/* ================================================================
   AlternativDocs — Design System
   ================================================================ */

:root {
  --brand:        #003DA5;
  --brand-dark:   #002d7a;
  --brand-light:  #e8eef9;
  --brand-mid:    #4a78d4;
  --green:        #10b981;
  --green-light:  #d1fae5;
  --danger:       #ef4444;
  --danger-light: #fee2e2;
  --warn:         #f59e0b;
  --warn-light:   #fef3c7;
  --bg:       #f5f7fa;
  --bg2:      #edf0f5;
  --panel:    #ffffff;
  --border:   #e2e8f0;
  --border2:  #cbd5e1;
  --text:     #0f172a;
  --text2:    #475569;
  --text3:    #94a3b8;
  --muted:    #64748b;
  --sidebar-w: 240px;
  --header-h:  60px;
  --radius:    10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.18);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color-scheme: light;
}
[data-theme="dark"] {
  --brand:        #4a78d4;
  --brand-dark:   #6b93e6;
  --brand-light:  #16213e;
  --bg:       #1a1a2e;
  --bg2:      #111827;
  --panel:    #16213e;
  --border:   #253153;
  --border2:  #3a4670;
  --text:     #e0e0e0;
  --text2:    #cbd5e1;
  --text3:    #94a3b8;
  --muted:    #a8b3cf;
  color-scheme: dark;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
body { background: radial-gradient(circle at top left, rgba(0,61,165,.08), transparent 34%), var(--bg); color: var(--text); min-height: 100dvh; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font: inherit; }
input, select { font: inherit; }
dialog { padding: 0; border: none; border-radius: var(--radius); background: var(--panel); color: var(--text); }
dialog::backdrop { background: rgba(0,0,0,.5); backdrop-filter: blur(4px); }

/* BUTTONS */
.btn-primary { display:inline-flex;align-items:center;gap:8px;padding:0 18px;height:38px;border-radius:var(--radius-sm);background:var(--brand);color:#fff;border:none;font-size:13px;font-weight:500;white-space:nowrap;transition:background .15s;cursor:pointer; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-outline { display:inline-flex;align-items:center;gap:8px;padding:0 14px;height:38px;border-radius:var(--radius-sm);background:var(--panel);color:var(--text2);border:1px solid var(--border);font-size:13px;white-space:nowrap;transition:border-color .15s,color .15s;cursor:pointer; }
.btn-outline:hover { border-color:var(--brand);color:var(--brand); }
.btn-outline.danger-soft { color:var(--danger);border-color:var(--danger-light); }
.btn-outline.danger-soft:hover { background:var(--danger-light);border-color:var(--danger); }
.btn-ghost { display:inline-flex;align-items:center;gap:6px;padding:0 12px;height:36px;border-radius:var(--radius-sm);background:transparent;color:var(--text2);border:none;font-size:13px;transition:background .15s;cursor:pointer; }
.btn-ghost:hover { background: var(--bg2); }
.icon-btn { display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);background:transparent;color:var(--text2);border:none;transition:background .15s;cursor:pointer; }
.icon-btn:hover { background: var(--bg2); }
.icon-btn.active { color:var(--brand);background:var(--brand-light); }
.upload-btn { display:inline-flex;align-items:center;gap:8px;padding:0 18px;height:38px;border-radius:var(--radius-sm);background:var(--brand);color:#fff;border:none;font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;transition:background .15s; }
.upload-btn:hover { background: var(--brand-dark); }

/* LOGIN PAGE */
.login-page { display:grid;place-items:center;min-height:100dvh;background:linear-gradient(135deg,#001f5b 0%,#003DA5 40%,#1e50a2 70%,#10b981 140%);background-size:180% 180%;animation:loginGradient 18s ease infinite;position:relative;overflow:hidden; }
.login-bg { position:absolute;inset:0;z-index:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.login-card { position:relative;z-index:1;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.45);border-radius:20px;padding:48px 44px;width:100%;max-width:440px;box-shadow:0 40px 100px rgba(0,0,0,.35);display:flex;flex-direction:column;gap:20px;animation:cardIn .55s ease both; }
.login-logo { display:flex;align-items:center;gap:16px; }
.logo-mark { display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:var(--brand);color:#fff;font-size:24px;font-weight:700;flex-shrink:0; }
.logo-mark.sm { width:34px;height:34px;border-radius:9px;font-size:16px; }
.logo-mark.logo-image { background:#fff;padding:4px;box-shadow:0 0 0 1px var(--border);overflow:hidden; }
.logo-mark.logo-image img { display:block;width:100%;height:100%;object-fit:contain; }
.login-brand { display:flex;flex-direction:column; }
.login-brand strong { font-size:20px;font-weight:700;color:var(--brand); }
.login-brand span { font-size:12px;color:var(--muted); }
.login-card h1 { font-size:22px;font-weight:700; }
.login-sub { color:var(--text2);font-size:14px;line-height:1.6; }
.btn-google { display:flex;align-items:center;justify-content:center;gap:12px;height:48px;border-radius:var(--radius);border:2px solid var(--border);background:var(--panel);color:var(--text);font-weight:500;font-size:15px;transition:border-color .15s,box-shadow .15s;cursor:pointer; }
.btn-google:hover { border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light); }
.auditor-signup { border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden; }
.auditor-signup summary { padding:10px 14px;cursor:pointer;color:var(--muted);font-size:13px; }
.auditor-signup form { display:flex;gap:8px;padding:10px 14px;border-top:1px solid var(--border); }
.auditor-signup input { flex:1;padding:0 10px;height:36px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text); }
.auditor-signup button { height:36px;padding:0 14px;border-radius:var(--radius-sm);background:var(--brand);color:#fff;border:none;cursor:pointer; }

/* SHARE PAGE */
.share-header { display:flex;align-items:center;justify-content:space-between;padding:14px 28px;background:var(--panel);border-bottom:1px solid var(--border); }
.logo-inline { display:flex;align-items:center;gap:10px;font-weight:600; }
.share-expiry { font-size:13px;color:var(--muted); }
.share-main { max-width:900px;margin:40px auto;padding:0 24px; }
.share-main h2 { margin-bottom:20px; }

/* APP SHELL */
.app-shell { display:flex;flex-direction:column;min-height:100dvh;animation:fadeIn .25s ease both; }
.app-header { position:sticky;top:0;z-index:100;height:var(--header-h);display:flex;align-items:center;gap:16px;padding:0 16px 0 0;background:var(--panel);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm); }
.header-left { display:flex;align-items:center;gap:4px;width:var(--sidebar-w);flex-shrink:0;padding-left:8px; }
.sidebar-toggle { border:none;background:transparent;color:var(--text2);display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);cursor:pointer; }
.sidebar-toggle:hover { background:var(--bg2); }
.header-logo { display:flex;align-items:center;gap:10px;padding:4px 8px;border-radius:var(--radius-sm); }
.header-logo:hover { background:var(--bg2); }
.logo-name { font-size:16px;font-weight:700;color:var(--brand);letter-spacing:-.3px; }
.header-search { flex:1;display:flex;align-items:center;gap:10px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:0 14px;max-width:520px; }
.header-search input { flex:1;height:36px;border:none;background:transparent;color:var(--text);outline:none;font-size:14px; }
.header-search:focus-within { border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light); }
.header-right { margin-left:auto;display:flex;align-items:center;gap:8px; }
.user-badge { display:flex;align-items:center;gap:10px;padding:0 12px; }
.avatar { width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;flex-shrink:0; }
.user-info { display:flex;flex-direction:column; }
.user-info span:first-child { font-size:13px;font-weight:500; }
.role-badge { display:inline-block;padding:1px 7px;border-radius:10px;font-size:11px;font-weight:500;width:fit-content; }
.role-badge.superadmin { background:#f0e6ff;color:#7c3aed; }
.role-badge.editor     { background:var(--green-light);color:#059669; }
.role-badge.viewer     { background:var(--brand-light);color:var(--brand); }
.role-badge.auditor    { background:var(--warn-light);color:#b45309; }
.role-badge.admin      { background:#ffe4e6;color:#be123c; }

/* APP BODY */
.app-body { display:flex;flex:1;overflow:hidden;height:calc(100dvh - var(--header-h)); }

/* SIDEBAR */
.sidebar { width:var(--sidebar-w);flex-shrink:0;background:var(--panel);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;overflow-x:hidden;transition:width .2s,transform .2s; }
.sidebar.collapsed { width:0;overflow:hidden; }
.sidebar-section { padding:16px 12px; }
.sidebar-section+.sidebar-section { border-top:1px solid var(--border); }
.sidebar-bottom { margin-top:auto; }
.sidebar-label { font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text3);margin-bottom:6px;padding-left:8px; }
.sidebar-nav { display:flex;flex-direction:column;gap:2px; }
.sidebar-item { display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--text2);border:none;background:transparent;width:100%;text-align:left;font-size:13px;font-weight:500;transition:background .12s,color .12s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer; }
.sidebar-item:hover { background:var(--bg2);color:var(--text); }
.sidebar-item.active { background:var(--brand-light);color:var(--brand); }
.sidebar-folders { display:flex;flex-direction:column;gap:2px;margin-top:4px; }
.sidebar-folder { display:flex;align-items:center;gap:8px;padding:7px 12px 7px 20px;border-radius:var(--radius-sm);color:var(--text2);border:none;background:transparent;width:100%;text-align:left;font-size:12px;cursor:pointer;transition:background .12s,color .12s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
.sidebar-folder:hover { background:var(--bg2);color:var(--text); }
.sidebar-folder.active { background:var(--brand-light);color:var(--brand); }
.storage-widget { margin:14px 4px 0;padding:14px 8px 0;border-top:1px solid var(--border);color:var(--text2); }
.storage-title { display:flex;align-items:center;gap:7px;font-size:12px;font-weight:700;color:var(--text);margin-bottom:10px; }
.storage-bar { height:7px;border-radius:999px;background:var(--bg2);overflow:hidden;border:1px solid var(--border); }
.storage-bar span { display:block;height:100%;width:0;border-radius:inherit;background:var(--green);transition:width .35s ease,background .2s ease; }
.storage-widget[data-tone="warn"] .storage-bar span { background:var(--warn); }
.storage-widget[data-tone="danger"] .storage-bar span { background:var(--danger); }
.storage-widget p { margin-top:7px;font-size:11px;line-height:1.3;color:var(--muted); }

/* MAIN AREA */
.main-area { flex:1;overflow-y:auto;display:flex;flex-direction:column; }
.main-toolbar { display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 20px;background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10; }
.view-title { font-size:18px;font-weight:700;flex:1; }
.toolbar-actions { display:flex;align-items:center;gap:8px;flex-wrap:wrap; }
.view-toggle { display:flex;border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden; }
.view-toggle .icon-btn { border-radius:0;width:34px;height:34px; }
.view-toggle .icon-btn+.icon-btn { border-left:1px solid var(--border); }
.audit-summary { display:flex;align-items:center;gap:18px;justify-content:space-between;margin:18px 20px 0;padding:16px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--panel);box-shadow:var(--shadow-sm); }
.audit-summary strong { display:block;font-size:14px;color:var(--text); }
.audit-summary span { display:block;margin-top:3px;font-size:12px;color:var(--muted); }
.audit-progress { flex:0 0 min(320px,40%);height:9px;border-radius:999px;background:var(--bg2);border:1px solid var(--border);overflow:hidden; }
.audit-progress span { display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,var(--brand),var(--green));transition:width .35s ease; }

/* BREADCRUMBS */
.breadcrumbs { display:flex;align-items:center;gap:4px;flex:1;min-width:0;flex-wrap:wrap; }
.crumb-btn { background:none;border:none;color:var(--text2);font-size:13px;padding:4px 8px;border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;max-width:160px;overflow:hidden;text-overflow:ellipsis; }
.crumb-btn:hover { background:var(--bg2);color:var(--brand); }
.crumb-btn.current { color:var(--text);font-weight:500;cursor:default; }
.crumb-sep { color:var(--text3);font-size:13px; }

/* DROP ZONE */
.drop-zone { flex:1;position:relative;padding:20px;min-height:200px; }
.drop-zone.dragging .drop-overlay { display:flex!important; }
.drop-overlay { position:absolute;inset:0;z-index:10;display:none;align-items:center;justify-content:center;background:rgba(0,61,165,.08);border:2px dashed var(--brand);border-radius:var(--radius);backdrop-filter:blur(2px); }
.drop-message { display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--brand);font-weight:500; }

/* GRID VIEW */
.file-list.grid-view { display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px; }
.file-list.grid-view .file-card { background:linear-gradient(180deg,var(--panel),rgba(255,255,255,.96));border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s,border-color .18s,transform .18s;position:relative; }
[data-theme="dark"] .file-list.grid-view .file-card { background:linear-gradient(180deg,var(--panel),#111a33); }
.file-list.grid-view .file-card:hover { border-color:var(--brand-mid);box-shadow:0 16px 40px rgba(0,61,165,.16);transform:translateY(-3px); }
.file-list.grid-view .file-card.selected { border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-light); }
.file-card.drag-source { opacity:.55; }
.file-card.drop-target { outline:2px dashed var(--brand);outline-offset:-6px;background:var(--brand-light)!important; }
.file-card-icon { height:110px;display:flex;align-items:center;justify-content:center;background:var(--bg);font-size:48px; }
.file-card-body { padding:12px;flex:1; }
.file-card-name { font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
.file-card-meta { font-size:11px;color:var(--muted);margin-top:2px; }
.file-card-check { position:absolute;top:8px;left:8px;width:20px;height:20px;border-radius:5px;border:2px solid var(--border2);background:var(--panel);display:flex;align-items:center;justify-content:center;transition:background .12s,border-color .12s,opacity .12s;opacity:0; }
.file-card:hover .file-card-check { opacity:1; }
.file-card.selected .file-card-check { background:var(--brand);border-color:var(--brand);color:#fff;opacity:1; }
.file-card-menu { position:absolute;top:8px;right:8px;width:28px;height:28px;border-radius:var(--radius-sm);background:var(--panel);border:1px solid var(--border);color:var(--muted);display:flex;align-items:center;justify-content:center;font-size:16px;opacity:0;transition:opacity .12s;cursor:pointer; }
.file-card:hover .file-card-menu { opacity:1; }
.file-card-menu:hover { background:var(--bg2);border-color:var(--border2); }

/* LIST VIEW */
.file-list.list-view { display:flex;flex-direction:column; }
.file-list-header { display:grid;grid-template-columns:1fr auto auto;gap:12px;padding:9px 16px;background:var(--bg2);border-bottom:1px solid var(--border);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted); }
.file-list-header button { border:none;background:transparent;color:inherit;text-align:left;font-weight:700;cursor:pointer; }
.file-list.list-view .file-card { display:grid;grid-template-columns:20px 36px 1fr auto auto;align-items:center;gap:12px;background:var(--panel);border-bottom:1px solid var(--border);padding:11px 16px;transition:background .15s,transform .15s,box-shadow .15s; }
.file-list.list-view .file-card:hover { background:var(--bg);transform:translateX(2px);box-shadow:inset 3px 0 0 var(--brand); }
.file-list.list-view .file-card.selected { background:var(--brand-light); }
.file-list.list-view .file-card.is-empty { opacity:.58; }
.file-list.list-view .file-card.is-empty:hover { opacity:.78; }
.file-list.list-view .file-card-icon { height:auto;background:none;font-size:22px; }
.file-list.list-view .file-card-check { position:static;border-radius:4px; }
.file-list.list-view .file-card-body { min-width:0;display:flex;align-items:center;gap:12px; }
.file-list.list-view .file-card-meta { margin-top:0;flex-shrink:0; }
.file-list.list-view .file-card-menu { position:static;opacity:1; }
.file-card-size { font-size:11px;color:var(--text3);flex-shrink:0; }
.download-link { font-size:12px;color:var(--brand);text-decoration:none;padding:4px 10px;border-radius:var(--radius-sm);border:1px solid var(--brand-light);white-space:nowrap; }
.download-link:hover { background:var(--brand-light); }

/* Empty state */
.empty-state { display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:60px 20px;color:var(--text3); }
.empty-state svg { opacity:.4; }

/* ACTIVITY PANEL */
.activity-panel { width:260px;flex-shrink:0;border-left:1px solid var(--border);background:var(--panel);display:flex;flex-direction:column;overflow:hidden;transition:width .18s ease; }
.activity-panel.collapsed { width:0;border-left:none; }
.activity-header { display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border);font-size:13px;font-weight:600;color:var(--text2); }
.activity-actions { display:flex;align-items:center;gap:4px; }
.activity-toggle-icon { transition:transform .18s ease; }
.activity-panel.collapsed .activity-header,
.activity-panel.collapsed .activity-list { display:none; }
.activity-floating-toggle { position:fixed;top:calc(var(--header-h) + 62px);right:12px;z-index:120;width:34px;height:34px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel);color:var(--brand);box-shadow:var(--shadow-md);font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center; }
.activity-floating-toggle:hover { background:var(--brand-light);border-color:var(--brand-mid); }
.activity-list { overflow-y:auto;flex:1; }
.activity-entry { padding:12px 16px;border-bottom:1px solid var(--border);font-size:12px; }
.activity-message { color:var(--text);font-size:12px;line-height:1.45; }
.activity-message strong { color:var(--text);font-weight:700; }
.activity-message em { font-style:italic; }
.activity-entry .activity-user { color:var(--brand);margin-top:2px; }
.activity-entry .activity-time { color:var(--text3);font-size:11px;margin-top:2px; }

/* ADMIN */
.admin-grid { display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:20px; }
.admin-card { background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px; }
.admin-card h3 { margin-bottom:16px;font-size:15px;font-weight:600; }
.roles-panel { display:flex;flex-direction:column;gap:8px; }
.role-row { display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg); }
.role-row strong { display:block;font-size:13px; }
.role-row small { font-size:11px;color:var(--muted); }
.role-row select { height:32px;padding:0 10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel);color:var(--text);font-size:12px; }
.audit-log { display:flex;flex-direction:column;max-height:480px;overflow-y:auto; }
.timeline-entry { padding:10px 0;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:2px; }
.timeline-entry strong { font-size:12px;font-weight:600; }
.timeline-entry span { font-size:12px;color:var(--muted); }
.timeline-entry small { font-size:11px;color:var(--text3); }

/* CONTEXT MENU */
.context-menu { position:fixed;z-index:9999;min-width:190px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:6px;overflow:hidden; }
.ctx-item { display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--text);font-size:13px;text-align:left;transition:background .1s;cursor:pointer; }
.ctx-item:hover { background:var(--bg2); }
.ctx-item.danger { color:var(--danger); }
.ctx-item.danger:hover { background:var(--danger-light); }
.ctx-sep { border:none;border-top:1px solid var(--border);margin:4px 0; }

/* PERMISSIONS MODAL */
.perms-dialog { max-width:680px;width:94vw;box-shadow:var(--shadow-lg); }
.perms-dialog form { display:flex;flex-direction:column;max-height:85vh; }
.modal-header { padding:20px 24px 16px;border-bottom:1px solid var(--border);position:relative; }
.modal-header h3 { font-size:17px;font-weight:700; }
.modal-header p { margin-top:4px;font-size:13px;color:var(--muted); }
.modal-close { position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:var(--radius-sm);background:transparent;border:none;color:var(--muted);display:flex;align-items:center;justify-content:center;cursor:pointer; }
.modal-close:hover { background:var(--bg2); }
.perms-legend { display:grid;grid-template-columns:1fr 84px 84px 84px;padding:10px 24px;background:var(--bg);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text3);border-bottom:1px solid var(--border); }
.perms-legend span:not(:first-child) { text-align:center; }
.perms-rows { overflow-y:auto; }
.perms-row { display:grid;grid-template-columns:1fr 84px 84px 84px;align-items:center;padding:10px 24px;border-bottom:1px solid var(--border); }
.perms-row:last-child { border-bottom:none; }
.perms-user strong { display:block;font-size:13px; }
.perms-user small { font-size:11px;color:var(--muted); }
.perms-cb { display:flex;justify-content:center; }
.perms-cb input { width:18px;height:18px;cursor:pointer;accent-color:var(--brand); }
.perms-note { display:inline-block;margin-left:6px;font-size:10px;color:var(--muted); }
.modal-footer { display:flex;align-items:center;justify-content:flex-end;gap:10px;padding:16px 24px;border-top:1px solid var(--border);background:var(--bg); }

/* TOAST */
.toast { position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:#1e293b;color:#fff;padding:12px 20px;border-radius:var(--radius);font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:10000;white-space:nowrap; }
.toast.show { opacity:1;transform:translateX(-50%) translateY(0); }

/* PREMIUM V2 */
@keyframes loginGradient { 0%,100%{background-position:0% 50%} 50%{background-position:100% 50%} }
@keyframes cardIn { from{opacity:0;transform:translateY(18px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes shimmer { 100%{transform:translateX(100%)} }
@keyframes spin { to{transform:rotate(360deg)} }
.file-type-badge { display:inline-flex;align-items:center;justify-content:center;width:54px;height:54px;border-radius:12px;font-size:15px;font-weight:800;letter-spacing:.04em;background:var(--bg2); }
.file-type-badge.pdf { color:#ef4444;background:#fee2e2; }
.file-type-badge.doc { color:#2563eb;background:#dbeafe; }
.file-type-badge.xls { color:#059669;background:#d1fae5; }
.file-type-badge.ppt { color:#f59e0b;background:#fef3c7; }
.type-icon { filter:drop-shadow(0 8px 16px rgba(15,23,42,.12)); }
.skeleton-card { padding:16px;gap:12px;min-height:168px; }
.skeleton-icon,.skeleton-line { position:relative;overflow:hidden;background:var(--bg2);border-radius:12px; }
.skeleton-icon { width:60px;height:60px;margin:24px auto 8px; }
.skeleton-line { height:12px;width:80%;margin:0 auto; }
.skeleton-line.short { width:48%; }
.skeleton-icon::after,.skeleton-line::after { content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,rgba(255,255,255,.45),transparent);animation:shimmer 1.4s infinite; }
.share-form { display:flex;flex-direction:column;gap:14px;padding:20px 24px; }
.share-form label { display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text2); }
.share-form input,.share-form select { height:38px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);color:var(--text);padding:0 10px; }
.share-folder-choices { display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px;max-height:260px;overflow:auto; }
.share-folder-choice { display:flex!important;flex-direction:row!important;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg); }
.share-folder-loading { grid-column:1 / -1;display:flex;align-items:center;gap:10px;padding:18px;color:var(--muted); }
.spinner { width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite; }
.share-created-url { display:block;padding:10px;border-radius:var(--radius-sm);background:var(--brand-light);color:var(--brand);word-break:break-all; }
.share-link-row { display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border); }
.share-link-row strong,.share-link-row small { display:block; }
.share-links-list { max-height:520px;overflow:auto; }
.preview-dialog { width:min(1400px,92vw);height:min(900px,88vh);box-shadow:var(--shadow-lg);padding:0;border:0;border-radius:var(--radius-md);overflow:hidden; }
.preview-header { display:flex;align-items:center;justify-content:space-between;padding:12px 20px;border-bottom:1px solid var(--border);gap:12px;min-height:56px; }
.preview-meta { display:flex;flex-direction:column;gap:2px;min-width:0;flex:1; }
.preview-meta h3 { margin:0;font-size:0.95rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
.preview-info { font-size:0.75rem;color:var(--text-muted);white-space:nowrap; }
.preview-actions { display:flex;align-items:center;gap:8px;flex-shrink:0; }
.btn-sm { padding:6px 14px;font-size:0.8rem; }
.preview-body { height:calc(100% - 56px);background:var(--bg);display:flex;align-items:center;justify-content:center;padding:0;overflow:auto;position:relative; }
.preview-body iframe,.preview-body img { width:100%;height:100%;border:0;object-fit:contain;border-radius:0;background:#fff; }
.preview-body video,.preview-body audio { max-width:100%;max-height:100%;outline:none; }
.preview-body video { width:100%;height:100%;background:#000; }
.preview-body audio { width:min(600px,90%); }
.preview-body pre { width:100%;height:100%;margin:0;padding:20px;font-family:'JetBrains Mono','Fira Code',monospace;font-size:0.82rem;line-height:1.6;overflow:auto;white-space:pre-wrap;word-break:break-word;background:var(--surface);color:var(--text);text-align:left;align-self:stretch; }
.preview-body .preview-fallback { display:flex;flex-direction:column;align-items:center;gap:16px;padding:40px;text-align:center;color:var(--muted); }
.preview-body .preview-fallback svg { opacity:0.4; }
.preview-body .preview-fallback p { margin:0;font-size:0.95rem; }
.preview-loading { position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:32px;text-align:center;background:var(--bg);color:var(--muted); }
.preview-loading p { margin:0;font-size:0.95rem;font-weight:500;color:var(--text2); }
.preview-loading .btn-primary { margin-top:4px; }
.preview-spinner { width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin .7s linear infinite; }
.preview-spinner.slow { animation-duration:1.1s; }
.preview-body .is-loading { opacity:0;pointer-events:none; }
@keyframes spin { to { transform:rotate(360deg); } }
.share-page { min-height:100dvh;background:var(--bg);animation:fadeIn .25s ease both; }
.share-intro { color:var(--muted);margin-bottom:16px; }
.share-breadcrumbs { margin-bottom:16px; }

/* IMPORT DROPDOWN */
.import-dropdown { position:relative;display:inline-flex; }
.import-dropdown .upload-btn { gap:6px; }
.import-chevron { margin-left:2px;transition:transform .15s; }
.import-dropdown.open .import-chevron { transform:rotate(180deg); }
.import-menu { position:absolute;top:calc(100% + 4px);left:0;z-index:200;min-width:220px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:6px;display:flex;flex-direction:column;gap:2px; }
.import-menu-item { display:flex;align-items:center;gap:10px;width:100%;padding:9px 12px;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--text);font-size:13px;text-align:left;cursor:pointer;transition:background .1s;white-space:nowrap; }
.import-menu-item:hover { background:var(--bg2); }
.import-menu-item input { position:absolute;width:0;height:0;opacity:0; }

/* IMPORT PROGRESS MODAL */
.import-progress-dialog { max-width:480px;width:90vw;box-shadow:var(--shadow-lg); }
.import-progress-body { padding:20px 24px 24px; }
.import-progress-bar { height:10px;border-radius:999px;background:var(--bg2);border:1px solid var(--border);overflow:hidden; }
.import-progress-bar span { display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,var(--brand),var(--green));transition:width .25s ease; }
.import-progress-detail { margin-top:12px;font-size:13px;color:var(--text);font-weight:500; }
.import-progress-file { margin-top:4px;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }

/* FORMAT ALERT */
.format-alert-list { max-height:280px;overflow-y:auto;padding:12px 24px; }
.format-alert-item { display:flex;align-items:center;gap:8px;padding:6px 0;border-bottom:1px solid var(--border);font-size:13px; }
.format-alert-item:last-child { border-bottom:none; }
.format-alert-ext { display:inline-block;padding:2px 8px;border-radius:4px;background:var(--danger-light);color:var(--danger);font-size:11px;font-weight:600; }
.format-alert-name { flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text2); }

.multi-folder-dialog { max-width:760px;width:94vw;box-shadow:var(--shadow-lg); }
.multi-folder-dialog form { display:flex;flex-direction:column;max-height:88vh; }
.multi-folder-body { padding:18px 24px 8px;overflow-y:auto; }
.multi-folder-drop-zone { min-height:220px;border:2px dashed var(--brand-mid);border-radius:var(--radius);background:var(--brand-light);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:var(--brand);text-align:center;transition:border-color .15s,background .15s,transform .15s; }
.multi-folder-drop-zone strong { font-size:17px;color:var(--brand); }
.multi-folder-drop-zone span { font-size:13px;color:var(--text2); }
.multi-folder-drop-zone.dragging { border-color:var(--brand);background:rgba(0,61,165,.14);transform:scale(1.01); }
.multi-folder-summary { margin-top:14px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);font-size:14px;color:var(--text);font-weight:600; }
.multi-folder-summary small { display:block;margin-top:4px;color:var(--muted);font-weight:400; }
.multi-folder-list { margin-top:10px;display:flex;flex-direction:column;gap:6px;max-height:180px;overflow-y:auto; }
.multi-folder-row { display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel);font-size:13px; }
.multi-folder-row strong { overflow:hidden;text-overflow:ellipsis;white-space:nowrap; }
.multi-folder-row span { color:var(--muted);white-space:nowrap; }

/* RESPONSIVE */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }
  .sidebar { position:fixed;top:var(--header-h);left:0;bottom:0;z-index:50;width:260px;transform:translateX(-100%); }
  .sidebar.open { transform:translateX(0);box-shadow:var(--shadow-lg); }
  .header-left { width:auto; }
  .user-info { display:none; }
  .activity-panel { position:fixed;left:0;right:0;bottom:0;top:auto;width:100%;height:45dvh;z-index:80;border-left:none;border-top:1px solid var(--border);border-radius:18px 18px 0 0;box-shadow:var(--shadow-lg); }
  .admin-grid { grid-template-columns:1fr; }
  .header-search { max-width:220px; }
  .share-folder-choices { grid-template-columns:1fr; }
}
@media (max-width: 480px) {
  .header-search { display:none; }
  .file-list.grid-view { grid-template-columns:repeat(2,minmax(0,1fr));gap:10px; }
  .audit-summary { align-items:flex-start;flex-direction:column;margin:12px;padding:14px; }
  .audit-progress { flex:none;width:100%; }
  .login-card { margin:16px;padding:32px 24px; }
}
@media (min-width: 769px) and (max-width: 1100px) {
  .file-list.grid-view { grid-template-columns:repeat(3,minmax(0,1fr)); }
}

/* ================================================================
   FILE SHARE PUBLIC PAGE
   ================================================================ */
.file-share-page { min-height:100dvh;display:flex;flex-direction:column;background:var(--bg); }
.file-share-main { flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px; }
.file-share-card { background:var(--card);border:1px solid var(--border);border-radius:16px;padding:40px;max-width:90vw;width:100%;text-align:center;box-shadow:var(--shadow); }
.file-share-card h2 { margin:16px 0 8px;font-size:1.25rem;color:var(--text); }
.file-share-meta { color:var(--muted);font-size:.875rem;margin-bottom:20px; }
.file-share-icon { display:flex;justify-content:center;margin-bottom:8px; }
.file-share-icon svg { width:48px;height:48px;color:var(--primary); }
.file-share-preview { margin:20px 0; }
.file-share-iframe { width:100%;height:70vh;min-height:400px;border:1px solid var(--border);border-radius:8px; }
.file-share-img { max-width:100%;max-height:70vh;border-radius:8px;border:1px solid var(--border); }
.file-share-video { width:100%;max-height:70vh;border-radius:8px;border:1px solid var(--border);background:#000; }
.file-share-audio { width:100%;margin:16px 0; }
.file-share-text { text-align:left;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:16px;max-height:70vh;overflow:auto;font-size:.85rem;line-height:1.5;white-space:pre-wrap;word-break:break-word; }
.file-share-spinner { display:flex;align-items:center;justify-content:center;gap:12px;padding:40px;color:var(--muted); }
.file-share-fallback { text-align:center;color:var(--muted);padding:24px;font-style:italic; }
.file-share-download { display:inline-flex;align-items:center;gap:8px;padding:12px 28px;font-size:1rem;text-decoration:none;margin-top:16px; }
.file-share-footer { text-align:center;padding:24px;color:var(--muted);font-size:.8rem; }
.file-share-expired-card { display:flex;flex-direction:column;align-items:center;gap:16px; }
.file-share-expired-card h2 { margin:0; }
.file-share-expired-card p { color:var(--muted);margin:0; }
.share-active { color:var(--success);font-weight:600; }
.share-inactive { color:var(--muted); }
@media (max-width: 600px) {
  .file-share-card { padding:24px 16px;max-width:100vw;border-radius:0;border-left:none;border-right:none; }
  .file-share-main { padding:20px 0; }
  .file-share-iframe { height:60vh;min-height:280px; }
  .file-share-text { max-height:50vh; }
}

/* ================================================================
   CREATION DATE
   ================================================================ */
.creation-date-banner { padding:8px 20px;background:var(--bg);border-top:1px solid var(--border);color:var(--text3);font-size:12px;text-align:center; }
.file-card-creation-date { font-size:10px;color:var(--green);margin-top:2px; }
.file-list.list-view .file-card { grid-template-columns:20px 36px 1fr auto auto auto auto; }
.file-list.list-view .file-card-creation { font-size:11px;color:var(--green);white-space:nowrap; }
.file-list-header { grid-template-columns:1fr auto auto auto auto; }