*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

:root {
  --white:#FFFFFF;--gray-25:#FCFCFD;--gray-50:#F9FAFB;--gray-100:#F2F4F7;--gray-200:#EAECF0;
  --gray-300:#D0D5DD;--gray-400:#98A2B3;--gray-500:#667085;--gray-600:#475467;--gray-700:#344054;
  --gray-800:#1D2939;--gray-900:#101828;--brand-50:#F9F5FF;--brand-500:#7F56D9;--brand-600:#6941C6;--brand-700:#53389E;
  --shadow-xs:0px 1px 2px rgba(16,24,40,.05);--shadow-sm:0px 1px 3px rgba(16,24,40,.1),0px 1px 2px rgba(16,24,40,.06);
  --shadow-lg:0px 12px 16px -4px rgba(16,24,40,.08),0px 4px 6px -2px rgba(16,24,40,.03);
}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.5;-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden;}
.app-layout{display:flex;height:100vh;background:var(--white);}

/* SIDEBAR */
.sidebar{width:280px;min-width:280px;border-right:1px solid var(--gray-200);display:flex;flex-direction:column;background:var(--white);height:100vh;overflow-y:auto;}
.sidebar-header{padding:24px 24px 0;display:flex;align-items:center;justify-content:space-between;}
.sidebar-logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;color:var(--gray-900);}
.logo-icon{width:32px;height:32px;background:var(--gray-900);border-radius:8px;display:flex;align-items:center;justify-content:center;}
.logo-icon svg{color:#fff;}
.sidebar-nav{padding:16px;display:flex;flex-direction:column;gap:2px;}
.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:8px;font-size:14px;font-weight:500;color:var(--gray-700);cursor:pointer;transition:background .15s;text-decoration:none;}
.nav-item:hover{background:var(--gray-50);}
.nav-item.active{background:var(--gray-50);color:var(--gray-900);font-weight:600;}
.nav-item svg{color:var(--gray-500);flex-shrink:0;}
.nav-item.active svg{color:var(--gray-700);}
.sidebar-divider{height:1px;background:var(--gray-200);margin:8px 16px;}
.file-browser-section{padding:8px 16px;}
.file-browser-header{display:flex;align-items:center;justify-content:space-between;padding:0 12px;margin-bottom:4px;}
.file-browser-label{font-size:11px;font-weight:600;color:var(--gray-500);letter-spacing:.06em;text-transform:uppercase;}
.file-browser-menu{width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:6px;cursor:pointer;color:var(--gray-400);border:none;background:none;}
.file-browser-menu:hover{background:var(--gray-50);}
.folder-tree{display:flex;flex-direction:column;gap:2px;}
.folder-item{display:flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;font-size:14px;font-weight:500;color:var(--gray-700);cursor:pointer;transition:background .15s;}
.folder-item:hover{background:var(--gray-50);}
.folder-item svg{color:var(--gray-400);flex-shrink:0;}
.folder-name{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.folder-menu{width:24px;height:24px;border:none;background:none;color:var(--gray-400);border-radius:6px;display:none;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;padding:0;}
.folder-item:hover .folder-menu{display:flex;}
.folder-menu:hover{background:var(--gray-200);color:var(--gray-700);}
.sidebar-footer{margin-top:auto;}
.storage-section{padding:18px 24px;border-top:1px solid var(--gray-200);}
.account-box{display:flex;align-items:center;gap:10px;padding:14px 20px;border-top:1px solid var(--gray-200);}
.account-meta{min-width:0;}
.account-name{font-size:13px;font-weight:600;color:var(--gray-800);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.account-email{font-size:12px;color:var(--gray-500);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.logo-icon-sm{width:26px;height:26px;border-radius:7px;}

/* Mobile top bar + drawer */
.topbar{display:none;}
.sidebar-backdrop{display:none;}
@media (max-width:900px){
  .topbar{display:flex;align-items:center;gap:12px;position:fixed;top:0;left:0;right:0;height:58px;padding:0 16px;background:#fff;border-bottom:1px solid var(--gray-200);z-index:130;}
  .topbar-menu{width:40px;height:40px;border:none;background:none;color:var(--gray-700);display:flex;align-items:center;justify-content:center;border-radius:8px;cursor:pointer;}
  .topbar-menu:hover{background:var(--gray-50);}
  .topbar-title{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;}
  .sidebar{display:flex !important;position:fixed;top:0;left:0;bottom:0;transform:translateX(-100%);transition:transform .22s ease;z-index:140;box-shadow:0 12px 40px rgba(16,24,40,.18);}
  .sidebar.open{transform:none;}
  .sidebar-backdrop:not([hidden]){display:block;position:fixed;inset:0;background:rgba(16,24,40,.45);z-index:135;}
  .main-content{padding-top:58px;}
}
.storage-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.storage-label{font-size:14px;font-weight:600;color:var(--gray-700);}
.storage-bar-bg{width:100%;height:8px;background:var(--gray-200);border-radius:4px;overflow:hidden;margin-bottom:8px;}
.storage-bar-fill{height:100%;background:var(--gray-900);border-radius:4px;width:0;transition:width .3s;}
.storage-text{font-size:13px;color:var(--gray-500);}

/* MAIN */
.main-content{flex:1;overflow-y:auto;background:var(--white);position:relative;}
.main-header{padding:28px 32px 0;}
.main-title{font-size:24px;font-weight:600;color:var(--gray-900);margin-bottom:24px;}
.create-actions{display:flex;gap:16px;margin-bottom:32px;padding:0 32px;flex-wrap:wrap;}
.create-card{display:flex;align-items:center;gap:16px;padding:16px 20px;border:1px solid var(--gray-200);border-radius:12px;cursor:pointer;background:var(--white);transition:all .15s;min-width:200px;}
.create-card:hover{border-color:var(--gray-300);box-shadow:var(--shadow-xs);}
.create-card-icon{width:40px;height:40px;border:1px solid var(--gray-200);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--gray-700);background:var(--white);}
.create-card-text{font-size:14px;font-weight:600;color:var(--gray-700);}
.create-card-plus{margin-left:auto;color:var(--gray-400);}
.file-explorer{padding:0 32px 32px;}
.file-explorer-title{font-size:18px;font-weight:600;color:var(--gray-900);margin-bottom:16px;}
.file-tabs{display:flex;gap:4px;border-bottom:1px solid var(--gray-200);}
.file-tab{padding:8px 16px;font-size:14px;font-weight:500;color:var(--gray-500);cursor:pointer;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;background:none;transition:color .15s;}
.file-tab:hover{color:var(--gray-700);}
.file-tab.active{color:var(--gray-900);font-weight:600;border-bottom-color:var(--gray-900);}
.search-input-wrap{position:relative;width:240px;}
.search-input-wrap svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--gray-400);}
.search-input{width:100%;padding:8px 12px 8px 36px;border:1px solid var(--gray-300);border-radius:8px;font-size:14px;font-family:inherit;color:var(--gray-900);outline:none;background:var(--white);}
.search-input::placeholder{color:var(--gray-400);}
.search-input:focus{border-color:var(--gray-400);box-shadow:0 0 0 3px rgba(0,0,0,.05);}
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--gray-500);margin:16px 0 8px;min-height:18px;}
.breadcrumb a{color:var(--gray-600);text-decoration:none;cursor:pointer;}
.breadcrumb a:hover{text-decoration:underline;}

.file-list-table{width:100%;border-collapse:collapse;margin-top:8px;}
.file-list-table thead th{text-align:left;padding:12px 16px;font-size:12px;font-weight:500;color:var(--gray-500);border-bottom:1px solid var(--gray-200);background:var(--gray-50);}
.file-list-table thead th:first-child{border-top-left-radius:8px;}
.file-list-table thead th:last-child{border-top-right-radius:8px;}
.file-list-table tbody tr{border-bottom:1px solid var(--gray-200);transition:background .1s;}
.file-list-table tbody tr:hover{background:var(--gray-50);}
.file-list-table td{padding:14px 16px;font-size:14px;vertical-align:middle;}
.file-cell{display:flex;align-items:center;gap:12px;cursor:pointer;}
.file-icon-small{width:32px;height:32px;border:1px solid var(--gray-200);border-radius:6px;display:flex;align-items:center;justify-content:center;color:var(--gray-500);flex-shrink:0;}
.file-name-text{font-weight:500;color:var(--gray-900);}
.file-size-text{font-size:13px;color:var(--gray-500);margin-top:1px;}
.pill{display:inline-block;font-size:11px;font-weight:600;padding:1px 7px;border-radius:10px;margin-left:8px;vertical-align:middle;}
.pill-private{background:#FEF0C7;color:#B54708;}
.uploader-cell{display:flex;align-items:center;gap:10px;}
.avatar{width:32px;height:32px;border-radius:50%;flex-shrink:0;background:var(--gray-200);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;color:var(--gray-600);}
.uploader-name{font-size:13px;font-weight:500;color:var(--gray-700);}
.uploader-email{font-size:12px;color:var(--gray-500);}
.row-menu{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:6px;cursor:pointer;color:var(--gray-400);background:none;border:none;}
.row-menu:hover{background:var(--gray-100);}
.empty-state{padding:48px;text-align:center;color:var(--gray-400);font-size:14px;}

.avatar-amelie{background:#FEE4E2;color:#B42318;}
.avatar-ammar{background:#D1FADF;color:#027A48;}
.avatar-sienna{background:#E0EAFF;color:#3538CD;}
.avatar-olly{background:#FEF0C7;color:#B54708;}
.avatar-mathilde{background:#FCE7F6;color:#C11574;}

/* Drop zone */
.main-content.dragover::after{content:"Drop files to upload";position:absolute;inset:12px;border:2px dashed var(--brand-500);border-radius:16px;background:rgba(127,86,217,.06);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;color:var(--brand-600);z-index:20;pointer-events:none;}

/* Upload tray */
.upload-tray{position:fixed;right:24px;bottom:24px;width:340px;background:#fff;border:1px solid var(--gray-200);border-radius:12px;box-shadow:var(--shadow-lg);z-index:60;overflow:hidden;}
.upload-tray-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--gray-900);color:#fff;font-size:14px;font-weight:600;}
.upload-tray-head button{background:none;border:none;color:#fff;font-size:20px;cursor:pointer;line-height:1;}
#uploadTrayBody{max-height:260px;overflow-y:auto;}
.up-item{padding:10px 16px;border-bottom:1px solid var(--gray-100);font-size:13px;}
.up-item-name{display:flex;justify-content:space-between;gap:8px;color:var(--gray-700);margin-bottom:6px;}
.up-item-name span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.up-bar{height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden;}
.up-bar-fill{height:100%;width:0;background:var(--brand-500);transition:width .2s;}
.up-bar-fill.done{background:#12B76A;}
.up-bar-fill.err{background:#F04438;}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(16,24,40,.5);display:flex;align-items:center;justify-content:center;z-index:80;padding:20px;}
.modal-box{background:#fff;border-radius:12px;width:100%;max-width:440px;box-shadow:var(--shadow-lg);overflow:hidden;}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--gray-200);}
.modal-head h3{font-size:16px;font-weight:600;}
.modal-head button{background:none;border:none;font-size:22px;cursor:pointer;color:var(--gray-400);line-height:1;}
.modal-body{padding:20px;}
.modal-body label{display:block;font-size:13px;font-weight:500;color:var(--gray-700);margin-bottom:6px;}
.modal-body input,.modal-body select{width:100%;padding:10px 12px;border:1px solid var(--gray-300);border-radius:8px;font-size:14px;font-family:inherit;margin-bottom:14px;outline:none;}
.modal-body input:focus,.modal-body select:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(127,86,217,.12);}
.btn{padding:10px 16px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;border:1px solid transparent;font-family:inherit;}
.btn-primary{background:var(--gray-900);color:#fff;}
.btn-primary:hover{background:var(--gray-800);}
.btn-ghost{background:#fff;border-color:var(--gray-300);color:var(--gray-700);}
.btn-ghost:hover{background:var(--gray-50);}
.btn-danger{background:#D92D20;color:#fff;}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:6px;}
.share-link-box{display:flex;gap:8px;margin:8px 0 14px;}
.share-link-box input{margin:0;}
.share-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--gray-100);font-size:13px;}
.share-row .link-btn{color:#D92D20;}

/* Context menu */
.ctx-menu{position:fixed;background:#fff;border:1px solid var(--gray-200);border-radius:10px;box-shadow:var(--shadow-lg);z-index:90;min-width:170px;padding:6px;}
.ctx-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:7px;font-size:14px;color:var(--gray-700);cursor:pointer;}
.ctx-item:hover{background:var(--gray-50);}
.ctx-item.danger{color:#D92D20;}
.ctx-sep{height:1px;background:var(--gray-100);margin:4px 0;}

/* Preview lightbox */
.preview-overlay{position:fixed;inset:0;z-index:200;background:rgba(16,24,40,.94);display:flex;flex-direction:column;}
.pv-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 18px;color:#fff;flex-shrink:0;}
.pv-title{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw;}
.pv-actions{display:flex;align-items:center;gap:6px;flex-shrink:0;}
.pv-btn{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:#fff;border-radius:8px;cursor:pointer;transition:background .15s;}
.pv-btn:hover{background:rgba(255,255,255,.14);}
.pv-body{flex:1;position:relative;display:flex;align-items:center;justify-content:center;padding:8px 24px 28px;min-height:0;}
.pv-stage{flex:1;display:flex;align-items:center;justify-content:center;height:100%;min-height:0;color:#fff;}
.pv-img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,.5);}
.pv-frame{width:min(1000px,94vw);height:100%;border:none;background:#fff;border-radius:10px;box-shadow:0 8px 40px rgba(0,0,0,.5);}
.pv-media{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,.5);background:#000;}
.pv-audio{background:#fff;border-radius:14px;padding:28px;min-width:min(460px,86vw);text-align:center;box-shadow:0 8px 40px rgba(0,0,0,.4);}
.pv-audio-name{font-size:14px;font-weight:600;color:var(--gray-800);margin-bottom:16px;word-break:break-word;}
.pv-audio audio{width:100%;}
.pv-text{background:#fff;color:var(--gray-900);padding:22px;border-radius:10px;width:min(900px,94vw);max-height:100%;overflow:auto;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;line-height:1.55;text-align:left;box-shadow:0 8px 40px rgba(0,0,0,.5);}
.pv-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:none;background:rgba(255,255,255,.12);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .15s;z-index:2;}
.pv-nav:hover{background:rgba(255,255,255,.24);}
.pv-nav:disabled{opacity:.25;cursor:default;}
.pv-prev{left:18px;}
.pv-next{right:18px;}
.pv-msg{color:#fff;text-align:center;font-size:15px;opacity:.92;}
.pv-spinner{width:42px;height:42px;border:3px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:pvspin .8s linear infinite;}
@keyframes pvspin{to{transform:rotate(360deg);}}
@media (max-width:900px){.pv-title{max-width:42vw;}.pv-frame{width:96vw;}.pv-nav{width:40px;height:40px;}}

/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--gray-900);color:#fff;padding:12px 20px;border-radius:10px;font-size:14px;z-index:100;box-shadow:var(--shadow-lg);}
.toast.err{background:#D92D20;}

/* Auth */
.auth-body{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--gray-50);overflow:auto;}
.auth-card{background:#fff;border:1px solid var(--gray-200);border-radius:16px;box-shadow:var(--shadow-sm);padding:36px;width:100%;max-width:400px;}
.share-card{text-align:center;}
.auth-logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:16px;margin-bottom:24px;justify-content:center;}
.auth-title{font-size:22px;font-weight:600;margin-bottom:6px;}
.auth-sub{font-size:14px;color:var(--gray-500);margin-bottom:24px;}
.auth-label{display:block;font-size:13px;font-weight:500;color:var(--gray-700);margin-bottom:6px;}
.auth-input{width:100%;padding:10px 12px;border:1px solid var(--gray-300);border-radius:8px;font-size:14px;font-family:inherit;margin-bottom:16px;outline:none;}
.auth-input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(127,86,217,.12);}
.auth-btn{width:100%;padding:11px;background:var(--gray-900);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;}
.auth-btn:hover{background:var(--gray-800);}
.auth-error{background:#FEF3F2;border:1px solid #FECDCA;color:#B42318;padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:16px;}
.flash-ok{background:#ECFDF3;border:1px solid #A6F4C5;color:#027A48;padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:16px;word-break:break-word;}
.share-file-icon{width:64px;height:64px;border-radius:14px;background:var(--gray-100);display:flex;align-items:center;justify-content:center;color:var(--gray-600);margin:0 auto 16px;}
.share-expiry{font-size:12px;color:var(--gray-400);margin-top:14px;}
.share-list{display:flex;flex-direction:column;gap:2px;margin-top:10px;}
.share-item{display:flex;align-items:center;gap:12px;padding:11px 14px;border:1px solid var(--gray-200);border-radius:10px;text-decoration:none;color:var(--gray-800);transition:background .12s,border-color .12s;}
.share-item:hover{background:var(--gray-50);border-color:var(--gray-300);}
.share-item-ico{width:36px;height:36px;border:1px solid var(--gray-200);border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:#fff;}
.share-item-name{flex:1;min-width:0;font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.share-item-meta{font-size:12px;color:var(--gray-500);flex-shrink:0;}

/* Page chrome (admin / sub pages) */
.page-sub{font-size:14px;color:var(--gray-500);margin:-16px 0 24px;}
.page-body{padding:0 32px 32px;max-width:1000px;}
.explorer-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.panel{border:1px solid var(--gray-200);border-radius:12px;background:#fff;margin-bottom:20px;overflow:hidden;}
.panel-head{padding:18px 20px 0;}
.panel-title{font-size:15px;font-weight:600;color:var(--gray-900);}
.panel-sub{font-size:13px;color:var(--gray-500);margin-top:2px;}
.panel .file-list-table{margin:0;}
.panel .file-list-table thead th{background:var(--gray-50);}

/* Admin */
.admin-create{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:16px 20px 20px;}
.field{padding:10px 12px;border:1px solid var(--gray-300);border-radius:8px;font-size:14px;font-family:inherit;color:var(--gray-900);outline:none;background:#fff;flex:1;min-width:170px;}
.field:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(127,86,217,.12);}
.field-narrow{flex:0 0 130px;min-width:120px;}
.inline-form{display:inline;}
.link-btn{background:none;border:none;color:var(--gray-600);font-size:13px;font-weight:600;cursor:pointer;padding:6px 8px;font-family:inherit;border-radius:6px;}
.link-btn:hover{background:var(--gray-50);color:var(--gray-800);}
.link-danger{color:#B42318;}
.link-danger:hover{color:#912018;}
.ta-right{text-align:right;}
.nowrap{white-space:nowrap;}
.muted-cell{font-size:13px;color:var(--gray-500);}
.tag-you{font-size:11px;font-weight:600;color:var(--gray-500);background:var(--gray-100);padding:1px 6px;border-radius:8px;margin-left:6px;}
.badge{font-size:12px;font-weight:600;padding:2px 8px;border-radius:10px;}
.badge-ok{background:#ECFDF3;color:#027A48;}
.badge-off{background:#FEF3F2;color:#B42318;}
.badge-pending{background:#FEF0C7;color:#B54708;}

@media (max-width:900px){.sidebar{display:none;}.create-actions{flex-wrap:wrap;padding:0 20px;}.main-header{padding:20px 20px 0;}.file-explorer{padding:0 20px 20px;}.search-input-wrap{width:100%;}}