/* ============================================================
   FileRise — Material You (Pastel) Redesign
   Ported from design-previews/07-material.html
   Loaded LAST so it overrides bootstrap + styles.css.
   Theme is driven by [data-theme="light"|"dark"] (set by app).
   ============================================================ */

/* ============ DESIGN TOKENS ============ */
:root{
  --r-xs:8px; --r-sm:12px; --r-md:16px; --r-lg:20px; --r-xl:28px; --r-full:999px;
  --ease:cubic-bezier(.2,0,0,1);
  /* PASTEL ACCENT FAMILIES (icons, chips, folders) */
  --pl-lav:#d6c8ff; --pl-lav-on:#4a2f8f;  --pl-lav-c:#ede7ff;
  --pl-mint:#bdeccb; --pl-mint-on:#0d6b3f; --pl-mint-c:#e2f7e9;
  --pl-peach:#ffd6c2; --pl-peach-on:#a5430f;--pl-peach-c:#ffe9df;
  --pl-sky:#c6e2ff; --pl-sky-on:#0b4f9e;   --pl-sky-c:#e3f1ff;
  --pl-rose:#ffd0e0; --pl-rose-on:#b01457; --pl-rose-c:#ffe4ef;
  --pl-butter:#ffe6a8;--pl-butter-on:#8a5a00;--pl-butter-c:#fff3d4;
  --pl-aqua:#bdeee9; --pl-aqua-on:#0a6b63;  --pl-aqua-c:#e1f7f5;
  --pl-lilac:#ecceff;--pl-lilac-on:#7a23b8; --pl-lilac-c:#f6e6ff;
}
/* ---- LIGHT (also the default when no data-theme is set yet) ---- */
:root,
:root[data-theme="light"]{
  --bg:#fdf7ff; --surface:#fffbff; --surf1:#f7f1fa; --surf2:#f1ebf6; --surf3:#ece4f2;
  --ink:#1d1b20; --muted:#5d5a66; --faint:#8b8794; --outline:#d6cfdd;
  --primary:#7a5cff; --on-primary:#ffffff; --primary-c:#eadfff; --on-primary-c:#26076e;
  --shadow:0 1px 3px rgba(60,40,90,.10),0 4px 14px rgba(60,40,90,.06);
  --shadow-lg:0 8px 30px rgba(60,40,90,.16);
  --scrim:rgba(30,20,45,.42);
}
/* ---- DARK (pastel-on-dark) ---- */
:root[data-theme="dark"]{
  --bg:#131017; --surface:#1b1820; --surf1:#221e2a; --surf2:#2a2533; --surf3:#332d3e;
  --ink:#ece5f3; --muted:#b6aec4; --faint:#8a8398; --outline:#3a3447;
  --primary:#cdbcff; --on-primary:#33155c; --primary-c:#3d2e6b; --on-primary-c:#eadfff;
  --shadow:0 1px 3px rgba(0,0,0,.5),0 6px 18px rgba(0,0,0,.4);
  --shadow-lg:0 12px 40px rgba(0,0,0,.6);
  --scrim:rgba(0,0,0,.6);
  --pl-lav-c:#2e2747; --pl-mint-c:#16321f; --pl-peach-c:#3a2316; --pl-sky-c:#16273d;
  --pl-rose-c:#3a1626; --pl-butter-c:#332a12; --pl-aqua-c:#0f2e2b; --pl-lilac-c:#2c1a3a;
  --pl-lav-on:#d6c8ff; --pl-mint-on:#bdeccb; --pl-peach-on:#ffd6c2; --pl-sky-on:#c6e2ff;
  --pl-rose-on:#ffd0e0; --pl-butter-on:#ffe6a8; --pl-aqua-on:#bdeee9; --pl-lilac-on:#ecceff;
}
/* fallback when no data-theme attr yet */
:root:not([data-theme="dark"]){color-scheme:light}
:root[data-theme="dark"]{color-scheme:dark}

/* Pages with NO explicit data-theme (share / portal views) follow the OS
   preference, so material.css surfaces match share.css's own
   @media (prefers-color-scheme: dark) styling — fixes "dark theme, white bg". */
@media (prefers-color-scheme: dark){
  :root:not([data-theme]){
    --bg:#131017; --surface:#1b1820; --surf1:#221e2a; --surf2:#2a2533; --surf3:#332d3e;
    --ink:#ece5f3; --muted:#b6aec4; --faint:#8a8398; --outline:#3a3447;
    --primary:#cdbcff; --on-primary:#33155c; --primary-c:#3d2e6b; --on-primary-c:#eadfff;
    --shadow:0 1px 3px rgba(0,0,0,.5),0 6px 18px rgba(0,0,0,.4);
    --shadow-lg:0 12px 40px rgba(0,0,0,.6); --scrim:rgba(0,0,0,.6);
    --pl-lav-c:#2e2747; --pl-mint-c:#16321f; --pl-peach-c:#3a2316; --pl-sky-c:#16273d;
    --pl-rose-c:#3a1626; --pl-butter-c:#332a12; --pl-aqua-c:#0f2e2b; --pl-lilac-c:#2c1a3a;
    --pl-lav-on:#d6c8ff; --pl-mint-on:#bdeccb; --pl-peach-on:#ffd6c2; --pl-sky-on:#c6e2ff;
    --pl-rose-on:#ffd0e0; --pl-butter-on:#ffe6a8; --pl-aqua-on:#bdeee9; --pl-lilac-on:#ecceff;
    color-scheme:dark;
  }
}

/* ============ BASE OVERRIDES ============ */
/* Share/portal pages keep their own background (share.css gradients, OS-dark aware),
   so we don't force the body bg/color there — only the main app body. */
body:not(.fr-share-body):not(.portal-body){
  background:var(--bg)!important;color:var(--ink)!important;
}
body{
  font-family:'Roboto',system-ui,-apple-system,'Segoe UI',sans-serif!important;
  -webkit-font-smoothing:antialiased;
  transition:background .3s var(--ease),color .3s var(--ease);
}
::selection{background:var(--primary-c);color:var(--on-primary-c)}
#loadingOverlay{background:var(--bg)!important}

/* ============ MOBILE CHROME default hidden ============ */
.fr-appbar,.fr-bottomnav,.fr-fab-mobile,.fr-scrim{display:none}

/* ============ SHELL GRID (authenticated app) ============ */
/* User-adjustable UI scale (set via pretheme.js / shell.js, persisted). */
.shell{zoom:var(--fr-ui-scale,1)}
@supports not (zoom:1){
  /* Fallback for engines without `zoom`: scale via transform on the content column */
  .shell .main{transform:scale(var(--fr-ui-scale,1));transform-origin:top left}
}
body.authed .header-container{display:none!important}   /* old top header replaced by shell */
body.authed .main-wrapper{display:block!important;gap:0!important}   /* shell handles layout */
body.authed .main-column{width:100%}
body.authed .main .container-fluid,
body.authed .main .container{max-width:100%!important;margin:0!important;padding:0!important}
.shell{display:grid;grid-template-columns:96px var(--drawer-width,300px) 1fr;height:100vh;height:100dvh;overflow:hidden;align-items:stretch;position:relative}
.shell:has(.drawer.collapsed){grid-template-columns:96px 46px 1fr}   /* collapsed = thin strip */

/* ---- NAV RAIL (desktop) ---- */
.rail{background:var(--bg);display:flex;flex-direction:column;align-items:center;gap:4px;padding:16px 0;overflow:auto;
  position:sticky;top:0;height:100vh;height:100dvh}
.rail .fab{width:60px;height:60px;border-radius:var(--r-md);background:var(--primary-c);color:var(--on-primary-c);
  display:grid;place-items:center;margin-bottom:18px;box-shadow:var(--shadow);cursor:pointer;border:none;transition:.2s var(--ease)}
.rail .fab:hover{box-shadow:var(--shadow-lg);transform:translateY(-1px);filter:brightness(1.03)}
.rail .fab:active{transform:scale(.96)}
.rail-i{display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer;width:100%;padding:6px 0;color:var(--muted);
  border:none;background:none;transition:.18s;font-family:inherit}
.rail-i .pill{width:56px;height:32px;border-radius:var(--r-full);display:grid;place-items:center;transition:.2s var(--ease)}
.rail-i .pill .material-icons{font-size:22px}
.rail-i:hover .pill{background:var(--surf2)}
.rail-i.on{color:var(--ink)}
.rail-i.on .pill{background:var(--primary-c);color:var(--on-primary-c)}
.rail-i span.lbl{font-size:12px;font-weight:500}

/* ---- DRAWER (folders / nav) ---- */
.drawer{background:var(--surf1);border-radius:0 var(--r-xl) var(--r-xl) 0;padding:18px 12px;position:relative;
  display:flex;flex-direction:column;overflow:auto;transition:transform .32s var(--ease);min-width:0}
.drawer .dtop{display:flex;align-items:center;justify-content:space-between;padding:6px 10px 12px;gap:4px}
/* resize handle (desktop only) — pinned to the drawer/main boundary at shell level */
.drawer-resize{position:absolute;top:0;bottom:0;left:calc(96px + var(--drawer-width,300px));width:9px;transform:translateX(-5px);
  cursor:col-resize;z-index:30;background:transparent;transition:background .15s}
.drawer-resize:hover{background:color-mix(in srgb,var(--primary) 35%,transparent)}
.shell:has(.drawer.collapsed) .drawer-resize{display:none}
/* collapse toggle button */
.dtoggle{background:none;border:none;color:var(--muted);cursor:pointer;width:34px;height:34px;border-radius:var(--r-full);display:grid;place-items:center;flex-shrink:0}
.dtoggle:hover{background:var(--surf2);color:var(--ink)}
/* collapsed state: hide content, keep a thin strip with just the expand toggle */
.drawer.collapsed{padding:14px 4px;overflow:hidden}
.drawer.collapsed #mainOperations,.drawer.collapsed .fr-storage,.drawer.collapsed .dtitle,.drawer.collapsed .drawer-resize{display:none}
.drawer.collapsed .dtop{justify-content:center;padding:6px 0}
.drawer.collapsed .dtoggle .material-icons{transform:rotate(180deg)}
@media (max-width:1080px){ .drawer-resize{display:none} .dtoggle{display:none} }  /* off-canvas: no resize/collapse */

/* ---- FULL-SCREEN DRAG-AND-DROP UPLOAD OVERLAY ---- */
.fr-drop-overlay{position:fixed;inset:0;z-index:10070;display:none;align-items:center;justify-content:center;
  background:color-mix(in srgb,var(--primary-c) 70%,transparent);backdrop-filter:blur(2px)}
.fr-drop-overlay.show{display:flex}
.fr-drop-overlay .box{pointer-events:none;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:40px 56px;border-radius:var(--r-xl);border:3px dashed var(--primary);background:var(--surface);
  color:var(--ink);box-shadow:var(--shadow-lg);font-size:18px;font-weight:600}
.fr-drop-overlay .material-icons{font-size:56px;color:var(--primary)}

/* ---- USER (avatar) MENU ---- */
.fr-usermenu{padding:8px;width:auto;min-width:200px}
.fr-um-item{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:10px 12px;border:none;background:none;
  border-radius:var(--r-sm);cursor:pointer;color:var(--ink);font-size:14px;font-family:inherit}
.fr-um-item:hover{background:var(--surf2)}
.fr-um-item .material-icons{font-size:20px;color:var(--muted)}
.fr-um-item[hidden]{display:none}
.drawer .dtitle{font-size:22px;font-weight:500;color:var(--ink)}
.drawer .dclose{display:none;background:none;border:none;color:var(--muted);cursor:pointer;width:40px;height:40px;border-radius:var(--r-full)}
.drawer .dclose:hover{background:var(--surf2)}
.drawer .grp{font-size:11px;color:var(--faint);font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:14px 12px 6px}

/* folder card relocated into drawer: strip its bootstrap chrome */
.drawer #folderManagementCard,
.drawer #uploadCard{box-shadow:none!important;border:none!important;background:transparent!important;border-radius:var(--r-lg);width:100%!important}
.drawer #folderManagementCard .card-header,
.drawer #uploadCard .card-header{background:transparent!important;border:none!important;color:var(--muted)!important;
  font-size:11px!important;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:6px 8px}
.drawer #folderTreeContainer{font-size:14px}
/* Upload card removed from the left panel (drop files anywhere instead);
   it stays in the DOM so the "Upload" menu/modal still works. */
body.authed .drawer #leftCol{display:none!important}
body.authed .drawer #rightCol{flex:0 0 100%!important;max-width:100%!important;width:100%!important}

/* Floating upload-progress widget (so progress is visible on full-screen drops) */
.fr-upload-progress{position:fixed;right:18px;bottom:18px;z-index:10055;width:340px;max-width:calc(100vw - 36px);max-height:55vh;overflow:auto}
.fr-upload-progress:empty{display:none}
.fr-upload-progress:not(:empty){background:var(--surface);color:var(--ink);border:1px solid var(--surf2);
  border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:12px 14px}
@media (max-width:680px){.fr-upload-progress{bottom:96px;right:12px;left:12px;width:auto;max-width:none}}

/* storage widget (added in shell markup) */
.fr-storage{margin:14px 4px 0;padding:16px;border-radius:var(--r-lg);background:var(--surf2)}
.fr-storage .row1{display:flex;justify-content:space-between;font-size:13px;margin-bottom:10px;color:var(--ink)}
.fr-storage .row1 b{font-weight:700}
.fr-bar{height:10px;border-radius:var(--r-full);background:var(--surf3);overflow:hidden}
.fr-bar i{display:block;height:100%;width:64%;border-radius:var(--r-full);background:var(--primary)}
.fr-storage small{display:block;margin-top:8px;color:var(--faint);font-size:12px}

/* ---- MAIN ---- */
.shell .main{overflow:auto;padding:18px 24px 64px;min-width:0}

/* ============ SEARCHBAR (top of main) ============ */
.fr-searchbar{display:flex;align-items:center;gap:10px;background:var(--surf1);min-height:56px;border-radius:var(--r-full);
  padding:6px 8px 6px 18px;margin-bottom:20px;box-shadow:var(--shadow);flex-wrap:wrap}
.fr-pal-trigger{flex:1;min-width:120px;display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;border:none;
  background:var(--surf2);border-radius:var(--r-full);cursor:pointer;color:var(--faint);font-family:inherit;font-size:14px;transition:.16s}
.fr-pal-trigger:hover{background:var(--surf3);color:var(--ink)}
.fr-pal-trigger .material-icons{font-size:20px;color:var(--muted)}
.fr-pal-trigger-lab{flex:1;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fr-pal-trigger kbd{font-size:11px;border:1px solid var(--outline);border-radius:6px;padding:2px 6px;background:var(--surface)}
@media (max-width:680px){.fr-pal-trigger-lab,.fr-pal-trigger kbd{display:none}.fr-pal-trigger{flex:0 0 44px;min-width:44px;justify-content:center}}
.fr-searchbar .s-ic{width:44px;height:44px;border-radius:var(--r-full);display:grid;place-items:center;cursor:pointer;color:var(--muted);
  border:none;background:none;transition:.16s;flex-shrink:0}
.fr-searchbar .s-ic:hover{background:var(--surf2);color:var(--ink)}
.fr-searchbar .s-ic .material-icons{font-size:22px}
.fr-av{width:38px;height:38px;border-radius:var(--r-full);background:var(--primary);
  color:var(--on-primary);display:grid;place-items:center;font-weight:700;flex-shrink:0;font-size:15px;text-transform:uppercase}

/* UI scale control */
.fr-zoom{display:flex;align-items:center;gap:2px;background:var(--surf2);border-radius:var(--r-full);padding:2px;flex-shrink:0}
.fr-zoom .s-ic{width:34px;height:34px}
.fr-zoom-val{min-width:48px;height:34px;border:none;background:none;color:var(--ink);font-weight:600;font-size:13px;
  cursor:pointer;border-radius:var(--r-full);font-family:inherit}
.fr-zoom-val:hover{background:var(--surf3)}
@media (max-width:680px){.fr-zoom{display:none}}  /* scale control hidden on phones; use palette */

/* ============ CARDS ============ */
.shell .main .card,
.file-list-pane{background:var(--surface)!important;border:none!important;border-radius:var(--r-lg)!important;
  box-shadow:var(--shadow)!important;color:var(--ink)}
.card-header{background:var(--surf1)!important;border-bottom:1px solid var(--surf2)!important;color:var(--ink)!important;
  font-weight:500;border-radius:var(--r-lg) var(--r-lg) 0 0!important}

/* ============ BUTTONS (Material pill) ============ */
.btn{border-radius:var(--r-sm)!important;font-weight:500;transition:.16s var(--ease);font-family:inherit}
.btn-primary{background:var(--primary)!important;border-color:var(--primary)!important;color:var(--on-primary)!important;box-shadow:var(--shadow)}
.btn-primary:hover{filter:brightness(1.05)}
.btn-secondary{background:var(--surf2)!important;border-color:transparent!important;color:var(--ink)!important}
.btn-secondary:hover{background:var(--surf3)!important}
.btn-danger{background:var(--pl-rose-on)!important;border-color:transparent!important;color:#fff!important}
.btn-warning{background:var(--pl-butter-c)!important;border-color:transparent!important;color:var(--pl-butter-on)!important}
.btn-light{background:var(--surf2)!important;color:var(--ink)!important;border-color:transparent!important}
/* icon action buttons in toolbar */
.action-btn{border-radius:var(--r-full)!important;color:var(--muted)!important;background:transparent!important;border:none!important}
.action-btn:hover{background:var(--surf2)!important;color:var(--ink)!important}
.action-btn:disabled{opacity:.4}

/* ============ CHIPS (toolbar) ============ */
.fr-chips{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap;align-items:center}
.chip{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 16px;border-radius:var(--r-sm);
  border:1.5px solid var(--outline);font-size:14px;font-weight:500;cursor:pointer;background:transparent;color:var(--ink);transition:.16s}
.chip:hover{background:var(--surf2)}
.chip.on{background:var(--surf3);border-color:transparent}
.chip.filled{background:var(--primary);color:var(--on-primary);border:none;box-shadow:var(--shadow)}
.chip.filled:hover{filter:brightness(1.05)}
.chip.c-mint{background:var(--pl-mint-c);color:var(--pl-mint-on);border-color:transparent}
.chip.c-peach{background:var(--pl-peach-c);color:var(--pl-peach-on);border-color:transparent}
.chip.c-sky{background:var(--pl-sky-c);color:var(--pl-sky-on);border-color:transparent}
.chip.c-lilac{background:var(--pl-lilac-c);color:var(--pl-lilac-on);border-color:transparent}
.chip.c-rose{background:var(--pl-rose-c);color:var(--pl-rose-on);border-color:transparent}
.chip.c-aqua{background:var(--pl-aqua-c);color:var(--pl-aqua-on);border-color:transparent}
.chip.c-butter{background:var(--pl-butter-c);color:var(--pl-butter-on);border-color:transparent}
.chip.c-lav{background:var(--pl-lav-c);color:var(--pl-lav-on);border-color:transparent}
.fr-chips .spacer{flex:1}

/* ============ TITLE ============ */
.shell .main h2,
#fileListTitle{font-size:26px!important;font-weight:500!important;margin:6px 4px 14px!important;color:var(--ink)!important}

/* ============ FILE TABLE (filr-table) ============ */
.filr-table{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--r-lg);overflow:hidden}
.filr-table thead th{font-size:13px;color:var(--muted);font-weight:500;border-bottom:1px solid var(--surf2);
  padding:14px 16px;text-align:left;background:var(--surf1)}
.filr-table tbody td{padding:10px 16px;border-bottom:1px solid color-mix(in srgb,var(--surf2) 60%,transparent);
  color:var(--ink);font-size:14px;vertical-align:middle}
.filr-table tbody tr{transition:.14s;cursor:pointer}
.filr-table tbody tr:hover{background:var(--surf1)}
.filr-table tbody tr:last-child td{border-bottom:none}

/* pastel file-type icon chips (file-list rendering hooks) */
.fic,.file-type-ic{width:42px;height:42px;border-radius:var(--r-sm);display:grid;place-items:center;font-size:12px;font-weight:700;flex-shrink:0}
.ic-folder{background:var(--pl-butter-c);color:var(--pl-butter-on)}
.ic-pdf{background:var(--pl-rose-c);color:var(--pl-rose-on)}
.ic-xls{background:var(--pl-mint-c);color:var(--pl-mint-on)}
.ic-fig{background:var(--pl-lilac-c);color:var(--pl-lilac-on)}
.ic-vid{background:var(--pl-sky-c);color:var(--pl-sky-on)}
.ic-md{background:var(--pl-lav-c);color:var(--pl-lav-on)}
.ic-aqua{background:var(--pl-aqua-c);color:var(--pl-aqua-on)}

/* gallery cards */
.gallery-card{background:var(--surface)!important;border:none!important;border-radius:var(--r-lg)!important;
  box-shadow:var(--shadow)!important;color:var(--ink);transition:transform .16s var(--ease),box-shadow .16s var(--ease)}
.gallery-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)!important}
.gallery-card img,.gallery-card .thumb,.gallery-card canvas{border-radius:var(--r-md) var(--r-md) 0 0}

/* ============ MOTION: staggered list-in + reduced-motion ============ */
@keyframes frRowIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.filr-table tbody tr{animation:frRowIn .26s var(--ease) both}
.filr-table tbody tr:nth-child(1){animation-delay:.02s}
.filr-table tbody tr:nth-child(2){animation-delay:.04s}
.filr-table tbody tr:nth-child(3){animation-delay:.06s}
.filr-table tbody tr:nth-child(4){animation-delay:.08s}
.filr-table tbody tr:nth-child(5){animation-delay:.10s}
.filr-table tbody tr:nth-child(6){animation-delay:.12s}
.filr-table tbody tr:nth-child(7){animation-delay:.14s}
.filr-table tbody tr:nth-child(8){animation-delay:.16s}
.gallery-card{animation:frRowIn .26s var(--ease) both}

/* skeleton loading utility (flat opacity pulse — no gradient) */
.fr-skeleton{background:var(--surf2);border-radius:var(--r-sm);animation:frPulse 1.2s ease-in-out infinite}
@keyframes frPulse{0%,100%{opacity:1}50%{opacity:.5}}

@media (prefers-reduced-motion:reduce){
  .filr-table tbody tr,.gallery-card,.fr-pal-box{animation:none!important}
  .gallery-card{transition:none!important}
  .fr-skeleton{animation:none!important}
  .drawer{transition:none!important}
}

/* ============ FORM CONTROLS ============ */
.form-control{background:var(--surf1)!important;border:1px solid var(--outline)!important;color:var(--ink)!important;border-radius:var(--r-sm)!important}
.form-control:focus{border-color:var(--primary)!important;box-shadow:0 0 0 3px var(--primary-c)!important;background:var(--surface)!important}
.form-control::placeholder{color:var(--faint)!important}
#searchInput{background:transparent!important;border:none!important;box-shadow:none!important}

/* ============ MODALS ============ */
.modal-content{background:var(--surface)!important;color:var(--ink)!important;border-radius:var(--r-xl)!important;
  border:none!important;box-shadow:var(--shadow-lg)!important}
.modal-content h3,.modal-content h4{color:var(--ink)}

/* ============ DRAG-AND-DROP TARGET (files onto a folder in the tree) ============ */
.folder-option.drop-hover,
.folder-row.drop-hover,
#folderTreeContainer .drop-hover{
  background:var(--primary-c)!important;color:var(--on-primary-c)!important;
  box-shadow:inset 0 0 0 2px var(--primary);border-radius:var(--r-sm);transition:.12s var(--ease)}
.drop-target-sidebar.drop-hover,
#sidebarDropArea.drop-hover{outline:2px dashed var(--primary);outline-offset:-6px;background:var(--primary-c)}

/* ============ EMPTY STATES ============ */
.filr-table td[colspan]{text-align:center!important;padding:46px 16px!important;color:var(--faint);font-size:15px;border:none!important}
.filr-table td[colspan]::before,
.empty-state::before,
.file-list-secondary-empty .empty-state::before{
  content:"";display:block;width:104px;height:84px;margin:0 auto 16px;opacity:.92;
  background:center/contain no-repeat url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2064%2050'%3E%3Cpath%20d='M18%2042a8%208%200%200%201%20.5-16%2010%2010%200%200%201%2019-2%208.5%208.5%200%200%201%201.5%2018z'%20fill='%23cdbcff'/%3E%3Crect%20x='30'%20y='29'%20width='4'%20height='9'%20rx='2'%20fill='%237a5cff'/%3E%3Cpath%20d='M32%2023l5%207H27z'%20fill='%237a5cff'/%3E%3C/svg%3E");
  animation:frFloat 3.2s ease-in-out infinite}
.empty-state{color:var(--faint);font-size:15px;text-align:center;padding:32px 16px}
@keyframes frFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@media (prefers-reduced-motion:reduce){
  .filr-table td[colspan]::before,.empty-state::before{animation:none!important}
}

/* ============ FOLDER TREE ============ */
#folderTreeContainer .folder-option,
#folderTreeContainer li{border-radius:var(--r-full)}
#folderTreeContainer .selected,
#folderTreeContainer .active{background:var(--primary-c)!important;color:var(--on-primary-c)!important}

/* ============ FOOTER ============ */
.site-footer{background:transparent!important;color:var(--faint)!important;border-top:1px solid var(--surf2)}
.site-footer a{color:var(--primary)!important}

/* ============ LOGIN ============ */
.login-box{background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--shadow-lg);padding:34px 30px;max-width:420px;
  margin:6vh auto 0;border:none}
body.fr-login-view{background:var(--bg)!important}
body.fr-login-view .header-container{background:transparent!important;box-shadow:none!important}
body.fr-login-view .header-title h1{color:var(--ink)}

/* ============ TOAST ============ */
#customToast .toast,#customToast > div{border-radius:var(--r-md)!important}

/* ============ CUSTOM BACKGROUND (wallpaper) ============ */
/* Applied to the main content area; the file-list card floats on top, so text
   stays readable. Set --fr-bg-image to a url(...) (data URL) to enable. */
.shell .main{background-color:var(--bg);background-image:var(--fr-bg-image,none);
  background-size:cover;background-position:center;background-attachment:fixed;background-repeat:no-repeat}

/* ============ SETTINGS PANELS (admin + user) — Material polish ============ */
#adminPanelModal .modal-content,
#userPanelModal .modal-content{
  background:var(--surface)!important;color:var(--ink)!important;border:none!important;
  border-radius:var(--r-xl)!important;box-shadow:var(--shadow-lg)!important;
  max-width:min(980px,94vw)!important;width:min(980px,94vw)!important;max-height:90vh!important;overflow:auto!important}
#adminPanelModal .modal-content > h3,
#userPanelModal .modal-content > h3{
  position:sticky;top:0;z-index:3;margin:-1px -1px 14px;padding:16px 20px;background:var(--surf1);
  border-bottom:1px solid var(--surf2);font-size:20px;font-weight:600;color:var(--ink)}
/* collapsible sections rendered as cards */
#adminPanelModal .section-header{
  display:flex;align-items:center;justify-content:space-between;gap:10px;cursor:pointer;
  margin:14px 0 0;padding:13px 16px;background:var(--surf1);border:1px solid var(--outline);
  border-radius:var(--r-md);font-weight:600;font-size:14px;transition:.14s var(--ease)}
#adminPanelModal .section-header:hover{background:var(--surf2)}
#adminPanelModal .section-content{padding:14px 16px 4px;border:1px solid var(--surf2);border-top:none;
  border-radius:0 0 var(--r-md) var(--r-md);margin-bottom:6px}
/* group subheadings */
#adminPanelModal .admin-subsection-title{
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--faint);
  margin:18px 0 8px;padding-bottom:6px;border-bottom:1px solid var(--surf2)}
/* fields, labels, inputs */
#adminPanelModal .form-group,#userPanelModal .form-group{margin:0 0 14px}
#adminPanelModal label,#userPanelModal label{font-size:13px;font-weight:500;color:var(--muted);display:block;margin-bottom:5px}
#adminPanelModal .form-control,#userPanelModal .form-control,
#adminPanelModal select,#adminPanelModal textarea,#userPanelModal select,#userPanelModal textarea{
  width:100%;background:var(--surf1)!important;border:1px solid var(--outline)!important;color:var(--ink)!important;
  border-radius:var(--r-sm)!important;padding:9px 11px!important}
#adminPanelModal .form-control:focus,#userPanelModal .form-control:focus,
#adminPanelModal select:focus,#adminPanelModal textarea:focus{border-color:var(--primary)!important;box-shadow:0 0 0 3px var(--primary-c)!important}
#adminPanelModal hr,#userPanelModal hr{border:none;border-top:1px solid var(--surf2);margin:16px 0}
#adminPanelModal .btn,#userPanelModal .btn{border-radius:var(--r-sm)!important}

/* appearance popover: background picker */
.fr-bg-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.fr-bg-row .btn-min{height:34px;padding:0 12px;border:1.5px solid var(--outline);background:transparent;color:var(--ink);
  border-radius:var(--r-sm);cursor:pointer;font-family:inherit;font-size:13px;font-weight:500}
.fr-bg-row .btn-min:hover{background:var(--surf2)}

/* ============ SCRIM ============ */
.fr-scrim{position:fixed;inset:0;background:var(--scrim);z-index:55;border:none}

/* ============ ACCENT COLOR (Material You dynamic color) ============ */
/* Default accent (lavender/violet) lives in the base theme vars above.
   Selecting an accent overrides --primary set, per theme for proper contrast. */
:root[data-theme="light"][data-accent="lav"]{--primary:#4a2f8f;--on-primary:#fff;--primary-c:#ede7ff;--on-primary-c:#26076e}
:root[data-theme="dark"][data-accent="lav"]{--primary:#d6c8ff;--on-primary:#2a0d5e;--primary-c:#2e2747;--on-primary-c:#d6c8ff}
:root[data-theme="light"][data-accent="mint"]{--primary:#0d6b3f;--on-primary:#fff;--primary-c:#e2f7e9;--on-primary-c:#063f23}
:root[data-theme="dark"][data-accent="mint"]{--primary:#bdeccb;--on-primary:#06351f;--primary-c:#16321f;--on-primary-c:#bdeccb}
:root[data-theme="light"][data-accent="peach"]{--primary:#a5430f;--on-primary:#fff;--primary-c:#ffe9df;--on-primary-c:#5c2207}
:root[data-theme="dark"][data-accent="peach"]{--primary:#ffd6c2;--on-primary:#4a1c08;--primary-c:#3a2316;--on-primary-c:#ffd6c2}
:root[data-theme="light"][data-accent="sky"]{--primary:#0b4f9e;--on-primary:#fff;--primary-c:#e3f1ff;--on-primary-c:#062a52}
:root[data-theme="dark"][data-accent="sky"]{--primary:#c6e2ff;--on-primary:#062a52;--primary-c:#16273d;--on-primary-c:#c6e2ff}
:root[data-theme="light"][data-accent="rose"]{--primary:#b01457;--on-primary:#fff;--primary-c:#ffe4ef;--on-primary-c:#5e0a2e}
:root[data-theme="dark"][data-accent="rose"]{--primary:#ffd0e0;--on-primary:#5e0a2e;--primary-c:#3a1626;--on-primary-c:#ffd0e0}
:root[data-theme="light"][data-accent="butter"]{--primary:#8a5a00;--on-primary:#fff;--primary-c:#fff3d4;--on-primary-c:#4a3000}
:root[data-theme="dark"][data-accent="butter"]{--primary:#ffe6a8;--on-primary:#4a3000;--primary-c:#332a12;--on-primary-c:#ffe6a8}
:root[data-theme="light"][data-accent="aqua"]{--primary:#0a6b63;--on-primary:#fff;--primary-c:#e1f7f5;--on-primary-c:#053b36}
:root[data-theme="dark"][data-accent="aqua"]{--primary:#bdeee9;--on-primary:#053b36;--primary-c:#0f2e2b;--on-primary-c:#bdeee9}
:root[data-theme="light"][data-accent="lilac"]{--primary:#7a23b8;--on-primary:#fff;--primary-c:#f6e6ff;--on-primary-c:#420a66}
:root[data-theme="dark"][data-accent="lilac"]{--primary:#ecceff;--on-primary:#420a66;--primary-c:#2c1a3a;--on-primary-c:#ecceff}

/* ============ APPEARANCE POPOVER ============ */
.fr-pop{position:fixed;z-index:10040;background:var(--surface);color:var(--ink);border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg);padding:16px;width:280px;max-width:calc(100vw - 24px);animation:frPalIn .16s var(--ease)}
.fr-pop[hidden]{display:none}
.fr-pop h4{font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--faint);margin:0 0 10px}
.fr-pop h4:not(:first-child){margin-top:18px}
.fr-acc-grid{display:flex;flex-wrap:wrap;gap:10px}
.fr-acc{width:34px;height:34px;border-radius:50%;border:2px solid transparent;cursor:pointer;position:relative;transition:transform .12s}
.fr-acc:hover{transform:scale(1.12)}
.fr-acc.on{border-color:var(--ink)}
/* swatch backgrounds are always light pastels -> dark check reads well in both themes */
.fr-acc.on::after{content:"check";font-family:'Material Icons';position:absolute;inset:0;display:grid;place-items:center;color:#1d1b20;font-size:18px}
.fr-seg{display:flex;gap:6px}
.fr-seg button{flex:1;height:38px;border:1.5px solid var(--outline);background:transparent;color:var(--ink);border-radius:var(--r-sm);
  cursor:pointer;font-family:inherit;font-size:13px;font-weight:500;transition:.14s}
.fr-seg button:hover{background:var(--surf2)}
.fr-seg button.on{background:var(--primary);color:var(--on-primary);border-color:transparent}

/* ============ SNACKBAR ============ */
.fr-snack-wrap{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:10060;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
@media (max-width:680px){.fr-snack-wrap{bottom:96px}}
.fr-snack{pointer-events:auto;display:flex;align-items:center;gap:14px;background:var(--surf3);color:var(--ink);
  border:1px solid var(--outline);border-radius:var(--r-sm);box-shadow:var(--shadow-lg);padding:12px 16px;min-width:240px;max-width:92vw;font-size:14px;
  animation:frSnackIn .22s var(--ease)}
.fr-snack .msg{flex:1}
.fr-snack button{background:none;border:none;color:var(--primary);font-weight:700;cursor:pointer;font-family:inherit;font-size:14px;
  text-transform:uppercase;letter-spacing:.04em;padding:4px 6px;border-radius:6px}
.fr-snack button:hover{background:var(--surf1)}
.fr-snack.out{animation:frSnackOut .2s var(--ease) forwards}
@keyframes frSnackIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes frSnackOut{to{opacity:0;transform:translateY(12px)}}

/* ============ KEYBOARD-FOCUSED ROW ============ */
.filr-table tbody tr.fr-kbd{outline:2px solid var(--primary);outline-offset:-2px;background:var(--surf1)}
.gallery-card.fr-kbd{outline:2px solid var(--primary);outline-offset:2px}

/* ============ EXIF / FILE-INFO PANEL (image preview) ============ */
.fr-exif-panel{position:absolute;top:12px;right:12px;width:264px;max-width:72vw;max-height:calc(100% - 24px);overflow:auto;
  background:var(--surface);color:var(--ink);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:14px;z-index:1003;
  font-size:13px;animation:frPalIn .16s var(--ease)}
.fr-exif-h{display:flex;align-items:center;gap:8px;font-weight:700;margin-bottom:10px}
.fr-exif-h .material-icons{font-size:18px;color:var(--primary)}
.fr-exif-row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--surf2)}
.fr-exif-row:last-child{border-bottom:none}
.fr-exif-row span{color:var(--muted);flex-shrink:0}
.fr-exif-row b{text-align:right;word-break:break-word}
.fr-exif-none{color:var(--faint);padding:8px 0}
.fr-exif-map{display:inline-flex;align-items:center;gap:6px;margin-top:10px;color:var(--primary);text-decoration:none;font-weight:600}
.fr-exif-map .material-icons{font-size:18px}
@media (max-width:680px){.fr-exif-panel{right:8px;left:8px;width:auto;max-width:none}}

/* ============ COMMAND PALETTE (Ctrl/Cmd-K) ============ */
.fr-pal[hidden]{display:none}
.fr-pal{position:fixed;inset:0;z-index:10050;display:flex;align-items:flex-start;justify-content:center}
.fr-pal-scrim{position:absolute;inset:0;background:var(--scrim)}
.fr-pal-box{position:relative;margin-top:12vh;width:min(620px,92vw);background:var(--surface);color:var(--ink);
  border-radius:var(--r-xl);box-shadow:var(--shadow-lg);overflow:hidden;animation:frPalIn .16s var(--ease)}
@keyframes frPalIn{from{opacity:0;transform:translateY(-8px) scale(.98)}to{opacity:1;transform:none}}
.fr-pal-top{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--surf2)}
.fr-pal-top .material-icons{color:var(--muted)}
.fr-pal-input{flex:1;border:none;background:transparent;outline:none;font-size:16px;color:var(--ink);font-family:inherit}
.fr-pal-input::placeholder{color:var(--faint)}
.fr-pal-top kbd{font-size:11px;color:var(--faint);border:1px solid var(--outline);border-radius:6px;padding:2px 6px;background:var(--surf1)}
.fr-pal-list{max-height:52vh;overflow:auto;padding:8px}
.fr-pal-row{display:flex;align-items:center;gap:12px;width:100%;text-align:left;padding:10px 12px;border:none;
  background:none;border-radius:var(--r-sm);cursor:pointer;color:var(--ink);font-size:14px;font-family:inherit;transition:.12s}
.fr-pal-row:hover,.fr-pal-row.on{background:var(--surf2)}
.fr-pal-row.on{box-shadow:inset 3px 0 0 var(--primary)}
.fr-pal-ic{width:34px;height:34px;border-radius:var(--r-xs);display:grid;place-items:center;font-size:18px;
  background:var(--surf2);color:var(--muted);flex-shrink:0}
.fr-pal-ic.ic-folder{background:var(--pl-butter-c);color:var(--pl-butter-on)}
.fr-pal-lab{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.fr-pal-hint{color:var(--faint);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:40%}
.fr-pal-kind{color:var(--faint);font-size:11px;text-transform:uppercase;letter-spacing:.04em;flex-shrink:0}
.fr-pal-empty{padding:24px;text-align:center;color:var(--faint);font-size:14px}

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* tablet: drawer off-canvas, keep rail */
@media (max-width:1080px){
  .shell,.shell:has(.drawer.collapsed){grid-template-columns:96px 1fr}   /* drawer is off-canvas here */
  .drawer{position:fixed;top:0;left:96px;bottom:0;width:300px;z-index:60;transform:translateX(-115%);
    box-shadow:var(--shadow-lg);border-radius:0 var(--r-xl) var(--r-xl) 0;height:100dvh}
  body.drawer-open .drawer{transform:translateX(0)}
  body.drawer-open .fr-scrim{display:block}
  .drawer .dclose{display:grid;place-items:center}
}
/* mobile: drop rail, app bar on top, bottom nav, floating fab */
@media (max-width:680px){
  body.fr-shell{overflow:auto}
  .shell{display:block;height:auto;min-height:100dvh;overflow:visible;padding-bottom:84px}
  .rail{display:none}
  .drawer{left:0;width:86vw;max-width:320px}
  .shell .main{padding:14px 14px 24px}

  .fr-appbar{display:flex;align-items:center;gap:6px;position:sticky;top:0;z-index:40;background:var(--bg);
    padding:10px 8px;border-bottom:1px solid var(--surf2)}
  .fr-appbar .ab-btn{width:44px;height:44px;border-radius:var(--r-full);display:grid;place-items:center;color:var(--ink);
    background:none;border:none;cursor:pointer}
  .fr-appbar .ab-btn:hover{background:var(--surf2)}
  .fr-appbar .ab-btn .material-icons{font-size:24px}
  .fr-appbar .ab-title{font-size:20px;font-weight:700;display:flex;align-items:center;gap:9px;color:var(--ink)}
  .fr-appbar .ab-title .logo{width:30px;height:30px;border-radius:9px;
    background:var(--primary-c);display:grid;place-items:center}
  .fr-appbar .ab-sp{flex:1}

  /* file table collapses: hide secondary columns */
  .filr-table .col-mod,.filr-table .col-size,.filr-table .col-own,
  .filr-table thead th.col-mod,.filr-table thead th.col-size,.filr-table thead th.col-own{display:none}

  .fr-bottomnav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:50;background:var(--surf1);
    border-top:1px solid var(--surf2);padding:8px 6px;justify-content:space-around;backdrop-filter:saturate(160%) blur(6px)}
  .bn-i{display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--muted);background:none;border:none;
    cursor:pointer;flex:1;padding:2px 0;font-family:inherit}
  .bn-i .pill{padding:4px 18px;border-radius:var(--r-full);transition:.2s var(--ease)}
  .bn-i .pill .material-icons{font-size:22px}
  .bn-i.on{color:var(--ink)}
  .bn-i.on .pill{background:var(--primary-c);color:var(--on-primary-c)}
  .bn-i span.lbl{font-size:11px;font-weight:500}

  .fr-fab-mobile{display:grid;place-items:center;position:fixed;right:18px;bottom:90px;z-index:55;
    width:60px;height:60px;border-radius:var(--r-md);background:var(--primary-c);color:var(--on-primary-c);
    border:none;box-shadow:var(--shadow-lg);cursor:pointer}
  .fr-fab-mobile:active{transform:scale(.95)}
  .fr-fab-mobile .material-icons{font-size:28px}

  .fr-chips{gap:8px}
  .chip{height:36px;font-size:13px}
  #fileListTitle{font-size:22px!important}
}