:root {
  --bg: #07131b;
  --bg-soft: #0b1d27;
  --panel: #102630;
  --panel-2: #142f3a;
  --panel-glass: rgba(16, 38, 48, .86);
  --text: #f5fbfd;
  --muted: #8da8b3;
  --line: rgba(159, 205, 219, .14);
  --accent: #23d6cf;
  --accent-2: #36aeea;
  --accent-soft: rgba(35, 214, 207, .14);
  --danger: #ff6b7a;
  --success: #47d7a2;
  --shadow: 0 22px 60px rgba(0,0,0,.26);
  --radius: 18px;
  --radius-sm: 12px;
  --sidebar: 260px;
}

html[data-theme="light"] {
  --bg: #eaf4f7;
  --bg-soft: #f6fbfc;
  --panel: #ffffff;
  --panel-2: #f0f7f9;
  --panel-glass: rgba(255,255,255,.9);
  --text: #10242d;
  --muted: #637c86;
  --line: rgba(33, 83, 98, .13);
  --accent-soft: rgba(12, 174, 171, .12);
  --shadow: 0 22px 60px rgba(42, 81, 94, .13);
}

* { box-sizing: border-box; }
html { min-height: 100%; background: var(--bg); }
body { margin: 0; min-height: 100vh; color: var(--text); background: var(--bg); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }

.auth-body {
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 22% 10%, rgba(35,214,207,.18), transparent 35%),
    radial-gradient(circle at 85% 82%, rgba(54,174,234,.12), transparent 38%),
    #07131b;
  padding: 24px;
}
.auth-shell { width: min(100%, 460px); }
.auth-card { background: rgba(10,29,39,.88); border: 1px solid rgba(123,218,225,.15); backdrop-filter: blur(22px); border-radius: 28px; box-shadow: var(--shadow); padding: 38px; }
html[data-theme="light"] .auth-body { background: radial-gradient(circle at 22% 10%, rgba(35,214,207,.18), transparent 35%), radial-gradient(circle at 85% 82%, rgba(54,174,234,.15), transparent 38%), #d8edf1; }
html[data-theme="light"] .auth-card { background: rgba(255,255,255,.9); }
.auth-kicker { color: var(--accent); font-size: 13px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; margin: 28px 0 8px; }
.auth-card h1 { margin: 0 0 8px; font-size: clamp(28px, 6vw, 38px); }
.auth-theme { width: 100%; justify-content: center; margin-top: 22px; }

.brand { display: inline-flex; align-items: baseline; font-size: 25px; font-weight: 800; letter-spacing: -.04em; white-space: nowrap; }
.brand span { color: #fff; }
.brand strong { color: var(--accent); font-weight: 800; }
html[data-theme="light"] .sidebar .brand span, html[data-theme="light"] .auth-card .brand span { color: #12333f; }
.brand-large { font-size: 36px; }

.muted { color: var(--muted); }
.eyebrow { display: block; font-size: 11px; font-weight: 900; letter-spacing: .18em; color: var(--accent); }

.app-shell { min-height: 100vh; display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); }
.sidebar { position: sticky; top: 0; height: 100vh; background: #081820; border-right: 1px solid rgba(112,193,204,.12); padding: 22px 16px 16px; display: flex; flex-direction: column; z-index: 30; }
html[data-theme="light"] .sidebar { background: #12303b; color: #f4fbfc; }
html[data-theme="light"] .sidebar .brand span { color: #fff; }
.sidebar-head { height: 48px; display: flex; align-items: center; justify-content: space-between; padding: 0 10px; }
.main-nav { margin-top: 26px; display: grid; gap: 6px; }
.nav-item { display: flex; gap: 12px; align-items: center; min-height: 48px; padding: 0 13px; border-radius: 12px; color: #9fb2b9; font-weight: 700; transition: .18s ease; }
.nav-item:hover { color: #fff; background: rgba(255,255,255,.05); }
.nav-item.active { color: #dffefe; background: linear-gradient(90deg, rgba(35,214,207,.18), rgba(35,214,207,.06)); box-shadow: inset 3px 0 0 var(--accent); }
.nav-icon { width: 22px; text-align: center; color: var(--accent); font-size: 19px; }
.sidebar-spacer { flex: 1; }
.storage-card { padding: 14px; border-radius: 14px; border: 1px solid rgba(150,218,225,.11); background: rgba(255,255,255,.03); margin-bottom: 12px; }
.storage-row { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; }
.storage-row span, .storage-card small { color: #7f9aa4; }
.storage-card small { display: block; margin-top: 8px; font-size: 10px; line-height: 1.45; }
.storage-bar { height: 6px; background: rgba(255,255,255,.07); border-radius: 999px; overflow: hidden; margin-top: 10px; }
.storage-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: inherit; }
.user-card { display: grid; grid-template-columns: 38px minmax(0,1fr) 36px; gap: 10px; align-items: center; padding: 10px; border-top: 1px solid rgba(145,200,211,.1); }
.user-card strong, .user-card small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-card strong { color: #fff; font-size: 13px; }.user-card small { color: #7f9aa4; font-size: 11px; margin-top: 2px; }
.avatar { width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(35,214,207,.22), rgba(54,174,234,.2)); color: var(--accent); border: 1px solid rgba(35,214,207,.2); font-weight: 900; }

.content { min-width: 0; background: var(--bg-soft); }
.topbar { height: 92px; display: flex; align-items: center; gap: 18px; padding: 0 30px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg-soft) 88%, transparent); backdrop-filter: blur(16px); position: sticky; top: 0; z-index: 20; }
.topbar-title { min-width: 0; }.topbar-title h1 { margin: 3px 0 0; font-size: 21px; letter-spacing: -.02em; }.topbar-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.workspace { padding: 30px; max-width: 1600px; margin: 0 auto; }
.workspace-head { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 20px; }
.workspace-head p { margin: 7px 0 0; font-size: 13px; }
.toolbar { display: flex; gap: 9px; flex-wrap: wrap; justify-content: flex-end; }
.breadcrumbs { min-height: 22px; display: flex; flex-wrap: wrap; align-items: center; gap: 7px; font-weight: 800; font-size: 14px; }.breadcrumbs a { color: var(--muted); }.breadcrumbs a:hover { color: var(--accent); }.crumb-sep { color: var(--muted); opacity: .55; }.crumb-current { color: var(--text); }

.btn, .icon-btn, .theme-switch { border: 1px solid var(--line); background: var(--panel); border-radius: 11px; cursor: pointer; transition: transform .15s ease, background .15s ease, border-color .15s ease; display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 800; }
.btn { min-height: 42px; padding: 0 15px; font-size: 13px; }.btn:hover, .icon-btn:hover, .theme-switch:hover { border-color: rgba(35,214,207,.38); transform: translateY(-1px); }.btn-primary { background: linear-gradient(135deg, var(--accent), #25b7d8); color: #062027; border-color: transparent; box-shadow: 0 9px 28px rgba(35,214,207,.13); }.btn-ghost { background: var(--panel); }.btn-danger { background: rgba(255,107,122,.09); color: var(--danger); border-color: rgba(255,107,122,.18); }.btn-block { width: 100%; }.icon-btn { width: 38px; height: 38px; padding: 0; background: transparent; }.theme-switch { min-height: 40px; padding: 0 13px; color: var(--muted); }.theme-switch.compact { background: var(--panel); }.view-toggle { display: flex; gap: 4px; padding: 3px; border: 1px solid var(--line); border-radius: 13px; background: var(--panel); }.view-toggle .icon-btn { border: 0; width: 34px; height: 34px; color: var(--muted); }.view-toggle .icon-btn.active { background: var(--accent-soft); color: var(--accent); }
.file-picker { cursor: pointer; }

.dropzone { border: 1px dashed rgba(35,214,207,.23); background: linear-gradient(90deg, rgba(35,214,207,.035), rgba(54,174,234,.025)); border-radius: var(--radius); min-height: 92px; display: grid; place-items: center; margin-bottom: 22px; cursor: pointer; transition: .2s ease; }.dropzone:hover, .dropzone.dragover { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); }.dropzone.uploading { opacity: .65; pointer-events: none; }.dropzone-inner { display: flex; align-items: center; gap: 12px; padding: 16px; }.dropzone-inner strong, .dropzone-inner small { display: block; }.dropzone-inner small { color: var(--muted); font-size: 11px; margin-left: 3px; }.drop-icon { width: 42px; height: 42px; border-radius: 13px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-size: 22px; }

.file-area.grid-view { display: grid; grid-template-columns: repeat(auto-fill, minmax(185px, 1fr)); gap: 14px; }.file-card { position: relative; min-width: 0; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: .16s ease; }.file-card:hover { transform: translateY(-2px); border-color: rgba(35,214,207,.28); box-shadow: 0 14px 32px rgba(0,0,0,.08); }.card-open { width: 100%; border: 0; color: inherit; text-align: left; padding: 0; background: transparent; display: block; cursor: default; }.folder-open { cursor: pointer; }.thumb { height: 132px; margin: 9px 9px 0; border-radius: 13px; display: grid; place-items: center; overflow: hidden; background: var(--panel-2); }.image-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }.folder-thumb { background: linear-gradient(145deg, rgba(35,214,207,.15), rgba(54,174,234,.08)); }.folder-thumb span { font-size: 50px; color: var(--accent); transform: rotate(0deg); }.file-thumb span { font-size: 18px; font-weight: 900; color: var(--accent); letter-spacing: -.03em; }.file-meta { padding: 13px 13px 14px; min-width: 0; }.file-meta strong, .file-meta small { display: block; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }.file-meta strong { font-size: 13px; }.file-meta small { color: var(--muted); font-size: 10px; margin-top: 5px; }.file-actions { position: absolute; top: 15px; right: 15px; display: flex; gap: 4px; opacity: 0; transform: translateY(-3px); transition: .15s ease; }.file-card:hover .file-actions, .file-card:focus-within .file-actions { opacity: 1; transform: none; }.file-actions .icon-btn { width: 31px; height: 31px; border-radius: 9px; background: rgba(7,19,27,.78); color: #dff7fa; border-color: rgba(255,255,255,.09); backdrop-filter: blur(10px); font-size: 13px; }

.file-area.list-view { display: grid; gap: 7px; }.list-view .file-card { min-height: 66px; border-radius: 14px; display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; overflow: visible; }.list-view .card-open { display: grid; grid-template-columns: 48px minmax(0,1fr); align-items: center; min-width: 0; }.list-view .thumb { width: 44px; height: 44px; margin: 0 0 0 10px; border-radius: 11px; }.list-view .folder-thumb span { font-size: 25px; }.list-view .file-thumb span { font-size: 10px; }.list-view .file-meta { padding: 11px 13px; }.list-view .file-actions { position: static; opacity: 1; transform: none; padding-right: 10px; }.list-view .file-actions .icon-btn { background: transparent; color: var(--muted); border-color: transparent; }.list-view .file-actions .icon-btn:hover { background: var(--panel-2); color: var(--accent); }

.loading-card, .empty-state { grid-column: 1 / -1; min-height: 280px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); display: grid; place-items: center; color: var(--muted); }.empty-state { text-align: center; align-content: center; padding: 36px; }.empty-state h3 { margin: 12px 0 6px; color: var(--text); }.empty-state p { margin: 0; max-width: 430px; }.empty-icon { width: 64px; height: 64px; border-radius: 20px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-size: 27px; }

.stack-form { display: grid; gap: 15px; margin-top: 24px; }.stack-form label { display: grid; gap: 7px; font-size: 12px; font-weight: 800; color: var(--muted); }.stack-form input, .stack-form select, .user-inline-form input, .user-inline-form select { width: 100%; min-height: 44px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); border-radius: 11px; padding: 0 12px; outline: none; transition: .15s ease; }.stack-form input:focus, .stack-form select:focus, .user-inline-form input:focus, .user-inline-form select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.alert { padding: 12px 14px; border-radius: 12px; margin: 0 0 16px; border: 1px solid var(--line); font-size: 13px; }.alert-error { color: #ffd8dd; background: rgba(255,107,122,.09); border-color: rgba(255,107,122,.2); }.alert-success { color: #caffeb; background: rgba(71,215,162,.08); border-color: rgba(71,215,162,.18); }html[data-theme="light"] .alert-error { color: #8d2030; }html[data-theme="light"] .alert-success { color: #146746; }

.modal { position: fixed; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(2,10,14,.62); backdrop-filter: blur(9px); z-index: 100; opacity: 0; pointer-events: none; transition: .16s ease; }.modal.show { opacity: 1; pointer-events: auto; }.modal-card { width: min(100%, 450px); background: var(--panel); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); padding: 20px; transform: scale(.97) translateY(6px); transition: .16s ease; }.modal.show .modal-card { transform: none; }.modal-head { display: flex; justify-content: space-between; align-items: center; }.modal-head h2 { margin: 0; font-size: 19px; }.modal-actions { display: flex; justify-content: flex-end; gap: 9px; margin-top: 4px; }
.toast-stack { position: fixed; right: 20px; bottom: 20px; z-index: 200; display: grid; gap: 9px; width: min(360px, calc(100vw - 40px)); }.toast { padding: 13px 15px; border-radius: 12px; background: #102630; color: #eafafd; border: 1px solid rgba(35,214,207,.18); box-shadow: var(--shadow); transform: translateY(8px); opacity: 0; transition: .2s ease; font-size: 13px; }.toast.show { transform: none; opacity: 1; }.toast-error { border-color: rgba(255,107,122,.26); }

.admin-workspace { max-width: 1500px; }.admin-grid { display: grid; grid-template-columns: minmax(280px, 360px) minmax(0,1fr); gap: 18px; }.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; align-self: start; }.panel-head h2 { margin: 5px 0 0; font-size: 19px; }.panel .stack-form { margin-top: 20px; }.admin-users { display: grid; gap: 8px; margin-top: 18px; }.admin-user-row { display: grid; grid-template-columns: minmax(190px,1fr) minmax(320px, 1.25fr) auto; gap: 10px; align-items: center; padding: 11px; border: 1px solid var(--line); border-radius: 14px; background: var(--bg-soft); }.admin-user-main { display: grid; grid-template-columns: 38px minmax(0,1fr); align-items: center; gap: 10px; min-width: 0; }.admin-user-main strong, .admin-user-main small { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }.admin-user-main small { color: var(--muted); margin-top: 3px; font-size: 10px; }.user-inline-form { display: grid; grid-template-columns: 110px minmax(150px,1fr) auto; gap: 7px; }.user-inline-form input, .user-inline-form select { min-height: 38px; }

.mobile-only { display: none; }.sidebar-backdrop { display: none; }

@media (max-width: 1050px) {
  .admin-grid { grid-template-columns: 1fr; }.admin-user-row { grid-template-columns: 1fr; }.user-inline-form { grid-template-columns: 120px minmax(150px,1fr) auto; }
}

@media (max-width: 820px) {
  :root { --sidebar: 278px; }
  .mobile-only { display: inline-flex; }.desktop-only { display: none !important; }
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; left: 0; top: 0; width: var(--sidebar); transform: translateX(-105%); box-shadow: 25px 0 60px rgba(0,0,0,.25); transition: transform .22s ease; }.sidebar.open { transform: none; }
  .sidebar-backdrop { display: block; position: fixed; inset: 0; background: rgba(2,9,12,.55); z-index: 25; opacity: 0; pointer-events: none; transition: .2s ease; }.sidebar-backdrop.show { opacity: 1; pointer-events: auto; }
  .topbar { height: 76px; padding: 0 16px; gap: 12px; }.topbar-title h1 { font-size: 18px; }.workspace { padding: 18px 14px 28px; }.workspace-head { align-items: flex-start; flex-direction: column; }.toolbar { width: 100%; justify-content: flex-start; }.toolbar .view-toggle { margin-left: auto; }
  .file-area.grid-view { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }.thumb { height: 120px; }.file-actions { opacity: 1; transform: none; }.file-actions .icon-btn { width: 32px; height: 32px; }
}

@media (max-width: 560px) {
  .auth-body { padding: 14px; }.auth-card { padding: 27px 21px; border-radius: 22px; }.brand-large { font-size: 31px; }
  .topbar { padding-left: 12px; padding-right: 12px; }.theme-switch.compact { width: 40px; padding: 0; }
  .workspace { padding-left: 10px; padding-right: 10px; }.dropzone { min-height: 82px; }.dropzone-inner { width: 100%; }.dropzone-inner small { display: none; }
  .toolbar .btn { flex: 1; }.toolbar .view-toggle { flex: 0 0 auto; }
  .file-area.grid-view { grid-template-columns: repeat(2, minmax(0,1fr)); }.thumb { height: 105px; margin: 7px 7px 0; }.file-meta { padding: 10px; }.file-meta strong { font-size: 12px; }.file-meta small { font-size: 9px; }.file-actions { top: 10px; right: 10px; gap: 2px; }.file-actions .icon-btn { width: 28px; height: 28px; }
  .list-view .file-actions .action-rename { display: none; }
  .user-inline-form { grid-template-columns: 1fr; }.admin-user-row > form:last-child .btn { width: 100%; }.panel { padding: 15px; }
}

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }