@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap";:root{--font-sans:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif;--bg-main:#f4f6f9;--bg-card:#fff;--bg-sidebar:#fff;--border-color:#e2e8f0;--border-active:#93c5fd;--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#64748b;--accent:#dc2626;--accent-glow:#dc26260f;--accent-hover:#b91c1c;--success:#10b981;--success-glow:#10b98114;--danger:#ef4444;--danger-glow:#ef444414;--warning:#ff9500;--warning-glow:#ff950014;--shadow-sm:0 1px 3px #0000000d, 0 1px 2px #00000008;--shadow-md:0 4px 12px -2px #0000000d, 0 2px 6px -1px #00000008;--shadow-lg:0 15px 25px -5px #00000014, 0 8px 10px -6px #00000008;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-full:9999px;--transition-fast:.15s ease;--transition-normal:.25s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;width:100vw;height:100vh;overflow:hidden}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{border-radius:var(--radius-full);background:#0000001a}::-webkit-scrollbar-thumb:hover{background:#0003}.auth-wrapper{background:radial-gradient(circle at 100% 0,#dc26260d,#0000 45%),radial-gradient(circle at 0 100%,#10b98108,#0000 45%),#f8fafc;justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);width:100%;max-width:440px;box-shadow:var(--shadow-lg);animation:fadeIn var(--transition-normal);text-align:center;padding:40px 30px}.auth-title{color:var(--text-primary);margin-bottom:8px;font-size:24px;font-weight:800}.auth-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:14px}.form-group{text-align:left;margin-bottom:20px}.form-label{color:var(--text-secondary);margin-bottom:8px;font-size:13px;font-weight:600;display:block}.input-wrapper{align-items:center;display:flex;position:relative}.input-icon{color:var(--text-muted);pointer-events:none;position:absolute;left:14px}.form-input{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;height:48px;color:var(--text-primary);font-family:var(--font-sans);transition:var(--transition-fast);background:#f8fafc;padding:0 16px 0 44px;font-size:14px}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-glow);background:#fff;outline:none}.btn{background:var(--accent);color:#fff;border-radius:var(--radius-md);width:100%;height:48px;font-family:var(--font-sans);cursor:pointer;transition:var(--transition-fast);border:none;justify-content:center;align-items:center;gap:8px;font-size:14px;font-weight:600;display:inline-flex}.btn:hover{background:var(--accent-hover);box-shadow:0 4px 12px #dc262633}.btn:disabled{opacity:.5;cursor:not-allowed}.alert-error{background:var(--danger-glow);color:#c53030;border-radius:var(--radius-sm);text-align:left;border:1px solid #ef444433;align-items:center;gap:8px;margin-bottom:20px;padding:12px;font-size:13px;display:flex}.app-container{background-color:var(--bg-main);width:100vw;height:100vh;display:flex;overflow:hidden}.sidebar{background:var(--bg-sidebar);border-right:1px solid var(--border-color);flex-direction:column;flex-shrink:0;width:280px;display:flex;box-shadow:2px 0 8px #00000005}.sidebar-header{border-bottom:1px solid var(--border-color);align-items:center;gap:12px;padding:24px;display:flex}.sidebar-logo{align-items:center;display:flex}.sidebar-title{letter-spacing:-.5px;color:var(--text-primary);font-size:18px;font-weight:800}.shares-section{flex:1;padding:20px 12px;overflow-y:auto}.section-title{text-transform:uppercase;color:var(--text-muted);letter-spacing:1px;margin-bottom:12px;padding-left:12px;font-size:11px;font-weight:700}.share-item{border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:var(--transition-fast);border:1px solid #0000;align-items:center;gap:12px;margin-bottom:4px;padding:12px 16px;display:flex}.share-item:hover{color:var(--text-primary);background:#f1f5f9}.share-item.active{background:var(--accent-glow);color:var(--accent);border-color:#dc26261f;font-weight:600}.sidebar-footer{border-top:1px solid var(--border-color);background:#f8fafc;padding:20px}.user-profile{align-items:center;gap:12px;margin-bottom:16px;display:flex}.user-avatar{border-radius:var(--radius-full);background:linear-gradient(135deg, var(--accent) 0%, #f87171 100%);color:#fff;justify-content:center;align-items:center;width:40px;height:40px;font-size:16px;font-weight:700;display:flex;box-shadow:0 4px 8px #dc262633}.user-info{flex:1;min-width:0}.user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.user-role{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.logout-btn{color:#e53e3e;border-radius:var(--radius-sm);cursor:pointer;width:100%;height:38px;transition:var(--transition-fast);background:#ef44440d;border:1px solid #ef444426;justify-content:center;align-items:center;gap:8px;font-size:13px;font-weight:600;display:inline-flex}.logout-btn:hover{background:#ef44441a;border-color:#ef444440}.workspace{background-color:var(--bg-main);flex-direction:column;flex:1;min-width:0;height:100vh;display:flex}.topbar{border-bottom:1px solid var(--border-color);background:#fff;justify-content:space-between;align-items:center;gap:24px;height:72px;padding:0 24px;display:flex}.breadcrumb-container{white-space:nowrap;align-items:center;gap:8px;padding-right:12px;font-size:14px;display:flex;overflow-x:auto}.breadcrumb-item{color:var(--text-secondary);cursor:pointer;transition:var(--transition-fast);align-items:center;display:flex}.breadcrumb-item:hover{color:var(--accent)}.breadcrumb-item.active{color:var(--text-primary);cursor:default;font-weight:600}.breadcrumb-separator{color:var(--text-muted)}.search-box{width:320px;position:relative}.search-icon{color:var(--text-muted);pointer-events:none;position:absolute;top:50%;left:14px;transform:translateY(-50%)}.search-input{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;height:40px;color:var(--text-primary);font-family:var(--font-sans);transition:var(--transition-fast);background:#f1f5f9;padding:0 16px 0 40px;font-size:13px}.search-input:focus{border-color:var(--accent);background:#fff;outline:none}.actionbar{border-bottom:1px solid var(--border-color);background:#fff;border-top:1px solid #00000003;justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;display:flex}.action-buttons{align-items:center;gap:12px;display:flex}.btn-action{border:1px solid var(--border-color);border-radius:var(--radius-sm);height:38px;color:var(--text-secondary);font-family:var(--font-sans);cursor:pointer;transition:var(--transition-fast);box-shadow:var(--shadow-sm);background:#fff;align-items:center;gap:8px;padding:0 16px;font-size:13px;font-weight:500;display:inline-flex}.btn-action:hover{color:var(--text-primary);background:#f8fafc;border-color:#cbd5e1}.btn-action.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-action.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}.view-toggle{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:#f1f5f9;padding:2px;display:flex}.view-btn{width:32px;height:32px;color:var(--text-muted);cursor:pointer;transition:var(--transition-fast);background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;display:flex}.view-btn.active{color:var(--text-primary);box-shadow:var(--shadow-sm);background:#fff}.content-area{flex:1;padding:24px;position:relative;overflow-y:auto}.drag-overlay{border:2px dashed var(--accent);border-radius:var(--radius-md);z-index:10;color:var(--accent);pointer-events:none;background:#fffffff2;flex-direction:column;justify-content:center;align-items:center;gap:16px;margin:12px;animation:.15s fadeIn;display:flex;position:absolute;inset:0}.drag-overlay p{font-size:18px;font-weight:600}.file-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;display:grid}.file-card{border:1px solid var(--border-color);border-radius:var(--radius-md);text-align:center;cursor:pointer;transition:var(--transition-fast);box-shadow:var(--shadow-sm);background:#fff;flex-direction:column;align-items:center;padding:16px;display:flex;position:relative}.file-card:hover{box-shadow:var(--shadow-md);background:#f8fafc;border-color:#cbd5e1;transform:translateY(-2px)}.file-card.selected{background:var(--accent-glow);border-color:var(--accent)}.file-card-icon{width:48px;height:48px;color:var(--text-secondary);justify-content:center;align-items:center;margin-bottom:12px;display:flex}.file-card-icon.folder{color:#ff9500;filter:drop-shadow(0 4px 8px #ff95004d);transition:transform .2s cubic-bezier(.16,1,.3,1),filter .2s}.file-card:hover .file-card-icon.folder{filter:drop-shadow(0 4px 12px #ff950080);transform:scale(1.1)}.file-card-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;width:100%;margin-bottom:4px;font-size:13px;font-weight:500;overflow:hidden}.file-card-meta{color:var(--text-muted);font-size:11px}.file-list{border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);background:#fff;flex-direction:column;display:flex;overflow:hidden}.list-header{border-bottom:1px solid var(--border-color);color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;background:#f8fafc;grid-template-columns:3fr 1fr 1.5fr;padding:12px 16px;font-size:11px;font-weight:700;display:grid}.list-row{cursor:pointer;transition:var(--transition-fast);border-bottom:1px solid #f1f5f9;grid-template-columns:3fr 1fr 1.5fr;align-items:center;padding:12px 16px;font-size:13px;display:grid}.list-row:last-child{border-bottom:none}.list-row:hover{background:#f8fafc}.list-row.selected{background:var(--accent-glow);color:var(--text-primary)}.list-name-col{align-items:center;gap:12px;min-width:0;padding-right:16px;display:flex}.list-name-text{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.list-size-col{color:var(--text-secondary)}.list-date-col{color:var(--text-muted)}.list-folder-icon{color:#ff9500;filter:drop-shadow(0 2px 4px #ff950040);transition:transform .2s}.list-row:hover .list-folder-icon{transform:scale(1.08)}.list-file-icon{color:var(--text-muted)}.details-panel{border-left:1px solid var(--border-color);width:320px;animation:slideInRight var(--transition-normal);background:#fff;flex-direction:column;flex-shrink:0;gap:20px;padding:24px;display:flex;overflow-y:auto;box-shadow:-2px 0 8px #00000005}.details-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding-bottom:16px;display:flex}.details-title{font-size:16px;font-weight:700}.details-close{color:var(--text-muted);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;padding:4px;display:flex}.details-close:hover{color:var(--text-primary);background:#f1f5f9}.details-preview-box{border-radius:var(--radius-md);height:160px;color:var(--text-muted);border:1px solid var(--border-color);background:#f8fafc;flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex}.details-preview-box.folder{color:#ff9500;background:radial-gradient(circle,#ff95000d,#0000 70%),#f8fafc;border-color:#ff950033}.details-name{word-break:break-all;font-size:15px;font-weight:600}.details-info-list{flex-direction:column;gap:12px;font-size:13px;display:flex}.details-info-row{justify-content:space-between;display:flex}.details-info-label{color:var(--text-muted)}.details-info-value{color:var(--text-primary);text-align:right;text-overflow:ellipsis;white-space:nowrap;max-width:60%;font-weight:500;overflow:hidden}.details-actions{flex-direction:column;gap:8px;margin-top:auto;display:flex}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#0f172a4d;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{border:1px solid var(--border-color);border-radius:var(--radius-lg);width:90%;max-width:500px;box-shadow:var(--shadow-lg);background:#fff;padding:24px;animation:.2s cubic-bezier(.16,1,.3,1) fadeIn}.modal-title{margin-bottom:16px;font-size:18px;font-weight:700}.modal-input{border:1px solid var(--border-color);border-radius:var(--radius-sm);width:100%;height:40px;color:var(--text-primary);font-family:var(--font-sans);background:#f8fafc;margin-bottom:20px;padding:0 12px;font-size:14px}.modal-input:focus{border-color:var(--accent);outline:none}.modal-buttons{justify-content:flex-end;gap:12px;display:flex}.btn-secondary{border:1px solid var(--border-color);height:38px;color:var(--text-secondary);border-radius:var(--radius-sm);cursor:pointer;background:0 0;padding:0 16px;font-weight:500}.btn-secondary:hover{color:var(--text-primary);background:#f1f5f9}.preview-modal-content{border:1px solid var(--border-color);border-radius:var(--radius-lg);width:95%;max-width:960px;height:85vh;box-shadow:var(--shadow-lg);background:#fff;flex-direction:column;animation:.2s cubic-bezier(.16,1,.3,1) fadeIn;display:flex;overflow:hidden}.preview-modal-header{border-bottom:1px solid var(--border-color);background:#fff;justify-content:space-between;align-items:center;height:60px;padding:0 20px;display:flex}.preview-modal-title{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:10px;max-width:70%;font-size:15px;font-weight:600;display:flex;overflow:hidden}.preview-modal-body{background:#f1f5f9;flex:1;justify-content:center;align-items:center;display:flex;position:relative;overflow:auto}.preview-img{object-fit:contain;max-width:100%;max-height:100%}.preview-video,.preview-audio{outline:none;width:100%;max-width:800px;max-height:100%}.preview-pdf{border:none;width:100%;height:100%}.preview-text{color:#1e293b;white-space:pre-wrap;text-align:left;background:#f8fafc;width:100%;height:100%;padding:24px;font-family:Consolas,Courier New,Courier,monospace;font-size:13px;line-height:1.6;overflow-y:auto}.preview-fallback{text-align:center;color:var(--text-secondary);flex-direction:column;align-items:center;gap:16px;display:flex}.upload-manager{border:1px solid var(--border-color);border-radius:var(--radius-md);width:360px;box-shadow:var(--shadow-lg);z-index:80;background:#fff;flex-direction:column;max-height:320px;display:flex;position:fixed;bottom:24px;right:24px;overflow:hidden}.upload-manager-header{border-bottom:1px solid var(--border-color);background:#f8fafc;justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.upload-manager-title{align-items:center;gap:8px;font-size:13px;font-weight:700;display:flex}.upload-manager-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;display:flex}.upload-manager-list{flex-direction:column;gap:12px;padding:12px 16px;display:flex;overflow-y:auto}.upload-item{flex-direction:column;gap:6px;display:flex}.upload-item-header{justify-content:space-between;font-size:12px;display:flex}.upload-item-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;max-width:70%;font-weight:500;overflow:hidden}.upload-item-percent{color:var(--accent);font-weight:600}.upload-progress-bg{border-radius:var(--radius-full);background:#f1f5f9;height:4px;overflow:hidden}.upload-progress-fg{background:var(--accent);border-radius:var(--radius-full);height:100%;transition:width .1s}.upload-progress-fg.success{background:var(--success)}.upload-progress-fg.error{background:var(--danger)}.spinner{color:var(--accent);animation:1s linear infinite spin}.loading-wrapper,.empty-workspace{height:100%;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;gap:16px;display:flex}.empty-title{color:var(--text-primary);font-size:18px;font-weight:600}.empty-desc{color:var(--text-muted);font-size:14px}