem .85rem !important;
  font-weight: 500;
  transition: background .2s, color .2s;
}
.navbar-app .nav-link:hover {
  background: rgba(255,255,255,.15);
  color: #fff !important;
}
.navbar-app .nav-link i {
  margin-right: .35rem;
  opacity: .95;
}
.navbar-app .navbar-text {
  font-size: .9rem;
  padding: .35rem .6rem;
  background: rgba(255,255,255,.12);
  border-radius: 8px;
}
.navbar-app .btn-outline-light {
  border-radius: 8px;
  font-weight: 500;
}
.navbar-app .btn-outline-light:hover {
  background: rgba(255,255,255,.2);
  border-color: #fff;
}

/* Main content */
.app-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}

/* Page title bar */
.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-header h1, .page-header .h4 {
  margin: 0;
  font-weight: 700;
  color: #1e293b;
  font-size: 1.5rem;
}
.page-header .btn-primary {
  border-radius: 10px;
  font-weight: 600;
  padding: .5rem 1.1rem;
}

/* Cards */
.card-app {
  background: #fff;
  border: none;
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}
.card-app .card-body {
  padding: 1.25rem 1.5rem;
}
.card-app .card-title, .card-app h5, .card-app h6 {
  font-weight: 600;
  color: #1e293b;
  margin-bottom: 1rem;
}

/* Tables */
.table-app {
  margin-bottom: 0;
}
.table-app thead th {
  font-weight: 600;
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: #64748b;
  border-bottom: 1px solid #e2e8f0;
  padding: .85rem 1rem;
  background: #f8fafc;
}
.table-app tbody td {
  padding: .85rem 1rem;
  vertical-align: middle;
}
.table-app tbody tr {
  transition: background .15s;
}
.table-app tbody tr:hover {
  background: #f8fafc;
}
.table-app .btn-sm {
  border-radius: 6px;
  font-weight: 500;
}

/* Badges */
.badge {
  font-weight: 500;
  padding: .35em .65em;
  border-radius: 6px;
}

/* Alerts */
.alert {
  border: none;
  border-radius: 10px;
}
.alert-success { background: #ecfdf5; color: #065f46; }
.alert-danger { background: #fef2f2; color: #991b1b; }
.alert-warning { background: #fffbeb; color: #92400e; }

/* Forms */
.form-label {
  font-weight: 500;
  color: #475569;
  margin-bottom: .35rem;
}
.form-control, .form-select {
  border-radius: 8px;
  border-color: #e2e8f0;
  padding: .5rem .75rem;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(13, 110, 253, .15);
}

/* Buttons */
.btn {
  border-radius: 8px;
  font-weight: 500;
}
.btn-primary {
  background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
  border: none;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #0a58ca 0%, #084298 100%);
  border: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(13, 110, 253, .35);
}
.btn-success:hover { transform: translateY(-1px); }
.btn-outline-primary { border-radius: 8px; }
.btn-outline-secondary { border-radius: 8px; }

/* Login page – base layout; theme.css adds animated background & form animation */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
body.login-page .login-card {
  border-radius: 20px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
}
.login-card .card-title { font-size: 1.5rem; margin-bottom: .5rem; }
.login-card .text-muted { font-size: .875rem; margin-bottom: 1.5rem; }
.login-card .form-control { padding: .65rem .85rem; border-radius: 10px; }

/* Footer */
.app-footer {
  background: #fff;
  border-top: 1px solid #e2e8f0;
  padding: .85rem 1rem;
  margin-top: auto;
  font-size: .8rem;
  color: #64748b;
}

/* Empty state */
.table-app tbody tr td.text-muted {
  padding: 2rem;
  text-align: center;
  color: #94a3b8;
}