/* Mobile layout — loaded after theme CSS so it wins on small screens */

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

/* ------------------------------------------------------------------ */
/* Tablet and below (768px)                                           */
/* ------------------------------------------------------------------ */

@media (max-width: 768px) {
  :root {
    --space-xl: 1.5rem;
  }

  .container {
    width: min(100% - 1.25rem, var(--max-width));
  }

  main {
    padding: var(--space-lg) 0;
  }

  .header-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
  }

  .logo {
    flex: 1 1 auto;
    min-width: 0;
    font-size: 1rem;
    line-height: 1.25;
    word-break: break-word;
  }

  .nav {
    flex: 1 1 100%;
    gap: var(--space-sm);
    align-items: flex-start;
  }

  .nav > a,
  .nav .nav-bell-link,
  .nav .link-button {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
  }

  .nav-dropdown-action {
    min-height: 2.75rem;
    display: flex;
    align-items: center;
  }

  .search-bar .button.secondary {
    text-align: center;
  }

  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown-trigger {
    width: 100%;
    justify-content: space-between;
    padding: 0.35rem 0;
    min-height: 2.75rem;
  }

  .nav-account-trigger {
    justify-content: flex-start;
  }

  .nav-dropdown-menu {
    position: static;
    width: 100%;
    min-width: 0;
    margin-top: var(--space-xs);
    box-shadow: none;
  }

  .nav-dropdown.open .nav-dropdown-menu {
    display: flex;
  }

  .nav-dropdown-item {
    padding: 0.75rem;
    min-height: 2.75rem;
    display: flex;
    align-items: center;
  }

  .search-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .search-bar input[type="search"] {
    flex: 1 1 auto;
    width: 100%;
    min-height: 2.75rem;
  }

  .search-bar button,
  .search-bar .button {
    width: 100%;
    min-height: 2.75rem;
  }

  .book-detail,
  .add-book-layout,
  .preview-card {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .book-detail-cover img,
  .book-detail-cover .cover-placeholder {
    max-width: 220px;
    margin-inline: auto;
  }

  .book-detail-info {
    padding: var(--space-md);
  }

  .cover-placeholder.large {
    min-height: 220px;
    width: 100%;
    max-width: 220px;
    margin-inline: auto;
  }

  .form {
    max-width: none;
  }

  .auth-card,
  .panel,
  .account-card,
  .register-card {
    max-width: none;
    padding: var(--space-lg);
  }

  .admin-header {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-header h1 {
    font-size: 1.35rem;
  }

  .admin-actions {
    flex-wrap: wrap;
  }

  .admin-actions .button {
    flex: 1 1 auto;
    text-align: center;
  }

  /* All admin tables: card layout on small screens */
  .admin-table-wrap {
    overflow-x: visible;
    margin-inline: 0;
    padding-inline: 0;
  }

  /* Generic admin tables (library, users, etc.) */
  .admin-table:not(.admin-dashboard-table) {
    display: block;
    min-width: 0 !important;
    width: 100%;
    border: none;
    background: transparent;
  }

  .admin-table:not(.admin-dashboard-table) thead {
    display: none;
  }

  .admin-table:not(.admin-dashboard-table) tbody {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .admin-table:not(.admin-dashboard-table) tbody tr {
    display: block;
    padding: var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    border-bottom: none;
  }

  .admin-table:not(.admin-dashboard-table) tbody td {
    display: grid;
    grid-template-columns: minmax(5rem, 6.5rem) minmax(0, 1fr);
    gap: var(--space-sm);
    align-items: start;
    padding: 0.45rem 0;
    border: none;
    font-size: 0.9rem;
    text-align: left;
    overflow-wrap: anywhere;
  }

  .admin-table:not(.admin-dashboard-table) tbody td[data-label]::before {
    content: attr(data-label);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    line-height: 1.35;
  }

  .admin-table:not(.admin-dashboard-table) tbody td.actions-cell {
    display: block;
    padding-top: var(--space-sm);
    margin-top: var(--space-xs);
    border-top: 1px solid var(--border);
  }

  .admin-table:not(.admin-dashboard-table) tbody td.actions-cell::before {
    display: block;
    margin-bottom: 0.35rem;
  }

  .admin-table:not(.admin-dashboard-table) .actions-cell .inline-form {
    display: flex;
    width: 100%;
    margin: 0.25rem 0 0;
  }

  .admin-table:not(.admin-dashboard-table) .actions-cell .button,
  .admin-table:not(.admin-dashboard-table) .actions-cell .button.small,
  .admin-table:not(.admin-dashboard-table) .actions-cell .danger-button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .admin-table:not(.admin-dashboard-table) tbody td[data-label="Status"] {
    align-items: center;
  }

  /* Admin dashboard: cover + book grid card */
  .admin-dashboard-wrap {
    overflow-x: visible;
  }

  .admin-dashboard-table {
    display: block;
    min-width: 0 !important;
    width: 100%;
    border: none;
    background: transparent;
  }

  .admin-dashboard-table thead {
    display: none;
  }

  .admin-dashboard-table tbody {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .admin-dashboard-table tbody tr {
    display: grid;
    grid-template-columns: 3.75rem minmax(0, 1fr);
    grid-template-areas:
      "cover book"
      "qty qty"
      "actions actions";
    gap: var(--space-sm) var(--space-md);
    padding: var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    border-bottom: none;
  }

  .admin-dashboard-table .col-cover {
    grid-area: cover;
    width: auto;
    padding: 0;
  }

  .admin-dashboard-table .col-book {
    grid-area: book;
    min-width: 0;
    padding: 0;
  }

  .admin-dashboard-table .col-qty {
    grid-area: qty;
    width: auto;
    min-width: 0;
    padding: var(--space-sm) 0 0;
    border-top: 1px solid var(--border);
  }

  .admin-dashboard-table .col-qty::before {
    content: "Quantity";
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin-bottom: 0.35rem;
  }

  .admin-dashboard-table .col-actions {
    grid-area: actions;
    width: auto;
    min-width: 0;
    padding: 0;
  }

  .admin-dashboard-table .col-actions::before {
    content: "Actions";
    display: block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin-bottom: 0.35rem;
  }

  .admin-dashboard-table .table-cover {
    width: 3.75rem;
    height: auto;
    display: block;
    border-radius: 4px;
  }

  .admin-dashboard-table .table-cover-placeholder {
    width: 3.75rem;
    line-height: 3.75rem;
  }

  .admin-book-cell {
    max-width: none;
    min-width: 0;
  }

  .admin-dashboard-actions {
    width: 100%;
    align-items: stretch;
  }

  .admin-dashboard-actions .inline-form,
  .admin-dashboard-actions .upload-cover-form {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .admin-dashboard-actions .link-button,
  .admin-dashboard-actions button[type="submit"] {
    width: 100%;
    min-height: 2.5rem;
    text-align: center;
    justify-content: center;
  }

  .admin-dashboard-table .actions-cell .inline-form {
    display: flex;
    margin: 0;
    width: 100%;
  }

  .admin-table th,
  .admin-table td {
    font-size: 0.85rem;
  }

  .admin-dashboard-table th,
  .admin-dashboard-table td {
    padding: 0;
  }

  .admin-table:not(.admin-dashboard-table) th,
  .admin-table:not(.admin-dashboard-table) td {
    padding: 0.45rem 0;
  }

  .actions-cell {
    white-space: normal;
  }

  .button.small,
  .danger-button.small {
    min-height: 2.5rem;
    padding: 0.45rem 0.7rem;
  }

  .inline-qty-form {
    flex-wrap: nowrap;
    width: 100%;
  }

  .inline-qty-form .qty-input {
    flex: 1;
    min-width: 0;
    width: auto;
    min-height: 2.5rem;
  }

  .inline-qty-form .button.small {
    flex-shrink: 0;
  }

  .upload-cover-form {
    width: 100%;
  }

  .upload-cover-form input[type="file"] {
    max-width: none;
    flex: 1 1 8rem;
  }

  .filter-tabs {
    gap: 0.35rem;
  }

  .filter-tab {
    flex: 1 1 auto;
    text-align: center;
    min-height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .notification-item {
    flex-direction: column;
    align-items: stretch;
  }

  .notification-actions {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
  }

  .library-action-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .library-action-buttons form,
  .library-action-buttons .button {
    width: 100%;
  }

  .library-action-buttons .button {
    display: block;
    text-align: center;
  }

  .theme-form .theme-grid {
    grid-template-columns: 1fr;
  }

  .form-row,
  .form-row-3 {
    grid-template-columns: 1fr;
  }

  .register-card {
    max-width: none;
  }

  .error-page h1 {
    font-size: 3rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .scanner-region {
    max-width: none;
  }

  .preview-card {
    text-align: left;
  }

  .preview-card .book-cover,
  .preview-card img {
    margin-inline: auto;
  }

  .isbn-form,
  .manual-form {
    max-width: none;
  }

  .admin-table td,
  .admin-table th {
    overflow-wrap: anywhere;
  }

  .detail-list {
    grid-template-columns: 1fr;
    gap: 0.15rem var(--space-sm);
  }

  .detail-list dt {
    margin-top: var(--space-sm);
  }

  .detail-list dt:first-child {
    margin-top: 0;
  }

  .detail-list dd {
    margin-bottom: var(--space-xs);
  }

  /* Theme-safe: avoid tilted cards and fixed backgrounds on small screens */
  body {
    background-attachment: scroll;
  }

  body::before {
    position: absolute;
  }

  [data-theme] .book-card,
  [data-theme] .book-card:nth-child(3n),
  [data-theme] .book-card:nth-child(3n+2) {
    transform: none;
  }

  [data-theme] .book-card:hover {
    transform: none;
  }

  [data-theme] .button:hover,
  [data-theme] .search-bar button:hover {
    transform: none;
  }
}

/* ------------------------------------------------------------------ */
/* Phone (480px)                                                      */
/* ------------------------------------------------------------------ */

@media (max-width: 480px) {
  .container {
    width: min(100% - 1rem, var(--max-width));
  }

  .book-grid {
    grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
    gap: var(--space-md);
  }

  .book-info h2 {
    font-size: 0.95rem;
  }

  .button,
  button.button,
  .search-bar button,
  .form .button {
    min-height: 2.75rem;
  }

  .checkbox-label {
    align-items: flex-start;
  }

  .checkbox-field .field-hint {
    padding-left: 0;
  }

  .library-list li {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    margin-bottom: var(--space-sm);
  }

  .library-list .inline-form {
    display: block;
    width: 100%;
  }

  .library-list .inline-form .button {
    width: 100%;
  }

  .panel-subheading,
  .section-heading {
    font-size: 1rem;
  }

  /* Theme-specific mobile tweaks */
  [data-theme="zine-halftone"] .logo {
    display: inline-block;
    max-width: 100%;
    font-size: 0.95rem;
    padding: 0.2rem 0.35rem;
    box-shadow: 2px 2px 0 #111;
  }

  [data-theme="pop-art"] .site-header .logo,
  [data-theme="pop-art"] h1,
  [data-theme="pop-art"] .hero h1 {
    text-shadow: 2px 2px 0 #1d3557;
  }

  [data-theme="de-stijl"] .site-header::after {
    height: 4px;
  }

  [data-theme="bauhaus"] .site-header,
  [data-theme="pop-art"] .site-header,
  [data-theme="riot-grrrl"] .site-header {
    padding-inline: 0;
  }
}

/* ------------------------------------------------------------------ */
/* Touch devices                                                      */
/* ------------------------------------------------------------------ */

@media (hover: none) and (pointer: coarse) {
  .book-card:hover {
    transform: none;
  }

  .button:hover,
  .search-bar button:hover {
    filter: none;
  }

  [data-theme="zine-halftone"] main a:not(.nav-dropdown-item):hover {
    box-shadow: none;
  }
}

@media (max-width: 768px) {
  .profile-avatar-field,
  .user-profile-identity {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Prevent decorative layers from forcing horizontal scroll */
.site-header,
main,
.site-footer,
.panel,
.book-card,
.auth-card {
  max-width: 100%;
}