/* JF412J · mobile full-width responsive pass
   Goal: no document-level horizontal overflow, compact navigation/filter controls,
   one-column media sized to the phone viewport, and safe internal scrolling for wide controls. */

@media (max-width: 760px) {
  html, body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
  }
  body { background: var(--cream); }
  main { width: 100%; max-width: 100%; overflow-x: hidden; }
  :where(main, section, article, div, form, fieldset, nav, label) { min-width: 0; }
  img, video, audio, canvas, svg, iframe { max-width: 100%; }
  input, select, textarea, button { max-width: 100%; }
  p, h1, h2, h3, h4, b, small, span, a { overflow-wrap: anywhere; }

  /* Compact, single-row app header. Navigation remains fully accessible by horizontal swipe. */
  body > header {
    min-height: 58px;
    height: auto;
    padding: 7px max(8px, env(safe-area-inset-right)) 7px max(8px, env(safe-area-inset-left));
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    align-items: center;
    gap: 6px;
  }
  body > header .logo {
    width: 40px;
    min-width: 40px;
    font-size: 0;
    line-height: 1;
  }
  body > header .logo span {
    width: 38px;
    height: 38px;
    margin: 0;
    font-size: 1rem;
  }
  body > header nav {
    width: 100%;
    max-width: 100%;
    display: flex;
    flex-wrap: nowrap;
    justify-content: flex-start;
    align-items: center;
    gap: 3px;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    padding: 1px 1px 2px;
  }
  body > header nav::-webkit-scrollbar { display: none; }
  body > header nav > a,
  body > header nav > form,
  body > header nav > form > button { flex: 0 0 auto; }
  body > header nav > a:not(.primary),
  body > header nav .link {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    padding: 8px 7px;
    font-size: .79rem;
    border-radius: 999px;
  }
  body > header nav .primary {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    padding: 9px 11px;
    font-size: .8rem;
  }

  /* Make every main page use the real phone width instead of desktop gutters. */
  .topline,
  .form-page,
  .home-widgets,
  .calendar-layout,
  .calendar-list,
  .memory-location-search,
  .tag-section,
  .feed,
  .feed-load-zone,
  .memory-archive-jump,
  .profile-page,
  .music-library-hero,
  .music-source-panel,
  .music-filter-panel,
  .music-results {
    width: calc(100% - 16px) !important;
    max-width: none !important;
    margin-left: auto !important;
    margin-right: auto !important;
  }

  .topline {
    margin-top: 16px;
    margin-bottom: 12px;
    gap: 10px;
  }
  .topline h1, .form-page h1 {
    font-size: clamp(1.9rem, 9vw, 2.7rem);
  }
  .home-title .subtitle { margin: 4px 0 0; font-size: .88rem; line-height: 1.5; }
  .feed-find-tools { gap: 7px; }
  .feed-find-tools .search { display: grid; grid-template-columns: minmax(0,1fr) auto; width: 100%; }
  .feed-find-tools .search input { width: 100%; min-width: 0; }
  .feed-find-tools .search button { padding-inline: 14px; }

  /* Dashboard cards: one clean column without forcing a wider document. */
  .home-widgets, .calendar-layout { grid-template-columns: minmax(0,1fr) !important; gap: 10px; }
  .home-widgets { margin-top: 0 !important; margin-bottom: 14px !important; }
  .month-card, .todo-card, .panel, .editor fieldset, .calendar-list article {
    max-width: 100%;
    padding: 14px;
    border-radius: 16px;
  }
  .widget-head h2 { font-size: 1.12rem; margin-bottom: 9px; }
  .mini-calendar { gap: 2px; }
  .mini-calendar .dow { font-size: .68rem; padding: 3px; }
  .mini-calendar .day, .mini-calendar .blank { min-height: 42px; padding: 5px; border-radius: 9px; }
  .event-editor { position: static; top: auto; }
  .todo-quick { grid-template-columns: minmax(0,1fr) auto; }

  /* Memory index stays useful, but does not consume five full mobile rows. */
  .memory-location-search { margin-top: 10px !important; margin-bottom: 8px !important; padding: 12px; border-radius: 16px; }
  .memory-filter-heading { margin-bottom: 10px; }
  .memory-filter-heading h2 { font-size: 1.12rem; }
  .memory-filter-heading > p { display: none; }
  .memory-filter-grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr) !important;
    gap: 7px;
  }
  .memory-filter-grid label { font-size: .7rem; gap: 4px; }
  .memory-filter-grid input, .memory-filter-grid select { min-height: 40px; padding: 8px 9px; border-radius: 10px; font-size: .82rem; }
  .memory-filter-actions {
    grid-column: 1 / -1 !important;
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
  .memory-filter-actions a, .memory-filter-actions button { min-height: 40px; padding: 9px 8px; font-size: .78rem; text-align: center; }

  /* Hashtags: one compact horizontal selector row. */
  .tag-section {
    margin-top: 7px !important;
    margin-bottom: 9px !important;
    padding: 6px 7px;
    min-height: 46px;
    display: grid;
    grid-template-columns: auto minmax(0,1fr);
    align-items: center;
    gap: 6px;
    overflow: hidden;
    border-radius: 14px;
  }
  .tag-section-label {
    margin: 0;
    padding: 0 2px;
    font-size: .62rem;
    line-height: 1.15;
    letter-spacing: .03em;
    white-space: nowrap;
  }
  .tag-section-label small { display: none; }
  .tag-section .tagbar {
    width: auto !important;
    max-width: 100%;
    margin: 0 !important;
    padding: 1px 0 2px !important;
    display: flex !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    align-items: center;
    gap: 5px;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .tag-section .tagbar::-webkit-scrollbar { display: none; }
  .tag-section .tag-category { display: none !important; }
  .tag-section .tagbar a {
    flex: 0 0 auto;
    white-space: nowrap;
    font-size: .7rem;
    padding: 6px 8px;
    line-height: 1;
  }

  /* Year/month jump: sticky, but only one compact row above the feed. */
  .memory-archive-jump {
    width: calc(100% - 12px) !important;
    margin-top: 0 !important;
    margin-bottom: 7px !important;
    padding: 0 !important;
  }
  .memory-archive-jump-inner {
    display: block !important;
    padding: 6px 7px;
    border-radius: 13px;
  }
  .memory-archive-jump-title { display: none !important; }
  .memory-archive-jump-form {
    display: flex !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    gap: 5px;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    margin: 0;
    padding: 0;
  }
  .memory-archive-jump-form::-webkit-scrollbar { display: none; }
  .memory-archive-jump-form label { flex: 0 0 auto; display: block; }
  .memory-archive-jump-form label span { display: none; }
  .memory-archive-jump-form select {
    width: 104px !important;
    min-width: 104px !important;
    min-height: 38px;
    padding: 7px 27px 7px 8px;
    font-size: .78rem;
  }
  .memory-archive-jump-form button, .memory-archive-latest {
    flex: 0 0 auto;
    min-height: 38px;
    padding: 8px 10px;
    font-size: .75rem;
    text-align: center;
  }

  /* Feed: nearly edge-to-edge and never wider than the phone. */
  .feed {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 6px;
    gap: 12px;
  }
  .feed > [data-feed-items] { min-width: 0; width: 100%; display: grid; gap: 12px; }
  .post {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    padding: 13px 8px 14px;
    border-radius: 16px;
    overflow: hidden;
  }
  .post-head { padding-right: 42px; min-width: 0; }
  .post-head > div { min-width: 0; }
  .post-head small { white-space: normal; }
  .post-menu-button { right: 8px; top: 8px; width: 38px; height: 38px; }
  .post h2 { font-size: 1.35rem; line-height: 1.3; margin: 14px 0 7px; }
  .post .body { font-size: .91rem; line-height: 1.62; }
  .visibility-badge { margin-top: 9px; }

  /* Media is one phone-width column. Pixel dimensions of the cached thumbnail never dictate layout size. */
  .media-grid {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    grid-template-columns: minmax(0,1fr) !important;
    gap: 6px !important;
    margin: 10px 0 !important;
    padding: 4px !important;
    overflow: hidden;
  }
  .media-grid > *,
  .media-grid .quick-media,
  .media-grid .photo-with-caption,
  .media-grid .photo-with-caption > a {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    justify-self: stretch;
  }
  .media-grid img,
  .media-grid .photo-with-caption > img,
  .media-grid video {
    display: block;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    max-height: none !important;
    object-fit: contain !important;
    margin: 0 !important;
    border-radius: 10px;
  }
  .media-grid video { background: #211f1c; }
  .photo-with-caption figcaption { padding: 8px 10px 9px; font-size: .82rem; }
  .nas-post-media-more { margin: 8px 0 10px; }
  .nas-post-media-more .media-more-button { width: 100%; min-width: 0; padding: 10px 8px; font-size: .78rem; }

  .post-location-index, .tags, .actions { max-width: 100%; }
  .actions { flex-wrap: wrap; gap: 6px; margin: 12px 0 8px; }
  .actions form { margin: 0; }
  .actions button { min-height: 38px; }
  .comment { flex-wrap: wrap; align-items: flex-start; }
  .comment .inline-edit { flex: 1 1 100%; min-width: 0; }
  .comment-form { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 6px; }
  .comment-form input { min-width: 0; }

  /* Forms, profile, admin, calendar and music: full mobile width with internal scrolling only where needed. */
  .form-page { margin-top: 16px !important; margin-bottom: 26px !important; }
  .editor, .stack, .admin-grid, .profile-layout, .member-permission-form { min-width: 0; }
  .editor fieldset, .panel { overflow: hidden; }
  .grid, .admin-grid, .member-permission-form, .access-cards, .member-permission-grid { grid-template-columns: minmax(0,1fr) !important; }
  .quick-edit-actions, .page-actions, .calendar-actions { flex-wrap: wrap; }
  .quick-edit-actions > *, .page-actions > * { max-width: 100%; }
  .permission-table, .share-log-table, .band-log-table { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nas-auto-page, .nas-auto-page .panel { max-width: 100%; }
  .nas-stat-grid { grid-template-columns: repeat(2,minmax(0,1fr)) !important; gap: 7px !important; }
  .nas-stat-grid article { min-width: 0; padding: 10px !important; }
  .preview-prebuild-stats { grid-template-columns: repeat(2,minmax(0,1fr)) !important; gap: 7px; }
  .preview-prebuild-form { grid-template-columns: minmax(0,1fr) minmax(0,1fr) !important; }
  .nas-root-row, .nas-group-grid, .nas-settings-grid, .nas-filter-form { grid-template-columns: minmax(0,1fr) !important; }
  .nas-section-actions, .nas-bulk-actions, .nas-selection-toolbar { max-width: 100%; }

  .music-library-hero, .music-source-panel, .music-filter-panel, .music-results { min-width: 0; }
  .music-library-stats { flex-wrap: wrap; }
  .music-library-stats > div { min-width: 0; flex: 1 1 120px; }
  .music-filter-form { grid-template-columns: minmax(0,1fr) !important; }
  .music-album-grid { grid-template-columns: minmax(0,1fr) !important; }
  .music-track-row { max-width: 100%; min-width: 0; }

  footer { padding: 24px 10px; }
}

@media (max-width: 430px) {
  body > header nav > a:not(.primary), body > header nav .link { padding-inline: 6px; font-size: .76rem; }
  body > header nav .primary { padding-inline: 10px; }
  .topline, .form-page, .home-widgets, .calendar-layout, .calendar-list,
  .memory-location-search, .tag-section, .profile-page, .music-library-hero,
  .music-source-panel, .music-filter-panel, .music-results { width: calc(100% - 12px) !important; }
  .memory-filter-grid { gap: 5px; }
  .memory-filter-grid input, .memory-filter-grid select { font-size: .78rem; padding-inline: 7px; }
  .tag-section { grid-template-columns: 54px minmax(0,1fr); }
  .tag-section-label { white-space: normal; text-align: center; }
  .feed { padding-inline: 4px; }
  .post { padding-inline: 7px; }
  .memory-archive-jump-form select { width: 96px !important; min-width: 96px !important; }
}

@media (max-width: 430px) {
  .tag-section-label { font-size: 0; width: 42px; white-space: nowrap; }
  .tag-section-label::before { content: '해시태그'; font-size: .6rem; font-weight: 800; letter-spacing: 0; }
  .memory-archive-jump-form select { width: 92px !important; min-width: 92px !important; }
  .memory-archive-jump-form button, .memory-archive-latest { padding-inline: 7px; font-size: .72rem; }
}