/*
  Layout styles
  - App shell, topbar, sidebar, content region
  - Overrides AdminLTE structure without introducing a second layout
*/

html,
body {
  height: 100%;
}

html {
  /* Slightly denser baseline than AdminLTE/Bootstrap defaults */
  font-size: 15px;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  color: var(--text-default);
  background: var(--surface-app);
}

/* Premium dark canvas */
html[data-theme="dark"] body {
  background: radial-gradient(1200px 700px at 12% 8%, rgba(99, 102, 241, 0.26), transparent 60%),
    radial-gradient(900px 540px at 82% 18%, rgba(245, 158, 11, 0.12), transparent 62%),
    radial-gradient(900px 540px at 42% 88%, rgba(56, 189, 248, 0.14), transparent 58%),
    var(--surface-app);
}

/* Ensure the AdminLTE wrapper behaves like an app shell */
.wrapper.app-shell {
  min-height: 100vh;
  background: var(--surface-app);
}

/* Topbar */
.main-header.navbar {
  height: var(--topbar-height);
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-card) 94%, var(--primary-50));
  backdrop-filter: blur(10px);
}

html[data-theme="dark"] .main-header.navbar {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.62));
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}

.main-header.navbar .nav-link {
  color: var(--text-default);
  font-size: 0.95rem;
}

.main-header.navbar .nav-link:hover {
  color: var(--text-strong);
}

/* Breadcrumbs in topbar */
.topbar-breadcrumbs {
  display: flex;
  align-items: center;
  margin-left: var(--space-3);
}

.topbar-breadcrumbs .breadcrumb {
  margin: 0;
  padding: 0;
  background: transparent;
  border-radius: 0;
}

.topbar-breadcrumbs .breadcrumb-item,
.topbar-breadcrumbs .breadcrumb-item a {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.topbar-breadcrumbs .breadcrumb-item.active {
  color: var(--text-default);
}

/* Right side actions */
.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Sidebar */
.main-sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-elevated) 95%, var(--primary-50)), var(--surface-elevated));
  border-right: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

html[data-theme="dark"] .main-sidebar {
  background: linear-gradient(180deg, rgba(2, 6, 23, 0.78), rgba(2, 6, 23, 0.92));
  border-right: 1px solid rgba(148, 163, 184, 0.14);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

/* Slimmer brand */
.main-sidebar .brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  height: var(--topbar-height);
  border-bottom: 1px solid var(--border);
}

html[data-theme="dark"] .main-sidebar .brand-link {
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.main-sidebar .brand-link .brand-image {
  width: 28px;
  height: 28px;
  object-fit: cover;
  opacity: 0.92;
  box-shadow: var(--shadow-xs);
}

.main-sidebar .brand-text {
  font-weight: var(--weight-semibold);
  letter-spacing: 0.2px;
  font-size: 0.98rem;
}

/* Sidebar content spacing */
.main-sidebar .sidebar {
  padding: var(--space-3);
}

/* User panel: reduce AdminLTE feel */
html[data-theme="dark"] .main-sidebar .user-panel {
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  padding-bottom: var(--space-3);
}

html[data-theme="dark"] .main-sidebar .user-panel .info a {
  color: rgba(226, 232, 240, 0.92) !important;
  font-weight: var(--weight-medium);
  font-size: 0.95rem;
}

/* Nav pills restyle */
.nav-sidebar > .nav-item {
  margin-bottom: var(--space-1);
}

.nav-sidebar .nav-link {
  border-radius: var(--radius-md);
  padding: 0.5rem 0.7rem;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-default);
  font-size: 0.95rem;
  transition: background-color var(--dur-standard) var(--ease-out),
    box-shadow var(--dur-standard) var(--ease-out),
    transform var(--dur-standard) var(--ease-out);
}

.nav-sidebar .nav-link .nav-icon {
  width: 1.25rem;
  text-align: center;
  opacity: 0.95;
}

.nav-sidebar .nav-link:hover {
  background: color-mix(in srgb, var(--primary-50) 65%, transparent);
  transform: translateY(-1px);
}

html[data-theme="dark"] .nav-sidebar .nav-link {
  color: rgba(226, 232, 240, 0.82);
}

html[data-theme="dark"] .nav-sidebar .nav-link:hover {
  background: rgba(148, 163, 184, 0.10);
}

.nav-sidebar .nav-link.active {
  background: linear-gradient(90deg, color-mix(in srgb, var(--primary-600) 14%, transparent), transparent);
  box-shadow: inset 3px 0 0 var(--primary-600);
  color: var(--text-strong);
}

html[data-theme="dark"] .nav-sidebar .nav-link.active {
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.18), rgba(245, 158, 11, 0.04));
  box-shadow: inset 3px 0 0 var(--accent-500);
  color: rgba(248, 250, 252, 0.96);
}

.nav-sidebar .nav-header {
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

html[data-theme="dark"] .nav-sidebar .nav-header {
  color: rgba(148, 163, 184, 0.78);
}

/* Treeview indentation */
.nav-sidebar .nav-treeview {
  padding-left: var(--space-2);
}

.nav-sidebar .nav-treeview .nav-link {
  padding-left: 0.9rem;
}

/* Content area */
.content-wrapper {
  background: var(--surface-page);
  min-height: calc(100vh - var(--topbar-height));
}

html[data-theme="dark"] .content-wrapper {
  background: transparent;
}

/* Page header spacing + breadcrumb contrast */
/* Add only vertical separation from the page header (no width changes) */
.content-wrapper > .content {
  margin-top: var(--space-4);
}

html[data-theme="dark"] .content-header .breadcrumb,
html[data-theme="dark"] .content-header .breadcrumb-item,
html[data-theme="dark"] .content-header .breadcrumb-item a {
  color: rgba(248, 250, 252, 0.92);
}

html[data-theme="dark"] .content-header .breadcrumb-item.active {
  color: rgba(248, 250, 252, 0.96);
}

/* Keep AdminLTE full-width container behavior */

.content-wrapper > .content-header {
  padding: var(--space-5) var(--space-6) var(--space-3);
  background: transparent;
  border-bottom: 1px solid var(--border);
}

html[data-theme="dark"] .content-wrapper > .content-header {
  background: linear-gradient(180deg, rgba(15, 27, 61, 0.60), rgba(15, 27, 61, 0.18));
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
  backdrop-filter: blur(10px);
}

.content-header h1,
.content-header .m-0 {
  font-size: 1.2rem;
  font-weight: var(--weight-semibold);
  letter-spacing: -0.01em;
  color: var(--text-strong);
}

.content-header .breadcrumb {
  background: transparent;
  padding: 0;
  margin: 0;
}

.content {
  padding: var(--space-5);
}

.main-footer {
  border-top: 1px solid var(--border);
  background: var(--surface-card);
  color: var(--text-muted);
  padding: var(--space-3) var(--space-6);
}

.main-footer a {
  color: var(--text-default);
}

/* Responsive: tighter padding */
@media (max-width: 991.98px) {
  .content-wrapper > .content-header {
    padding: var(--space-5) var(--space-4) var(--space-3);
  }

  .content {
    padding: var(--space-4);
  }
}

/* Collapsed sidebar: align with AdminLTE sidebar-collapse */
body.sidebar-collapse .main-sidebar {
  width: var(--sidebar-width-collapsed);
}

body.sidebar-collapse .main-sidebar .brand-text,
body.sidebar-collapse .main-sidebar .user-panel .info,
body.sidebar-collapse .main-sidebar .nav-sidebar .nav-link p {
  display: none;
}

body.sidebar-collapse .main-sidebar .nav-sidebar .nav-link {
  justify-content: center;
}

/* Smooth collapse */
.main-sidebar,
.content-wrapper,
.main-header {
  transition: width var(--dur-slow) var(--ease-out),
    margin-left var(--dur-slow) var(--ease-out),
    background-color var(--dur-standard) var(--ease-out);
}

@media (max-width: 767.98px) {
  .topbar-breadcrumbs {
    display: none;
  }
}