/* ==========================================================================
   KARTOTEKEN — Layout Styles (App Shell, Sidebar, Header)
   ========================================================================== */

/* === APP SHELL === */
.app {
  display: flex;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0; /* Prevent flex overflow */
  transition: margin-left var(--transition-base);
}

.app.sidebar-open .app-main {
  margin-left: var(--sidebar-width);
}

/* === SIDEBAR === */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: white;
  border-right: 1px solid var(--color-neutral-200);
  display: flex;
  flex-direction: column;
  z-index: var(--z-overlay);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.app.sidebar-open .sidebar {
  transform: translateX(0);
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-neutral-200);
  min-height: var(--header-height);
}

.sidebar-brand img {
  height: 28px;
  width: auto;
}

.sidebar-brand-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-brand-primary);
  letter-spacing: 0.12em;
  font-family: 'Segoe UI', system-ui, sans-serif;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) 0;
}

.sidebar-section {
  padding: var(--space-2) var(--space-5);
  margin-top: var(--space-4);
}

.sidebar-section:first-child {
  margin-top: 0;
}

.sidebar-section-label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-neutral-400);
  padding: var(--space-2) 0;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-5);
  color: var(--color-neutral-700);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  border-radius: 0;
  transition: all var(--transition-fast);
  position: relative;
  text-decoration: none;
}

.sidebar-link:hover {
  background-color: var(--color-neutral-50);
  color: var(--color-neutral-900);
  text-decoration: none;
}

.sidebar-link.active {
  color: var(--color-brand-primary);
  background-color: var(--color-brand-primary-bg);
}

.sidebar-link.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background-color: var(--color-brand-primary);
  border-radius: 0 2px 2px 0;
}

.sidebar-link-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
}

.sidebar-link.active .sidebar-link-icon {
  opacity: 1;
}

.sidebar-link-badge {
  margin-left: auto;
  background-color: var(--color-brand-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-neutral-200);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--color-brand-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--font-size-xs);
  color: var(--color-neutral-500);
}

/* === HEADER === */
.header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-6);
  height: var(--header-height);
  background: white;
  border-bottom: 1px solid var(--color-neutral-200);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.header-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-neutral-600);
  transition: all var(--transition-fast);
}

.header-toggle:hover {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

.header-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-neutral-900);
}

.header-spacer {
  flex: 1;
}

.header-workshop {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-neutral-100);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--color-neutral-700);
}

/* === PAGE CONTENT === */
.page-content {
  flex: 1;
  padding: var(--space-6);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.page-header-left {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* === TABLE TOOLBAR === */
.table-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-neutral-200);
  flex-wrap: wrap;
}

.table-search {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 360px;
}

.table-search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-neutral-400);
  pointer-events: none;
}

.table-search .form-input {
  padding-left: var(--space-10);
}

.table-filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-neutral-700);
  background: var(--color-neutral-100);
  border: 1px solid var(--color-neutral-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  background: var(--color-neutral-200);
}

.filter-chip.active {
  background: var(--color-brand-primary-bg);
  border-color: var(--color-brand-primary);
  color: var(--color-brand-primary);
}

/* === TABLE PAGINATION === */
.table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  border-top: 1px solid var(--color-neutral-200);
  font-size: var(--font-size-sm);
  color: var(--color-neutral-600);
}

.pagination-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.pagination-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-neutral-600);
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

.pagination-btn.active {
  background: var(--color-brand-primary);
  color: white;
}

/* === MOBILE OVERLAY === */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: calc(var(--z-overlay) - 1);
}

/* === RESPONSIVE === */
@media (min-width: 1024px) {
  /* Desktop: sidebar always visible */
  .app.sidebar-open .sidebar,
  .sidebar {
    transform: translateX(0);
  }

  .app-main {
    margin-left: var(--sidebar-width);
  }

  .header-toggle {
    display: none;
  }
}

@media (max-width: 1023px) {
  /* Tablet/Mobile: sidebar as overlay */
  .sidebar-backdrop.active {
    display: block;
  }

  .app-main {
    margin-left: 0 !important;
  }

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

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  /* Small mobile */
  .page-content {
    padding: var(--space-3);
  }

  .table-toolbar {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-3);
  }

  .table-search {
    max-width: none;
  }

  .table-pagination {
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-3);
  }

  .header {
    padding: 0 var(--space-4);
  }

  /* Hide less important table columns on mobile */
  .data-table .col-supplier,
  .data-table .col-invoice,
  .data-table .col-value {
    display: none;
  }
}

/* === LOGIN PAGE === */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-neutral-900) 0%, #1a1a2e 50%, var(--color-neutral-800) 100%);
  padding: var(--space-4);
}

.login-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-12) var(--space-10);
  width: 100%;
  max-width: 440px;
  text-align: center;
}

.login-logo {
  height: 48px;
  margin: 0 auto var(--space-6);
}

.login-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-2);
}

.login-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-neutral-500);
  margin-bottom: var(--space-8);
}

.login-btn {
  width: 100%;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.login-btn svg {
  width: 20px;
  height: 20px;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--color-neutral-400);
  font-size: var(--font-size-sm);
}

.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-neutral-200);
}

.login-footer {
  margin-top: var(--space-8);
  font-size: var(--font-size-xs);
  color: var(--color-neutral-400);
}

.login-error {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  display: none;
}

.login-error.visible {
  display: block;
}

/* ==========================================================================
   DARK MODE OVERRIDES
   Aktywowane automatycznie przez klasę .dark-mode na <body>
   ========================================================================== */

body.dark-mode .sidebar {
  background: #1a1a2e;
  border-right-color: #2a2a3e;
}

body.dark-mode .sidebar-brand {
  border-bottom-color: #2a2a3e;
}

body.dark-mode .sidebar-brand-text {
  color: #ff6b6b;
}

body.dark-mode .sidebar-section-label {
  color: #555;
}

body.dark-mode .sidebar-link {
  color: #aaa;
}

body.dark-mode .sidebar-link:hover {
  background-color: #2a2a3e;
  color: #ddd;
}

body.dark-mode .sidebar-link.active {
  color: #ff6b6b;
  background-color: rgba(255, 107, 107, 0.1);
}

body.dark-mode .sidebar-link.active::before {
  background-color: #ff6b6b;
}

body.dark-mode .sidebar-footer {
  border-top-color: #2a2a3e;
}

body.dark-mode .sidebar-user-name {
  color: #ddd;
}

body.dark-mode .header {
  background: #1e1e30;
  border-bottom-color: #2a2a3e;
}

body.dark-mode .header-title {
  color: #e0e0e0;
}

body.dark-mode .header-toggle {
  color: #888;
}

body.dark-mode .header-toggle:hover {
  background: #2a2a3e;
  color: #ddd;
}

body.dark-mode .header-workshop {
  background: #2a2a3e;
  color: #aaa;
}

/* Karty i tabele */
body.dark-mode .card {
  background: #1e1e30;
  border-color: #2a2a3e;
}

body.dark-mode .data-table th {
  background: #252540;
  color: #aaa;
  border-bottom-color: #2a2a3e;
}

body.dark-mode .data-table td {
  border-bottom-color: #2a2a3e;
  color: #ccc;
}

body.dark-mode .data-table tr:hover td {
  background: #252540;
}

body.dark-mode .table-toolbar {
  border-bottom-color: #2a2a3e;
}

body.dark-mode .table-pagination {
  border-top-color: #2a2a3e;
}

/* Formularz */
body.dark-mode .form-input,
body.dark-mode .form-select,
body.dark-mode textarea.form-input {
  background: #252540;
  border-color: #3a3a50;
  color: #e0e0e0;
}

body.dark-mode .form-input:focus,
body.dark-mode .form-select:focus,
body.dark-mode textarea.form-input:focus {
  border-color: #ff6b6b;
}

body.dark-mode .form-label {
  color: #aaa;
}

/* Filtry */
body.dark-mode .filter-chip {
  background: #252540;
  border-color: #3a3a50;
  color: #aaa;
}

body.dark-mode .filter-chip:hover {
  background: #2a2a3e;
}

body.dark-mode .filter-chip.active {
  background: rgba(255, 107, 107, 0.12);
  border-color: #ff6b6b;
  color: #ff6b6b;
}

/* Modal */
body.dark-mode .modal-overlay {
  background: rgba(0, 0, 0, 0.6);
}

body.dark-mode .modal {
  background: #1e1e30;
  border: 1px solid #2a2a3e;
}

body.dark-mode .modal-header {
  border-bottom-color: #2a2a3e;
  color: #e0e0e0;
}

body.dark-mode .modal-footer {
  border-top-color: #2a2a3e;
}

/* Toast */
body.dark-mode .toast {
  background: #252540;
  border-color: #3a3a50;
  color: #e0e0e0;
}

/* Login */
body.dark-mode .login-card {
  background: #1e1e30;
  color: #e0e0e0;
}

body.dark-mode .login-title {
  color: #e0e0e0;
}

body.dark-mode .login-subtitle {
  color: #888;
}

/* Status badge */
body.dark-mode .status-badge {
  opacity: 0.9;
}

/* Stat cards */
body.dark-mode .stat-card {
  background: #1e1e30;
  border-color: #2a2a3e;
}

body.dark-mode .stat-value {
  color: #e0e0e0;
}

body.dark-mode .stat-label {
  color: #888;
}

/* Empty state */
body.dark-mode .empty-state-title {
  color: #ccc;
}

body.dark-mode .empty-state-description {
  color: #888;
}

/* Scrollbar */
body.dark-mode ::-webkit-scrollbar-track {
  background: #1a1a2e;
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background: #3a3a50;
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
  background: #4a4a60;
}

/* Backdrop */
body.dark-mode .sidebar-backdrop.active {
  background: rgba(0, 0, 0, 0.6);
}