:root{--color-primary-bg: #030619;--color-secondary-bg: #0a0d1a;--color-tertiary-bg: #0f1225;--color-text-primary: #ffffff;--color-text-secondary: rgba(255, 255, 255, .7);--color-text-muted: rgba(255, 255, 255, .5);--color-text-accent: #cccccc;--color-accent: #A855F7;--color-accent-hover: #9333EA;--color-accent-glow: rgba(168, 85, 247, .5);--color-accent-subtle: rgba(168, 85, 247, .15);--color-success: #22c55e;--color-error: #ef4444;--color-warning: #f59e0b;--color-card-bg: rgba(255, 255, 255, .03);--color-card-bg-hover: rgba(255, 255, 255, .05);--color-card-border: rgba(255, 255, 255, .08);--color-card-border-hover: rgba(255, 255, 255, .12);--color-input-bg: rgba(255, 255, 255, .05);--color-input-border: rgba(255, 255, 255, .1);--color-input-focus: rgba(168, 85, 247, .5);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 8px 24px rgba(0, 0, 0, .4);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px rgba(168, 85, 247, .3);--font-primary: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-heading: "Instrument Serif", Georgia, serif;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .4s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-primary);background:var(--color-primary-bg);color:var(--color-text-primary);min-height:100vh;line-height:1.5}#app{min-height:100vh}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}input,textarea{font-family:inherit;border:none;outline:none;background:none}img,video{max-width:100%;height:auto;display:block}svg{width:1em;height:1em;flex:0 0 auto}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-lg);background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(168,85,247,.15),transparent),var(--color-primary-bg)}.login-card{width:100%;max-width:400px;background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-xl);padding:var(--space-2xl);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-lg)}.login-logo{display:flex;align-items:center;justify-content:center;gap:var(--space-md);margin-bottom:var(--space-xl)}.login-logo svg{width:48px;height:48px}.login-logo-text{font-family:var(--font-heading);font-size:1.75rem;font-weight:400;letter-spacing:-.02em}.login-title{font-size:1.125rem;font-weight:500;text-align:center;margin-bottom:var(--space-lg);color:var(--color-text-secondary)}.login-form{display:flex;flex-direction:column;gap:var(--space-md)}.form-group{display:flex;flex-direction:column;gap:var(--space-xs)}.form-label{font-size:.875rem;font-weight:500;color:var(--color-text-secondary)}.form-input{width:100%;padding:14px 16px;background:var(--color-input-bg);border:1px solid var(--color-input-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-size:1rem;transition:var(--transition-fast)}.form-input::placeholder{color:var(--color-text-muted)}.form-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-subtle)}.login-btn{width:100%;padding:14px 24px;background:var(--color-accent);color:#fff;font-size:1rem;font-weight:600;border-radius:var(--radius-md);margin-top:var(--space-sm);transition:var(--transition-fast)}.login-btn:hover{background:var(--color-accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-glow)}.login-btn:active{transform:translateY(0)}.login-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.login-error{padding:var(--space-md);background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-md);color:var(--color-error);font-size:.875rem;text-align:center}.dashboard{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{background:var(--color-secondary-bg);border-right:1px solid var(--color-card-border);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-header{padding:var(--space-lg);border-bottom:1px solid var(--color-card-border)}.sidebar-logo{display:flex;align-items:center;gap:var(--space-sm)}.sidebar-logo svg{width:32px;height:32px}.sidebar-logo-text{font-family:var(--font-heading);font-size:1.25rem;letter-spacing:-.02em}.sidebar-nav{flex:1;padding:var(--space-md)}.sidebar-section-title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted);padding:var(--space-md) var(--space-sm);margin-top:var(--space-md)}.sidebar-section-title:first-child{margin-top:0}.folder-tree{display:flex;flex-direction:column;gap:2px}.folder-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);color:var(--color-text-secondary);font-size:.9rem;transition:var(--transition-fast);cursor:pointer}.folder-item:hover{background:var(--color-card-bg-hover);color:var(--color-text-primary)}.folder-item.active{background:var(--color-accent-subtle);color:var(--color-accent)}.folder-item svg{width:18px;height:18px;opacity:.7}.folder-item.active svg{opacity:1}.folder-count{margin-left:auto;font-size:.75rem;color:var(--color-text-muted);background:var(--color-card-bg);padding:2px 8px;border-radius:99px}.folder-item.active .folder-count{background:#a855f733;color:var(--color-accent)}.sidebar-footer{padding:var(--space-md);border-top:1px solid var(--color-card-border)}.logout-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:.9rem;transition:var(--transition-fast)}.logout-btn:hover{background:#ef44441a;color:var(--color-error)}.logout-btn svg{width:18px;height:18px}.main-content{display:flex;flex-direction:column;min-height:100vh}.content-header{padding:var(--space-lg) var(--space-xl);border-bottom:1px solid var(--color-card-border);background:var(--color-secondary-bg);position:sticky;top:0;z-index:100}.header-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-md)}.header-title{font-family:var(--font-heading);font-size:1.75rem;font-weight:400}.header-actions{display:flex;gap:var(--space-sm)}.btn{display:inline-flex;align-items:center;gap:var(--space-sm);padding:10px 20px;border-radius:var(--radius-md);font-size:.9rem;font-weight:500;transition:var(--transition-fast)}.btn-primary{background:var(--color-accent);color:#fff}.btn-primary:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-glow)}.btn-secondary{background:var(--color-card-bg);border:1px solid var(--color-card-border);color:var(--color-text-secondary)}.btn-secondary:hover{background:var(--color-card-bg-hover);border-color:var(--color-card-border-hover);color:var(--color-text-primary)}.btn svg{width:18px;height:18px}.search-bar{display:flex;align-items:center;gap:var(--space-sm);padding:12px 16px;background:var(--color-input-bg);border:1px solid var(--color-input-border);border-radius:var(--radius-md);transition:var(--transition-fast)}.search-bar:focus-within{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-subtle)}.search-bar svg{width:20px;height:20px;color:var(--color-text-muted)}.search-input{flex:1;font-size:.95rem;color:var(--color-text-primary)}.search-input::placeholder{color:var(--color-text-muted)}.upload-zone-wrapper{padding:var(--space-xl);padding-bottom:0}.upload-zone{border:2px dashed var(--color-card-border);border-radius:var(--radius-lg);padding:var(--space-2xl);text-align:center;transition:var(--transition-base);cursor:pointer;background:var(--color-card-bg)}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--color-accent);background:var(--color-accent-subtle)}.upload-zone.drag-over{transform:scale(1.01)}.upload-icon{width:42px;height:42px;display:block;margin:0 auto var(--space-md);color:var(--color-text-muted);transition:var(--transition-base)}.upload-icon svg{width:100%;height:100%;display:block}.upload-zone:hover .upload-icon,.upload-zone.drag-over .upload-icon{color:var(--color-accent);transform:translateY(-4px)}.upload-text{font-size:1rem;color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.upload-text strong{color:var(--color-text-primary)}.upload-hint{font-size:.875rem;color:var(--color-text-muted)}.upload-input{display:none}.files-section{flex:1;padding:var(--space-xl)}.files-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-lg)}.files-count{font-size:.9rem;color:var(--color-text-muted)}.view-toggle{display:flex;gap:4px;background:var(--color-card-bg);border-radius:var(--radius-md);padding:4px}.view-btn{padding:8px;border-radius:var(--radius-sm);color:var(--color-text-muted);transition:var(--transition-fast)}.view-btn:hover{color:var(--color-text-primary)}.view-btn.active{background:var(--color-accent-subtle);color:var(--color-accent)}.view-btn svg{width:18px;height:18px}.file-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:var(--space-lg)}.file-card{background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition-base);position:relative}.file-card:hover{border-color:var(--color-card-border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}.file-preview{aspect-ratio:4/3;background:var(--color-tertiary-bg);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.file-preview img,.file-preview video{width:100%;height:100%;object-fit:cover}.file-preview-icon{width:48px;height:48px;color:var(--color-text-muted)}.file-preview-icon svg{width:100%;height:100%;display:block}.file-info{padding:var(--space-md)}.file-name{font-size:.9rem;font-weight:500;color:var(--color-text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:var(--space-xs)}.file-meta{display:flex;align-items:center;gap:var(--space-sm);font-size:.8rem;color:var(--color-text-muted)}.file-meta span{display:flex;align-items:center;gap:4px}.file-actions{display:flex;gap:var(--space-xs);padding:0 var(--space-md) var(--space-md)}.file-action-btn{flex:1;display:flex;align-items:center;justify-content:center;gap:6px;padding:8px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:500;transition:var(--transition-fast);background:var(--color-input-bg);color:var(--color-text-secondary)}.file-action-btn:hover{background:var(--color-card-bg-hover);color:var(--color-text-primary)}.file-action-btn.copy-btn:hover{background:var(--color-accent-subtle);color:var(--color-accent)}.file-action-btn.delete-btn:hover{background:#ef44441a;color:var(--color-error)}.file-action-btn.open-btn:hover{background:#22c55e1a;color:var(--color-success)}.file-action-btn svg{width:14px;height:14px}.toast-container{position:fixed;bottom:var(--space-lg);right:var(--space-lg);display:flex;flex-direction:column;gap:var(--space-sm);z-index:1000}.toast{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-lg);background:var(--color-secondary-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);animation:slideIn .3s ease}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.toast.success{border-color:#22c55e4d}.toast.error{border-color:#ef44444d}.toast-icon{width:20px;height:20px}.toast-icon svg{width:100%;height:100%;display:block}.toast.success .toast-icon{color:var(--color-success)}.toast.error .toast-icon{color:var(--color-error)}.toast-message{font-size:.9rem;color:var(--color-text-primary)}.upload-progress-container{position:fixed;bottom:var(--space-lg);left:var(--space-lg);width:320px;background:var(--color-secondary-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;z-index:1000}.upload-progress-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-md);border-bottom:1px solid var(--color-card-border)}.upload-progress-title{font-size:.9rem;font-weight:500}.upload-progress-list{max-height:200px;overflow-y:auto}.upload-progress-item{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);border-bottom:1px solid var(--color-card-border)}.upload-progress-item:last-child{border-bottom:none}.upload-progress-icon{width:32px;height:32px;border-radius:var(--radius-sm);background:var(--color-card-bg);display:flex;align-items:center;justify-content:center}.upload-progress-icon svg{width:16px;height:16px;color:var(--color-text-muted)}.upload-progress-info{flex:1;min-width:0}.upload-progress-name{font-size:.85rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.upload-progress-bar{height:4px;background:var(--color-card-bg);border-radius:2px;margin-top:6px;overflow:hidden}.upload-progress-fill{height:100%;background:var(--color-accent);border-radius:2px;transition:width .3s ease}.upload-progress-status{font-size:.75rem;color:var(--color-text-muted)}.upload-progress-status.complete{color:var(--color-success)}.upload-progress-status.error{color:var(--color-error)}.empty-state{text-align:center;padding:var(--space-2xl);color:var(--color-text-muted)}.empty-state-icon{width:64px;height:64px;display:block;margin:0 auto var(--space-md);opacity:.5}.empty-state-icon svg{width:100%;height:100%;display:block}.empty-state-title{font-size:1.125rem;font-weight:500;color:var(--color-text-secondary);margin-bottom:var(--space-xs)}.empty-state-text{font-size:.9rem}.loading{display:flex;align-items:center;justify-content:center;padding:var(--space-2xl)}.spinner{width:32px;height:32px;border:3px solid var(--color-card-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1001;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--color-secondary-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-xl);width:90%;max-width:500px;box-shadow:var(--shadow-lg);animation:modalIn .3s ease}@keyframes modalIn{0%{transform:scale(.95) translateY(10px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-lg);border-bottom:1px solid var(--color-card-border)}.modal-title{font-size:1.125rem;font-weight:600}.modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:var(--color-text-muted);transition:var(--transition-fast)}.modal-close:hover{background:var(--color-card-bg);color:var(--color-text-primary)}.modal-close svg{width:20px;height:20px}.modal-body{padding:var(--space-lg)}.modal-footer{display:flex;justify-content:flex-end;gap:var(--space-sm);padding:var(--space-lg);border-top:1px solid var(--color-card-border)}.btn-danger{background:var(--color-error);color:#fff}.btn-danger:hover{background:#dc2626}@media (max-width: 768px){.dashboard{grid-template-columns:1fr}.sidebar{display:none}.file-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:var(--space-md)}.upload-zone{padding:var(--space-lg)}.content-header,.files-section,.upload-zone-wrapper{padding:var(--space-md)}}