/*
 * Authenticated app shell: topbar, sidebar, content area, and the shared
 * component set used by every migrated screen (stat cards, data cards,
 * tables, badges). Built entirely on tokens.css variables.
 */

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

/* ---- Sidebar ---- */

.app-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--color-surface-raised);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  transition: transform var(--transition-base);
}

.app-sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
  color: var(--color-text);
}
.app-sidebar-brand img { width: 32px; height: 32px; border-radius: var(--radius-sm); }
.app-sidebar-brand span { font-weight: 700; font-size: 15px; }

.app-nav { padding: var(--space-3); }
.app-nav-header {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--space-3) var(--space-2) var(--space-1);
}
.app-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-size: 14px;
  cursor: pointer;
}
.app-nav-link:hover { background: var(--color-bg); }
.app-nav-link.is-active { background: var(--color-primary); color: var(--color-text-inverse); }
.app-nav-link .icon { width: 18px; text-align: center; opacity: 0.85; }

.app-nav-group > summary {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px var(--space-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  list-style: none;
}
.app-nav-group > summary::-webkit-details-marker { display: none; }
.app-nav-group > summary:hover { background: var(--color-bg); }
.app-nav-group[open] > summary { font-weight: 600; }
.app-nav-subitem { padding-left: var(--space-8); }

/* ---- Topbar ---- */

.app-topbar {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-5);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky;
  top: 0;
  z-index: 5;
}
.app-topbar-title { font-size: 16px; font-weight: 600; margin: 0; }
.app-topbar-actions { display: flex; align-items: center; gap: var(--space-3); }

.app-icon-btn {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  color: var(--color-text-muted);
  font-size: 13px;
  cursor: pointer;
}
.app-icon-btn:hover { color: var(--color-text); border-color: var(--color-border-strong); }

/* ---- Content ---- */

.app-content { flex: 1; min-width: 0; }
.app-content-inner { padding: var(--space-5); max-width: 1400px; margin: 0 auto; }

.app-breadcrumb { font-size: 13px; color: var(--color-text-muted); margin: 0 0 var(--space-4); }
.app-breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.app-breadcrumb a:hover { color: var(--color-primary); }

/* ---- Stat cards ---- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.stat-card-top { display: flex; align-items: flex-start; justify-content: space-between; }
.stat-card-value { font-size: 28px; font-weight: 700; line-height: 1; }
.stat-card-label { font-size: 13px; color: var(--color-text-muted); margin: 0; }
.stat-card-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-primary) 14%, transparent);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.stat-card-footer {
  font-size: 12px;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: auto;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
}
.stat-card-footer:hover { text-decoration: underline; }

/* ---- Generic card ---- */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.card-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 14px;
}
.card-body { padding: var(--space-4); }
.card-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
}

/* ---- Two-column form layout (settings-style screens) ---- */

.form-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}
@media (min-width: 900px) {
  .form-columns.two-col { grid-template-columns: 1fr 1fr; }
}

/* ---- Badges ---- */

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-success { background: color-mix(in srgb, var(--color-success) 16%, transparent); color: var(--color-success); }
.badge-danger { background: color-mix(in srgb, var(--color-danger) 16%, transparent); color: var(--color-danger); }
.badge-warning { background: color-mix(in srgb, var(--color-warning) 16%, transparent); color: var(--color-warning); }
.badge-neutral { background: var(--color-bg); color: var(--color-text-muted); }

/* ---- Table ---- */

.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-md); }
table.app-table { width: 100%; border-collapse: collapse; font-size: 14px; }
table.app-table th, table.app-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--color-border); }
table.app-table th { background: var(--color-bg); font-weight: 600; color: var(--color-text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.03em; }
table.app-table tbody tr:hover { background: var(--color-bg); }

/* ---- Empty state ---- */

.empty-state { text-align: center; padding: var(--space-8) var(--space-4); color: var(--color-text-muted); }

/* ---- Mobile ---- */

@media (max-width: 900px) {
  .app-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .app-sidebar.is-open { transform: translateX(0); }
  .app-shell { flex-direction: column; }
}

/* ---- DataTables compatibility (legacy jQuery DataTables plugin kept
   as-is for server-side list screens; this just restyles its generated
   chrome -- search box, length menu, pagination -- to match the new
   design tokens instead of Bootstrap 4's defaults) ---- */

.dataTables_wrapper { font-size: 14px; color: var(--color-text); }
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 6px 10px;
  margin-left: var(--space-2);
}
.dataTables_wrapper .dataTables_info { color: var(--color-text-muted); padding-top: var(--space-3); }
.dataTables_wrapper .dataTables_paginate .paginate_button {
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-sm) !important;
  margin-left: 4px;
  padding: 4px 10px !important;
  color: var(--color-text) !important;
  background: var(--color-surface) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current {
  background: var(--color-primary) !important;
  color: var(--color-text-inverse) !important;
  border-color: var(--color-primary) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled { opacity: 0.5; }
table.dataTable { width: 100% !important; border-collapse: collapse; font-size: 14px; }
table.dataTable thead th {
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--color-border) !important;
  padding: 10px 14px !important;
}
table.dataTable tbody td { padding: 10px 14px; border-bottom: 1px solid var(--color-border); }
table.dataTable tbody tr:hover { background: var(--color-bg); }