.ul-field-error {
            display: block;
            color: #e53935;
            font-size: 12px;
            margin-top: 5px;
            margin-left: 2px;
        }
        .ul-form .form-group input.input-error,
        .ul-form .form-group textarea.input-error {
            border-color: #e53935 !important;
        }
        .ul-form .form-group input.input-success,
        .ul-form .form-group textarea.input-success {
            border-color: #43a047 !important;
        }
        #contact-toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 99999;
            min-width: 280px;
            padding: 14px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: #fff;
            box-shadow: 0 4px 20px rgba(0,0,0,0.18);
            display: none;
            animation: slideIn 0.3s ease;
        }
        #contact-toast.toast-success { background: #43a047; }
        #contact-toast.toast-error   { background: #e53935; }
        @keyframes slideIn {
            from { opacity: 0; transform: translateY(20px); }
            to   { opacity: 1; transform: translateY(0); }
        }
        #contact-submit-btn .btn-spinner {
            display: none;
            width: 16px;
            height: 16px;
            border: 2px solid rgba(255,255,255,0.4);
            border-top-color: #fff;
            border-radius: 50%;
            animation: spin 0.7s linear infinite;
            margin-left: 8px;
            vertical-align: middle;
        }
        #contact-submit-btn.loading .btn-spinner { display: inline-block; }
        #contact-submit-btn.loading .btn-text    { opacity: 0.7; }
        @keyframes spin { to { transform: rotate(360deg); } }
        #wa-redirect-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.55);
            z-index: 999999;
            align-items: center;
            justify-content: center;
        }
        #wa-redirect-overlay.show { display: flex; }
        #wa-redirect-box {
            background: #fff;
            border-radius: 12px;
            padding: 36px 32px;
            text-align: center;
            max-width: 380px;
            width: 90%;
            box-shadow: 0 8px 40px rgba(0,0,0,0.2);
        }
        #wa-redirect-box .wa-icon { font-size: 48px; margin-bottom: 12px; }
        #wa-redirect-box h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #1a1a1a;
        }
        #wa-redirect-box p { font-size: 14px; color: #555; margin-bottom: 24px; }
        .wa-open-btn {
            display: inline-block;
            background: #25D366;
            color: #fff !important;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            text-decoration: none;
            margin-bottom: 10px;
        }
        .wa-skip-btn {
            display: block;
            color: #888;
            font-size: 13px;
            cursor: pointer;
            margin-top: 8px;
            background: none;
            border: none;
            text-decoration: underline;
        }
        #wa-countdown { font-size: 13px; color: #aaa; margin-top: 6px; }
        /* ── CAPTCHA SECTION ── */
        #captcha-section {
            display: none;
            overflow: hidden;
        }
        #captcha-section.captcha-visible {
            display: block;
            animation: captchaSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
        }
        @keyframes captchaSlideIn {
            from { opacity: 0; transform: translateY(-20px) scale(0.95); }
            to   { opacity: 1; transform: translateY(0)    scale(1);    }
        }
        .captcha-box {
            background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
            border: 2px solid #e0e7ff;
            border-radius: 14px;
            padding: 24px 28px;
            margin-bottom: 20px;
            position: relative;
        }
        .captcha-box::before {
            content: '🔐 Security Check';
            display: block;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: #6366f1;
            margin-bottom: 14px;
        }
        .captcha-question-row {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .captcha-question-display {
            background: #fff;
            border: 2px solid #c7d2fe;
            border-radius: 10px;
            padding: 10px 20px;
            font-size: 22px;
            font-weight: 800;
            color: #312e81;
            letter-spacing: 2px;
            min-width: 140px;
            text-align: center;
            box-shadow: 0 2px 8px rgba(99,102,241,0.10);
        }
        .captcha-answer-input {
            width: 110px !important;
            padding: 10px 14px !important;
            font-size: 18px !important;
            font-weight: 700 !important;
            text-align: center !important;
            border: 2px solid #c7d2fe !important;
            border-radius: 10px !important;
            outline: none !important;
            transition: border-color 0.2s !important;
            background: #fff !important;
        }
        .captcha-answer-input:focus {
            border-color: #6366f1 !important;
            box-shadow: 0 0 0 3px rgba(99,102,241,0.15) !important;
        }
        .captcha-answer-input.input-error  { border-color: #e53935 !important; }
        .captcha-answer-input.input-success{ border-color: #43a047 !important; }
        .captcha-equals {
            font-size: 22px;
            font-weight: 800;
            color: #6366f1;
        }
        .captcha-refresh-btn {
            background: none;
            border: 2px solid #c7d2fe;
            border-radius: 50%;
            width: 36px; height: 36px;
            cursor: pointer;
            font-size: 16px;
            display: flex; align-items: center; justify-content: center;
            transition: all 0.2s;
            color: #6366f1;
            flex-shrink: 0;
        }
        .captcha-refresh-btn:hover {
            background: #e0e7ff;
            border-color: #6366f1;
            transform: rotate(180deg);
        }
        .captcha-hint {
            font-size: 12px;
            color: #94a3b8;
            margin-top: 10px;
        }
        /* Submit button states */
        #contact-submit-btn.captcha-mode {
            background: #6366f1;
        }
        #verify-submit-btn {
            margin-top: 4px;
        }