/* ===================================
           CSS VARIABLES - DARK THEME (DEFAULT)
           =================================== */
           :root {
            --primary-color: #6366f1;
            --primary-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
            --secondary-color: #8b5cf6;
            --dark-bg: #0a0e1a;
            --card-bg: rgba(20, 25, 40, 0.8);
            --glass-bg: rgba(30, 35, 50, 0.7);
            --hover-bg: #334155;
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --accent-color: #ec4899;
            --accent-gradient: linear-gradient(135deg, #ec4899, #fb7185);
            --success-color: #10b981;
            --warning-color: #f59e0b;
            --danger-color: #ef4444;
            --info-color: #3b82f6;
            --glass-border: rgba(255, 255, 255, 0.1);
            --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
            --card-radius: 20px;
            --input-radius: 12px;
            --header-bg: rgba(30, 41, 59, 0.9);
            --table-hover: rgba(255, 255, 255, 0.05);
            --border-color: rgba(255, 255, 255, 0.1);
        }
        
        /* ===================================
           LIGHT THEME VARIABLES
           =================================== */
        [data-theme="light"] {
            --dark-bg: #f8fafc;
            --card-bg: rgba(255, 255, 255, 0.95);
            --glass-bg: rgba(255, 255, 255, 0.9);
            --hover-bg: #e2e8f0;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --glass-border: rgba(0, 0, 0, 0.1);
            --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            --header-bg: rgba(255, 255, 255, 0.95);
            --table-hover: rgba(0, 0, 0, 0.02);
            --border-color: rgba(0, 0, 0, 0.1);
        }
        
        /* ===================================
           GLOBAL STYLES
           =================================== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            background-color: var(--dark-bg);
            color: var(--text-primary);
            font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            transition: all 0.3s ease;
            overflow-x: hidden;
            min-height: 100vh;
            position: relative;
        }
        
        /* ===================================
           ANIMATED BACKGROUND
           =================================== */
        .bg-animation {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }
        
        .bg-bubble {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.02) 100%);
            animation: float 20s infinite ease-in-out;
        }
        
        [data-theme="light"] .bg-bubble {
            background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.04) 100%);
        }
        
        .bg-bubble:nth-child(1) { width: 80vh; height: 80vh; top: -40vh; left: -40vh; animation-delay: 0s; }
        .bg-bubble:nth-child(2) { width: 100vh; height: 100vh; top: 20vh; right: -50vh; animation-delay: 5s; }
        .bg-bubble:nth-child(3) { width: 60vh; height: 60vh; bottom: -30vh; left: 30vw; animation-delay: 10s; }
        .bg-bubble:nth-child(4) { width: 70vh; height: 70vh; bottom: 20vh; right: 20vw; animation-delay: 15s; }
        
        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); }
            50% { transform: translateY(-30px) rotate(5deg); }
            100% { transform: translateY(0) rotate(0deg); }
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 20px;
        }

        /* ===================================
           HEADER SECTION
           =================================== */
        .app-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            padding: 20px 30px;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            box-shadow: var(--box-shadow);
        }

        .app-logo {
            font-size: 28px;
            font-weight: 900;
            background: linear-gradient(135deg, #667eea, #f093fb);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .app-logo i {
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        /* Theme Toggle Button */
        .theme-toggle {
            background: var(--glass-bg);
            border: 2px solid var(--glass-border);
            color: var(--text-primary);
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 20px;
        }

        .theme-toggle:hover {
            transform: rotate(180deg);
            background: var(--primary-gradient);
            color: white;
            border-color: transparent;
        }

        /* ===================================
           NAVBAR
           =================================== */
        .navbar {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 100px;
            padding: 8px;
            margin-bottom: 30px;
            box-shadow: var(--box-shadow);
        }

        .navbar-nav {
            display: flex;
            width: 100%;
            justify-content: space-around;
            gap: 5px;
        }

        .nav-link {
            color: var(--text-secondary) !important;
            font-weight: 600;
            padding: 12px 20px;
            border-radius: 100px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
        }

        .nav-link.active {
            background: var(--primary-gradient);
            color: white !important;
            box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
        }

        .nav-link:hover:not(.active) {
            background: var(--hover-bg);
            color: var(--text-primary) !important;
        }

        /* ===================================
           CARDS
           =================================== */
        .card {
            background-color: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--card-radius);
            box-shadow: var(--box-shadow);
            margin-bottom: 24px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            overflow: hidden;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
        }
        
        .card-header {
            background-color: var(--header-bg);
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-color);
            border-radius: var(--card-radius) var(--card-radius) 0 0 !important;
            padding: 20px 25px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .card-header i {
            margin-right: 12px;
            font-size: 1.2em;
            color: var(--accent-color);
        }

        .page-title {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 30px;
            text-align: center;
            background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1.5px;
        }

        /* ===================================
           TABLES
           =================================== */
        .balance-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border-radius: 10px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        
        .balance-table th, .balance-table td {
            padding: 14px 16px;
            background-color: var(--card-bg);
            border-bottom: 1px solid var(--border-color);
            vertical-align: middle;
            color: var(--text-primary);
        }
        
        .balance-table th {
            background-color: var(--header-bg);
            font-weight: 600;
            text-align: left;
        }
        
        .balance-table tr:hover td {
            background-color: var(--table-hover);
        }
        
        .balance-table tr:last-child td {
            border-bottom: none;
        }

        /* ===================================
           DEBTORS TABLE STYLES
           =================================== */
        .debtors-table {
            width: 100%;
            border-collapse: collapse;
        }

        .debtors-table thead {
            background: var(--header-bg);
        }

        .debtors-table th {
            padding: 15px;
            font-weight: 600;
            text-align: left;
            color: var(--text-primary);
            border-bottom: 2px solid var(--border-color);
        }

        .debtors-table td {
            padding: 15px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-primary);
        }

        .debtors-table tbody tr {
            transition: all 0.3s ease;
        }

        .debtors-table tbody tr:hover {
            background-color: var(--table-hover);
            transform: scale(1.01);
        }

        .action-btn {
            padding: 8px 12px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 14px;
            margin-right: 5px;
        }

        .btn-edit {
            background: var(--info-color);
            color: white;
        }

        .btn-edit:hover {
            background: #2563eb;
            transform: scale(1.05);
        }

        .btn-delete {
            background: var(--danger-color);
            color: white;
        }

        .btn-delete:hover {
            background: #dc2626;
            transform: scale(1.05);
        }

        .btn-add-debtor {
            background: var(--success-color);
            color: white;
            border: none;
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn-add-debtor:hover {
            background: #059669;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
        }

        /* ===================================
           MODAL STYLES
           =================================== */
        .modal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(5px);
        }

        .modal.show {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .modal-content {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--card-radius);
            padding: 30px;
            max-width: 500px;
            width: 90%;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            animation: modalFadeIn 0.3s ease;
        }

        @keyframes modalFadeIn {
            from {
                opacity: 0;
                transform: scale(0.9);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
        }

        .modal-header h3 {
            color: var(--text-primary);
            font-weight: 700;
        }

        .close-modal {
            background: none;
            border: none;
            font-size: 28px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .close-modal:hover {
            color: var(--danger-color);
            transform: rotate(90deg);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border-color);
            border-radius: var(--input-radius);
            background: var(--glass-bg);
            color: var(--text-primary);
            font-family: 'Poppins', sans-serif;
            transition: all 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
        }

        .modal-actions {
            display: flex;
            gap: 10px;
            justify-content: flex-end;
            margin-top: 25px;
        }

        .btn-primary {
            background: var(--primary-gradient);
            border: none;
            border-radius: 50px;
            padding: 12px 25px;
            font-weight: 600;
            letter-spacing: 0.5px;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(79, 70, 229, 0.3);
            color: white;
            cursor: pointer;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
        }

        .btn-secondary {
            background: var(--hover-bg);
            border: none;
            border-radius: 50px;
            padding: 12px 25px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: var(--glass-bg);
        }

        /* ===================================
           ALERTS & NOTIFICATIONS
           =================================== */
        .alert {
            padding: 15px 20px;
            border-radius: var(--input-radius);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
            animation: slideIn 0.3s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(-20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .alert-success {
            background: rgba(16, 185, 129, 0.1);
            border: 1px solid var(--success-color);
            color: var(--success-color);
        }

        .alert-danger {
            background: rgba(239, 68, 68, 0.1);
            border: 1px solid var(--danger-color);
            color: var(--danger-color);
        }

        .alert-warning {
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid var(--warning-color);
            color: var(--warning-color);
        }

        /* ===================================
           BUSINESS CARDS
           =================================== */
        .business-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 25px;
            margin-bottom: 30px;
        }

        .business-badge {
            background: var(--primary-gradient);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
            box-shadow: 0 3px 10px rgba(99, 102, 241, 0.3);
        }

        .business-badge a {
            color: white;
            text-decoration: none;
        }

        /* ===================================
           REPORT ACTIONS
           =================================== */
        .report-actions {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-top: 30px;
            padding: 20px;
            background: var(--glass-bg);
            backdrop-filter: blur(10px);
            border-radius: 15px;
            border: 1px solid var(--glass-border);
            flex-wrap: wrap;
        }

        .report-actions .btn {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .report-actions .btn a {
            color: white;
            text-decoration: none;
        }

        /* ===================================
           EMPTY STATE
           =================================== */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
        }

        .empty-state i {
            font-size: 80px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        .empty-state h3 {
            color: var(--text-primary);
            margin-bottom: 10px;
        }

        .empty-state p {
            color: var(--text-secondary);
        }

        /* ===================================
           RESPONSIVE DESIGN
           =================================== */
        @media (max-width: 768px) {
            .navbar-nav {
                flex-wrap: wrap;
                gap: 5px;
            }
            
            .nav-link {
                flex: 1 0 45%;
                justify-content: center;
                padding: 10px;
                font-size: 12px;
            }

            .business-grid {
                grid-template-columns: 1fr;
            }

            .report-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .debtors-table {
                font-size: 14px;
            }

            .debtors-table th,
            .debtors-table td {
                padding: 10px;
            }

            .app-header {
                flex-direction: column;
                gap: 15px;
            }
        }

        /* ===================================
           LOADING SPINNER
           =================================== */
        .spinner {
            border: 3px solid var(--glass-border);
            border-top: 3px solid var(--primary-color);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            animation: spin 1s linear infinite;
            margin: 20px auto;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        /* ===================================
           LOADING SPINNER
           =================================== */
        .autocomplete-container {
            position: relative;
        }
        
        .autocomplete-results {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--card-bg);
            border: 2px solid var(--glass-border);
            border-top: none;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            max-height: 200px;
            overflow-y: auto;
            z-index: 1000;
            display: none;
        }
        
        .autocomplete-results.show {
            display: block;
        }
        
        .user-result-item {
            padding: 12px 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all 0.2s ease;
            border-bottom: 1px solid var(--glass-border);
        }
        
        .user-result-item:hover {
            background: rgba(99, 102, 241, 0.1);
        }
        
        .user-result-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            object-fit: cover;
        }
        
        .user-result-info {
            flex: 1;
        }
        
        .user-result-name {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        
        .user-result-email {
            font-size: 12px;
            color: var(--text-secondary);
        }

/* ===================================
  Paula
   =================================== */
    
        /* Cards Mejoradas */
        .card {
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            margin-bottom: 30px;
            overflow: hidden;
            transition: all 0.4s ease;
            animation: fadeInUp 0.6s ease;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 48px rgba(102, 126, 234, 0.3);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .card-header {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(236, 72, 153, 0.1));
            border-bottom: 1px solid var(--glass-border);
            padding: 20px 25px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .card-header i {
            font-size: 24px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .card-title {
            font-size: clamp(16px, 3vw, 20px);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 12px;
            margin: 0;
        }

        .business-badge {
            background: linear-gradient(135deg, var(--success), var(--info));
            color: white;
            padding: 6px 16px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .card-body {
            padding: 25px;
        }

        /* Summary Stats Mejorado */
        .summary-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .stat-card {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(236, 72, 153, 0.08));
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 25px;
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--success));
            opacity: 0;
            transition: opacity 0.3s;
        }

        .stat-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 15px 40px rgba(102, 126, 234, 0.3);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .stat-card:hover::before {
            opacity: 1;
        }

        .stat-card i {
            font-size: 36px;
            margin-bottom: 15px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-card h3 {
            font-size: clamp(20px, 4vw, 28px);
            font-weight: 900;
            margin: 10px 0;
            letter-spacing: -0.5px;
        }

        .stat-card p {
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin: 0;
        }

        /* Tabla Mejorada */
        .balance-table {
            width: 100%;
            margin-bottom: 25px;
            border-collapse: separate;
            border-spacing: 0 8px;
        }

        .balance-table thead th {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(236, 72, 153, 0.15));
            color: var(--text-primary);
            font-weight: 700;
            padding: 15px;
            text-align: left;
            font-size: 13px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            border: none;
        }

        .balance-table thead th:first-child {
            border-radius: 12px 0 0 12px;
        }

        .balance-table thead th:last-child {
            border-radius: 0 12px 12px 0;
        }

        .balance-table tbody tr {
            background: rgba(255, 255, 255, 0.03);
            transition: all 0.3s ease;
        }

        .balance-table tbody tr:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateX(5px);
        }

        .balance-table tbody td {
            padding: 15px;
            border: none;
            color: var(--text-secondary);
            font-size: 14px;
        }

        .balance-table tbody tr td:first-child {
            border-radius: 12px 0 0 12px;
            font-weight: 600;
        }

        .balance-table tbody tr td:last-child {
            border-radius: 0 12px 12px 0;
            font-weight: 700;
            color: var(--text-primary);
        }

        .balance-table tbody tr.table-active {
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(236, 72, 153, 0.2));
            font-weight: 700;
        }

        .balance-table tbody tr.table-active td {
            color: var(--text-primary);
            font-size: 16px;
        }

        /* Chart Container Mejorado */
        .chart-container-wrapper {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 25px;
            margin-top: 25px;
        }

        .chart-legend {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .chart-legend span {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 100px;
            background: rgba(255, 255, 255, 0.05);
        }

        .chart-legend span::before {
            content: '';
            width: 12px;
            height: 12px;
            border-radius: 50%;
            display: block;
        }

        .legend-paula::before { background: #6366f1; }
        .legend-giovanny::before { background: #ec4899; }
        .legend-total::before { background: #10b981; }
        .legend-balance::before { background: #f59e0b; }

        .chart-canvas-container {
            position: relative;
            height: 300px;
            max-width: 500px;
            margin: 0 auto;
        }

        /* Scrollbar Mejorada */
        ::-webkit-scrollbar {
            width: 10px;
            height: 10px;
        }

        ::-webkit-scrollbar-track {
            background: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb {
            background: linear-gradient(180deg, var(--primary), var(--accent));
            border-radius: 10px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(180deg, var(--secondary), var(--accent));
        }

        /* Responsive Mejorado */
        @media (max-width: 768px) {
            .container {
                padding: 10px;
            }

            .navbar-nav {
                gap: 5px;
            }

            .nav-link {
                padding: 8px 10px;
                font-size: 11px;
                min-width: auto;
                flex: 1 1 calc(33.333% - 5px);
            }

            .nav-link span {
                display: none;
            }

            .nav-link i {
                margin: 0;
            }

            .page-title {
                margin: 20px 0;
            }

            .card-body {
                padding: 15px;
            }

            .summary-stats {
                grid-template-columns: 1fr;
                gap: 15px;
            }

            .balance-table {
                font-size: 12px;
            }

            .balance-table thead th,
            .balance-table tbody td {
                padding: 10px 8px;
            }

            .chart-canvas-container {
                height: 250px;
            }

            .card-header {
                padding: 15px;
            }

            .alert {
                padding: 12px 15px;
                font-size: 13px;
            }
        }

        @media (max-width: 480px) {
            .nav-link {
                flex: 1 1 calc(50% - 5px);
                padding: 10px 8px;
            }

            .stat-card {
                padding: 20px 15px;
            }

            .chart-legend {
                gap: 10px;
            }

            .chart-legend span {
                font-size: 11px;
                padding: 4px 10px;
            }
        }
.sofia-history-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #ec4899 0%, #f472b6 100%);
    color: white;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
    position: relative;
    overflow: hidden;
}

.sofia-history-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.sofia-history-btn:hover::before {
    left: 100%;
}

.sofia-history-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(236, 72, 153, 0.4);
    color: white;
}

.sofia-history-btn i {
    font-size: 16px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-4px);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .card-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .sofia-history-btn {
        width: 100%;
        justify-content: center;
    }
}