:root{--bg-primary: #0a0a0f;--bg-secondary: #13131a;--bg-card: rgba(25, 25, 35, .6);--accent-purple: #a855f7;--accent-rose: #fb7185;--accent-gold: #fbbf24;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #64748b;--border-color: rgba(168, 85, 247, .2);--success: #10b981;--error: #ef4444;--warning: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,var(--bg-primary) 0%,#1a0a2e 100%);color:var(--text-primary);min-height:100vh;line-height:1.6}#root{min-height:100vh;display:flex;flex-direction:column}.glass-card{background:var(--bg-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border-color);border-radius:16px;padding:2rem;box-shadow:0 8px 32px #0000004d;transition:all .3s ease}.glass-card:hover{border-color:#a855f766;box-shadow:0 12px 48px #a855f733}.container{max-width:1200px;margin:0 auto;padding:2rem;width:100%}.header{text-align:center;margin-bottom:3rem;padding:2rem 0}.header h1{font-size:3rem;font-weight:700;background:linear-gradient(135deg,var(--accent-purple),var(--accent-rose),var(--accent-gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem;animation:gradient-shift 3s ease infinite}@keyframes gradient-shift{0%,to{filter:hue-rotate(0deg)}50%{filter:hue-rotate(20deg)}}.header p{color:var(--text-secondary);font-size:1.1rem}.auth-form{max-width:400px;margin:0 auto}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;color:var(--text-secondary);font-weight:500}.form-group input{width:100%;padding:.875rem 1rem;background:#ffffff0d;border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-size:1rem;transition:all .3s ease}.form-group input:focus{outline:none;border-color:var(--accent-purple);background:#ffffff14;box-shadow:0 0 0 3px #a855f71a}.btn{padding:.875rem 1.75rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:.5rem;text-decoration:none}.btn-primary{background:linear-gradient(135deg,var(--accent-purple),var(--accent-rose));color:#fff;box-shadow:0 4px 12px #a855f74d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #a855f766}.btn-secondary{background:#ffffff1a;color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:#ffffff26;border-color:var(--accent-purple)}.btn-danger{background:#ef444433;color:var(--error);border:1px solid rgba(239,68,68,.3)}.btn-danger:hover{background:#ef44444d;border-color:var(--error)}.btn-success{background:#10b98133;color:var(--success);border:1px solid rgba(16,185,129,.3)}.btn-success:hover{background:#10b9814d;border-color:var(--success)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn-full{width:100%;justify-content:center}.upload-zone{border:2px dashed var(--border-color);border-radius:12px;padding:3rem 2rem;text-align:center;cursor:pointer;transition:all .3s ease;background:#a855f705}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent-purple);background:#a855f714;transform:scale(1.02)}.upload-zone-icon{font-size:3rem;margin-bottom:1rem;opacity:.6}.upload-zone p{color:var(--text-secondary);margin-bottom:.5rem}.upload-zone small{color:var(--text-muted);font-size:.875rem}.current-file{margin-bottom:2rem}.file-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-top:1rem}.info-item{background:#ffffff08;padding:1rem;border-radius:8px;border:1px solid rgba(255,255,255,.05)}.info-item label{display:block;color:var(--text-muted);font-size:.875rem;margin-bottom:.25rem}.info-item .value{color:var(--text-primary);font-weight:600;word-break:break-all}.history-section{margin-top:3rem}.history-section h2{font-size:1.75rem;margin-bottom:1.5rem;color:var(--text-primary)}.version-list{display:flex;flex-direction:column;gap:1rem}.version-item{background:#ffffff08;border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:1.5rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;transition:all .3s ease}.version-item:hover{background:#ffffff0d;border-color:var(--border-color)}.version-item.current{border-color:var(--accent-purple);background:#a855f714}.version-info{flex:1}.version-info h3{font-size:1rem;margin-bottom:.5rem;color:var(--text-primary);display:flex;align-items:center;gap:.5rem}.current-badge{background:var(--accent-purple);color:#fff;padding:.25rem .75rem;border-radius:12px;font-size:.75rem;font-weight:600}.version-meta{display:flex;gap:1.5rem;color:var(--text-muted);font-size:.875rem}.version-actions{display:flex;gap:.5rem;flex-wrap:wrap}.btn-small{padding:.5rem 1rem;font-size:.875rem}.alert{padding:1rem 1.25rem;border-radius:8px;margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem;animation:slideIn .3s ease}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.alert-success{background:#10b98126;border:1px solid rgba(16,185,129,.3);color:var(--success)}.alert-error{background:#ef444426;border:1px solid rgba(239,68,68,.3);color:var(--error)}.alert-info{background:#3b82f626;border:1px solid rgba(59,130,246,.3);color:#3b82f6}.spinner{border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent-purple);border-radius:50%;width:24px;height:24px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.header h1{font-size:2rem}.container{padding:1rem}.version-item{flex-direction:column;align-items:flex-start}.version-actions{width:100%}.btn-small{flex:1}.file-info{grid-template-columns:1fr}}.logout-btn{position:fixed;top:1rem;right:1rem;z-index:100}