:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent:#3b82f6;--accent-hover:#2563eb;--success:#10b981;--danger:#ef4444;--border-color:#ffffff1a;--glass-bg:#1e293bb3;--glass-border:#ffffff0d;--glass-shadow:0 4px 30px #0000001a;--glass-backdrop:blur(10px)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}.glass-panel{background:var(--glass-bg);border:1px solid var(--glass-border);box-shadow:var(--glass-shadow);-webkit-backdrop-filter:var(--glass-backdrop);backdrop-filter:var(--glass-backdrop);border-radius:16px;padding:24px}.btn{background-color:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 20px;font-weight:600;transition:all .3s}.btn:hover{background-color:var(--accent-hover);transform:translateY(-1px)}.app-container{min-height:100vh;display:flex}.sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--border-color);flex-direction:column;gap:15px;width:250px;padding:20px;display:flex}.main-content{flex:1;padding:40px;overflow-y:auto}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-bottom:30px;display:grid}.stat-card h3{color:var(--text-secondary);margin-bottom:8px;font-size:.9rem}.stat-card .value{color:var(--text-primary);font-size:2rem;font-weight:700}.stat-card .value.positive{color:var(--success)}.stat-card .value.negative{color:var(--danger)}.page-header{justify-content:space-between;align-items:center;margin-bottom:30px;display:flex}.page-header h2{letter-spacing:-.5px;font-size:1.8rem;font-weight:700}.btn-primary{background:linear-gradient(135deg, var(--accent) 0%, #60a5fa 100%);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:10px 24px;font-weight:600;transition:all .2s;box-shadow:0 4px 15px #3b82f64d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px #3b82f666}.table-container{border-radius:12px;padding:0;overflow-x:auto}.modern-table{border-collapse:collapse;text-align:left;width:100%}.modern-table th{color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;border-bottom:1px solid var(--border-color);background-color:#0f172a66;padding:16px 20px;font-size:.85rem;font-weight:500}.modern-table td{color:var(--text-primary);border-bottom:1px solid #ffffff0d;padding:16px 20px}.asiento-row{cursor:pointer;transition:background-color .2s}.asiento-row:hover{background-color:#ffffff05}.asiento-row.expanded{background-color:#3b82f60d}.badge-pill{background:#ffffff1a;border-radius:20px;padding:4px 10px;font-family:monospace;font-size:.8rem;font-weight:600}.status-badge{border-radius:20px;align-items:center;gap:6px;padding:6px 12px;font-size:.8rem;font-weight:600;display:inline-flex}.status-badge.asentado{color:#34d399;background-color:#10b98126;border:1px solid #10b9814d}.status-badge.borrador{color:#fbbf24;background-color:#f59e0b26;border:1px solid #f59e0b4d}.text-right{text-align:right}.text-center{text-align:center}.font-mono{font-family:JetBrains Mono,monospace}.apuntes-row td{border-bottom:none;padding:0}.apuntes-details{border-bottom:1px solid var(--border-color);background:#0f172a99;padding:24px;box-shadow:inset 0 4px 10px #0003}.apuntes-table{border-collapse:collapse;background:#ffffff05;border:1px solid #ffffff0d;border-radius:8px;width:100%;overflow:hidden}.apuntes-table th{color:var(--text-secondary);background:#0003;padding:12px 16px;font-size:.8rem}.apuntes-table td{border-bottom:1px solid #ffffff0d;padding:12px 16px}.cuenta-info{flex-direction:column;display:flex}.cuenta-codigo{color:var(--accent);font-size:.85rem;font-weight:700}.cuenta-nombre{color:var(--text-secondary);font-size:.8rem}.highlight-debe{color:#60a5fa!important}.highlight-haber{color:#f87171!important}.totals-row td{background:#0000004d;border-top:2px solid #ffffff1a}.totals-row .balanced{color:#34d399}.totals-row .unbalanced{color:#f87171}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.slide-down{animation:.3s ease-out forwards slideDown}.dropzone{text-align:center;cursor:pointer;background:#0000001a;border:2px dashed #fff3;border-radius:12px;margin-top:20px;padding:40px;transition:all .3s}.dropzone.active{border-color:var(--accent);background:#3b82f60d}.dropzone-content{flex-direction:column;align-items:center;gap:12px;display:flex}.dropzone-content h3{font-size:1.2rem;font-weight:600}.dropzone-content p{color:var(--text-secondary);font-size:.9rem}.browse-btn{color:var(--accent);margin-top:8px;font-weight:600;text-decoration:underline}.selected-file{background:#ffffff0d;border-radius:8px;align-items:center;margin-top:10px;padding:12px 20px;display:flex}.alert-box{border-radius:8px;align-items:center;gap:12px;margin-top:24px;padding:16px;font-weight:500;display:flex}.alert-box.success{color:#34d399;background:#10b9811a;border:1px solid #10b98133}.alert-box.error{color:#f87171;background:#ef44441a;border:1px solid #ef444433}.spin{animation:1s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}