:root{--bg-color: #0b0c10;--card-bg: rgba(255, 255, 255, .03);--accent-color: #1a4f9c;--accent-secondary: #2c6cb4;--text-primary: #f8fafc;--text-secondary: #94a3b8;--glass-border: rgba(255, 255, 255, .06);--success-color: #10b981;--error-color: #ef4444;--shadow-color: rgba(0, 0, 0, .4)}.light-mode{--bg-color: #f8fafc;--card-bg: rgba(255, 255, 255, .7);--accent-color: #1a4f9c;--accent-secondary: #0e2d5c;--text-primary: #0f172a;--text-secondary: #475569;--glass-border: rgba(26, 79, 156, .08);--success-color: #059669;--error-color: #dc2626;--shadow-color: rgba(15, 23, 42, .08)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;background-color:var(--bg-color);color:var(--text-primary);line-height:1.5;min-height:100vh;display:flex;justify-content:center;align-items:center;overflow-x:hidden;position:relative;transition:background-color .5s ease}.bg-animation{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;overflow:hidden;filter:blur(100px);opacity:.6;pointer-events:none}.blob{position:absolute;width:50vw;height:50vw;border-radius:50%;background:var(--accent-color);animation:move 25s infinite alternate ease-in-out}.blob-1{top:-10%;left:-10%;background:var(--accent-color);opacity:.4}.blob-2{bottom:-10%;right:-10%;background:var(--accent-secondary);animation-duration:30s;animation-delay:-5s;opacity:.3}.blob-3{top:50%;left:50%;transform:translate(-50%,-50%);width:30vw;height:30vw;background:#4f46e5;animation-duration:35s;animation-delay:-10s;opacity:.2}@keyframes move{0%{transform:translate(0) scale(1)}50%{transform:translate(10%,15%) scale(1.1)}to{transform:translate(-5%,-10%) scale(.9)}}.light-mode .bg-animation{opacity:.8;filter:blur(140px)}.light-mode .blob-1{background:#dbeafe;opacity:.6}.light-mode .blob-2{background:#e0e7ff;opacity:.5}.light-mode .blob-3{background:#f1f5f9;opacity:.4}h1,h2,h3{font-weight:700;letter-spacing:-.025em}a{text-decoration:none;color:inherit}ul{list-style:none}button,input,select{font-family:inherit;font-size:1rem}.container{width:100%;max-width:900px;padding:2rem}.dashboard-card{background:var(--card-bg);backdrop-filter:blur(28px);-webkit-backdrop-filter:blur(28px);border:1px solid var(--glass-border);border-radius:32px;padding:3rem;box-shadow:0 25px 50px -12px var(--shadow-color),0 0 0 1px #ffffff0d;animation:slideUp .8s cubic-bezier(.16,1,.3,1);position:relative;overflow:hidden}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}header{margin-bottom:2.5rem;text-align:center}h1{font-size:2.25rem;font-weight:800;background:linear-gradient(135deg,var(--text-primary) 0%,var(--accent-color) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:.5rem;letter-spacing:-1px}.logo-container{width:140px;height:auto;margin:0 auto 1.5rem;display:block;filter:drop-shadow(0 4px 10px rgba(0,0,0,.2))}.light-mode .logo-container{filter:none}.theme-toggle{position:absolute;top:1.5rem;right:1.5rem;background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-primary);padding:.5rem 1rem;border-radius:50px;font-size:.75rem;font-weight:600;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:.5rem;z-index:10}.theme-toggle:hover{background:#ffffff1a;transform:scale(1.05)}.light-mode .theme-toggle{background:#0000000d}.subtitle{color:var(--text-secondary);font-size:.875rem}.form-group{margin-bottom:1.5rem}label{display:block;font-size:.75rem;font-weight:600;text-transform:uppercase;color:var(--text-secondary);margin-bottom:.75rem;letter-spacing:.05em}input,select{width:100%;background:var(--card-bg);border:1px solid var(--glass-border);border-radius:12px;padding:.75rem 1rem;color:var(--text-primary);transition:all .3s ease;cursor:pointer}select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231a4f9c' d='M6 9L1 4h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}select option{background:var(--bg-color);color:var(--text-primary)}input:focus,select:focus{outline:none;border-color:var(--accent-color);background:#ffffff0f;box-shadow:0 0 0 4px #1a4f9c26}.apartment-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.75rem;max-height:400px;overflow-y:auto;padding:.5rem;margin:-.5rem}.apartment-grid::-webkit-scrollbar{width:8px}.apartment-grid::-webkit-scrollbar-track{background:#ffffff0d;border-radius:10px}.apartment-grid::-webkit-scrollbar-thumb{background:var(--accent-color);border-radius:10px}.apartment-card{background:#ffffff08;border:1px solid var(--glass-border);border-radius:12px;padding:.75rem;cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;gap:.5rem;text-align:left;position:relative;overflow:hidden}.apartment-card:hover{background:#ffffff14;border-color:#1a4f9c66;transform:translateY(-2px)}.apartment-card.active{background:linear-gradient(135deg,#1a4f9c26,#2c6cb40d);border-color:var(--accent-color);box-shadow:0 8px 20px #0000004d,0 0 0 1px var(--accent-color)}.apartment-card.active:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:var(--accent-color)}.apt-ref{font-size:.75rem;font-weight:700;color:var(--accent-color);letter-spacing:.05em}.apt-address{font-size:.75rem;color:var(--text-secondary);line-height:1.4;display:-webkit-box;line-clamp:3;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.apartment-card.active .apt-address{color:var(--text-primary);font-weight:500}.btn-primary{width:100%;background:var(--accent-color);color:#fff;border:none;border-radius:12px;padding:1rem;font-weight:700;font-size:1rem;text-transform:uppercase;letter-spacing:.05em;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1);margin-top:1rem;position:relative;overflow:hidden;box-shadow:0 4px 15px #1a4f9c4d}.btn-primary:hover{background:var(--accent-secondary);transform:translateY(-2px);box-shadow:0 8px 25px #1a4f9c66}.btn-primary:active{transform:translateY(0)}.btn-primary.loading{color:transparent;pointer-events:none}.btn-primary.loading:after{content:"";position:absolute;width:20px;height:20px;top:calc(50% - 10px);left:calc(50% - 10px);border:2px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.status-banner{margin-top:1.5rem;padding:1rem;border-radius:12px;font-size:.875rem;text-align:center;animation:fadeIn .4s ease}.status-banner.success{background:#10b9811a;color:#34d399;border:1px solid rgba(16,185,129,.2)}.status-banner.error{background:#ef44441a;color:#f87171;border:1px solid rgba(239,68,68,.2)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media(max-width:768px){.apartment-grid{grid-template-columns:1fr}.container{padding:1rem}.dashboard-card{padding:1.5rem}}.tab-nav{display:flex;gap:.5rem;background:#ffffff0a;border:1px solid var(--glass-border);border-radius:14px;padding:.35rem;margin-bottom:2rem}.tab-btn{flex:1;padding:.65rem 1rem;border-radius:10px;border:none;background:transparent;color:var(--text-secondary);font-size:.875rem;font-weight:600;cursor:pointer;transition:all .25s ease;letter-spacing:.02em}.tab-btn:hover{color:var(--text-primary);background:#ffffff0d}.tab-btn.active{background:var(--accent-color);color:#fff;box-shadow:0 4px 12px #1a4f9c59}.invoices-page{animation:fadeIn .3s ease}.invoices-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.invoices-title{font-size:1.25rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:.5rem;margin:0;background:none;-webkit-text-fill-color:var(--text-primary);letter-spacing:-.3px}.invoices-title-icon{font-size:1.4rem}.invoices-subtitle{font-size:.75rem;color:var(--text-secondary);margin:.3rem 0 0}.invoices-header-right{display:flex;align-items:center;gap:1rem}.invoices-stat{display:flex;flex-direction:column;align-items:flex-end}.stat-number{font-size:1.5rem;font-weight:800;color:var(--accent-color);line-height:1}.stat-label{font-size:.7rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.btn-refresh{background:#ffffff0d;border:1px solid var(--glass-border);color:var(--text-primary);padding:.5rem 1rem;border-radius:10px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap}.btn-refresh:hover:not(:disabled){background:#ffffff1a;transform:translateY(-1px)}.btn-refresh:disabled{opacity:.5;cursor:not-allowed}.tree-container{border:1px solid var(--glass-border);border-radius:12px;overflow:hidden;background:var(--card-bg);box-shadow:inset 0 0 0 1px #ffffff0d}.tree-folder-wrapper{position:relative;border-bottom:1px solid rgba(255,255,255,.03)}.tree-folder-wrapper:last-child{border-bottom:none}.tree-folder{display:flex;align-items:center;gap:.75rem;width:100%;padding:.85rem 1rem;background:transparent;border:none;color:var(--text-primary);font-size:.9rem;font-weight:500;cursor:pointer;text-align:left;transition:all .2s cubic-bezier(.16,1,.3,1)}.tree-folder:hover{background:#1a4f9c14}.tree-folder.open{color:var(--accent-color);background:#1a4f9c0a}.tree-chevron{display:flex;align-items:center;color:var(--text-secondary);flex-shrink:0}.tree-folder.open .tree-chevron{color:var(--accent-color)}.tree-icon{display:flex;align-items:center;flex-shrink:0;opacity:.75}.tree-label{flex:1}.tree-count{font-size:.75rem;font-weight:500;color:var(--text-secondary);background:#ffffff14;padding:.2rem .6rem;border-radius:50px;white-space:nowrap;letter-spacing:.02em}.tree-children{background:#00000026;border-top:1px solid rgba(255,255,255,.02);position:relative;padding-top:.25rem;padding-bottom:.25rem}.tree-file{display:flex;align-items:center;gap:.75rem;padding:.65rem 1rem;font-size:.85rem;color:var(--text-secondary);text-decoration:none;transition:all .2s cubic-bezier(.16,1,.3,1);border-left:2px solid transparent;margin-left:-2px}.tree-file:last-child{border-bottom:none}.tree-file:hover{background:#1a4f9c1f;color:var(--accent-color);border-left-color:var(--accent-color);border-bottom-color:transparent}.file-icon{color:var(--accent-color);opacity:.7}.file-label{flex:1}.tree-badge{font-size:.65rem;font-weight:700;color:#fff;background:var(--accent-color);padding:.15rem .45rem;border-radius:4px;letter-spacing:.05em;opacity:.8}.tree-empty{font-size:.8rem;color:var(--text-secondary);padding:.5rem 0;font-style:italic;margin:0}.invoices-loading{display:flex;flex-direction:column;align-items:center;gap:1rem;padding:3rem;color:var(--text-secondary);font-size:.875rem}.loading-spinner{width:36px;height:36px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent-color);border-radius:50%;animation:spin .8s linear infinite}.invoices-error{display:flex;align-items:flex-start;gap:1rem;background:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:12px;padding:1rem 1.25rem;font-size:.875rem;color:#f87171}.invoices-error strong{display:block;margin-bottom:.25rem}.invoices-error p{margin:0;font-size:.8rem;opacity:.8}.btn-retry{margin-left:auto;padding:.4rem .8rem;background:#ef444426;border:1px solid rgba(239,68,68,.3);color:#f87171;border-radius:8px;font-size:.75rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .2s}.btn-retry:hover{background:#ef444440}.invoices-empty{display:flex;flex-direction:column;align-items:center;gap:.5rem;padding:3rem;text-align:center;color:var(--text-secondary)}.empty-icon{font-size:3rem;margin-bottom:.5rem}.invoices-empty h3{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0}.invoices-empty p{font-size:.8rem;margin:0}