:root,[data-theme=light]{--bg: #f5f6fa;--card: #ffffff;--border: #e1e4e8;--text: #1f2430;--muted: #6b7280;--accent: #3b6fed;--accent-dark: #2c56c4;--danger: #e5484d;--success: #22a35c}[data-theme=dark]{--bg: #14161c;--card: #1d2029;--border: #2b2f3a;--text: #eef0f5;--muted: #9aa1b1;--accent: #5b8cff;--accent-dark: #7ba0ff;--danger: #ff6b6f;--success: #33c17a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;transition:background .2s,color .2s}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:var(--card);border-bottom:1px solid var(--border);flex-wrap:wrap;gap:10px}.brand{font-weight:700;font-size:1.1rem;color:var(--text);text-decoration:none}.topbar nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.topbar nav a{color:var(--accent);text-decoration:none}.who{color:var(--muted);font-size:.9rem}.badge{background:var(--accent);color:#fff;font-size:.7rem;padding:2px 6px;border-radius:10px;margin-left:6px}.theme-toggle{background:none;border:1px solid var(--border);border-radius:8px;padding:6px 10px;font-size:1rem}.theme-toggle:hover{background:var(--bg)}main{flex:1;padding:20px;max-width:1000px;margin:0 auto;width:100%}.centered{text-align:center;color:var(--muted);padding:40px 0}.meta{color:var(--muted);font-size:.85rem}.home{display:flex;flex-wrap:wrap;gap:32px;justify-content:center;align-items:flex-start}.hero{max-width:480px}.hero h1{font-size:2rem;margin-bottom:4px}.tagline{color:var(--muted);line-height:1.5}.how-it-works ol{padding-left:20px;line-height:1.8}.disclaimer{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 16px;margin-top:16px}.disclaimer summary{cursor:pointer;font-weight:600}.disclaimer p,.disclaimer ul{color:var(--muted);font-size:.85rem}.guest-notice{margin-top:16px;padding:12px;border-radius:10px;background:var(--bg);border:1px dashed var(--border)}.guest-notice p{margin:4px 0}.guest-notice code{background:var(--card);padding:2px 6px;border-radius:4px}.auth-card{max-width:380px;width:100%;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:28px}.auth-card h1,.auth-card h2{margin-top:0;font-size:1.3rem}.auth-card form{display:flex;flex-direction:column;gap:12px}.auth-card label{display:flex;flex-direction:column;gap:6px;font-size:.9rem;color:var(--muted)}.checkbox-row{flex-direction:row!important;align-items:center;gap:8px!important}.auth-card input:not([type=checkbox]){padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:var(--bg);color:var(--text)}.password-rules{font-size:.78rem;color:var(--muted);margin:-4px 0 4px}.form-links{text-align:right;font-size:.85rem}.form-links a{color:var(--accent)}.dev-box{background:var(--bg);border:1px dashed var(--border);border-radius:8px;padding:10px;margin:10px 0;word-break:break-all;font-size:.85rem}input,button,select{font-family:inherit}button{cursor:pointer;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:10px 16px;font-size:.95rem}button:hover{background:var(--accent-dark)}button:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:var(--bg);color:var(--text);border:1px solid var(--border);text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn-secondary:hover{background:var(--border)}.btn-danger{background:var(--danger)}.btn-danger:hover{filter:brightness(.9)}.link-btn{background:none;color:var(--accent);padding:0;border:none;font-size:inherit}.link-btn:hover{background:none;text-decoration:underline}.link-btn.small{font-size:.8rem;margin-bottom:-4px;align-self:flex-start}.error{color:var(--danger);font-size:.9rem}.dashboard-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:8px}.breadcrumbs{color:var(--muted)}.storage-line{margin:4px 0 16px}.search-bar{display:flex;gap:6px}.search-bar input{padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text);min-width:200px}.toolbar{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;margin-bottom:20px;display:flex;flex-wrap:wrap;gap:20px}.upload-zone{flex:1;min-width:260px;border:2px dashed transparent;border-radius:10px;padding:6px;transition:border-color .15s,background .15s}.upload-zone.drag-active{border-color:var(--accent);background:var(--bg)}.upload-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.dropzone-hint{color:var(--muted);font-size:.8rem;margin:6px 0 0}.expiry-select{display:flex;align-items:center;gap:6px;font-size:.85rem;color:var(--muted)}.expiry-select select{padding:6px 8px;border:1px solid var(--border);border-radius:6px;background:var(--card);color:var(--text)}.upload-queue{list-style:none;padding:0;margin:10px 0 0;display:flex;flex-direction:column;gap:6px}.upload-queue li{display:flex;align-items:center;gap:8px;font-size:.8rem}.q-name{flex:0 0 120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.q-status{flex:0 0 30px}.new-folder-form{display:flex;align-items:center;gap:8px}.new-folder-form input{padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--text)}.progress-bar{width:160px;height:6px;background:var(--border);border-radius:4px;overflow:hidden}.progress-bar.small{width:80px;height:5px;flex:1}.progress-fill{height:100%;background:var(--accent);transition:width .2s}.progress-fill.error{background:var(--danger)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}.empty{color:var(--muted);grid-column:1 / -1}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;display:flex;flex-direction:column;padding:4px;gap:2px}.card-main{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;background:none;color:var(--text);padding:16px 8px 8px;text-decoration:none;border-radius:8px;text-align:center}.card-main:hover{background:var(--bg)}.card .icon{font-size:2rem}.card .icon.big{font-size:3.5rem}.card .name{font-size:.85rem;word-break:break-word}.card .meta.expiry{font-size:.7rem}.card-actions{display:flex;justify-content:center;gap:4px;padding:4px 0 6px}.card-actions button,.card-actions a{background:none;color:var(--muted);padding:4px 6px;font-size:.9rem;text-decoration:none}.card-actions button:hover,.card-actions a:hover{background:var(--bg);color:var(--text)}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;padding:16px;z-index:50}.modal{background:var(--card);border-radius:12px;padding:24px;max-width:420px;width:100%;border:1px solid var(--border)}.modal-large{max-width:640px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:16px}.share-link-row{display:flex;gap:8px}.share-link-row input{flex:1;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text)}.share-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.share-buttons a,.share-buttons button{font-size:.85rem;padding:8px 12px}.preview-area{max-height:60vh;overflow:auto;text-align:center}.preview-area img{max-width:100%;border-radius:8px}.preview-area iframe{width:100%;height:60vh;border:none}.public-share-card{text-align:center}.public-file-preview{padding:20px 0}.public-file-preview .name{font-weight:600;margin:8px 0 2px}.download-btn{display:inline-block;margin:12px 0;padding:12px 20px;background:var(--accent);color:#fff;border-radius:8px;text-decoration:none;font-weight:600}.toast-stack{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:100;max-width:320px}.toast{padding:12px 16px;border-radius:8px;background:var(--card);border:1px solid var(--border);box-shadow:0 4px 12px #00000026;font-size:.9rem;color:var(--text)}.toast-success{border-left:4px solid var(--success)}.toast-error{border-left:4px solid var(--danger)}.toast-info{border-left:4px solid var(--accent)}.admin section{margin-bottom:24px}.stats-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}.admin-tabs{display:flex;gap:8px;margin-bottom:14px}.admin-tabs button{background:var(--card);color:var(--text);border:1px solid var(--border)}.admin-tabs button.active{background:var(--accent);color:#fff;border-color:var(--accent)}table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:12px;overflow:hidden;font-size:.85rem}th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;background:var(--bg)}tr:last-child td{border-bottom:none}@media(max-width:640px){main{padding:12px}.home{flex-direction:column}.topbar{padding:10px 12px}.grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}table{font-size:.75rem}th,td{padding:8px}.q-name{flex-basis:80px}}