:root {
            --bg-main: #f3f4f6;
            --primary: #1e1b4b; 
            --accent: #4f46e5; --accent-hover: #4338ca;
            --success: #16a34a; --success-bg: #dcfce7;
            --danger: #dc2626; --danger-bg: #fee2e2;
            --warning: #ea580c; --warning-bg: #ffedd5;
            --card-bg: #ffffff;
            --text-main: #111827; --text-muted: #6b7280;
            --border: #e5e7eb;
            --radius-lg: 16px; --radius-md: 12px;
        }
        
        * { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Plus Jakarta Sans', sans-serif; -webkit-tap-highlight-color: transparent; }
        body { background: var(--bg-main); color: var(--text-main); display: flex; justify-content: center; }
        
        .app-wrapper { width: 100%; max-width: 500px; background: var(--bg-main); min-height: 100vh; position: relative; box-shadow: 0 0 20px rgba(0,0,0,0.05); overflow-x: hidden; }

        /* Login Screen & Disambiguation Screen */
        .login-overlay { position: absolute; top: 0; left: 0; width: 100%; min-height: 100vh; background: var(--card-bg); display: flex; flex-direction: column; justify-content: center; align-items: center; z-index: 2000; padding: 24px; text-align: center; }
        .login-overlay img { width: 80px; height: 80px; border-radius: 20px; margin-bottom: 20px; box-shadow: 0 8px 16px rgba(0,0,0,0.1); }
        .login-overlay h2 { font-size: 24px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
        .login-overlay h3 { font-size: 14px; font-weight: 700; color: var(--accent); margin-bottom: 24px; text-transform: uppercase; letter-spacing: 0.5px; }
        .login-overlay p { font-size: 13px; color: var(--text-muted); margin-bottom: 30px; line-height: 1.5; padding: 0 10px; }
        .login-overlay input { width: 100%; padding: 16px; border-radius: var(--radius-md); border: 2px solid var(--border); font-size: 15px; margin-bottom: 20px; outline: none; transition: 0.3s; text-align: center; font-weight: 600; }
        .login-overlay input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1); }
        .login-overlay button { width: 100%; padding: 16px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius-md); font-size: 16px; font-weight: 700; cursor: pointer; transition: 0.2s; box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3); }
        .login-overlay button:active { transform: scale(0.98); background: var(--accent-hover); }
        .login-overlay .btn-secondary { background: var(--bg-main); color: var(--text-main); border: 2px solid var(--border); box-shadow: none; margin-top: 10px; }

        /* App Header */
        .app-header { background: var(--card-bg); padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 10px rgba(0,0,0,0.04); }
        .brand { display: flex; align-items: center; gap: 12px; }
        .brand img { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; }
        .brand div h1 { font-size: 16px; font-weight: 800; color: var(--primary); line-height: 1.2; }
        .brand div span { font-size: 10px; font-weight: 700; color: var(--text-muted); }
        
        /* Updated Logout Button with Text Below Icon */
        .btn-logout-wrapper { background: transparent; border: none; display: flex; flex-direction: column; align-items: center; justify-content: center; cursor: pointer; gap: 4px; padding: 0; }
        .btn-logout-wrapper .icon-box { background: var(--danger-bg); color: var(--danger); width: 34px; height: 34px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 14px; transition: 0.2s; }
        .btn-logout-wrapper:hover .icon-box { background: var(--danger); color: white; }
        .btn-logout-wrapper span { font-size: 9px; font-weight: 800; color: var(--danger); text-transform: uppercase; letter-spacing: 0.5px; }

        /* Slim Policy Banner */
        .slim-banner { background: var(--warning-bg); color: #9a3412; padding: 12px 16px; font-size: 11px; font-weight: 600; display: flex; justify-content: space-between; align-items: flex-start; line-height: 1.5; border-bottom: 1px solid #fdba74; }
        .slim-banner i { color: var(--warning); margin-right: 6px; font-size: 14px; margin-top: 2px;}
        .close-banner { background: none; border: none; font-size: 16px; color: #9a3412; padding-left: 10px; cursor: pointer; opacity: 0.7;}

        .container { padding: 16px; }
        .error-box { background: var(--danger-bg); color: var(--danger); padding: 14px; border-radius: var(--radius-md); margin-bottom: 16px; font-size: 13px; font-weight: 600; text-align: center; border: 1px solid #fecaca; }
        
        .empty-state { text-align: center; padding: 60px 20px; background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border); }
        .empty-state i { font-size: 48px; color: var(--border); margin-bottom: 16px; }
        .empty-state h3 { font-size: 16px; color: var(--primary); margin-bottom: 8px; font-weight: 800; }
        .empty-state p { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }
        
        /* Premium Card UI */
        .plan-card { background: var(--card-bg); border-radius: var(--radius-lg); margin-bottom: 20px; border: 1px solid var(--border); box-shadow: 0 8px 24px rgba(0,0,0,0.06); overflow: hidden; position: relative; }
        .plan-card.is-overdue { border: 1px solid #fca5a5; }
        .plan-card.is-overdue::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: var(--danger); }
        .plan-card.is-defaulter { border: 1px solid #991b1b; }
        .plan-card.is-defaulter::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%; background: #991b1b; }

        .c-header { padding: 16px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; background: #fafafa; }
        .c-lan span { display: block; font-size: 10px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; margin-bottom: 2px;}
        .c-lan strong { display: block; font-size: 14px; font-weight: 800; color: var(--primary); }
        
        .badge { padding: 6px 10px; border-radius: 8px; font-size: 10px; font-weight: 800; letter-spacing: 0.5px; display: inline-flex; align-items: center; gap: 4px; }
        .badge.active { background: var(--success-bg); color: var(--success); }
        .badge.overdue { background: var(--danger); color: #fff; animation: pulse 2s infinite; }
        .badge.defaulter { background: #991b1b; color: #fff; animation: pulse 1s infinite; }
        .badge.completed { background: #e5e7eb; color: #4b5563; }

        @keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.8; } 100% { opacity: 1; } }

        /* Alerts */
        .alert-box { padding: 14px 16px; display: flex; align-items: center; gap: 12px; font-size: 12px; font-weight: 700; }
        .alert-defaulter { background: #fef2f2; border-bottom: 1px solid #fecaca; color: #991b1b; }
        .alert-defaulter i { font-size: 20px; }
        .alert-overdue { background: var(--danger-bg); color: var(--danger); justify-content: space-between; border-bottom: 1px solid #fecaca; }
        .pen-amt { background: #fff; padding: 4px 8px; border-radius: 6px; color: var(--danger); border: 1px solid #fca5a5; }

        /* Details List (Styled with internal padding and shadow) */
        .info-container { padding: 16px; }
        .info-list { padding: 14px 16px; display: flex; flex-direction: column; gap: 12px; background: #ffffff; border-radius: var(--radius-md); border: 1px solid #f3f4f6; box-shadow: 0 4px 12px rgba(0,0,0,0.04); }
        .info-row { display: flex; justify-content: space-between; align-items: flex-start; font-size: 12px; border-bottom: 1px dashed var(--border); padding-bottom: 12px; }
        .info-row:last-child { border-bottom: none; padding-bottom: 0; }
        .info-label { color: var(--text-muted); font-weight: 600; min-width: 100px; display: flex; align-items: center; gap: 6px; }
        .info-label i { color: var(--accent); opacity: 0.7; width: 14px; text-align: center; }
        .info-val { color: var(--text-main); font-weight: 700; text-align: right; }
        .info-val.green { color: var(--success); }
        .info-val small { display: block; font-size: 10px; color: var(--text-muted); font-weight: 600; margin-top: 2px; }

        /* Finance Grid (Styled with internal shadow) */
        .fin-grid { display: grid; grid-template-columns: 1fr 1fr; background: #fafafa; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); box-shadow: inset 0 2px 8px rgba(0,0,0,0.02); }
        .fin-box { padding: 16px; text-align: center; border-right: 1px solid var(--border); }
        .fin-box:last-child { border-right: none; }
        .fin-box label { display: flex; justify-content: center; align-items: center; gap: 4px; font-size: 10px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; margin-bottom: 6px; }
        .fin-box label i { color: var(--accent); opacity: 0.6; }
        .fin-box .val { font-size: 20px; font-weight: 800; color: var(--primary); }
        .fin-box .val.red { color: var(--danger); }
        .fin-box .val.green { color: var(--success); }
        .fin-box .sub { display: block; font-size: 11px; font-weight: 600; color: var(--text-muted); margin-top: 4px; }

        /* Actions */
        .c-actions { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
        .btn { width: 100%; padding: 14px; border-radius: var(--radius-md); font-size: 14px; font-weight: 800; border: none; display: flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; transition: 0.2s; }
        .btn:active { transform: scale(0.98); }
        .btn-pay-next { background: var(--accent); color: #fff; box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25); }
        .btn-pay-next.red { background: var(--danger); box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25); }
        .btn-pay-all { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(30, 27, 75, 0.25); }
        .btn-outline { background: var(--card-bg); color: var(--primary); border: 2px solid var(--border); }
        .btn-disabled { background: var(--border); color: var(--text-muted); cursor: not-allowed; }
        
        .btn-mini-pay { background: var(--accent); color: #fff; border: none; padding: 8px 12px; border-radius: 8px; font-size: 11px; font-weight: 700; display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; transition: 0.2s;}
        .btn-mini-pay:active { transform: scale(0.95); }

        /* Bottom Sheet Modal */
        .modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(2px); display: none; justify-content: center; align-items: flex-end; z-index: 1000; opacity: 0; transition: opacity 0.3s ease; }
        .modal-overlay.show { opacity: 1; display: flex; }
        
        .modal { background: var(--bg-main); width: 100%; max-width: 500px; height: 85vh; border-radius: 24px 24px 0 0; display: flex; flex-direction: column; transform: translateY(100%); transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1); box-shadow: 0 -5px 25px rgba(0,0,0,0.15); }
        .modal-overlay.show .modal { transform: translateY(0); }
        
        .modal-header { padding: 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; background: var(--card-bg); border-radius: 24px 24px 0 0; z-index: 10; }
        .modal-header h3 { font-size: 16px; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 8px; }
        .close-modal { width: 32px; height: 32px; background: var(--bg-main); border: none; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 14px; cursor: pointer; }
        
        .modal-body { padding: 16px; overflow-y: auto; flex: 1; }
        
        /* History List inside Modal */
        .h-list { display: flex; flex-direction: column; gap: 12px; }
        .h-item { background: var(--card-bg); border-radius: var(--radius-md); padding: 14px; border: 1px solid var(--border); display: flex; justify-content: space-between; align-items: flex-start; box-shadow: 0 2px 8px rgba(0,0,0,0.03); }
        .h-item.paid { border-left: 4px solid var(--success); }
        .h-item.bounced { border-left: 4px solid var(--danger); background: var(--danger-bg); border-color: #fecaca; }
        .h-item.pending { border-left: 4px solid var(--warning); }
        
        .h-left strong { display: block; font-size: 13px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
        .h-left span { display: block; font-size: 11px; font-weight: 600; color: var(--text-muted); }
        .h-left .pen-text { color: var(--danger); font-size: 10px; font-weight: 800; margin-top: 4px; display: inline-block;}
        
        .h-right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; }
        .h-right .amt { font-size: 15px; font-weight: 800; color: var(--primary); }
        .h-right .status { font-size: 9px; font-weight: 800; padding: 3px 6px; border-radius: 4px; margin-top: 4px; letter-spacing: 0.5px; }
        .st-paid { background: var(--success-bg); color: var(--success); }
        .st-bounced { background: var(--danger); color: #fff; }
        .st-pending { background: var(--warning-bg); color: var(--warning); }