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768px){.form-row{grid-template-columns:1fr}.form-header{flex-direction:column;gap:16px;align-items:flex-start}.form-actions{flex-direction:column}}.pay-advice-modal-overlay{position:fixed;inset:0;background:var(--bg-overlay);display:flex;align-items:center;justify-content:center;z-index:var(--z-modal-backdrop);padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.pay-advice-modal{background:var(--bg-primary);border-radius:16px;width:100%;max-width:480px;box-shadow:0 25px 50px #00000040;overflow:hidden}.pay-advice-modal-header{display:flex;justify-content:space-between;align-items:center;padding:24px 32px;background:linear-gradient(135deg,#4169e1,#3651d4);color:#fff}.modal-logo{font-size:20px;font-weight:700;color:#fff}.close-btn{background:#fff3;border:none;padding:8px;cursor:pointer;border-radius:8px;color:#fff;transition:all .2s;display:flex;align-items:center;justify-content:center}.close-btn:hover{background:#ffffff4d}.pay-advice-modal-content{padding:32px}.payment-amount-display{text-align:center;margin-bottom:32px}.payment-amount-display h2{margin:0 0 16px;font-size:24px;font-weight:600;color:var(--text-primary)}.amount-value{font-size:48px;font-weight:700;color:var(--primary-color);margin-bottom:8px;line-height:1}.amount-description{margin:0;font-size:16px;color:var(--text-secondary)}.amount-warning{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:12px 16px;margin-bottom:24px;color:#dc2626;font-size:14px;text-align:center}.payment-form{display:flex;flex-direction:column;gap:24px}.payment-method-section{display:flex;flex-direction:column;gap:8px}.payment-method-label{font-size:14px;font-weight:600;color:var(--text-primary)}.payment-method-select{width:100%;padding:14px 16px;border:2px solid var(--border-color);border-radius:12px;font-size:16px;background:var(--bg-primary);cursor:pointer;transition:all .2s}.payment-method-select:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4169e11a}.payment-amount-section{display:flex;flex-direction:column;gap:8px}.payment-amount-label{font-size:14px;font-weight:600;color:var(--text-primary)}.amount-input-container{position:relative;display:flex;align-items:center}.currency-symbol{position:absolute;left:16px;font-size:16px;font-weight:600;color:var(--text-secondary);z-index:1}.payment-amount-input{width:100%;padding:14px 16px 14px 40px;border:2px solid var(--border-color);border-radius:12px;font-size:16px;font-weight:600;background:var(--bg-primary);transition:all .2s}.payment-amount-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4169e11a}.amount-hint{font-size:12px;color:var(--text-secondary);text-align:center;margin-top:4px}.payment-error{background:#fef2f2;color:#dc2626;padding:12px 16px;border-radius:8px;border:1px solid #fecaca;font-size:14px;white-space:pre-line;line-height:1.5;margin-bottom:16px}.payment-success{background:linear-gradient(135deg,#e8f5e8,#f0f8f0);border:1px solid #4caf50;color:#2e7d32;padding:16px;border-radius:12px;margin:16px 0;display:flex;align-items:center;gap:12px;animation:successSlideIn .3s ease-out}.success-icon{font-size:24px;flex-shrink:0}.success-message h3{margin:0 0 4px;font-size:16px;font-weight:600;color:#1b5e20}.success-message p{margin:0;font-size:14px;color:#2e7d32}@keyframes successSlideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.payment-actions{display:flex;gap:12px;justify-content:space-between;margin-top:8px}.cancel-btn{flex:1;background:var(--bg-secondary);color:var(--text-secondary);border:2px solid 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#3b82f61a}.form-textarea::placeholder{color:var(--text-muted)}.form-textarea:disabled{background:var(--bg-secondary);color:var(--text-secondary);cursor:not-allowed}.reason-textarea{min-height:150px;font-size:16px;line-height:1.6;padding:16px}.reason-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.word-count{font-size:12px;color:var(--text-secondary);font-weight:500;background:var(--bg-hover);padding:4px 8px;border-radius:4px}.textarea-footer{display:flex;justify-content:flex-end;margin-top:8px}.char-count{font-size:12px;color:var(--text-muted)}.payment-actions{padding:24px;display:flex;gap:12px;justify-content:flex-end;background:var(--bg-secondary);border-top:1px solid var(--border-color)}.cancel-btn{background:var(--bg-primary);color:var(--text-secondary);border:2px solid var(--border-color);padding:12px 24px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:100px}.proceed-btn{background:#10b981;color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:120px}.error-message{background:#fef2f2;color:#dc2626;padding:12px 16px;font-size:14px;border-radius:8px;border:1px solid #fecaca;display:flex;align-items:center;gap:8px}@media (max-width: 768px){.modal-overlay{padding:10px}.payment-style-modal{max-width:100%;margin:0}.payment-modal-header{padding:16px 20px}.payment-modal-header h2{font-size:16px}.invoice-summary{padding:16px 20px}.details-grid{grid-template-columns:1fr;gap:12px}.summary-item{padding:10px}.payment-form{padding:20px;gap:16px}.payment-actions{padding:20px;flex-direction:column}.cancel-btn,.proceed-btn{width:100%;padding:14px 24px;font-size:16px}}@media (max-width: 480px){.payment-modal-header{padding:12px 16px}.payment-modal-header h2{font-size:14px}.invoice-summary{padding:12px 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