/* ================= VARIABLES & THEME SETUP ================= */
        :root {
            --primary: #00aaff;
            --primary-dark: #008ecc;
            --primary-light: #e0f2fe;
            --bg-body: #f8faff;
            --bg-card: #ffffff;
            --text-main: #1e293b;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
            --sidebar-width: 260px;
            --header-height: 70px;
            --nav-height: 70px;
            --shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
            --radius: 16px;
            --success: #10b981;
            --warning: #f59e0b;
            --danger: #ef4444;
            --purple: #8b5cf6;
            --info: #3b82f6;
        }

        body.dark-mode {
            --primary: #53d6ff;
            --primary-dark: #00aaff;
            --primary-light: #1e3a8a;
            --bg-body: #0f172a;
            --bg-card: #1e293b;
            --text-main: #f1f5f9;
            --text-muted: #94a3b8;
            --border-color: #334155;
            --shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
            transition: background 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.3s;
        }

        body {
            background-color: var(--bg-body);
            color: var(--text-main);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            padding-bottom: 70px;
        }

        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }

        /* ================= SIDEBAR ================= */
        .sidebar {
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-card);
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1200;
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease;
        }
        
        @media (max-width: 768px) {
            .sidebar { 
                transform: translateX(-100%); 
                width: 280px; 
            }
            .sidebar.active { 
                transform: translateX(0); 
                box-shadow: 0 0 50px rgba(0,0,0,0.5); 
            }
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            backdrop-filter: blur(3px);
        }
        
        .sidebar-overlay.active {
            display: block;
        }

        .brand {
            height: var(--header-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid var(--border-color);
            flex-shrink: 0;
        }

        .brand-logo { width: 45px; height: 45px; overflow: hidden; flex-shrink: 0; margin-right: 12px; }
        .brand-logo img { width: 100%; height: 100%; object-fit: contain; }

        .brand-text {
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
        }

        .sidebar-menu {
            padding: 20px 0;
            flex: 1;
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-menu::-webkit-scrollbar { width: 6px; }
        .sidebar-menu::-webkit-scrollbar-track { background: transparent; }
        .sidebar-menu::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
        .sidebar-menu::-webkit-scrollbar-thumb:hover { background: var(--primary); }

        .menu-item {
            padding: 12px 24px;
            display: flex;
            align-items: center;
            color: var(--text-muted);
            font-weight: 500;
            border-left: 4px solid transparent;
            margin-bottom: 2px;
        }

        .menu-item i { 
            width: 25px; 
            font-size: 18px; 
            margin-right: 12px; 
            text-align: center;
        }

        .menu-item:hover, .menu-item.active {
            background: var(--primary-light);
            color: var(--primary);
            border-left-color: var(--primary);
        }

        .sidebar-footer { 
            padding: 20px; 
            border-top: 1px solid var(--border-color); 
            margin-top: auto; 
            flex-shrink: 0;
        }

        .logout-btn {
            width: 100%; padding: 12px; background: rgba(239, 68, 68, 0.1); color: #ef4444; border: none;
            border-radius: 8px; cursor: pointer; font-weight: 600; display: flex; align-items: center; justify-content: center;
            gap: 10px; transition: 0.2s;
        }
        .logout-btn:hover { background: #ef4444; color: white; }

        /* ================= MAIN CONTENT ================= */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--sidebar-width));
            flex-grow: 1;
        }
        
        @media (max-width: 768px) {
            .main-content { margin-left: 0; width: 100%; }
        }

        .header-logo { display: flex; align-items: center; gap: 10px; }
        .header-logo img { width: 38px; height: 38px; border-radius: 8px; }
        .header-logo span { font-size: 22px; font-weight: 700; color: var(--primary); }

        .top-header {
            height: var(--header-height);
            background: var(--bg-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 30px;
            position: sticky;
            top: 0;
            z-index: 900;
            border-bottom: 1px solid var(--border-color);
            flex-shrink: 0;
        }

        .menu-toggle { display: none; font-size: 24px; cursor: pointer; color: var(--text-main); }
        @media (max-width: 768px) { .menu-toggle { display: block; } }

        .header-right { display: flex; align-items: center; gap: 20px; }
        
        .notif-btn {
            position: relative;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .notif-btn i {
            font-size: 22px;
            color: var(--text-main);
        }

        .notif-badge {
            position: absolute; 
            top: -8px; 
            right: -8px; 
            background: #ef4444; 
            color: white; 
            border-radius: 50%; 
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 11px; 
            font-weight: 600;
            border: 2px solid var(--bg-card);
            z-index: 100;
        }

        .eye-toggle {
            background: var(--primary-light); 
            border: none; 
            color: var(--text-main);
            width: 40px; 
            height: 40px; 
            border-radius: 50%; 
            cursor: pointer;
            display: flex; 
            align-items: center; 
            justify-content: center;
            font-size: 18px;
            transition: 0.3s;
        }

        .container {
            padding: 30px;
            max-width: 1400px;
            margin: 0 auto;
            width: 100%;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        /* ================= PAGE HEADER ================= */
        .page-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }

        .page-title {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .page-title i {
            font-size: 28px;
            color: var(--primary);
            background: var(--primary-light);
            width: 40px;
            height: 40px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .page-title h1 {
            font-size: 24px;
            font-weight: 600;
            color: var(--primary);
        }

        .page-title p {
            color: var(--text-muted);
            font-size: 14px;
            margin-top: 5px;
        }

        /* ================= GRID LAYOUT ================= */
        .settings-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        @media (max-width: 968px) {
            .settings-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ================= CARDS ================= */
        .settings-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
        }

        .card-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 25px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
        }

        .card-header i {
            font-size: 28px;
            color: var(--primary);
            background: var(--primary-light);
            width: 50px;
            height: 50px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .card-header h2 {
            font-size: 18px;
            color: var(--text-main);
        }

        /* ================= FORM STYLES ================= */
        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 10px;
            color: var(--text-main);
            font-weight: 600;
            font-size: 14px;
        }

        .form-group label i {
            color: var(--primary);
            margin-right: 8px;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border-color);
            border-radius: 10px;
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--bg-card);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .form-group select {
            cursor: pointer;
            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='%2364748b' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            padding-right: 40px;
        }

        /* PIN Input Special Style */
        .pin-input {
            text-align: center;
            font-size: 24px;
            letter-spacing: 10px;
            font-weight: 700;
        }

        .pin-inputs {
            display: flex;
            gap: 15px;
            justify-content: center;
            margin: 20px 0;
        }

        .pin-digit {
            width: 60px;
            height: 60px;
            border: 2px solid var(--border-color);
            border-radius: 10px;
            background: var(--bg-body);
            color: var(--text-main);
            font-size: 24px;
            font-weight: 700;
            text-align: center;
            transition: all 0.3s;
        }

        .pin-digit:focus {
            outline: none;
            border-color: var(--primary);
            background: var(--bg-card);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .info-box {
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 15px 20px;
            border-radius: 8px;
            margin-top: 20px;
            margin-bottom: 20px;
        }

        .info-box p {
            font-size: 13px;
            color: var(--text-main);
            margin: 5px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .info-box i {
            color: var(--primary);
            margin-top: 2px;
        }

        .warning-box {
            background: rgba(245, 158, 11, 0.1);
            border-left: 4px solid var(--warning);
            padding: 15px 20px;
            border-radius: 8px;
            margin-top: 20px;
            margin-bottom: 20px;
        }

        .warning-box p {
            font-size: 13px;
            color: var(--text-main);
            margin: 5px 0;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .warning-box i {
            color: var(--warning);
            margin-top: 2px;
        }

        /* ================= BUTTONS ================= */
        .submit-btn {
            width: 100%;
            padding: 14px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: all 0.3s;
            box-shadow: 0 4px 12px rgba(0, 170, 255, 0.3);
        }

        .submit-btn:hover:not(:disabled) {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 170, 255, 0.4);
        }

        .submit-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
        }

        .submit-btn-success {
            background: var(--success);
            box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
        }

        .submit-btn-success:hover:not(:disabled) {
            background: #0da271;
            box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
        }

        /* ================= SAVED BANKS TABLE ================= */
        .banks-container {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            border: 1px solid var(--border-color);
            margin-bottom: 30px;
        }

        .banks-header {
            padding: 25px 30px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .banks-header i {
            font-size: 24px;
            color: var(--primary);
            background: var(--primary-light);
            width: 45px;
            height: 45px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .banks-header h2 {
            font-size: 18px;
            color: var(--text-main);
        }

        .table-container {
            overflow-x: auto;
        }

        .table-container::-webkit-scrollbar {
            height: 8px;
        }

        .table-container::-webkit-scrollbar-track {
            background: transparent;
        }

        .table-container::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }

        .table-container::-webkit-scrollbar-thumb:hover {
            background: var(--primary);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            min-width: 800px;
        }

        th, td {
            padding: 18px 20px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            background: var(--primary);
            color: white;
            font-weight: 600;
            position: sticky;
            top: 0;
            z-index: 10;
        }

        tbody tr:hover {
            background: var(--bg-body);
        }

        .bank-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 12px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
        }

        .primary-badge {
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            background: rgba(16, 185, 129, 0.1);
            color: var(--success);
        }

        .action-btn {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: 0.2s;
            margin: 0 3px;
        }

        .btn-edit {
            background: rgba(59, 130, 246, 0.1);
            color: var(--info);
        }

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

        .btn-delete {
            background: rgba(239, 68, 68, 0.1);
            color: var(--danger);
        }

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

        .btn-primary {
            background: rgba(16, 185, 129, 0.1);
            color: var(--success);
        }

        .btn-primary:hover {
            background: var(--success);
            color: white;
        }

        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
        }

        .empty-state i {
            font-size: 60px;
            margin-bottom: 20px;
            color: var(--border-color);
        }

        .empty-state h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        /* ================= MODAL ================= */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 2000;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(3px);
            animation: fadeIn 0.3s;
        }

        .modal-overlay.active {
            display: flex;
            padding-bottom: 70px;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .modal {
            background: var(--bg-card);
            border-radius: 20px;
            padding: 40px;
            max-width: 450px;
            width: 90%;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            animation: slideUp 0.5s;
        }

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

        .modal-icon {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 40px;
            margin: 0 auto 20px;
            background: rgba(239, 68, 68, 0.1);
            color: var(--danger);
        }

        .modal h3 {
            color: var(--text-main);
            margin-bottom: 15px;
            font-size: 22px;
        }

        .modal p {
            color: var(--text-muted);
            margin-bottom: 25px;
            line-height: 1.6;
        }

        .modal-actions {
            display: flex;
            gap: 15px;
            justify-content: center;
        }

        .btn-modal {
            padding: 12px 30px;
            border-radius: 10px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: 0.3s;
            min-width: 120px;
        }

        .btn-modal-secondary {
            background: var(--bg-body);
            color: var(--text-main);
            border: 1px solid var(--border-color);
        }

        .btn-modal-secondary:hover {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

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

        .btn-modal-danger:hover {
            background: #dc2626;
        }

        /* ================= TOAST ================= */
        .toast-container {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 3000;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .toast {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 15px 20px;
            min-width: 300px;
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 15px;
            animation: slideInRight 0.3s ease;
            border-left: 5px solid var(--primary);
            border: 1px solid var(--border-color);
        }

        .toast.success { border-left-color: #10b981; }
        .toast.error { border-left-color: #ef4444; }
        .toast.warning { border-left-color: #f59e0b; }

        .toast-icon {
            font-size: 20px;
        }

        .toast.success .toast-icon { color: #10b981; }
        .toast.error .toast-icon { color: #ef4444; }
        .toast.warning .toast-icon { color: #f59e0b; }

        .toast-content {
            flex: 1;
        }

        .toast-content strong {
            display: block;
            margin-bottom: 5px;
            font-size: 14px;
        }

        .toast-content p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
        }

        @keyframes slideInRight {
            from {
                transform: translateX(100%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        /* ================= FOOTER ================= */
        
        
        
        
        .footer-links a {
            color: var(--text-muted);
            transition: color 0.3s;
            font-size: 14px;
            white-space: nowrap;
        }
        
        .footer-links a:hover {
            color: var(--primary);
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin: 20px 0;
            flex-wrap: wrap;
        }
        
        .social-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            transition: 0.3s;
            flex-shrink: 0;
        }
        
        .social-icon:hover {
            background: var(--primary);
            color: white;
            transform: translateY(-3px);
        }

        /* ================= RESPONSIVE ================= */
        @media (max-width: 768px) {
            .container {
                padding: 20px 15px;
            }

            .pin-digit {
                width: 50px;
                height: 50px;
                font-size: 20px;
            }

            .pin-inputs {
                gap: 10px;
            }

            .modal-actions {
                flex-direction: column;
            }

            .btn-modal {
                width: 100%;
            }
        }

        /* Bottom Nav */
        .bottom-nav { position: fixed; bottom: 0; left: 0; right: 0; height: var(--nav-height); background: var(--bg-card); border-top: 1px solid var(--border-color); display: flex; justify-content: space-around; align-items: center; z-index: 1000; box-shadow: 0 -5px 20px rgba(0,0,0,0.1); }
        .nav-item { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--text-muted); padding: 8px 12px; border-radius: 8px; transition: 0.3s; flex: 1; max-width: 75px; text-decoration: none; }
        .nav-item i { font-size: 20px; }
        .nav-item span { font-size: 11px; font-weight: 500; }
        .nav-item.active, .nav-item:hover { color: var(--primary); background: var(--primary-light); }
        
        /* Modal */
        .modal-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 9999; align-items: center; justify-content: center; }
        .modal-overlay.active { display: flex; }
        @keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

        .menu-group-label {
            padding: 16px 24px 5px;
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            color: var(--text-muted);
            opacity: 0.55;
            pointer-events: none;
            user-select: none;
            list-style: none;
        }