        * { margin:0; padding:0; box-sizing:border-box; font-family:'Segoe UI',sans-serif; }
        body { background:linear-gradient(135deg,#f5f7fa 0%,#e4e9fd 100%); color:#2c3e50; min-height:100vh; padding:20px 15px; }
        .container { max-width:1100px; margin:0 auto; background:white; border-radius:16px; box-shadow:0 10px 40px rgba(0,0,0,0.08); overflow:hidden; }
        header { background:linear-gradient(135deg,#2c3e50 0%,#34495e 100%); color:white; text-align:center; padding:2rem 1.5rem; }
        .logo { font-size:2.2rem; margin-bottom:0.6rem; display:flex; align-items:center; justify-content:center; gap:10px; }
        .logo i { color:#ff9f43; }
        h1 { font-size:1.8rem; margin-bottom:0.5rem; }
        header p { opacity:0.9; font-size:1rem; }
        .progress-indicator { display:flex; padding:1.2rem 2rem; background:#f8fafc; border-bottom:1px solid #e0e6ed; }
        .progress-step { flex:1; text-align:center; position:relative; font-size:0.9rem; color:#7f8c8d; }
        .progress-step:not(:last-child)::after { content:""; position:absolute; top:16px; left:50%; right:0; height:3px; background:#e0e6ed; z-index:1; }
        .progress-step.active:not(:last-child)::after { background:#3498db; }
        .step-circle { width:38px; height:38px; line-height:38px; background:#e0e6ed; color:#7f8c8d; border-radius:50%; margin:0 auto 6px; font-weight:600; z-index:2; transition:all 0.3s; }
        .progress-step.active .step-circle { background:#3498db; color:white; box-shadow:0 0 0 4px rgba(52,152,219,0.2); }
        .progress-step.active { color:#3498db; font-weight:600; }
        .step-content { padding:2rem 1.8rem; display:none; opacity:0; transform:translateY(10px); transition:all 0.4s; }
        .step-content.active { display:block; opacity:1; transform:translateY(0); }
        .form-section { margin-bottom:1.8rem; }
        .section-title { font-size:1.35rem; margin-bottom:1.2rem; padding-bottom:0.6rem; border-bottom:2px solid #3498db; display:flex; align-items:center; gap:8px; }
        .section-title i { color:#3498db; }
        .form-group { margin-bottom:1.2rem; }
        label { display:block; margin-bottom:0.4rem; font-weight:600; color:#2c3e50; font-size:0.95rem; }
        .required::after { content:" *"; color:#e74c3c; font-size:0.85rem; }
        input, textarea { width:100%; padding:12px 14px; border:2px solid #dfe6e9; border-radius:8px; font-size:0.95rem; background:#f9fafb; transition:all 0.25s; }
        input:focus, textarea:focus { outline:none; border-color:#3498db; background:white; box-shadow:0 0 0 3px rgba(52,152,219,0.15); }
        textarea { min-height:100px; resize:vertical; }
        .optional-badge { font-size:0.75rem; background:#e8f0fe; color:#5f7d95; padding:2px 8px; border-radius:16px; margin-left:6px; }
        .pet-options { display:flex; flex-wrap:wrap; gap:10px; margin-top:0.5rem; }
        .pet-option { flex:1; min-width:110px; }
        .pet-option input { display:none; }
        .pet-option label { padding:10px; background:#f9fafb; border:2px solid #dfe6e9; border-radius:8px; text-align:center; cursor:pointer; transition:all 0.25s; font-size:0.9rem; }
        .pet-option input:checked + label { border-color:#3498db; background:rgba(52,152,219,0.08); color:#3498db; font-weight:600; }
        .payment-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
        @media (max-width:600px) { .payment-row { grid-template-columns:1fr; } }
        .cvv-info { position:relative; display:inline-block; margin-left:5px; cursor:help; }
        .cvv-info:hover .tooltip { visibility:visible; opacity:1; transform:translateX(-50%) translateY(0); }
        .tooltip { visibility:hidden; position:absolute; bottom:130%; left:50%; transform:translateX(-50%) translateY(8px); width:200px; background:#2c3e50; color:white; text-align:center; padding:8px; border-radius:6px; font-size:0.8rem; opacity:0; transition:all 0.25s; pointer-events:none; z-index:10; }
        .step-buttons { margin-top:2rem; display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap; }
        .btn { padding:12px 28px; font-size:1rem; font-weight:600; border-radius:8px; cursor:pointer; transition:all 0.25s; border:none; display:flex; align-items:center; justify-content:center; gap:8px; }
        .btn-primary { background:linear-gradient(135deg,#2ecc71 0%,#27ae60 100%); color:white; box-shadow:0 4px 12px rgba(46,204,113,0.3); min-width:180px; }
        .btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 16px rgba(46,204,113,0.4); }
        .btn-secondary { background:#95a5a6; color:white; padding:10px 20px; font-size:0.92rem; min-width:120px; }
        .btn-secondary:hover { background:#7f8c8d; }
        .form-note { text-align:center; color:#7f8c8d; font-size:0.85rem; margin-top:1rem; }
        footer { text-align:center; padding:1.5rem; color:#95a5a6; font-size:0.85rem; border-top:1px solid #e0e6ed; background:#f8fafc; }
        @media (max-width:768px) {
            .step-buttons { flex-direction:column; align-items:stretch; }
            .btn { width:100%; max-width:none; }
            .btn-secondary { order:2; margin-top:10px; }
            .btn-primary { order:1; }
        }

        /* Decline popup modal */
        #declineModal {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0,0,0,0.55);
        }
        .modal-content {
            background-color: #fff;
            margin: 15% auto;
            padding: 24px 20px;
            border-radius: 12px;
            width: 90%;
            max-width: 400px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            text-align: center;
            position: relative;
        }
        .close {
            position: absolute;
            right: 16px;
            top: 8px;
            color: #aaa;
            font-size: 26px;
            font-weight: bold;
            cursor: pointer;
        }
        .close:hover { color: #333; }
        #modalDeclineReason {
            font-size: 1.05rem;
            color: #c0392b;
            margin: 18px 0 28px;
            line-height: 1.45;
        }
        .modal-icon {
            font-size: 2.8rem;
            color: #e74c3c;
            margin-bottom: 12px;
        }
        #modalTryAnotherBtn {
            width: 100%;
            max-width: 260px;
            margin: 0 auto;
            display: flex;
            justify-content: center;
        }